CN102977891A - Soil conditioner produced from ardealite as well as producing method and using method of soil conditioner - Google Patents
Soil conditioner produced from ardealite as well as producing method and using method of soil conditioner Download PDFInfo
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- CN102977891A CN102977891A CN201210522182XA CN201210522182A CN102977891A CN 102977891 A CN102977891 A CN 102977891A CN 201210522182X A CN201210522182X A CN 201210522182XA CN 201210522182 A CN201210522182 A CN 201210522182A CN 102977891 A CN102977891 A CN 102977891A
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Abstract
The invention discloses a soil conditioner produced from ardealite as well as a producing method and a using method of the soil conditioner. The soil conditioner contains ardealite, humic acid, ferrous sulfate, urea and sulfuric acid which are mixed and shaped to granules. The soil conditioner is produced from ardealite which is the main raw material and added with a certain amount of nutrient elements and has the characteristics of conditioning the soil structure, adjusting pH of soil, activating the activity of nutrient elements of the soil, supplementing trace elements such as calcium, sulphur, ferrum and zinc in the soil, and the like; and the soil conditioner is suitable to conditioning of saline-alkali soil. The soil conditioner has the advantages of lowering the pH of surface soil, the content of water-soluble Na<+> and exchangeable Na<+> in the soil, the alkalisation degree and the volume weight of the soil, and enhancing the soil infiltration, the utilization rate of fertilizers and the soil productivity. A method for conditioning saline-alkali land, which is effective, economical, practical and consistent with the actual situations, is successfully proposed.
Description
Technical field
The present invention relates to the new way that a kind of phosphogypsum utilizes, particularly prepare the method for alkaline land modifying agent take phosphogypsum as raw material.
Background technology
Phosphogypsum is the byproduct of phophatic fertilizer production process, the improvement of phosphogypsum and to utilize problem be a global difficult problem.China is as first production of phosphate fertilizer state in the world, also is simultaneously first phosphogypsum by-product state.It is reported, present many large-scale phosphatic fertilizer companies that are located in the mountain area, because the phosphogypsum generation is huge, the market capacity of phosphogypsum comprehensive utilization product is limited, also can't accomplish in a short time phosphogypsum is all utilized, and can only adopt air storage to process.Domestic small business adopts dry cinder discharging mostly, the way that stack on the level land.Large-scale phosphatic fertilizer company adopts wet-process deslagging, and the stacking of building a dam in the mountain valley is built pipeline collection backwater and recycled.Because volume of cargo in storage is very large, takies a large amount of soils, it is exactly an important factor that restricts industry development that phosphogypsum is processed early.According to incompletely statistics, the domestic phosphogypsum slag of storing up reaches more than 100,000,000 ton at present, also will newly produce tens million of tons every year.Remove comprehensive utilization about 10% outside, also have 90% phosphogypsum slag will do discarded the stacking and process.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of phosphogypsum that effectively utilizes to be soil improvement agent and the manufacture method thereof of raw material production for above-mentioned the deficiencies in the prior art and shortcoming, to reach the improvement Soil structure, regulates soil pH, increases the purposes such as soil fertility.
For reaching above-mentioned technique effect, the present invention adopts following technical scheme:
A kind of soil improvement agent take phosphogypsum as raw material production is mixed by the raw material of following proportioning and is shaped to the particulate state preparation:
Phosphogypsum 60%-65%, humic acid 18%-23%, ferrous sulfate 7%-12%, urea 3%-7%, zinc sulfate 1%-2%.
A kind of production is the method for soil improvement agent as claimed in claim 1, comprises taking by weighing quantitative material by granulation-drying-cooling screening-anti-caking agent packing and storing of filming-weigh.
Preferably, pass into steam in the described material granulation process, control humidity of materials 15%-25%, 20 ℃-30 ℃ of temperature.
Preferably, described drying is hot-air dry, 120 ℃-130 ℃ of technological temperatures, and exhaust temperature is less than 60 ℃.
