WO2020087621A1 - Round particle quick-acting high-concentration sulfur fertilizer and production method - Google Patents
Round particle quick-acting high-concentration sulfur fertilizer and production method Download PDFInfo
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- WO2020087621A1 WO2020087621A1 PCT/CN2018/118145 CN2018118145W WO2020087621A1 WO 2020087621 A1 WO2020087621 A1 WO 2020087621A1 CN 2018118145 W CN2018118145 W CN 2018118145W WO 2020087621 A1 WO2020087621 A1 WO 2020087621A1
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D5/00—Fertilisers containing magnesium
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
Definitions
- the invention relates to the field of fertilizer manufacturing, specifically the field of sulfur fertilizer production, that is, a round particle quick-acting high-concentration sulfur fertilizer and a production method.
- Sulfur is an indispensable and important element in the process of crop growth. In addition to a large amount of nitrogen, phosphorus and potassium, the amount of sulfur required by crops is similar to that of phosphorus. In some sulfur-loving crops, the demand for sulfur is even much greater than phosphorus. It is called the fourth nutrient element after NPK. To synthesize protein in crops, sulfur must be used. The ratio of sulfur and nitrogen in grain protein is 1:15. If sulfur is insufficient, nitrogen will not be absorbed by crops. Sulfur also promotes the formation of oil in the body and increases the plant's ability to resist cold, drought, and pests. The application of sulfur fertilizer can increase the utilization rate of a large number of elements, which can reduce the amount of fertilizer and save fertilizer and increase efficiency.
- Patent US4857098, Patent WO2008 / 103728A1, Patent WO2015 / 070496A1, Patent CN100516003C, Patent CN101805235B, Patent CN103553849A, Patent CN104496691A, Patent CN104108977A and Patent CN106316620A, etc. involve sulfur-coated urea and sulfur-coated sulfur-magnesium fertilizer, and the main role of sulfur is to prevent Fertilizer is released too quickly.
- sulfur-coated fertilizer is applied to soil, sulfur will exist in the form of "coated shell" as the fertilizer core dissolves, and its decomposition and release is slow, which is not conducive to the use of sulfur.
- the second type of sulfur-containing fertilizer is to add sulfur to the middle of fertilizer particles to prepare sulfur-containing fertilizer.
- Patent WO01 / 87803A1, patent EP2248790A1, patent CN100434399C, patent CN1380879A and patent CN1990434A disclose a sulfur-containing fertilizer and a preparation method thereof.
- the specific method is to disperse sulfur in the granular fertilizer during granulation of the fertilizer. This process is not only complicated, but the production process is not easy to control.
- the main disadvantage is that sulfur is added internally. There is a risk of sulfur explosion due to the return of materials during the production process.
- Patent US8679219B2 describes a sulfur-containing fertilizer and its preparation method, which is specifically characterized by grinding a sulfur powder and phosphoric acid with a dispersion grinder to finally obtain micron-sized sulfur particles, and then adding other fertilizer components to remove excess moisture After granulation, prepare a granular fertilizer containing sulfur.
- sulfur wet milling can reduce dust and reduce the risk of sulfur explosion, but the problem is that the process is long, the operation is cumbersome, difficult to control, and the cost is too high.
- the third type of sulfur-containing fertilizer is to directly prepare sulfur into granules.
- Patent US2014 / 0216120A1, Patent US2014 / 0109639A1, and Patent CN103771998A, etc. introduce a fertilizer containing medium element sulfur, trace elements, phosphate ore, etc.
- the trace element substance is added to liquid sulfur, and a steel belt granulator is used to prepare a sulfur fertilizer containing medium trace elements.
- This technology can produce fertilizers with high sulfur content.
- the main problem is that the production process of the steel belt granulator is discontinuous, the production capacity is small, and the fertilizer is flat and hemispherical, which is unevenly dispersed in the blended fertilizer and affects the blending effect. .
- the purpose of the present invention is to overcome the above-mentioned problems in the prior art, and to provide a round particle quick-acting high-concentration sulfur fertilizer and a production method.
- the present invention has a simple implementation mode, high efficiency, and better safety.
- the present invention has the following specific features:
- the sulfur fertilizer produced by the invention is in the form of round granules, has simple production equipment, continuous processes and higher productivity, and the round granule sulfur fertilizer is used as a raw material for blending fertilizers, and the blending effect is better.
- the swelling material is added to the sulfur fertilizer to quickly disintegrate the sulfur fertilizer into particles, and the crop can accelerate the absorption of the sulfur fertilizer and quickly and fully utilize nutrients.
- the sulfur content in the present invention is very high, and it also contains other medium trace elements and swelling materials.
- the other medium trace elements and sulfur can cooperate well, and the swelling materials can quickly disintegrate the sulfur fertilizer. Under the action of soil sulfur bacteria, the disintegrated sulfur particles are converted into sulfate form, which is quickly used by crops.
