KR100301698B1 - Ball type granular complex Fertilizer of micro nutrient - Google Patents

Abstract

PURPOSE: Provided are a spherical granular compound fertilizer containing trace urea, which can be more easily topdressed to soil directly and shows higher topdressing effect, and method for producing the same. CONSTITUTION: The fertilizer is produced by the steps of (i) mixing 0.1-1.0 wt.% of boric acid, 0.1-0.3 wt.% of copper sulfate, 0.2-0.3 wt.% of zinc sulfate, 0.3-0.4 wt.% of iron sulfate, and 0.001-0.1 wt.% of ammonium molybdate into graining water containing 7-8 wt.% of alga liquid and 6-7 wt.% of pure substance of bean curd; (ii) adding 0.1-0.2 wt.% of ethylene diamine tetraacetate to the mixture, so as to obtain dissolved graining water; (iii) introducing 30-40 wt.% of quenched slag into rotating granulator; (iv) firstly spraying the dissolved graining water while stirring the quenched slag; (v) introducing simultaneously 40-50 wt.% of zeolite powder and dissolved graining water into the quenched slag; and (vi) removing the quenched slag and drying the slag at 90-100 deg.C.

Description

Spherical granular microelement complex fertilizer and manufacturing method thereof {Ball type granular complex Fertilizer of micro nutrient}

The present invention randomly selects the size of the particles of the quench slag in proportion to the size of the spherical fertilizer particles to be produced by using the granular quench slag generated as a by-product of the steel industry, and using the powder as a granulation nucleus Spherical granular fertilizer is granulated by spraying the granulated water with the addition, and spherical granular microelement fertilizer is prepared by dissolving the trace elements in the granulated water in advance and spraying them to make the fertilizer particles contain the components evenly. It is about.

Trace elements are indispensable for the healthy growth of plants, but the required amount is very small, and in the case of excess, it is characterized by disorder. In our fertilizer management law, only six kinds of boron, zinc, manganese, molybdenum, copper and iron are registered in the fertilizer process standard as trace elements.These ingredients are effective as an expression agent for promoting plant growth, and they are excellent in microurea complex fertilizer. It is prescribed as an ingredient. In particular, copper, manganese, boron, zinc, iron, etc. are the components that are likely to cause deficiency in crops under alkaline soil conditions. The quench slag contains 0.5 to 5.0 P. P. M. of molybdenum, which is effective in itself when used for molybdenum-deficient soils.

If microurea complex fertilizers are used in crops, there are deficiency symptoms and crop damages, and then there is a fertilization method that 'prescribes' the necessary ingredients and their requirements by clearly examining and diagnosing them. Fertilizers containing various trace elements are used to fertilize whole layers or surface layers, which is called 'premium fertilizer'. This fertilization method is particularly effective when there is a risk of plant nutrient depletion. As a trace element, the latter is a much more preventive and potent fertilization method, considering that the trace element is characterized by showing a large damage symptom even if the trace amount is insufficient. The so-called foliar fertilization method, which supplies nutrients through the leaves of plants, diminishes or recovers symptoms by diluting and spraying an aqueous solution after the nutrient deficiency symptoms have already appeared or found. It is a fertilization method that is effective when it is unable to absorb nutrients from the root of a plant, that is, when used on a plant that is weakened by a pest or weakened after transplantation. Most of the trace urea fertilizers distributed in Korea are used in this fertilization method, and are commercialized in the form of an aqueous solution or water-soluble powder and dissolved in water and then diluted several hundred times. Foliar fertilization has the effect of temporarily restoring the nutrient deficiency of plants, but it is necessary to examine the symptoms of each plant every time. The disadvantage is that it can't be. In addition, since it is possible to fertilize the plant after growing to some extent, it is difficult to work on the field, and after raining, the rainy season will be washed away from the foliar, and if the dilution concentration is incorrectly adjusted, it will cause concentration damage to the plant. Wasteful factor. And it is difficult to carry out where the water supply is insufficient. In particular, farmers often suffer unexpected damage due to the proper dilution of the aqueous solution, the application of the appropriate amount per unit area, and the change of other environmental conditions-for example, damage to crops in excess of sunshine. Unlike the foliar fertilization method among the four complex fertilizers, the soil irrigation fertilization method dissolves fertilizer components in water and temporarily irradiates a large amount of water to the soil. Nutrients, or salts, accumulate in the soil, causing so-called salt accumulation problems and causing soil environmental pollution. Sandy, sloping, and fruit-bearing soils are wasted before they can absorb nutrients from the roots of plants due to leaching and loss.

