CN112462010A - Inspection processing technology for production of special controlled release fertilizer for pineapples - Google Patents
Inspection processing technology for production of special controlled release fertilizer for pineapples Download PDFInfo
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- CN112462010A CN112462010A CN202011541103.0A CN202011541103A CN112462010A CN 112462010 A CN112462010 A CN 112462010A CN 202011541103 A CN202011541103 A CN 202011541103A CN 112462010 A CN112462010 A CN 112462010A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 74
- 238000013270 controlled release Methods 0.000 title claims abstract description 56
- 241000234671 Ananas Species 0.000 title claims abstract description 31
- 235000007119 Ananas comosus Nutrition 0.000 title claims abstract description 31
- 238000005516 engineering process Methods 0.000 title claims abstract description 24
- 238000012545 processing Methods 0.000 title claims abstract description 24
- 238000007689 inspection Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000002386 leaching Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 45
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 238000005303 weighing Methods 0.000 claims abstract description 31
- 239000012153 distilled water Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000012216 screening Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 13
- 235000021049 nutrient content Nutrition 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 45
- 235000015097 nutrients Nutrition 0.000 claims description 30
- 230000029087 digestion Effects 0.000 claims description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 15
- 238000005070 sampling Methods 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 10
- 238000004821 distillation Methods 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- 239000011591 potassium Substances 0.000 claims description 10
- 229910052700 potassium Inorganic materials 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004327 boric acid Substances 0.000 claims description 5
- 239000003517 fume Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- 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
-
- 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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- 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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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Abstract
The invention discloses a checking and processing technology for production of a special controlled release fertilizer for pineapples, which comprises S1, preparation of raw materials, S11, preparation of a certain amount of raw materials, a grinder and a weighing machine, wherein the raw materials of the controlled release fertilizer are ground and ground by the grinder, then screening is carried out, unqualified ground materials are screened, qualified materials are stored for later use, S2, a standing and leaching method, S21, a certain amount of distilled water 200ml is added into a storage vessel in S12, then shaking is carried out for a certain time, liquid in the storage vessel is shaken uniformly, and then cooling is carried out to room temperature for constant volume operation, and S3 and a nutrient content measuring method are adopted. According to the inspection processing technology for the production of the special controlled release fertilizer for the pineapples, a screening step is added after the crushing step is carried out in the inspection processing technology, so that the crushed coated controlled release fertilizer and the crushed common fertilizer can be conveniently screened, the particle size meeting later inspection can be conveniently obtained, and the inspection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of production of special controlled release fertilizer for pineapples, in particular to a checking and processing technology for production of the special controlled release fertilizer for pineapples.
Background
The controlled release fertilizer is one of various fertilizers, compared with the traditional fertilizer, the controlled release fertilizer has the function of slowly releasing controllable nutrients, avoids the loss of nutrients, and along with the difference of the objects of the controlled release fertilizer, the types and the contents of the controlled release fertilizer are different, at present, along with the continuous development of science and technology, the demand of people on fruits is gradually increased, the pineapples enter the life of people, the pineapples are sour, sweet and delicious, and further meet the taste of most people, so the pineapples are widely loved, in order to improve the yield and the quality of pineapple planting, the controlled release fertilizer special for the pineapples appears on the market, a certain amount of nutrients are supplied by the controlled release fertilizer special for the pineapples when the pineapples are planted, so as to meet the growth demand of the pineapples, the nutrient content and the release rate of the controlled release fertilizer special for the pineapples on the market need to be detected after the production is finished, so as to, although the production of the special controlled release fertilizer for pineapples on the market has many types and methods of detection processing, the special controlled release fertilizer for pineapples has some defects in the using process, such as:
1. when the existing inspection processing technology for producing the controlled release fertilizer special for the pineapples is used for rapidly measuring the nutrient release rate, the coated controlled release fertilizer is directly crushed for use, and some crushed fertilizers are incomplete and incomplete, so that the crushed particles are too large or too small, and further the measurement result at the later stage is influenced;
2. when the existing inspection processing technology for producing the controlled release fertilizer special for the pineapples is used for rapidly measuring the nutrient release rate, no comparison experiment is carried out, only the coated controlled release fertilizer is singly detected, and the nutrient release effect of the coated controlled release fertilizer cannot be well known;
therefore, we propose a testing and processing technology for the production of the controlled release fertilizer special for pineapples, so as to solve the problems proposed in the above.
