Slurry purifier for geological exploration drilling

Abstract

The invention discloses a slurry purifier for geological exploration drilling, and relates to the field of slurry purification, the slurry purifier comprises a primary purification tank mounted in a primary purification bin, the primary purification tank is used for receiving backflow slurry; the two screen pulse devices are symmetrically arranged between the primary purification bin and the primary purification tank, and a first screen and a second screen are arranged between the two screen pulse devices; the waste extraction device is arranged on the inner side of the primary purification tank in a sliding manner and is used for extracting the separated rock debris and colloidal waste; the deep purification bin is arranged at the bottom of the primary purification bin and is used for deeply purifying the backflow mud; through cooperative work of the screen pulse device and the double-screen structure, the screen pasting problem is solved.

Description

Technical Field

[0001] This invention relates to the field of mud purification, specifically a mud purifier for geological exploration drilling. Background Technology

[0002] Mud is the "blood" of geological drilling. Its main functions are to circulate and cool the drill bit, carry rock powder to the surface to clean the bottom of the hole, and use its fluid column pressure and the mud cake formed on the hole wall to stabilize and protect the hole wall to prevent collapse. At the same time, it lubricates the drill bit and reduces wear. It is a key medium to ensure the safe and efficient conduct of drilling.

[0003] Drilling mud slurry is the "kidney" of drilling operations. Through multi-stage processing using equipment such as vibrating screens, desanders, and centrifuges, it efficiently removes impurities, particles, and rock cuttings from drilling mud, thereby restoring and maintaining mud properties (such as density and viscosity) and enabling mud recycling. Drilling mud slurry ensures drilling safety, improves drilling efficiency, protects equipment from wear, and significantly reduces mud replenishment costs and environmental impact.

[0004] As drilling progresses, the drilling mud contains a large amount of rock cuttings and colloidal substances. This can cause the vibrating screen in the mud purifier to become clogged, which severely reduces the processing efficiency of the mud purifier and leads to a loss of separation capacity. A large amount of mud, along with drill cuttings, is forced to overflow, resulting in mud waste and increased costs. At the same time, the unfiltered, dense mud will increase the load on downstream desanders, desilters, and other equipment, and may even cause the entire purification system to fail. Summary of the Invention

[0005] To solve the above problems, the present invention provides the following technical solution: a mud purifier for geological exploration drilling, comprising:

[0006] A primary purification tank is installed in the primary purification chamber and is used to receive return sludge.

[0007] Two screen pulse devices are symmetrically arranged between the primary purification chamber and the primary purification tank, and a first screen and a second screen are arranged between the two screen pulse devices.

[0008] The waste extraction device is slidably disposed inside the primary purification tank and is used to extract the separated rock fragments and colloidal waste.

[0009] The deep purification chamber is located at the bottom of the primary purification chamber and is used for deep purification of the return sludge.

[0010] Furthermore, as a preferred embodiment, a first sealing gasket is provided at the connection between the primary purification chamber and the screen pulse device.

[0011] Further, preferably, the screen pulse device includes:

[0012] A fixing frame is fixedly installed between the primary purification chamber and the primary purification tank, and multiple elastic pins are slidably installed on the fixing frame along the vertical direction.

[0013] Multiple base blocks are fixedly connected to the bottom end of the elastic pin;

[0014] Multiple limiting blocks are fixedly installed on the inner wall of the primary purification chamber and located directly below the base block;

[0015] Multiple lifting platforms are disposed at the bottom of the base block, and a second sealing gasket is provided between the lifting platforms and the primary purification tank;

[0016] The second screen is fixedly disposed at the bottom of the limiting block.

[0017] Further, preferably, the lifting platform includes:

[0018] The base is fixedly mounted on the second screen.

[0019] A load-bearing plate is fixedly installed at the bottom of the base block;

[0020] The base and the load-bearing plate are symmetrically provided with sliding grooves;

[0021] A lifting frame is disposed between the base and the load-bearing plate, with one side of the lifting frame hinged to the base and the load-bearing plate, and the other side slidably disposed in the slide groove;

[0022] A drive motor, which is located outside any slide groove, is used to quickly drive the lifting frame to rise and fall.

[0023] Furthermore, as a preferred embodiment, a first sensor is provided at the fitting end of the fixing frame and the base block, and a second sensor is provided at the fitting end of the limiting block and the base block.

[0024] Furthermore, as a preferred embodiment, the base block is provided with an oscillator, and a screen frame is provided on the other side of the oscillator. The first screen is connected to the screen frame, and a third sealing gasket is provided at the connection point. A buffer elastic element is provided between the screen frame and the first screen.

