CN102491860A - On-site mixed and expanded ammonium nitrate explosive and production method thereof - Google Patents

On-site mixed and expanded ammonium nitrate explosive and production method thereof Download PDF

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Publication number
CN102491860A
CN102491860A CN2011103785999A CN201110378599A CN102491860A CN 102491860 A CN102491860 A CN 102491860A CN 2011103785999 A CN2011103785999 A CN 2011103785999A CN 201110378599 A CN201110378599 A CN 201110378599A CN 102491860 A CN102491860 A CN 102491860A
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China
Prior art keywords
ammonium nitrate
explosive
site mixed
site
expanded ammonium
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Pending
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CN2011103785999A
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Chinese (zh)
Inventor
刘世坤
沈跃华
周佐玉
沈建军
陈筛阳
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XINJIANG TIANHE CHEMICAL CO Ltd
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XINJIANG TIANHE CHEMICAL CO Ltd
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Priority to CN2011103785999A priority Critical patent/CN102491860A/en
Publication of CN102491860A publication Critical patent/CN102491860A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an on-site mixed and expanded ammonium nitrate explosive and a production method thereof, belonging to the technical field of explosives and the production method thereof. The on-site mixed and expanded ammonium nitrate explosive comprises the following components in part by weight: 94-96.5 parts of expanded ammonium nitrate and 3.5-6 parts of diesel oil. The expanded ammonium nitrate is prepared in advance, and the expanded ammonium nitrate and the diesel oil are mixed by an on-site explosive mixing vehicle on a blasting site. The on-site mixed and expanded ammonium nitrate explosive does not have the detonator sensitivity, and compared with the porous granular anfo explosive, the on-site mixed and expanded ammonium nitrate explosive has lower density, high performance, and higher explosive loading volume ratio of the blasthole. In the production method, the explosive manufacturing process and the blasthole loading process are carried out on a construction site at the same time, and before mixing, only raw materials or semifinished products are stored on the blasting site, so that the production safety and the loading safety are obviously improved and a requirement on the storage stability of the explosive is greatly reduced.

