CN108276216A - A kind of urea of graphene-containing, process units and production technology - Google Patents
A kind of urea of graphene-containing, process units and production technology Download PDFInfo
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- CN108276216A CN108276216A CN201810160917.6A CN201810160917A CN108276216A CN 108276216 A CN108276216 A CN 108276216A CN 201810160917 A CN201810160917 A CN 201810160917A CN 108276216 A CN108276216 A CN 108276216A
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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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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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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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- Pest Control & Pesticides (AREA)
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Abstract
The invention belongs to a kind of urea of graphene-containing, process units and production technologies；The urea is prepared by following raw materials according according to parts by weight：0.1 0.5 parts of 95 99 parts of urea, 0.01 0.05 parts of graphene, 15 parts of water, 0.1 0.5 parts of dispersant and emulsifier；The dispersant is selected from one of calgon, sodium pyrophosphate, lauryl sodium sulfate, methyl anyl alcohol, cellulose, polyacrylamide, guar gum or fatty acid polyethylene glycol ester；The emulsifier is selected from one of polyacrylamide, xanthans, lignin, carboxymethyl cellulose, polyvinyl alcohol or dodecanol；Have the advantages that a variety of nutrition, the utilization rate for improving nitrogen, the Chlorophyll absorption for enhancing crop can be provided for the growth of crops and promotes crop fast-growth.
Description
Technical field
The invention belongs to technical field of urea production, and in particular to a kind of urea of graphene-containing, process units and production
Technique.
Background technology
China is a large agricultural country, also the production of chemical fertilizer and use big country, at present the overwhelming majority crops kind
It plants all using chemical fertilizer, the fertilising of especially high-end industrial crops, high efficiency fertilizer more plays very important work in agricultural is increased production
With the input amount of, chemical fertilizer in increased trend year by year, but when single nutrient urea is directly applied, utilization rate can not improve, and
More serious environmental pollution is brought, does not adapt to the requirement that applies fertilizers scientifically.The development of new urea is a kind of trend, is farming
The growth of object provides sufficient nutrition, while laying a good foundation for chemical fertilizer zero growth rate.
Specifically, urea, chemical name are carbonyl diamide, and molecular formula is C0 (NH2) 2, and nitrogen content 46.65% is
The highest solid nitrogenous fertilizer of nitrogen content, but for crops, the utilization rate of nitrogen only has 30%-35%, relies solely on nitrogen
Growth demand cannot be met, need to improve the utilization rate of nitrogen by adding some beneficial elements, crop is allowed to fully absorb, promoted
Growth.
Invention content
The purpose of the present invention is to overcome the defects in the prior art and provide a kind of can provide for the growth of crops
A variety of nutrition, improve nitrogen utilization rate, enhance crop Chlorophyll absorption and promote crop fast-growth graphene-containing urine
Element, process units and production technology.
The object of the present invention is achieved like this：The urea is prepared by following raw materials according according to parts by weight：Urea 95-
0.1-0.5 parts of 99 parts, 0.01-0.05 parts of graphene, 1-5 parts of water, 0.1-0.5 parts of dispersant and emulsifier；The dispersant choosing
From calgon, sodium pyrophosphate, lauryl sodium sulfate, methyl anyl alcohol, cellulose, polyacrylamide, guar gum or fat
One of acid polyethylene glycol ester；The emulsifier is selected from polyacrylamide, xanthans, lignin, carboxymethyl cellulose, polyvinyl alcohol
Or one of dodecanol.
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：98 parts of urea, graphite
0.1 part of 0.04 part of alkene, 3 parts of water, 0.5 part of dispersant and emulsifier；The dispersant is fatty acid polyethylene glycol ester；The emulsification
Agent is carboxymethyl cellulose.
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：97 parts of urea, graphite
0.1 part of 0.05 part of alkene, 2 parts of water, 0.2 part of dispersant and emulsifier；The dispersant is polyacrylamide；The emulsifier is wood
Quality.
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：96 parts of urea, graphite
0.2 part of 0.02 part of alkene, 4 parts of water, 0.1 part of dispersant and emulsifier；The dispersant is cellulose；The emulsifier is dodecane
Alcohol.