Another problem of foliar fertilization is effective on broadleaf plants, ie plants with large leaf areas, but it is difficult to expect effects on narrow leafy vegetables and coniferous plants such as conifers. In particular, when the aqueous solution is stored for a long time, dissociated cations and anions in salts ionize to form impurities. For example, magnesium, iron, aluminum, etc. combine with and settle the anionic components, which causes plant weakness and fertilization, making it difficult to continuously work by blocking the nozzle hole of the sprayer. In order to make up for this drawback, chelates such as ethylenediamine tetraacetate (EDT A) are generally added. Korean Patent Publication No. 74-393 discloses essential elements such as lime, magnesium, sulfur and copper. Disclosed is a method for preparing a transparent liquid fertilizer that does not produce precipitates by dissolving water in an appropriate ratio in a powder containing ethylene diamine tetraacetate in a mixture of trace elements such as zinc, manganese, boron, and molybdenum. Foliar application of ingredients such as Fe-chelate may cause harm to plants. Due to various problems and disadvantages, foliar fertilization among the fertilizer fertilization method has limitations that can only be used as symptomatic therapy as a temporary emergency in case of lack of fertilization, fertilization for supplementation or deficiency of nutrients. The supply of trace urea components to crops is commercialized in Korea, and the supply of trace urea components to crops is almost the same as the four types of compound fertilizers classified into (1) foliar fertilization, (2) cultivation of fertilization, and (3) fertilization. ought. Trace element fertilizer is a single fertilizer containing only one component of boron or zinc, and the single fertilizer has a lot of labor and is difficult to use properly such as adjusting fertilizer. It is only used as a raw material for seed compound fertilizers. The trace urea complex fertilizer is mandated by the Fertilizer Control Act to contain at least two of the six constituents such as trace elements, ie, boron, copper, iron, manganese, molybdenum, and zinc. Similarly, it is a powder product or is dissolved in a solution such as water in advance and then supplied in a liquid form. As mentioned above, effective precautions to prevent the development of deficiencies of trace elements during the growing season of the crop are possible by applying the appropriate amount of fertilizer to the soil before planting the crop. Inexpensive, easy and proper fertilizer application to the soil.

The disadvantages of powdered fertilizers such as borax are widely known, as well as the heterogeneous mixing of the components, the imbalance of fertilization in the soil, the inconvenience of fertilizing, and the scattering of the wind. There is a problem that causes weakness.

Microurea complex fertilizers are classified into (1) waterborne microurea complex fertilizers (2) fired microurea complex fertilizers (3) liquid microurea complex fertilizers (4) trace element mixed fertilizers. . Among them, (3) and (4) splenomegaly are used as foliar application cost, and are dissolved in water before fertilization, diluted to about 500 to 1,000 times, and then used as a cumbersome fertilization method for spraying or irrigation. The development of granular trace element fertilizer, which can be fertilized directly on the soil and contains a trace element component, is technically easy to manufacture and economically inexpensive due to various disadvantages such as the limited use method and inconvenience of work and irrationality Is urgently needed for the production of high-quality agricultural products, viable agriculture, environmental agriculture, and internationally competitive agriculture. However, due to the technical difficulties of the manufacturing method and economic problems, the fertilizer cannot be developed and supplied, and foreign imports dominate the market. In foreign countries such as Japan and the United States, there is a calcined trace element compound fertilizer prepared by mixing borax, manganese ore, magnesium hydroxide, talc, and the like at a predetermined ratio, followed by heating and firing. Also, a solubility trace element called FTE (Fritted Trace Element). There is a compound fertilizer. In Japan, the standard is settled around 1964, and it mixes raw materials such as manganese ore, borax, feldspar, sodium carbonate, serpentine, fluorite, iron ore well, melts it about 1,300 degrees Celsius, and then rapidly cools and grinds it. It is characterized by having a glassy structure as a fertilizer. However, the above-mentioned products have disadvantages of low practicality due to manufacturing technical problems such as inefficiency due to excessive 'energy use process', low solubilization of components, and heterogeneity of quality. In addition, since the components are soluble to oil-soluble, not water-soluble, even when fertilized with plant nutrition deficiency, it is difficult to quickly absorb and recover plants. Because of these shortcomings, the production of homogenous species in foreign countries remains at a minimal level. It is economically inexpensive and is applied directly to the soil by whole-layer fertilization or surface fertilization, like granular tri-nitrogen (nitrogen, phosphate, and garlic) fertilizer, not foliar fertilization or irrigation fertilization. The manufacture of granular microelement fertilizers that can be produced is not produced and supplied due to the following technical difficulties.