Description

On-site mixed bulking ammonium nitrate explosive and working method thereof
Technical field
The invention belongs to explosive and working method technical field thereof, be specifically related to a kind of on-site mixed bulking ammonium nitrate explosive and working method thereof.
Background technology
Known on-site mixed explosive is on-site mixed porous particulated ammonium oil explosive and on-site mixed emulsion [explosive; Along with the consumption of on-site mixed explosive in the blasting works field increases day by day; Demand to the porous and granular ammonium nitrate that is used to prepare on-site mixed porous particulated ammonium oil explosive is also increasing; But domestic porous and granular ammonium nitrate production capacity wretched insufficiency when promoting on-site mixed explosive, is badly in need of the substitute of porous particulated ammonium oil explosive.Chinese patent document CN101591210A discloses a kind of sensitizing type expanded ammonium nitrate fuel oil explosive and preparation method thereof, and this explosive is mixed and made into by expanded ammonium nitrate 84~95%, Nitromethane 99Min. 1~11% and compounded oil 4~5%.Chinese patent document CN101684055A discloses a kind of bulking ammonium nitrate explosive of energy-conserving and environment-protective, and its component is 80.5~94.5 parts of expanded ammonium nitrates, 1.4~4.5 parts of oil phases, 2.5~5.5 parts of straw powder, 0~12 part of salt.But the mode of production of above explosive all is in the fixedly worker-house of fixing factory, to carry out, and compares on-site mixed mode, and this kind explosive has factors such as cap-sensitivity, operator are many, and the production of explosive and powder charge security are lower.
Summary of the invention
The object of the invention provides a kind of safe on-site mixed bulking ammonium nitrate explosive of cap-sensitivity, production and powder charge that do not have.
Another object of the present invention provides a kind of working method of on-site mixed bulking ammonium nitrate explosive.
The object of the invention is realized through following technical scheme:
A kind of on-site mixed bulking ammonium nitrate explosive is characterized in that, according to the parts by weight meter, it consists of: 94~96.5 parts of expanded ammonium nitrates, 3.5~6 parts of diesel oil.
Further, described expanded ammonium nitrate is made up of 99.85~99.92 parts industrial ammonium nitrate, 0.08~0.15 part tensio-active agent by weight.
Further, described tensio-active agent is the mixture of one or any two kinds and two or more compositions in octadecane amine acetate, octadecane amine phosphate, octadecane amine hydrochlorate, octadecane amine vitriol, the octadecane amine nitrate salt.
Further, the tap density of described expanded ammonium nitrate is 0.50~0.65g/cm 3
A kind of working method of on-site mixed bulking ammonium nitrate explosive is characterized in that, the working method of said on-site mixed bulking ammonium nitrate explosive is:
The first step, the preparation of expanded ammonium nitrate: (a) industrial ammonium nitrate of requirement and water being mixed with mass percentage concentration is 90%~95% ammonium nitrate solution, and is heated to 120~130 ℃; (b) tensio-active agent that melts is joined in the ammonium nitrate solution that step (a) prepared by requirement, stir; (c) the prepared solution of step (b) is carried out vacuum-drying, make the moisture weight content less than 0.3% expanded ammonium nitrate;
Second step, expanded ammonium nitrate is packed in the ammonium nitrate materials-stored box of on-site mixed explosives truck, diesel oil is packed in the fuel reserve tank of on-site mixed explosives truck;
The 3rd step, on-site mixed explosives truck is opened to explosion on-the-spot, after press proportional quantity and setting the proportioning of expanded ammonium nitrate and diesel oil, start on-site mixed explosives truck worm conveyor and injection system and mix, continuous in simultaneously the explosive injection big gun hole that mixes.
Beneficial effect: on-site mixed bulking ammonium nitrate explosive of the present invention does not have cap-sensitivity, compares with porous particulated ammonium oil explosive, and its density is lower; Performance is higher; The blast hole projectile filling volume ratio is high, and the ore boulder yield is low after the explosion, and its working method has been simplified the production of explosive and used operation; Explosive manufacturing, blast hole projectile filling carry out simultaneously at the construction field (site); The explosion stored on-site all is starting material or work in-process before the system of mixing, thereby production significantly improves with the powder charge security, and the stability in storage of explosive is required also reduction greatly.
Embodiment
Below in conjunction with specific embodiment the present invention is described further, rather than to the restriction of protection scope of the present invention.
Embodiment 1
To be mixed with mass concentration be 90~95% ammonium nitrate solution and be heated to 120 ℃ to 130 ℃ with 99.85~99.92 parts industrial ammonium nitrates and an amount of water; Join the tensio-active agent octadecane amine acetate of 0.08~0.15 part thawing in the ammonium nitrate solution that is prepared again and stir; The ammonium nitrate solution that then gained is contained tensio-active agent is not less than in vacuum tightness and carries out vacuum-drying under the 0.08MPa, make moisture by weight percentage less than 0.3%, tap density is 0.5~0.65g/cm 3Expanded ammonium nitrate.The production of expanded ammonium nitrate can be carried out in the factory building of production crystallization ammonium nitrate.
The expanded ammonium nitrate that makes is packed in the ammonium nitrate materials-stored box of on-site mixed explosives truck; Diesel oil is packed in the fuel reserve tank of on-site mixed explosives truck; On-site mixed explosives truck is opened to the explosion scene, and the weight proportion of setting expanded ammonium nitrate and diesel oil is 94:6, starts on-site mixed explosives truck worm conveyor and injection system and mixes; Continuously the explosive that mixes is injected the big gun hole simultaneously, the weight ratio that makes expanded ammonium nitrate and diesel oil is the on-site mixed bulking ammonium nitrate explosive of 94:6.On-site mixed explosives truck used in the present invention is available from Xinghua, Jiangsu slab bridge mining machinery ltd, the BC12 type, and employed tensio-active agent is available from strong Weisheng, Beijing generation Science and Technology Ltd. among present embodiment and following each embodiment.
Embodiment 2
The weight ratio that makes expanded ammonium nitrate and diesel oil by embodiment 1 described step is the on-site mixed bulking ammonium nitrate explosive of 94.5:5.5; Be that with different in the embodiment 1 said step used tensio-active agent is the octadecane amine phosphate, and the weight proportion of setting expanded ammonium nitrate and diesel oil is 94.5:5.5.
Embodiment 3
The weight ratio that makes expanded ammonium nitrate and diesel oil by embodiment 1 described step is the on-site mixed bulking ammonium nitrate explosive of 95.0:5.0; Be that with different in the embodiment 1 said step used tensio-active agent is an octadecane amine vitriol, and the weight proportion of setting expanded ammonium nitrate and diesel oil is 95.0:5.0.
Embodiment 4
The weight ratio that makes expanded ammonium nitrate and diesel oil by embodiment 1 described step is the on-site mixed bulking ammonium nitrate explosive of 95.5:4.5; Be that with different in the embodiment 1 said step used tensio-active agent is that octadecane amine phosphate and octadecane amine hydrochlorate weight ratio are the mixture of 1:1, and the weight proportion of setting expanded ammonium nitrate and diesel oil is 95.5:4.5.
Embodiment 5
The weight ratio that makes expanded ammonium nitrate and diesel oil by embodiment 1 described step is the on-site mixed bulking ammonium nitrate explosive of 96.0:4.0; Be that with different in the embodiment 1 said step used tensio-active agent is that octadecane amine acetate and octadecane amine vitriol weight ratio are the mixture of 1:2, and the weight proportion of setting expanded ammonium nitrate and diesel oil is 96.0:4.0.
Embodiment 6
The weight ratio that makes expanded ammonium nitrate and diesel oil by embodiment 1 described step is the on-site mixed bulking ammonium nitrate explosive of 96.5:3.5; Be that with different in the embodiment 1 said step used tensio-active agent is that octadecane amine hydrochlorate, octadecane amine vitriol and octadecane amine nitrate salt weight ratio are the mixture of 1:1:2, and the weight proportion of setting expanded ammonium nitrate and diesel oil is 96.5:3.5.
Embodiment 1~6 prepared on-site mixed bulking ammonium nitrate explosive is tested; It is average out to as a result: brisance 16.3 mm, explosion velocity 3280 m/s; (GB17583) compares with on-site mixed porous particulated ammonium oil explosive, and the performance of on-site mixed bulking ammonium nitrate explosive of the present invention is higher.