Disclosure of Invention
The invention aims to provide an inspection processing technology for producing a special controlled-release fertilizer for pineapples, and the inspection processing technology is used for solving the problems that the existing inspection processing technology for producing the special controlled-release fertilizer for pineapples directly crushes and uses the coated controlled-release fertilizer when the nutrient release rate is rapidly measured, the crushed particles are too large or too small due to incomplete and incomplete crushing, and further the measurement result in the later period is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a checking and processing technology for producing a controlled release fertilizer special for pineapples comprises the following steps:
s1, preparing raw materials, comprising the following substeps:
s11, preparing a certain amount of raw materials, a grinder and a weighing machine, grinding and grinding the raw materials of the controlled release fertilizer by the grinder, then screening, screening unqualified ground materials, and storing qualified materials for later use;
s12, paving a piece of paper on the weighing machine, and then pouring a certain amount of raw materials to weigh on the paper on the weighing machine;
s13, weighing a certain weight, stopping adding the raw materials, and pouring the raw materials on the paper into a placing vessel for later use;
s2, the standing leaching method comprises the following substeps:
s21, adding a certain amount of distilled water 200ml into the placing vessel in the S12, shaking for a certain time, shaking up the liquid in the placing vessel, and cooling to room temperature for constant volume operation;
s22, respectively placing the placing vessels in constant temperature boxes at different temperatures according to the time intervals of 1d, 4d, 8d, 12d, 18d, 17d and 27d..
S23, then according to the time interval: sampling for 1h, 4h, 6h, 8h, 10h, 12h, 14h, 18h and 24h, manually turning the vessel upside down for 3 times before sampling so that the concentration of liquid in the vessel is consistent, pouring a part of extracted liquid into a sample bottle, and then performing sealing operation while noting sampling time and number;
s24, adding 200ml of distilled water again after a period of time, sealing and continuing the leaching work of the next period of time;
s3, the nutrient content determination method comprises the following substeps:
s31, sucking a certain amount of 2.0-6.0L of the leaching liquor by a pipette, then putting the leaching liquor into a digestion tube, adding 0.2-0.7g of Cr powder into the digestion tube, then adding 4.5-6.5ml of concentrated hydrochloric acid, and then shaking;
s32, after shaking for a period of time, standing for a period of time, clamping the digestion tube by a clamping tool, and placing the digestion tube on a heating furnace by holding the clamping tool to perform reciprocating heating so as to heat the digestion tube uniformly;
s33, when boiling occurs after heating for a period of time, stopping heating, cooling for a period of time, and adding 5.0ml of concentrated sulfuric acid after cooling for a period of time;
s34, placing the solution in a fume hood for ventilation, observing the color of the upper solution after a period of time, and moving the solution if the color of the upper solution is clear;
s35, placing the solution on a distillation device for distillation, absorbing ammonia by using 2% boric acid, and then measuring the content of ammonia;
and S36, sucking a certain amount of the leaching liquor by using a pipette, placing the leaching liquor into a volumetric flask with a certain volume, performing constant volume by using distilled water, and measuring potassium in the leaching liquor by using a flame photometer.
S4, rapid determination of nutrient release rate, comprising the following substeps:
s41, preparation of standard series of concentrations:
s411, respectively weighing 10.0g of coated controlled release fertilizer and common fertilizer, and then crushing by a crusher;
s412, after being crushed, screening and filtering the crushed materials by a filtering device, and extracting crushed qualified materials for later use;
s42, weighing a certain amount of 5.00g of the crushed material of the coated controlled release fertilizer and the crushed material of the fertilizer, respectively putting the materials into two beakers of 100ml, and then adding a certain amount of distilled water into the two beakers for dissolving;
s43, repeatedly washing for 4-7 times, then drawing 0, 20, 40, 60, 80, 100 and 120ml volumetric flasks from the flasks, placing the volumetric flasks in an environment with the same other factors, changing the temperature, observing the influence of the temperature on the nutrient release rate, and measuring the concentration values of the total nutrients of nitrogen, phosphorus and potassium in the conductivity meter and the standard series by using a conductivity meter;
s44, measuring the conductivity value of the leaching solution, and obtaining the nutrient release rate from the standard curve;
and S5, summarizing data statistics, and obtaining a conclusion.
