JPH0254316B2 - - Google Patents
Info
- Publication number
- JPH0254316B2 JPH0254316B2 JP58075200A JP7520083A JPH0254316B2 JP H0254316 B2 JPH0254316 B2 JP H0254316B2 JP 58075200 A JP58075200 A JP 58075200A JP 7520083 A JP7520083 A JP 7520083A JP H0254316 B2 JPH0254316 B2 JP H0254316B2
- Authority
- JP
- Japan
- Prior art keywords
- fertilizer
- fertilizers
- organic
- basic
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003337 fertilizer Substances 0.000 claims description 101
- 239000003895 organic fertilizer Substances 0.000 claims description 29
- 239000002253 acid Substances 0.000 claims description 28
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 26
- 239000011707 mineral Substances 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 17
- 239000007795 chemical reaction product Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 235000010755 mineral Nutrition 0.000 description 24
- 238000005469 granulation Methods 0.000 description 18
- 230000003179 granulation Effects 0.000 description 18
- 239000000047 product Substances 0.000 description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 150000007513 acids Chemical class 0.000 description 8
- 239000008187 granular material Substances 0.000 description 8
- 235000019484 Rapeseed oil Nutrition 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000000376 reactant Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 4
- 235000011130 ammonium sulphate Nutrition 0.000 description 4
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 210000003608 fece Anatomy 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 235000012054 meals Nutrition 0.000 description 4
- 239000002426 superphosphate Substances 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010871 livestock manure Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 description 3
- 235000011151 potassium sulphates Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 2
- 235000019289 ammonium phosphates Nutrition 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 235000019733 Fish meal Nutrition 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000010669 acid-base reaction Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 description 1
- 239000002374 bone meal Substances 0.000 description 1
- 229940036811 bone meal Drugs 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 229940099112 cornstarch Drugs 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002921 fermentation waste Substances 0.000 description 1
- 239000004467 fishmeal Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Description
本発明は、有機質肥料と無機質肥料を配合した
複合肥料を造粒して粒状複合肥料を製造する方法
に関する。
一般に、複合肥料はその肥効、施用時の撒き易
さおよび発塵防止並びに貯蔵時における固結防止
の観点から粒状化されているが、有機質肥料を配
合した複合肥料においては、有機質肥料の造粒性
が無機質肥料に比べて著しく劣るためその造粒が
困難であるので、造粒することなく単に配合した
形態で使用に供する場合が多い。
而して、有機質肥料は、土壤に施用後微生物の
分解作用によつて無機化され、その肥料成分が土
壤中に放出されて肥効を表わすものであつて、無
機質肥料に比べ肥効が緩徐であるため植物の生育
にとつて好ましいものであるが、これが粒状形態
であれば上記特性が一そう顕著となる。すなわ
ち、有機質肥料を配合した複合肥料を粒状化すれ
ばその付加価値が一そう高まるものである。
しかしながら、前述したように、有機質肥料の
造粒が困難なことから、有機質肥料を配合した複
合肥料の造粒技術の確立が課題となつている。因
みに、従来、上記複合肥料の造粒方法として、廃
糖蜜、コーンステイープリカー、発酵廃液等を造
粒促進材として用いる方法が試みられているが、
この方法で得られる粒状複合肥料ではその造粒性
が十分でなく、加うるに無機質肥料を配合した一
般の粒状複合肥料に比べて製品歩留りが劣るとい
う欠点がみられる。例えば、有機質肥料としての
ナタネ油粕を40重量％程度配合した複合肥料を造
粒したものでは、上述した一般の粒状複合肥料
（化成肥料）に比べて加水量が２倍、製品歩留り
は1/2であつて、そのため乾燥に要する燃費は２
〜３倍にも達する。また、従来、有機質肥料を配
合した複合肥料の造粒に際し、熔成りん肥のよう
な塩基性肥料を配合し、これに鉱酸液を加えて造
粒する方法も提案されており、この方法では一見
造粒性が向上するようにも考えられる。しかしな
がら、この方法による粒状化では鉱酸との反応性
が高い熔成りん肥および無機質肥料が造粒され易
く、一方鉱酸との反応性が悪い有機質肥料は造粒
され難いため、造粒後の製品に分級が生じ、その
結果、規格粒度以下の粒子の含量が多くなつて製
品歩留りの低下および規格粒中における有機質肥
料の含有率の低下をもたらし、且つ製品中におけ
る粒度別にみた場合の成形含有率の不均一化が避
けられなくなる欠点がみられる。
本発明者等は、上述したような現状に鑑み、有
機質肥料を配合した複合肥料の有利な粒状化につ
いて検討した結果、有機質肥料に予め塩基性肥料
と鉱酸の反応物を付着させたものを無機質肥料と
配合して得られた複合肥料を造粒すると、有機質
肥料の造粒性が著しく向上するため造粒して得ら
れる粒状複合肥料の製品歩留りも高くなり、且つ
製品中の粒度も均質となることの知見を得て、本
発明をなすに至つた。
したがつて、本発明は、有機質肥料を配合した
複合肥料において、均質な造粒が可能であつて、
製品歩留りの高い粒状化複合肥料の製造法を提供
