CN101298393A - Potassium sulfate and magnesium sulfate fertilizer production process having extrusion prilling step and no drying step - Google Patents
Potassium sulfate and magnesium sulfate fertilizer production process having extrusion prilling step and no drying step Download PDFInfo
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- CN101298393A CN101298393A CNA2008100169207A CN200810016920A CN101298393A CN 101298393 A CN101298393 A CN 101298393A CN A2008100169207 A CNA2008100169207 A CN A2008100169207A CN 200810016920 A CN200810016920 A CN 200810016920A CN 101298393 A CN101298393 A CN 101298393A
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Abstract
The invention relates to a technique for manufacturing magnesium potassium sulfate fertilizer by extrusion pelleting with no drying, which is characterized by: mixing lemery, anhydrous magnesium sulfate, water retention agent as well as medium elements and microelements according to the weight portions of 46:35:0.6:18.4; transmitting the mixture to a feed hopper after being fully stirred, then packaging the mixture into a finished product by rolling, cutting up, pelleting and sieving; the medium elements and the microelements include: zeolite powder, borax, zinc sulfate, bluestone and green copperas which are uniformly mixed according to the weight portions of 10 to 20: 1 to 3: 1 to 2.5: 0.1 to 1.5 : 0.1 to 1. The invention adopts the technique of extrusion pelleting and is added with a drought control water retention growth promoting agent; the produced multi-element magnesium potassium sulfate water retention fertilizer has the advantages of slow nutrient release, high fertilizer operating factor, easing resource shortage, reducing soil nutrient losing, protecting the underground water environment as well as being safe and environment protective. During the whole manufacture process, no water and no drying processes are educed, thus reducing power consumption and coal consumption during the drying and cooling processes; no contaminations of the three wastes are discharged during the manufacture process.
Description
Technical field
The present invention relates to a kind of production technique of potash magnesium sulphate fertilizer, specifically a kind of extruder grain no drying is produced the technology of potash magnesium sulphate fertilizer.
Background technology
The potassium element.Along with improving constantly of crop yield and nitrogen, phosphate fertilizer consumption, the potassium amount that crop removes from soil increases gradually, and with fertilizer, straw-returning with use forms such as containing potassium fertilizer and give back the amount of soil and can not supply the remove amount of crop from soil, China's soil potassium wanes gradually.Entered since the eighties in 20th century, potassium plain revenue and expenditure in the northern area of China farmland is seriously uneven, potash fertilizer is under-supply, the fertilizer consumption descends, promoting the use of of the too little and high-yield variety of straw-returning ratio increased requirement and the remove amount of crop to the potassium element, and plain exhaustion of potassium is on the rise in the northern China soil, soil potassium deficiency area enlarges gradually, has become the limiting factor that agriculture production further develops in some areas.
The magnesium element.Magnesium is the important composition composition of making the object inner chlorophyll, plays an important role in plant nutrition.Simultaneously, magnesium still is the indispensable element of human body.In the plant, the source of nutrition of magnesium mainly is a soil, its supply rich lack to remove with soil acidity, soil in ion form and outside the Pass the soil cation exchange capacity has, with effectively the content of magnesium is the closest in the soil.In recent years, along with using of nitrogen, phosphorus, potassium fertilizer, crop yield improves constantly, and the magnesium that plant carries off from soil is plain constantly to be increased, and since in the soil magnesium element can not get effectively replenishing, plant magnesium deficiency phenomenon occurs successively in various places.
Thionin.Thionin also is the bigger element of crop demand, and its demand and phosphorus are suitable.Sulphur plays an important role to crop protein, grease, little living element and the synthetic of some enzyme.Sulphur can be promoted the cold-resistant and drought resistance of crop, and a lack of sulfur not only reduces the output of product, but also can reduce quality product.
Thus, potash magnesium sulphate fertilizer worldwide is widely used.According to relevant introduction, in the U.S., the annual amount of application of potash magnesium sulphate fertilizer also is used for composite fertilizer factory in a large number at the hundreds of thousands of ton except that directly using, and is special-purpose fertile according to the soil content and the preparation of crop situation on each farm.
Yet along with a large amount of uses of nitrogen, phosphorus, potassium three major fertilizer, the shortage of moderate-element in the soil and trace element is on the rise.The fertilizer amount that is provided that reasonably applies fertilizer can satisfy the plant demand, can obtain maximum net return again.In fact, the effect of fertilizer is to make soil fertility be unlikely to become the limiting factor that obtains optimal economic output.According to the saying of Li Bixi law of minimum nourishment, after limiting factor nitrogen phosphorus potassium was eliminated, other factors or nutrient be mostly by the restriction crop yield that interacts, when for example nitrogen phosphorus potassium is in liberal supply, in, using of trace element may determine crop yield.
