CN1266089C - Process for recovering waste latex explosive - Google Patents
Process for recovering waste latex explosive Download PDFInfo
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- CN1266089C CN1266089C CN 200410027827 CN200410027827A CN1266089C CN 1266089 C CN1266089 C CN 1266089C CN 200410027827 CN200410027827 CN 200410027827 CN 200410027827 A CN200410027827 A CN 200410027827A CN 1266089 C CN1266089 C CN 1266089C
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Abstract
The present invention relates to a method for recovering a waste emulsion explosive, which comprises the following steps that (1). 95.5 to 99.5% of emulsion explosive is taken according to weight percentage to be heated to break emulsion, temperature is 80 to 100 DEG C, and stir is carried out for 20 to 25 minutes. (2) 0.1 to 3.3% of compound oil phase is added and emulsified, and emulsification time is 20 to 30 minutes. (3) 0.4 to 4.4% of emulsification foaming agent is added and mixed for five to ten minutes. The present invention has the advantages of low temperature, low speed emulsification, few processing steps, safety, reliability and easy operation. ' Three waste ' pollution does not occur in the process of recovery processing, recovering rate reaches up to more than 95 percent, and quality can reach Chinese Standard. The present invention is extensively suited to recover a waste emulsion explosive for chemical sensitization.
Description
Technical field
The present invention relates to the recovery method of a kind of recovery method, particularly a kind of waste and old emulsion explosive.
Background technology
Emulsion explosive is to be that disperse phase, oil phase are external phase with the water, the industrial explosive of a kind of water-in-oil-type of making, because temperature variation and raw-material shelf-life are long when production, use, storage, make emulsion explosive internal penetration Hair Fixer give birth to local fission, partial crystallization, demulsifying phenomenon appear, blast performance indexs such as the explosion velocity of emulsion explosive, induced detonation descend significantly, cause emulsion explosive expired and scrap.Because waste and old emulsion explosive can not get appropriate processing in time, bring bigger loss for production and applying unit, destroy emulsion explosive if adopt the hole to bury with combustion method, not only cause damage to manufacturing enterprise, and can direct contaminate environment.
Summary of the invention
Purpose of the present invention just provides a kind of scrapping or the recovery method of the emulsion explosive that the shelf-life is long.
Principle of the present invention be adopt heat, the physico-chemical process of dissolving, breakdown of emulsion, reemulsification reclaims waste and old emulsion explosive, make the emulsion explosive of scrapping the originally continuation breakdown of emulsion of heating, make it return to original water fine particle state, add a certain amount of oil phase material and carry out emulsification once more, strengthen interfacial film, stop freely spreading of osmotic pressure, form new true emulsion system.
The present invention can be realized by following mode: (1) gets 95.5～99.5% emulsion explosives breakdown of emulsion of heating by weight percentage, and 80～100 ℃ of temperature stirred 20～25 minutes; (2) add 0.1～3.3% compound oil phase, emulsification, emulsification times 20～30 minutes; (3) add 0.4～4.4% emulsification foaming agent, mixed 5～10 minutes.Compound oil phase is the mixture of modified span-80 emulsifying agent, paraffin and Vaseline, and its weight ratio is 1: 1: 1.Modified span-80 emulsifying agent is the mixture of soyflour emulsifying agent and Span-80 emulsifying agent, and the ratio of its weight percent is: 40-60: 60-40.Emulsification foaming agent adds 0.05-0.5% phosphoric acid, 0.05-0.5% thiocarbamide, 20% Span-80 emulsifying agent, 39-59% diesel oil or lubricating oil emulsion and forms for the 20-40% nitroso compound by weight percent is the basis.