することを目的とする。
以下本発明を詳しく説明する。
本発明の構成上の特徴は、有機質肥料を予め塩
基性肥料および鉱酸と混合処理して有機質肥料の
表面に塩基性肥料と鉱酸の反応物を付着させたも
のと、無機質肥料を配合した複合肥料を常法によ
り造粒することにある。
ここでいう“有機質肥料”は魚粕、蒸製てい角
粉、蒸製骨粉、ナタネ油粕、大豆油粕のような油
粕、家禽ふん、堆きゆう肥等を包含するものであ
り、又、このような有機質肥料と配合する無機質
肥料は硫安、塩安、硝安、りん安、塩化加里、硫
酸加里、過りん酸石灰、重過りん酸石灰等を包含
する。なお、この無機質肥料の配合に当つて尿素
のような肥料を一緒に配合してもよい。
本発明では、まず、上記有機質肥料に塩基性肥
料と鉱酸を交互に又は同時に添加してその表面を
塩基性肥料と鉱酸の反応物で処理する。ここで用
いる塩基性肥料としては熔成りん肥、焼成りん
肥、ケイ酸加里肥料、各種の石灰質肥料、塩基性
苦土肥料並びに鉱滓ケイ酸質肥料を例示し得、
又、鉱酸としては硫酸、塩酸、硝酸並びにりん酸
を例示し得る。
これらの塩基性肥料と鉱酸の反応物で有機質肥
料の表面を処理するには、有機質肥料をドラム型
あるいは皿型の成粒機もしくは各種の混合機に収
容し、これに塩基性肥料と鉱酸を加えて、転動又
は混合するとよく、この処理により有機質肥料の
表面に塩基性肥料と鉱酸の反応物が付着するよう
になる。この処理で用いる塩基性肥料の量は、有
機質肥料の物性（見かけ密度、粒径、造粒性）に
より異なるも、概ね有機質肥料１重量部に対して
0.1〜1.0重量部が適当であり、又、鉱酸は塩基性
肥料の反応理論量に基づいて0.1〜１当量が適当
である。なお、有機質肥料に対する上記反応物の
付着性を高めるには鉱酸を高濃度で用いることが
好ましいが、有機質肥料に対する塩基性肥料の使
用割合が低い場合には80重量％以上の高濃度の鉱
酸を用いると、酸−塩基の反応が部分的に進行し
て有機質肥料の表面における上記反応物の均一な
付着が行われなくなる恐れがあり、他方上記有機
質肥料の使用割合が高い場合には10重量％以下の
濃度の低い鉱酸を用いると、上記反応物の付着性
が低下するばかりでなく、以後の造粒時に有機質
肥料の表面に付着した上記反応物が剥離する恐れ
があるので留意する必要がある。したがつて、使
用する鉱酸の濃度は10〜80重量％程度が適当であ
る。
本発明では、上述のようにして処理した有機質
肥料を次いで無機質肥料と混合し、常法に従い鉱
酸液又は水を用いて調湿した後造粒するものであ
り、この造粒に当つては、有機質肥料の造粒性が
著しく向上しているため、それに配合した無機質
肥料との均一な造粒が行われ、その結果、粒度の
均質な且つ製品歩留りの高い粒状複合肥料が得ら
れる。
因みに、本発明において複合肥料に配合された
有機質肥料の造粒性が向上するのは下記理由に因
るものと推定される。
すなわち、表面に塩基性肥料と鉱酸の反応物を
付着させた有機質肥料は、該反応物中に水溶性塩
を含有しているため無機質肥料の造粒性に近似し
た性質を呈するようになり、しかも造粒時に調湿
の目的で鉱酸液を用いるとき上記反応物中の未反
応の塩基性肥料が鉱酸と反応して更に造粒性を高
めるものと考えられる。
叙上のように、本発明によると、従来均質な造
粒が困難とされていたところの、有機質肥料を配
合した複合肥料の造粒を有効に行うことが可能と
なり、得られる粒状複合肥料における粒度の差に
よる肥料成分の片寄りもなくなり、製品歩留りも
著しく向上し得るようになる。
したがつて、本発明によると、造粒した複合肥
料の乾燥に要する燃費は勿論のこと、電力等のエ
ネルギコストも低減でき、しかも製品の施用に際
しての粒の分級による肥効上のムラも防止できる
という利点がある。
以下に実施例を示して本発明を更に具体的に説
明する。
実施例 １
下記の表１に示す配合割合で各種有機質肥料を
皿型成形機並びにリボンミキサーに投入し、転動
もしくは混合しながら、表１に示す割合の塩基性
肥料と鉱酸を添加して、有機質肥料の表面に塩基
性肥料と鉱酸の反応物を付着させた。
The present invention relates to a method for producing a granular composite fertilizer by granulating a composite fertilizer containing an organic fertilizer and an inorganic fertilizer. Generally, compound fertilizers are granulated for their effectiveness, ease of spreading during application, prevention of dust generation, and prevention of caking during storage. Since it is difficult to granulate because its granularity is significantly inferior to that of inorganic fertilizers, it is often used simply in a blended form without granulation. Therefore, organic fertilizers are mineralized by the decomposition action of microorganisms after being applied to the soil, and the fertilizer components are released into the soil to exhibit the fertilizing effect, and the fertilizing effect is slower than that of inorganic fertilizers. Therefore, it is preferable for plant growth, but if it is in a granular form, the above characteristics will be even more pronounced. In other words, if a compound fertilizer containing organic fertilizer is granulated, its added value will be greatly increased. However, as mentioned above, it is difficult to granulate organic fertilizers, so establishing a granulation technology for compound fertilizers containing organic fertilizers has been a challenge. Incidentally, as a method for granulating the above-mentioned compound fertilizer, methods using blackstrap molasses, cornstarch liquor, fermentation waste liquid, etc. as a granulation accelerator have been attempted in the past.
The granular composite fertilizer obtained by this method does not have sufficient granulation properties, and in addition, the product yield is inferior to that of general granular composite fertilizers containing inorganic fertilizers. For example, when granulating a compound fertilizer containing approximately 40% by weight of rapeseed oil cake as an organic fertilizer, the amount of water added is twice as high as that of the general granular compound fertilizer (chemical fertilizer) mentioned above, and the product yield is halved. Therefore, the fuel consumption required for drying is 2