Preferably, the temperature control values of the oven in S22 are 24 ℃, 44 ℃ and 66 ℃, and the service time of the oven is 40-57 min.
Preferably, the standing time in S32 ranges from 6 to 13min, the heating temperature of the heating furnace in S32 ranges from 50 to 70 ℃, and the heating time of the heating furnace in S32 ranges from 35 to 55 min.
Preferably, the amount of the pipette in S36 to suck up the leaching solution is in the range of 2.0-6.0L.
Preferably, the size of the mesh diameter of the filtering device in S412 is 10-15mm, and the particle size range of the qualified material sieved in S412 is 11-14 mm.
Preferably, the temperature range for heating the volumetric flask in S43 is 0-120 ℃.
Compared with the prior art, the invention has the beneficial effects that: the inspection processing technology for the production of the controlled release fertilizer special for the pineapples;
(1) after the crushing step is carried out in the detection processing technology, a screening step is added, so that the crushed coated controlled-release fertilizer and the crushed common fertilizer can be screened conveniently, the particle size meeting the later detection can be obtained conveniently, the later detection work is facilitated, the influence on the later detection work due to different particle sizes is avoided, and the detection accuracy is improved;
(2) when the nutrient release rate is rapidly measured, two materials of the coated controlled release fertilizer and the common fertilizer are used for comparison, so that a later comparison experiment is facilitated, the advantages of the coated controlled release fertilizer and the nutrient release rate of the coated controlled release fertilizer at different temperatures can be seen more visually, the heating temperature is controlled to be 0-120 ℃, the release rate of the coated controlled release fertilizer at the temperature of 75-85 ℃ is the maximum, the temperatures below 60 ℃ and above 90 ℃ are not suitable, the release rate of the common fertilizer is high, and the fertilizer is easy to lose.
Drawings
FIG. 1 is a graph illustrating the effect of temperature on the nutrient release rate of a controlled release fertilizer according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-1, the present invention provides a technical solution: a checking and processing technology for the production of the controlled release fertilizer special for the pineapples comprises the following steps:
s1, preparing raw materials, comprising the following substeps:
s11, preparing a certain amount of raw materials, a grinder and a weighing machine, grinding and grinding the raw materials of the controlled release fertilizer by the grinder, then screening, screening unqualified ground materials, and storing qualified materials for later use;
s12, paving a piece of paper on the weighing machine, and then pouring a certain amount of raw materials to weigh on the paper on the weighing machine;
s13, weighing a certain weight, stopping adding the raw materials, and pouring the raw materials on the paper into a placing vessel for later use;
s2, the standing leaching method comprises the following substeps:
s21, adding a certain amount of distilled water 200ml into the placing vessel in the S12, shaking for a certain time, shaking up the liquid in the placing vessel, and cooling to room temperature for constant volume operation;
s22, respectively placing the placing vessels in constant temperature boxes at different temperatures according to the time intervals of 1d, 4d, 8d, 12d, 18d, 17d and 27d..
S23, then according to the time interval: sampling for 1h, 4h, 6h, 8h, 10h, 12h, 14h, 18h and 24h, manually turning the vessel upside down for 3 times before sampling so that the concentration of liquid in the vessel is consistent, pouring a part of extracted liquid into a sample bottle, and then performing sealing operation while noting sampling time and number;
s24, adding 200ml of distilled water again after a period of time, sealing and continuing the leaching work of the next period of time;
s3, the nutrient content determination method comprises the following substeps:
s31, sucking a certain amount of 2.0-6.0L of the leaching liquor by a pipette, then putting the leaching liquor into a digestion tube, adding 0.2-0.7g of Cr powder into the digestion tube, then adding 4.5-6.5ml of concentrated hydrochloric acid, and then shaking;
s32, after shaking for a period of time, standing for a period of time, clamping the digestion tube by a clamping tool, and placing the digestion tube on a heating furnace by holding the clamping tool to perform reciprocating heating so as to heat the digestion tube uniformly;
s33, when boiling occurs after heating for a period of time, stopping heating, cooling for a period of time, and adding 5.0ml of concentrated sulfuric acid after cooling for a period of time;
s34, placing the solution in a fume hood for ventilation, observing the color of the upper solution after a period of time, and moving the solution if the color of the upper solution is clear;
s35, placing the solution on a distillation device for distillation, absorbing ammonia by using 2% boric acid, and then measuring the content of ammonia;
and S36, sucking a certain amount of the leaching liquor by using a pipette, placing the leaching liquor into a volumetric flask with a certain volume, performing constant volume by using distilled water, and measuring potassium in the leaching liquor by using a flame photometer.