Preferably, described cooling screening coldly goes or turns round method of cooling to be cooled to normal temperature by overturning, and getting particle diameter by classification sieve is that the material of 2.2mm-4.75mm is qualified material, and sizing screen comprises the two-stage sub-sieve, the first sieve aperture is 4.75mm, and the second sieve aperture is 2.2mm.
Preferably, the usage quantity of described anti-caking agent is the 0.5%-1.0% of weight of material.
Preferably, increase dust collecting process in the described manufacturing process, comprise the washing of gravity settling and flue dust, the dust periodic cleaning of gravity settling is collected and is delivered to settling bowl, and flue dust enters settling bowl after washing, and the material of collecting in the settling bowl is sent to granulating system.
A kind of use is the method for soil improvement agent as claimed in claim 1: apply in soil surface after ploughing deeply the saltings, plough flat getting final product.
Preferably, the amount of application of soil improvement agent is: the 100-200 kg/ mus such as grain, vegetables, lawn; Fruit tree 200-400 kg/ mu; The soil of harden, salinization is serious, 800-1000 kg/ mu.
Preferably, the time of application of soil improvement agent is
:Fill with autumn plough deeply ground before the winter water after, or before each irrigation of crop growth phase, apply.
Beneficial effect of the present invention:
The present invention discloses a kind of soil improvement agent and manufacture method thereof take phosphogypsum as raw material production, soil improvement agent comprises that phosphogypsum, humic acid, ferrous sulfate, urea and sulfuric acid mixing moulding are particulate state, the present invention is take phosphogypsum as main raw material, add a certain amount of nutritive element, have the characteristics such as improvement Soil structure, adjusting soil pH, activation soil nutrient elements activity and additional Trace Elements in Soil calcium, sulphur, iron, zinc, be fit to the salt affected soil improvement.Can make topsoil soils pH reduce soil water dissolubility Na
+With exchangeability Na
+Content, the alkalization of soils degree reduces, and the soil weight alleviates, and soil infiltration capability improves, and utilization rate of fertilizer improves, and fertility improves.Successfully search out the effective ways of convenient, economic, practical, the alkaline land improving that tallies with the actual situation.
Embodiment
In the soil improvement agent production equipment of urn good fortune chemical industry, produce according to the proportioning raw materials of following table; each component all is weight percentage in the following table; because produce and to carry out in production line, so the production process of following table is take 100 tons of the finished product as the single production example.
Embodiment 1
Preparing 100 tons of raw materials according to the weight percent of proportioning 1 produces; send in the tablets press after mixing of materials is even; pass into simultaneously steam; controlling moisture is 15%-20%; 20 ℃-25 ℃ of temperature; granulation is carried out hot-air dry after finishing, and technological temperature is controlled at 120 ℃-124 ℃, and exhaust temperature is less than 60 ℃.Granule materials carries out changing the upset cooler over to after the drying in rotary shelf drier; carry out the two-stage screening after being cooled to normal temperature; first step sieve aperture is 4.75mm; macrobead is screened out and pulverizes; first step qualified material is carried out second stage screening, and second stage sieve aperture is 2.2mm, is again sent into tablets press with the first step by comminuting matter less than the material of 2.2mm sifting out particle diameter; screening qualified material in the second stage changes coating system over to carries out the anti-caking agent and films, and anti-caking agent usage quantity is 0.5% of product weight.The material that finishes of the filming packing and storing of weighing.
Embodiment 2
Prepare 100 tons of raw materials according to the weight percent of proportioning 2 and produce, production process is with embodiment 1, and its difference only is to pass into the steam of tablets press; controlling moisture 16%-23%; 25 ℃-30 ℃ of temperature, 122 ℃-128 ℃ of hot-air dry temperature, anti-caking agent usage quantity is 0.7% of product weight.
