Undisturbed positioning and sampling device for full-hole ore rock horizon
The undisturbed positioning and sampling device for ore and rock strata in all boreholes has solved the problem of measuring and sampling disturbance of ore and rock distribution in open-pit bench blasting, and has achieved efficient and accurate acquisition of ore and rock strata information, thereby improving mining efficiency and recovery rate.
Patent Information
- Application Number
- CN202521820230.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-26
AI Technical Summary
Existing technologies make it difficult to accurately measure the distribution of ore and rock and the composition of ore layers during open-pit mine bench blasting. Furthermore, the sampling methods are prone to disturbing the rock powder accumulation, leading to information distortion, high labor intensity, and low efficiency.
A non-disturbance positioning and sampling device for ore and rock strata in all boreholes was designed, including a fixed connector, a sample receiving slot and a disassembly buckle. Through a transparent movable sliding plate and a scale, it can realize non-disturbance positioning measurement and sampling of rock powder deposits. The depth and thickness of the ore and rock strata can be estimated by using the ratio of borehole depth to rock powder deposit height.
It improved the accuracy and efficiency of rock powder detection and sampling through blast holes in open-pit mines, reduced labor intensity, provided accurate geological logging information, and improved the recovery rate and dilution rate of mining.
Smart Images

Figure CN224681853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a undisturbed positioning and sampling device for ore and rock strata in full boreholes, which is suitable for the utilization of ore and rock silt deposits in open-pit mines and the acquisition of geological logging information for ore and rock strata in stepped mines. Background Technology
[0002] The working bench height in open-pit mines is typically 10-15 meters, within which rock strata and ore layers may alternate. If the distribution of ore and rock within this range can be measured, and the content of useful components in the ore layer can be determined, accurate information can be provided for mine production geological logging, enabling the accurate formulation of technical measures for ore-rock separation, improving ore recovery rates, and reducing dilution rates.
[0003] The drilling for blasting holes in a bench requires drilling through the entire height of the bench. During operation, the drilling equipment continuously blows rock powder from the drill bit's penetration area to the hole opening, gradually forming a crater-shaped rock powder accumulation at the hole opening as the drill bit goes deeper.
[0004] The rock powder accumulated at the borehole opening is material from the ore strata through which the borehole passed, and it accumulates gradually from low to high according to the drilling progress. The mining value of the blasted body can be determined by analyzing the mineral composition of this rock powder. However, current methods for testing rock powder often fail to distinguish the borehole depth represented by the sample, and the mixing of rock powder from different locations during sampling cannot be ruled out. This limits the applicability of single-sample representations of the entire borehole's rock powder mixture. Even with deliberate division of rock powder accumulation height zones to identify corresponding borehole depths, excavation and measurement of the accumulation in practice disturb the rock powder's state, leading to distortion. Furthermore, this method is difficult to implement due to its high work requirements, labor intensity, and low sampling efficiency. Summary of the Invention
[0005] The technical problem this invention aims to solve is to provide a undisturbed positioning and sampling device for ore and rock strata throughout the borehole. This device utilizes the rock powder deposit at the borehole opening to obtain complete information on the ore and rock strata penetrated by the borehole in an open-pit mine. Furthermore, it allows for the positioning, measurement, or sampling of the desired strata while maintaining the undisturbed state of the deposit. By calculating the proportional relationship between the borehole depth and the height of the rock powder deposit, the location and thickness of each ore and rock stratum within the borehole can be estimated.
[0006] To achieve the objective of this invention, the following technical solution is adopted: This utility model discloses a non-disturbance positioning and sampling device for ore and rock strata in all boreholes, comprising: a fixed connector, a sample receiving slot, and a disassembly buckle. The sample receiving slot consists of a side baffle, an end baffle, and another side baffle sequentially surrounding the edge of a rectangular base plate. The sample receiving slot also has a side opening edge and an upper side opening edge. The length of the side baffle is greater than the length of the end baffle. One side baffle is inserted into the rectangular base plate through slots on both sides. One slot is opened on the end baffle, and the other slot is opened on a column near the side opening edge. The side baffle is a transparent, movable pull-out plate. At least three sample receiving slots are evenly fixed around the fixed connector by disassembly buckles. The side opening edge of the sample receiving slot faces the fixed connector, and the upper opening edge is located above the fixed connector. A scale is marked on the end of the side baffle or column facing the fixed connector.
[0007] The present invention relates to a undisturbed positioning and sampling device for ore and rock strata in full boreholes, wherein the length of the side baffle is 2-5 times the length of the end baffle.
[0008] The present invention relates to a undisturbed positioning and sampling device for ore and rock strata in a full borehole, wherein: a side baffle in the sampling slot is inserted into a rectangular base plate through slots on both sides, and the side baffle is a transparent movable drawer.