S4, rapid determination of nutrient release rate, comprising the following substeps:
s41, preparation of standard series of concentrations:
s411, respectively weighing 10.0g of coated controlled release fertilizer and common fertilizer, and then crushing by a crusher;
s412, after being crushed, screening and filtering the crushed materials by a filtering device, and extracting crushed qualified materials for later use;
s42, weighing a certain amount of 5.00g of the crushed material of the coated controlled release fertilizer and the crushed material of the fertilizer, respectively putting the materials into two beakers of 100ml, and then adding a certain amount of distilled water into the two beakers for dissolving;
s43, repeatedly washing for 4-7 times, then drawing 0, 20, 40, 60, 80, 100 and 120ml volumetric flasks from the flasks, placing the volumetric flasks in an environment with the same other factors, changing the temperature, observing the influence of the temperature on the nutrient release rate, and measuring the concentration values of the total nutrients of nitrogen, phosphorus and potassium in the conductivity meter and the standard series by using a conductivity meter;
s44, measuring the conductivity value of the leaching solution, and obtaining the nutrient release rate from the standard curve;
and S5, summarizing data statistics, and obtaining a conclusion.
The temperature control values of the thermostat in S22 are 24 ℃, 44 ℃ and 66 ℃, the service time of the thermostat is 40-57min, and the temperature control values of the thermostat are 24 ℃, 44 ℃ and 66 ℃, so that the influence of different temperatures can be conveniently observed.
The standing time range in S32 is 6-13min, the heating temperature range of the heating furnace in S32 is 50-70 ℃, the heating time of the heating furnace in S32 is 35-55min, and the standing time range in S32 is 6-13min, so that good standing is facilitated for reaction.
The suction quantity of the pipette in the S36 for the leaching solution is in the range of 2.0-6.0L, and the suction quantity is in the range of 2.0-6.0L, so that the leaching solution can be conveniently measured at the later stage.
The diameter of the mesh of the filtering device in the S412 is 10-15mm, the particle size range of the qualified material sieved in the S412 is 11-14mm, and the particle size range of the qualified material sieved in the S412 is 11-14mm, so that the particle size of the material is controlled, and the influence on later use caused by overlarge or undersize particle sizes is avoided.
The temperature range in which the flask in S43 was heated was 0 to 120 ℃ and a suitable temperature range was determined from the temperature range of 0 to 120 ℃.
The first embodiment is as follows:
s1, preparing raw materials, comprising the following substeps:
s11, preparing a certain amount of raw materials, a grinder and a weighing machine, grinding and grinding the raw materials of the controlled release fertilizer by the grinder, then screening, screening unqualified ground materials, and storing qualified materials for later use;
s12, paving a piece of paper on the weighing machine, and then pouring a certain amount of raw materials to weigh on the paper on the weighing machine;
s13, weighing a certain weight, stopping adding the raw materials, and pouring the raw materials on the paper into a placing vessel for later use;
s2, the standing leaching method comprises the following substeps:
s21, adding a certain amount of distilled water 200ml into the placing vessel in the S12, shaking for a certain time, shaking up the liquid in the placing vessel, and cooling to room temperature for constant volume operation;
s22, respectively placing the placing vessels in constant temperature boxes at different temperatures according to the time intervals of 1d, 4d, 8d, 12d, 18d, 17d and 27d..