Up to 3 times as much. In addition, when granulating a compound fertilizer containing organic fertilizer, a method has been proposed in which a basic fertilizer such as molten phosphorous fertilizer is blended and a mineral acid solution is added to the granulate. At first glance, it seems that the granulation property is improved. However, when granulating using this method, fused phosphorous fertilizers and inorganic fertilizers that are highly reactive with mineral acids are easily granulated, while organic fertilizers that are poorly reactive with mineral acids are difficult to granulate. As a result, the content of particles below the standard particle size increases, resulting in a decrease in product yield and a decrease in the content of organic fertilizer in the standard grains. There is a drawback that non-uniformity of content cannot be avoided. In view of the above-mentioned current situation, the present inventors investigated the advantageous granulation of compound fertilizers containing organic fertilizers, and as a result, they developed a method of granulating organic fertilizers to which a reactant of basic fertilizers and mineral acids was attached in advance. When a composite fertilizer obtained by blending with an inorganic fertilizer is granulated, the granulation properties of the organic fertilizer are significantly improved, so the product yield of the granular composite fertilizer obtained by granulation is also high, and the particle size in the product is also uniform. The present invention was made based on the knowledge that Therefore, the present invention enables homogeneous granulation in a compound fertilizer containing organic fertilizer, and
The purpose of this invention is to provide a method for producing granulated compound fertilizer with high product yield. The present invention will be explained in detail below. The structural feature of the present invention is that an organic fertilizer is mixed with a basic fertilizer and a mineral acid in advance so that a reaction product of the basic fertilizer and a mineral acid is attached to the surface of the organic fertilizer, and an inorganic fertilizer is mixed. The purpose is to granulate a compound fertilizer using a conventional method. "Organic fertilizer" here includes fish meal, steamed corn meal, steamed bone meal, rapeseed oil meal, oil meal such as soybean oil meal, poultry manure, composted manure, etc. Inorganic fertilizers to be mixed with the fertilizer include ammonium sulfate, ammonium chloride, ammonium nitrate, ammonium phosphate, potassium chloride, potassium sulfate, lime superphosphate, lime heavy superphosphate, and the like. In addition, when blending this inorganic fertilizer, a fertilizer such as urea may be blended together. In the present invention, first, a basic fertilizer and a mineral acid are added alternately or simultaneously to the organic fertilizer, and the surface thereof is treated with a reaction product of the basic fertilizer and the mineral acid. Examples of the basic fertilizer used here include fused phosphorous fertilizer, calcined phosphorous fertilizer, potassium silicate fertilizer, various calcareous fertilizers, basic magnesia fertilizer, and slag silicic acid fertilizer,
Examples of mineral acids include sulfuric acid, hydrochloric acid, nitric acid, and phosphoric acid. To treat the surface of organic fertilizer with a reaction product of these basic fertilizers and mineral acids, the organic fertilizer is placed in a drum-type or dish-type granulator or various mixers, and then the basic fertilizer and mineral acid are added to the organic fertilizer. It is best to add an acid and tumble or mix it, and this treatment allows the reaction product of the basic fertilizer and mineral acid to adhere to the surface of the organic fertilizer. The amount of basic fertilizer used in this treatment varies depending on the physical properties of the organic fertilizer (apparent density, particle size, granulation properties), but is generally based on 1 part by weight of the organic fertilizer.