In general, the compound fertilizer refers to the triurea complex fertilizer, the production method of the three-element complex fertilizer by setting the amount of each component, such as nitrogen (N), phosphoric acid (P), kali (K) in advance (N, P, K total amount; 20% or more) Each raw material is weighed and mixed by type, and then a component control agent or granulating enhancer is added and granulated water is added to the pan type granulation method or drum type. Type) Assemble-dry by assembly method, sort out with vibrating body, and produce products within certain particles (usually 2-5mm particles). Small particles (Under Size) and large particles (Over Size) outside the particle size range are pulverized and the powder is mixed with other raw materials and used again. The possibility of crushing and reusing out-of-standards in a continuous production process is very important both in terms of production control and economics. Such a manufacturing method is possible in the compound fertilizer production process because the total amount of the three elements is at least 20% or more, and is 40 to 50% or more. In addition, the physical properties of the raw materials are similar to each other so that the mixing of the raw materials can be made relatively uniform. That's possible. However, this is not the case for microurea complex fertilizers. That is, because the content of the components specified in the fertilizer process standard of the fertilizer management method is extremely small [the process standard minimum amount (% by weight); More than 0.05% of boron, more than 0.05% of copper, more than 0.1% of iron, more than 0.1% of manganese, more than 0.0005% of molybdenum, more than 0.05% of zinc] In addition to the raw materials of trace elements, a lot of ingredient regulators (extenders; fillers) It must be added, which makes it difficult to uniformly mix each raw material. It is virtually impossible to have a uniform component (%) per particle of trace urea fertilizers by mechanical equipment or production methods such as triureum fertilizers. Because it is a very small component, it is because the particles are formed only by the component regulator or the component ratio between the particles is different. Therefore, the manufacturing method using only a certain particle range, such as the production process of tri-urea complex fertilizer, other than the pulverization-mixing-injection-reuse is not adopted due to the nonuniformity of the components of the microelement compound fertilizer. Another problem is that the amount of ingredient controlling agent occupies most of the raw material, so the granulation rate is very irregular and the shape is not uniform. Since the assembly of complex fertilizer is raw material such as ammonium phosphate, sulfuric acid sulfate, yuan, and salt chloride, 'acid-base reactant', when the coarse water is added, these salts partially go through 'dissociation-recombination reaction' and then again form different salts ( Iv), abdominal infection, or solid solution The effect of granulation is shown by repeating the process of forming), but the trace element compound fertilizer has different conditions and mechanism of raw materials and ingredients.

Due to these problems, quality non-uniformity, difficulty in quality control, economic problems, and low yield of production, granular microelement fertilizer is not yet produced and supplied in Korea.

The purpose and characteristics of the present invention is to prepare a trace element composite fertilizer, while maintaining the uniform quality between particles and solving the technical and economical problems, it is easier to directly fertilize the soil and a small amount of granules that can exhibit a higher fertilizing effect Development of manufacturing technology and economic feasibility of urea complex fertilizer. In the present invention, the above problems are solved, the content distribution ratio between the particles is homogeneous, but also eliminates the occurrence of extraneous goods outside a certain particle range, no reprocessing process is required, and the size of the particles can be deliberately fixed, and fine grains (립)粒) It is an economical production method that can easily manufacture products with high yield, and it is a process of mixing various fertilizer materials which are effective and adding trace elements to it to manufacture multi-component fertilizers. It is to prepare urea complex fertilizer.

In general, granulated water plays a very important role in assembling the powder into a spherical shape. Liquid bridge phenomenon occurs by acting as adsorption moisture between particles and particles of fine powder, resulting in strong cohesion and adhesion. The unique role and application technique of granulated water in the present invention, in addition to its function as granulated water, are various kinds of traces It is a technical process to contain the urea component more effectively and equally into the fertilizer particles by spraying the granulated water to the quench slag particles and the powder having a fertilizer value, so as to contain the urea component more than the standard value specified in the fertilizer process standards. The significance of the present invention is to establish an economical and technical method for producing a microurea complex fertilizer in a granular form with a uniform microurea component necessary for growing a crop. Most fertilizers, as well as compound fertilizers, are made in the form of spherical granules, which is due to the ease of fertilization, uniformity of fertilization, ease of packaging process and logistics, maintenance of proper decomposition rate of fertilizer particles in soil, and prevention of freezing during storage. I) for the purpose. The mechanism of fertilizer particle assembly is the capillary adsorption force between the powder and the powder, and when the chemical reaction is involved, the assembly process is more effective. Cohesion and adhesion between particles are caused by Van Der Waals force, and the fine particles generate more cohesive force than their own weight. When adsorbed moisture is generated, liquid crosslinking force, or liquid bridge phenomenon, occurs. This force sometimes appears to be a stronger force than the van der Waals forces in particle assembly. In this case, the use of a viscous material produces very strong adhesion between particles, and the finer the powder, the higher the inverse viscosity. However, if only powder is mixed, the adhesion is good, but the centripetal force is lowered in the rotary assembly process, and the particle size distribution is used in the inside of a generally used type assembly machine or rotary type drum assembly machine. Becomes wider and particle shape becomes uneven. As a result, production yield is low, particle shape is uneven, and assembly time is very long. This problem can be easily solved by using the assembly nuclei and exploiting their physical functions and properties. Of course, the triurea complex fertilizer containing a high concentration of components can not be used because there is no room for the input of granulated nuclei, since a large amount of raw materials with active ingredients must be used.

Figure 1 (a) is a cross-sectional view of particles of a quench slag.

Figure 1 (b) is a cross-sectional view of a spherical granular trace element composite fertilizer prepared according to the production method of the present invention using a quenching slag.

