CN113233939A - Novel liquid nitrogen fertilizer and preparation method thereof - Google Patents
Novel liquid nitrogen fertilizer and preparation method thereof Download PDFInfo
- Publication number
- CN113233939A CN113233939A CN202110546777.8A CN202110546777A CN113233939A CN 113233939 A CN113233939 A CN 113233939A CN 202110546777 A CN202110546777 A CN 202110546777A CN 113233939 A CN113233939 A CN 113233939A
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- fertilizer
- cyanamide
- tank body
- nitrogen fertilizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 72
- 239000000618 nitrogen fertilizer Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 53
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 239000003381 stabilizer Substances 0.000 claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 26
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 26
- UFONUKZQWFSQLP-UHFFFAOYSA-N [N].NC#N Chemical compound [N].NC#N UFONUKZQWFSQLP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004202 carbamide Substances 0.000 claims abstract description 18
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract description 15
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims abstract description 13
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 57
- 238000007789 sealing Methods 0.000 claims description 15
- 230000035939 shock Effects 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 239000003337 fertilizer Substances 0.000 abstract description 39
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 15
- 239000002689 soil Substances 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 abstract description 2
- 108010046334 Urease Proteins 0.000 abstract description 2
- 230000005764 inhibitory process Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 2
- 210000005056 cell body Anatomy 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 7
- 235000015097 nutrients Nutrition 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000002411 adverse Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 241000209140 Triticum Species 0.000 description 3
- 235000021307 Triticum Nutrition 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- CSGLCWIAEFNDIL-UHFFFAOYSA-O azanium;urea;nitrate Chemical compound [NH4+].NC(N)=O.[O-][N+]([O-])=O CSGLCWIAEFNDIL-UHFFFAOYSA-O 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- ZIPLUEXSCPLCEI-UHFFFAOYSA-N cyanamide group Chemical group C(#N)[NH-] ZIPLUEXSCPLCEI-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 244000037666 field crops Species 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- 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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
- B01F29/83—Mixers with rotating receptacles rotating about a substantially vertical axis with rotary paddles or arms, e.g. movable out of the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
-
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- 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
- C05G5/20—Liquid fertilisers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F2035/35—Use of other general mechanical engineering elements in mixing devices
- B01F2035/351—Sealings
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pest Control & Pesticides (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Plant Pathology (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a novel liquid nitrogen fertilizer and a preparation method thereof. The novel liquid nitrogen fertilizer comprises, by mass, 90-99% of a mixed solution of urea and ammonium nitrate and 1-10% of a cyanamide nitrogen stabilizer, wherein the cyanamide nitrogen stabilizer is a mixture of cyanamide, thiourea and dicyandiamide, and the cyanamide nitrogen stabilizer comprises 10-20% of cyanamide, 20-30% of thiourea and 50-70% of dicyandiamide. The novel liquid nitrogen fertilizer is prepared by adding a nitrogen stabilizer into the liquid nitrogen fertilizer. The nitrogen stabilizer has obvious sterilization and inhibition effects on urease for decomposing urea and nitrite bacteria causing denitrification in soil, and is safe and pollution-free. In the production process of the fertilizer, the cyanamide nitrogen stabilizer is respectively added into a fertilizer production process system according to a certain proportion for homogeneous mixing, and different types of liquid nitrogen fertilizers containing the nitrogen stabilizer are produced. And the utilization rate of nitrogen in the liquid nitrogen fertilizer is improved, the fertilizer effect period is prolonged, and the purpose of no additional fertilizer application or less fertilizer application is realized.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to a novel liquid nitrogen fertilizer and a preparation method thereof.
Background
The chemical fertilizer industry in China develops rapidly, becomes the largest chemical fertilizer producing country and consuming country in the world, accounts for 30 percent of the total amount of the world, and is the first place in the world.
Compared with the fertilizer in developed countries, the fertilizer has low utilization rate, unreasonable formula and unbalanced nutrients. According to statistics, the utilization rate of nitrogenous fertilizer in China is 30% -40%, wherein the urea is about 35% -40%, and the content of phosphatic fertilizer is 10% -20%. 35 to 50 percent of potash fertilizer. The utilization rate of chemical fertilizer in China is 20 percent lower than that in developed countries. China has become a large country for producing and consuming chemical fertilizers, but is not a chemical fertilizer strong country, and with respect to nitrogen fertilizers with the largest nutrient amount needed by crops, although the traditional solid varieties of the nitrogen fertilizers in China have no great difference with the world in the aspects of high concentration, liquidization, energy conservation, mechanical application, functionalization and the like of the chemical fertilizers, the difference with the liquid fertilizer varieties and the application of developed countries in the world is large.
