CN1266090C - Process for continuously preparing powdered industrial explosive without TNT - Google Patents
Process for continuously preparing powdered industrial explosive without TNT Download PDFInfo
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- CN1266090C CN1266090C CN 200410051291 CN200410051291A CN1266090C CN 1266090 C CN1266090 C CN 1266090C CN 200410051291 CN200410051291 CN 200410051291 CN 200410051291 A CN200410051291 A CN 200410051291A CN 1266090 C CN1266090 C CN 1266090C
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Abstract
The present invention relates to a method for continuously producing powdery industrial explosive without TNT, which has the following steps: (1) according to a weight percentage, 85 to 93% of ammonium nitrate is taken and is broken, and is pulverized and dried after the ammonium nitrate is mixed with 0.1 to 0.5% of additive, fineness makes more than 90% of mixture pass through a screen of 60 meshes, the mixture is milled at the machine temperature of 100 DEG C to 115 DEG C, and milling time is from 3 to 10 minutes; (2) materials after being milled are mixed with 2 to 4% of oil phase, mixtures are milled at the machine temperature of 80 DEG C to 100 DEG C, milling time is from 3 to 5 minutes, and material discharging temperature is from 65 DEG C to 85 DEG C; (3) the mixture of the upper working procedure is mixed and milled with 3 to 8% of auxiliary material, material discharging temperature is from 45 DEG C to 55 DEG C, fineness makes 88% of the mixture pass through a screen of 40 meshes, and a water content is smaller than or equal to 0.15%. The present invention can be used for continuous production and has the characteristics of high labor efficiency and stable quality. The quantitative transportation of the materials of the present invention is controlled by an automatic close loop, a flux implements PID adjustment, a system is in a dynamic balance state all the time, and the accurate proportion of the materials specified by a process prescription is ensured.
Description
Technical field
The present invention relates to the method that a kind of non-TNT powder industrial explosive serialization is produced.
Background technology
At present, domestic non-TNT powder explosive kind is more, mainly contains bulking ammonium nitrate explosive, powdery emulsifying explosive and modified ammonium nitrate-fuel oil explosive etc.With regard to technology, the above two have realized serialization production substantially.But bulking ammonium nitrate explosive is because investment of production equipment is big, and ammonium nitrate is after puffing, and surface-area increases greatly and causes charge density on the low side, has influenced the detonation property of explosive; Powdery emulsifying explosive is except that facility investment is big, and its technical difficulty is also bigger, and production technique is complicated, and also there is certain difficulty in powder charge; And being patent No. ZL 00126110.X, modified ammonium nitrate-fuel oil explosive still adopts traditional air-flow one rolling production technique, amount with every 250Kg is carried out discontinuous production, operator are many, technology is backward, efficient is low, and quality product is stable inadequately, does not meet the requirement of the quick-fried industry development of the people simultaneously.And the quick-fried industry requirement explosive production of the people develops to the serialization automation direction, therefore, need improve innovation to the production technique of modified ammonium nitrate-fuel oil explosive, change that its operator are many, technology is backward, efficient is low, the unsettled defective of quality, realize serialization production.
Summary of the invention
Purpose of the present invention just provides the preparation method that a kind of non-TNT powder industrial explosive serialization is produced.
The present invention can be realized by following mode: (1) gets 85～93% ammonium nitrate fragmentations by weight percentage, after 0.1～0.5% additive mixes, pulverizes, dry, fineness is crossed 60 mesh sieves more than 90%, mill grinding time 3～10 minutes under 100～115 ℃ of machine temperature; (2) material after milling mixes with 2～4% oil phases, mills grinding time 3～5 minutes, 65～85 ℃ of drop temperatures under 80～100 ℃ of machine temperature; (3) compound that will go up operation mixes with 3～8% auxiliary materials, mill, and 45～55 ℃ of drop temperatures, fineness 88% is crossed 40 mesh sieves, moisture content≤0.15%.Oil phase is the mixture of compound special-purpose grease, department's benzene-80, soybean phospholipid.Additive is sodium lauryl sulphate, octadecane amine, alkyl sodium sulfate fat, potassium primary phosphate, talcum, magnesite and whiting, selects the mixture of its 2～3 kinds of compositions.Auxiliary material is wood powder and rosiny mixture, and its weight ratio is 9～10: 1.
