In-situ stratified sampling device for surface mine drilling rock powder

Abstract

A surface mine drilling rock powder in-situ stratified sampling device relates to the technical field of mines and comprises an outer pipe body, an inner pipe body, a piston and a closing device, the inner pipe body is slidably arranged in the outer pipe body, and the piston is arranged in the inner pipe body in a drawing manner; the closing device is fixed to an opening in the lower end of the outer pipe body and comprises a baffle ring, a round pipe and a sector plate, an inner hole of the baffle ring is a stepped hole, an upper hole of the stepped hole is a round hole, a big-end-down trapezoidal hole extends from the lower end face of the round hole to the edge of the lower end of the baffle ring, and the outer ring face of the baffle ring is fixed to the inner wall of the bottom of the outer pipe body. A round pipe is arranged on the baffle ring, a plurality of fixing blocks are arranged on the round pipe at intervals, the round pipe is fixed on the baffle ring through the fixing blocks, a plurality of fan-shaped plates are arranged, the fan-shaped plates are combined to form a round structure, sleeves are fixed on the outer arc surfaces of the fan-shaped plates, and the sleeves are rotationally arranged outside the round pipe. According to the utility model, the purpose of stratified sampling is realized, and the sampling work is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mine technical field especially is related to a strip mine drilling rock powder in situ layered sampling device. BACKGROUND

[0002] It is known that the secondary ore mining technology plays a vital role in precisely controlling the ore body shape of the mining area, optimizing resource allocation, implementing grade management and reducing ore loss and dilution, and all of these highly depend on the accuracy of the ore grade data; the sampling work, as the cornerstone in this series of processes, is directly related to the subsequent production efficiency and product quality, and therefore is regarded as the core link in the whole process.

[0003] Although the traditional 'cross ditch section scraping surface sampling method' meets the mining demand to a certain extent, its inherent limitations are increasingly prominent, the method not only has high labor intensity, which significantly increases the labor and time cost, but also has limited sample representativeness, especially when facing complex strata with large step height changes and uneven mineralization distribution, the limitation is more obvious; in addition, the operation environment of the strip mine is complex and changeable, which is easily affected by multiple factors such as operation equipment limitation, climate conditions and geological structure, further reducing the accuracy and efficiency of the traditional sampling method. SUMMARY

[0004] In order to overcome the deficiencies in the background art, the utility model discloses a strip mine drilling rock powder in situ layered sampling device.

[0005] In order to realize the invention purpose, the utility model adopts the following technical scheme:

[0006] A strip mine drilling rock powder in situ layered sampling device, including outer pipe body, inner pipe body, piston and closing device, the upper and lower ends of the inner pipe body are both open, and are slidingly arranged in the outer pipe body, the piston is pullably arranged in the inner pipe body; the closing device is fixed at the lower end opening of the outer pipe body, and includes a stop ring, a circular tube and a sector plate, the inner hole of the stop ring is arranged as a stepped hole, the upper part of the stepped hole is a circular hole, a trapezoidal hole with a small upper part and a large lower part extends from the lower end face of the circular hole to the lower end edge of the stop ring, the outer ring face of the stop ring is fixed on the bottom inner wall of the outer pipe body, the circular tube is arranged on the upper surface of the stop ring, a plurality of fixed blocks are arranged on the circular tube at intervals, and the circular tube is fixed on the upper surface of the stop ring through the plurality of fixed blocks, the sector plate is provided with a plurality of pieces, and the plurality of pieces of the sector plate are combined to form a circular structure, a sleeve is fixed on the outer arc surface of the sector plate, and the sleeve is rotatably arranged outside the circular tube.

[0007] The strip mine drilling rock powder in situ layered sampling device, the sleeve is located between the two fixed blocks on the circular tube.

[0008] The open-pit mine borehole rock powder in-situ stratified sampling device has an inner tube that is longer than the outer tube, and corresponding assist handles are fixed on both sides of the outer tube.

[0009] The aforementioned in-situ layered sampling device for rock powder from open-pit mine boreholes has an inner tube made of transparent material and is graduated along its length.

[0010] The open-pit mine borehole rock powder in-situ stratified sampling device has three sets of corresponding circular holes spaced from top to bottom on the upper part of the outer tube. The distance between the upper, middle and lower circular holes is half the radius of the outer tube. The upper sides of the inner tube are provided with recessed grooves, and springs are fixed in the recessed grooves. The outer end of the spring is fixed with a locking bead. When the spring is compressed, the locking bead contacts the inner wall of the outer tube. When the spring is in a natural state, it pushes the locking bead out into the circular hole opened on the outer tube.

