WO2023239321A1 - Low density ammonium nitrate production method in granular form - Google Patents
Low density ammonium nitrate production method in granular form Download PDFInfo
- Publication number
- WO2023239321A1 WO2023239321A1 PCT/TR2023/050169 TR2023050169W WO2023239321A1 WO 2023239321 A1 WO2023239321 A1 WO 2023239321A1 TR 2023050169 W TR2023050169 W TR 2023050169W WO 2023239321 A1 WO2023239321 A1 WO 2023239321A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ammonium nitrate
- grains
- mixer
- production method
- low
- Prior art date
Links
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008030 elimination Effects 0.000 claims abstract description 12
- 238000003379 elimination reaction Methods 0.000 claims abstract description 12
- 239000008187 granular material Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000007493 shaping process Methods 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 239000000654 additive Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000007873 sieving Methods 0.000 claims abstract 4
- 239000002360 explosive Substances 0.000 abstract description 21
- 238000010276 construction Methods 0.000 abstract description 7
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 239000000295 fuel oil Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 8
- 238000005474 detonation Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- OYFJQPXVCSSHAI-QFPUQLAESA-N enalapril maleate Chemical compound OC(=O)\C=C/C(O)=O.C([C@@H](C(=O)OCC)N[C@@H](C)C(=O)N1[C@@H](CCC1)C(O)=O)CC1=CC=CC=C1 OYFJQPXVCSSHAI-QFPUQLAESA-N 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- DVARTQFDIMZBAA-UHFFFAOYSA-O ammonium nitrate Chemical class [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- JUCCBFMAJUMIFJ-UHFFFAOYSA-O [N].[NH4+].[O-][N+]([O-])=O Chemical compound [N].[NH4+].[O-][N+]([O-])=O JUCCBFMAJUMIFJ-UHFFFAOYSA-O 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
Abstract
This invention relates to the method of producing low density ammonium nitrate in granular form, which can be used as an explosive in underground and surface mines, tunnel openings, excavation, road, and dam constructions and its feature is; grinding the nitrogenous ammonium nitrate in solid form with a grinder and transporting it to the premixer (10), pumping (20) the ammonium nitrate solution into the pre-mixer by adding special additives, mixing liquid ammonium nitrate solution and powdered ammonium nitrate pumped to the pre-mixer and making it into dough (30), shaping (40) the resulting dough by rolling it in a granulator, elimination of the large pieces (50) larger than 3 millimeters in diameter from ammonium nitrate grains that take the form of granules by rolling, drying (60) the remaining ammonium nitrate grains after the sieving process with the help of a dryer until the moisture content falls between 0.2% and 1%, elimination of small parts(70) smaller than 1 millimeter in diameter from dried ammonium nitrate grains, cooling the ammonium nitrate grains remaining after the second sieving with the help of a cooling (80) equipment, and packing (90) of the cooled grains in the desired quantities process steps.
Description
LOW DENSITY AMMONIUM NITRATE PRODUCTION METHOD IN GRANULAR FORM
Technical Field:
This invention relates to the method of producing low density ammonium nitrate in granular form, which can be used as an explosive in underground and surface mines, tunnel openings, excavation, road and dam constructions.
State of the Art:
In underground and above-ground mines, tunnel openings, excavation, road and dam constructions, as well as above-ground construction enterprises, when it is not possible to break up and loosen the rocks with construction machines during production, preparation, progress and construction due to technical and/or economic reasons, rock shredding work It is made by blasting method using chemical explosive materials. One of these chemicals is ammonium nitrate. The main reason why ammonium nitrate is such a widely used explosive is its cheapness and high stability. Ammonium nitrates, which are generally produced in the prile porous form, are of low or high density.
In the patent application numbered JP2009013000A, “Explosive Composition” is explained. The invention includes porous pril ammonium nitrate, an oil, and an inorganic low bulk density agent having a hydrogen ion index of 5 or higher and 7 or less. The oil absorbency of porous prill ammonium nitrate is 8% or higher and 15% or less. The oil absorbency of the inorganic low bulk density agent is greater than that of the porous prill ammonium nitrate. The bulk density of the inorganic low bulk density material is 0.3 g/cm3. 3 or higher and 0.6 g/cm3 or less.
