Exploration positioning coring device for sandstone type uranium deposit

Abstract

The utility model discloses an exploration positioning coring device for a sandstone type uranium mine, and relates to the technical field of drilling equipment. The drilling tool comprises a drill bit, an outer pipe and an inner pipe, a drilling tool assembly is arranged on the surface of the outer pipe, an auxiliary assembly is arranged on the surface of the inner pipe, a first half pipe is arranged on the inner wall of the inner pipe, a second half pipe is arranged on the inner wall of the inner pipe, and a through hole is formed in the surface of the first half pipe in a penetrating mode. According to the exploration positioning coring device, the drill bit and the outer pipe are connected through the reamer, the inner pipe is inserted and connected into the outer pipe for use, the coring device is placed underground after being installed, and when a sample is taken out, the first half pipe and the second half pipe are arranged in the inner pipe, so that the coring device is convenient to use. A sample is stored in the coring area between the half tube I and the half tube II, at the moment, knocking treatment is not needed during sampling, and meanwhile, the sample can be directly taken out, so that the integrity of the taken-out sample is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to an exploration, positioning and coring device for sandstone-type uranium mines. Background Art

[0002] At present, my country is vigorously searching for sandstone-type uranium deposits. Loose uranium-rich sandstone is a special type of rock. The texture of uranium-rich sandstone is loose, the degree of cementation between debris particles is low, and it is very easy to peel off and spread out. The exploration, positioning and coring device for sandstone-type uranium deposits is a professional equipment used to determine the location of sandstone-type uranium deposits and obtain core samples. It plays a vital role in studying the distribution, grade, geological structure and many other aspects of sandstone-type uranium deposits. The Chinese patent with publication number CN212743931U discloses an exploration, positioning and coring device suitable for sandstone-type uranium deposits, including a drill bit, a cone filter, a coring tube, and a rear baffle; the bottom end of the coring tube is provided with a first opening, the top end is provided with a second opening, and an annular platform is provided at the first opening.

[0003] The current exploration, positioning and coring device for sandstone-type uranium deposits is to install the drill rod and drill bit in the located area and lower it into the ground. The power device drives the drill rod to rotate, and the drill bit breaks the sandstone rock under the action of pressure. The broken core enters the core tube. When the core tube is full of core or reaches the predetermined drilling depth, the drill rod and the core tube are lifted to the ground together, and the core is taken out for subsequent analysis. However, when the core inside the core tube is taken out, the core sample will be firmly adsorbed in the inner tube. Therefore, it is necessary to cooperate with the knocking and vibration method to remove the core sample from the inner tube. The uranium-rich sandstone has a loose texture, so its structural integrity cannot be guaranteed after being knocked out, which will affect the subsequent core analysis work.

[0004] Therefore, a device for exploration, positioning and coring of sandstone-type uranium deposits is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that when the core inside the core tube is taken out, the core sample will be firmly adsorbed in the inner tube, so it is necessary to cooperate with the knocking and vibration method to move the core sample out of the inner tube. The uranium-rich sandstone has a loose texture, so its structural integrity cannot be guaranteed after being knocked out, which will affect the subsequent core analysis work. The utility model provides an exploration positioning coring device for sandstone-type uranium mines.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A device for exploration, positioning and coring of sandstone-type uranium deposits comprises a drill bit, an outer tube and an inner tube. A drilling tool assembly is provided on the surface of the outer tube, an auxiliary assembly is provided on the surface of the inner tube, and a limiting assembly for installing a coring structure is provided on the inner wall of the auxiliary assembly and the inner wall of the inner tube. A first half-tube is provided on the inner wall of the inner tube, and a second half-tube is provided on the inner wall of the inner tube.

[0008] Furthermore, the drilling tool assembly includes a reamer, both ends of the outer tube are threadedly connected to the reamer, the inner wall of the reamer is movably connected to a straightening ring, and the inner tube fits the inner wall of the straightening ring, the inner wall of the reamer is threadedly connected to a spring-loaded chamber block, and the inner wall of the surface of the spring-loaded chamber block is threadedly connected to a spring-loaded chamber stop head.

[0009] Furthermore, the auxiliary component includes a clamping ring, the bottom of the inner tube is threadedly connected to the clamping ring, and the top of the inner tube is threadedly connected to the inner tube assembly.

[0010] Furthermore, the limiting assembly includes a bottom clamping ring, the inner wall of the clamping ring is movably connected to the bottom clamping ring, the inner wall of the inner tube is movably connected to the upper clamping ring, and the top surface of the upper clamping ring is in contact with the bottom surface of the inner tube assembly.