- a round granule quick-acting high-concentration sulfur fertilizer each component is calculated by mass percentage, characterized in that the sulfur fertilizer is in the form of round granules, the sulfur in the sulfur fertilizer accounts for 50% -90%, and the swelling material accounts for 5% -20% , The medium and trace elements other than sulfur account for 5% -45%; the preparation method is: heating the sulfur to a liquid state, adding the swelling material and the medium and trace elements other than sulfur to the liquid sulfur and mixing them uniformly to prepare a sulfur fertilizer mixed slurry Then, the sulfur fertilizer mixture slurry is pumped into the high tower granulation equipment. The sulfur fertilizer mixture slurry is sprayed out through the nozzle, falls in a spherical shape under the action of surface tension, exchanges heat with the air, and after cooling and solidification, round particles are obtained with high efficiency Concentration sulfur fertilizer.
- the medium trace element is one or a mixture of more than one element, oxide, or anhydrous compound containing sulfur, calcium, magnesium, silicon, iron, manganese, copper, zinc, boron, and molybdenum elements.
- the swelling material is one or a mixture of two or more of chitosan, cellulose, sodium polyacrylate, polyacrylamide, and polyvinyl alcohol.
- the molecular weight of the swollen material is 5000-100000.
- the solubility of the above trace elements is divided into two types: water-soluble type and water-insoluble type.
- the medium and trace elements contain at least one water-soluble substance.
- a production method of round particle quick-acting high-concentration sulfur fertilizer which is characterized by the following steps: heating and melting solid sulfur, adding medium and trace elements other than sulfur and swelling material to liquid sulfur, and mixing to prepare sulfur fertilizer mixture
- the slurry of sulfur fertilizer is then pumped into the granulation equipment of high tower.
- the slurry of sulfur fertilizer is sprayed out through the spray head and falls in a spherical shape under the action of surface tension. It exchanges heat with the air, and after cooling and solidification, the round particles are quickly obtained.
- High concentration sulfur fertilizer is characterized by the following steps: heating and melting solid sulfur, adding medium and trace elements other than sulfur and swelling material to liquid sulfur, and mixing to prepare sulfur fertilizer mixture
- the slurry of sulfur fertilizer is then pumped into the granulation equipment of high tower.
- the slurry of sulfur fertilizer is sprayed out through the spray head and falls in a spherical shape under the action of surface tension. It exchanges heat with the air, and after cooling
- the temperature of the sulfur fertilizer mixed slurry is controlled at 120-155 ° C.
- the advantages of the present invention are as follows: 1.
- the sulfur fertilizer is round granules, and the sulfur content is high, which fills the gap of high concentration sulfur fertilizers without round granules in the market; 2.
- the swelling material is added to the sulfur fertilizer, which can quickly disintegrate into sulfur particles and accelerate Absorption of sulfur by crops. 3. It can realize continuous large-scale production, low energy consumption and high production efficiency, which overcomes the problems of current high-concentration sulfur fertilizer process discontinuity and low production capacity; 4.
- the application of round granular sulfur fertilizer is more convenient and can be widely used in blending In fertilizer, and blended evenly, the effect is good; 5. Synergistic effect among nutrients in sulfur fertilizer.
- This sulfur fertilizer contains elemental sulfur and sulfate, as well as trace elements such as magnesium, zinc, copper and boron. Each nutrient element cooperates with each other to achieve excellent plant nutritional functions.
- Boron promotes the absorption of nitrogen and can increase the utilization rate of nitrogen.
- sulfur and nitrogen are also synergistic. Both are protein components and are indispensable for chlorophyll formation. This boron-containing sulfur fertilizer can significantly improve the utilization rate of nitrogen fertilizer.
- (1) Put solid sulfur in a jacketed reactor and heat it to a liquid state with an electric heating rod.
- the components account for the following: 60% sulfur, 10% magnesium oxide, 5% zinc oxide, 5% manganese sulfate, 10% polyacrylamide with a molecular weight of 100,000 and polyvinyl alcohol with a molecular weight of 60,000.
- This sulfur fertilizer is a medium and trace element fertilizer containing double-effect sulfur, magnesium, zinc, and manganese. It is especially suitable for crops with large demand for sulfur, such as peanuts, peas, potatoes, citrus, sugar beet and other crops.
- the round particle quick-acting high-concentration sulfur fertilizer produced in this case is a new fertilizer containing medium, trace elements such as sulfur, silicon and zinc, which can be used in the rice planting process.
- Silicon is an important nutrient element composed of plants, and is listed by the international soil community as the fourth largest element after nitrogen, phosphorus, and potassium. Silicon fertilizer can improve the resistance of crops to pests and diseases and reduce the occurrence of various pests and diseases. After the crops absorb silicon, they can form siliconized cells in the plant body, thicken the cell walls of the stem and leaf surface, and increase the cuticle, forming a strong protective layer. It is not easy for insects to bite, it is difficult for bacteria to invade, and it can also improve the lodging resistance of crops. Rice, wheat, corn, peanut, soybean, watermelon, fruit tree, vegetable and other crops, after applying silicon fertilizer, can generally increase production by 10% to 25%. Under the synergy of sulfur and zinc, the role of silicon is more significant.