A suitable amount is 0.1 to 1.0 parts by weight, and a suitable amount of mineral acid is 0.1 to 1 equivalent based on the theoretical reaction amount of the basic fertilizer. Note that in order to increase the adhesion of the above reactants to organic fertilizers, it is preferable to use mineral acids at high concentrations; however, when the ratio of basic fertilizers to organic fertilizers is low, mineral acids with high concentrations of 80% by weight or more are preferred. If an acid is used, the acid-base reaction may proceed partially and the above reactants may not adhere uniformly to the surface of the organic fertilizer.On the other hand, if the usage rate of the above organic fertilizer is high, Note that if a mineral acid with a low concentration of less than % by weight is used, not only will the adhesion of the above reactants decrease, but also the above reactants attached to the surface of the organic fertilizer may be peeled off during subsequent granulation. There is a need. Therefore, the appropriate concentration of the mineral acid used is about 10 to 80% by weight. In the present invention, the organic fertilizer treated as described above is then mixed with inorganic fertilizer, the humidity is adjusted using a mineral acid solution or water according to a conventional method, and then granulated. Since the granulation properties of the organic fertilizer are significantly improved, uniform granulation with the inorganic fertilizer blended therein is performed, and as a result, a granular composite fertilizer with uniform particle size and high product yield can be obtained. Incidentally, it is presumed that the reason why the granulation property of the organic fertilizer blended into the composite fertilizer in the present invention is improved is due to the following reason. In other words, an organic fertilizer with a reaction product of a basic fertilizer and a mineral acid attached to its surface exhibits properties similar to the granulation properties of an inorganic fertilizer because the reaction product contains water-soluble salts. Moreover, when a mineral acid solution is used for the purpose of humidity control during granulation, it is thought that the unreacted basic fertilizer in the reaction product reacts with the mineral acid to further improve granulation properties. As mentioned above, according to the present invention, it is now possible to effectively granulate a compound fertilizer containing organic fertilizer, which was difficult to granulate uniformly, and the resulting granular compound fertilizer has Unbalanced distribution of fertilizer components due to differences in particle size is also eliminated, and product yield can be significantly improved. Therefore, according to the present invention, it is possible to reduce not only the fuel consumption required for drying the granulated composite fertilizer but also the energy cost such as electric power, and also prevent unevenness in fertilizer effect due to classification of grains when applying the product. It has the advantage of being possible. EXAMPLES The present invention will be explained in more detail with reference to Examples below. Example 1 Various organic fertilizers were put into a dish molding machine and a ribbon mixer at the mixing ratios shown in Table 1 below, and while rolling or mixing, basic fertilizers and mineral acids were added at the ratios shown in Table 1. , a reaction product of basic fertilizer and mineral acid was attached to the surface of organic fertilizer.