[0011] Furthermore, a through hole is formed through the surface of the first half tube, and a through hole is formed through the surface of the second half tube.

[0012] Furthermore, a through hole is formed through the surface of the first half tube, and a through hole is formed through the surface of the second half tube.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model connects the drill bit and the outer tube by a reamer, and the other parts of the drilling tool assembly can be installed continuously. Before the inner tube is inserted into the outer tube, the clamping ring is threadedly connected to the inner tube, and the inner wall of the clamping ring is plugged with a bottom clamping ring. The half tube one and the half tube two are docked and merged, and then the half tube one and the half tube two are inserted into the interior of the inner tube. At this time, the bottom surfaces of the half tube one and the half tube two are in contact with the top surface of the bottom clamping ring. Then the upper clamping ring is inserted into the inner wall of the inner tube and screwed into the inner tube assembly. The inner tube assembly can limit the upper clamping ring, and at the same time, the top surfaces of the half tube one and the half tube two are in contact with the bottom surface of the upper clamping ring. Then, the half tube one and the half tube two can be fixed in the inner wall of the inner tube by the limiting assembly. The half tube one and the half tube two form a coring area in the inner tube, and then The inner tube can be inserted and connected to the outer tube for use. After installation, the coring device is placed underground and driven to rotate by a driving device. The drill bit breaks the rock under the action of pressure, and the broken rock core enters the coring area in the inner tube. When coring, half tube one and half tube two are removed from the inside of the inner tube, and half tube one is separated from half tube two, so that the sample inside the coring area can be directly taken out. In this case, there is no need to knock the coring tube during sampling. The exploration positioning coring device uses half tube one and half tube two arranged inside the inner tube. When the sample is taken out, the sample is stored in the coring area between half tube one and half tube two. In this case, there is no need to knock during sampling, and the sample can be taken out directly, thereby ensuring the integrity of the sample when it is taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a first partial cross-sectional schematic diagram of the present utility model;

[0017] Figure 3 This is an enlarged schematic diagram of the structure at point A of the present utility model;

[0018] Figure 4 This is a second partial cross-sectional schematic diagram of the utility model;

[0019] Figure 5 This is an enlarged schematic diagram of the structure at B of the utility model;

[0020] Figure 6 It is an enlarged schematic diagram of the structure at point C of the present invention.

[0021] Figure numerals: 1. drill bit; 2. outer tube; 3. drilling tool assembly; 301. reamer; 302. straightening ring; 303. ejection chamber block; 304. ejection chamber stop head; 4. inner tube; 5. auxiliary assembly; 501. retaining ring; 502. inner tube assembly; 6. limiting assembly; 601. bottom retaining ring; 602. upper retaining ring; 7. half tube one; 8. half tube two; 9. through hole. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0026] like Figure 1-6As shown, a device for exploration, positioning and coring of sandstone-type uranium ore comprises a drill bit 1, an outer tube 2 and an inner tube 4, the surface of the outer tube 2 is provided with a drilling tool assembly 3, the surface of the inner tube 4 is provided with an auxiliary assembly 5, the inner wall of the auxiliary assembly 5 and the inner wall of the inner tube 4 are provided with a limiting assembly 6 for installing a coring structure, the inner wall of the inner tube 4 is provided with a half-tube 1 7, and the inner wall of the inner tube 4 is provided with a half-tube 2 8; specifically, the device for exploration, positioning and coring of sandstone-type uranium ore uses geophysical detection equipment to perform a large-area scan of the target area to obtain information such as underground geological structure and radioactive anomalies, and combines geological radar and other equipment to further refine the geological structure information of the abnormal area, so as to accurately locate the specific location where sandstone-type uranium ore may exist. In the located area, the drill bit 1 and the outer tube 2 are connected by the drilling tool assembly 3, and the inner tube 4 is provided with a half-tube 1 7 and a half-tube 2 8 through the limiting assembly 6. The auxiliary assemblies 5 at both ends of the inner tube 4 are provided. The drill bit 1 is installed and used in conjunction with the limit assembly 6, and the half pipe 1 and the half pipe 2 are fixed in the inner pipe 4. After the half pipe 1 and the half pipe 2 are combined and installed, a coring area is formed inside the inner pipe 4. After installation, the coring device is placed underground and the coring device is driven to rotate by the driving device. The drill bit 1 breaks the rock under pressure, and the broken rock core enters the coring area in the inner pipe 4. When the coring area is full of rock cores or the predetermined drilling depth is reached, the device is lifted to the ground together. Then, the half pipe 1 and the half pipe 2 8 can be removed from the inside of the inner pipe 4, and the core sample can be directly taken out. The exploration positioning coring device uses the half pipe 1 and the half pipe 2 8 arranged inside the inner pipe 4. When the sample is taken out, the sample is stored in the coring area between the half pipe 1 and the half pipe 2 8. At this time, there is no need to knock during sampling, and the sample can be taken out directly, thereby ensuring the integrity of the sample when it is taken out.

