Powdery modified ammonium nitrate fuel oil for coal mine
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A ammonium oil explosive and modification technology, which is applied in explosives, explosives processing equipment, offensive equipment, etc., can solve problems such as TNT pollution, achieve the effect of no reduction in explosive performance, increase of contact area, and long-term pollution of the environment
Inactive Publication Date: 2009-01-14
盛世平
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[0003] The purpose of this invention is to provide a kind of coal mine permitted powdery modified ammonium oil explosives, which can not only improve the product performance, but also increase the intrinsic safety, reduce the product cost, improve the working conditions of workers, and completely solve the problem of TNT pollution to the environment
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Embodiment 1
[0036] The formula of Example 1 is: (mass percentage) ammonium nitrate 76.5, modified wood flour 5, special oil phase 3.0, industrial salt 15, modifier 0.5.
Embodiment 2
[0037] The formula of Example 2 is: (mass percentage) ammonium pinate 72.5, modified wood powder 4.5, special oil phase 2.5, industrial salt 20, modifier 0.5.
Embodiment 3
[0038] The formula of Example 3 is: (mass percentage) ammonium nitrate 70.7, modified wood powder 5, special oil phase 3, water-resistant agent 0.8, industrial salt 20, modifier 0.5.
[0039]When one-stage production is adopted, the production process is as follows:
[0040] Ammonium nitrate pulverized metering, water repellant,
[0041] When using the two-stage method for production, the production process is as follows:
[0042] (1) High temperature heavy weight drying ammonium nitrate
[0043]
[0044] (2) Low temperature and medium weight mixed medicine
[0045]
[0046] The specific differences between the production process of powdered modified ammonium oil explosives allowed in coal mines and the production process of ammonium ladder explosives allowed in coal mines are as follows:
[0047] 1. Adjust the drying temperature and drying time.
[0048] 2. Adjusted the feeding order.
[0049] 3. Drying time and feeding sequence are the key factors affectin...
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Abstract
The invention disclosed a kind of powdered reshaped ammonio oil dynamite which is allowed to be used in coal mines. The dynamite is mainly constituted by 68.6-80 part (by weight) of ammonium nitrate, 4-6 parts (by weight) of reshaped wood powder, 1.6-3 parts of compound oil phase, 14-21 parts of industrial salt, 0.3-0.5 part of modifier and 0-1.0 part of water repellent agent. The invention can use the present producing devices to produce the dynamite in one stage or two stages which decreases the one time cost of the producing line substantially. The TNT element is totally omitted in the invention through the regulated formula and producing technologies as well as the new materials. The quality of the product has achieved or surpassed the technological standard of dynamites which is allowed to be used for coal mines in GB12437-2000. It has solved all the problems in many factories that produce the coal mine dynamites by edge-runner; besides, it is in line with the policies and requests in civilian exploding industry.
Description
1. Technical field [0001] The invention belongs to the technical field of civil blasting equipment, and in particular relates to a coal mine-approved powdery stepless explosive and a manufacturing method thereof. 2. Background technology [0002] At present, among the types of explosives allowed in domestic coal mines, ammonium-ladder explosives in coal mines are listed as phase-out products because they contain 10% TNT, and they will be replaced by ladder-free explosives in coal mines. So far, emulsified and expanded stepless coal mine explosives have been produced and used as substitute products throughout the country. But these two kinds of products also have many shortcomings and deficiencies, and are restricted. For example, emulsion explosives, although the product performance is superior to other similar products, but the detonation sensitivity is high, the risk factor is large, there are great safety hazards in production, and some safety problems have not yet been ...
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