In sum, the nutrient of existing potassium magnesium sulfate fertilizer product is fixed, and it is little that prescription is regulated the space, is unfavorable for the balance of soil nutrient, and easily the moisture absorption is lumpd, and is difficult for storage.
Summary of the invention
The purpose of this invention is to provide a kind of extruder grain no drying and produce the technology of potash magnesium sulphate fertilizer, utilize the potash magnesium sulphate fertilizer of this explained hereafter balanced nutritious, sustained-release synergistic, energy-saving and emission-reduction, reduced investment, instant effect.
For achieving the above object, the present invention is by the following technical solutions:
Extruder grain no drying of the present invention is produced the technology of potash magnesium sulphate fertilizer, it is characterized in that: comprise the steps:
1, get the raw materials ready, with vitriolate of tartar, five water magnesium sulfates, water-holding agent and in, trace element mixes according to the ratio of weight and number of 40-55: 30-45: 0.1-1: 14-20, and fully, evenly stir;
2, roll sheet, the material that stirs is rolled sheet, the forming pressure of rolling sheet is: 15-30Mpa; Powder rolling thickness: 2-8mm;
3, step 2 products therefrom is shredded in chopping;
4, whole grain, with the whole grain of the product after the chopping, broken whole granularity is: 2-5 mm;
5, screening, the product of screening step 4, the granulated product that sieves out is the potassium magnesium sulfate fertilizer product, and the on-granulated product reclaims as raw material.
In described, trace element comprises: zeolite powder, borax, zinc sulfate, copper sulfate, ferrous sulfate, they mix according to the ratio of weight and number of 10-20: 1-3: 1-2.5: 0.1-1.5: 0.1-1.
The present invention adopts extruder grain technology, and adds drought-resistant water-preserving growth promoter, the multielement potassium magnesium sulfate water conservation fertilizer product of production; nutrient discharges slowly, utilization rate of fertilizer is high, alleviate the resource anxiety; and the minimizing loss of soil nutrient, protection groundwater environment, safety and environmental protection.In addition, in whole process of production, no moisture is introduced, the no drying process, and produce at normal temperatures, no equipment which requires cooling has reduced power consumption, coal consumption in oven dry, the process of cooling, three-waste free pollution thing discharging in process of production.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1:
A kind of extruder grain no drying is produced the technology of potash magnesium sulphate fertilizer, comprises the steps:
1, get the raw materials ready, with vitriolate of tartar, five water magnesium sulfates, water-holding agent and in, trace element is according to 40: 45: 1: 14 ratio of weight and number mixes, and fully, evenly stir; Deliver to loading hopper with the material that chapelet stirs, material is delivered to the feeding serew loading hopper through loading hopper;
2, roll sheet, material is delivered to roll squeezer by the screw feeding bucket and is rolled sheet, the roll rotational speed of roll squeezer: 16rpm, main engine power: 22KW; Energy storage precharge pressure: 5Mpa; The forming pressure of rolling sheet is: 15Mpa; Powder rolling thickness: 8mm;
3, chopping is delivered to the knife mill chopping with step 2 products therefrom;
4, whole grain, with the whole grain of the product after the chopping, broken whole granularity is: 5mm;
5, screening, the product of screening step 4, the granulated product that sieves out is the potassium magnesium sulfate fertilizer product, and the on-granulated product reclaims as raw material.
In described, trace element comprises: zeolite powder, borax, zinc sulfate, copper sulfate, ferrous sulfate, they were according to 10: 3: 2.5: 1.5: 1 ratio of weight and number mixes.
Embodiment 2:
A kind of extruder grain no drying is produced the technology of potash magnesium sulphate fertilizer, comprises the steps:
1, get the raw materials ready, with vitriolate of tartar, five water magnesium sulfates, water-holding agent and in, trace element is according to 55: 30: 0.1: 14 ratio of weight and number mixes, and fully, evenly stir; Deliver to loading hopper with the material that chapelet stirs, material is delivered to the feeding serew loading hopper through loading hopper;
2, roll sheet, material is delivered to roll squeezer by the screw feeding bucket and is rolled sheet, the roll rotational speed of roll squeezer: 24rpm, main engine power: 30KW; Energy storage precharge pressure: 8Mpa; The forming pressure of rolling sheet is: 30Mpa; Powder rolling thickness: 2mm;
3, chopping is delivered to the knife mill chopping with step 2 products therefrom;
4, whole grain, with the whole grain of the product after the chopping, broken whole granularity is: 2mm;
5, screening, the product of screening step 4, the granulated product that sieves out is the potassium magnesium sulfate fertilizer product, and the on-granulated product reclaims as raw material.