Embodiment 3
Prepare 100 tons of raw materials according to the weight percent of proportioning 2 and produce, production process is with embodiment 1, and its difference only is to pass into the steam of tablets press; controlling moisture 16%-25%; 22 ℃-26 ℃ of temperature, 125 ℃-130 ℃ of hot-air dry temperature, anti-caking agent usage quantity is 0.7% of product weight.
Embodiment 4
Prepare 100 tons of raw materials according to the weight percent of proportioning 2 and produce, production process is with embodiment 1, and its difference only is to pass into the steam of tablets press; controlling moisture 19%-23%; 24 ℃-28 ℃ of temperature, 123 ℃-127 ℃ of hot-air dry temperature, anti-caking agent usage quantity is 0.9% of product weight.
Embodiment 5
Prepare 100 tons of raw materials according to the weight percent of proportioning 2 and produce, production process is with embodiment 1, and its difference only is to pass into the steam of tablets press; controlling moisture 20%-25%; 25 ℃-30 ℃ of temperature, 120 ℃-130 ℃ of hot-air dry temperature, anti-caking agent usage quantity is 1.0% of product weight.
Embodiment 6
Prepare 100 tons of raw materials according to the weight percent of proportioning 2 and produce, production process is with embodiment 1, and its difference only is to pass into the steam of tablets press; controlling moisture 17%-22%; 21 ℃-26 ℃ of temperature, 123 ℃-126 ℃ of hot-air dry temperature, anti-caking agent usage quantity is 0.8% of product weight.
Equipment dry and cooling can be selected and convertiblely also can use rotary type in the above-described embodiments, in the production process of system, can produce the dust of large content of starting materials, can set up dust removal installation and carry out dust removal operation, select tornado dust collector, gravity settling chamber, washing filtering 3-stage dust-removal, tornado dust collector are arranged on the return conveyer top, but the material retrieval system of regaining continues to produce, the material periodic cleaning that gravity falling dust room collects, the dust of minute quantity can be cleaned out in washing process in the tail gas after the two-stage dedusting.The isolated dust periodic cleaning of gravity settling chamber; After the isolated dust of washing tower enters the settling bowl precipitation, can be transported to rotary drum granulator by vertical shurry pump and go granulation.The washings of clarification continues transported to washing tower washing dust-containing tail gas through fluoroplastic pump, then flows into settling bowl, so circulation.
Product of the present invention shows that by using continuously behind the potted plant lab scale to monitor afterwards in 2 years pH reduces 0.2-0.4 unit on the alkaline land soil of Qinan County, Gansu Province, exchangeable sodium reduces by 9.1%, and basicity reduces by 19.9%.Used 2 years continuously on the corn of Jingyuan County, Pingchuan District and sunflower, the Soil Desalting rate reaches 6.16-28.88%, and soil pH reduces 0.38-0.74 unit, and the corn yield increasing rate reaches 15.9-19.88%, and the sunflower stimulation ratio reaches 12.3-13.5%.Test in the Jinchang City saltings, wheat increase yield 22.6%, barley production promoting are 25.2%, corn yield increasing is 25.9%, the potato volume increase is 42.9%, and economic benefit is fairly obvious.Through above regional field experiment and data tracking, this modifying agent product is suitable for salinized soil; Contain simultaneously a small amount of nutrient, but complete replacing fertilizer, this product of recommend use on local habits fertilization basis.
Duration of service: after ploughing deeply ground, apply in soil surface, raking gets final product.Amount of application: on local habits fertilization basis, the 100-200 kg/ mus such as grain, vegetables, lawn; Fruit tree 200-400 kg/ mu; The soil of harden, salinization is serious, recommend use amount 800-1000 kg/ mu.
Time of application: fill with autumn plough deeply ground before the winter water after, spread and soil surface, the rear irrigation of raking gets final product; Also each recommendation amount 100kg/ mu can be spread fertilizer over the fields before each irrigation of crop growth phase.