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to a round particle quick-acting high-concentration sulfur fertilizer and a production method, which are characterized in that: the sulfur fertilizer is a round-particle fertilizer, sulfur accounts for 50%-90% of the fertilizer, a swelling material accounts for 5%-20%, and medium or trace elements other than sulfur account for 5%-45%. The production method comprises: heating and melting solid sulfur, adding other medium and trace elements and a swelling material into the liquid sulfur and mixing uniformly, then pumping the mixed slurry into a high-tower granulating device to produce round particle high-concentration quick-acting sulfur fertilizer. The present invention has the following advantages: the sulfur fertilizer is round particle-shaped, and fills the gap in the market for a round particle high-concentration sulfur fertilizer; meanwhile, continuous large-scale production may be achieved, and bottlenecks under the discontinuity and low productivity of current high-concentration sulfur fertilizer processes are overcome; the process described in the present invention consumes little energy and is highly efficient; moreover, round particle sulfur fertilizer is more convenient to use, and may be widely applied in blended fertilizers, blending being uniform and the effects being good; a synergistic effect is achieved between various nutrient elements in the sulfur fertilizer; a swelling material is added into the sulfur fertilizer such that the fertilizer may quickly disintegrate into sulfur particles, thereby accelerating the absorption of sulfur by crops.
Description
本发明涉及肥料制造领域，具体为硫肥的生产领域，即一种圆颗粒速效高浓度硫肥及生产方法。The invention relates to the field of fertilizer manufacturing, specifically the field of sulfur fertilizer production, that is, a round particle quick-acting high-concentration sulfur fertilizer and a production method.
硫是作物生长过程中必不可少重要的元素，除了氮磷钾大量元素外，作物需要硫元素的量与磷相近，在某些喜硫作物中，硫的需求量甚至远远大于磷，被称为氮磷钾之后的第四营养元素。作物合成蛋白质必需要硫，硫和氮在籽粒蛋白质中的比值是1:15，若硫不足，则氮也不被作物吸收。硫还促进体内油脂形成，增加植物抗寒、抗旱和抗病虫能力。硫肥的施用可以提高大量元素的利用率，从而可以减少肥料的用量，节肥增效。Sulfur is an indispensable and important element in the process of crop growth. In addition to a large amount of nitrogen, phosphorus and potassium, the amount of sulfur required by crops is similar to that of phosphorus. In some sulfur-loving crops, the demand for sulfur is even much greater than phosphorus. It is called the fourth nutrient element after NPK. To synthesize protein in crops, sulfur must be used. The ratio of sulfur and nitrogen in grain protein is 1:15. If sulfur is insufficient, nitrogen will not be absorbed by crops. Sulfur also promotes the formation of oil in the body and increases the plant's ability to resist cold, drought, and pests. The application of sulfur fertilizer can increase the utilization rate of a large number of elements, which can reduce the amount of fertilizer and save fertilizer and increase efficiency.
然而，硫磺最大的问题是不溶于水，施于土壤后，需要在硫细菌的作用下，才能缓慢转化为作物可以利用的形态，这在很大程度上影响其使用。有研究表明，硫磺粒径越小，在土壤中被氧化利用速率越快，利用率也越高。However, the biggest problem of sulfur is that it is insoluble in water. After being applied to the soil, it needs to be slowly transformed into a form that can be used by crops under the action of sulfur bacteria, which greatly affects its use. Studies have shown that the smaller the particle size of sulfur, the faster the rate of oxidation and utilization in soil, and the higher the utilization rate.
近年来对于硫肥产品的开发越来越多，主要分为三大类：一类是利用硫磺不溶于水的特性，对肥料进行包衣，制备硫包衣缓释肥料。专利US4857098、专利WO2008/103728A1、专利WO2015/070496A1、专利CN100516003C、专利CN101805235B、专利CN103553849A、专利CN104496691A、专利CN104108977A和专利CN106316620A等涉及到硫包衣尿素和硫包衣硫镁肥，硫磺主要作用是阻止肥料过快释放，然而，当硫包衣肥料施于土壤后，随着肥芯的溶出，硫会以“包衣壳”形式存在，其分解释放较慢，不利于硫的利用。In recent years, there have been more and more development of sulfur fertilizer products, which are mainly divided into three categories: one is to use sulfur insoluble in water to coat fertilizers to prepare sulfur-coated slow-release fertilizers. Patent US4857098, Patent WO2008 / 103728A1, Patent WO2015 / 070496A1, Patent CN100516003C, Patent CN101805235B, Patent CN103553849A, Patent CN104496691A, Patent CN104108977A and Patent CN106316620A, etc. involve sulfur-coated urea and sulfur-coated sulfur-magnesium fertilizer, and the main role of sulfur is to prevent Fertilizer is released too quickly. However, when sulfur-coated fertilizer is applied to soil, sulfur will exist in the form of "coated shell" as the fertilizer core dissolves, and its decomposition and release is slow, which is not conducive to the use of sulfur.
