CN102311294A - Ammonified granulation tube provided with acid distributor - Google Patents
Ammonified granulation tube provided with acid distributor Download PDFInfo
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- CN102311294A CN102311294A CN201110108020A CN201110108020A CN102311294A CN 102311294 A CN102311294 A CN 102311294A CN 201110108020 A CN201110108020 A CN 201110108020A CN 201110108020 A CN201110108020 A CN 201110108020A CN 102311294 A CN102311294 A CN 102311294A
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Abstract
The invention relates to the field of the production technology of compound fertilizers and particularly relates to a device used in an ammonified granulation process during the production of the compound fertilizer. The device comprises a barrel, a feed hole, an ammonia inlet tube and an acid inlet tube parallel with the axial direction of the barrel, wherein the acid inlet tube is of a three-section structure composed by connecting three pipelines with different inside diameters, sequentially a water inlet tube, a dilution tube and an acid distribution tube; an acid inlet is arranged on the wall of the dilution tube; and a plurality of nozzles are arranged on the wall of the acid distribution tube.
Description
Technical field
The present invention relates to composite fertilizer's production technical field, especially a kind of equipment that is used for the ammoniation-granulation technological process of composite fertilizer's production.
Background technology
Ammoniation-granulation explained hereafter composite fertilizer is a kind of of granulating method.This technology has the advantage that less investment, strong operability, production capacity are high, energy consumption is low, production cost is little, and becomes the main flow technology that current field of compound fertilizer production extensively adopts.With various solid materials meterings, send into ammoniation granulator behind pulverizing, the mixing in the production process, in the granulation cylinder, add sulfuric acid and ammonia according to certain dosage.The adding of sulfuric acid and ammonia has following effect: one, sulfuric acid and ammonia generation chemical reaction, and reaction discharges great amount of heat, can improve temperature of charge, increases balling ratio; High temperature quickens moisture evaporation in addition, reduces granulation drum outlet place moisture content of material, alleviates drying pressure, thereby reduces energy consumption for drying; Two, through sulfuric acid and raw material MAP effect, can improve water-soluble phosphorus content; Three, can rationally control the pH value of material through regulating sulfuric acid and ammonia additional proportion.
Ammoniation granulator is Fig. 1 and two kinds of types of Fig. 2 at present.Owing to must use dilute sulphuric acid and ammonia generation chemical reaction during granulation, the sulfuric acid that therefore gets into Fig. 1 and two kinds of types of Fig. 2 before reacting with ammonia all through diluting in advance.2 is liquid ammonia import among Fig. 1, and 3 is the dilute sulphuric acid import after the dilution of washing tail gas water; 2 is the washing tail gas water inlet among Fig. 2, and 3 is the dilute sulphuric acid import, and 4 is the import of gaseous state ammonia.1 is material inlet among Fig. 1 and Fig. 2, and 5 is the ammoniation-granulation tube, and 6 is the tail gas absorption tube, and 7 is tablets press gas solid separation chamber, and 8 is material outlet.Dilution of sulphuric acid need use specific equipment---sulfuric acid dilution device, has so not only increased equipment, increases input, and also increases energy expenditure, increases production cost, and the great amount of heat energy that discharges in the diluting concentrated sulfuric acid process can't utilize, and causes energy dissipation.
Summary of the invention
The technical problem that the present invention will solve is: overcome the deficiency in the prior art, a kind of ammoniation-granulation tube is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of ammoniation-granulation tube; Have cylindrical shell, opening for feed, ammonia-feeding pipe and acid inlet tube, the axially parallel of acid inlet tube and cylindrical shell, the structure of wherein said acid inlet tube is a syllogic; The pipe connection that is had nothing in common with each other by three sections internal diameters together; Be followed successively by water inlet pipe, dilution tube and sour distribution pipe, the tube wall of dilution tube is provided with acid inlet, and acid distribution tube wall is provided with a plurality of shower nozzles.
The internal diameter of washing tail gas water of the vitriol oil of dilution described in the present invention is 35～50mm, and the internal diameter of sour distribution pipe is identical with the internal diameter of water inlet pipe, and the internal diameter of dilution tube is 1.25～1.50 times of internal diameter of water inlet pipe.
The invention has the beneficial effects as follows: one, the present invention directly is sprayed on the material surface through the high temperature dilute sulphuric acid that diluted in addition because the heat release that the Dilution of sulphuric acid process discharges in granulating cylinder, improves temperature in the granulating cylinder, can improve temperature of charge.The raising of temperature of charge makes the balling ratio of material can improve 15%, has reduced the ratio of returning charge, thereby increases the output of tablets press, reduces energy expenditure; Two, the raising of temperature in the granulating cylinder helps accelerating the evaporation of compound fertilizer granules internal moisture, and the feasible water cut that gets into the compound fertilizer granules of dry kiln drops to 2.5%～4.0%, has alleviated the dry kiln burden, reduces coal-fired consumption; The raising of temperature can reduce the consumption that heats steam in the granulation process again, thereby has reduced material moisture, has both reduced the coal-fired consumption of steam boiler, reduces the coal-fired consumption of dry kiln again.Three, sulfuric acid directly is sprayed on the material surface, and citric acid soluble phosphorus content descends about 5% in the material under the vitriolic effect.Four, ammonia sparger and sulfuric acid sparger are separate, can freely regulate and control sulfuric acid and ammonia usage, regulate composite fertilizer's pH value and are in the optimum range.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 and Fig. 2 are the structural representations of existing ammoniation-granulation tube;
Fig. 3 is a structural representation of the present invention.
