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Cooling spiral conveyor for powdery explosives

A cooling screw and conveyor technology, applied in packaging and other directions, can solve the problems of soft and deformed waxed paper tubes, reduced explosive power, difficult charge blasting, etc., and achieve the effects of reduced hygroscopicity, low cost, and good sealing performance

Inactive Publication Date: 2016-07-27
HUNAN MECHANICAL & ELECTRICAL POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hoist or belt conveyor used in the transportation process has no cooling function. Since the powdered explosives that have just been mixed have a high temperature (generally 60-90°C), they are directly fed into the automatic small package machine for packaging without sufficient cooling. On the one hand, it is easy to use the waxed paper tube used for packaging to become soft and deformed, causing machine jams, waste products, and low productivity; After a period of time (usually 6 months), it is easy to agglomerate and harden, it is difficult to charge and blast, and the power of the explosive is also significantly reduced, and even becomes a waste product

Method used

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  • Cooling spiral conveyor for powdery explosives
  • Cooling spiral conveyor for powdery explosives
  • Cooling spiral conveyor for powdery explosives

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Embodiment Construction

[0028] The specific implementation of the present invention will be further described below in conjunction with an embodiment, but the content of the present invention is not limited to this.

[0029] 1. See image 3 , Figure 5 , Image 6 , Figure 7 The steel pipe mandrel 19 in the spiral body 1 can be made of φ127×10 stainless steel pipe, the upper shaft head 21 and the lower shaft head 16 can be made of 45 steel, and the lower shaft head 16 is drilled with a water inlet and a water outlet. One end of the two long holes Corresponding to the water inlet 8 and the water outlet 9 of the combined water seal device 7, one of the long holes at the other end communicates with the inner cavity of the steel pipe mandrel 19, and the other long hole communicates with the sandwich spiral blade 18 through the elbow 17. The sandwich spiral blade 18 A stainless steel plate with a thickness of 12mm can be used to process a 9mm deep annular groove and then weld a stainless steel plate with a t...

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Abstract

The invention discloses a cooling spiral conveyor for powdery explosives, and belongs to a powdery explosive production device. The cooling spiral conveyor comprises a spiral body, a spiral groove, a power device, a transmission device, a combined water seal device, a feed device, a discharge device, a sealing cover plate and the like. Spiral blades of the cooling spiral conveyor are designed to be interlayers. A mandrel is in the form of a steel pipe. The spiral groove is also designed to be an interlayer. Inner cavities of the interlayer spiral blades, an inner cavity of the mandrel and an inner cavity of the interlayer spiral groove are communicated to form a cooling liquid circulation channel. When the explosives are conveyed, circulating cooling is conducted by leading in cooling liquid. A spiral is installed at a certain inclination angle. In this way, the explosives are effectively cooled while being conveyed to an inlet of a bundling press, low-temperature explosive charging is achieved, the hygroscopicity of the explosives is greatly reduced, the product quality is improved, and the storage period of the explosives is prolonged.

Description

Technical field [0001] The invention relates to a conveying and cooling device for explosives in the production process of powdered explosives, in particular to a cooling screw conveyor. Background technique [0002] Powdered explosives are one of the main civilian explosive equipment products. The main raw materials produced are ammonium nitrate, wood flour and diesel. According to the current production technology, after powdered explosives are mixed, they are generally passed through hoists, belt conveyors, etc. After being lifted to a certain height (about 3m), it is input into an automatic small package machine for packaging, forming a medicine coil that meets certain standard specifications. The elevators or belt conveyors used in the conveying process have no cooling function. Because the powdery explosives that have just been mixed have a high temperature (generally 60-90℃), they are directly input into the automatic small charter for packaging without sufficient cooling....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G33/26B65G33/14B65G33/24
Inventor 唐秀永
Owner HUNAN MECHANICAL & ELECTRICAL POLYTECHNIC
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