In the patent application numbered JP2006256927A, “Ammonium Nitrate Fuel Oil Explosive” is explained. PROBLEM TO BE SOLVED: To provide an ammonium nitrate
fuel oil (ANFO) explosive prepared by mixing porous prill ammonium nitrate, fuel oil and a phlegmatizer used also as a specific gravity control agent wherein the detonation velocity is increased and the power is enhanced by solving a defect that the explosive is easily aggregated by static electricity to improve the dispersibility without damaging the advantages when an organic-based one is used as the phlegmatizer used also as the specific gravity control agent. ; SOLUTION: In the ammonium nitrate fuel oil (ANFO) explosive prepared by mixing the porous prill ammonium nitrate, the fuel oil and the phlegmatizer used also as the specific gravity control agent, the phlegmatizer used also as the specific gravity control agent is an organic phlegmatizer used also as a specific gravity control agent coated with an antistatic agent. The ammonium nitrate fuel oil (ANFO) explosive is obtained by blending 6 wt% light oil in 94 wt% prill ammonium nitrate and further blending 2 wt% foaming polystyrene coated with the antistatic agent ANDO29A (brand name) at the outside rate.
In the patent application numbered JP2003137684A, “Ammonium Nitrate Oil Solution Explosive” is explained. PROBLEM TO BE SOLVED: To provide a safe ammonium nitrate oil solution explosive which is phlegmatized not to be completely exploded (to be incompletely exploded) by No. 6 detonation initiation even right after manufacture and after lapse of several weeks in spite of using a porous prill ammonium nitrate which is reduced in the density of particles and is sensitized and to provide the ammonium nitrate oil solution explosive which further lowers the specific bulk gravity of the ammonium nitrate oil solution explosive using the porous prill ammonium nitrate of low density without raising initiation sensitivity and can be controlled in the bulk specific gravity. SOLUTION: The ammonium nitrate oil solution explosive prepared by mixing the porous prill ammonium nitrate, fuel oil, and a phlegmatizer in common use as a specific gravity control agent of an inert porous body having properties to absorb the fuel oil.
In the patent application numbered KR20050074279A, “Waterproof Granular Explosive Composition” is explained. A waterproof granular explosive composition which like conventional ANFO explosive, is excellent in handleability, for example, being usable in bulk form and having fluidity and can be produced by an easy process, and which exhibits satisfactory water resistance in an immersion time envisioned in practical use and further
exhibits explosion performance. In particular, an explosive composition comprising porous prill ammonium nitrate and a nitro compound optionally together with an antilocking agent characterized in that a waterproof resin coating film is formed from a thermosetting resin and the above components are covered with the waterproof resin coating film.
High- or low-density ammonium nitrate varieties produced in prill form are described above for use in making explosives. Some ammonium nitrate varieties are produced in pril porous form and in high density. The density of ammonium nitrate grains affects the detonation speed. The higher the density, the smaller the voids present inside the grains, which means that the number of firing centers formed during detonation is reduced. It is found in low concentrations of ammonium nitrates produced in the form of pril. However, its production in pril form increases the process steps and complicates the processes. Production becomes expensive because of the high investment cost.
As a result, there is a need for a new technology that can overcome the disadvantages mentioned above, to be produced in low density granule form, to increase the number of firing centers, to have less production steps and to have a low production cost.
Description of the Invention:
This invention is a low-density ammonium nitrate production method in granule form that can overcome the disadvantages mentioned above, and its feature is; Unlike other production methods, it is produced in low density and granular form, the number of firing centers is increased, production stages are low, investment and production costs are low.
