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CN104140304A - A method of preparing sulfur-diammonium phosphate by adopting an acid tubular reactor - Google Patents

A method of preparing sulfur-diammonium phosphate by adopting an acid tubular reactor Download PDF

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Publication number
CN104140304A
CN104140304A CN201310162228.6A CN201310162228A CN104140304A CN 104140304 A CN104140304 A CN 104140304A CN 201310162228 A CN201310162228 A CN 201310162228A CN 104140304 A CN104140304 A CN 104140304A
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CN
China
Prior art keywords
sulfuric acid
granulator
tablets press
controlled
sulfur
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.)
Pending
Application number
CN201310162228.6A
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Chinese (zh)
Inventor
周义新
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HUBEI MAOSHENG BIOLOGY Co Ltd
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HUBEI MAOSHENG BIOLOGY Co Ltd
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Publication date
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Priority to CN201310162228.6A priority Critical patent/CN104140304A/en
Publication of CN104140304A publication Critical patent/CN104140304A/en
Pending legal-status Critical Current

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Abstract

The invention relates to the field of sulfur-diammonium phosphate and provides a method of preparing sulfur-diammonium phosphate by adopting an acid tubular reactor. The method is characterized in that: raw materials containing nitrogen, phosphor, sulfur, calcium and other elements are weighed by an automatic weighing batch feeder according to a formula ratio, fed steadily into a smasher, mixed, and smashed into a material having a size not higher than 1 mm; the qualified smashed material is required to be 70% of the total materials; the material is fed into a rotor drum granulator by a conveyer belt; in the granulator, sulfuric acid and washing water, which are diluted by the acid tubular reactor, are sprayed onto the solid material in the granulator, and liquid ammonia is injected by an embedded spray tube and reacted with the sulfuric acid in the solid material in the granulator and participates in granulation; and packaging and stacking are performed finally by an automatic packaging machine and a robot stacking system. By adoption of the technical scheme, the method has characteristics of simple structure and using safety, omits a sulfuric acid diluting tank, a sulfuric acid pump, an enamel reaction kettle, and other equipment, and largely saves the equipment cost.

Description

A kind of method that adopts acid tube reactor to prepare sulphur phosphorus two ammoniums
Technical field
The present invention relates to sulphur phosphorus two ammonium fields, is a kind of method that adopts acid tube reactor to prepare sulphur phosphorus two ammoniums.
 