Embodiment.
Combine accompanying drawing that the present invention is further described now.These accompanying drawings are the synoptic diagram of simplification substruction of the present invention only are described in a schematic way, so it only shows the formation relevant with the present invention.
A kind of ammoniation-granulation tube as shown in Figure 3; Have cylindrical shell 4, opening for feed 1, ammonia-feeding pipe 3 and acid inlet tube 2, the axially parallel of acid inlet tube 2 and cylindrical shell 4, the structure of wherein said acid inlet tube 2 is a syllogic; By the different pipe connection of three sections internal diameters together; Be followed successively by water inlet pipe 21, dilution tube 22 and sour distribution pipe 23, the tube wall of dilution tube 22 is provided with acid inlet 24, and acid distribution tube wall is provided with a plurality of shower nozzles.
The vitriolic consumption calculates according to the output of ammoniation granulator, is generally composite fertilizer per ton and adds 25～30kg vitriol oil, and the consumption of the vitriol oil and washing tail gas water keeps certain proportion, and vitriolic concentration is controlled at 50% to 70%.Flow with under meter and the PLC control vitriol oil and washing tail gas water keeps that simultaneously certain pressure is arranged in the acid spreader, so that dilute sulphuric acid can be through the shower nozzle atomizing.
Above-mentioned embodiment only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; 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 (2)
1. ammoniation-granulation tube; Have cylindrical shell, opening for feed, ammonia-feeding pipe and acid inlet tube, the axially parallel of acid inlet tube and cylindrical shell is characterized in that: the structure of wherein said acid inlet tube is a syllogic; The pipe connection that is had nothing in common with each other by three sections internal diameters together; Be followed successively by water inlet pipe, dilution tube and sour distribution pipe, the tube wall of dilution tube is provided with acid inlet, and acid distribution tube wall is provided with a plurality of shower nozzles.
2. ammoniation-granulation tube according to claim 1 is characterized in that: the water inlet pipe internal diameter of described acid inlet tube is 35～50mm, and the internal diameter of sour distribution pipe is identical with the internal diameter of water inlet pipe, and the internal diameter of dilution tube is 1.25～1.50 times of internal diameter of water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110108020 CN102311294B (en) | 2011-04-28 | 2011-04-28 | Ammonified granulation tube provided with acid distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110108020 CN102311294B (en) | 2011-04-28 | 2011-04-28 | Ammonified granulation tube provided with acid distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102311294A true CN102311294A (en) | 2012-01-11 |
| CN102311294B CN102311294B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110108020 Active CN102311294B (en) | 2011-04-28 | 2011-04-28 | Ammonified granulation tube provided with acid distributor |
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| CN (1) | CN102311294B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278454A (en) * | 2016-07-27 | 2017-01-04 | 湖北富邦科技股份有限公司 | Sour method composite heat transfer concentrated sulphuric acid on-line dilution equipment |
| CN108557789A (en) * | 2018-05-18 | 2018-09-21 | 中化重庆涪陵化工有限公司 | A method of utilizing the special MAP of two water law wet dilute phosphoric acids production fire-fighting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201006500Y (en) * | 2007-07-09 | 2008-01-16 | 湖北洋丰股份有限公司 | Granule composite fertilizer pelleting injector |
| 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 |
| CN201501834U (en) * | 2009-09-03 | 2010-06-09 | 卓德武 | Novel hot plate pelletizer for producing compound fertilizer |
-
2011
- 2011-04-28 CN CN 201110108020 patent/CN102311294B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201006500Y (en) * | 2007-07-09 | 2008-01-16 | 湖北洋丰股份有限公司 | Granule composite fertilizer pelleting injector |
| 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 |
| CN201501834U (en) * | 2009-09-03 | 2010-06-09 | 卓德武 | Novel hot plate pelletizer for producing compound fertilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278454A (en) * | 2016-07-27 | 2017-01-04 | 湖北富邦科技股份有限公司 | Sour method composite heat transfer concentrated sulphuric acid on-line dilution equipment |
| CN108557789A (en) * | 2018-05-18 | 2018-09-21 | 中化重庆涪陵化工有限公司 | A method of utilizing the special MAP of two water law wet dilute phosphoric acids production fire-fighting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102311294B (en) | 2013-06-12 |
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