CN102249822B - Ammonization granulation cylinder - Google Patents
Ammonization granulation cylinder Download PDFInfo
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- CN102249822B CN102249822B CN 201110107230 CN201110107230A CN102249822B CN 102249822 B CN102249822 B CN 102249822B CN 201110107230 CN201110107230 CN 201110107230 CN 201110107230 A CN201110107230 A CN 201110107230A CN 102249822 B CN102249822 B CN 102249822B
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Abstract
The invention relates to the technical field of compound fertilizer production, especially relates to a device used in an ammonization granulation process for producing compound fertilizer. The device comprises a cylinder, a material inlet, an ammonia inlet pipe and an acid inlet pipe. The acid inlet pipe and the ammonia inlet pipe are axially parallel to the cylinder. The structure of the acid inlet pipe is a three-segment structure, and is formed through connecting three segments of pipes having different internal diameters, wherein the three segments of the pipes sequentially comprise a water inlet pipe, a dilution pipe and an acid distribution pipe. The pipe wall of the dilution pipe is provided with an acid inlet. The pipe wall of the acid distribution pipe is provided with a plurality of sprayers. The ammonia inlet pipe is a three-segment structure, and comprises a liquid inlet pipe, a vaporization chamber and a distribution pipe, wherein the vaporization chamber is a sealed cylinder, an outlet end of the liquid inlet pipe is arranged on the middle portion of the vaporization chamber, the pipe body of the liquid inlet pipe is axially parallel to the vaporization chamber, an end of the vaporization chamber is connected with the distribution pipe.
Description
Technical field
The present invention relates to composite fertilizer's production technical field, especially a kind of equipment of ammoniation-granulation technological process of producing for composite fertilizer.
Background technology
Ammoniation-granulation explained hereafter composite fertilizer is the main flow production technique that current composite fertilizer manufacturing enterprise extensively adopts.This technique is to send in roller pelletizer after pulverizing by the plurality of raw materials of metering, adds sulfuric acid and ammonia in granulation process, keeps simultaneously material that certain temperature and water ratio are arranged, and utilizes the granulating method granulating.Ammoniation-granulation technique has that production capacity is high, energy consumption is low, little, the advantages such as operation cost is low, strong operability of investment.Sulfuric acid and ammonia add the following effect that mainly contains: one, sulfuric acid and ammonia generation chemical reaction, the one side water generation reaction, can reduce the interpolation of water in granulation process, the heat of chemical reaction release can improve temperature of charge on the other hand, increase balling ratio, be accelerated into simultaneously the evaporation of ball particle moisture, alleviate drying pressure; Two, the pH value that the add-on of controlling sulfuric acid and ammonia can be regulated compound fertilizer granules is in suitable scope; Three, sulfuric acid and raw material DMP effect improve water-soluble phosphorus content; Four, add sulfuric acid in the ammoniation-granulation process, make compound fertilizer granules contain this kind of plant essential nutrient element of sulphur.
Because the sulfuric acid that enters ammoniation granulator is necessary for dilute sulphuric acid.Current is that the vitriol oil is passed through specific equipment---sulfuric acid dilution device dilutes, so not only increased equipment investment, increase equipment working cost, also increased energy expenditure, cause the increase of production cost, and the amount of heat that discharges in the diluting concentrated sulfuric acid process can't utilize, and causes energy dissipation.
Enter by 3 two kinds of forms that material bed ammonia has liquid and gaseous state.Liquid ammonia enters the granulation kiln, and the liquid ammonia absorption heat that need to gasify reduces local temperature of charge, affects the material balling-up; Liquid ammonia concentration is high, be difficult to spray in material evenly, can not with the abundant complete reaction of dilute sulphuric acid, cause partial material the phenomenon of sulfuric acid or ammonia to occur too much absorbing, not only can affect the potential of hydrogen of composite fertilizer, also can increase ammonia loss by volatilization.Liquid ammonia enters tablets press, must so must increase equipment investment and running cost through the vaporization of liquid ammonia vaporization device, increases production cost.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, a kind of Ammonization-granulating barrel is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Ammonization-granulating barrel with ammonia sparger, have cylindrical shell, opening for feed, ammonia-feeding pipe and acid inlet tube, acid inlet tube and ammonia-feeding pipe and cylindrical shell axially parallel, the structure of wherein said acid inlet tube is syllogic, linked together by three sections different pipelines of internal diameter, be followed successively by water inlet pipe, dilution tube and sour distribution pipe, be provided with acid inlet on the tube wall of dilution tube, be provided with a plurality of shower nozzles on acid distribution tube wall; Wherein said ammonia-feeding pipe is three stage structure, be divided into liquid-inlet pipe, vaporization chamber and distribution piping, vaporization chamber is containment cylinder, and the exit end of liquid-inlet pipe is arranged on the middle part of vaporization chamber, the body of liquid-inlet pipe and vaporization chamber axially parallel are connecting distribution piping at the other end of vaporization chamber.