Figure 2 (a) is an enlarged photomicrograph of a quench slag.

Figure 2 (b) is an enlarged photomicrograph of a spherical granular trace element composite fertilizer prepared according to the production method of the present invention.

In the present invention, by utilizing the basic principle of granulation of granules in advance, using a granulated nuclear material (核 物質)-(aka, seed seed;) of a certain dimension and mixing the powder known to have excellent fertilizer effect on the seed material, By spraying a liquid in which the trace urea component is dissolved while adding it, that is, coarse water, the entire amount of the injected material can be produced in a short time with a trace element compound fertilizer having the same particle range and uniform quality.

That is, 30 to 70 parts by weight of granular quench slag 30 to 70 parts by weight of granular quenching slag, dolomite powder, limestone powder, zeolite powder, peat powder, carbon powder, etc. The rotating granulator is sprayed using 5 to 20 parts by weight based on the total amount of the quench slag and powder by adding and mixing in the granulator and dissolving and containing 2 to 6 kinds of trace elements. It is prepared by rotating by P. M., and then drying at about 90 to 100 degrees Celsius. In the present invention applying the physical and chemical principles of assembly, the quench slag is sorted and classified by particles to utilize as an assembly nucleus.

Quench slag is produced as a by-product in steelmaking or steel production, and refers to slag that has been rapidly cooled in a hot melt state of 1500 degrees Celsius or higher and becomes a grain state. Most particle size distributions range from 0.5 mm to 3.5 mm. The content of ingredients is 40 to 45% of calcium (CaO), 3 to 6% of magnesium (MgO), 30 to 35% of soluble silicic acid (S-SiO ₂ ), and the pH is about 10. The chemical composition and structure is not more than 95%. It is a solid solution of Akermanite (2CaO.MgO.2SiO ₂ ) and Gelenite (2Cao.Al ₂ O ₃ .SiO ₂ ). Since it has many fertilizers and is an alkaline substance, quenching slag is widely used as a source of alkali component of siliceous fertilizer and acidic soil as soil improving agent, and has a characteristic of slowly degrading in soil. General rock particles and royal sand particles have functions as granulation nuclei, but are not easily decomposed in soil, which may damage soil physical properties. It cannot be used because it has a weakening force and is easily separated from each other.

In the quenching slag, the quenching slag is glass-nitrided due to the special formation conditions, that is, the high temperature melting and rapid cooling processes, and the pointed glassy needles are formed on the surface of the particles. Attachment-bonding with the powder rotating together is very easy. In other words, the quenching slag acts as an assembly nucleus with a high rotational centripetal force according to the principle of assembly, and easily adheres powder to the projections and projection spaces of the needles, and the 'adherence-bonding' process with the powder is repeatedly repeated on the particle surface. do. Therefore, the entire amount of the assembly can be easily made into spherical particles of a certain size. At the same time, it is possible to assemble in a short time, and even after assembly is a great advantage not to be separated from each other between the powder and the assembly nucleus. The type of powder to be used is an organic or inorganic powder that can be used as long as it is allowed as a fertilizer raw material or additive in the fertilizer control method, and the powder exhibiting capillary adsorption power is 0.595 or more. Finer than mm can be used. For example, zeolite, bentonite, diatomaceous earth, wollastonite, gypsum, dolomite, and plant activator carbon, which are effective as soil improving agents Humus substances such as peat or peat with powder, organic matter, slag powder, siliceous powder, silica powder, limestone, quicklime, lime, shell貝殼) powder, crushed stone powder, vermiculite as a top raw material, fly ash, paper residue as a by-product of paper industry, pearlite, far-infrared material macsumite, ganban stone powder, lignin ) Powder, rice bran powder, skim steel powder, coffee foil powder, amino acid fermented by-product powder, vegetable ash, wet oxidized manure residue powder, vegetable oil powder, thickening leather powder, beer foil Materials such as powder, fishmeal (including fishmeal) and bone meal It is a typical example belonging to these, These can be used individually or in mixture of 2 or more types. The amount of powder to be used may be determined by the amount necessary to fill the space between the uneven portions of the particle surface around the quench slag particles, which are granulated nuclei, and to form completely spherical particles.