A kind of process units of the urea of graphene-containing, including carbamide production system pass through U-shaped with one section of evaporation reactor
Curved to be connected with two-section evaporating heater, two-section evaporating heater passes through dual circulation reactor and urea melting liquid pump and granulation tower
The prilling spry of inner top is connected, and is granulated tower bottom and is connected with packaging system by device for transporting objects, U-bend is equipped with three
Logical, the third end of threeway is connected by metering pump with the discharge port of suspended liquid bath, and the top of suspended liquid bath is equipped with stirring motor, stirs
Motor is mixed by agitating shaft to be connected with the stirring blade inside suspended liquid bath, the side of suspended liquid bath be equipped with dispersant feed inlet,
Emulsifier feed inlet, water inlet and graphene feed inlet, emulsifier feed inlet are connected by the first valve emulsifier storage tank, dispersion
Agent feed inlet is connected by the second valve with dispersant storage tank, and water inlet is connected by third valve with aqua storage tank, graphene into
Material mouth is connected by the 4th valve with graphene storage tank.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Water and graphene in emulsifier in emulsifier storage tank, the dispersant in dispersant storage tank, aqua storage tank
Graphene in storage tank respectively enters in suspended liquid bath；
Step 2：Stirring motor is opened, stirring blade is made to be stirred in suspended liquid bath, mixing time is 5-10 minutes to each
Until kind raw material becomes uniform suspension, graphene suspension is made；
Step 4：Metering pump is opened, keeps the discharge port that the graphene suspension in suspended liquid bath passes through suspended liquid bath quantitative
Into in U-bend, mixed into the graphene suspension in U-bend with the urea of the molten condition in one section of evaporation reactor
Enter in two-section evaporating heater afterwards, double evaporation-cooling is carried out to dual circulation reactor 16 after heating, removal graphene is outstanding
Entered in prilling spry by urea melting liquid pump after water in turbid, and is granulated in granulation tower；
Step 5：The particle condensed after granulation is entered in packaging system by device for transporting objects after packaging, you can is sold outside；
The device for transporting objects can be one of pipeline transporter or belt conveyor.
The leaf that the present invention has the utilization rate that can be provided a variety of nutrition for the growth of crops, improve nitrogen, enhances crop
The advantages of green element absorbs and promotes crop fast-growth.
Description of the drawings
Fig. 1 the structural representation of present invention.
Specific implementation mode
The present invention is a kind of urea of graphene-containing, process units and production technology；Wherein, the urea of graphene-containing is under
Row raw material is prepared according to parts by weight：95-99 parts of urea, 0.01-0.05 parts of graphene, 1-5 parts of water, dispersant 0.1-
0.5 part and 0.1-0.5 parts of emulsifier；The dispersant is selected from calgon, sodium pyrophosphate, lauryl sodium sulfate, methyl
One of amylalcohol, cellulose, polyacrylamide, guar gum or fatty acid polyethylene glycol ester；The emulsifier be selected from polyacrylamide,
One of xanthans, lignin, carboxymethyl cellulose, polyvinyl alcohol or dodecanol.
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：98 parts of urea, graphite
0.1 part of 0.04 part of alkene, 3 parts of water, 0.5 part of dispersant and emulsifier；The dispersant is fatty acid polyethylene glycol ester；The emulsification
Agent is carboxymethyl cellulose.
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：97 parts of urea, graphite
0.1 part of 0.05 part of alkene, 2 parts of water, 0.2 part of dispersant and emulsifier；The dispersant is polyacrylamide；The emulsifier is wood
Quality.
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：96 parts of urea, graphite
0.2 part of 0.02 part of alkene, 4 parts of water, 0.1 part of dispersant and emulsifier；The dispersant is cellulose；The emulsifier is dodecane
Alcohol.