Serialization of the present invention is produced, and has the efficiency height, stay-in-grade characteristics, the quantitative conveying of material of the present invention is by frequency transformer---and motor is formed automated closed-loop control, flow is carried out PID and is regulated, and system is in dynamic balance state all the time, guarantees the accurate proportioning of material of technical recipe defined.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment one
91.3 kilograms of ammonium nitrate are dropped in the crusher, ammonium nitrate after the fragmentation enters the conveyor screw machine continuously, 0.2 the kilogram additive is imported continuously by feeder, additive is by 0.1 kilogram of octadecane amine and 0.1 kilogram of mixture that magnesite is formed, ammonium nitrate with pulverize after additive mixes, the hot blast delivery system is carried out drying to the material after pulverizing, dried material fineness 90% is crossed 60 mesh sieves, mill in 102 ℃ of even continuously down engagements of machine temperature, grinding time is 8 minutes, 96 ℃ of drop temperatures; Material after milling and 3.5 kilograms of oil phases carry out abundant pre-mixing, mix and mill, the temperature of milling is 95 ℃, grinding time is 4 minutes, 80 ℃ of drop temperatures, oil phase is by the mixture of 3.32 kilograms of compound special-purpose greases, 0.15 kilogram of department's benzene-80 and 0.03 kilogram soybean phospholipid, drops into fusing in the molten copper jar, 83 ℃ of temperature; The material of discharging in continuous course of conveying, progressively is cooled to material 65 ℃ by the worm conveyor with refrigerating function continuously, after 5 kilograms of auxiliary material pre-mixings, auxiliary material is wood powder and rosiny mixture, and wood powder by 30 mesh sieves, drops in the drying machine dry more than 88%, dried 4.5 kilograms of wood powders mix with 0.5 kilogram of rosiny, mix the cooling discharging of milling, 48 ℃ of drop temperatures, fineness 88% is crossed 40 mesh sieves, moisture content 0.13% makes the powder industrial explosive of double centner.
After testing, explosion velocity of the present invention is not less than 3200m/s, induced detonation and is not less than that 4cm, brisance are not less than 12mm, capacity for work is not less than 320ml, and performance index are not less than 2# rock powdery an-tnt explosive national standard.
Claims (4)
1, a kind of non-TNT powder industrial explosive continuous preparation method is characterized in that:
(1) get 85～93% ammonium nitrate fragmentations by weight percentage, after 0.1～0.5% additive mixes, pulverize, drying, fineness be mistake 60 mesh sieves 90% or more, mill grinding time 3～10 minutes under 100～115 ℃ of machine temperature;
(2) material after milling mixes with 2～4% oil phases, mills grinding time 3～5 minutes, 65～85 ℃ of drop temperatures under 80～100 ℃ of machine temperature;
(3) compound that will go up preface mixes with 3～8% auxiliary materials, mill, and 45～55 ℃ of drop temperatures, fineness 88% is crossed 40 mesh sieves, moisture content≤0.15%.
2, preparation method according to claim 1 is characterized in that oil phase is the mixture of compound special-purpose grease, department's benzene-80, soybean phospholipid.
3, preparation method according to claim 1 is characterized in that additive is sodium lauryl sulphate, octadecane amine, alkyl sodium sulfate fat, potassium primary phosphate, talcum, magnesite and whiting, selects the mixture of its 2～3 kinds of compositions.
4, preparation method according to claim 1 is characterized in that auxiliary material is wood powder and rosiny mixture, and its weight ratio is 9～10: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410051291 CN1266090C (en) | 2004-08-29 | 2004-08-29 | Process for continuously preparing powdered industrial explosive without TNT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410051291 CN1266090C (en) | 2004-08-29 | 2004-08-29 | Process for continuously preparing powdered industrial explosive without TNT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1587237A CN1587237A (en) | 2005-03-02 |
| CN1266090C true CN1266090C (en) | 2006-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410051291 Expired - Fee Related CN1266090C (en) | 2004-08-29 | 2004-08-29 | Process for continuously preparing powdered industrial explosive without TNT |
Country Status (1)
| Country | Link |
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| CN (1) | CN1266090C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396279B (en) * | 2013-07-25 | 2016-08-10 | 潍坊龙海民爆有限公司 | A kind of rock type low temperature agglomeration resistance modified ammonium nitrate-fuel oil explosive and preparation method thereof |
| CN105461495A (en) * | 2015-12-04 | 2016-04-06 | 湖北凯龙化工集团股份有限公司 | Continuous production process for powdery industrial explosive for metal explosion cladding |
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2004
- 2004-08-29 CN CN 200410051291 patent/CN1266090C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1587237A (en) | 2005-03-02 |
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Granted publication date: 20060726 Termination date: 20120829 |