The concentration (weight%) of the trace elements to be contained in the coarse water depends on the required amount of coarse water, and the required amount of coarse water depends on the mixing ratio (weight%) of the quench slag particle and powder, the type of powder, and the particle size distribution. There is a difference between each, so if the requirement is large, the concentration is relatively low. If the requirement is small, the concentration is relatively high. The amount of granulated water used is in the range of 3 to 20% by weight based on the total weight of the material to be assembled (assembly nucleus + powder), and the total amount of the required amount (weight%) of the necessary and sufficient components as the microelement composite fertilizer to be contained by the granulated particles What is necessary is just to melt | dissolve in water. For example, the trace amount of the component as a trace element compound fertilizer is boron (B ₂ O ₃ ) 0.05%, copper (Cu) 0.05%, iron (Fe) 0.1%, manganese (MnO) 0.1%, molybdenum (Mo) 0.0005 %, Zinc (Zn) 0.05% each product (the above value is the minimum guaranteed ingredient content in the fertilizer process standard of the Fertilizer Control Act; weight%), the total amount of quenching slag and powder is 100g, If the required amount of granulated water required for granulation is 5%, the amount of components to be contained in the granulated water-5g is calculated by multiplying the content (weight%) of each component by 100g, and the concentration of the components of the granulated water itself is calculated in this case. The concentration is at least 20 times higher than the above value. When the trace element component is dissolved in the coarse water at a high concentration of 5% or more, it is not completely dissolved or homogeneous, but it is easily dissolved by the addition of mineral acid. In this case, the addition of ethylenediamine tetraacetate in order to prevent the reaction between components prevents the reaction between the components due to the formation of the salt (Chelate) can maintain the fertilizer effect well. Phosphoric acid or sulfuric acid added to the coarse water causes acid-alkali reaction with calcium and magnesium in the quench slag. This has a very large effect on assembly.

CaO + H ₃ PO ₄ + H ₂ O = CaHPO ₄ . 2H ₂ O

MgO + H ₃ PO ₄ + 2H ₂ O = MgHPO ₄ . 3H ₂ O

CaO + H ₂ SO ₄ = CaSO ₄ + H ₂ O

MgO + H ₂ SO ₄ = MgSO ₄ + H ₂ O

Kinds of calcium or magnesium in the powder can produce phosphate or sulphate as above reactions, and this chemical reaction helps to carry out efficient assembly process. When sprinkling the quench slag and dolomite powder into the rotary type assembly, which rotates at the proper speed, the sprinkled granules can be obtained in a short time by spraying evenly prepared granule water, that is, trace element dissolving solution with a sprayer. As a raw material for each trace element component to be dissolved in granulated water, the following may be used. Boron (B ₂ 0 ₃₎ component is boric acid (H ₃ BO ₃₎ to dissolve the can assembly by use of copper (Cu) component is copper sulfate (CuSO _4. 5H ₂ O) a, zinc (Zn) component is zinc sulfate _{(ZnSO 4. 7 H 2 0} ) or a zinc hydroxide [Zn (OH) _2], iron (Fe) is ferrous sulfate _{[Fe 2 (SO 4) 3} , or FeSO _4. 7 H ₂ O or iron phosphate (FePO ₄ )], and the molybdenum (Mo) component is ammonium molybdate salt [(NH ₄ ) ₆ Mo ₇ O ₂₄ . The 4H ₂ 0], manganese oxide (MnO) component uses a manganese sulfate _{(MnSO 4. 4H 2 O)} .

If you want to proceed the assembly process more quickly, add mineral acid such as phosphoric acid, sulfuric acid, etc.The trace element material dissolves quickly and moreover, as well as the side effect that reaction occurs on the surface of the quenching slag, the powder is easily It is attached to the surface of quench slag particles, and it has the effect of shortening the assembly time and improving the assembly strength. Of course, there is an exothermic phenomenon because of the acid-alkali reaction, but rather helps the progress of the process. The reason is that in the initial stage of the assembly process, the cohesion-adhesive force increases as the amount of granulated water gradually increases between the particles and the particles, but once formed into a spherical form, excess moisture is rather inhibited in the assembly process. Exothermic phenomena include partial excess moisture reduction effect, water equalization effect between particles and particles, and improvement of assembly strength, and more importantly, evenly distributes trace element components among particles, and further results in component penetration effect inside particles. . Most of the use of industrial water in the assembly process of the Korean compound fertilizer company, and the addition of small amounts of auxiliary substances such as seasoning fermentation waste liquid. However, the characteristics of the present invention is to maximize the fertilizer effect by synergistic interaction between materials when the microelement compound fertilizer is fertilized in the soil by using a liquid material having excellent fertilizer effect and soil improvement effect as granulated water. When the ingredients (nutrition elements) necessary for plant growth are roughly classified, they are divided into a large amount element and a trace element, which are literally a very small amount, and have a significant effect on plant growth. If insufficient, severe growth disorders appear, which is a difficult point in the application of trace elements. This is similar to the function of vitamins in the human body, and even if it is somewhat insufficient, the immediate damage does not occur, the symptoms appear slowly and other elements (eg N, P, K, Mg, Ca, etc.) and other peculiarities. Therefore, the trace elements in plants are considered to be the most important of the balanced absorption.

Wood Vinegar (Wood vinegar) is a solution of carbonized or dried carbonized wood, also known as woodjeong (木 精), which has a bactericidal effect in the soil and acts as a repellent against pests. Of course, the wood vinegar is a negative (-) ion, so most of the fertilizers with a positive (+) and also plays a role in maintaining a chemically stable state in the soil. In addition, various effects such as plant rooting and development, growth of useful microorganisms in soil, and sugar and coloring enhancement of crops are expressed in the process of plant growth. It is easy to dissolve fertilizer, improves nutrient absorption rate of plants, and has a lasting effect on growth due to electrodeposition effect (wood component) and tissue penetration.