As shown in Figure 1, a kind of process units of the urea of graphene-containing, which includes carbamide production system with one
Section evaporation reactor 14 is connected by U-bend 13 with two-section evaporating heater 15, and two-section evaporating heater 15 passes through dual circulation
Reactor 16 and urea melting liquid pump 17 are connected with the prilling spry 19 of 18 inner top of granulation tower, and 18 bottom of granulation tower passes through material
Conveying device is connected with packaging system 20, and U-bend 13 is equipped with threeway, and the third end of threeway passes through metering pump 12 and suspended liquid bath
9 discharge port is connected, and the top of suspended liquid bath 9 is equipped with stirring motor 10, and stirring motor 10 passes through in agitating shaft and suspended liquid bath 9
The stirring blade 11 in portion is connected, and the side of suspended liquid bath 9 is equipped with dispersant feed inlet, emulsifier feed inlet, water inlet and graphite
Alkene feed inlet, emulsifier feed inlet are connected by the first valve 5 with emulsifier storage tank 1, and dispersant feed inlet passes through the second valve 6
It is connected with dispersant storage tank 2, water inlet is connected by third valve 7 with aqua storage tank 3, and graphene feed inlet passes through the 4th valve 8
It is connected with graphene storage tank 4.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Stirring motor 10 is opened, it is 5-10 points to make the stirring in suspended liquid bath 9 of stirring blade 11, mixing time
Graphene suspension is made until various raw materials become uniform suspension in clock；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Heretofore described graphene is a kind of cellular flat film formed with sp2 hybrid forms by carbon atom,
It is the quasi- two-dimensional material of atomic layer level thickness there are one a kind of, monoatomic layer graphite is done so being called.As it is presently found most
The strongest a kind of novel nano-material of thin, maximum intensity, electrical and thermal conductivity performance, graphene are referred to as " dark fund ", be " new material it
King "；It is added in urea, absorption of the crop to chlorophyll can be increased, and there is preferable fertilizer efficiency.
In order to more clearly explain the present invention, it is further described in conjunction with specific embodiment.It is specific real
Under applying for example：
Embodiment one
A kind of urea of graphene-containing, process units and production technology；Wherein, the urea of graphene-containing is pressed by following raw materials according
It is prepared according to parts by weight：0.1 part of 95 parts of urea, 0.01 part of graphene, 1 part of water, 0.1 part of dispersant and emulsifier；It is described
Dispersant is calgon；The emulsifier is polyvinyl alcohol.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Open stirring motor 10, make the stirring in the suspended liquid bath 9 of stirring blade 11, mixing time be 5 minutes extremely
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Embodiment two
A kind of urea of graphene-containing, process units and production technology；Wherein, the urea of graphene-containing is pressed by following raw materials according
It is prepared according to parts by weight：0.5 part of 99 parts of urea, 0.05 part of graphene, 5 parts of water, 0.5 part of dispersant and emulsifier；It is described
Dispersant is sodium pyrophosphate；The emulsifier is xanthans.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Stirring motor 10 is opened, it is 10 minutes to make the stirring in suspended liquid bath 9 of stirring blade 11, mixing time
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Embodiment three
A kind of urea of graphene-containing, process units and production technology；Wherein, the urea of graphene-containing is pressed by following raw materials according
It is prepared according to parts by weight：0.3 part of 97 parts of urea, 0.03 part of graphene, 3 parts of water, 0.3 part of dispersant and emulsifier；It is described
Dispersant is lauryl sodium sulfate；The emulsifier is polyacrylamide.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Stirring motor 10 is opened, it is 7.5 minutes to make the stirring in suspended liquid bath 9 of stirring blade 11, mixing time
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Example IV
A kind of urea of graphene-containing, process units and production technology；Wherein, the urea of graphene-containing is pressed by following raw materials according
It is prepared according to parts by weight：0.2 part of 95 parts of urea, 0.05 part of graphene, 4 parts of water, 0.3 part of dispersant and emulsifier；It is described
Dispersant is methyl anyl alcohol；The emulsifier is carboxymethyl cellulose.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Open stirring motor 10, make the stirring in the suspended liquid bath 9 of stirring blade 11, mixing time be 6 minutes extremely
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Embodiment five
A kind of urea of graphene-containing, process units and production technology；Wherein, the urea of graphene-containing is pressed by following raw materials according
It is prepared according to parts by weight：0.1 part of 99 parts of urea, 0.01 part of graphene, 3 parts of water, 0.5 part of dispersant and emulsifier；It is described
Dispersant is guar gum；The emulsifier is xanthans.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Open stirring motor 10, make the stirring in the suspended liquid bath 9 of stirring blade 11, mixing time be 8 minutes extremely
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Embodiment six
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：98 parts of urea, graphite
0.1 part of 0.04 part of alkene, 3 parts of water, 0.5 part of dispersant and emulsifier；The dispersant is fatty acid polyethylene glycol ester；The emulsification
Agent is carboxymethyl cellulose.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Open stirring motor 10, make the stirring in the suspended liquid bath 9 of stirring blade 11, mixing time be 7 minutes extremely
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Embodiment seven
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：97 parts of urea, graphite
0.1 part of 0.05 part of alkene, 2 parts of water, 0.2 part of dispersant and emulsifier；The dispersant is polyacrylamide；The emulsifier is wood
Quality.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Open stirring motor 10, make the stirring in the suspended liquid bath 9 of stirring blade 11, mixing time be 9 minutes extremely
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
Embodiment eight
A kind of urea of graphene-containing, the urea are prepared by following raw materials according according to parts by weight：96 parts of urea, graphite
0.2 part of 0.02 part of alkene, 4 parts of water, 0.1 part of dispersant and emulsifier；The dispersant is cellulose；The emulsifier is dodecane
Alcohol.