[0027] like Figure 1As shown, the drilling tool assembly 3 includes a reamer 301, both ends of the outer tube 2 are threadedly connected to the reamer 301, the inner wall of the reamer 301 is movably connected with a straightening ring 302, and the inner tube 4 fits the inner wall of the straightening ring 302, the inner wall of the reamer 301 is threadedly connected to a spring-loaded chamber block 303, and the inner wall of the surface of the spring-loaded chamber block 303 is threadedly connected to a spring-loaded chamber stopper 304; specifically, the setting of the drilling tool assembly 3, the reamer 301 is a tool for enlarging the diameter of the drill hole, during the coring process, when it is necessary to obtain a core with a larger diameter or for subsequent downhole operations such as placing a casing When the diameter of the drill hole is enlarged by the expansion of the pipe, the reamer 301 can expand the diameter of the already drilled smaller diameter hole to make the diameter of the hole meet the expected requirements. The straightening ring 302 can keep the drill rod in the center position of the drill hole, ensure the verticality of the drill hole, thereby improving the coring quality and drilling efficiency. During the process of raising and lowering the drill rod, the ejection chamber block 303 clamps the inner tube 4 through the ejection device, so that the inner tube 4 can be stably connected to the drill rod to prevent it from accidentally falling off during the lifting or lowering process. The ejection chamber stop head 304 is used to prevent the ejection claw from over-extending or contracting, ensuring that the ejection mechanism works within the normal range.

[0028] like Figure 2 、 Figure 3 As shown, the auxiliary component 5 includes a retaining ring 501, the bottom of the inner tube 4 is threadedly connected to the retaining ring 501, and the top of the inner tube 4 is threadedly connected to the inner tube assembly 502; specifically, the setting of the auxiliary component 5, the retaining ring 501 can ensure the stable connection between the inner tube 4, the drill assembly 3 and other downhole tools, and prevent them from axial or circumferential displacement during the drilling process, thereby ensuring the normal working order of the entire exploration and coring device. During the exploration and coring process of sandstone-type uranium deposits, the inner tube assembly 502 cooperates with the outer tube 2 to ensure that the core can be completely removed from the ground and properly preserved, providing high-quality samples for subsequent geological analysis.

[0029] like Figure 5 、 Figure 6 As shown, the limiting assembly 6 includes a bottom clamping ring 601, the inner wall of the clamping ring 501 is movably connected with the bottom clamping ring 601, the inner wall of the inner tube 4 is movably connected with the upper clamping ring 602, and the top surface of the upper clamping ring 602 is in contact with the bottom surface of the inner tube assembly 502; specifically, the setting of the limiting assembly 6 is to limit the installation of half-tube 1 7 and half-tube 2 8, the bottom clamping ring 601 is installed inside the clamping ring 501, after the clamping ring 501 is installed, the bottom clamping ring 601 limits the bottom of half-tube 1 7 and half-tube 2 8, the upper clamping ring 602 is installed in the connecting groove on the top of the inner tube 4, after the inner tube assembly 502 is installed, the upper clamping ring 602 limits the top of half-tube 1 7 and half-tube 2 8.

[0030] like Figure 5As shown, a through hole 9 is opened through the surface of half-tube 1 7, and a through hole 9 is opened through the surface of half-tube 2 8; specifically, the opening of the through hole 9 allows hooks to be connected at the through hole 9 when half-tube 1 7 and half-tube 2 8 are taken out from the interior of the inner tube 4, when a portion of half-tube 1 7 and half-tube 2 8 are pulled out, so that half-tube 1 7 and half-tube 2 8 can be more conveniently pulled out of the inner tube 4.

[0031] like Figure 5 、 Figure 6 As shown, the bottom surface of half-tube 1 7 fits with the top surface of the bottom clamping ring 601, and the top surface of half-tube 1 7 fits with the bottom surface of the upper clamping ring 602; specifically, after half-tube 1 7 and half-tube 2 8 are installed in the inner tube 4, the end surfaces of half-tube 1 7 and half-tube 2 8 are limited, so that half-tube 1 7 and half-tube 2 8 can be stably connected in the inner tube 4 for sampling.