[0011] The open-pit mine borehole rock powder in-situ stratified sampling device has a piston comprising a rubber soft plug, a connecting rod, and a handle. The bottom of the connecting rod is fixed with a rubber soft plug, and the upper end of the connecting rod is located outside the inner tube and is fixed with a handle. The rubber soft plug is in contact with the inner wall surface of the inner tube.

[0012] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0013] The in-situ stratified sampling device for rock powder in open-pit mine boreholes described in this utility model is suitable for sampling pile-like rock powder samples in open-pit mine boreholes. By opening and closing the closing device and using a direct insertion method, the original state of the pile-like rock powder is preserved to the greatest extent, reducing errors caused by subjectivity. At the same time, for steps with large step heights and uneven mineralization, stratification can be performed through scale display to achieve the purpose of stratified sampling, making the sampling work more accurate and more representative. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a top view of the closing device of this utility model.

[0016] Figure 3 This is a schematic diagram of the retaining ring of this utility model.

[0017] Figure 4 yes Figure 1 Enlarged view of point A in the image.

[0018] Figure 5 This is a sampling diagram of the present invention.

[0019] Figure 6 yes Figure 6 Enlarged view of point B above.

[0020] Figure 7 is a sampling and recycling schematic diagram of the utility model.

[0021] Figure 8 is Figure 7 the enlarged view at C on the utility model.

[0022] In the figure: 1, outer pipe body; 2, inner pipe body; 3, piston; 4, clamping nut; 5, closing device; 6, rubber soft plug; 7, connecting rod; 8, scale; 9, power handle; 10, handle; 11, baffle ring; 12, circular tube; 13, sleeve; 14, sector plate; 15, fixed block; 16, recess; 17, spring. DETAILED DESCRIPTION

[0023] The utility model can be explained in detail by the following examples, the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0024] Combining the drawings Figures 1-4 The open-pit mine drilling rock powder in-situ layered sampling device, including outer pipe body 1, inner pipe body 2, piston 3 and closing device 5, the upper and lower ends of inner pipe body 2 are open, and inner pipe body 2 is transparent material and is provided with scale 8 along its length direction, inner pipe body 2 is slidably arranged in outer pipe body 1, and piston 3 is pullably arranged in the inside of inner pipe body 2;The closing device 5 is fixed at the lower end opening of outer pipe body 1, and it includes baffle ring 11, circular tube 12 and sector plate 14, the inner hole of baffle ring 11 is arranged as a stepped hole, the upper hole of the stepped hole is a circular hole, a trapezoidal hole with upper small and lower large is extended to the lower end edge of baffle ring 11 along the lower end face of circular hole, and the lower end of trapezoidal hole and the outer ring surface of baffle ring 11 form a sharp part, when straightly inserting sampling, it is easier to insert rock powder pile, the outer ring surface of baffle ring 11 is fixed on the bottom inner wall of outer pipe body 1, the upper surface of baffle ring 11 is provided with circular tube 12, a plurality of fixed blocks 15 are arranged at intervals on circular tube 12, and circular tube 12 is fixed on the upper surface of baffle ring 11 through the plurality of fixed blocks 15, the sector plate 14 is provided with multiple pieces, and the multiple pieces of sector plate 14 are combined to form a circular structure, the sleeve 13 is fixed on the outer arc surface of sector plate 14, the sleeve 13 is rotatably arranged outside circular tube 12, and the sleeve 13 is located between the two fixed blocks 15 on circular tube 12, and the fixed block 15 is used for preventing the sector plate from moving left and right;Three groups of left-right corresponding circular holes are arranged at intervals from top to bottom on the upper part of outer pipe body 1, and the distance between the upper, middle and lower circular holes is half of the radius of outer pipe body 1, recessed grooves 16 are arranged on the two sides of the upper part of inner pipe body 2, springs 17 are fixed in recessed grooves 16, clamping nuts 4 are fixed to the outer ends of springs 17, the clamping nuts 4 are in contact with the inner wall of outer pipe body 1 under the compressed state of spring, and the clamping nuts are ejected on the circular hole of outer pipe body 1 under the natural state of spring.

[0025] Further, the length of the inner tube body 2 is higher than the length of the outer tube body 1, and corresponding power-assisted handles 9 are fixed on the outer sides of the two sides of the outer tube body 1.

[0026] Further, the piston 3 comprises a rubber soft plug 6, a connecting rod 7 and a handle 10, the rubber soft plug 6 is fixed on the bottom of the connecting rod 7, the upper end of the connecting rod 7 is located outside the inner tube body 2, and the handle 10 is fixed thereon, and the rubber soft plug 6 is in contact with the inner wall of the inner tube body 2.