[0025] Furthermore, as a preferred embodiment, the waste extraction device is provided with a height adjustment component, on which multiple positioning pins and a suction tube are slidably arranged. A collector is fixedly connected to the bottom of the positioning pins, and the suction tube communicates with the inner cavity of the collector.

[0026] Furthermore, as a preferred embodiment, the collector is symmetrically provided with inclined shovels and agitation rollers at both ends, and a third screen is provided between the inclined shovels.

[0027] Compared with the prior art, the present invention provides a mud purifier for geological exploration drilling, which has the following beneficial effects:

[0028] This device works in conjunction with a symmetrically arranged screen pulse device and a dual-screen structure. When the first screen is detected to be clogged, a pulse cycle mechanism is automatically triggered. By rapidly compressing and expanding the space between the first and second screens, the screen holes are flushed and negative pressure is applied, effectively solving the problem of screen clogging. Combined with a vibrator and a waste removal device, the device significantly improves the screen's self-cleaning ability and processing efficiency, reduces slurry waste, lowers the load on downstream equipment, and ensures the stable operation of the purification system. Attached Figure Description

[0029] Figure 1 A three-dimensional structural diagram of a mud purifier for geological exploration drilling;

[0030] Figure 2 This is a schematic diagram of a mud purifier used in geological exploration drilling.

[0031] Figure 3 for Figure 2 An enlarged schematic diagram of A;

[0032] Figure 4 for Figure 2 An enlarged schematic diagram of B;

[0033] Figure 5 This is a schematic diagram of the collector in a mud purifier used for geological exploration drilling.

[0034] Figure 6 This is a schematic diagram showing the working state of a screen pulse device in a mud purifier used for geological exploration drilling.

[0035] In the diagram: 1. Primary purification chamber; 2. Fixing frame; 21. First sensor; 22. Elastic pin; 3. Primary purification tank; 31. First sealing gasket; 4. Base block; 41. Vibrator; 42. Screen frame; 43. Buffer elastic element; 44. Third sealing gasket; 5. Limiting block; 51. Second sensor; 6. Lifting platform; 61. Drive motor; 62. Second sealing gasket; 63. Lifting frame; 64. Base; 65. Load-bearing plate; 66. Slide groove; 7. First screen; 8. Second screen; 9. Waste extraction device; 91. Height adjustment component; 911. Positioning pin; 912. Suction pipe; 92. Collector; 921. Third screen; 922. Agitator roller; 923. Inclined shovel; 10. Deep purification chamber. Detailed Implementation

[0036] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a distinguishing method used to describe objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0037] Example: Please refer to Figures 1-6 In this embodiment of the invention, a mud purifier for geological exploration drilling is provided, comprising:

[0038] Primary purification tank 3 is installed in primary purification chamber 1 and is used to receive return sludge.

[0039] Two screen pulse devices are symmetrically arranged between the primary purification chamber 1 and the primary purification tank 3. A first screen 7 and a second screen 8 are arranged between the two screen pulse devices. The screen pulse devices are used to clear the blocked screens.

[0040] The aperture size of the second screen 8 is 50% to 70% of the aperture size of the first screen 7.

[0041] Waste extraction device 9 is slidably disposed inside the primary purification tank 3 and is used to extract rock chips and colloidal waste separated by the first screen 7.

[0042] The deep purification chamber 10 is located at the bottom of the primary purification chamber 1 and is used for deep purification of the return sludge.

[0043] During the purification process of the return mud, the return mud is injected into the primary purification tank 3 and undergoes primary purification through the screen pulse device. During this process, if the first screen 7 becomes clogged or sticky, the working balance of the screen purification is disrupted, and the discharge volume is less than the injection volume. The mud gradually accumulates in the primary purification tank 3. The screen pulse device is triggered to generate pulses to reopen the first screen 7 and to pump out and interfere with the purification speed of the first screen 7, gradually restoring the purification balance. The waste extraction device 9 extracts the rock debris and gelatinous substances separated by the first screen 7. The mud that has undergone primary purification flows into the lower deep purification chamber 10 and is discharged from the deep purification chamber 10 for recycling.

[0044] Specifically, such as Figure 3As shown, a first sealing gasket 31 is provided at the connection between the primary purification tank 3 and the screen pulse device. The first sealing gasket 31 is used to ensure that the screen pulse device is not affected by the mud in the primary purification tank 3, thereby improving the working stability.

