Slurry purification treatment device for geological core drilling

Abstract

The utility model relates to a slurry purification treatment device for geological core drilling. The utility model relates to a sludge dewatering device which comprises a motor, a transmission shaft, an outer cylinder, an inner cylinder, a stirring device, a water inlet pipe, a sewage pump, a mud pit, a water outlet pipe and a slag outlet pipe, one end of the water inlet pipe is communicated with the mud pit, the other end of the water inlet pipe is communicated with the upper portion of the inner cylinder, the motor is arranged on the top of the outer cylinder, the inner cylinder is arranged in the outer cylinder, and the stirring device is arranged in the inner cylinder. A water outlet pipe is arranged at the bottom of the outer cylinder, a slag outlet pipe is arranged at the bottom of the inner cylinder, and an inner cylinder filter screen is arranged on the side wall of the inner cylinder. The device can continuously work without shutdown, is simple to operate, economical, reasonable, green, environment-friendly, safe and reliable, can be repeatedly used, and has a wide popularization prospect.

Description

Technical Field

[0001] The utility model relates to the field of drilling engineering, in particular to a mud purification treatment device for geological core drilling. Background Art

[0002] Mud plays a vital role in the drilling process. It not only stabilizes the wellbore, cools and flushes the drill bit, and balances the formation pressure, but also carries and suspends the drill cuttings to ensure the smooth progress of the drilling operation. The performance of the mud directly affects the drilling efficiency, wellbore stability, and the safety of the drilling operation.

[0003] In order to solve the problem of mud treatment and environmental protection, the research and development of mud purification equipment is particularly important. The mud purification device can effectively separate the solid particles in the mud and improve the reuse rate of the mud. The mud after purification can be returned to the hole for recycling, reducing the demand for new mud and the discharge of waste mud.

[0004] At present, mud purification technology has made certain progress. Traditional mud purification methods mainly include gravity purification in sedimentation tanks and single mechanical purification in cyclones. However, during field application, gravity purification in sedimentation tanks faces the problem of needing to excavate multiple sedimentation tanks and channels, which requires excavation and damages the surface ecology, occupies a large area, and has slow speed and poor effect. Although single mechanical purification in cyclones can achieve continuous operation without stopping, it is not very practical in geological core drilling, because in field applications, it is necessary to face a variety of muds with different components and different specific gravities, and cyclones are difficult to solve the above problems. At present, there is an urgent need to develop a mud treatment device suitable for geological core drilling. The mud purification device for geological core drilling is a new type of mud treatment equipment that is a utility model under such a background. Utility Model Content

[0005] In order to solve the technical problems of low popularization rate, low acceptance, unsatisfactory treatment effect and poor treatment effect of existing geological drilling construction mud purification treatment devices, the utility model provides a geological core drilling mud purification treatment device.

[0006] The technical solution of the utility model is: the utility model is a mud purification treatment device for geological core drilling, and its special feature is: the mud purification treatment device for geological core drilling includes a motor, a transmission shaft, an outer cylinder, an inner cylinder, a stirring device, a water inlet pipe, a sewage pump, a mud pool, a water outlet pipe and a slag outlet pipe, one end of the water inlet pipe is connected with the mud pool, and the other end is connected with the upper part of the inner cylinder, a motor is arranged on the top of the outer cylinder, the inner cylinder is arranged in the outer cylinder, the stirring device is arranged in the inner cylinder, the motor is connected to the stirring device through the transmission shaft, a water outlet pipe is arranged at the bottom of the outer cylinder, a slag outlet pipe is arranged at the bottom of the inner cylinder, and an inner cylinder filter is arranged on the side wall of the inner cylinder.

[0007] Further, the stirring device includes two semi-circular fixing buckles that are buckled together and multiple blades. The blades are respectively located on the left and right sides of the two semi-circular fixing buckles. The semi-circular fixing buckles are provided with semi-circular fixing buckle reserved holes, and the blades are provided with blade reserved holes. The semi-circular fixing buckle reserved holes and the blade reserved holes are aligned, and bolts pass through the semi-circular fixing buckle reserved holes and the blade reserved holes and are connected to nuts.

[0008] Further, there are three stirring devices, namely a primary stirring device, a secondary stirring device, and a tertiary stirring device. The primary stirring device, the secondary stirring device, and the tertiary stirring device are sequentially arranged on the transmission shaft from top to bottom.

[0009] Further, the inner cylinder is an inclined cone with an open upper end. The inner cylinder filter screen is wrapped outside the inner cylinder. Circular holes are evenly distributed at the position where the inner cylinder is wrapped by the inner cylinder filter screen.