第二类含硫肥料是将硫磺内加到肥料颗粒中间，制备成含硫肥料。专利WO01/87803A1、专利EP2248790A1、专利CN100434399C、专利CN1380879A和专利CN1990434A公开了一种含硫肥料及其制备方法,具体做法是在肥料造粒过程中，将硫磺分散在颗粒肥料内部。该工艺不仅复杂，而且生产过程不容易控制，最主要的缺点是硫为内部添加方式，生产过程中因有返料产生，存在硫磺***的风险。专利US8679219B2介绍了一种含硫肥料及其制备方法，具体表现为用分散研磨机将硫磺粉与磷酸等液体研 磨，最终得到微米级粒径的硫磺颗粒，然后加入其它肥料组分，除去多余水分后造粒，制备成含有硫磺的颗粒肥料。该技术中硫磺湿磨可以减少粉尘，降低硫磺***风险，但存在问题是该工艺流程较长，操作繁琐，不易控制，成本过高。The second type of sulfur-containing fertilizer is to add sulfur to the middle of fertilizer particles to prepare sulfur-containing fertilizer. Patent WO01 / 87803A1, patent EP2248790A1, patent CN100434399C, patent CN1380879A and patent CN1990434A disclose a sulfur-containing fertilizer and a preparation method thereof. The specific method is to disperse sulfur in the granular fertilizer during granulation of the fertilizer. This process is not only complicated, but the production process is not easy to control. The main disadvantage is that sulfur is added internally. There is a risk of sulfur explosion due to the return of materials during the production process. Patent US8679219B2 describes a sulfur-containing fertilizer and its preparation method, which is specifically characterized by grinding a sulfur powder and phosphoric acid with a dispersion grinder to finally obtain micron-sized sulfur particles, and then adding other fertilizer components to remove excess moisture After granulation, prepare a granular fertilizer containing sulfur. In this technology, sulfur wet milling can reduce dust and reduce the risk of sulfur explosion, but the problem is that the process is long, the operation is cumbersome, difficult to control, and the cost is too high.
第三类含硫肥料是将硫磺直接制备成粒状，专利US2014/0216120A1、专利US2014/0109639A1和专利CN103771998A等介绍了一种含有中量元素硫、微量元素、磷矿石等物质的肥料，具体做法是将微量元素物质加入液体硫磺中，利用钢带造粒机制备含有中微量元素的硫肥。该技术可以制备出硫含量很高的肥料，主要问题是钢带造粒机生产工艺不连续，产能较小，且肥料是扁的半球状，在掺混肥中分散不均匀，影响掺混效果。The third type of sulfur-containing fertilizer is to directly prepare sulfur into granules. Patent US2014 / 0216120A1, Patent US2014 / 0109639A1, and Patent CN103771998A, etc. introduce a fertilizer containing medium element sulfur, trace elements, phosphate ore, etc. The trace element substance is added to liquid sulfur, and a steel belt granulator is used to prepare a sulfur fertilizer containing medium trace elements. This technology can produce fertilizers with high sulfur content. The main problem is that the production process of the steel belt granulator is discontinuous, the production capacity is small, and the fertilizer is flat and hemispherical, which is unevenly dispersed in the blended fertilizer and affects the blending effect. .
发明内容Summary of the invention
本发明目的为了克服上述现有技术存在的问题，提供一种圆颗粒速效高浓度硫肥及生产方法，本发明实现方式简单、效率高、安全性更好。本发明具体如下特点：The purpose of the present invention is to overcome the above-mentioned problems in the prior art, and to provide a round particle quick-acting high-concentration sulfur fertilizer and a production method. The present invention has a simple implementation mode, high efficiency, and better safety. The present invention has the following specific features:
1、颗粒圆。不同于钢带造粒硫肥，钢带造粒工艺不连续，产能小，操作繁琐，钢带造粒硫肥形状不规则，掺混不均匀，影响掺混肥使用效果。而本发明生产的硫肥为圆颗粒状，生产设备简单，工艺连续，产能更高，圆颗粒硫肥作为掺混肥原料，掺混效果更好。1. Round particles. Different from the steel belt granulation sulfur fertilizer, the steel belt granulation process is discontinuous, the production capacity is small, the operation is cumbersome, the steel belt granulation sulfur fertilizer is irregular in shape, and the mixing is uneven, which affects the use effect of the mixed fertilizer. The sulfur fertilizer produced by the invention is in the form of round granules, has simple production equipment, continuous processes and higher productivity, and the round granule sulfur fertilizer is used as a raw material for blending fertilizers, and the blending effect is better.
2、速效。硫肥中添加溶胀材料，将硫肥快速崩解成微粒，作物能加快吸收硫肥，快速且充分利用养分。2. Quick effect. The swelling material is added to the sulfur fertilizer to quickly disintegrate the sulfur fertilizer into particles, and the crop can accelerate the absorption of the sulfur fertilizer and quickly and fully utilize nutrients.
3、浓度高。不同于硫包衣缓释肥料，本发明中硫的含量很高，且同时含有其它中微量元素和溶胀材料，其它中微量元素与硫可以很好的协同，溶胀材料可将硫肥迅速崩解，崩解后的硫磺微粒在土壤硫细菌的作用下转化成硫酸根形态，从而快速被作物利用。3. High concentration. Unlike sulfur-coated slow-release fertilizers, the sulfur content in the present invention is very high, and it also contains other medium trace elements and swelling materials. The other medium trace elements and sulfur can cooperate well, and the swelling materials can quickly disintegrate the sulfur fertilizer. Under the action of soil sulfur bacteria, the disintegrated sulfur particles are converted into sulfate form, which is quickly used by crops.