S23, then according to the time interval: sampling for 1h, 4h, 6h, 8h, 10h, 12h, 14h, 18h and 24h, manually turning the vessel upside down for 3 times before sampling so that the concentration of liquid in the vessel is consistent, pouring a part of extracted liquid into a sample bottle, and then performing sealing operation while noting sampling time and number;
s24, adding 200ml of distilled water again after a period of time, sealing and continuing the leaching work of the next period of time;
s3, the nutrient content determination method comprises the following substeps:
s31, sucking a certain amount of 2.0L of the leaching liquor by a pipette, then placing the leaching liquor into a digestion tube, adding 0.2g of Cr powder into the digestion tube, then adding 4.5ml of concentrated hydrochloric acid, and then shaking;
s32, after shaking for a period of time, standing for a period of time, clamping the digestion tube by a clamping tool, and placing the digestion tube on a heating furnace by holding the clamping tool to perform reciprocating heating so as to heat the digestion tube uniformly;
s33, when boiling occurs after heating for a period of time, stopping heating, cooling for a period of time, and adding 5.0ml of concentrated sulfuric acid after cooling for a period of time;
s34, placing the solution in a fume hood for ventilation, observing the color of the upper solution after a period of time, and moving the solution if the color of the upper solution is clear;
s35, placing the solution on a distillation device for distillation, absorbing ammonia by using 2% boric acid, and then measuring the content of ammonia;
and S36, sucking a certain amount of the leaching liquor by using a pipette, placing the leaching liquor into a volumetric flask with a certain volume, performing constant volume by using distilled water, and measuring potassium in the leaching liquor by using a flame photometer.
S4, rapid determination of nutrient release rate, comprising the following substeps:
s41, preparation of standard series of concentrations:
s411, respectively weighing 10.0g of coated controlled release fertilizer and common fertilizer, and then crushing by a crusher;
s412, after being crushed, screening and filtering the crushed materials by a filtering device, and extracting crushed qualified materials for later use;
s42, weighing a certain amount of 5.00g of the crushed material of the coated controlled release fertilizer and the crushed material of the fertilizer, respectively putting the materials into two beakers of 100ml, and then adding a certain amount of distilled water into the two beakers for dissolving;
s43, repeatedly washing for 4 times, then drawing 0, 20, 40, 60, 80, 100 and 120ml volumetric flasks from the volumetric flasks, placing the volumetric flasks in an environment with the same other factors, changing the temperature, observing the influence of the temperature on the nutrient release rate, and measuring the conductivity value by using a conductivity meter to obtain the concentration value of the total nutrients of nitrogen, phosphorus and potassium in the standard series;
s44, measuring the conductivity value of the leaching solution, and obtaining the nutrient release rate from the standard curve;
and S5, summarizing data statistics, and obtaining a conclusion.
The temperature control values of the incubator in S22 are 24 ℃, 44 ℃ and 66 ℃, and the service time of the incubator is 40-57 min.
The standing time in S32 ranges from 6 to 13min, the heating temperature of the heating furnace in S32 ranges from 50 to 70 ℃, and the heating time of the heating furnace in S32 ranges from 35 to 55 min.
The amount of the pipette in S36 to suck up the leaching solution ranged from 2.0 to 6.0L.
The diameter of the mesh of the filtering device in the S412 is 10-15mm, and the particle size range of the qualified materials sieved in the S412 is 11-14 mm.
The temperature range for heating the volumetric flask in S43 is 0-120 ℃.
Example two:
s1, preparing raw materials, comprising the following substeps:
s11, preparing a certain amount of raw materials, a grinder and a weighing machine, grinding and grinding the raw materials of the controlled release fertilizer by the grinder, then screening, screening unqualified ground materials, and storing qualified materials for later use;
s12, paving a piece of paper on the weighing machine, and then pouring a certain amount of raw materials to weigh on the paper on the weighing machine;
s13, weighing a certain weight, stopping adding the raw materials, and pouring the raw materials on the paper into a placing vessel for later use;
s2, the standing leaching method comprises the following substeps:
s21, adding a certain amount of distilled water 200ml into the placing vessel in the S12, shaking for a certain time, shaking up the liquid in the placing vessel, and cooling to room temperature for constant volume operation;
s22, respectively placing the placing vessels in constant temperature boxes at different temperatures according to the time intervals of 1d, 4d, 8d, 12d, 18d, 17d and 27d..