Claims (5)

1. an on-site mixed bulking ammonium nitrate explosive is characterized in that, according to the parts by weight meter, it consists of: 94~96.5 parts of expanded ammonium nitrates, 3.5~6 parts of diesel oil.
2. on-site mixed bulking ammonium nitrate explosive according to claim 1 is characterized in that, described expanded ammonium nitrate is made up of 99.85~99.92 parts industrial ammonium nitrate, 0.08~0.15 part tensio-active agent by weight.
3. on-site mixed bulking ammonium nitrate explosive according to claim 2; It is characterized in that described tensio-active agent is the mixture of one or any two kinds and two or more compositions in octadecane amine acetate, octadecane amine phosphate, octadecane amine hydrochlorate, octadecane amine vitriol and the octadecane amine nitrate salt.
4. on-site mixed bulking ammonium nitrate explosive according to claim 1 and 2 is characterized in that, the tap density of described expanded ammonium nitrate is 0.50~0.65g/cm 3
5. the working method of an on-site mixed bulking ammonium nitrate explosive is characterized in that, the working method of said on-site mixed bulking ammonium nitrate explosive is:
The first step, the preparation of expanded ammonium nitrate: (a) industrial ammonium nitrate of requirement and water being mixed with mass percentage concentration is 90%~95% ammonium nitrate solution, and is heated to 120~130 ℃; (b) tensio-active agent that melts is joined in the ammonium nitrate solution that step (a) prepared by requirement, stir; (c) the prepared solution of step (b) is carried out vacuum-drying, make the moisture weight content less than 0.3% expanded ammonium nitrate;
Second step, expanded ammonium nitrate is packed in the ammonium nitrate materials-stored box of on-site mixed explosives truck, diesel oil is packed in the fuel reserve tank of on-site mixed explosives truck;
The 3rd step, on-site mixed explosives truck is opened to explosion on-the-spot, after press proportional quantity and setting the proportioning of expanded ammonium nitrate and diesel oil, start on-site mixed explosives truck worm conveyor and injection system and mix, continuous in simultaneously the explosive injection big gun hole that mixes.
CN2011103785999A 2011-11-24 2011-11-24 On-site mixed and expanded ammonium nitrate explosive and production method thereof Pending CN102491860A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102675011A (en) * 2012-07-02 2012-09-19 大连安泰化工有限公司 Production method and device of anfo explosives
CN104154833A (en) * 2014-08-08 2014-11-19 广西华锡集团股份有限公司铜坑矿 Automatic mixing and charging device of mining explosive and oil
CN113045368A (en) * 2021-03-31 2021-06-29 神华准格尔能源有限责任公司 Ammonium nitrate fuel oil explosive containing water-melting active additive and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1280973A (en) * 2000-06-29 2001-01-24 蔡剑斌 Low-density snow-like ammonium nitrate and its preparing process
CN1821189A (en) * 2006-02-27 2006-08-23 广东省四○一厂 Method for preparing high density bulking ammonium nitrate explosive
CN101898920A (en) * 2010-08-24 2010-12-01 新疆天河化工有限公司 Expanded ammonium nitrate and production method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1280973A (en) * 2000-06-29 2001-01-24 蔡剑斌 Low-density snow-like ammonium nitrate and its preparing process
CN1821189A (en) * 2006-02-27 2006-08-23 广东省四○一厂 Method for preparing high density bulking ammonium nitrate explosive
CN101898920A (en) * 2010-08-24 2010-12-01 新疆天河化工有限公司 Expanded ammonium nitrate and production method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102675011A (en) * 2012-07-02 2012-09-19 大连安泰化工有限公司 Production method and device of anfo explosives
CN104154833A (en) * 2014-08-08 2014-11-19 广西华锡集团股份有限公司铜坑矿 Automatic mixing and charging device of mining explosive and oil
CN113045368A (en) * 2021-03-31 2021-06-29 神华准格尔能源有限责任公司 Ammonium nitrate fuel oil explosive containing water-melting active additive and preparation method and application thereof

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Application publication date: 20120613