Low temperature of the present invention, low speed emulsification, processing step is few, and is safe and reliable, and easy handling does not have " three wastes " and pollutes in the recycling process, and recovery utilization rate is up to more than 95%, and quality can reach GB, and the waste emulsified explosive that is widely used in chemical sensitization reclaims.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment one
The emulsion explosive that to scrap is put into waste and old emulsion explosive handler for 99.45 kilograms, the breakdown of emulsion of heating, 80 ℃ of temperature, stirred 25 minutes, add 0.05 kilogram of modified span-80 emulsifying agent, 0.05 kilogram of industrial paraffin and 0.05 kilogram of industrial vaseline again, 0.05 kilogram modified span-80 emulsifying agent is by 0.02 kilogram of soyflour emulsifying agent and 0.03 kilogram of compound that the Span-80 emulsifying agent is formed, carry out 82 rev/mins emulsification, the water particle that makes it original breakdown of emulsion carries out again oil phase and coats emulsification times 20 minutes.After waiting to be completed into new stable latex system, add the agent of 0.4 kilogram of emulsification fast foaming again, to be 0.16 kilogram of nitroso compound be the basis to emulsification foaming agent, adds 0.002 kilogram of phosphoric acid, 0.002 kilogram of thiocarbamide, 0.08 kilogram of Span-80 emulsifying agent, 0.156 kilogram of diesel emulsion and form; Behind the remix 10 minutes, carry out the nature cooling, cooling can be sent to the emulsion explosive that different size is dressed up in cartridging, the emulsion explosive double centner below 50 ℃.
The Span-80 emulsifying agent is a Sorbitol Powder list olein.Its acid number≤8 milligram KOH/ gram; Saponification value 145-160 milligram KOH/ gram; Hydroxyl value 190-220 milligram KOH/ gram; It has good emulsifying, dispersing property, but Span-80 has bigger osmosis.The stabilising system that makes it emulsification formation often damages, and makes emulsion explosive partial crystallization, breakdown of emulsion occur, shorten storage period.In order to change the undesirable feature of Span-80 emulsifying agent, add the soyflour emulsifying agent Span-80 emulsifying agent is carried out modification.The soyflour emulsifying agent is to be raw material with the soybean, through a kind of food emulsifier that forms with concentration 70-99% alcohol immersion after peeling, the pulverizing.It can impel immiscible liquid such as oil phase and water to form the additive of stabilized emulsion.Intramolecularly has extremely strong oleophilic group, and the interface of Yi Zaishui and oil forms adsorption layer, increases oil film strength.Change the linear structure of macromolecular solution, form stable reticulated structure, stop freely spreading of osmotic pressure.So, after the soyflour emulsifying agent of employing 40-60% and 40-60% Span-80 emulsifying agent chemical combination use, promptly formed polyol fatty acid, changed the hydrophile-lipophile balance value of Span-80 emulsifying agent, i.e. the HLB value.
After 40-60% Span-80 emulsifying agent and the 40-60% soyflour emulsifier mix, the acid number of its emulsifying agent is a 7.61-12.53 milligram KOH/ gram after testing; Saponification value is a 167.55-175.86 milligram KOH/ gram.
Embodiment two
The emulsion explosive that shelf-life is long is put into waste and old emulsion explosive handler for 95.5 kilograms, the breakdown of emulsion of heating, 100 ℃ of temperature, stirred 20 minutes, add 1 kilogram of modified span-80 emulsifying agent, 1 kilogram of industrial paraffin and 1 kilogram of industrial vaseline again, 1 kilogram of modified span-80 emulsifying agent carries out 60 rev/mins emulsification by 0.6 kilogram of soyflour emulsifying agent and 0.4 kilogram of compound that the Span-80 emulsifying agent is formed, the water particle that makes it original breakdown of emulsion carries out again oil phase and coats emulsification times 30 minutes.After waiting to be completed into new stable latex system, add the agent of 1.5 kilograms of emulsification fast foamings again, to be 0.3135 kilogram of nitroso compound be the basis to emulsification foaming agent, adds 0.00075 kilogram of phosphoric acid, 0.00075 kilogram of thiocarbamide, 0.3 kilogram of Span-80 emulsifying agent, 0.885 kilogram of lubricating oil emulsion and form; Behind the remix 5 minutes, carry out the nature cooling, cooling can be sent to the emulsion explosive that different size is dressed up in cartridging, the emulsion explosive double centner below 50 ℃.
The applicant adopted the present invention to reclaim 71 tons of waste and old emulsion explosives in 2003.
According to the GB18095-2000 Emulsion Explosive Standard, testing environment is normal temperature, normal pressure.