At present, liquid fertilizers are widely applied abroad, liquid nitrogen fertilizers account for 60% of the total nitrogen fertilizer usage in the United states, and Urea Ammonium Nitrate (UAN) accounts for 30% of the total nitrogen fertilizer usage (urea accounts for 26% and other fertilizers account for 16%). Various liquid nitrogen fertilizers are also used in large quantities in countries such as the united kingdom, germany, belgium, the netherlands, mexico, russia, etc.
The development of liquid nitrogen fertilizer in China is late, and the production and application are far lower than those of developed countries in Europe and America and the like under the influence of various factors. The liquid nitrogen fertilizer (UAN) is a non-pressure nitrogen solution, which is an aqueous solution of urea and ammonium nitrate, and commercial products usually contain N28% -32% (UAN) solution, which is composed of 30% -35% of urea, 38% -48% of ammonium nitrate and 20% -30% of water (all in mass%). The production can be directly made by dissolving urea and ammonium nitrate which are not concentrated in a nitrogen fertilizer plant with water.
There are many advantages to developing liquid nitrogen fertilizers. Firstly, the production cost is low, and the manufacturing enterprise can save part of equipment devices and cost for producing the solid fertilizer. The production process has no dust, no smoke, no environmental pollution and no harm to human health. Secondly, after the liquid nitrogen fertilizer is applied to the soil, the nutrient components can directly reach the root, and the quick-acting nitrogen can be directly absorbed and utilized by crops. Thirdly, the fertilizer is convenient and rapid to apply, can be directly used as a base fertilizer, can also be used as a foliar fertilizer for spraying, drip irrigation and flushing, and can also be used for spraying in combination with a pesticide. Is convenient for large-scale production and mechanized application. And fourthly, the liquid nitrogen fertilizer has three forms of nitrogen elements, is a liquid nitrogen fertilizer with quick and slow effects, and has higher fertilizer efficiency than the nitrogen fertilizer of a single nitrogen element variety. Can be used as a carrier for preparing fertilizer with various nutrient formulas. And simultaneously, the problem that the ammonium nitrate is easy to explode is solved.
The liquid nitrogen fertilizer has three forms of nitrogen, ammonium nitrogen, nitrate nitrogen and amide nitrogen, is a quick-acting and slow-acting liquid nitrogen fertilizer, and has higher fertilizer efficiency than the nitrogen fertilizer of a single nitrogen variety. The traditional liquid nitrogen fertilizer has quick-acting nutrients, is easy to run off in the early stage, has insufficient nutrients in the later stage, and cannot ensure the requirements of crops on the nutrients in the reproductive and growth period due to crop fertilizer release. In recent years, land circulation is aggravated, the traditional liquid nitrogen fertilizer cannot meet the requirements of planting households, and the later-stage topdressing of field crops requires more material resources and financial resources, so that the rapid development of agriculture is hindered.
Disclosure of Invention
Aiming at the technical problems, the invention provides a novel liquid nitrogen fertilizer and a preparation method thereof, and aims to solve the technical problem that the height and the angle of a spraying beam are inconvenient to adjust and the spraying effect is poor in the prior art.
The technical scheme of the novel liquid nitrogen fertilizer is as follows:
the novel liquid nitrogen fertilizer comprises, by mass, 90-99% of a mixed solution of urea and ammonium nitrate and 1-10% of a cyanamide nitrogen stabilizer, wherein the cyanamide nitrogen stabilizer is a mixture of cyanamide, thiourea and dicyandiamide, and the cyanamide nitrogen stabilizer comprises 10-20% of cyanamide, 20-30% of thiourea and 50-70% of dicyandiamide.
As a further improvement to the technical scheme, the nitrogen content of the liquid nitrogen fertilizer is 24-32%.