【表】
上述のようにして得られた各有機質肥料を下記
表２に示す配合割合で各種無機質肥料と配合した
複合肥料を鉱酸液並びに水を造粒液として用いて
常法により皿型成粒機で調湿、造粒した後乾燥し
て粒状複合肥料を得た。得られた各粒状複合肥料
を３mm並びに９mmの篩でふるい分けして各製品歩
留りを求めた。なお、比較として、上記処理を施
していない有機質肥料を用い、これらの有機質肥
料を後述したと同様の配合割合で上掲の各塩基性
肥料および無機質肥料に配合したものを同様に造
粒したものについても製品歩留りを求めた。結果
は表２に示すとおりである。[Table] A composite fertilizer obtained by blending each organic fertilizer obtained as described above with various inorganic fertilizers in the proportions shown in Table 2 below was molded into a dish shape using a mineral acid solution and water as a granulating solution by a conventional method. The humidity was controlled using a granulator, the mixture was granulated, and then dried to obtain a granular composite fertilizer. Each of the obtained granular compound fertilizers was sieved through 3 mm and 9 mm sieves to determine the yield of each product. For comparison, using organic fertilizers that had not been subjected to the above treatment, these organic fertilizers were mixed with the basic fertilizers and inorganic fertilizers listed above at the same proportions as described below, and then granulated in the same way. The product yield was also determined. The results are shown in Table 2.
【表】【table】
【表】
表２にみられるように、本発明に従つて造粒し
て得られた粒状複合肥料の製品歩留りが比較例の
ものに比べて顕著に高いことが伴る。
実施例 ２
ナタネ油粕350重量部、熔成りん肥106重量部お
よび20％硫酸70重量部を皿型成粒機を用いて均一
に混合処理してナタネ油粕の表面に熔成りん肥と
硫酸の反応物を付着させた。このようにして得ら
れたナタネ油粕と下記表３に示す配合割合の無機
質肥料を配合して複合肥料を調製し、この複合肥
料を、造粒液として20％硫酸液を用いて常法によ
り皿型成粒機で調湿、造粒し、乾燥した。このよ
うにして得られた粒状複合肥料を３mm並びに９mm
の篩でふるい分けして製品歩留りを求めたところ
89％であつた。なお、比較例としてナタネ油粕
350重量部に上記処理を施すことなく、熔成りん
肥106重量部と表３に示す配合割合の硫安、りん
安および塩化加里を配合した複合肥料を上記と同
様にして造粒し、乾燥後ふるい分けして得られた
ものの製品歩留りを求めたところ64％であつた。[Table] As seen in Table 2, the product yield of the granular composite fertilizer obtained by granulation according to the present invention is significantly higher than that of the comparative example. Example 2 350 parts by weight of rapeseed oil cake, 106 parts by weight of molten phosphorus fertilizer and 70 parts by weight of 20% sulfuric acid were uniformly mixed using a dish-type granulator to coat the surface of rapeseed oil cake with molten phosphorus fertilizer and sulfuric acid. The reactants were attached. A composite fertilizer is prepared by blending the thus obtained rapeseed oil cake with an inorganic fertilizer in the proportion shown in Table 3 below. The moisture was controlled, granulated, and dried using a mold granulator. The granular compound fertilizer obtained in this way was applied to 3 mm and 9 mm.
The product yield was determined by sifting with a sieve.
It was 89%. In addition, as a comparative example, rapeseed oil cake
Without applying the above treatment to 350 parts by weight, a compound fertilizer containing 106 parts by weight of molten phosphorous fertilizer and ammonium sulfate, ammonium phosphorous and potassium chloride in the proportions shown in Table 3 was granulated in the same manner as above, and after drying. When the product yield of the sieved product was determined, it was 64%.
【表】
次に、上述のようにして得られた各粒状複合肥
料について粒度分布および窒素成分の分析値を調
べた結果を示すと表４のとおりである。[Table] Next, Table 4 shows the results of examining the particle size distribution and nitrogen component analysis values for each of the granular composite fertilizers obtained as described above.