In described, trace element comprises: zeolite powder, borax, zinc sulfate, copper sulfate, ferrous sulfate, they were according to 20: 1: 1: 0.1: 0.1 ratio of weight and number mixes.
Embodiment 3:
A kind of extruder grain no drying is produced the technology of potash magnesium sulphate fertilizer, and key step is as follows:
1, get the raw materials ready, with vitriolate of tartar, five water magnesium sulfates, water-holding agent and in, trace element is according to 46: 35: 0.6: 18.4 parts by weight mix, and full and uniform stirring; Deliver to loading hopper with the material that chapelet stirs, material is delivered to the feeding serew loading hopper through loading hopper;
2, roll sheet, material is delivered to roll squeezer by the screw feeding bucket and is rolled sheet, the roll rotational speed of roll squeezer: 30rpm, main engine power: 30KW; Energy storage precharge pressure: 8Mpa; Forming pressure: 30 Mpa; Powder rolling thickness: 2mm;
3, chopping is delivered to the knife mill chopping with step 2 products therefrom;
4, whole grain, with the whole grain of the product after the chopping, broken whole granularity is: 2mm;
5, screening, with the product of bolting step 4, the granulated product that sieves out is the potassium magnesium sulfate fertilizer product, and the on-granulated product reclaims as raw material.
In above-mentioned, trace element comprises: zeolite powder, borax, zinc sulfate, copper sulfate, ferrous sulfate, they were according to 14: 1.6: 1.4: 0.9: 0.5 ratio of weight and number mixes.
The above-mentioned sheet, particle, whole grain, sieving technology of rolling is prior art, do not repeat them here.
Water-holding agent is a kind of nontoxic nonirritant, non-corrosiveness product, and degraded product is ammonia, carbonic acid gas, water and potassium ion, physics, stable chemical performance, under physical environment, can not react, can prolonged and repeated suction discharge water, self is degraded slowly, and soil is gained everything and lose nothing.It is of a great variety, mainly contains: 1, starch grafting type comprises methylolation starch, organic phosphate starch and starch xanthate etc.2, fiber series comprises cellulose graft, carboxy methyl cellulose, hydroxypropylation fiber and xanthation Mierocrystalline cellulose etc.3, synthetic polymer series comprises polyacrylate, polyvinyl alcohol, polyoxygenated alkanes and inorganic polymer class etc.4, protein series comprises soybean protein, silk-protein class and gluten class etc.5, other series comprises pectin, alginic acid, chitosan etc.6, mix series, the mixture of various different classes of water-holding agents.
Select water-holding agent, the several problems that should note at agriculture field: 1, covet high suction multiple and speed, ignore the validity and the gel-strength of its stability, water conservation.2, use disadvantageous, the labile sodium-ion type water-holding agent of crop and soil product in a large number for a long time, can cause P in soil H value to raise, alkali-affected soil, destruction Soil structure.3, consider the nutritional requirement of crop root growth and the influence of use Water Retaining Agent on Soil ventilation property.
In sum, the present invention selects the high molecular polymer with super-strong moisture absorbing water conservation and releasability for use, i.e. drought-resistant water-preserving growth promoter, and its main component is polyacrylate and polyacrylamide interpolymer.It is deionized water, tens of times of saliferous moisture nearly a hundred times of hundred times of specific absorption self tuples rapidly, becoming can rapid absorption, storage, slowly discharge " the little reservoir " of moisture and nutrient, and effectively reduce the seepage of irrigation water or rainwater, the evaporation of control soil moisture, can satisfy the growth needs of crop, the promotion plant root growth is grown, and has functions such as the Soil structure of improvement, increase soil activation, minimizing soil compaction, raising utilization rate of fertilizer, raising crop yield.
Claims (2)
1, the extruder grain no drying is produced the technology of potash magnesium sulphate fertilizer, it is characterized in that: comprise the steps:
(1) get the raw materials ready, with vitriolate of tartar, five water magnesium sulfates, water-holding agent and in, trace element mixes according to the ratio of weight and number of 40-55: 30-45: 0.1-1: 14-20, and fully, evenly stir;
(2) roll sheet, the material that stirs is rolled sheet, the forming pressure of rolling sheet is: 15-30Mpa; Powder rolling thickness: 2-8mm;
(3) step (2) products therefrom is shredded in chopping;
(4) whole grain, with the whole grain of the product after the chopping, broken whole granularity is: 2-5mm;
(5) screening, the product of screening step (4), the granulated product that sieves out is the potassium magnesium sulfate fertilizer product, and the on-granulated product reclaims as raw material.