Chitosan (PolySaccharide) is a natural polysaccharide present in crustaceans such as crabs and shrimps, and has a structure similar to cellulose. It plays an active role in promoting germination, growth, and differentiation of plants, and is very effective in improving disease resistance, soil improvement, and microbial growth. Excellent viscosity and cohesion even under 1% solution of acetic acid.

C. S. L (Corn Steep Liquor) is an extract produced during the production of Con Starch and contains a large amount of amino acids, sugars and vitamins that are involved in nutrient growth and reproductive growth of plants. In addition to the above three kinds of materials, the granulated water used in the present invention is fermented vinegar, fish and animal by-products of fermentation extract, seaweed extract, gelatin decomposition solution, molasses solution, humic acid, nitrofuminic acid, sodium silicate solution, Alcohol fermentation waste liquid, caprolactam by-products such as milk ophthalmic solution, polyvinyl alcohol (PVA) solution, and tofu products containing a large amount of various amino acids and nucleic acids.

The exemplified materials not only have an effective role as coarse water for the efficient progression of fertilizer particle assembly, but also have the functions of plant nutrient or growth promotion, soil improvement, etc., in particular, synergistic with trace elements, It has various advantages and features such as absorption and utilization promotion and soil revitalization.

The raw material of each component is dissolved in granulated water in accordance with the active ingredient content standards of the microurea complex fertilizer specified in the fertilizer process specification of the fertilizer management method in the granulated water. The kinds of the granulated water are not representative because the above are representative examples and materials other than these.

When explaining the content of the present invention in more detail through specific embodiments as follows.

These examples are merely illustrative of some of the present invention, and the scope of the present invention is not limited by these embodiments.

Example 1

This example illustrates the technical characteristics of the recipe, complete the fermentation of natural wood vinegar 530g, it was added to join approximation (粗隣酸液) 95g were mixed, and then boric acid (H3BO3) 5.8g, copper sulfate (CuSO _4. 5H ₂ O) 13.5g, zinc sulfate _{(ZnSO 4. 7H 2 O)} 15.0g, iron sulfate (FeSO _4. 7H2O) 19.3g, ammonium molybdate _{[(NH 4) 6 Mo 7} O 24. 4H ₂ O] 0.061 g and manganese sulfate (MnSO ₄ H ₂ O) 21.3 g are added to the mixture, and then 7.0 g of ethylenediamine tetraacetate is added and dissolved. After dissolving, 3,500g of quenching slag with particle size of 1.0 to 2.0mm is added to a rotary type assembly machine with a diameter of 900mm, a frame height of the pan of 190mm, and a fan tilt of 30 degrees. While rotating at 80 to 90 RPM, 95 g of coarse water is first sprayed. After the liquid is evenly deposited on the surface of the quench slag, 3,000 g of dolomite powder is passed through a 0.595 mm sieve and sprayed with the whole granulated water.

At this time, it is effective to adjust the spray amount of the granulated water and the input amount of dolomite powder to be similarly consumed. The input of powder raw material to the quench slag is added or subtracted according to the particle formation rate. The batching method is not a big problem in the formation of particles even if collectively, but the granular yield is somewhat lower depending on the type of raw material, so the gradual feeding is more effective. The assembly is completed after 10 minutes and 50 seconds of work. After the whole product was taken out to the granulator, and dried in a dryer of 90 to 100 degrees Celsius, 6,128 g of a spherical particulate trace element compound fertilizer having a particle size of 1.5 to 2.5 mm was obtained.

The chemical composition analysis results of this product based on the fertilizer process analysis method of the fertilizer management method are shown in Table 5 below, and there is only a negligible difference between the design value and the analysis value of the component content. It was confirmed that trace elements were distributed.

Example 2

To 580 g of seaweed solution extracted from seaweed was added 420 g of tofu purge, and then mixed with small amounts of 47 g of 98% concentrated sulfuric acid, followed by mixing. 8.1 g of boric acid (H ₃ BO ₃ ), the same type of medicine as in Example 1 , 18.8 g of copper sulfate, 21.1 g of zinc sulfate, 27.0 g of iron sulfate, and 0.09 g of ammonium molybdate are added to the mixed solution, and then 9.5 g of ethylenediamine tetraacetate is added and dissolved. After melting, 3,000g of quenching slag with a particle size of 0.5 to 1.0mm was added to the same granulator as in Example 1, and 3,500g of calcined lime powder passed through a 0.595 mm sieve was added in the same manner as in Example 1. At the same time, spray the whole quantity of granulated water

The operation is the same as in Example 1 below. The assembly is completed after 11 minutes 30 seconds of work.

After removing the whole product from the granulator, and dried in a dryer of 90 to 100 degrees Celsius, 6,115 g of a spherical particulate trace element compound fertilizer with a particle size of 1.0 to 1.5 mm was obtained.