A kind of production technology of the urea of graphene-containing, includes the following steps：
Step 1：Emulsifier in emulsifier storage tank 1, the dispersant in dispersant storage tank 2, water and stone in aqua storage tank 3
Graphene in black alkene storage tank 4 respectively enters in suspended liquid bath 9；
Step 2：Stirring motor 10 is opened, it is 9.5 minutes to make the stirring in suspended liquid bath 9 of stirring blade 11, mixing time
Until various raw materials become uniform suspension, graphene suspension is made；
Step 4：Metering pump 12 is opened, the graphene suspension in suspended liquid bath 9 is made to pass through the discharge port of suspended liquid bath 9
Quantitatively enter in U-bend 13, into the graphene suspension in U-bend 13 and the molten condition in one section of evaporation reactor 14
Urea mixing after enter two-section evaporating heater 15 in, after heating to dual circulation reactor 16 carry out double evaporation-cooling,
Entered in prilling spry 19 by urea melting liquid pump 17 after removing the water in graphene suspension, and is carried out in granulation tower 18
It is granulated；
Step 5：The particle condensed after granulation is entered in packaging system 20 by device for transporting objects after packaging, you can outer
It sells；The device for transporting objects can be one of pipeline transporter or belt conveyor.
The above embodiment is merely an example for clearly illustrating the present invention, and does not limit the embodiments.
For the general technical staff of fields, other various forms of variations can also be made on the basis of the above description
Or it changes.There is no necessity and possibility to exhaust all the enbodiments, and the obvious variation thus amplified out
Or among changing still in the invention scope of the claims.
Test example：
It tests and is carried out in Henan XInlianxin Fertiliser Limited Company's greenhouse in July, 2016~2016 year November, by 12
The soil of square meter is divided into four parts, and first part of 3 square meter is control group, and second part of 3 square meter is the first experimental group, 3 square meter of third part
For the second experimental group, the 4th part of 3 square meters are third experimental group, and each experimental group is each configured to 15-15-15, primary as base fertilizer
Property apply, dose be 50kg/ mus；Nitrogenous fertilizer is experiment urea, and phosphorus potash fertilizer is double superhosphate and potassium sulfate, and each experimental group is set
3 repetitions are set, each cell dose is as follows：Control group not use by nitrogen fertilizer application, the first experimental group common urea, the second experimental group
Graphene urea, third experimental group graphene reduced urea 20%, are made into 15-15- with double superhosphate and potassium sulfate respectively
15 BB fertilizer, disposably applies as base fertilizer, and dose is 50kg/ mus.Each cell dose is as follows：
Table 1：Different disposal dose
One, project is measured
1、SPAD：The chlorophyll content of topmost blade is measured when 4th leaf is fully deployed；
2, the number of blade：Results of regular determination Plant Leaf the piece number；
3, fresh weight：Overground part fresh weight is measured when harvest；
4, yield：Yield is measured after harvesting.
5, fertilizer utilization efficiency is measured
Before 5.1 fertilisings, nutrient content in soil is measured
After 5.2 harvests, nutrient content in soil is measured
After 5.3 harvests, nutrient content in plant is measured
6, Economic and Efficiency Analysis is harvested
By comparing cost, crop analysis, economic benefit is measured.