【表】
表４にみられるように、本発明により得られる
粒状複合肥料ではその窒素成分の含量（％）は各
粒径とも平均しているが比較例で得られたもので
は有機態窒素成分は小さい粒径の部分に多く含ま
れていることが判る。
実施例 ３
牛ふんきゆう肥（風乾物、１mm篩全通過）200
重量部に、水酸化苦土肥料36重量部と72％硫酸12
重量部を添加してミキサーにより良く混合処理し
た。このようにして得られた処理物に尿素31重量
部、硫安206重量部、りん安93重量部、過りん酸
石灰50重量部、硫酸加里126重量部および泥炭270
重量部を加えて混合し、得られた複合肥料を皿型
成粒機に投入し、20％硫酸液を用いて調湿、造粒
した。この造粒物を乾燥後篩別し（３mm〜９mm）、
製品歩留りを測定したところ84％であつた。一
方、比較例として牛ふんきゆう肥、水酸化苦土肥
料、尿素、硫安、りん安、過りん酸石灰、硫酸加
里および泥炭を上記と同一の配合割合で単に混合
したものを、上記と同様にして調湿、造粒し、乾
燥後篩別したものの製品歩留りを測定したところ
73％であつた。[Table] As shown in Table 4, the content (%) of nitrogen components in the granular composite fertilizer obtained by the present invention is average for each particle size, but the organic nitrogen content in the fertilizer obtained in the comparative example is It can be seen that a large amount of is contained in the small particle size portion. Example 3 Cow manure (air-dried, passed through 1mm sieve) 200
Part by weight: 36 parts by weight of hydroxide magnesium fertilizer and 12 parts by weight of 72% sulfuric acid
Parts by weight were added and thoroughly mixed using a mixer. The thus obtained treated product contains 31 parts by weight of urea, 206 parts by weight of ammonium sulfate, 93 parts by weight of ammonium phosphate, 50 parts by weight of lime superphosphate, 126 parts by weight of potassium sulfate, and 270 parts by weight of peat.
Parts by weight were added and mixed, and the obtained composite fertilizer was put into a dish-type granulator, and the humidity was adjusted using a 20% sulfuric acid solution and granulated. After drying this granulated material, it was sieved (3 mm to 9 mm),
When the product yield was measured, it was 84%. On the other hand, as a comparative example, a mixture of cow dung manure, hydroxide magnesium fertilizer, urea, ammonium sulfate, ammonium phosphorus, superphosphate lime, potassium sulfate, and peat in the same proportions as above was prepared in the same manner as above. The product yield was measured after drying, granulating, drying, and sieving.
It was 73%.
Claims (1)
状複合肥料を製造する方法において、有機質肥料
を塩基性肥料および鉱酸と混合処理してその表面
に塩基性肥料と鉱酸の反応物を付着させ、次いで
このようにして得られた有機質肥料と無機質肥料
を配合した複合肥料を造粒することを特徴とする
粒状複合肥料の製造法。1. In a method of producing granular compound fertilizer by granulating a compound fertilizer containing organic fertilizer, the organic fertilizer is mixed with a basic fertilizer and a mineral acid, and a reaction product of the basic fertilizer and the mineral acid is attached to the surface. A method for producing a granular composite fertilizer, which comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58075200A JPS59203789A (en) | 1983-04-28 | 1983-04-28 | Manufacture of granular composite fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58075200A JPS59203789A (en) | 1983-04-28 | 1983-04-28 | Manufacture of granular composite fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59203789A JPS59203789A (en) | 1984-11-17 |
| JPH0254316B2 true JPH0254316B2 (en) | 1990-11-21 |
Family
ID=13569311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58075200A Granted JPS59203789A (en) | 1983-04-28 | 1983-04-28 | Manufacture of granular composite fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59203789A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006206341A (en) * | 2005-01-25 | 2006-08-10 | San-Ei Sucrochemical Co Ltd | Organic fertilizer and its manufacturing method |
| JP5131890B2 (en) * | 2006-02-21 | 2013-01-30 | 多木化学株式会社 | Production method of granular sulfur |
-
1983
- 1983-04-28 JP JP58075200A patent/JPS59203789A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59203789A (en) | 1984-11-17 |
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