[0010] Further, a primary filtering device is arranged between the water inlet pipe and the mud pool. The primary filtering device includes a primary filtering channel, a water inlet clamping groove, and a water inlet filter screen. The water inlet filter screen is arranged on the primary filtering channel through the water clamping groove.

[0011] Further, inner cylinder baffles are arranged on the inner wall of the inner cylinder. There are multiple inner cylinder baffles, which are inclined downward and evenly distributed on the inner wall of the inner cylinder.

[0012] Further, the bottom of the inner cylinder is an inclined surface. An inner cylinder base is arranged at the inner bottom of the outer cylinder. The inner cylinder is arranged on the inner cylinder base through a limiting device. The slag discharge pipe is located at the low end of the inclined surface at the bottom of the inner cylinder, and the slag discharge pipe extends outside the outer cylinder.

[0013] Further, a water inlet pipe faucet is arranged on the water inlet pipe, a water outlet pipe faucet is arranged on the water outlet pipe, and a slag discharge pipe ball valve is arranged on the slag discharge pipe.

[0014] Further, an outer cylinder top cover is arranged at the top of the outer cylinder. A speed reducer is arranged between the motor and the transmission shaft. The motor and the speed reducer are located on the outer cylinder top cover. The bottom of the speed reducer passes through the outer cylinder top cover and extends into the outer cylinder. The transmission shaft is located inside the inner cylinder, and the top is connected to the bottom of the speed reducer through a transmission shaft connecting pin.

[0015] Further, a counterweight base is arranged at the bottom of the outer cylinder.

[0016] For the structure adopted by the mud purification and treatment device for geological core drilling provided by the present utility model, the mud is pumped out from the mud pool by means of a sewage pump, flows into the primary filtering channel, and the primary filtered mud flows into the inner cylinder. Under the action of the primary stirring device, the secondary stirring device, and the tertiary stirring device, the mud purification is accelerated. The purified mud flows out from the water outlet pipe and continues to participate in the cycle, and the waste is discharged from the slag discharge pipe. Therefore, the present utility model has the following advantages:

[0017] 1) Simple operation: After the device of the utility model is installed, it can work continuously without generating additional workload.

[0018] 2) Economical and reasonable: The materials and equipment used in the utility model have universality, which is convenient for procurement, maintenance and replacement.

[0019] 3) Green and environment-friendly: The structure of the utility model is simple, occupies a small area, does not require large-scale excavation of the ground surface, and causes little damage to the surface vegetation.

[0020] 4) Safe and reliable: The rotating parts in the device of the utility model run inside the inner cylinder, and the device will not cause mechanical injuries during operation, nor is it easy to cause safety accidents such as rollover.

[0021] 5) Reusable: After the device of the utility model is used for a period of time, it can be reused after routine maintenance.

[0022] 6) Broad promotion prospects: The utility model has a wide range of applications and is not affected by regions, hole depths, site environments, and altitudes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the utility model.

[0024] Figure 2 It is a connection schematic diagram of the stirring device of the utility model.

[0025] The description of the reference numerals is as follows:

[0026] 1. Motor; 2. Reducer; 3. Outer cylinder top cover; 4. Connecting pin between reducer and transmission shaft; 5. Transmission shaft; 6. Outer cylinder; 7. Inner cylinder; 8. Inner cylinder filter screen; 9. Inner cylinder baffle; 10. Primary stirring device; 11. Secondary stirring device; 12. Tertiary stirring device; 13. Water inlet pipe; 14. Water inlet pipe faucet; 15. Water inlet clamping groove; 16. Water inlet filter screen; 17. Sewage pump; 18. Mud pool; 19. Primary filtration channel; 20. Water outlet pipe; 21. Water outlet pipe faucet; 22. Limiting device; 23. Inner cylinder base; 24. Flange; 25. Slag discharge pipe ball valve; 26. Slag discharge pipe; 27. Counterweight base; 28. Bolt; 29. Nut; 30. Semi-circular fixing buckle; 31. Blade; 32. Reserved hole of semi-circular fixing buckle; 33. Reserved hole of blade. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following further describes the utility model in detail with specific embodiments:

