Sampling Apparatus for Drilling Dust Collection
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Solution Overview
Problem
Current sampling methods for geological research in underground drilling are plagued by poor accuracy and complex apparatus designs, leading to inefficient and unhealthy manual sampling processes that fail to representatively collect ore samples, especially in dusty environments and with mixed rock deposits.
Innovation Solution
A sampling apparatus with a sampling pipe arrangement that fits into the dust removal pipe of drilling apparatuses, featuring adjustable length and rotation mechanisms, suction capabilities, and a cyclone for separating rock material from air, allowing for precise collection of representative samples by capturing rock material from the dust removal pipe, including fine particles and reducing post-processing needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual sampling from rock piles is used, then sampling operation can be performed, but sampling accuracy deteriorates and worker health is harmed due to dust exposure
Solution Approach 1:
A sampling pipe is introduced as an intermediary device that extends into the borehole to collect rock material directly from the drilling source. This intermediary structure allows automatic sampling without manual intervention in the dusty environment, simultaneously improving sampling accuracy and protecting worker health from dust exposure
Solution Approach 2:
The manual mechanical sampling process is replaced with an automated pneumatic system. Compressed air flows through the sampling pipe to transport rock material automatically, eliminating the need for manual shoveling and pile collection, thereby improving both sampling accuracy and worker safety
2Measurement precision
If samples are collected from rock piles, then sampling can be performed, but representativeness of sample deteriorates due to mixing of ore and waste rock
Solution Approach 1:
The sampling action is performed preliminarily during the drilling process itself, before the rock material is discharged and mixed in piles. The sampling pipe collects material directly from the borehole at controlled intervals, ensuring that ore and waste rock remain separated and the sample remains representative of the specific depth interval
Solution Approach 2:
The invention extracts only the necessary sampling function from the drilling process by introducing a separate sampling pipe that selectively collects rock material from specific depth intervals. This extraction approach isolates the sampling action from the main drilling and pile formation processes, preventing mixing and maintaining sample representativeness
3Measurement precision
If automatic sampling with flow guide and separate bag is used, then sampling accuracy improves, but device complexity increases
Solution Approach 1:
The sampling pipe arrangement is designed to perform multiple functions: it serves as both the sampling collection device and the transport conduit for rock material. The compressed air system already present in the drilling apparatus is utilized for both dust removal and sample transport, eliminating the need for separate complex mechanisms and reducing overall device complexity while maintaining sampling accuracy
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
The solution enhances sampling accuracy, reduces labor costs and improves work safety and hygiene by providing a more representative sample that can differentiate between ore and waste rock, thereby optimizing processing efficiency and reducing costs.
Implementation Method 1
a suction device, with which a partial vacuum area is formed in the dust removal pipe, for collecting rock material
Implementation Method 2
a collecting arrangement fixed to the sampling pipe arrangement for separating the sampling material form the air flowing in the sample pipe arrangement and for collecting sampling material
Data Source
AI summary
A drilling apparatus includes a drill and a dust removal pipe for removing dust created in drilling from a proximity to a borehole. The drilling apparatus includes a sampling apparatus for collecting a research sample in the dust removal pipe of the drilling apparatus. The sampling apparatus includes a sampling pipe arrangement, at the end of which there is a sampling pipe, the mouth aperture of which is fitted in the dust removal pipe, element for fixing the sampling pipe arrangement to the dust removal pipe, a suction device for forming suction in the sampling pipe, and a collecting arrangement fixed to the sampling pipe arrangement for separating sampling material from air flowing in the sampling pipe arrangement, and for collecting sampling material. The sampling apparatus includes a length adjustment apparatus for moving the sampling pipe in the longitudinal direction in the dust removal pipe, and a rotating apparatus for rotating the sampling pipe in the dust removal pipe.