The technical scheme of the preparation method of the novel liquid nitrogen fertilizer is as follows:
a preparation method of a novel liquid nitrogen fertilizer comprises the following steps:
mixing urea with a certain mass fraction with an ammonium nitrate solution;
mixing a certain mass fraction of cyanamide, thiourea and dicyanodiamide to obtain a cyanamide nitrogen stabilizer;
sequentially adding 90-99% of urea and ammonium nitrate mixed solution and 1-10% of cyanamide nitrogen stabilizer into a mixing tank to be uniformly mixed;
the mixing tank used in the steps comprises a base, wherein the side part and the bottom of the base are sequentially wrapped with a buffer air cushion and a rubber shock pad from inside to outside, the bottom of the rubber shock pad is provided with a rubber non-slip pad, the top of the base is rotationally connected with a rotary disc, the rotary disc is fixedly provided with a tank body, the top of the tank body is open and is detachably connected with a sealing cover, the sealing cover is provided with a feeding pipe with a feeding valve, the center of the sealing cover is vertical and is rotationally provided with a stirring shaft, the rotation direction of the stirring shaft is opposite to that of the rotary disc, the bottom end of the stirring shaft extends into the bottom of the tank body, a plurality of groups of stirring paddles are distributed on the stirring shaft at intervals from top to bottom, each group of stirring paddles consists of a plurality of stirring rods which are radially arranged and are circumferentially distributed at intervals, the upper side and the lower side of each stirring rod are radially provided with a plurality of stirring support rods, and the upper side and the lower side of the tail end of each stirring rod are hinged with a rotating rod, and a discharge pipe with a discharge valve is arranged at the bottom of one side of the tank body.
As a further improvement to the technical scheme, the middle part and the bottom end of the stirring shaft are both provided with ultrasonic transducers, and a plurality of through holes are distributed on the stirring rod at intervals along the length direction of the stirring rod.
As a further improvement to the technical scheme, the top of the groove body is provided with a flange, the flange is provided with a sealing gasket, and the sealing gasket is pressed on the sealing gasket and is detachably and fixedly connected with the flange through a plurality of bolt assemblies.
As a further improvement to the technical scheme, a first motor is arranged in the center of the base, and an output shaft of the first motor penetrates out of the base upwards and is fixedly connected with the center of the bottom surface of the rotary table.
As the further improvement to above-mentioned technical scheme, in liquid nitrogen fertilizer pump sending to the cooling sampler after will mixing, carry out the sample detection to the liquid nitrogen fertilizer in the cooling sampler, the cooling sampler includes a jar body, jar be equipped with on the body with feed liquor pipe and the drain pipe of jar internal portion intercommunication, jar internal heat exchange coil pipe that is equipped with, the upper end of jar body is equipped with the outlet duct, the lower extreme of jar body is equipped with the delivery pipe.
As a further improvement to the technical scheme, a cleaning coil is arranged on the inner wall of the tank body, a plurality of spray holes arranged along the extension direction of the cleaning coil are formed in one side of the cleaning coil facing the inner part of the tank body, and a water pipe communicated with the cleaning coil is arranged on the tank body.
Compared with the prior art, the invention provides a novel liquid nitrogen fertilizer and a preparation method thereof, and the novel liquid nitrogen fertilizer has the following advantages:
the novel liquid nitrogen fertilizer is prepared by adding a nitrogen stabilizer into the liquid nitrogen fertilizer. The nitrogen stabilizer has obvious sterilization and inhibition effects on urease for decomposing urea and nitrite bacteria causing denitrification in soil, and is safe and pollution-free. In the production process of the fertilizer, the cyanamide nitrogen stabilizer is respectively added into a fertilizer production process system according to a certain proportion for homogeneous mixing, and different types of liquid nitrogen fertilizers containing the nitrogen stabilizer are produced. And the utilization rate of nitrogen in the liquid nitrogen fertilizer is improved, the fertilizer effect period is prolonged, and the purpose of no additional fertilizer application or less fertilizer application is realized.