[0028] See Figure 1, the specific embodiment structure of the present utility model includes a motor 1, a speed reducer 2, an outer cylinder top cover 3, a speed reducer and transmission shaft connection pin 4, a transmission shaft 5, an outer cylinder 6, an inner cylinder 7, an inner cylinder filter screen 8, an inner cylinder baffle 9, a primary agitation device 10, a secondary agitation device 11, a tertiary agitation device 12, a water inlet pipe 13, a water inlet pipe faucet 14, a water inlet slot 15, a water inlet filter screen 16, a sewage pump 17, a mud pool 18, a primary filtration channel 19, a water outlet pipe 20, a water outlet pipe faucet 21, a limiting device 22, an inner cylinder base 23, a flange 24, a slag discharge pipe ball valve 25, a slag discharge pipe 26 and a counterweight base 27. The inner cylinder 7 is arranged inside the outer cylinder 6, the top of the outer cylinder 6 is provided with an outer cylinder top cover 3, the motor 1 and the speed reducer 2 are located on the outer cylinder top cover 3, the bottom of the speed reducer 2 passes through the outer cylinder top cover 3 and extends into the outer cylinder 6, the transmission shaft 5 and the primary agitation device 10, the secondary agitation device 11, the tertiary agitation device 12 are located inside the inner cylinder 7, and the top of the transmission shaft 5 is connected to the bottom of the speed reducer 2 through the speed reducer and transmission shaft connection pin 4. When the motor 1 is powered on and starts to work, it can be adjusted to an appropriate speed under the action of the speed reducer 2 to drive the transmission shaft 5, and then drive the primary agitation device 10, the secondary agitation device 11, and the tertiary agitation device 12 to work. A sewage pump 17 is arranged in the mud pool 18, one end of the water inlet pipe 13 is communicated with the mud pool 18, and the other end is communicated with the upper part of the inner cylinder 7. A primary filtration device can also be arranged between the water inlet pipe 13 and the mud pool 18. The primary filtration device includes a primary filtration channel 19, a water inlet filter screen 16 and a water inlet slot 15. The primary filtration channel 19 is arranged between the water inlet pipe 13 and the mud pool 18, the aperture of the water inlet filter screen 16 is 20 mesh, and it is fixed on the primary filtration channel 19 through the water inlet slot 15. The inner cylinder 7 is an inclined cone with an open upper end and a certain slope at the lower part. The inner cylinder filter screen 8 is wrapped outside the inner cylinder 7, the aperture is 80 mesh, and it is detachable and reusable. Circular holes with a diameter of 1 cm are evenly distributed at the position of the inner cylinder 7 wrapped by the inner cylinder filter screen 8. The inner cylinder 7 can be taken out from the outer cylinder 6. The bottom of the inner cylinder 7 is an inclined plane with a slope. An inner cylinder base 23 is arranged at the bottom inside the outer cylinder 6, and a limiting device 22 is arranged at the bottom of the inner cylinder 7. The inner cylinder 7 is fixed on the inner cylinder base 23 by the limiting device 22. The slag discharge pipe 26 is located at the low end of the inclined plane at the bottom of the inner cylinder, and the slag discharge pipe 26 extends outside the outer cylinder 6. The slag discharge pipe 26 and the inner cylinder 7 are connected by a flange 24. The slag discharge pipe 26 is fixed on the outer cylinder, and the flange 24 connected to the inner cylinder 7 is fixed on the inner cylinder 7. The inner cylinder baffle 9 is multiple and is evenly welded on the inner wall of the inner cylinder 7, with the inclination angle facing downwards and forming a 60° angle with the inner wall of the inner cylinder 7, providing an attachment skeleton for the waste such as large particles of rock debris and mud skin remaining in the inner cylinder 7. During the operation of the device, the waste such as large particles of rock debris and mud skin remaining in the inner cylinder 7 adheres to the inner cylinder baffle 9. After running for a period of time, under the action of gravity, it falls off and drops to the bottom of the inner cylinder 7. A water inlet pipe faucet 14 is arranged on the water inlet pipe 13, a water outlet pipe faucet 21 is arranged on the water outlet pipe 20, and a slag discharge pipe ball valve 25 is arranged on the slag discharge pipe 26. A counterweight base 27 is arranged at the bottom of the outer cylinder 6.

[0029] See Figure 2 Figure 2 , the stirring device of the present utility model includes two semi-circular fixing buckles 30 that are buckled with each other and a plurality of blades 31. The blades 31 are respectively located on the left and right sides of the two semi-circular fixing buckles 30. A semi-circular fixing buckle reserved hole 32 is provided on the semi-circular fixing buckle 30, and a blade reserved hole 33 is provided on the blade 31. The semi-circular fixing buckle reserved hole 32 and the blade reserved hole 33 are aligned. A bolt 28 passes through the semi-circular fixing buckle reserved hole 32 and the blade reserved hole 33 and is connected to a nut 29. The two semi-circular fixing buckles 30 are fastened to the transmission shaft 5 through bolts and nuts.