Show by the scientific payoffs such as field experiment and data tracking for many years: use 200～400kg soil improvement agent by every mu, can make topsoil soils pH reduce 0.2-0.4 unit, soil water dissolubility Na
+With exchangeability Na
+Content reduces respectively about 10%, and the alkalization of soils degree reduces 10-15%, and the soil weight alleviates 5%-10%, and soil infiltration capability improves 10%-20%, and utilization rate of fertilizer improves 15%-20%, and fertility improves about 15%.Successfully search out the effective measure of convenient, economic, practical, the alkaline land improving that tallies with the actual situation.Also start the new way of phosphogypsum comprehensive utilization.
Above-described only is preferred embodiment of the present invention.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the present invention, as the common practise of this area, can also make other equivalent modifications and improvement, also should be considered as protection scope of the present invention.
Claims (10)
1. soil improvement agent take phosphogypsum as raw material production is characterized in that: described soil improvement agent is mixed by the raw material of following proportioning and is shaped to the particulate state preparation:
Phosphogypsum 60%-65%, humic acid 18%-23%, ferrous sulfate 7%-12%, urea 3%-7%, zinc sulfate 1%-2%.
2. produce the as claimed in claim 1 method of soil improvement agent for one kind, comprise taking by weighing quantitative material by granulation-drying-cooling screening-anti-caking agent packing and storing of filming-weigh.
3. described a kind of production method of soil improvement agent as claimed in claim 1 according to claim 2 is characterized in that: pass into steam in the described material granulation process, control humidity of materials 15%-25%, 20 ℃-30 ℃ of temperature.
4. described a kind of production method of soil improvement agent as claimed in claim 1 according to claim 2, it is characterized in that: described drying is hot-air dry, 120 ℃-130 ℃ of technological temperatures, exhaust temperature is less than 60 ℃.
5. described a kind of production method of soil improvement agent as claimed in claim 1 according to claim 2, it is characterized in that: described cooling screening coldly goes or turns round method of cooling to be cooled to normal temperature by overturning, getting particle diameter by classification sieve is that the material of 2.2mm-4.75mm is qualified material, sizing screen comprises the two-stage sub-sieve, the first sieve aperture is 4.75mm, and the second sieve aperture is 2.2mm.
6. described a kind of production method of soil improvement agent as claimed in claim 1 according to claim 2, it is characterized in that: preferred, the usage quantity of described anti-caking agent is the 0.5%-1.0% of weight of material.
7. described a kind of production method of soil improvement agent as claimed in claim 1 according to claim 2, it is characterized in that: increase dust removal step in the described manufacturing process, comprise the washing of gravity settling and flue dust, the dust periodic cleaning of gravity settling is collected and is delivered to settling bowl, flue dust enters settling bowl after washing, the material of collecting in the settling bowl is sent to granulating system.
8. one kind is used the as claimed in claim 1 method of soil improvement agent: apply in soil surface after ploughing deeply the saltings, plough flat getting final product.
9. described a kind of use method of soil improvement agent as claimed in claim 1 according to claim 8, it is characterized in that: the amount of application of soil improvement agent is: the 100-200 kg/ mus such as grain, vegetables, lawn; Fruit tree 200-400 kg/ mu; The soil of harden, salinization is serious, 800-1000 kg/ mu.
10. described a kind of use method of soil improvement agent as claimed in claim 1 according to claim 8, it is characterized in that: the time of application of soil improvement agent is
:Fill with autumn plough deeply ground before the winter water after, or before each irrigation of crop growth phase, apply.