S23, then according to the time interval: sampling for 1h, 4h, 6h, 8h, 10h, 12h, 14h, 18h and 24h, manually turning the vessel upside down for 3 times before sampling so that the concentration of liquid in the vessel is consistent, pouring a part of extracted liquid into a sample bottle, and then performing sealing operation while noting sampling time and number;
s24, adding 200ml of distilled water again after a period of time, sealing and continuing the leaching work of the next period of time;
s3, the nutrient content determination method comprises the following substeps:
s31, sucking a certain amount of 6.0L of the leaching liquor by a pipette, then placing the leaching liquor into a digestion tube, adding 0.7g of Cr powder into the digestion tube, then adding 6.5ml of concentrated hydrochloric acid, and then shaking;
s32, after shaking for a period of time, standing for a period of time, clamping the digestion tube by a clamping tool, and placing the digestion tube on a heating furnace by holding the clamping tool to perform reciprocating heating so as to heat the digestion tube uniformly;
s33, when boiling occurs after heating for a period of time, stopping heating, cooling for a period of time, and adding 5.0ml of concentrated sulfuric acid after cooling for a period of time;
s34, placing the solution in a fume hood for ventilation, observing the color of the upper solution after a period of time, and moving the solution if the color of the upper solution is clear;
s35, placing the solution on a distillation device for distillation, absorbing ammonia by using 2% boric acid, and then measuring the content of ammonia;
and S36, sucking a certain amount of the leaching liquor by using a pipette, placing the leaching liquor into a volumetric flask with a certain volume, performing constant volume by using distilled water, and measuring potassium in the leaching liquor by using a flame photometer.
S4, rapid determination of nutrient release rate, comprising the following substeps:
s41, preparation of standard series of concentrations:
s411, respectively weighing 10.0g of coated controlled release fertilizer and common fertilizer, and then crushing by a crusher;
s412, after being crushed, screening and filtering the crushed materials by a filtering device, and extracting crushed qualified materials for later use;
s42, weighing a certain amount of 5.00g of the crushed material of the coated controlled release fertilizer and the crushed material of the fertilizer, respectively putting the materials into two beakers of 100ml, and then adding a certain amount of distilled water into the two beakers for dissolving;
s43, repeatedly washing for 4-7 times, then drawing 0, 20, 40, 60, 80, 100 and 120ml volumetric flasks from the flasks, placing the volumetric flasks in an environment with the same other factors, changing the temperature, observing the influence of the temperature on the nutrient release rate, and measuring the concentration values of the total nutrients of nitrogen, phosphorus and potassium in the conductivity meter and the standard series by using a conductivity meter;
s44, measuring the conductivity value of the leaching solution, and obtaining the nutrient release rate from the standard curve;
and S5, summarizing data statistics, and obtaining a conclusion.
The temperature control values of the incubator in S22 are 24 ℃, 44 ℃ and 66 ℃, and the service time of the incubator is 40-57 min.
The standing time in S32 ranges from 6 to 13min, the heating temperature of the heating furnace in S32 ranges from 50 to 70 ℃, and the heating time of the heating furnace in S32 ranges from 35 to 55 min.
The amount of the pipette in S36 to suck up the leaching solution ranged from 2.0 to 6.0L.
The diameter of the mesh of the filtering device in the S412 is 10-15mm, and the particle size range of the qualified materials sieved in the S412 is 11-14 mm.
The heating temperature range of the volumetric flask in S43 is 0-120 DEG C
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. A checking and processing technology for the production of the controlled release fertilizer special for pineapples is characterized in that: the inspection processing technology comprises the following steps:
s1, preparing raw materials, comprising the following substeps:
s11, preparing a certain amount of raw materials, a grinder and a weighing machine, grinding and grinding the raw materials of the controlled release fertilizer by the grinder, then screening, screening unqualified ground materials, and storing qualified materials for later use;
s12, paving a piece of paper on the weighing machine, and then pouring a certain amount of raw materials to weigh on the paper on the weighing machine;
s13, weighing a certain weight, stopping adding the raw materials, and pouring the raw materials on the paper into a placing vessel for later use;
s2, the standing leaching method comprises the following substeps:
s21, adding a certain amount of distilled water 200ml into the placing vessel in the S12, shaking for a certain time, shaking up the liquid in the placing vessel, and cooling to room temperature for constant volume operation;
s22, respectively placing the placing vessels in constant temperature boxes at different temperatures according to the time intervals of 1d, 4d, 8d, 12d, 18d, 17d and 27d..
