Screw-Fed Uncoupled Explosive Charging for Faster Blasting
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Solution Overview
Problem
Existing uncoupled charging devices for contour control blasting suffer from low construction efficiency, high labor intensity, and safety risks due to cumbersome operations and the lack of adaptable, mixed explosive use, especially in complex geological environments.
Innovation Solution
An automatic uncoupled charging device with a container body, power system, charging system, and auxiliary system, featuring a motor-driven screw and wire disks for explosive transport, a cooling structure, and a telescopic tripod for support, enabling one-click charging and mixed explosive use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual bundling and placing of powder rolls with bamboo sheets or PVC pipes is used, then uncoupled charging structure is achieved, but construction efficiency is low and labor intensity is high
Solution Approach 1:
The patent replaces manual mechanical operations (bundling, placing, stuffing) with an automated charging device that uses a motor-driven screw mechanism to automatically transport and charge explosives into blast holes, achieving both uncoupled charging structure and high construction efficiency
Solution Approach 2:
The charging device is designed with a replaceable explosive container and magazine that can be quickly swapped, allowing the system to serve itself by automatically charging multiple blast holes in sequence without requiring manual intervention for each hole
2Adaptability or versatility
If manual bundling and placing operations are used, then uncoupled charging is achieved, but the number of labor personnel is large
Solution Approach 1:
The device replaces multiple manual operations (bundling, carrying, placing, stuffing) with a single automated machine that performs all these functions through motor-driven mechanisms, dramatically reducing the number of labor personnel required
Solution Approach 2:
The charging device integrates multiple functions into one machine: it stores explosives in a magazine, transports them via screw mechanism, charges multiple blast holes in sequence, and can be quickly repositioned, replacing what previously required multiple specialized manual operations
3Adaptability or versatility
If fixed diameter PVC pipes are used for charging, then charging structure is achieved, but device design is simple and operation is complex
Solution Approach 1:
The patent employs a screw mechanism with adjustable pitch and a motor-driven system that can dynamically adapt the charging speed and quantity, allowing simple device design while achieving easy operation through automated control
Solution Approach 2:
The screw acts as an intermediary mechanism between the explosive storage magazine and the blast hole, automatically transferring and dosing explosives without requiring complex manual coordination or multiple operation steps
4Ease of manufacture
If explosive factories use bulk explosives packaging, then packaging function is achieved, but on-site mixed explosive use is difficult and adaptability to geological environments is poor
Solution Approach 1:
The device segments the explosive charging process into separate controllable stages: storage in magazine, transport via screw mechanism, and dosing into blast holes. This allows different types of explosives to be loaded in the magazine and selectively charged in various combinations to create mixed explosives on-site
Solution Approach 2:
The motor-driven screw mechanism can be dynamically controlled to adjust charging speed, quantity, and timing, enabling flexible adaptation to different geological conditions and the ability to mix different explosive types on-site based on real-time requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances charging efficiency, reduces labor intensity, and improves safety by allowing one-click automatic charging with mixed explosives, adapting to various geological conditions and reducing blasting impact on slopes.
Implementation Method 1
a motor, a working condition of the motor is controlled by the controller; a power output end of the motor is in transmission connection to two horizontally arranged transmission rods through a gear
Implementation Method 2
the cooling structure is configured to cool the explosives in the container shell
Implementation Method 3
the cooling structure is configured to cool the explosives in the container shell
Data Source
AI summary
An automatic uncoupled charging device includes a control system, a power system, a charging system, and an auxiliary system. The control system is equipped with a programmable circuit to control a screw speed. Explosives are charged into a container through manual handling or flowing from a mixed explosive vehicle. Explosive bags with different diameters are installed at the bottom of a discharge port. The device is set to start with one click, and the screw drives the explosive into the bag, achieving uncoupled charging. An automatic uncoupled charging method applying to the automatic uncoupled charging device not only reduces labor intensity, achieves fast charging, improves labor efficiency, but also achieves the goal of “mechanization reducing personnel”, further advancing towards the essential safety of blasting construction.