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| CN201210522182XA CN102977891A (en) | 2012-12-07 | 2012-12-07 | Soil conditioner produced from ardealite as well as producing method and using method of soil conditioner |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289705A (en) * | 2013-05-10 | 2013-09-11 | 甘肃省农业科学院土壤肥料与节水农业研究所 | Nano saline alkali soil improvement agent and preparation technology thereof |
| CN103493643A (en) * | 2013-10-11 | 2014-01-08 | 中国科学院南京土壤研究所 | Special fertilizer-phosphogypsum combined application method for planting coastal saline-alkali soil rice |
| CN104770151A (en) * | 2014-01-15 | 2015-07-15 | 江苏省中国科学院植物研究所 | Simplified planting method for coastal severe saline-alkali soil salt-resistant bermuda grass lawn |
| CN105218266A (en) * | 2015-08-07 | 2016-01-06 | 安徽新中远化工科技有限公司 | A kind of phosphogypsum soil improvement agent improving Soil Nitrogen Content and preparation method thereof |
| CN105237267A (en) * | 2015-08-07 | 2016-01-13 | 安徽新中远化工科技有限公司 | Phosphogypsum soil conditioner capable of reducing heavy metal pollution and preparation method thereof |
| US10017906B2 (en) | 2015-07-29 | 2018-07-10 | Uniwersytet Wroclawski | Stabilizing composition to stabilize clay land and clay soils, its method of manufacture and stabilization of clay land and clay soils |
| CN108752141A (en) * | 2018-08-30 | 2018-11-06 | 宜城市农丰化工有限公司 | The technique for producing secondary nutrients using ardealite |
| CN108967110A (en) * | 2018-07-26 | 2018-12-11 | 思南县华丰果蔬专业合作社 | A kind of cultural method of salt-soda soil peach |
| CN110684536A (en) * | 2018-07-06 | 2020-01-14 | 中化重庆涪陵化工有限公司 | Phosphogypsum micron soil conditioner and preparation method thereof |
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| CN101157585A (en) * | 2006-09-20 | 2008-04-09 | 内蒙古辽中京化工有限责任公司 | Organic nitrogenous fertilizer |
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| CN101157585A (en) * | 2006-09-20 | 2008-04-09 | 内蒙古辽中京化工有限责任公司 | Organic nitrogenous fertilizer |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289705A (en) * | 2013-05-10 | 2013-09-11 | 甘肃省农业科学院土壤肥料与节水农业研究所 | Nano saline alkali soil improvement agent and preparation technology thereof |
| CN103289705B (en) * | 2013-05-10 | 2017-09-05 | 甘肃省农业科学院土壤肥料与节水农业研究所 | A kind of Nano saline alkali soil improvement agent and its preparation technology |
| CN103493643A (en) * | 2013-10-11 | 2014-01-08 | 中国科学院南京土壤研究所 | Special fertilizer-phosphogypsum combined application method for planting coastal saline-alkali soil rice |
| CN104770151A (en) * | 2014-01-15 | 2015-07-15 | 江苏省中国科学院植物研究所 | Simplified planting method for coastal severe saline-alkali soil salt-resistant bermuda grass lawn |
| CN104770151B (en) * | 2014-01-15 | 2018-05-08 | 江苏省中国科学院植物研究所 | The light of strand heavy salinized ground salt-resistant type bermuda grass turf simplifies planting and establishing method |
| US10017906B2 (en) | 2015-07-29 | 2018-07-10 | Uniwersytet Wroclawski | Stabilizing composition to stabilize clay land and clay soils, its method of manufacture and stabilization of clay land and clay soils |
| CN105218266A (en) * | 2015-08-07 | 2016-01-06 | 安徽新中远化工科技有限公司 | A kind of phosphogypsum soil improvement agent improving Soil Nitrogen Content and preparation method thereof |
| CN105237267A (en) * | 2015-08-07 | 2016-01-13 | 安徽新中远化工科技有限公司 | Phosphogypsum soil conditioner capable of reducing heavy metal pollution and preparation method thereof |
| CN110684536A (en) * | 2018-07-06 | 2020-01-14 | 中化重庆涪陵化工有限公司 | Phosphogypsum micron soil conditioner and preparation method thereof |
| CN108967110A (en) * | 2018-07-26 | 2018-12-11 | 思南县华丰果蔬专业合作社 | A kind of cultural method of salt-soda soil peach |
| CN108752141A (en) * | 2018-08-30 | 2018-11-06 | 宜城市农丰化工有限公司 | The technique for producing secondary nutrients using ardealite |
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Application publication date: 20130320 |