The invention is ammonium nitrate produced in low density and granular form, unlike other production methods. Thanks to its low density, the existing voids in the grains increase, which increases the number of ignition centers formed during detonation. This situation ensures that the desired efficiency is obtained from the ammonium nitrate used in the production of explosives. Thanks to the fact that the product is produced in granule
form while maintaining its low density, more efficient and cheaper production is ensured. Investment and production costs also decrease at the same rate.
It is easy to install thanks to the easy fixing of the parts that make up the invention, and the costs are low due to the short assembly time. In addition, the invention has a solid construction.
Description of the Figures:
The invention will be described with reference to the accompanying figures, so that the features of the invention will be more clearly understood and appreciated, but the purpose of this is not to limit the invention to these certain regulations. On the contrary, it is intended to cover all alternatives, changes and equivalences that can be included in the area of the invention defined by the accompanying claims. The details shown should be understood that they are shown only for the purpose of describing the preferred embodiments of the present invention and are presented in order to provide the most convenient and easily understandable description of both the shaping of methods and the rules and conceptual features of the invention. In these drawings.
Figure 1 A schematic view of the production method of ammonium nitrate.
The figures to help understand the present invention are numbered as indicated in the attached image and are given below along with their names.
Description of References:
10. Grinding and Transporting to the Premixer
20. Pumping
30. Doughing
40. Shaping
50. Elimination of Large Pieces
60. Drying
70. Sifting Small Parts
80. Cooling 90. Packing
Description of The Invention:
The invention in the form of solid ammonium nitrogen nitrate grinding with a grinder and transporting to the premixer (10), ammonium nitrate by the addition of special additives in the solution of the pumping (20) mixer, pre-powdered ammonium nitrate and ammonium nitrate liquid pumped to the mixer to be brought into a doughing (30) and mixed, obtained granulator shaping (40) the dough rolling in rounded grains of ammonium nitrate in the form of granules is greater than 3 millimeters in diameter which is the elimination of the large pieces (50), ammonium nitrate with the help of a dryer grain remaining after the screening process, the humidity inside 0,2% of 1% with the range until it falls to drying (60), smaller than 1 millimeter in diameter of a grain of the dried ammonium nitrate elimination of small parts (70), the second after the process of elimination, the remaining particles of ammonium nitrate is cooled with the help of a cooling (80) equipment and cooled packaged in the desired quantities of packing (90) process steps.
Detailed Description of The Invention:
The steps followed for the production method of the product subject to the invention are basically; grinding and transporting to the premixer (10), pumping (20) to the premixer doughing (30), shaping (40), elimination of the large pieces (50), drying (60), elimination of small parts (70), cooling (80) and packaging (90).
Solid ammonium nitrate is in a warehouse. The process of grinding the 26%-35% nitrogenous ammonium nitrate in solid form in the warehouse with a grinder and transporting it to the premixer (10) takes place. The ammonium nitrate solution at a concentration of 80%-90%, which is kept in a tank as a solution, is pumped to the premixer (20). With the help of a pre-mixer working by a motor, liquid ammonium nitrate
solution and powder ammonium nitrate are mixed and made into doughing (30). Then, the mixture, which takes the consistency of dough in the pre-mixer, is rolled and shaped (40) in the granulator. Elimination of large pieces (50) larger than 3 millimeters are eliminated with the help of a sieve of ammonium nitrate grains, which take the form of granules by rolling in the granulator. The remaining ammonium nitrate grains smaller than 3 millimeters are dried with the help of a drying (60) machine so that the moisture content falls between 0.2% and 1%. Elimination of small parts (70) smaller than 1 millimeter in diameter are sieved from the ammonium nitrate grains whose moisture content falls between 0.2% and 1%. Afterwards, the remaining ammonium nitrate grains are cooled with cooling (80) equipment and packing (90) in desired quantities.
