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Emulsified ammonium nitrate fuel oil explosive double-roller mixing device and design method

A mixing device and technology of ammonium explosives, which are applied in explosives processing equipment, explosives, offensive equipment and other directions, can solve the problems of destroying the porous granular structure of ammonium nitrate, easy to produce dead corners when mixing materials, and insufficient mixing uniformity, and achieve mixing. Good uniformity, low manufacturing cost and novel design

Active Publication Date: 2020-01-21
JIANGXI JIAN GUOTAI SPECIAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese invention patent with the application number CN201710078976.4 realizes the mixing of porous granular ammonium oil explosives and latex matrix, but due to the structural limitations of the vertical mixing mixer, dead angles and segregation are likely to occur during the mixing of materials during the working process Severe, at the same time, the caking inside the conical shell is serious
Destroy the porous granular structure of ammonium nitrate, and the uniformity of mixing is insufficient

Method used

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  • Emulsified ammonium nitrate fuel oil explosive double-roller mixing device and design method
  • Emulsified ammonium nitrate fuel oil explosive double-roller mixing device and design method
  • Emulsified ammonium nitrate fuel oil explosive double-roller mixing device and design method

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Embodiment 1

[0066] Such as Figure 1-3 As shown, an emulsified ammonium oil explosive pair-roll mixing device of the present invention includes a mixing tank, two spiral conveying rollers installed in parallel in the length direction of the mixing tank, and the screw conveying roller includes a roller shaft and A bracket vertically fixed on the roller shaft, the mixing tank is provided with an inlet and an outlet, and any one of the two screw conveyor rollers is equipped with a mixing driver and drives the other The transmission part of the roller shaft, the roller shaft is provided with a plurality of brackets, the plurality of brackets on the roller shaft form several sets of brackets, and each bracket of each set of brackets is along the axis of the roller shaft The brackets are arranged in a straight line at intervals, and each set of brackets is arranged in a circular array along the center line of the roller shaft; each bracket of any set of brackets on the same roller shaft and each...

Embodiment 2

[0071] An emulsified ammonium explosive compound double-roller mixing device of the present invention includes a mixing tank and two spiral conveying rollers arranged in the length direction of the mixing tank. The mixing tank is provided with a feed port and a discharge port. A mixing drive and a transmission member for driving other rollers to mix are installed on any one of the plurality of rollers, and a plurality of brackets are provided on the rollers.

[0072] In this embodiment, the mixing drive is connected with a speed governor, which may be a mechanical gearbox mechanically connected with the mixing drive, or a frequency converter electrically connected with the mixing drive. Changing the rotation speed of the roller can change the mixing rate and the conveying and discharging rate.

[0073] The distance between the blade of the transverse screw conveying roller and the inner wall of the mixing tank is 6 mm.

[0074] Such as figure 1 , figure 2 As shown, the extension pa...

Embodiment 3

[0077] The difference between this embodiment and embodiment 2 is:

[0078] The distance between the blades of the transverse spiral conveying roller and the inner wall of the mixing tank is 3.5 mm, and also during the mixing process, the porous granular structure of ammonium nitrate will not be damaged, and the product quality of the emulsified ammonium explosive is guaranteed. image 3 Wherein, the bottom and two side parts of the mixing tank are excessively connected with chamfers (or called mixing tank chamfers), and the size of the mixing tank chamfers ensures that the transverse spiral conveyor roller blades and the inner wall of the mixing tank The distance is 3.5mm.

[0079] An insert plate is provided on one side of the discharge port. The discharge port can be opened or closed by the plug-in board. When the mixing drive is turned on for mixing, the discharge port shall be sealed by the plug-in board, so that the mixing tank that is gradually filled with materials runs for...

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Abstract

The invention provides an emulsified ammonium nitrate fuel oil mixture double-roller mixing device and a design method, wherein the design method comprises the following steps: S1, carrying out the preliminary model selection and parameter calculation of a spiral conveying roller of the double-roller mixing device; S2, adjusting and optimizing the parameters of a spiral conveying roller of the double-roller mixing device; S3, designing the form of a spiral conveying roller of the double-roller mixing device; and S4, designing the distance between a spiral conveying roller of the double-rollermixing device and the inner wall of the mixing tank. The design method of the double-roller mixing device for the emulsified ammonium nitrate fuel oil explosives has the following advantages: the double-roller mixing device designed according to the scientific and reasonable design method can be used for production lines of different productivities; the device is efficient, simple in structure andgood in mixing and stirring uniformity, emulsified ammonium nitrate fuel oil explosive raw materials are automatically, efficiently and uniformly mixed and stirred, production requirements are met, and high-quality emulsified ammonium nitrate fuel oil explosives are obtained.

Description

Technical field [0001] The invention relates to the field of explosive production, in particular to an emulsified ammonium explosive double-roller mixing device and a design method. Background technique [0002] Emulsified ammonium explosives (also known as weighted ammonium explosives) is a new type of mixed explosive made by mixing latex matrix and porous granular ammonium explosives. Namely: the porous granular ammonium nitrate and light diesel are mixed in proportion to form a porous granular ammonium explosive; the different ratios of the porous granular ammonium explosive and the latex matrix form an emulsified ammonium explosive with different properties. [0003] In the production process, how to realize the quick and efficient uniform mixing of porous granular ammonium explosives and latex matrix without destroying the porous granular structure of ammonium nitrate is the basic requirement for the production of emulsified ammonium explosives. The Chinese invention patent w...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B31/28
CPCC06B21/00C06B31/285
Inventor 刘冬水郭佳甲罗彦舟刘小柏
Owner JIANGXI JIAN GUOTAI SPECIAL CHEM
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