Be provided with steam inlet on the sidewall of described vaporization chamber, it is vertical with the liquefied ammonia liquid-inlet pipe that steam enters the direction of vaporization chamber, the liquefied ammonia of can effectively vaporizing.
For the ammonia that distributes more uniformly, be provided with thrust-augmenting nozzle on described distribution tube wall, thrust-augmenting nozzle is vertically mounted on distribution piping.
The invention has the beneficial effects as follows: one, the enforcement by this device is because following reason can improve temperature of charge.At first, the heat release that produces during the dilution of the vitriol oil and washing tail gas water can improve an interior temperature of charge in granulating cylinder, and the high temperature dilute sulphuric acid directly is sprayed on the material surface, can improve temperature of charge; Secondly, sulfuric acid and ammonia generation chemical reaction, release of heat.The raising of temperature of charge not only can increase balling ratio, makes balling ratio increase by 25%～35%, can also be accelerated into ball particle moisture evaporation, makes dry kiln ingress moisture content drop to 2.0%～3.5%; Two, MAP is under the effect of sulfuric acid, can reduce citric acid soluble phosphorus content 5% left and right; Three, reduce ammonia loss by volatilization, approximately reduce 10% as calculated.The direct benefit that more than brings is: the production capacity of ammoniation granulator improves 6%, and bunker coal consumption reduces by 10%, and production cost reduces by 25 yuan/tons.
Description of drawings
The present invention is further described below in conjunction with drawings and embodiments.
Fig. 1 is structural representation of the present invention.
Embodiment.
The present invention is further illustrated by reference to the accompanying drawings now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present invention in a schematic way, so it only shows the formation relevant with the present invention.
Ammonization-granulating barrel as shown in Figure 1 as shown in Figure 1, has cylindrical shell, opening for feed 1, ammonia-feeding pipe 3 and acid inlet tube 2, cylindrical shell is connected with the gas solid separation chamber, being useful on the tail gas that absorbs tail gas on the gas solid separation chamber absorbs mouthful, bottom in the gas solid separation chamber is material outlet, acid inlet tube 2 and cylindrical shell axially parallel, ammonia-feeding pipe 3 and cylindrical shell axially parallel, the structure of wherein said acid inlet tube 2 is syllogic, linked together by three sections different pipelines of internal diameter, be followed successively by water inlet pipe 21, dilution tube 22 and sour distribution pipe 23, be provided with acid inlet 24 on the tube wall of dilution tube 22, be provided with a plurality of shower nozzles on acid distribution tube wall, wherein said ammonia-feeding pipe 3 is three stage structure, be divided into liquid-inlet pipe 31, vaporization chamber 33 and distribution piping 34, vaporization chamber 33 is containment cylinder, the exit end of liquid-inlet pipe 31 is arranged on the middle part of vaporization chamber 33, the axially parallel of the body of liquid-inlet pipe 31 and vaporization chamber 33 is connecting distribution piping 34 at the other end of vaporization chamber 33.
Be provided with steam inlet on the sidewall of vaporization chamber, steam inlet is fixed with steam-pipe 32, and it is vertical with liquefied ammonia liquid-inlet pipe 31 that steam enters the direction of vaporization chamber 33, the liquefied ammonia of can effectively vaporizing.
Be provided with thrust-augmenting nozzle 35 on described distribution tube wall, thrust-augmenting nozzle 35 is vertically mounted on distribution piping 34, is offset in order to prevent thrust-augmenting nozzle 35, is provided with baffle plate 36 at the sidewall of thrust-augmenting nozzle 35, and baffle plate 36 also is fixedly connected with distribution piping 34.
Water inlet pipe 21 internal diameters of acid inlet tube 2 are 20～50mm, and the internal diameter of sour distribution pipe 23 is identical with the internal diameter of water inlet pipe 21, and the internal diameter of dilution tube 22 is 1.25～1.5 times of internal diameter of water inlet pipe 21, and the length of dilution tube 21 is 1500～2000mm; The diameter of acid distribution pipe 23 is 20～40mm, and length is about 1/3～1/4 of dilution tube 22 length.
The liquid-inlet pipe internal diameter is 40～80mm, and the length that liquid-inlet pipe passes in vaporization chamber is about 1/3～1/2 of vaporization chamber length; The steam inlet internal diameter is 80～150mm; The vaporization chamber internal diameter is 150～240mm, length 2000～3000mm; The top closure of distribution piping, internal diameter are 30～90mm, and length is 1000～1500mm.The thrust-augmenting nozzle internal diameter is 30～50mm, the short 50～100mm of radius of Length Ratio granulation cylinder, and there is shower nozzle on the top, and is crooked to the drum rotating direction.