Claims
CLAIMS - The invention relates to the low-density ammonium nitrate production method in granule form, and its feature is; grinding the nitrogenous ammonium nitrate in solid form with a grinder and transporting it to the premixer (10), pumping (20) the ammonium nitrate solution into the pre-mixer by adding special additives, mixing liquid ammonium nitrate solution and powdered ammonium nitrate pumped to the pre-mixer and making it into dough (30), shaping (40) the resulting dough by rolling it in a granulator, elimination of the large pieces (50) larger than 3 millimeters in diameter from ammonium nitrate grains that take the form of granules by rolling, drying (60) the remaining ammonium nitrate grains after the sieving process with the help of a dryer until the moisture content falls between 0.2% and 1%, elimination of small parts(70) smaller than 1 millimeter in diameter from dried ammonium nitrate grains, cooling the ammonium nitrate grains remaining after the second sieving with the help of a cooling (80) equipment, and packing (90) of the cooled grains in the desired quantities process steps. - As mentioned in Claim 1 , it is a low-density ammonium nitrate production method in granule form, and its feature is; it is characterized by the use of solid nitrogenous ammonium nitrate at a rate of 26%-35%. - As mentioned in Claim 1, it is a low-density ammonium nitrate production method in granule form, and its feature is; it is characterized by the ammonium nitrate solution pumped to the pre-mixer at a concentration of 80%-90%. - As mentioned in Claim 1 , it is a low-density ammonium nitrate production method in granule form, and its feature is; it is characterized by the addition of special additives to the ammonium nitrate solution before it is pumped into the pre-mixer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2022/009309A TR2022009309A2 (en) | 2022-06-06 | 2022-06-06 | LOW DENSITY AMMONIUM NITRATE PRODUCTION METHOD IN GRANULAR FORM |
| TR2022/009309 | 2022-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023239321A1 true WO2023239321A1 (en) | 2023-12-14 |
Family
ID=84046664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2023/050169 WO2023239321A1 (en) | 2022-06-06 | 2023-02-21 | Low density ammonium nitrate production method in granular form |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR2022009309A2 (en) |
| WO (1) | WO2023239321A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB992377A (en) * | 1963-05-06 | 1965-05-19 | Grace W R & Co | Process for the production of phosphonitriles |
| EP0552512A1 (en) * | 1991-12-23 | 1993-07-28 | ENICHEM AGRICOLTURA S.p.A. | Process for granulating ammonium nitrate fertilizer |
| RU2344113C1 (en) * | 2007-07-09 | 2009-01-20 | Закрытое акционерное общество "Завод минеральных удобрений Кирово-Чепецкого химического комбината" (ЗАО "ЗМУ КЧХК") | Method of calciumazotosulphate fertiliser production |
| CN104003826A (en) * | 2014-04-30 | 2014-08-27 | 安徽江南化工股份有限公司宁国分公司 | Preparation method for producing powdery emulsion explosive by using liquid ammonium nitrate |
| JP2022191066A (en) * | 2021-06-15 | 2022-12-27 | 株式会社クラレ | Water treatment method and water treatment apparatus |
-
2022
- 2022-06-06 TR TR2022/009309A patent/TR2022009309A2/en unknown
-
2023
- 2023-02-21 WO PCT/TR2023/050169 patent/WO2023239321A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB992377A (en) * | 1963-05-06 | 1965-05-19 | Grace W R & Co | Process for the production of phosphonitriles |
| EP0552512A1 (en) * | 1991-12-23 | 1993-07-28 | ENICHEM AGRICOLTURA S.p.A. | Process for granulating ammonium nitrate fertilizer |
| RU2344113C1 (en) * | 2007-07-09 | 2009-01-20 | Закрытое акционерное общество "Завод минеральных удобрений Кирово-Чепецкого химического комбината" (ЗАО "ЗМУ КЧХК") | Method of calciumazotosulphate fertiliser production |
| CN104003826A (en) * | 2014-04-30 | 2014-08-27 | 安徽江南化工股份有限公司宁国分公司 | Preparation method for producing powdery emulsion explosive by using liquid ammonium nitrate |
| JP2022191066A (en) * | 2021-06-15 | 2022-12-27 | 株式会社クラレ | Water treatment method and water treatment apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| TR2022009309A2 (en) | 2022-06-21 |
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