4、安全高。不同于内加硫磺肥料，多采用在造粒时内添加硫，此种方式会在生产过程中产生返料，硫粉尘极易在***中累积，存在***的风险，且操作繁琐。而本发明通过高塔造粒设备将硫磺制备成圆颗粒状，硫含量更高，生产过程中安全性更高。4. High safety. Different from sulfur fertilizers, sulfur is added during granulation. This method will produce feed back during the production process. Sulfur dust is easy to accumulate in the system, there is a risk of explosion, and the operation is cumbersome. In the present invention, the sulfur is prepared into round granules by a high-tower granulation equipment, the sulfur content is higher, and the safety in the production process is higher.
本发明的具体实现方式如下：The specific implementation of the present invention is as follows:
一种圆颗粒速效高浓度硫肥，各组分按质量百分比计，其特征在于：硫肥为圆颗粒状，硫肥中硫磺占比50％-90％，溶胀材料占比5％-20％，硫之外的中微量元素占比 5％-45％；制备方法为：将硫磺加热至液态，在液态硫磺中添加溶胀材料和硫之外的中微量元素并混合均匀制备硫肥混合料浆，然后将硫肥混合料浆泵入高塔造粒设备，硫肥混合料浆通过喷头喷出，在表面张力的作用下以球状下落，与空气进行热交换，冷却凝固后得到圆颗粒速效高浓度硫肥。A round granule quick-acting high-concentration sulfur fertilizer, each component is calculated by mass percentage, characterized in that the sulfur fertilizer is in the form of round granules, the sulfur in the sulfur fertilizer accounts for 50% -90%, and the swelling material accounts for 5% -20% , The medium and trace elements other than sulfur account for 5% -45%; the preparation method is: heating the sulfur to a liquid state, adding the swelling material and the medium and trace elements other than sulfur to the liquid sulfur and mixing them uniformly to prepare a sulfur fertilizer mixed slurry Then, the sulfur fertilizer mixture slurry is pumped into the high tower granulation equipment. The sulfur fertilizer mixture slurry is sprayed out through the nozzle, falls in a spherical shape under the action of surface tension, exchanges heat with the air, and after cooling and solidification, round particles are obtained with high efficiency Concentration sulfur fertilizer.
所述中微量元素为含有硫、钙、镁、硅、铁、锰、铜、锌、硼、钼元素的单质、氧化物或无水化合物中的一种或二种以上的混合物。The medium trace element is one or a mixture of more than one element, oxide, or anhydrous compound containing sulfur, calcium, magnesium, silicon, iron, manganese, copper, zinc, boron, and molybdenum elements.
所述的溶胀材料为壳聚糖、纤维素、聚丙烯酸钠、聚丙烯酰胺、聚乙烯醇中的一种或二种以上的混合物。The swelling material is one or a mixture of two or more of chitosan, cellulose, sodium polyacrylate, polyacrylamide, and polyvinyl alcohol.
所述的溶胀材料的分子量为5000-100000。The molecular weight of the swollen material is 5000-100000.
所述中微量元素的溶解性分为两种：水易溶型和水难溶型。The solubility of the above trace elements is divided into two types: water-soluble type and water-insoluble type.
所述中微量元素中至少包含一种水易溶性物质。The medium and trace elements contain at least one water-soluble substance.
一种圆颗粒速效高浓度硫肥的生产方法，其特征在于按以下步骤进行:将固体硫磺加热熔融，在液态硫磺中添加硫之外的中微量元素和溶胀材料并混合均匀制备硫肥混合料浆，然后将硫肥混合料浆泵入高塔造粒设备，硫肥混合料浆通过喷头喷出，在表面张力的作用下以球状下落，与空气进行热交换，冷却凝固后得到圆颗粒速效高浓度硫肥。A production method of round particle quick-acting high-concentration sulfur fertilizer, which is characterized by the following steps: heating and melting solid sulfur, adding medium and trace elements other than sulfur and swelling material to liquid sulfur, and mixing to prepare sulfur fertilizer mixture The slurry of sulfur fertilizer is then pumped into the granulation equipment of high tower. The slurry of sulfur fertilizer is sprayed out through the spray head and falls in a spherical shape under the action of surface tension. It exchanges heat with the air, and after cooling and solidification, the round particles are quickly obtained. High concentration sulfur fertilizer.
硫肥混合料浆的温度控制在120-155℃。The temperature of the sulfur fertilizer mixed slurry is controlled at 120-155 ° C.
本发明的优点在于：1、硫肥为圆颗粒，且硫含量高，填补了市场无圆颗粒高浓度硫肥的空白；2、硫肥中添加溶胀材料，可快速崩解成硫磺微粒，加快作物对硫的吸收。3、可实现连续化规模化生产，能耗低，生产效率高，克服了当前高浓度硫肥工艺不连续及产能低下的问题；4、圆颗粒硫肥施用更加方便，可广泛应用于掺混肥中，且掺混均匀，效果好；5、硫肥中各营养元素间协同增效。The advantages of the present invention are as follows: 1. The sulfur fertilizer is round granules, and the sulfur content is high, which fills the gap of high concentration sulfur fertilizers without round granules in the market; 2. The swelling material is added to the sulfur fertilizer, which can quickly disintegrate into sulfur particles and accelerate Absorption of sulfur by crops. 3. It can realize continuous large-scale production, low energy consumption and high production efficiency, which overcomes the problems of current high-concentration sulfur fertilizer process discontinuity and low production capacity; 4. The application of round granular sulfur fertilizer is more convenient and can be widely used in blending In fertilizer, and blended evenly, the effect is good; 5. Synergistic effect among nutrients in sulfur fertilizer.