[0032] In summary: the exploration positioning and coring device for sandstone-type uranium mines connects the drill bit 1 and the outer tube 2 through the reamer 301, and the remaining components of the drill tool assembly 3 can be installed. When the inner tube 4 is inserted into the outer tube 2, the retaining ring 501 is threadedly connected to the inner tube 4, and the inner wall of the retaining ring 501 is inserted with a bottom retaining ring 601. The half tube 1 7 and the half tube 2 8 are docked and merged, and then the half tube 1 7 and the half tube 2 8 are inserted into the interior of the inner tube 4. At this time, the bottom surfaces of the half tube 1 7 and the half tube 2 8 are in contact with the top surface of the bottom retaining ring 601. Then, the upper retaining ring 602 is inserted into the inner wall of the inner tube 4 and screwed into the inner tube assembly 502. The inner tube assembly 502 can limit the upper retaining ring 602, and at the same time, the top surfaces of the half tube 1 7 and the half tube 2 8 are in contact with the bottom surface of the upper retaining ring 602. Furthermore, the limiting assembly 6 can be used to limit and fix half pipe 1 7 and half pipe 2 8 in the inner wall of the inner pipe 4, and half pipe 1 7 and half pipe 2 8 form a coring area in the inner pipe 4. Then the inner pipe 4 can be inserted and connected to the outer pipe 2 for use. After installation, the coring device is placed underground and driven to rotate by the driving device. The drill bit 1 crushes the rock under pressure, and the crushed rock core enters the coring area in the inner pipe 4. When the coring area is full of rock cores or the predetermined drilling depth is reached, the device is lifted to the ground together, and then half pipe 1 7 and half pipe 2 8 can be removed from the inside of the inner pipe 4. By separating half pipe 1 7 from half pipe 2 8, the sample inside the coring area can be directly taken out. At this time, there is no need to knock on the coring tube during sampling.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for exploration, positioning and coring of sandstone-type uranium deposits, characterized in that: The invention comprises a drill bit (1), an outer tube (2) and an inner tube (4); a drill assembly (3) is provided on the surface of the outer tube (2); an auxiliary assembly (5) is provided on the surface of the inner tube (4); a limiting assembly (6) for installing a coring structure is provided on the inner wall of the auxiliary assembly (5) and the inner wall of the inner tube (4); a half tube 1 (7) is provided on the inner wall of the inner tube (4); and a half tube 2 (8) is provided on the inner wall of the inner tube (4).

2. The exploration, positioning and coring device for sandstone-type uranium deposits according to claim 1, characterized in that: The drilling tool assembly (3) includes a reamer (301), both ends of the outer tube (2) are threadedly connected to the reamer (301), the inner wall of the reamer (301) is movably connected to a straightening ring (302), and the inner tube (4) is in contact with the inner wall of the straightening ring (302), the inner wall of the reamer (301) is threadedly connected to a spring-loaded chamber block (303), and the inner wall of the surface of the spring-loaded chamber block (303) is threadedly connected to a spring-loaded chamber stopper (304).

3. The exploration, positioning and coring device for sandstone-type uranium deposits according to claim 1, characterized in that: The auxiliary component (5) comprises a clamping ring (501), the bottom of the inner tube (4) is threadedly connected to the clamping ring (501), and the top of the inner tube (4) is threadedly connected to the inner tube assembly (502).

4. The exploration, positioning and coring device for sandstone-type uranium deposits according to claim 3, characterized in that: The limiting assembly (6) comprises a bottom snap ring (601), the inner wall of the snap ring (501) is movably connected to the bottom snap ring (601), the inner wall of the inner tube (4) is movably connected to the upper snap ring (602), and the top surface of the upper snap ring (602) is in contact with the bottom surface of the inner tube assembly (502).

5. The exploration, positioning and coring device for sandstone-type uranium deposits according to claim 1, characterized in that: A through hole (9) is provided through the surface of the first half-tube (7), and a through hole (9) is provided through the surface of the second half-tube (8).

6. The exploration, positioning and coring device for sandstone-type uranium deposits according to claim 4, characterized in that: The bottom surface of the half-tube one (7) fits in with the top surface of the bottom clamping ring (601), and the top surface of the half-tube one (7) fits in with the bottom surface of the upper clamping ring (602).

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