Background technology
Northern China soil generally lacks phosphorus, therefore peasant has the custom of application of phosphoric acid two ammoniums, conventionally the required phosphorus of farm crop is 8, and diammonium phosphate contains 40 more than phosphorus, excessive application of phosphoric acid two ammoniums make phosphorus content severe overweight in soil, in water-soluble phosphorus and soil, zinc reacts and produces the nonabsorbable zinc phosphate of farm crop, thus the disappearance of trace element in causing in soil, and disease and pest occurs.Sulphur phosphorus two ammoniums nitrogenous 18 that my company uses this technology to produce, phosphorous 20-26, sulfur-bearing, calcium 20-26, in general, 18-25 nitrogen are that crop growth is necessary, 20-26 phosphorus also just in time meets plant growth needs, sulphur, calcium is also the needed middle trace element of plant growth, this product can replace diammonium phosphate completely, diammonium phosphate has to the mesotrophy elements such as sulphur calcium to be rejected in order to pursue the high threshold values (industrial goods are the highest by 46%) of phosphorus, and in agriculture industrialization more and more deep today, sulphur and calcium have become increasingly the plant nutrition source that lacks.The peasant in many places has to spend high price to remove to buy the special product that supplements sulphur and calcium, has not only increased economic input, has also increased operating cost.Therefore, sulphur phosphorus two ammoniums, as a kind of relatively inexpensive polyelement composite fertilizer, also will play very important effect to the development of Chinese agriculture.
?
Summary of the invention
Object of the present invention is exactly that a kind of method that adopts acid tube reactor to prepare sulphur phosphorus two ammoniums will be provided.This method has overcome traditional propylhomoserin method and has produced that sulphur phosphorus two ammoniums are expensive, the shortcoming of high energy consumption, reduces costs to greatest extent.
Technical scheme of the present invention is: it is characterized in that by contain the pantogen such as nitrogen phosphate and sulfur, calcium material according to formula rate by the material of evenly sending into pulverizer after automatic weighing batch charger metering and carry out be broken into≤1 ㎜ of powder mix, pulverize qualified material and require to reach 70 ﹪ of total material; Material is in travelling belt enters rotary drum granulator, in tablets press, sulfuric acid and washing water are sprayed on the solid materials in tablets press after by acid tube reactor dilution, and liquefied ammonia, by burying a formula jet pipe ejection, participates in granulation with the sulfuric acid reaction in solid materials in tablets press; Prilling temperature is controlled at 65 DEG C-85 DEG C, pH value and is controlled between 5.8-6.2, and tablets press outlet material balling ratio should be in 80% left and right; Material enters dryer and dries, how many import and temperature outs are controlled according to urea content in formula, through twice cooling and three sub-sieve of a cooler, No. two coolers, particle temperature is controlled to normal temperature, the even finished particle that particle is greater than 2.5 ㎜, be less than 4.5 ㎜ sends into that finished product coating machine dyes and anti-caking processing, finally by automatic packing machine and robot palletizing system pack, piling.
Due to adopt technique scheme, have simple in structure, use safe feature, it has reduced the equipment such as sulfuric acid thinning tank, sulfuric acid pump, enamel reaction still, has greatly saved equipment cost.Present method is carried out diluting reaction by the vitriol oil and steam in acid tube reactor; sulfuric acid after dilution is above nozzle is sprayed on the tablets press bed of material; mix and react with pipe embedded typ liquefied ammonia; the chemical heat that reaction occurs is carried out granulation; material moisture is reduced; wherein temperature raising amplitude can reach 10-20 DEG C, thereby and not mainly improves and also greatly reduce energy consumption by steam.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1: each automatic weighing batch charger opening for feed numerical value is arranged as follows: 58% monoammonium phosphate 400kg, secondary calcium phosphate 80kg, urea 127 kg, 25% dry ammonia chloride 200kg, carbon ammonium 50 kg, 99.9% SULPHUR POWDER 128kg, these raw materials are evenly sent into pulverizer and carried out the material of be broken into≤1 ㎜ of powder mix, pulverize qualified material and require to reach 70 ﹪ of total material.Material is in travelling belt enters rotary drum granulator; in tablets press; the 40 kg vitriol oils and washing water are sprayed on the solid materials in tablets press after by acid tube reactor dilution, and 25 kg liquefied ammonia, by burying a formula jet pipe ejection, participate in granulation with the sulfuric acid reaction in solid materials in tablets press.Prilling temperature is controlled at 65 DEG C-85 DEG C, pH value and is controlled between 5.8-6.2, and tablets press outlet material balling ratio should be in 80% left and right.Material enters dryer and dries, how many import and temperature outs are controlled according to urea content in formula, through twice cooling and three sub-sieve of a cooler, No. two coolers, particle temperature is controlled to normal temperature, the even finished particle that particle is greater than 2.5 ㎜, be less than 4.5 ㎜ sends into that finished product coating machine dyes and anti-caking processing, finally by automatic packing machine and robot palletizing system pack, piling.Now obtaining containing N-P2O5 is 18-20, the compound manure that moderate-element S and Ca content are 26.
Embodiment 2: each automatic weighing batch charger opening for feed numerical value is arranged as follows: 58% monoammonium phosphate 525kg, 20% secondary calcium phosphate 100kg, urea 95 kg, 25% dry ammonia chloride 200kg, carbon ammonium 50 kg, 99.9% SULPHUR POWDER 25kg, these raw materials are evenly sent into pulverizer and carried out the material of be broken into≤1 ㎜ of powder mix, pulverize qualified material and require to reach 70 ﹪ of total material.Material is in travelling belt enters rotary drum granulator; in tablets press; the 30 kg vitriol oils and washing water are sprayed on the solid materials in tablets press after by acid tube reactor dilution, and 25 kg liquefied ammonia, by burying a formula jet pipe ejection, participate in granulation with the sulfuric acid reaction in solid materials in tablets press.Prilling temperature is controlled at 65 DEG C-85 DEG C, pH value and is controlled between 5.8-6.2, and tablets press outlet material balling ratio should be in 80% left and right.Material enters dryer and dries, how many import and temperature outs are controlled according to urea content in formula, through twice cooling and three sub-sieve of a cooler, No. two coolers, particle temperature is controlled to normal temperature, the even finished particle that particle is greater than 2.5 ㎜, be less than 4.5 ㎜ sends into that finished product coating machine dyes and anti-caking processing, finally by automatic packing machine and robot palletizing system pack, piling.Now obtaining containing N-P2O5 is 18-26, the compound manure that moderate-element S and Ca content are 20.

Claims (1)

1. a method that adopts acid tube reactor to prepare sulphur phosphorus two ammoniums, it is characterized in that by contain the pantogen such as nitrogen phosphate and sulfur, calcium material according to formula rate by the material of evenly sending into pulverizer after automatic weighing batch charger metering and carry out be broken into≤1 ㎜ of powder mix, pulverize qualified material and require to reach 70 ﹪ of total material; Material is in travelling belt enters rotary drum granulator, in tablets press, sulfuric acid and washing water are sprayed on the solid materials in tablets press after by acid tube reactor dilution, and liquefied ammonia, by burying a formula jet pipe ejection, participates in granulation with the sulfuric acid reaction in solid materials in tablets press; Prilling temperature is controlled at 65 DEG C-85 DEG C, pH value and is controlled between 5.8-6.2, and tablets press outlet material balling ratio should be in 80% left and right; Material enters dryer and dries, how many import and temperature outs are controlled according to urea content in formula, through twice cooling and three sub-sieve of a cooler, No. two coolers, particle temperature is controlled to normal temperature, the even finished particle that particle is greater than 2.5 ㎜, be less than 4.5 ㎜ sends into that finished product coating machine dyes and anti-caking processing, finally by automatic packing machine and robot palletizing system pack, piling.
CN201310162228.6A 2013-05-07 2013-05-07 A method of preparing sulfur-diammonium phosphate by adopting an acid tubular reactor Pending CN104140304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310162228.6A CN104140304A (en) 2013-05-07 2013-05-07 A method of preparing sulfur-diammonium phosphate by adopting an acid tubular reactor