下面结合具体实施例对本发明作进一步说明，包括但不仅限于以下案例，以下实施例各物质按质量份计。The present invention will be further described below with reference to specific examples, including but not limited to the following cases, and the substances in the following examples are based on parts by mass.
实施例1Example 1
(1)将固态硫磺置于夹套反应釜中，用导热油加热至液态，分别加入氧化镁、氧化锌、硫酸铜、硼酸和分子量为50000的壳聚糖，各组分占比如下：50％硫、15％氧化镁、 10％氧化锌、10％无水硫酸铜、10％硼酸和5％分子量为50000的壳聚糖。(1) Put the solid sulfur in the jacketed reaction kettle, heat it to the liquid state with heat conduction oil, add magnesium oxide, zinc oxide, copper sulfate, boric acid and chitosan with a molecular weight of 50000, each component accounts for as follows: 50 % Sulfur, 15% magnesium oxide, 10% zinc oxide, 10% anhydrous copper sulfate, 10% boric acid, and 5% chitosan with a molecular weight of 50,000.
(2)将上述组分搅拌均匀，并控制硫肥混合料浆温度为120℃，泵入高塔造粒机中进行喷浆造粒，生产的圆颗粒速效高浓度硫肥，组成如下：(2) Stir the above components evenly, and control the temperature of the sulfur fertilizer mixture slurry to 120 ℃, pump it into a high tower granulator for spray granulation, and produce round granule quick-acting high-concentration sulfur fertilizer, the composition is as follows:
| A | 单质SElemental S | SO4 2- SO4 2- | 水难溶MgWater-insoluble Mg | 水难溶ZnWater-insoluble Zn | 水易溶CuWater soluble Cu | 水易溶BWater soluble B |
| 养分组成Nutrient composition | 50％50% | 6.0％6.0% | 9.0％9.0% | 8.0％8.0% | 4.0％4.0% | 1.75％1.75% |
本硫肥含有单质硫和硫酸根，同时含有镁、锌、铜和硼等中微量元素，各营养元素之间相互协同，实现极好的植物营养功能。This sulfur fertilizer contains elemental sulfur and sulfate, as well as trace elements such as magnesium, zinc, copper and boron. Each nutrient element cooperates with each other to achieve excellent plant nutritional functions.
实施例2Example 2
(1)将固态硫磺置于夹套反应釜中，用高压蒸汽加热至液态，分别加入硼酸和分子量为60000的纤维素，各组分占比如下：90％硫、5％硼酸和5％分子量为60000的纤维素。(1) Put solid sulfur in a jacketed reactor, heat it to liquid state with high-pressure steam, add boric acid and cellulose with a molecular weight of 60,000 respectively, and the components account for the following: 90% sulfur, 5% boric acid and 5% molecular weight It is 60,000 cellulose.
(2)将上述组分搅拌均匀，并控制混合料浆温度为155℃，泵入高塔造粒机中进行喷浆造粒，生产的圆颗粒速效高浓度硫肥，组成如下：(2) Stir the above components evenly, and control the temperature of the mixed slurry to 155 ℃, pump it into a high tower granulator for spray granulation, and produce round granules with quick-acting high-concentration sulfur fertilizer, the composition is as follows:
| A | 单质SElemental S | 水易溶BWater soluble B |
| 养分组成Nutrient composition | 90％90% | 0.87％0.87% |
硼对氮的吸收具有促进作用，可以提高氮素的利用率。同时，硫和氮之间也是协同作用，两者都是蛋白质成分，也是叶绿素形成不可或缺的，本含硼硫肥可以显著提高氮肥的利用率。Boron promotes the absorption of nitrogen and can increase the utilization rate of nitrogen. At the same time, sulfur and nitrogen are also synergistic. Both are protein components and are indispensable for chlorophyll formation. This boron-containing sulfur fertilizer can significantly improve the utilization rate of nitrogen fertilizer.
实施例3Example 3
(1)将固态硫磺置于夹套反应釜中，用电加热棒加热至液态，分别加入氧化镁、氧化锌、硫酸锰、分子量为100000的聚丙烯酰胺和分子量为60000的聚乙烯醇。各组分占比如下：60％硫、10％氧化镁、5％氧化锌、5％硫酸锰、10％分子量为100000聚丙烯酰胺和10％分子量为60000的聚乙烯醇。(1) Put solid sulfur in a jacketed reactor and heat it to a liquid state with an electric heating rod. Add magnesium oxide, zinc oxide, manganese sulfate, polyacrylamide with a molecular weight of 100,000, and polyvinyl alcohol with a molecular weight of 60,000. The components account for the following: 60% sulfur, 10% magnesium oxide, 5% zinc oxide, 5% manganese sulfate, 10% polyacrylamide with a molecular weight of 100,000 and polyvinyl alcohol with a molecular weight of 60,000.
