CN203999400U - A kind of device of producing full water-soluble ammonium nitrate magnesium - Google Patents
A kind of device of producing full water-soluble ammonium nitrate magnesium Download PDFInfo
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- CN203999400U CN203999400U CN201420403825.3U CN201420403825U CN203999400U CN 203999400 U CN203999400 U CN 203999400U CN 201420403825 U CN201420403825 U CN 201420403825U CN 203999400 U CN203999400 U CN 203999400U
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Abstract
The utility model relates to the production unit of chemical fertilizer field ammonium nitrate magnesium, is specially a kind of device of producing full water-soluble ammonium nitrate magnesium.Solved current magnesium nitrate product water dissolubility bad, easily caking and purity technical problem on the low side.Produce a device for full water-soluble sheet magnesium nitrate, comprise dilute acid bath and magnesium oxide groove, the two discharge port is connected with reactor jointly; The steam-in of single vaporization device is connected with steam boiler, and another opening for feed of mixed liquid bath is connected with ammonium nitrate liquid bath, and mixed liquid bath discharge port is connected with second evaporator, and the steam-in of second evaporator is connected with steam boiler; Second evaporator discharge port is connected with two cooling reactors, and the discharge port of two cooling reactors is connected with steel band tablets press jointly; Described two cooling reactors are to be connected with the feeding mouth of the prilling granulator of steel band tablets press.The ammonium nitrate magnesium that adopts the utility model to produce is round sheet, store for a long time and transport for long-distance no longer to occur caking phenomenon, and content can reach 99 ~ 99.5%.
Description
Technical field
The utility model relates to the production unit of chemical fertilizer field ammonium nitrate magnesium, is specially a kind of device of producing full water-soluble ammonium nitrate magnesium.
Background technology
The magnesium nitrate hexahydrate crystal (or particle) for fertilizer trade that prior art is produced, in order to prevent soil acidification, require product pH scope 6 ~ 7, but under this pH condition, in the time that product is water-soluble, there will be the cotton-shaped water-insoluble of macroscopic white, that spray very easily occurs is stifled spraying in process, and this has just limited this product in the application spraying in establishing greatly; Exist because there is a large amount of dissociating water molecules on crystal (or particle) surface, this just causes product aspect packed and transported, easily to occur the plate that lumps, and is unfavorable for long-distance transport and lengthy warehousing simultaneously; And be subject to the impact of water-insoluble and a large amount of dissociating water molecules of product surface, directly cause product purity on the low side.Therefore need the production technique of this kind of fertilizer to make improvement, simultaneously supporting a kind of production equipment that is suitable for improving rear technique.
Summary of the invention
The utility model be solve current magnesium nitrate product water dissolubility bad, easily caking and purity technical problem on the low side, a kind of device of producing full water-soluble sheet ammonium nitrate magnesium is provided.
The utility model is to adopt following technical scheme to realize: a kind of device of producing full water-soluble sheet ammonium nitrate magnesium, comprise dilute acid bath and magnesium oxide groove, and the two discharge port is connected with reactor jointly; The discharge port of reactor is connected with pressure filter, and pressure filter discharge port is connected with clear liquid groove, and clear liquid groove discharge port is connected with single vaporization device; The steam-in of single vaporization device is connected with steam boiler, the discharge port of single vaporization device is connected with mixed liquid bath, another opening for feed of mixed liquid bath is connected with ammonium nitrate liquid bath, and mixed liquid bath discharge port is connected with second evaporator, and the steam-in of second evaporator is connected with steam boiler; Second evaporator discharge port is connected with two cooling reactors, and the discharge port of two cooling reactors is connected with steel band tablets press jointly; Described two cooling reactors are to be connected with the feeding mouth of the feeding device of steel band tablets press.
The utility model in use, as shown in Figure 1, in dilute acid bath, fill rare nitric acid, in magnesium oxide groove, fill magnesium oxide, the two is connected with reactor by pipeline, and the bottom discharge mouth of reactor is connected with pressure filter by pipeline, be used for filtering magnesium nitrate neutralizer, single vaporization device is realized once concentration, and ammonium nitrate liquid bath adds ammonium nitrate solution in mixed liquid bath, steam boiler to once, second evaporator provides steam.