Two, result and analysis
Table 1：Influence (mg g-1) of the different Urea treatments to plant chlorophyll
By being periodically measured to different disposal chlorophyll, the BB fertilizer processing that the same time contains nitrogen is better than not nitrogen fertilizer application
Processing 1, wherein handling 3 chlorophyll levels is significantly higher than processing 1.Processing 3 is above processing in each period chlorophyll levels
2, but there is no significant difference.4 chlorophyll levels are handled less than processing 3, for entirety, 4 chlorophyll levels of processing are slightly below located
Reason 2.
Table 2：Influence (piece/strain) of the different Urea treatments to Plant Leaf the piece number
As seen from the above table, 3 Plant Leaf the piece numbers are generally handled and are better than other processing.At BB fertilizer containing graphene urea
Reason 3 and 4 numbers of blade of processing are above processing 2 in each period.
Table 3：Influence (g/ plant) of the different Urea treatments to plant fresh weight
Containing urea BB fertilizer processing fresh weight be above it is not urea-containing processing 1.Graphene BB fertilizer processing fresh weight reaches most
Big value 45.74, is higher than common BB fertilizer 9.2%.BB fertilizer processing 3 and 4 plant fresh weights of processing containing graphene urea are slightly above located
Reason 2, but difference is not notable.
Table 4：Influence (g/ plant) of the different Urea treatments to plant weights
All in all, plant weights difference is not notable between each processing.BB fertilizer processing dry weight containing urea is above
It is not urea-containing to handle 1.Graphene BB fertilizer processing dry weight reaches maximum value 5.74, is higher than common BB fertilizer 4.36%.Contain graphite
The BB fertilizer processing 3 of alkene urea and 4 plant fresh weights of processing are slightly above common BB fertilizer, but difference is not notable.
Table 5：Influence (%) of the different Urea treatments to plant NPK
Generally speaking, influence of the different disposal to plant sample NPK contents is different.Processing 3 containing graphene and processing 4 have
Conducive to the accumulation of the substance containing N in plant body, plant nitrogen content is significantly higher than processing 1 and processing 2.
Summation highest of 4 pairs of plant containing Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 is handled, nitrogen fertilizer application is not minimum to the summation of crop P.But everywhere
There is no significant difference between reason.
Summation height to plant substance containing K is that 2 ＞ of processing handle 3 ＞, 4 ＞ of processing processing 1 respectively.Processing 2 and place
There is no significant difference, significant difference between processing 2, processing 3 and processing 4, processing 1 between reason 3.
Table 6：Influence (mg/L) of the different Urea treatments to soil NPK
By the measurement to NPK contents in harvest time potting soil, the results show that soil is minimum containing NP in 3 pottings of processing,
Illustrate that graphene can promote the absorption of plant pair NP fertilizer, promotes the accumulation of crop substance containing NP.And the processing of graphene-containing is not
Conducive to the absorption of plant pair K fertilizer, the accumulation of plant pair substance containing K can not be promoted.
Claims (6)
1. a kind of urea of graphene-containing, it is characterised in that：The urea is prepared by following raw materials according according to parts by weight：Urea
0.1-0.5 parts of 95-99 parts, 0.01-0.05 parts of graphene, 1-5 parts of water, 0.1-0.5 parts of dispersant and emulsifier；The dispersant
Selected from calgon, sodium pyrophosphate, lauryl sodium sulfate, methyl anyl alcohol, cellulose, polyacrylamide, guar gum or fat
One of fat acid polyethylene glycol ester；The emulsifier is selected from polyacrylamide, xanthans, lignin, carboxymethyl cellulose, polyethylene
One of alcohol or dodecanol.
2. a kind of urea of graphene-containing according to claim 1, it is characterised in that：The urea is by following raw materials according according to weight
Amount number is prepared：0.1 part of 98 parts of urea, 0.04 part of graphene, 3 parts of water, 0.5 part of dispersant and emulsifier；The dispersion
Agent is fatty acid polyethylene glycol ester；The emulsifier is carboxymethyl cellulose.