[0045] Furthermore, such as Figure 3 As shown, the screen pulse device includes:

[0046] A fixing frame 2 is fixedly installed between the primary purification chamber 1 and the primary purification tank 3. Multiple elastic pins 22 are slidably installed on the fixing frame 2 along the vertical direction.

[0047] Multiple base blocks 4 are fixedly connected to the bottom end of the elastic pin 22;

[0048] Multiple limiting blocks 5 are fixedly installed on the inner wall of the primary purification chamber 1 and located directly below the base block 4;

[0049] Multiple lifting platforms 6 are disposed at the bottom of the base block 4, and a second sealing gasket 62 is provided between the lifting platform 6 and the primary purification tank 3.

[0050] The second screen 8 is fixedly disposed at the bottom of the limiting block 5.

[0051] Preferably, the lifting platform 6 includes:

[0052] The base 64 is fixedly mounted on the second screen 8;

[0053] A load-bearing plate 65 is fixedly installed at the bottom of the base block 4;

[0054] The base 64 and the load-bearing plate 65 are symmetrically provided with sliding grooves 66;

[0055] The lifting frame 63 is disposed between the base 64 and the load-bearing plate 65. One side of the lifting frame 63 is hinged to the base 64 and the load-bearing plate 65, and the other side is slidably disposed in the slide groove 66.

[0056] A drive motor 61 is installed outside any slide groove 66 and is used to quickly drive the lifting frame 63 to rise and fall.

[0057] The fixing frame 2 is provided with a first sensor 21 at the fitting end of the base block 4, and the limiting block 5 is provided with a second sensor 51 at the fitting end of the base block 4.

[0058] Specifically, such as Figure 6 As shown, when the first screen 7 is clogged with rock debris and gelatinous material, slurry accumulates in the primary purification tank 3, triggering the recirculation mechanism of the screen pulse device:

[0059] When the first sensor 21 detects a screen blockage, the base block 4 separates from the fixed frame 2 during this process. The drive motor 61 reverses and drives the lifting platform 6 to sink rapidly. Under the rapid traction of the lifting platform 6, the base block 4 approaches and fits against the limiting block 5. During this process, the space between the first screen 7 and the second screen 8 is rapidly compressed. The gas and mud in this space are squeezed and flushed through the screen holes of the first screen 7 and the second screen 8, causing the blocked rock chips and gelatinous substances to detach from the screen holes and then be extracted by the waste extraction device 9.

[0060] Since the mesh size of the second screen 8 is smaller than that of the first screen 7, the mud discharge rate of the second screen 8 is smaller than that of the first screen 7. The mud will always leave a surplus above the second screen 8, which can improve the priority and amount of scouring of the mesh size of the first screen 7.

[0061] When the base block 4 and the limiting block 5 are in contact, the second sensor 51 is triggered, the drive motor 61 responds by rotating forward, and the lifting platform 6 is driven to rise rapidly. The space between the first screen 7 and the second screen 8 expands rapidly, forming a negative pressure. The filtration speed of the first screen 7 is accelerated under the negative pressure suction, which relieves the pressure of primary purification.

[0062] The above is a pulse cycle base point, which is operated in a cycle until the screen pulse device is restored and maintained in a state of purification balance.

[0063] Preferably, the base block 4 is provided with an oscillator 41, and a screen frame 42 is provided on the other side of the oscillator 41. The first screen 7 is connected to the screen frame 42, and a third sealing gasket 44 is provided at the connection. A buffer elastic element 43 is provided between the screen frame 42 and the first screen 7.

[0064] In a specific embodiment, the oscillator 41 is always in operation, which improves the separation efficiency of the first screen 7 and, to a certain extent, prevents and assists the screen pulse device in solving the clogging and screen sticking problems of the first screen 7. The buffer elastic element 43 is used to alleviate the impact of mud on the first screen 7, which can effectively extend the service life of the screen.

[0065] Preferably, the waste extraction device 9 is provided with a height adjustment component 91, on which multiple positioning pins 911 and a suction pipe 912 are slidably arranged. The bottom of the positioning pins 911 is fixedly connected to a collector 92, and the suction pipe 912 communicates with the inner cavity of the collector 92.

[0066] During implementation, the first screen 7 is subjected to a decrease in pressure from the accumulated mud, and the collector 92 descends with the first screen 7 under the influence of gravity, always adhering to the first screen 7. During this process, the positioning pin 911 is used to position the collector 92 to ensure that it does not shift in angle due to mud scouring. The collector 92 collects the separated rock debris and gelatinous material into the inner cavity. The suction pipe 912 can be compressed and stretched as the collector 92 rises and falls, discharging the waste collected in the inner cavity in real time, ensuring the stable operation of the collector 92.