(2)将上述组分搅拌均匀，并控制混合料浆温度为130℃，泵入高塔造粒机中进行喷浆造粒，生产的圆颗粒速效高浓度硫肥，组成如下：(2) Stir the above components evenly, and control the temperature of the mixed slurry to 130 ° C, pump it into a high tower granulator for spray granulation, and produce round granules with high-efficiency and high-concentration sulfur fertilizer. The composition is as follows:
| A | 单质SElemental S | SO4 2- SO4 2- | 水难溶MgWater-insoluble Mg | 水难溶ZnWater-insoluble Zn | 水易溶MnWater soluble Mn |
| 养分组成Nutrient composition | 60％60% | 3.2％3.2% | 6.0％6.0% | 4.0％4.0% | 1.8％1.8% |
本硫肥是含双效硫、镁、锌和锰的中微量元素肥料，尤其适用于对硫需求量比较大 的作物，如花生、豌豆、马铃薯、柑橘、甜菜等作物。This sulfur fertilizer is a medium and trace element fertilizer containing double-effect sulfur, magnesium, zinc, and manganese. It is especially suitable for crops with large demand for sulfur, such as peanuts, peas, potatoes, citrus, sugar beet and other crops.
实施例4Example 4
(1)将固态硫磺置于夹套反应釜中，用导热油加热至液态，分别加入偏硅酸钠、氧化锌和分子量为5000的聚丙烯酸钠，各组分占比如下：55％硫、25％偏硅酸钠、8％氧化锌和12％分子量为5000的聚丙烯酸钠。(1) Put the solid sulfur in the jacketed reaction kettle, heat it to the liquid state with the heat conduction oil, add sodium metasilicate, zinc oxide and sodium polyacrylate with molecular weight 5000 respectively, each component accounts for the following: 55% sulfur, 25% sodium metasilicate, 8% zinc oxide, and 12% sodium polyacrylate with a molecular weight of 5000.
(2)将上述组分搅拌均匀，并控制混合料浆温度为140℃，泵入高塔造粒机中进行喷浆造粒，生产的圆颗粒速效高浓度硫肥，组成如下：(2) Stir the above components evenly, and control the temperature of the mixed slurry to 140 ° C, pump it into a high tower granulator for spray granulation, and produce round granules with high-efficiency and high-concentration sulfur fertilizer. The composition is as follows:
| A | 单质SElemental S | 水难溶ZnWater-insoluble Zn | 水易溶SiWater soluble Si |
| 养分组成Nutrient composition | 55％55% | 6.4％6.4% | 5.7％5.7% |
本案例中生产的圆颗粒速效高浓度硫肥是含有硫、硅和锌的中微量元素新型肥料，可用于水稻种植过程中。硅是植物体组成的重要营养元素，被国际土壤界列为继氮、磷、钾之后的第四大元素。硅肥能提高作物对病虫害的抵抗力，减少各种病虫害的发生，作物吸收硅后，可在植物体内形成硅化细胞，使茎叶表层细胞壁加厚，角质层增加，形成一个坚固的保护层，使昆虫不易咬动，病菌难以入侵，也可以提高作物抗倒伏能力。水稻、小麦、玉米、花生、大豆、西瓜、果树、蔬菜等作物，施用硅肥后，一般可增产10％～25％。在硫和锌的协同之下，硅的作用更加显著。The round particle quick-acting high-concentration sulfur fertilizer produced in this case is a new fertilizer containing medium, trace elements such as sulfur, silicon and zinc, which can be used in the rice planting process. Silicon is an important nutrient element composed of plants, and is listed by the international soil community as the fourth largest element after nitrogen, phosphorus, and potassium. Silicon fertilizer can improve the resistance of crops to pests and diseases and reduce the occurrence of various pests and diseases. After the crops absorb silicon, they can form siliconized cells in the plant body, thicken the cell walls of the stem and leaf surface, and increase the cuticle, forming a strong protective layer. It is not easy for insects to bite, it is difficult for bacteria to invade, and it can also improve the lodging resistance of crops. Rice, wheat, corn, peanut, soybean, watermelon, fruit tree, vegetable and other crops, after applying silicon fertilizer, can generally increase production by 10% to 25%. Under the synergy of sulfur and zinc, the role of silicon is more significant.
Claims (8)
- 一种圆颗粒速效高浓度硫肥，各组分按质量百分比计，其特征在于：硫肥为圆颗粒状，硫肥中硫磺占比50％-90％，溶胀材料占比5％-20％，硫之外的中微量元素占比5％-45％；制备方法为：将硫磺加热至液态，在液态硫磺中添加溶胀材料和硫之外的中微量元素并混合均匀制备硫肥混合料浆，然后将硫肥混合料浆泵入高塔造粒设备，硫肥混合料浆通过喷头喷出，在表面张力的作用下以球状下落，与空气进行热交换，冷却凝固后得到圆颗粒速效高浓度硫肥。A round granule quick-acting high-concentration sulfur fertilizer, each component is calculated by mass percentage, characterized in that the sulfur fertilizer is in the form of round granules, the sulfur in the sulfur fertilizer accounts for 50% -90%, and the swelling material accounts for 5% -20% , The medium and trace elements other than sulfur account for 5% -45%; the preparation method is: heating the sulfur to a liquid state, adding the swelling material and the medium and trace elements other than sulfur to the liquid sulfur and mixing them uniformly to prepare a sulfur fertilizer mixed slurry Then, the sulfur fertilizer mixture slurry is pumped into the high tower granulation equipment. The sulfur fertilizer mixture slurry is sprayed out through the nozzle, falls in a spherical shape under the action of surface tension, exchanges heat with the air, and after cooling and solidification, round particles are obtained with high efficiency Concentration sulfur fertilizer.