[0009] The present invention relates to a non-disturbance positioning and sampling device for ore and rock strata in full boreholes, wherein the disassembly buckle is a snap fastener, hook, or pin.
[0010] The present invention relates to a non-disturbance positioning and sampling device for ore and rock strata in full boreholes, wherein: the fixed connecting member is circular, and a sampling groove is uniformly fixed around its perimeter.
[0011] The present invention relates to a non-disturbance positioning and sampling device for ore and rock strata in full boreholes, wherein the fixed connecting member is an equilateral triangle, and a sampling groove is evenly fixed on its three sides.
[0012] The present invention relates to a non-disturbance positioning and sampling device for ore and rock strata in full boreholes, wherein: the fixed connecting member is square, and a sampling groove is evenly fixed on its four sides.
[0013] The present invention relates to a non-disturbance positioning and sampling device for ore and rock strata in full boreholes, wherein: the fixed connecting member is a regular pentagon, and a sampling groove is evenly fixed on its five sides.
[0014] The present invention relates to a non-disturbance positioning and sampling device for ore and rock strata in full boreholes, wherein: the fixed connecting member is a regular hexagon, and a sampling groove is evenly fixed on its six sides.
[0015] The beneficial effects of this novel undisturbed positioning and sampling device for ore and rock strata in open-pit mines are: it greatly improves the accuracy of rock powder positioning detection or sampling in open-pit mines. It allows for the measurement of the height range of different types (e.g., colors) of rock powder within the sampling trench without disturbing the rock powder accumulation. By using the dimensional ratio between the borehole depth and the height of the rock powder accumulation, the depth of the ore and rock strata within the borehole and the thickness of the ore and rock layers can be calculated. This provides a basis for the geological logging of open-pit mines, guides the separate blasting and mining in bench blasting and loading operations, and helps improve the ore loss rate and dilution rate in bench mining. Simultaneously, it greatly improves the accuracy and efficiency of positioning measurement or sampling, and reduces labor intensity. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the first type of undisturbed positioning and sampling device for ore and rock strata in full boreholes according to this utility model. Figure 2 This is a three-dimensional schematic diagram of the second type of undisturbed positioning and sampling device for ore and rock strata in full boreholes according to this utility model. Figure 3 This is a three-dimensional schematic diagram of the third type of undisturbed positioning and sampling device for ore and rock strata in full boreholes according to this utility model. Figure 4 This is a three-dimensional schematic diagram of the fourth type of undisturbed positioning and sampling device for ore and rock strata in full boreholes according to this utility model. Figure 5 This is a three-dimensional schematic diagram of the fifth type of undisturbed positioning and sampling device for ore and rock strata in full boreholes according to this utility model; Figure 6 for Figures 1 to 5 A three-dimensional schematic diagram of the sample receiving chamber.
[0017] exist Figures 1 to 6 In the diagram, number 1 is the fixed connector; number 2 is the sample receiving groove; number 3 is the disassembly buckle; number 4 is the side baffle; number 5 is the scale; number 6 is the rectangular base plate; number 7 is the end baffle; number 8 is the side opening edge; number 9 is the upper side opening edge; number 10 is the slot; and number 11 is the column. Detailed Implementation
[0018] like Figures 1 to 6As shown, the undisturbed positioning and sampling device for all borehole rock strata of this utility model includes: a fixed connector 1, a sample receiving groove 2, and a disassembly buckle 3. The sample receiving groove 2 is composed of a side baffle 4, an end baffle 7, and another side baffle 4 arranged sequentially around the rectangular base plate 6. The sample receiving groove 2 also has a side opening edge 8 and an upper side opening edge 9. The length of the side baffle 4 is 2-5 times the length of the end baffle 7. One of the side baffles 4 in the sample receiving groove 2 is inserted into the rectangular base plate 6 through two slots 10 on both sides. One slot 10 is opened on the end baffle 7, and the other slot 10 is opened on the column 11. The column 11 is close to the side opening edge 8. The side baffle 4 is a transparent movable pull plate. At least three sample receiving slots 2 are evenly fixed around the periphery of the fixed connector 1 by disassembly buckles 3. The side opening edge 8 of the sample receiving slot 2 faces the fixed connector 1, and the upper opening edge 9 is located above the fixed connector 1. A scale 5 is marked on the end of the side baffle 6 or column 11 facing the fixed connector 1.
[0019] like Figure 1 As shown, the fixed connector 1 is circular, and 3-8 sample receiving grooves 2 are evenly fixed around its perimeter, such as 6 sample receiving grooves 2.
[0020] like Figure 2 As shown, the fixed connector 1 is an equilateral triangle, with three sample receiving grooves 2 evenly fixed on its three sides.