Drawings
FIG. 1 is a flow chart of a process for the preparation of the novel liquid nitrogen fertilizer of the present invention;
FIG. 2 is a schematic structural view of a mixing tank used in the method for preparing the novel liquid nitrogen fertilizer of the present invention;
FIG. 3 is a schematic structural view of a cooling sampler used in the method for preparing the novel liquid nitrogen fertilizer of the present invention;
reference numbers in the figures: 1. a base; 2. a buffer air cushion; 3. a rubber shock pad; 4. a rubber non-slip mat; 5. a first motor; 6. a slider; 7. a turntable; 8. a trough body; 9. a flange; 10. a gasket; 11. a bolt assembly; 12. a sealing cover; 13. a feed valve; 14. a feed pipe; 15. a protective cover; 16. a second motor; 17. a stirring shaft; 18. a stirring rod; 19. stirring the supporting rod; 20. rotating the rod; 21. an ultrasonic transducer; 22. a through hole; 23. a discharge valve; 24. a discharge pipe; 25. a tank body; 26. a liquid inlet pipe; 27. a liquid outlet pipe; 28. a heat exchange coil; 29. an air outlet pipe; 30. a discharge pipe; 31. a support leg; 32. cleaning the coil pipe; 33. a water pipe.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
the specific embodiment of the novel liquid nitrogen fertilizer comprises 90-99% of mixed liquor of urea and ammonium nitrate and 1-10% of cyanamide nitrogen stabilizer, wherein the cyanamide nitrogen stabilizer is a mixture of cyanamide, thiourea and dicyandiamide, and the cyanamide nitrogen stabilizer comprises 10-20% of cyanamide, 20-30% of thiourea and 50-70% of dicyandiamide.
In the embodiment, the liquid nitrogen fertilizer is a mixed solution of urea and ammonium nitrate, the mass fraction of total nitrogen is 28-32%, and nitrate Nitrogen (NO)3-N) 6-9% by weight, ammonium Nitrogen (NH)4-N) is 6 to 9 percent by mass, and the amide nitrogen (CON-N) is 13 to 18 percent by mass.
In this embodiment, the cyanamide nitrogen stabilizer is a composition of cyanamide, thiourea and dicyandiamide. Wherein the mass fraction of the cyanamide is 1-10%, the mass fraction of the thiourea is 10-30%, and the mass fraction of the dicyandiamide is 60-90%.
The novel nitrogen fertilizer is uniformly sprayed in soil after soil preparation before sowing winter wheat, and then sowing is carried out. After the wheat seedlings turn green in spring, the root systems of the wheat seedlings are developed, the plants are robust, and the tillers are vigorous. The leaves are wide, long and thick in the jointing stage, and the stalks are hard and straight. The heading stage shows more green leaves, large and thick flag leaves, the effective spike number is increased by 2 to 3, and the main spike and the tillering spike are basically consistent.
The specific embodiment of the preparation method of the novel liquid nitrogen fertilizer disclosed by the invention is shown in figure 1 and comprises the following steps:
mixing urea with a certain mass fraction with an ammonium nitrate solution;
mixing a certain mass fraction of cyanamide, thiourea and dicyanodiamide to obtain a cyanamide nitrogen stabilizer;
sequentially adding 90-99% of urea and ammonium nitrate mixed solution and 1-10% of cyanamide nitrogen stabilizer into a mixing tank to be uniformly mixed;
and pumping the mixed liquid nitrogen fertilizer into a cooling sampler, and sampling and detecting the liquid nitrogen fertilizer in the cooling sampler.
As shown in fig. 2, the mixing tank used in the above steps includes a base 1, a buffer air cushion 2 and a rubber shock pad 3 are sequentially wrapped on the side and bottom of the base 1 from inside to outside, and a rubber anti-slip pad 4 is arranged at the bottom of the rubber shock pad 3. The buffering air cushion 2 wrapped outside the base 1 is matched with the rubber shock absorption pad 3, so that the overall buffering and shock absorption performance of the equipment can be greatly enhanced, the adverse effect of vibration generated during the operation of the equipment on the surrounding environment can be favorably reduced, the adverse effect of the vibration of the surrounding environment on the mixing operation can be effectively avoided, and the rubber anti-slip pad 4 at the bottom of the rubber shock absorption pad 3 can further enhance the friction force between the whole equipment and the ground, so that the equipment can be placed more stably and reliably, the working stability of a mixing tank can be better ensured, and the efficiency and the quality of the mixing operation can be better improved;