- 如权利要求1所述的一种圆颗粒速效高浓度硫肥，其特征在于：所述中微量元素为含有硫、钙、镁、硅、铁、锰、铜、锌、硼、钼元素的单质、氧化物或无水化合物中的一种或二种以上的混合物。The round particle quick-acting high-concentration sulfur fertilizer according to claim 1, characterized in that the medium and trace elements are elements containing sulfur, calcium, magnesium, silicon, iron, manganese, copper, zinc, boron, and molybdenum , One or a mixture of two or more of oxides or anhydrous compounds.
- 如权利要求1所述的一种圆颗粒速效高浓度硫肥，其特征在于：所述的溶胀材料为壳聚糖、纤维素、聚丙烯酸钠、聚丙烯酰胺、聚乙烯醇中的一种或二种以上的混合物。The round particle quick-acting high-concentration sulfur fertilizer according to claim 1, wherein the swelling material is one of chitosan, cellulose, sodium polyacrylate, polyacrylamide, and polyvinyl alcohol or A mixture of two or more.
- 如权利要求3所述的一种圆颗粒速效高浓度硫肥，其特征在于：所述的溶胀材料的分子量为5000-100000。The round particle quick-acting high-concentration sulfur fertilizer according to claim 3, wherein the molecular weight of the swelling material is 5000-100000.
- 如权利要求1或2所述的一种圆颗粒速效高浓度硫肥，其特征在于:所述中微量元素的溶解性分为两种:水易溶型和水难溶型。The round particle quick-acting high-concentration sulfur fertilizer according to claim 1 or 2, wherein the solubility of the middle and trace elements is divided into two types: water-soluble type and water-insoluble type.
- 如权利要求5所述的一种圆颗粒速效高浓度硫肥，其特征在于：所述中微量元素中至少包含一种水易溶性物质。The round particle quick-acting high-concentration sulfur fertilizer according to claim 5, wherein the medium and trace elements contain at least one water-soluble substance.
- 一种如权利要求1-6之一所述的圆颗粒速效高浓度硫肥的生产方法，其特征在于按以下步骤进行:将固体硫磺加热熔融，在液态硫磺中添加硫之外的中微量元素和溶胀材料并混合均匀制备硫肥混合料浆，然后将硫肥混合料浆泵入高塔造粒设备，硫肥混合料浆通过喷头喷出，在表面张力的作用下以球状下落，与空气进行热交换，冷却凝固后得到圆颗粒速效高浓度硫肥。A method for producing round particle quick-acting high-concentration sulfur fertilizer according to any one of claims 1 to 6, characterized in that it is carried out as follows: heating and melting solid sulfur, and adding medium and trace elements other than sulfur to liquid sulfur And swell the material and mix evenly to prepare the sulfur fertilizer mixture slurry, and then pump the sulfur fertilizer mixture slurry into the high tower granulation equipment, the sulfur fertilizer mixture slurry is sprayed out through the nozzle, and falls in a spherical shape under the action of surface tension, and the air After heat exchange, after cooling and solidification, round particle quick-acting high-concentration sulfur fertilizer is obtained.
- 如权利要求7所述的一种圆颗粒速效高浓度硫肥的生产方法，其特征在于：硫肥混合料浆的温度控制在120-155℃。The method for producing round particle quick-acting high-concentration sulfur fertilizer according to claim 7, characterized in that the temperature of the sulfur fertilizer mixed slurry is controlled at 120-155 ° C.
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| CN110734337A (en) * | 2019-11-27 | 2020-01-31 | 湖北富邦科技股份有限公司 | high-water-absorption medium-trace element mixing agent and application thereof |
| CN112142516B (en) * | 2020-09-28 | 2022-05-03 | 湖北富邦科技股份有限公司 | Rapidly disintegrating sulfur granule composition and preparation method thereof |
| CN112479784A (en) * | 2020-12-02 | 2021-03-12 | 沈阳农业大学 | High-concentration sulfur-based granular fertilizer and preparation method thereof |
| CN112645759A (en) * | 2020-12-31 | 2021-04-13 | 湖北富邦科技股份有限公司 | Medium trace element granular fertilizer and preparation method thereof |
| CN113717004A (en) * | 2021-09-23 | 2021-11-30 | 湖北富邦科技股份有限公司 | Drying-free production method of silicate-containing sandy fertilizer |
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| US8801827B2 (en) * | 2012-10-22 | 2014-08-12 | Tiger-Sul Products (Canada) Co. | Fertilizer composition containing sulfur and boron |
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| WO2008024007A2 (en) * | 2006-08-25 | 2008-02-28 | Zaklady Chemiczne 'siarkopol' Tarnobrzeg Sp Z O.O. | Sulphur fertilizer and granulated sulphur fertilizer manufacturing method |
| CN101798254A (en) * | 2009-12-31 | 2010-08-11 | 北京荷丰远东技术有限公司 | System and method for producing sulfur-contained urea by high tower |
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