Store explosion properties index (averaging) after six months
1. gap distance: 4cm is explosion velocity 2.: 3932m s
-13. brisance: 16.12mm
9, specimen test detail record (averaging)
The waste and old emulsion explosive test sample of table 1 performance variation (Φ 32-200g powder stick mensuration)
| Period of storage (moon) | Gap distance (cm) | Explosion velocity (m s -1) | Brisance (mm) | The medicine attitude |
| 0 | 8 | 4854 | 19.16 | Flexible |
| 1 | 8 | 4808 | 19.04 | Flexible |
| 2 | 7 | 4387 | 17.96 | Flexible |
| 3 | 7 | 4465 | 18.12 | Flexible |
| 4 | 6 | 4292 | 17.74 | Flexible |
| 5 | 6 | 4132 | 16.69 | Flexible |
| 6 | 4 | 3932 | 16.12 | Flexible |
The waste and old emulsion explosive using method of recycling and the using method of generic latex explosive are basic identical, owing in removal process, added a certain amount of oil phase material, so it is dense slightly to reclaim back emulsion explosive explosion time smog, smokes and get final product if can strengthen air draft in the tunnel, during the mine explosion.
Claims (4)
1, a kind of recovery method of waste and old emulsion explosive is characterized in that:
(1) get 95.5～99.5% emulsion explosives breakdown of emulsion of heating by weight percentage, 80～100 ℃ of temperature stirred 20～25 minutes;
(2) add 0.1～3.3% compound oil phase, emulsification, emulsification times 20～30 minutes;
(3) add 0.4～4.4% emulsification foaming agent, mixed 5～10 minutes.
2, recovery method according to claim 1 is characterized in that compound oil phase is the mixture of modified span-80 emulsifying agent, paraffin and Vaseline, and its weight ratio is 1: 1: 1.
3, recovery method according to claim 2 is characterized in that modified span-80 emulsifying agent is the mixture of soyflour emulsifying agent and Span-80 emulsifying agent, and the ratio of its weight percent is: 40-60: 60-40.
4, recovery method according to claim 1, it is characterized in that emulsification foaming agent is that 20-40% nitroso compound by weight percent is the basis, adds 0.05-0.5% phosphoric acid, 0.05-0.5% thiocarbamide, 20% Span-80 emulsifying agent, 39-59% diesel oil or lubricating oil emulsion and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410027827 CN1266089C (en) | 2004-06-26 | 2004-06-26 | Process for recovering waste latex explosive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410027827 CN1266089C (en) | 2004-06-26 | 2004-06-26 | Process for recovering waste latex explosive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1594242A CN1594242A (en) | 2005-03-16 |
| CN1266089C true CN1266089C (en) | 2006-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410027827 Expired - Fee Related CN1266089C (en) | 2004-06-26 | 2004-06-26 | Process for recovering waste latex explosive |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357232C (en) * | 2006-04-14 | 2007-12-26 | 安徽盾安化工集团有限公司 | Waste emulsified explosive and method for reclaiming matrix thereof |
| CN101219263B (en) * | 2008-01-18 | 2011-01-12 | 南京理工大学 | Explosion elimination liquid |
| CN101870626B (en) * | 2010-06-18 | 2014-08-27 | 广东华威化工集团有限公司 | Fast sensitizer for emulsion explosive |
| CN102515988B (en) * | 2011-12-09 | 2013-01-02 | 煤炭科学研究总院爆破技术研究所 | Method for preparation of emulsion explosive by using waste explosives |
| CN103145513B (en) * | 2013-03-30 | 2015-05-27 | 中煤科工集团淮北爆破技术研究院有限公司 | Production method of waste-containing powdery emulsion explosive |
| CN103396272A (en) * | 2013-07-30 | 2013-11-20 | 四川雅化实业集团股份有限公司 | Method for recycling waste emulsion explosive in rock powder emulsion explosive |
| CN106748588B (en) * | 2017-03-03 | 2019-02-26 | 马鞍山江南化工有限责任公司 | Processing unit, processing system and its processing method that waste emulsion explosive recycles |
| CN109651024A (en) * | 2018-11-12 | 2019-04-19 | 中煤科工集团淮北爆破技术研究院有限公司 | The method and emulsion recycled based on unqualified emulsion |
| CN109704890A (en) * | 2019-01-25 | 2019-05-03 | 湖南雷鸣西部民爆有限公司 | A kind of method of industrial emulsion explosive rejected product processing |
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