3. a kind of urea of graphene-containing according to claim 1, it is characterised in that：The urea is by following raw materials according according to weight
Amount number is prepared：0.1 part of 97 parts of urea, 0.05 part of graphene, 2 parts of water, 0.2 part of dispersant and emulsifier；The dispersion
Agent is polyacrylamide；The emulsifier is lignin.
4. a kind of urea of graphene-containing according to claim 1, it is characterised in that：The urea is by following raw materials according according to weight
Amount number is prepared：0.2 part of 96 parts of urea, 0.02 part of graphene, 4 parts of water, 0.1 part of dispersant and emulsifier；The dispersion
Agent is cellulose；The emulsifier is dodecanol.
5. a kind of process units of the urea of graphene-containing as described in claim 1, it is characterised in that：The process units includes urine
Plain production system is connected by U-bend (13) with two-section evaporating heater (15) with one section of evaporation reactor (14), dual circulation
Heater (15) is sprayed by dual circulation reactor (16) and urea melting liquid pump (17) and the granulation of granulation tower (18) inner top
Head (19) is connected, and granulation tower (18) bottom is connected by device for transporting objects with packaging system (20), and U-bend (13) is equipped with three
Logical, the third end of threeway is connected by metering pump (12) with the discharge port of suspended liquid bath (9), and the top of suspended liquid bath (9) is equipped with
Stirring motor (10), stirring motor (10) are connected by the agitating shaft stirring blade (11) internal with suspended liquid bath (9), suspension
The side of slot (9) is equipped with dispersant feed inlet, emulsifier feed inlet, water inlet and graphene feed inlet, and emulsifier feed inlet is logical
It crosses the first valve (5) with emulsifier storage tank (1) to be connected, dispersant feed inlet passes through the second valve (6) and dispersant storage tank (2) phase
Even, water inlet is connected by third valve (7) with aqua storage tank (3), and graphene feed inlet is stored up by the 4th valve (8) and graphene
Slot (4) is connected.
6. a kind of production technology of the urea of graphene-containing as described in claim 1, is characterized in that：The production technology includes as follows
Step：
Step 1：Emulsifier in emulsifier storage tank (1), the dispersant in dispersant storage tank (2), the water in aqua storage tank (3) and
Graphene in graphene storage tank (4) respectively enters in suspended liquid bath (9)；
Step 2：Stirring motor (10) is opened, stirring blade (11) stirring, mixing time 5-10 in suspended liquid bath (9) are made
Until various raw materials become uniform suspension, graphene suspension is made in minute；
Step 4：Metering pump (12) is opened, discharging of the graphene suspension in suspended liquid bath (9) by suspended liquid bath (9) is made
Mouth quantitatively enters in U-bend (13), into U-bend (13) graphene suspension in one section of evaporation reactor (14)
Enter in two-section evaporating heater (15) after the urea mixing of molten condition, is carried out to dual circulation reactor 16 after heating
Double evaporation-cooling is entered by urea melting liquid pump (17) in prilling spry (19) after removing the water in graphene suspension, and
It is granulated in granulation tower (18)；
Step 5：The particle condensed after granulation is entered in packaging system (20) by device for transporting objects after packaging, you can is sold outside；
The device for transporting objects can be one of pipeline transporter or belt conveyor.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747954A (en) * | 2016-11-25 | 2017-05-31 | 广西田园生化股份有限公司 | A kind of foliar fertilizer of graphene-containing nano material |
| CN106986707A (en) * | 2017-05-16 | 2017-07-28 | 东北农业大学 | A kind of liquid level fertilizer and preparation method containing modified graphene oxide |
| CN107141176A (en) * | 2017-05-24 | 2017-09-08 | 河南心连心化肥有限公司 | Urea, process units and the production technology of a kind of humic acid containing zinc |
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2018
- 2018-02-09 CN CN201810160917.6A patent/CN108276216A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747954A (en) * | 2016-11-25 | 2017-05-31 | 广西田园生化股份有限公司 | A kind of foliar fertilizer of graphene-containing nano material |
| CN106986707A (en) * | 2017-05-16 | 2017-07-28 | 东北农业大学 | A kind of liquid level fertilizer and preparation method containing modified graphene oxide |
| CN107141176A (en) * | 2017-05-24 | 2017-09-08 | 河南心连心化肥有限公司 | Urea, process units and the production technology of a kind of humic acid containing zinc |
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