Adopt this device to produce the method for ammonium nitrate magnesium: a kind of method of producing full water-soluble ammonium nitrate magnesium, comprise the following steps: (a) by magnesium oxide and rare nitric acid (rare concentration of nitric acid 40%) in molar ratio 1:2 add reactor 3 to carry out neutralization reaction, temperature is controlled at 70 ~ 80 DEG C of stirring reaction 1.5 ~ 2h, regulates reaction solution pH to 6.5 ~ 7.5 afterwards with magnesium oxide; (b) the magnesium nitrate neutralizer obtaining enters plate and frame(type)filter press 4 and filters, and obtains transparent filtrate; (c) filtrate is pumped into single vaporization device 6 and carry out evaporation concentration, being evaporated to proportion is 1.080 ~ 1.400g/cm
3; (d) add ammonium nitrate solution to the magnesium nitrate solution after concentrated, described ammonium nitrate solution accounts for 1 ~ 2% of magnesium nitrate solution quality after concentrated, ammonium nitrate solution concentration is 50%, carries out double evaporation-cooling (in second evaporator 9) and concentrate after stirring, and concentrate to proportion is 1.150 ~ 1.540g/cm
3; (e) concentrated solution enters steel band tablets press, generates semisphere sheet ammonium nitrate magnesium finished product through the granulation of steel band tablets press.While entering steel band, temperature is controlled at 65 ~ 100 DEG C, and temperature is cooled to 20 ~ 30 DEG C and is solidified as semisphere sheet.
1, this device is by adjusting original magnesium nitrate products production equipment, in conjunction with new production technique, thoroughly solved product poorly water-soluble, purity is on the low side, the problem of easy caking.
The emphasis of the technique that 2, this device adopts is to have added in process of production a certain proportion of solidifying agent (ammonium nitrate).The major cause of product poorly water-soluble is to have the alkaline oxygenated magnesium not reacted to exist, partly solidified dose is decomposed at a certain temperature, discharge oxynitride, the oxynitride aqueous solution is equivalent to salpeter solution, can generate magnesium nitrate with unreacted alkaline oxygenated reactive magnesium, so not only solved the shortcoming of product poorly water-soluble but also improved product purity; And another part solidifying agent and magnesium nitrate generation physical adsorption strengthen the mobility of material, thereby make the intensity enhancing on material surface, greatly reduce the generation of caking phenomenon, so just solve product transport for long-distance and lengthy warehousing in the caking phenomenon that occurs.
3, the magnesium nitrate that prior art is produced is white needle-like crystals (or particulate state), the cotton-shaped water-insoluble of water-soluble adularescent, easily caking, content is on the low side 98 ~ 98.5%; The ammonium nitrate magnesium that this device is produced is semisphere sheet (1 ~ 50mm is particulate state in the market), and product is water-soluble is limpid clear solution, store for a long time and transport for long-distance no longer to occur caking phenomenon, and content can reach 99 ~ 99.5%.
Described steel band tablets press can melt upstream process heat state material by the uniform thereunder at the uniform velocity mobile steel band of tablets press distributor; steel band below is provided with continuous spray, refrigerating unit; force material on steel band moving process be able to fast cooling, solidify, thereby reach the object of granulating and forming.
The ammonium nitrate magnesium that adopts the utility model final production to go out is round sheet (1 ~ 50mm, be in the market particulate state), product is water-soluble is limpid clear solution, store for a long time and transport for long-distance no longer to occur caking phenomenon, and content can reach 99 ~ 99.5%.Owing to containing magnesium and ammonium simultaneously, nutrient is more comprehensive than ammonium nitrate simultaneously, and plant can directly absorb, and farmland result of use is good.
Brief description of the drawings
Fig. 1 the utility model structural representation.
Fig. 2 steel band granulator structure described in the utility model schematic diagram.
1-dilute acid bath, 2-magnesium oxide groove, 3-reactor; 4-plate and frame(type)filter press, 5-clear liquid groove, 6-single vaporization device; 7-mixes liquid bath, 8-ammonium nitrate liquid bath, 9-second evaporator; 9a-second evaporator steam inlet, 9b-second evaporator vapour outlet, 10-steam boiler; 11-cooling reactor, 12-steel band tablets press, 13-feeding device; 14a-entrance of cooling water, 14b-cooling water outlet.