Above-mentioned embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow person skilled in the art scholar can understand content of the present invention and be implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. Ammonization-granulating barrel, have cylindrical shell, opening for feed, ammonia-feeding pipe and acid inlet tube, acid inlet tube and ammonia-feeding pipe and cylindrical shell axially parallel, it is characterized in that: wherein said acid inlet tube structure is syllogic, linked together by three sections different pipelines of internal diameter, be followed successively by water inlet pipe, dilution tube and sour distribution pipe, be provided with acid inlet on the tube wall of dilution tube, be provided with a plurality of shower nozzles on acid distribution tube wall; Described ammonia-feeding pipe is three stage structure, be divided into liquid-inlet pipe, vaporization chamber and distribution piping, vaporization chamber is containment cylinder, and the exit end of liquid-inlet pipe is arranged on the middle part of vaporization chamber, the body of liquid-inlet pipe and the axially parallel of vaporization chamber are connecting distribution piping at the other end of vaporization chamber; Be provided with steam inlet on the sidewall of described vaporization chamber.
2. Ammonization-granulating barrel according to claim 1, is characterized in that: be provided with thrust-augmenting nozzle on described distribution tube wall.
3. Ammonization-granulating barrel according to claim 2, it is characterized in that: described thrust-augmenting nozzle is vertically mounted on distribution piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107230 CN102249822B (en) | 2011-04-28 | 2011-04-28 | Ammonization granulation cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107230 CN102249822B (en) | 2011-04-28 | 2011-04-28 | Ammonization granulation cylinder |
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| Publication Number | Publication Date |
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| CN102249822A CN102249822A (en) | 2011-11-23 |
| CN102249822B true CN102249822B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110107230 Active CN102249822B (en) | 2011-04-28 | 2011-04-28 | Ammonization granulation cylinder |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107661730A (en) * | 2017-11-02 | 2018-02-06 | 陕西煤业化工集团神木天元化工有限公司 | A kind of ammonia distributor and include its drum ammoniation granulating machine |
Citations (4)
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|---|---|---|---|---|
| CN1807367A (en) * | 2006-01-27 | 2006-07-26 | 许洪兴 | Tubular reactor for sulfuric acid and ammonia |
| CN101391934A (en) * | 2008-10-24 | 2009-03-25 | 江苏阿波罗复合肥有限公司 | Ammoniation granulator and composite fertilizer production novel technique |
| CN101723744A (en) * | 2009-12-11 | 2010-06-09 | 安徽六国化工股份有限公司 | Granulator capable of preventing central tubular beam from scaling |
| CN202072637U (en) * | 2011-04-28 | 2011-12-14 | 江苏中东化肥股份有限公司 | Ammonification pelleting cylinder |
-
2011
- 2011-04-28 CN CN 201110107230 patent/CN102249822B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807367A (en) * | 2006-01-27 | 2006-07-26 | 许洪兴 | Tubular reactor for sulfuric acid and ammonia |
| CN101391934A (en) * | 2008-10-24 | 2009-03-25 | 江苏阿波罗复合肥有限公司 | Ammoniation granulator and composite fertilizer production novel technique |
| CN101723744A (en) * | 2009-12-11 | 2010-06-09 | 安徽六国化工股份有限公司 | Granulator capable of preventing central tubular beam from scaling |
| CN202072637U (en) * | 2011-04-28 | 2011-12-14 | 江苏中东化肥股份有限公司 | Ammonification pelleting cylinder |
Non-Patent Citations (7)
| Title |
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| 何朝金.磷铵造粒机技术改造.《化肥工业》.2007,第34卷(第03期),28-30. |
| 冯玉海等.硫酸、氨管式反应器造粒技术及其应用实例.《磷肥与复肥》.2007,第22卷(第04期),46-48. |
| 化学工业部化肥司 中国磷肥工业协会编写组.氨化造粒流程.《磷酸磷铵的生产工艺》.成都科技大学出版社,1991,(第1版),128-129. * |
| 张猛等.流化床造粒器生产球粒状磷铵的研究.《化肥工业》.2004,第31卷(第05期),26-29. |
| 流化床造粒器生产球粒状磷铵的研究;张猛等;《化肥工业》;20041031;第31卷(第05期);26-29 * |
| 硫酸、氨管式反应器造粒技术及其应用实例;冯玉海等;《磷肥与复肥》;20070731;第22卷(第04期);46-48 * |
| 磷铵造粒机技术改造;何朝金;《化肥工业》;20070630;第34卷(第03期);28-30 * |
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| CN102249822A (en) | 2011-11-23 |
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