the top of base 1 rotates and is connected with carousel 7, has set firmly cell body 8 on carousel 7, and the top of cell body 8 is uncovered and can dismantle and be connected with sealed lid 12. The sealing cover 12 is provided with a feed pipe 14 with a feed valve 13 for feeding. The center of the sealing cover 12 is vertically and rotatably provided with a stirring shaft 17, the rotation direction of the stirring shaft 17 is opposite to that of the rotating disc 7, and the bottom end of the stirring shaft 17 extends into the inner bottom of the groove body 8. A plurality of groups of stirring paddles are distributed on the stirring shaft 17 at intervals up and down, each group of stirring paddles consists of a plurality of stirring rods 18 which are radially arranged and are circumferentially and uniformly distributed at intervals, a plurality of stirring support rods 19 are radially arranged on the upper side and the lower side of each stirring rod 18, and the upper side and the lower side of the tail end of each stirring rod are hinged with rotating rods 20. The bottom of one side of the tank body 8 is provided with a discharge pipe 24 with a discharge valve 23 for discharging. During the mixed operation, the rotation setting of carousel 7 can drive the whole revolution motion that carries on of cell body 8, and the rotation setting of (mixing) shaft 17 can drive the stirring rake on it and do the rotation motion opposite with cell body 8 direction to can form the convection current in the holistic circumference of material, can strengthen the effect that the stirring was mixed greatly with this, make the material mix more fully even, guarantee production efficiency and quality. Simultaneously, the stirring effect can be further strengthened in the setting of stirring branch 19 on every puddler 18 of stirring rake, more is favorable to carrying out high-efficient high-quality stirring mixing operation, and the articulated rotary rod 20 of every puddler 18 tail end can be along with the unordered rotary motion of puddler 18 pivoted self in to can produce stronger turbulent flow, can further strengthen the stirring effect of mixing to the material equally, make the material mix ground more evenly thoroughly, improve liquid nitrogenous production efficiency and finished product quality. In addition, cell body 8 and sealed 12 dismantling be connected, more be favorable to wasing the inside of cell body 8 when actual production, overhaul the change to parts such as (mixing) shaft 17, easy operation is convenient, more is favorable to guaranteeing the production quality of mixing tank, improves holistic use flexibility and convenience of equipment, makes equipment more practical.
In this embodiment, all be equipped with ultrasonic transducer 21 on (mixing) shaft 17's the middle part and the bottom, can provide the high frequency sound wave, can utilize the (mixing) shaft and its upper mixing paddle to carry out mechanical stirring in, carry out ultrasonic oscillation stirring to the material especially the material of cell body bottom, can further strengthen the effect that the stirring mixes, guarantee that the bottom material also can obtain intensive mixing, avoid stirring the dead angle, can make the material mix more completely and evenly, further guarantee liquid nitrogenous production efficiency and quality. The stirring rod 18 is provided with a plurality of through holes 22 at intervals along the length direction, which is more beneficial to the flow of liquid materials and ensures the effect of stirring and mixing.
In this embodiment, the top of cell body 8 is equipped with flange 9, is equipped with sealed pad 10 on the flange 9, and sealed lid 12 supports to press sealed pad 10 and can dismantle fixed connection through a plurality of bolt assembly 11 and flange 9 to this can realize cell body 8 and sealed dismantled being connected of lid 12 when guaranteeing mixed cell body 8's leakproofness, more is favorable to wasing the inside of cell body 8 when actual production, overhauls parts such as (mixing) shaft 17 and changes.
In this embodiment, the inside at base 1 center is equipped with first motor 5, and the output shaft of first motor 5 upwards wears out base 1 and with the bottom surface center fixed connection of carousel 7 for when using, accessible first motor 5 provides power, drives carousel 7 and the cell body 8 on it and carries out revolution motion, and the cooperation carries out high-efficient high-quality mixed operation.
In this embodiment, be equipped with a ring shape slider 6 on the week side of carousel 7 bottom surface, the spout of round adaptation in slider 6 has been seted up to the position department that the top of base 1 corresponds slider 6 for 7 accessible sliders 6 and spout sliding connection of carousel can further strengthen being connected of carousel 7 and base 1 when not influencing carousel 7 pivoted, and it is more steady when making carousel 7 rotate, guarantee going on smoothly stably of mixing operation, avoid influencing the quality of mixing operation.
In this embodiment, the top end of the stirring shaft 17 is connected with the second motor 16 in a transmission manner, so that when the mixer is used, the second motor 16 can provide power to drive the stirring shaft 17 and the stirring paddles thereon to rotate in a direction opposite to that of the tank body 8, thereby realizing high-efficiency and high-quality mixing operation. The outside cover of second motor 16 is equipped with the protection casing 15 of being made by the damping felt that gives sound insulation, can further effectively block the outside propagation of the noise that second motor 16 during operation produced when forming effective protection to second motor 16, is favorable to noise abatement pollution, makes the environmental protection practicality more of equipment.