The chemical composition analysis results of this product based on the fertilizer process analysis method of the fertilizer management method are shown in the following Table 6. The trace element between the design value and the analysis value of the component content is comparable to 'Example 1', It was confirmed that the components were uniformly distributed.

Example 3

960 g of C.S.L (CS L) solution, 6.7 g of boric acid, 15.6 g of copper sulfate, 17.4 g of zinc sulfate, 0.076 g of ammonium molybdate, 22.5 g of manganese sulfate, and ethylenediamine tetraacetate Add 8.2 g and dissolve. After melting, 3,000g of quenching slag with particle size 2.0 to 3.0mm was added to the same granulator as in 'Example 1', and 3,500g of crushed stone powder passed through 0.595mm sieve was put in the same manner as in 'Example 1'. At the same time, spray the total amount of coarse water. The operation is the same as in Example 1 below. The assembly is completed after 12 minutes and 40 seconds of work. After removing the whole product from the granulator, and dried in a dryer of 90 to 100 degrees Celsius, 6,225 g of a spherical particulate trace element compound fertilizer with a particle size of 2.5 to 3.5 mm was obtained.

The chemical composition analysis results of this product based on the fertilizer process analysis method of the fertilizer management method are shown in Table 7 below, and the deviation range between the design value and the analysis value of the component content is equivalent to 'Example 1 and 2'. It was confirmed that the trace element components were uniformly distributed.

Example 4

Add 95 g of chitosan powder to 95 ml of fermented vinegar and dissolve completely. After mixing 810 g of plant green juice fermentation broth sufficiently, 6.4 g of boric acid, 14.8 g of copper sulfate, 16.5 g of zinc sulfate, 19.3 g of iron sulfate, 0.061 g of ammonium molybdate, and 21.3 g of manganese sulfate were used. To this mixture, 7.2 g of ethylenediamine tetraacetate is added and dissolved. After dissolving, 3,000g of geolite powder passed through 0.595mm sieve was added to 3,500g of quenching slag with 1.5 ~ 2.5mm particle size in the same granulator as in 'Example 1'. While spraying, spray the total amount of granulated water at the same time. The operation is the same as in Example 1 below. The assembly is completed after 14 minutes and 30 seconds of work. After the whole product was taken out to the granulator, and dried in a dryer of 90 to 100 degrees Celsius, 6,059 g of a spherical particulate trace element compound fertilizer having a particle size of 2.0 to 3.0 mm was obtained. The chemical composition analysis results of this product based on the fertilizer process analysis method of the fertilizer management method are shown in Table 8 below, and the deviation range between the design value and the analysis value of the component content is equivalent to that of 'Example 1, 2 and 3'. It was confirmed that trace elements were uniformly distributed in the particles.

Example 5

410 g of gelatin decomposition solution is mixed with 320 g of molasses and 550 g of wood vinegar at about 40 to 45 degrees Celsius. Here, 6.9 g of boric acid, 18.0 g of zinc sulfate, 19.3 g of iron sulfate, 0.072 g of ammonium molybdate, and 23.4 g of manganese sulfate were added to the mixture, followed by 8.0 g of ethylenediamine tetraacetate. Is added and dissolved. After dissolving, 1,750 g of dry gypsum powder passed through a 0.595 mm sieve in the same granulator as in Example 1 was added 3,000 g of a quench slag with a particle size of 2.5 to 3.5 mm and then operated in the same manner as in Example 1. 1,750 g of a mixture of slag siliceous fertilizer powder and a mixed powder were sprayed at the same time. The same operation as in the first embodiment will be given below. The assembly is completed after 9 minutes 30 seconds of work. The whole product was removed from the granulator, dried in a dryer at 90 to 100 degrees Celsius, and 6,015 g of spherical particulate trace element compound fertilizer with a particle size of 3.0 to 4.0 mm was obtained. The chemical composition analysis results of this product based on the fertilizer process analysis method of the fertilizer control method are shown in Table 9 below. The variation range of the components between the design value and the analysis value of the component content is equivalent to '4 in Example 1 It was confirmed that the trace element components were uniformly distributed.

Comparative Example 1

145 g of co-phosphate solution is added to 850 g of fully aged natural wood vinegar and mixed. The same type of medicine as in Example 1 is weighed into the mixed solution, and then 7.0 g of ethylenediamine tetraacetate is added and dissolved. . After melting, the same granules as in Example 1 were sprayed with 6,000 g of dolomite powder passed through a 0.595 mm sieve without any quenching slag as an assembling nucleus.

The reason why the number of granulated water was increased from 'Example 1' was because the amount of powder was increased instead of the quench slag. The operation is the same as in Example 1 below.