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Application Number Priority Date Filing Date Title
CN201310162228.6A CN104140304A (en) 2013-05-07 2013-05-07 A method of preparing sulfur-diammonium phosphate by adopting an acid tubular reactor

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107746300A (en) * 2017-09-07 2018-03-02 龙蟒大地农业有限公司 A kind of ammonium two-nutrient compound fertilizer of sulphur phosphorus two and the method using the ammonium two-nutrient compound fertilizer of phosphorus ammonium by-product production sulphur phosphorus two
CN108752097A (en) * 2018-06-13 2018-11-06 贵阳开磷化肥有限公司 A kind of preparation method of simple substance sulfenyl phosphorus ammonium slow-release fertilizer
CN113008595A (en) * 2021-02-26 2021-06-22 中冶东方工程技术有限公司 Robot comprehensive sampling and sample preparation system and method in metallurgical industry
CN115197019A (en) * 2022-08-05 2022-10-18 安徽辉隆集团五禾生态肥业有限公司 Special humic acid type compound fertilizer for wheat and production process and equipment thereof
CN115259955A (en) * 2022-08-05 2022-11-01 安徽辉隆集团五禾生态肥业有限公司 Potassium sulfate type compound fertilizer, preparation method and special extrusion screening pulverizer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134750A (en) * 1977-07-25 1979-01-16 Tennessee Valley Authority Granular ammonium phosphate sulfate and urea-ammonium phosphate sulfate using a common pipe-cross reactor
CN101717289A (en) * 2009-11-30 2010-06-02 天津芦阳化肥股份有限公司 Method for producing Nitrogen-Phosphorus-Potassium compound fertilizer by ammonia and acid tubular reactor
CN101792354A (en) * 2010-04-07 2010-08-04 中盐安徽红四方股份有限公司 Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same
CN102617243A (en) * 2012-04-16 2012-08-01 瓮福(集团)有限责任公司 Production formula of granular chloramine nitrogen fertilizer and preparation method thereof
CN202785661U (en) * 2012-08-14 2013-03-13 湖北茂盛生物有限公司 Acid tube reactor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134750A (en) * 1977-07-25 1979-01-16 Tennessee Valley Authority Granular ammonium phosphate sulfate and urea-ammonium phosphate sulfate using a common pipe-cross reactor
CN101717289A (en) * 2009-11-30 2010-06-02 天津芦阳化肥股份有限公司 Method for producing Nitrogen-Phosphorus-Potassium compound fertilizer by ammonia and acid tubular reactor
CN101792354A (en) * 2010-04-07 2010-08-04 中盐安徽红四方股份有限公司 Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same
CN102617243A (en) * 2012-04-16 2012-08-01 瓮福(集团)有限责任公司 Production formula of granular chloramine nitrogen fertilizer and preparation method thereof
CN202785661U (en) * 2012-08-14 2013-03-13 湖北茂盛生物有限公司 Acid tube reactor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107746300A (en) * 2017-09-07 2018-03-02 龙蟒大地农业有限公司 A kind of ammonium two-nutrient compound fertilizer of sulphur phosphorus two and the method using the ammonium two-nutrient compound fertilizer of phosphorus ammonium by-product production sulphur phosphorus two
CN107746300B (en) * 2017-09-07 2021-08-13 龙蟒大地农业有限公司 Sulfur-phosphorus-diammonium binary compound fertilizer and method for producing sulfur-phosphorus-diammonium binary compound fertilizer by utilizing phosphorus-ammonium byproduct
CN108752097A (en) * 2018-06-13 2018-11-06 贵阳开磷化肥有限公司 A kind of preparation method of simple substance sulfenyl phosphorus ammonium slow-release fertilizer
CN113008595A (en) * 2021-02-26 2021-06-22 中冶东方工程技术有限公司 Robot comprehensive sampling and sample preparation system and method in metallurgical industry
CN115197019A (en) * 2022-08-05 2022-10-18 安徽辉隆集团五禾生态肥业有限公司 Special humic acid type compound fertilizer for wheat and production process and equipment thereof
CN115259955A (en) * 2022-08-05 2022-11-01 安徽辉隆集团五禾生态肥业有限公司 Potassium sulfate type compound fertilizer, preparation method and special extrusion screening pulverizer

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Application publication date: 20141112