In this embodiment, the inlet pipe 14 is equipped with a plurality ofly and be circumference interval equipartition on the week side of second motor 16, can realize the simultaneous feeding of multiple raw materials for production, and the quick development of the mixed operation of being more convenient for further improves the production efficiency of liquid nitrogen fertilizer. The tail end of the discharge pipe 24 is inclined downwards, so that the mixed materials can be discharged quickly.
In use, the feed valve 13 on the feed pipe 14 is opened, and the feed is rapidly fed through the plurality of feed pipes 14. After the feeding is finished, the feeding valve 13 is closed again to ensure the tightness of the tank body 8 and avoid the environmental pollution caused by the overflow of toxic and volatile production raw materials such as liquid ammonia. Then, the first motor 5 and the second motor 16 are operated simultaneously, so that the whole tank body 8 performs revolution motion, and the stirring shaft 17 and the upper stirring paddle thereof perform rotation motion in the direction opposite to that of the tank body 8, thereby realizing high-efficiency and high-quality stirring and mixing operation. After the mixing is finished, the discharge valve 23 on the discharge pipe 24 is opened, and the discharge is carried out through the discharge pipe 24. In the mixed operation process, utilize buffer air cushion 2 and rubber shock pad 3 can strengthen the holistic buffering shock attenuation performance of equipment greatly, existing vibrations that do benefit to the reduction equipment production are to the adverse effect of surrounding environment, can effectively avoid the adverse effect of surrounding environment's vibrations to the mixed operation again, rubber slipmat 4 can further strengthen the whole frictional force with ground of equipment simultaneously, it is more firm reliable to make equipment self place, thereby more can guarantee the stationarity of mixing tank during operation, more be favorable to improving the efficiency and the quality of mixed operation.
As shown in fig. 3, the cooling sampler used in the above steps includes a tank 25, legs 31 welded to the lower end of the tank 25, an air outlet pipe 29 welded to the top end of the tank 25 and communicating with the inside of the tank 25, and a discharge pipe 30 welded to the lower end of the tank 25 and communicating with the inside of the tank 25. The side wall of the tank body 25 is welded with a liquid inlet pipe 26 and a liquid outlet pipe 27, the liquid inlet pipe 26 and the liquid outlet pipe 27 are correspondingly arranged in the vertical direction, and the liquid inlet pipe 26 and the liquid outlet pipe 27 are located on the same side of the tank body 25. The internally mounted of jar body 25 has heat exchange coil 28, and heat exchange coil 28's upper end is stretched out to the upper end of jar body 25, and heat exchange coil 28 stretches out jar external upper end welding of body 25 and has a flange, and heat exchange coil 28's lower extreme stretches out to one side of jar body 25, and heat exchange coil 28 stretches out the tip fixedly connected with flange of jar body 25 one side. Fixedly connected with washs coil pipe 32 on the inner wall of jar body 25, washs coil pipe 32 and offers a plurality of spray orifice along wasing coil pipe 32 extending direction and arranging towards jar one side of the inside of body 25, and the welding has the water pipe 33 with wasing coil pipe 32 intercommunication on the outer wall of jar body 25.
When the cooling sampler is used, liquid nitrogen fertilizer enters the tank body 25 through the liquid inlet pipe 26, a cooling medium enters and exits the heat exchange spray pipe through the heat exchange coil 28, and the heat exchange coil 28 and the liquid nitrogen fertilizer are cooled. When the heat exchange coil 28 needs to be cleaned, water passes through the cleaning coil 32, and the water in the cleaning coil 32 is sprayed to the heat exchange coil 28 through the spray holes, so that the heat exchange coil 28 is cleaned.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The novel liquid nitrogen fertilizer is characterized by comprising 90-99% of mixed solution of urea and ammonium nitrate and 1-10% of cyanamide nitrogen stabilizer in mass ratio, wherein the cyanamide nitrogen stabilizer is a mixture of cyanamide, thiourea and dicyandiamide, and the cyanamide nitrogen stabilizer comprises 10-20% of cyanamide, 20-30% of thiourea and 50-70% of dicyandiamide.
2. The novel liquid nitrogen fertilizer as claimed in claim 1, characterized in that the nitrogen content of the liquid nitrogen fertilizer is 24-32%.