[0067] As a preferred option, such as Figure 4 As shown, the collector 92 is symmetrically provided with inclined shovels 923 and agitation rollers 922 at both ends, and a third screen 921 is provided between the inclined shovels 923. The inclined shovels 923 are used to shovel up the waste material that is stuck to the surface of the first screen 7.

[0068] During the purification of return mud in the primary purification tank 3, the collector 92 reciprocates along the first screen 7 in the primary purification tank 3, collecting the separated rock fragments and gelatinous substances. The agitation roller 922 rotates inwards, agitating the mud in the primary purification tank 3, reducing the probability of screen clogging and screen sticking, while quickly collecting rock fragments and breaking up the gelatinous substances to prevent them from sticking to the suction pipe 912. The collector 92 can vibrate with the vibration of the first screen 7, and the mud entering the inner cavity of the collector 92 can be separated by the vibration of the third screen 921.

[0069] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mud purifier for geological exploration drilling, characterized in that, include: Primary purification tank (3), which is installed in primary purification chamber (1), is used to receive return sludge; Two screen pulse devices are symmetrically arranged between the primary purification chamber (1) and the primary purification tank (3), and a first screen (7) and a second screen (8) are arranged between the two screen pulse devices. Waste extraction device (9) is slidably disposed inside the primary purification tank (3) for extracting the separated rock fragments and colloidal waste; The deep purification chamber (10) is located at the bottom of the primary purification chamber (1) and is used for deep purification of the return sludge.

2. The mud purifier for geological exploration drilling according to claim 1, characterized in that, A first sealing gasket (31) is provided at the connection between the primary purification tank (3) and the screen pulse device.

3. The mud purifier for geological exploration drilling according to claim 1, characterized in that, The screen pulse device includes: A fixed frame (2) is fixedly installed between the primary purification chamber (1) and the primary purification tank (3), and multiple elastic pins (22) are slidably installed on the fixed frame (2) in the vertical direction. Multiple base blocks (4) are fixedly connected to the bottom end of the elastic pin (22); Multiple limiting blocks (5) are fixedly installed on the inner wall of the primary purification chamber (1) and located directly below the base block (4); Multiple lifting platforms (6) are provided at the bottom of the base block (4), and a second sealing gasket (62) is provided between the lifting platform (6) and the primary purification tank (3). The second screen (8) is fixedly disposed at the bottom of the limiting block (5).

4. A mud purifier for geological exploration drilling according to claim 3, characterized in that, The lifting platform (6) includes: The base (64) is fixedly mounted on the second screen (8); A load-bearing plate (65) is fixedly installed at the bottom of the base block (4); The base (64) and the load-bearing plate (65) are symmetrically provided with sliding grooves (66). A lifting frame (63) is disposed between the base (64) and the load-bearing plate (65). One side of the lifting frame (63) is hinged to the base (64) and the load-bearing plate (65), and the other side is slidably disposed in the slide groove (66). A drive motor (61) is located outside any slide (66) and is used to quickly drive the lifting frame (63) to rise and fall.

5. A mud purifier for geological exploration drilling according to claim 3, characterized in that, The fixing frame (2) is provided with a first sensor (21) at the end where it contacts the base block (4), and the limiting block (5) is provided with a second sensor (51) at the end where it contacts the base block (4).

6. A mud purifier for geological exploration drilling according to claim 4, characterized in that, The base block (4) is provided with an oscillator (41), and a screen frame (42) is provided on the other side of the oscillator (41). The first screen (7) is connected to the screen frame (42), and a third sealing gasket (44) is provided at the connection. A buffer elastic element (43) is provided between the screen frame (42) and the first screen (7).

7. A mud purifier for geological exploration drilling according to claim 1, characterized in that, The waste extraction device (9) is equipped with a height adjustment component (91). Multiple positioning pins (911) and a suction tube (912) are slidably arranged on the height adjustment component (91). A collector (92) is fixedly connected to the bottom of the positioning pins (911), and the suction tube (912) is connected to the inner cavity of the collector (92).

8. A mud purifier for geological exploration drilling according to claim 7, characterized in that, The collector (92) is symmetrically provided with inclined shovels (923) and agitation rollers (922) at both ends, and a third screen (921) is provided between the inclined shovels (923).

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