[0021] like Figure 3 As shown, the fixed connector 1 is square, and four sample receiving grooves 2 are evenly fixed on its four sides.
[0022] like Figure 4 As shown, the fixed connector 1 is a regular pentagon, and five sample receiving grooves 2 are evenly fixed on its five sides.
[0023] like Figure 5 As shown, the fixed connector 1 is a regular hexagon, and six sample receiving grooves 2 are evenly fixed on its six sides.
[0024] When the device is in operation, the upper opening edges 9 of several sample receiving slots 2 face upwards, and the side opening edges 8 face the fixed connector 1. A side baffle 4 is inserted into the rectangular base plate 6 through the two side slots 10. Then, the multiple sample receiving slots 2 and the fixed connector 1 are connected as one unit using the disassembly buckle 3, so that it is stably placed around the borehole. When the drilling rig is drilling, the rock powder that has detached from the parent rock in the borehole is discharged from the borehole by compressed air and scattered around the borehole opening. The upper opening edge 9 of the sample receiving slot 2 receives the rock powder flying out from the direction of the borehole. The rock powder falls into the sample receiving slot 2 radially inward from the borehole. After the borehole is drilled, the sample receiving slot 2 can be directly separated from the fixed connector 1, or the rock powder around the outside of the sample receiving slot 2 can be removed. The rock powder in the sample receiving slot 2 can then be located and measured, thereby achieving the purpose of locating and measuring the thickness and grade of different color layers in the accumulation body, or locating and sampling.
[0025] By using the aforementioned device, the location and thickness of each mineral layer and rock layer within the borehole can be calculated and reconstructed proportionally by measuring the correspondence between the borehole depth and the height of the rock powder accumulation.
[0026] To ensure the representativeness of the samples and reduce errors, there should generally be two or more sample receiving slots 2, symmetrically arranged around the borehole. The connection between each sample receiving slot 2 and the disassembly buckle 3 should be made of a method that facilitates disassembly, such as a snap fastener, hook, or pin. One side baffle 4, i.e., the movable drawer, can be made of tempered glass, while the rest can be made of materials with a certain degree of rigidity.
[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes in form and detail can be made thereto without departing from the scope defined by the claims of this utility model.
Claims
1. A undisturbed positioning and sampling device for ore strata throughout the entire borehole, characterized in that: It includes: The sample receiving slot (2) consists of a fixed connector (1), a sample receiving slot (2), and a disassembly buckle (3). The sample receiving slot (2) is composed of a side baffle (4), an end baffle (7), and another side baffle (4) that are sequentially arranged around the rectangular base plate (6). The sample receiving slot (2) also has a side opening edge (8) and an upper opening edge (9). The length of the side baffle (4) is greater than the length of the end baffle (7). One of the side baffles (4) is inserted into the rectangular base plate (6) through slots (10) on both sides. The slot (10) on one side is opened on the end baffle (7), and the slot (10) on the other side is opened on the end baffle (7). The slot (10) is opened on the column (11), which is close to the side opening edge (8). The side baffle (4) is a transparent movable drawer. At least three sample slots (2) are evenly fixed around the fixed connector (1) by disassembly buckles (3). The side opening edge (8) of the sample slot (2) faces the fixed connector (1), and the upper side opening edge (9) is located above the fixed connector (1). A scale (5) is marked on the end of the side baffle (4) or column (11) facing the fixed connector (1).
2. The whole-hole undisturbed stratum positioning and sampling device as described in claim 1, characterized in that: The length of the side baffle (4) is 2-5 times the length of the end baffle (7).
3. The whole-hole undisturbed stratum positioning and sampling device as described in claim 2, characterized in that: The disassembly buckle (3) is a snap fastener, hook, or pin.
4. The whole-hole undisturbed stratum positioning and sampling device as described in claim 3, characterized in that: The fixed connector (1) is circular, and 3-8 sample receiving grooves (2) are evenly fixed around its circumference.
5. The whole-hole undisturbed stratum positioning and sampling device as described in claim 3, characterized in that: The fixed connector (1) is an equilateral triangle with three sample receiving grooves (2) evenly fixed on its three sides.
6. The whole-hole undisturbed stratum positioning and sampling device as described in claim 3, characterized in that: The fixed connector (1) is square, and four sample receiving grooves (2) are evenly fixed on its four sides.
7. The whole-hole undisturbed stratum positioning and sampling device as described in claim 3, characterized in that: The fixed connector (1) is a regular pentagon, with five sample receiving grooves (2) evenly fixed on its five sides.
8. The whole-hole undisturbed stratum positioning and sampling device as described in claim 3, characterized in that: The fixed connector (1) is a regular hexagon with six sample receiving grooves (2) evenly fixed on its six sides.