[0030]

[0030] In a specific embodiment of the present utility model, there are three stirring devices, namely a primary stirring device 10, a secondary stirring device 11, and a tertiary stirring device 12. The primary stirring device 10, the secondary stirring device 11, and the tertiary stirring device 12 are sequentially arranged on the transmission shaft 5 from top to bottom. Among them, the primary stirring device 10 consists of two semi-circular fixing buckles 30, and two blades 31 are respectively located on the left and right sides of the two semi-circular fixing buckles 30. The semi-circular fixing buckle reserved hole 32 and the blade reserved hole 33 are aligned. The bolt 28 passes through the holes and is connected to the nut 29. The secondary stirring device 11 is based on the primary stirring device 10 and then connects two more blades 31. Align the blade reserved hole 33 below the blade 31 of the primary stirring device 10 with the blade reserved hole 33 at the top of the newly added blade 31, and the bolt 28 passes through the holes and is connected to the nut 29. The tertiary stirring device 12 is based on the secondary stirring device 11 and then connects two more blades 31. Align the blade reserved hole 33 below the blade 31 of the secondary stirring device 11 with the blade reserved hole 33 at the top of the newly added blade, and the bolt 28 passes through the holes and is connected to the nut 29.

[0031] To facilitate the installation, disassembly, and maintenance of the primary stirring device 10, the secondary stirring device 11, and the tertiary stirring device 12, the connection relationship between the blade 31 and the two semi-circular fixing buckles 30 is a movable connection, that is, the bolt 28 and the nut 29 are not tightly connected. The blade 31 can rotate around the bolt 28. With such a design, when the primary stirring device, the secondary stirring device, and the tertiary stirring device are stationary, the blade 31 is in a vertical state, and when working, the blade 31 is in a horizontal state driven by the transmission shaft 5.

[0032] When the utility model works, mud is pumped out from the mud pool 18 through the sewage pump 17 and flows into the primary filtration channel 19. The water inlet filter screen 16 is fixed on the primary filtration channel 19 through the water inlet clamping groove 15. The water inlet pipe faucet 14 is opened, and the preliminarily filtered mud flows into the inner cylinder 7 through the water inlet pipe 13. The inner cylinder filter screen 8 is wrapped outside the inner cylinder 7. Circular holes are evenly distributed at the position of the inner cylinder 7 wrapped by the inner cylinder filter screen 8. There is a limiting device 22 at the bottom of the inner cylinder 7. The inner cylinder 7 is fixed in the outer cylinder 6 jointly by the limiting device 22 and the inner cylinder base 23. The inner cylinder base 23 is fixed at the bottom of the outer cylinder 6. The outer cylinder 6 is fixed on the counterweight base 27. The speed reducer 2 is connected to the motor 1. The motor 1 is powered on to start working. Under the action of the speed reducer 2, it can be adjusted to an appropriate speed to drive the transmission shaft 5, and then drive the primary stirring device 10, the secondary stirring device 11, and the tertiary stirring device 12 to work. The motor 1 and the speed reducer 2 are located on the outer cylinder top cover 3. The bottom of the speed reducer 2 passes through the outer cylinder top cover 3 and extends into the outer cylinder 6. The transmission shaft 5 is located in the inner cylinder 7, and the top is connected to the speed reducer 2 through the transmission shaft connecting pin 4 and the part of the bottom of the speed reducer 2 extending into the outer cylinder 6. The primary stirring device 10, the secondary stirring device 11, and the tertiary stirring device 12 are composed of two semi-circular fixing buckles 30, which are fastened on the transmission shaft 5 through the bolts 28 passing through the reserved holes 32 of the semi-circular fixing buckles and the nuts 29. Under the action of the primary stirring device 10, the secondary stirring device 11, and the tertiary stirring device 12, the flow of the mud flowing into the inner cylinder 7 after primary filtration is accelerated. The purified mud flows through the inner cylinder filter screen 8, flows from the inner cylinder 7 into the outer cylinder 6, the water outlet pipe faucet 21 is opened, and flows out from the water outlet pipe 20 to continue to participate in the cycle. The inner cylinder baffle 9 is evenly welded on the inner wall of the inner cylinder 7, providing an attachment skeleton for the waste such as large particles of rock debris and mud skin remaining in the inner cylinder. During the operation of the device, the waste adheres to the inner cylinder baffle 9. After running for a period of time, under the action of gravity, it falls off and drops to the bottom of the inner cylinder 7. The slag discharge pipe 26 is connected to the inner cylinder 7 by the flange 24. The slag discharge pipe 26 extends outside the outer cylinder 6. The slag discharge pipe ball valve 25 is connected to the slag discharge pipe 26. After the device runs for a period of time, it is opened to discharge the waste that has fallen to the bottom of the inner cylinder 7 after falling off.