All processes were carried out in the same way, and the following results were obtained. It took 26 minutes and 25 seconds to complete the assembly, and after drying at the same temperature as in the example, 2,364 g of spherical particulate trace element composite fertilizer of 1.5 to 2.5 mm was obtained. (External standard; 1,835 g of small particles and unassembled powder of particle size less than 1.5 mm, 1,801 g of large particle of 2.5 mm or more in particle size). The chemical analysis results of this product based on the fertilizer process analysis method of the fertilizer management method showed unevenness (failure of fertilizer process standard), as shown in the following table 10. It was confirmed that the spray amount of was not evenly dispersed in the fertilizer particles (the distribution of trace elements was uneven).

Comparative Example 2

To 690 g of seaweed solution extracted from seaweed was added 540 g of tofu purge, and then 47 g of 98% concentrated sulfuric acid was added and mixed. The same kind of medicine as in Example 2 was weighed into the mixed solution, and then ethylenediamine 4 was added. 9.5 g of acetate are added and dissolved.

After dissolving, the same granulator as in Example 2 is sprayed with 6,000 g of calcined lime powder passed through a 0.595 mm sieve without putting any quenching steel, which is an assembling nucleus, at the same time and spraying the total amount of granulated water. Increasing the number of granulated water than 'Example 2' is due to the increase in the amount of powder.

The operation is the same as in Example 2 below. All processes were carried out in the same way, and the following results were obtained. The work time required to complete the assembly took 31 minutes and 45 seconds, and after drying at the same temperature as in the example, 1,823 g of a 1.0-1.5 mm spherical particulate trace element composite fertilizer was obtained. 2,069 g of small particles and unassembled powder, 2,108 g of large particles having a particle diameter of 1.5 mm or more).

The chemical composition analysis of this product based on the fertilizer process analysis method of the fertilizer management method showed non-uniformity (failure of fertilizer process standard) as shown in Table 11 below. This is because, for the same reason as 'Comparative Example 1', the size deviation of the granulated particles is severe, and for this reason, it was confirmed that the spray amount of the granulated water was not evenly dispersed in the fertilizer particles (the distribution of trace elements is uneven).

As shown in the results of the 'Examples' and 'Comparative Examples', assembling the microurea composite fertilizer using the quench slag particles as the granulation nuclei can not only shorten the assembly time significantly but also provide a very uniform amount of particles between the particles. It is easy to manufacture urea complex fertilizer, and the bigger advantage is high product yield and economical and technical ease of fine fertilizer assembly. The finer the fertilizer, the finer the fertilizer is, the more uniform fertilization is possible in the soil, and the uniform quality fertilizer has the advantage of preventing the partial shortage of components in the soil. In addition, it can be suitably used in cultivation conditions where large particles of fertilizer cannot be used, such as green or slope landscaping of golf courses, cultivated soils for technology-intensive facility horticulture, and young plants. It has the advantage of effectively reusing industrial wastes, and it is possible to improve the fertilization method of trace elements with full-layer fertilization and surface fertilization.

Several kinds of components, namely magnesium, calcium, silicic acid, trace elements, amino acids, organics and organic acids, etc. can be fertilized at the same time, saving labor and preventing plant nutrient depletion. Unlike foliar fertilization and irrigation, fertilizers have high utilization rate, which is effective in preventing resource waste.

There is also an alternative to imports of foreign fertilizers flooded by import liberalization.

Claims (2)

0.1-1.0 wt% boric acid, 0.1-0.3 wt% copper sulfate, 0.2-0.3 wt% zinc sulfate, 0.3-0.4 wt% iron sulfate, in granulated water mixed with 7-8 wt% seaweed solution and 6-7 wt% tofu impurities % And 0.001 to 0.1% by weight of ammonium molybdate salt are mixed, and 0.1 to 0.2% by weight of ethylenediamine tetraacetate is added to the dissolution step of dissolving granulated water, An input process of injecting 30-40% by weight of the quenching slag into the rotary cooking assembly, A first spraying process of spraying dissolved granulated water while stirring the quenched slag; A second mixing spraying step of simultaneously adding 40-50% by weight of a zeolite powder, which is an additive powder, and dissolved granulated water to the quenched slag after the first spraying, A spherical granular trace element composite fertilizer manufacturing method comprising a drying step of removing the quench slag after the second mixing spraying step is completed and drying it at 90 to 100 ° C. The dissolved granulated water of the dissolution step according to claim 1, wherein the disintegrated granulated water in the dissolution step is 0.01% to 0.1% by weight of boric acid, 0.1% to 0.2% by weight of copper sulfate, 0.1% to 0.3% by weight of zinc sulfate, and 0.2% to 0.3% by weight of iron sulfate. Obtained by mixing 0.0005% to 0.01% by weight of ammonium molybdate, 0.2% to 0.4% by weight of manganese sulfate, and 0.05% to 0.15% by weight of ethylenediamine tetraacetate; Spherical granular microelement composite fertilizer manufacturing method, characterized in that the additive powder of the secondary mixing spraying process using a shell powder of 40 to 50% by weight, mixed and sprayed with 40 to 50% by weight of the quench slag together with the dissolved granulated water.