Device for measuring flowability of explosive modeling powder

By designing a measurement device for simulating the step-by-step press-packing process, the problem of explosive fluidity evaluation is solved, accurate measurement of the flow properties of explosive modeling powder and optimization of process parameters are achieved, and the safety and research depth of the charging process are improved.

CN101539585AInactive Publication Date: 2009-09-23XIAN MODERN CHEM RES INST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN MODERN CHEM RES INST
Filing Date
2009-04-09
Publication Date
2009-09-23
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

⚠Technical Problem

The existing technology lacks a device for measuring the fluidity of explosives, which results in the inability to accurately evaluate the adaptability of the explosive modeling powder to the step-by-step press-packing process, which affects the quality and safety of the charge and hinders in-depth research on high-energy explosives.

⚗Method used

A measuring device including a frame base, a step-by-step pressing simulation unit, a timing weighing unit and a computer control unit is designed to measure the flow rate and accumulation of explosive modeling powder by simulating the powder delivery process of the step-by-step pressing process. Density, providing judgment basis and optimization reference data.

🎯Benefits of technology

It achieves objective and accurate measurement of the flow properties of explosive modeling powder, supports its formula research and optimization of step-by-step pressing process parameters, and improves the safety of the charging process and the intelligence of measurement operations.

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Abstract

The invention discloses a device for measuring flowability of explosive modeling powder, which comprises a step-press-loading analogue unit, a timing and weighing unit and a computer control unit, wherein the step-press-loading analogue unit directly and indirectly drives a screw rod which extends into a blanking bin to rotate and perform reciprocating movements along an axial line and drives a pusher dog in the blanking bin to perform the reciprocating movements along an arc section through the combined action of a cylinder and a pneumatic reversal valve so as to ensure that the explosive modeling powder in the blanking bin falls into the timing and weighing unit, and the process more truly imitates an explosive conveying process of an explosive step-press process. The timing and weighing unit transmits a weighing value of the explosive modeling powder which falls in the timing and weighing unit to the computer control unit in real time, and the computer control unit calculates the instantaneous flow speed of the explosive modeling powder of a north side and generates a flow speed-time curve according to sampling data. The device can measure the flowability of the explosive modeling powder so as to provide an objective basis for choosing a proper explosive step-press process for the explosive modeling powder.
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