3. A preparation method of a novel liquid nitrogen fertilizer is characterized by comprising the following steps:
mixing urea with a certain mass fraction with an ammonium nitrate solution;
mixing a certain mass fraction of cyanamide, thiourea and dicyanodiamide to obtain a cyanamide nitrogen stabilizer;
sequentially adding 90-99% of urea and ammonium nitrate mixed solution and 1-10% of cyanamide nitrogen stabilizer into a mixing tank to be uniformly mixed;
the mixing tank used in the steps comprises a base, wherein the side part and the bottom of the base are sequentially wrapped with a buffer air cushion and a rubber shock pad from inside to outside, the bottom of the rubber shock pad is provided with a rubber non-slip pad, the top of the base is rotationally connected with a rotary disc, the rotary disc is fixedly provided with a tank body, the top of the tank body is open and is detachably connected with a sealing cover, the sealing cover is provided with a feeding pipe with a feeding valve, the center of the sealing cover is vertical and is rotationally provided with a stirring shaft, the rotation direction of the stirring shaft is opposite to that of the rotary disc, the bottom end of the stirring shaft extends into the bottom of the tank body, a plurality of groups of stirring paddles are distributed on the stirring shaft at intervals from top to bottom, each group of stirring paddles consists of a plurality of stirring rods which are radially arranged and are circumferentially distributed at intervals, the upper side and the lower side of each stirring rod are radially provided with a plurality of stirring support rods, and the upper side and the lower side of the tail end of each stirring rod are hinged with a rotating rod, and a discharge pipe with a discharge valve is arranged at the bottom of one side of the tank body.
4. The method for preparing a novel liquid nitrogen fertilizer as claimed in claim 3, wherein the middle part and the bottom end of the stirring shaft are respectively provided with an ultrasonic transducer, and a plurality of through holes are distributed on the stirring shaft at intervals along the length direction of the stirring shaft.
5. The method for preparing a novel liquid nitrogen fertilizer as claimed in claim 3, wherein a flange is arranged at the top of the groove body, a sealing gasket is arranged on the flange, and the sealing gasket is pressed on the sealing gasket and is detachably and fixedly connected with the flange through a plurality of bolt assemblies.
6. The method for preparing a novel liquid nitrogen fertilizer as claimed in claim 3, wherein the first motor is arranged in the center of the base, and the output shaft of the first motor extends upwards out of the base and is fixedly connected with the center of the bottom surface of the rotary table.
7. The method for preparing a novel liquid nitrogen fertilizer as claimed in claim 3, wherein the mixed liquid nitrogen fertilizer is pumped into a cooling sampler for sampling and detecting the liquid nitrogen fertilizer in the cooling sampler, the cooling sampler comprises a tank body, the tank body is provided with a liquid inlet pipe and a liquid outlet pipe which are communicated with the inside of the tank body, the tank body is internally provided with a heat exchange coil pipe, the upper end of the tank body is provided with an air outlet pipe, and the lower end of the tank body is provided with a discharge pipe.
8. The method for preparing a novel liquid nitrogen fertilizer as claimed in claim 7, wherein a cleaning coil is arranged on the inner wall of the tank body, a plurality of spray holes are arranged on one side of the cleaning coil facing the inside of the tank body along the extending direction of the cleaning coil, and a water pipe communicated with the cleaning coil is arranged on the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110546777.8A CN113233939A (en) | 2021-05-19 | 2021-05-19 | Novel liquid nitrogen fertilizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110546777.8A CN113233939A (en) | 2021-05-19 | 2021-05-19 | Novel liquid nitrogen fertilizer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113233939A true CN113233939A (en) | 2021-08-10 |
Family
ID=77137585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110546777.8A Pending CN113233939A (en) | 2021-05-19 | 2021-05-19 | Novel liquid nitrogen fertilizer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113233939A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921156A (en) * | 2010-08-03 | 2010-12-22 | 深圳市芭田生态工程股份有限公司 | Nitrogen stabilizer and its preparation method and application |