2, extruder grain no drying according to claim 1 is produced the technology of potash magnesium sulphate fertilizer, it is characterized in that: in described, trace element comprises: zeolite powder, borax, zinc sulfate, copper sulfate, ferrous sulfate, they mix according to the ratio of weight and number of 10-20: 1-3: 1-2.5: 0.1-1.5: 0.1-1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100169207A CN101298393A (en) | 2008-06-17 | 2008-06-17 | Potassium sulfate and magnesium sulfate fertilizer production process having extrusion prilling step and no drying step |
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| CNA2008100169207A CN101298393A (en) | 2008-06-17 | 2008-06-17 | Potassium sulfate and magnesium sulfate fertilizer production process having extrusion prilling step and no drying step |
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| CN101298393A true CN101298393A (en) | 2008-11-05 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844951A (en) * | 2009-03-24 | 2010-09-29 | 甘肃省农业科学院植物保护研究所 | Mineral potassium fertilizer recipe and production method |
| CN102584409A (en) * | 2012-03-27 | 2012-07-18 | 何勇 | Potash fertilizer |
| CN102850124A (en) * | 2012-09-04 | 2013-01-02 | 深圳市芭田生态工程股份有限公司 | Sulphate-potassium magnesium fertilizer and preparation method thereof |
| CN103113168A (en) * | 2013-03-20 | 2013-05-22 | 广西新方向化学工业有限公司 | Novel high-efficiency granule potash magnesium sulphate fertilizer and preparation method thereof |
| CN103172451A (en) * | 2013-04-17 | 2013-06-26 | 广西新方向化学工业有限公司 | Novel potash magnesium sulphate fertilizer and preparation method thereof |
| CN103910556A (en) * | 2013-10-31 | 2014-07-09 | 湖北景程化工有限公司 | Energy-saving environment-friendly production technology for compound fertilizer |
| EP2913106A4 (en) * | 2013-11-18 | 2017-03-01 | LG Chem, Ltd. | Catalyst for dehydration of glycerin, method for preparing same, and method for preparing acrolein |
| CN107365180A (en) * | 2017-05-25 | 2017-11-21 | 滕国清 | Manufacture the production method of potassium magnesium sulfate particle and the purposes of potassium magnesium sulfate particle |
| CN112624833A (en) * | 2020-12-29 | 2021-04-09 | 卡力(烟台)农业发展有限公司 | Boron-magnesium fertilizer and preparation method thereof |
-
2008
- 2008-06-17 CN CNA2008100169207A patent/CN101298393A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844951A (en) * | 2009-03-24 | 2010-09-29 | 甘肃省农业科学院植物保护研究所 | Mineral potassium fertilizer recipe and production method |
| CN102584409A (en) * | 2012-03-27 | 2012-07-18 | 何勇 | Potash fertilizer |
| CN102850124A (en) * | 2012-09-04 | 2013-01-02 | 深圳市芭田生态工程股份有限公司 | Sulphate-potassium magnesium fertilizer and preparation method thereof |
| CN103113168A (en) * | 2013-03-20 | 2013-05-22 | 广西新方向化学工业有限公司 | Novel high-efficiency granule potash magnesium sulphate fertilizer and preparation method thereof |
| CN103172451A (en) * | 2013-04-17 | 2013-06-26 | 广西新方向化学工业有限公司 | Novel potash magnesium sulphate fertilizer and preparation method thereof |
| CN103910556A (en) * | 2013-10-31 | 2014-07-09 | 湖北景程化工有限公司 | Energy-saving environment-friendly production technology for compound fertilizer |
| CN103910556B (en) * | 2013-10-31 | 2016-04-27 | 湖北景程化工有限公司 | Energy saving and environment friendly Compound fertilizer production technology |
| EP2913106A4 (en) * | 2013-11-18 | 2017-03-01 | LG Chem, Ltd. | Catalyst for dehydration of glycerin, method for preparing same, and method for preparing acrolein |
| CN107365180A (en) * | 2017-05-25 | 2017-11-21 | 滕国清 | Manufacture the production method of potassium magnesium sulfate particle and the purposes of potassium magnesium sulfate particle |
| CN112624833A (en) * | 2020-12-29 | 2021-04-09 | 卡力(烟台)农业发展有限公司 | Boron-magnesium fertilizer and preparation method thereof |
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