[0027] The open-pit mine drilling rock powder in-situ layered sampling device is implemented, when sampling, first, the inner tube body 2 is pushed downward, the clamping beans 4 on the inner tube body 2 are located in the circular holes on the two sides of the middle part of the outer tube body 1, so that the inner tube body 2 is fixed, the outer tube body 1 is inserted into the rock powder pile to be sampled, during the insertion process, the fan-shaped plates 14 are opened upward under the pressure of the rock powder, as shown in Figures 5-6 With the increase of the insertion depth, the moving piston 3 is gradually pushed out upward, when the insertion is to the bottom of the rock powder pile, the outer tube body 1 is pulled out upward, at the same time, the inner tube body 2 is pressed downward, and the clamping beans 4 on the inner tube body 2 are pressed inward, the spring 17 is compressed, the outer tube body 1 is pulled out, at the same time, the clamping beans 4 on the inner tube body 2 are located in the circular holes on the two sides of the lower part of the outer tube body 1, as shown in Figures 7-8 Under the action of the gravity of the rock powder and the pressure of the inner tube body 2, the plurality of fan-shaped plates 14 on the bottom of the outer tube body 1 are closed to form a circular shape; the layered sampling device is taken out, the sampling is completed, finally, according to the length of the sample in the inner tube body 2, the sample is layered and pushed out by the moving piston, the purpose of layered sampling is achieved; the open-pit mine drilling rock powder in-situ layered sampling device adopts a straight insertion mode to insert into the rock powder pile, the original state of the rock powder pile is retained to the maximum extent, the error caused by subjectivity is reduced, at the same time, the layered sampling purpose is achieved by the scale display for the steps with large step heights and uneven mineralization, the sampling work is more accurate and more representative.

[0028] The part not described in the utility model is prior art.

[0029] In order to disclose the invention purpose of the utility model, the embodiments selected in the text are currently considered to be appropriate, however, it should be understood that the utility model aims to include all changes and improvements of the embodiments belonging to the concept and scope of the utility model.

Claims

1. An apparatus for in situ stratified sampling of drill cuttings in an open pit mine, comprising an outer tube, an inner tube, a piston and a closure device, characterised in that: The upper and lower ends of the inner tube body are open, and the inner tube body is slidingly arranged in the outer tube body, and the piston is arranged in the inner tube body; the closing device is fixed at the lower end opening of the outer tube body, and the closing device comprises a blocking ring, a circular tube and a plurality of fan-shaped plates, the inner hole of the blocking ring is arranged as a stepped hole, the upper part of the stepped hole is a circular hole, a trapezoidal hole with a small upper part and a large lower part extends from the lower end face of the circular hole to the lower end edge of the blocking ring, the outer surface of the blocking ring is fixed on the inner wall of the bottom of the outer tube body, the upper surface of the blocking ring is provided with the circular tube, a plurality of fixing blocks are arranged on the circular tube at intervals, and the circular tube is fixed on the upper surface of the blocking ring through the plurality of fixing blocks, the plurality of fan-shaped plates are arranged, and the plurality of fan-shaped plates are combined to form a circular structure, the sleeve is fixed on the outer arc surface of each fan-shaped plate, and the sleeve is rotatably arranged outside the circular tube.

2. The in-situ stratified sampling device for drill cuttings from surface mines according to claim 1, characterized in that: The sleeve is located between the two fixing blocks on the circular tube.

3. The in-situ stratified sampling device for drill cuttings from surface mines of claim 1, wherein: The length of the inner tube body is higher than the length of the outer tube body, and the corresponding power handles are fixed on the outer surfaces of the two sides of the outer tube body.

4. The in situ bench sampling device for drill cuttings in surface mines according to claim 1, characterized in that: The inner tube body is made of transparent material and is provided with a scale along the length direction.

5. The in situ bench sampling device for drill cuttings in surface mines according to claim 1, characterized in that: Three groups of left-right corresponding circular holes are arranged on the upper part of the outer tube body from top to bottom at intervals, the distance between the upper, middle and lower circular holes is half of the radius of the outer tube body, the upper part of the inner tube body is provided with a recessed groove on each side, a spring is fixed in the recessed groove, the outer end of the spring is fixed with a clamping bean, and the clamping bean is in contact with the inner wall of the outer tube body in the compressed state of the spring, and the clamping bean is pushed out in the circular hole of the outer tube body in the natural state of the spring.

6. The in situ bench sampling device for drill cuttings in surface mines according to claim 1, characterized in that: The piston comprises a rubber soft plug, a connecting rod and a handle, the rubber soft plug is fixed at the bottom of the connecting rod, the upper end of the connecting rod is located outside the inner tube body, and the handle is fixed on the upper end of the connecting rod, and the rubber soft plug is in contact with the inner wall of the inner tube body.

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