S23, then according to the time interval: sampling for 1h, 4h, 6h, 8h, 10h, 12h, 14h, 18h and 24h, manually turning the vessel upside down for 3 times before sampling so that the concentration of liquid in the vessel is consistent, pouring a part of extracted liquid into a sample bottle, and then performing sealing operation while noting sampling time and number;
s24, adding 200ml of distilled water again after a period of time, sealing and continuing the leaching work of the next period of time;
s3, the nutrient content determination method comprises the following substeps:
s31, sucking a certain amount of 2.0-6.0L of the leaching liquor by a pipette, then putting the leaching liquor into a digestion tube, adding 0.2-0.7g of Cr powder into the digestion tube, then adding 4.5-6.5ml of concentrated hydrochloric acid, and then shaking;
s32, after shaking for a period of time, standing for a period of time, clamping the digestion tube by a clamping tool, and placing the digestion tube on a heating furnace by holding the clamping tool to perform reciprocating heating so as to heat the digestion tube uniformly;
s33, when boiling occurs after heating for a period of time, stopping heating, cooling for a period of time, and adding 5.0ml of concentrated sulfuric acid after cooling for a period of time;
s34, placing the solution in a fume hood for ventilation, observing the color of the upper solution after a period of time, and moving the solution if the color of the upper solution is clear;
s35, placing the solution on a distillation device for distillation, absorbing ammonia by using 2% boric acid, and then measuring the content of ammonia;
and S36, sucking a certain amount of the leaching liquor by using a pipette, placing the leaching liquor into a volumetric flask with a certain volume, performing constant volume by using distilled water, and measuring potassium in the leaching liquor by using a flame photometer.
S4, rapid determination of nutrient release rate, comprising the following substeps:
s41, preparation of standard series of concentrations:
s411, respectively weighing 10.0g of coated controlled release fertilizer and common fertilizer, and then crushing by a crusher;
s412, after being crushed, screening and filtering the crushed materials by a filtering device, and extracting crushed qualified materials for later use;
s42, weighing a certain amount of 5.00g of the crushed material of the coated controlled release fertilizer and the crushed material of the fertilizer, respectively putting the materials into two beakers of 100ml, and then adding a certain amount of distilled water into the two beakers for dissolving;
s43, repeatedly washing for 4-7 times, then drawing 0, 20, 40, 60, 80, 100 and 120ml volumetric flasks from the flasks, placing the volumetric flasks in an environment with the same other factors, changing the temperature, observing the influence of the temperature on the nutrient release rate, and measuring the concentration values of the total nutrients of nitrogen, phosphorus and potassium in the conductivity meter and the standard series by using a conductivity meter;
s44, measuring the conductivity value of the leaching solution, and obtaining the nutrient release rate from the standard curve;
and S5, summarizing data statistics, and obtaining a conclusion.
2. The inspection and processing technology for the production of the controlled release fertilizer special for pineapples according to claim 1, characterized in that: the temperature regulation values of the constant temperature box in the S22 are 24 ℃, 44 ℃ and 66 ℃, and the service time of the constant temperature box is 40-57 min.
3. The inspection and processing technology for the production of the controlled release fertilizer special for pineapples according to claim 1, characterized in that: the standing time range in the S32 is 6-13min, the heating temperature range of the heating furnace in the S32 is 50-70 ℃, and the heating time of the heating furnace in the S32 is 35-55 min.
4. The inspection and processing technology for the production of the controlled release fertilizer special for pineapples according to claim 1, characterized in that: the amount of the pipette in S36 to suck up the leaching solution ranged from 2.0 to 6.0L.
5. The inspection and processing technology for the production of the controlled release fertilizer special for pineapples according to claim 1, characterized in that: the diameter of the mesh of the filtering device in the S412 is 10-15mm, and the particle size range of the qualified materials sieved in the S412 is 11-14 mm.
6. The inspection and processing technology for the production of the controlled release fertilizer special for pineapples according to claim 1, characterized in that: the temperature range of the heating of the volumetric flask in the S43 is 0-120 ℃.
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