Embodiment
Produce a device for full water-soluble sheet ammonium nitrate magnesium, comprise dilute acid bath 1 and magnesium oxide groove 2, the two discharge port is connected with reactor 3 jointly; The discharge port of reactor 3 is connected with pressure filter 4, and pressure filter 4 discharge ports are connected with clear liquid groove 5, and clear liquid groove 5 discharge ports are connected with single vaporization device 6; The steam-in of single vaporization device 6 is connected with steam boiler 11, and the discharge port of single vaporization device 6 is connected with mixed liquid bath 7; Another opening for feed of mixed liquid bath 7 is connected with ammonium nitrate liquid bath 8, and mixed liquid bath 7 discharge ports are connected with second evaporator 9, and the steam-in of second evaporator 9 is connected with steam boiler 10; The discharge port that second evaporator 9 discharge ports are connected with 11, two cooling reactors 11 of two cooling reactors is connected with steel band tablets press 12 jointly; Described two cooling reactors 11 are to be connected with the feeding mouth of the feeding device 13 of steel band tablets press 12.In accompanying drawing 1, arrow represents the flow direction of solution or material.
On connecting pipeline between described each container, be equipped with the vacuum pump for pumping solution.
Described pressure filter 4 adopts plate and frame(type)filter press.Plate and frame(type)filter press is applied widely, good filtration effect.While entering steel band, temperature is controlled at 65 ~ 100 DEG C, and temperature is cooled to 20 ~ 30 DEG C and is solidified as semisphere sheet.
On second evaporator 9, offer steam inlet and outlet.On steel band tablets press, offer entrance of cooling water and outlet, wherein steam inlet, vapour outlet adopts upper entering and lower leaving, and entrance of cooling water 14a, cooling water outlet 14b adopt bottom in and top out.Steel band tablets press adopts single steel band granulation flaker that above Nereid's great waves steel band Science and Technology Ltd. produces, device numbering: JT3000-1.5-17.5.
Claims (3)
1. produce a device for full water-soluble sheet ammonium nitrate magnesium, comprise dilute acid bath (1) and magnesium oxide groove (2), the two discharge port is connected with reactor (3) jointly; The discharge port of reactor (3) is connected with pressure filter (4), and pressure filter (4) discharge port is connected with clear liquid groove (5), and clear liquid groove (5) discharge port is connected with single vaporization device (6); The steam-in of single vaporization device (6) is connected with steam boiler (11), and the discharge port of single vaporization device (6) is connected with mixed liquid bath (7); It is characterized in that, another opening for feed of mixed liquid bath (7) is connected with ammonium nitrate liquid bath (8), and mixed liquid bath (7) discharge port is connected with second evaporator (9), and the steam-in of second evaporator (9) is connected with steam boiler (10); Second evaporator (9) discharge port is connected with two cooling reactors (11), and the discharge port of two cooling reactors (11) is connected with steel band tablets press (12) jointly; Described two cooling reactors (11) are to be connected with the feeding mouth of the feeding device (13) of steel band tablets press (12).
2. a kind of device of producing full water-soluble sheet ammonium nitrate magnesium as claimed in claim 1, is characterized in that, on the connecting pipeline between described each container, is equipped with the vacuum pump for pumping solution.
3. a kind of device of producing full water-soluble sheet ammonium nitrate magnesium as claimed in claim 1 or 2, is characterized in that, described pressure filter (4) adopts plate and frame(type)filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403825.3U CN203999400U (en) | 2014-07-22 | 2014-07-22 | A kind of device of producing full water-soluble ammonium nitrate magnesium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403825.3U CN203999400U (en) | 2014-07-22 | 2014-07-22 | A kind of device of producing full water-soluble ammonium nitrate magnesium |
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| Publication Number | Publication Date |
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| CN203999400U true CN203999400U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420403825.3U Active CN203999400U (en) | 2014-07-22 | 2014-07-22 | A kind of device of producing full water-soluble ammonium nitrate magnesium |
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2014
- 2014-07-22 CN CN201420403825.3U patent/CN203999400U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170106 Address after: 030500 Shanxi city of Lvliang province Jiaocheng Yiwang Village Patentee after: Shanxi Jiaocheng Hongxing Chemicals Co., Ltd. Address before: 030006 Shanxi Province, Taiyuan City Pro Yin North No. 368 hydraulic building 14 layer Patentee before: Lu Yongkuan |