[0033] The technical content not specifically described in the content of the present utility model and the above embodiments is the same as the prior art.

[0034] The above is only the specific implementation manner disclosed by the present utility model, but the protection scope disclosed by the present utility model is not limited thereto. The protection scope disclosed by the present utility model shall be subject to the protection scope of the claims.

Claims

1. A mud purification device for geological core drilling, characterized in that: The mud purification treatment device for geological core drilling includes a motor, a transmission shaft, an outer cylinder, an inner cylinder, a stirring device, a water inlet pipe, a sewage pump, a mud pool, a water outlet pipe and a slag outlet pipe. One end of the water inlet pipe is connected to the mud pool, and the other end is connected to the upper part of the inner cylinder. A motor is arranged on the top of the outer cylinder, the inner cylinder is arranged in the outer cylinder, the stirring device is arranged in the inner cylinder, the motor is connected to the stirring device through the transmission shaft, a water outlet pipe is arranged at the bottom of the outer cylinder, a slag outlet pipe is arranged at the bottom of the inner cylinder, and an inner cylinder filter is arranged on the side wall of the inner cylinder.

2. The mud purification device for geological core drilling according to claim 1 is characterized in that: The stirring device includes two semicircular fixing buckles that are interlocked and a plurality of blades, the blades are respectively located on the left and right sides of the two semicircular fixing buckles, the semicircular fixing buckles are provided with semicircular fixing buckle reserved holes, the blades are provided with blade reserved holes, the semicircular fixing buckle reserved holes and the blade reserved holes are aligned, the bolts pass through the semicircular fixing buckle reserved holes and the blade reserved holes, and are connected to the nuts.

3. The mud purification device for geological core drilling according to claim 2 is characterized in that: There are three stirring devices, namely a primary stirring device, a secondary stirring device and a tertiary stirring device. The primary stirring device, the secondary stirring device and the tertiary stirring device are arranged on the transmission shaft in sequence from top to bottom.

4. The mud purification treatment device for geological core drilling according to claim 3 is characterized in that: The inner cylinder is an oblique cone with an opening at the upper end. The inner cylinder filter is wrapped outside the inner cylinder. Circular holes are evenly distributed at positions on the inner cylinder wrapped by the inner cylinder filter.

5. The mud purification device for geological core drilling according to claim 4 is characterized in that: A primary filtering device is arranged between the water inlet pipe and the mud pool. The primary filtering device comprises a primary filtering channel, a water inlet slot and a water inlet filter screen. The water inlet filter screen is arranged on the primary filtering channel through the water slot.

6. The mud purification device for geological core drilling according to claim 5, characterized in that: An inner cylinder baffle is arranged on the inner wall of the inner cylinder. There are a plurality of inner cylinder baffles, which are inclined downward and evenly distributed on the inner wall of the inner cylinder.

7. The mud purification treatment device for geological core drilling according to claim 6 is characterized in that: The bottom of the inner cylinder is an inclined surface, the inner bottom of the outer cylinder is provided with an inner cylinder base, the inner cylinder is arranged on the inner cylinder base through a limiting device, the slag discharge pipe is located at the lower end of the inclined surface of the bottom of the inner cylinder, and the slag discharge pipe extends out of the outer cylinder.

8. The mud purification device for geological core drilling according to claim 7, characterized in that: The water inlet pipe is provided with a water inlet pipe faucet, the water outlet pipe is provided with a water outlet pipe faucet, and the slag outlet pipe is provided with a slag outlet pipe ball valve.

9. The mud purification device for geological core drilling according to any one of claims 1 to 8, characterized in that: An outer cylinder top cover is provided on the top of the outer cylinder, a reducer is provided between the motor and the transmission shaft, the motor and the reducer are located on the outer cylinder top cover, the bottom of the reducer passes through the outer cylinder top cover and extends into the outer cylinder, the transmission shaft is located in the inner cylinder, and the top is connected to the bottom of the reducer through a transmission shaft connecting pin.

10. The mud purification treatment device for geological core drilling according to claim 9, characterized in that: A counterweight base is arranged at the bottom of the outer cylinder.

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