| CN104892298A (en) * | 2015-04-30 | 2015-09-09 | 宁夏共享生物化工有限公司 | Biochemical humic acid-containing liquid nitrogenous fertilizer and preparation method thereof |
| CN106588517A (en) * | 2016-12-21 | 2017-04-26 | 广东华汗农业科技有限公司 | Sustained-release liquid fertilizer and preparation method thereof |
| CN107626232A (en) * | 2017-11-09 | 2018-01-26 | 徐来 | A kind of liquid charging stock evenly mixing device |
| CN207662261U (en) * | 2017-12-15 | 2018-07-27 | 山东普瑞普勒能源科技有限公司 | A kind of full-welding plate-type heat exchanger with cleaning device |
| CN208389904U (en) * | 2018-03-12 | 2019-01-18 | 陈丽 | A kind of agricultural liquids fertilizer high-efficiency mixing device |
| CN109503273A (en) * | 2019-01-08 | 2019-03-22 | 王俊清 | A kind of liquid nitrogenous fertilizer |
| CN211401840U (en) * | 2019-12-31 | 2020-09-01 | 无锡维邦工业设备成套技术有限公司 | Pure steam cooling sampler |
-
2021
- 2021-05-19 CN CN202110546777.8A patent/CN113233939A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921156A (en) * | 2010-08-03 | 2010-12-22 | 深圳市芭田生态工程股份有限公司 | Nitrogen stabilizer and its preparation method and application |
| CN104892298A (en) * | 2015-04-30 | 2015-09-09 | 宁夏共享生物化工有限公司 | Biochemical humic acid-containing liquid nitrogenous fertilizer and preparation method thereof |
| CN106588517A (en) * | 2016-12-21 | 2017-04-26 | 广东华汗农业科技有限公司 | Sustained-release liquid fertilizer and preparation method thereof |
| CN107626232A (en) * | 2017-11-09 | 2018-01-26 | 徐来 | A kind of liquid charging stock evenly mixing device |
| CN207662261U (en) * | 2017-12-15 | 2018-07-27 | 山东普瑞普勒能源科技有限公司 | A kind of full-welding plate-type heat exchanger with cleaning device |
| CN208389904U (en) * | 2018-03-12 | 2019-01-18 | 陈丽 | A kind of agricultural liquids fertilizer high-efficiency mixing device |
| CN109503273A (en) * | 2019-01-08 | 2019-03-22 | 王俊清 | A kind of liquid nitrogenous fertilizer |
| CN211401840U (en) * | 2019-12-31 | 2020-09-01 | 无锡维邦工业设备成套技术有限公司 | Pure steam cooling sampler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102249775B (en) | Foliage fertilizer based on marsh liquid in domestic marsh gas tank and preparation method thereof | |
| CN101891549B (en) | Fulvic acid chelated nano element synergistic urea and preparation method thereof | |
| CN104163729A (en) | High-tower granulation compound fertilizer containing Gamma-polyglutamic acid as well as preparation method and application of high-tower granulation compound fertilizer containing Gamma-polyglutamic acid | |
| KR102324419B1 (en) | Method for manufacturing liquid fertilizer for promoting plant root growth | |
| CN102627497B (en) | Plant receptor sensitization fertilizer synergist | |
| CN216321912U (en) | Novel humic acid chelated fertilizer reaction equipment | |
| CN1546438A (en) | A kind of multifunctional chitin slow-release fertilizer | |
| CN107935725A (en) | A kind of preparation method of environment-protection type coated water soluble fertilizer | |
| CN111389249A (en) | Production equipment and production process of multi-element compound saline-alkali soil purifying agent containing nano humic acid | |
| CN205491764U (en) | Chemical fertilizer sprinkler | |
| CN108863660B (en) | Processing method of organic fertilizer | |
| CN106342460A (en) | Organic sheep-manure fertilizer fertigation method | |
| CN113233939A (en) | Novel liquid nitrogen fertilizer and preparation method thereof | |
| CN110036743A (en) | A kind of modern agriculture plantation efficient fertilizer apparatus with mixed function | |
| CN208627145U (en) | A kind of outfit device of agricultural Nutrition Soil | |
| CN114939374B (en) | High-tower active element fertilizer processing equipment for agricultural production and application method thereof | |
| CN215448703U (en) | Water-soluble fertilizer microelement detection device | |
| CN209824415U (en) | Vehicular orchard fertilization equipment | |
| CN208905290U (en) | A kind of agricultural corn fertilizer | |
| CN222842109U (en) | Chelating reaction device for preparing water-soluble fertilizer | |
| CN216533422U (en) | Pesticide sprinkler for farming | |
| CN214973317U (en) | Bio-organic fertilizer processing equipment | |
| CN111646842A (en) | Coated slow-release fertilizer and preparation method thereof | |
| CN208809879U (en) | It is a kind of with the compound fertilizer's mixing apparatus for rubbing function | |
| CN109851452A (en) | A kind of preparation method of the dedicated multielement composite biological organic fertilizer of leaf vegetables |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |