A large capacity drilling fluid centrifuge

Abstract

The utility model discloses a kind of drilling fluid centrifuges of large processing capacity, comprising: support plate;Assembled on the support plate centrifugal shell assembly, the centrifugal shell assembly is used to provide centrifugal field for drilling fluid;Differential centrifuge component is assembled on the centrifugal shell assembly;The above device is sent into filter cylinder by feeding valve pipe with drilling fluid once submerging motor after starting, simultaneously high-speed motor is driven filter cylinder high-speed rotation by spur gear-ring, solid phase is thrown to wall surface;Submerging motor two synchronous drive shaft and transmission screw leaf form stable differential in cylinder, push sediment to outlet pipe two continuously, avoid solid phase accumulation.Washing anti-blocking component starts as needed: water pump pumps water from water tank, high-pressure spray is formed to cylinder inner wall by connecting pipe, straight water pipe and two sides of spray head, adhere to scrap is removed immediately, still can dynamic adjustment speed difference under high torque working condition, sediment is smoothly, processing capacity and separation efficiency are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of drilling fluid centrifugation technology, and more specifically, to a drilling fluid centrifuge with a large processing capacity. Background Technology

[0002] Drilling fluid centrifugation is a process that uses a high-speed rotating centrifuge to separate solid particles (such as drill cuttings, barite, etc.) from the liquid phase in circulating drilling fluid. By rapidly settling solids according to density differences through a centrifugal force field, drilling fluid can be purified, its performance regulated, and recycled. It is a key solids control technology to ensure drilling safety and reduce costs.

[0003] A search revealed an existing patent (publication number: CN217421103U) that discloses a centrifuge for drilling fluid, comprising: an equipment mounting platform, on which a high-efficiency conveying centrifugal structure is mounted; the high-efficiency conveying centrifugal structure includes: a pair of first support legs, a centrifuge tank, a centrifuge chamber, a drive support centrifugal assembly, a drive connecting gear, and a fixed pipe feed assembly; this utility model relates to the field of centrifugal equipment technology, and solves the problem that existing drilling fluids lack perfect circulation and treatment equipment, and that the large amount of impurities contained in the drilling fluid will cause wear and tear on the equipment, which will eventually lead to equipment damage and affect the overall progress of drilling.

[0004] The existing structure relies solely on gears to drive the centrifugal rollers, lacking both a screw conveyor and differential speed, resulting in the solid phase not being continuously pushed and accumulating. Furthermore, the lack of torque adjustment means that the speed difference cannot be adjusted in real time according to the solid phase concentration, leading to significantly insufficient separation efficiency and slag discharge capacity. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a drilling fluid centrifuge with a large processing capacity to solve the problems of low efficiency due to lack of spiral differential speed and solid phase accumulation.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-capacity drilling fluid centrifuge, comprising: a support plate; a centrifuge shell assembly mounted on the support plate, the centrifuge shell assembly being used to provide a centrifugation space for the drilling fluid; a differential centrifuge assembly mounted on the centrifuge shell assembly, the differential centrifuge assembly being used to generate differential speed during transmission, thereby accelerating the centrifugation effect; a solid transfer and separation assembly mounted on the centrifuge shell assembly, the solid transfer and separation assembly being used to input the drilling fluid; and a flushing and anti-clogging assembly mounted on the centrifuge shell assembly, the flushing and anti-clogging assembly being used to prevent the differential centrifuge assembly from being clogged by debris.

[0007] Preferably, the centrifuge housing assembly includes: a support rod fixedly installed on the top of the support plate, a protective housing fixedly installed on the top of the support rod, a liquid outlet pipe fixedly installed on the bottom of the protective housing, and a liquid guide groove fixedly installed on the top of the support plate.

[0008] Preferably, the differential centrifugal assembly includes: a mounting ring fixedly installed inside the protective housing, a filter roller movably installed inside the mounting ring, a high-speed motor fixedly installed on the top of the protective housing, and a spur gear fixedly installed on the drive end of the high-speed motor.

[0009] Preferably, the differential centrifugal assembly further includes: a gear ring fixedly mounted on the outer surface of the filter drum, wherein the spur gear meshes with the gear ring.

[0010] Preferably, the solid transfer and separation assembly includes: a support frame fixedly installed on the top of the support plate, a first immersion motor fixedly installed on the top of the support frame, an inlet valve pipe fixedly installed at one end of the first immersion motor, a solid transfer section assembled inside the filter drum, a second immersion motor fixedly installed on the top of the support plate, and a second liquid outlet pipe fixedly installed at one end of the second immersion motor.

[0011] Preferably, the solid transmission unit includes: a rotating shaft fixedly installed on the first immersion motor and the second immersion motor, and a transmission thread blade is fixedly installed on the outer surface of the rotating shaft.

[0012] Preferably, the flushing anti-clogging component includes: a straight water pipe fixedly installed inside the protective housing, a nozzle fixedly installed on the outer surface of the straight water pipe, a connecting pipe fixedly installed at one end of the nozzle, a water pump fixedly installed on the outer surface of the connecting pipe, and a water tank fixedly installed on the outer surface of the connecting pipe.

[0013] Preferably, there are two sets of straight water pipes and nozzles, and the two sets of straight water pipes and nozzles are symmetrically arranged on both sides of the connecting pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Upon startup, this invention introduces a system where a single submersible motor delivers drilling fluid into the filter drum via the feed valve. Simultaneously, a high-speed motor drives the filter drum to rotate at high speed via a spur gear-ring, throwing the solid phase against the wall. A second submersible motor synchronously drives the shaft and transmission threaded blades, creating a stable differential speed within the drum, continuously pushing the sediment towards the second outlet pipe to prevent solid accumulation. The flushing and anti-clogging component activates as needed: a water pump draws water from the tank, which is then sprayed at high pressure onto the inner wall of the drum via connecting pipes, straight water pipes, and nozzles on both sides, instantly removing adhering debris. This system maintains dynamic adjustment of the speed difference even under high torque conditions, ensuring smooth slag discharge and significantly improving processing capacity and separation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the centrifuge shell assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the differential centrifugal assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the solid-state transmission unit structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the flushing and anti-clogging component of this utility model.

[0021] [Figure Labels]

[0022] 1. Support plate; 2. Centrifuge shell assembly; 3. Differential centrifuge assembly; 4. Solid transfer and separation assembly; 5. Flushing and anti-clogging assembly; 201. Support rod; 202. Protective shell; 203. Discharge pipe one; 204. Liquid guide groove; 301. Mounting ring; 302. Filter drum; 303. High-speed motor; 304. Spur gear; 305. Gear ring; 401. Support frame; 402. Immersion motor one; 403. Feed valve pipe; 404. Solid transfer section; 405. Immersion motor two; 406. Discharge pipe two; 407. Rotating shaft; 408. Transfer threaded blade; 501. Straight water pipe; 502. Nozzle; 503. Connecting pipe; 504. Water pump; 505. Water tank. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] A preferred embodiment of the high-capacity drilling fluid centrifuge provided by this utility model is, for example... Figures 1 to 5As shown, it includes: a support plate 1; a centrifugal housing assembly 2 mounted on the support plate 1, the centrifugal housing assembly 2 being used to provide a centrifugal space for drilling fluid; a differential centrifugal assembly 3 mounted on the centrifugal housing assembly 2, the differential centrifugal assembly 3 being used to generate differential speed during transmission, accelerating the centrifugal effect; a solid transfer and separation assembly 4 mounted on the centrifugal housing assembly 2, the solid transfer and separation assembly 4 being used to input drilling fluid; and a flushing and anti-clogging assembly 5 mounted on the centrifugal housing assembly 2, the flushing and anti-clogging assembly 5 being used to prevent the differential centrifugal assembly 3 from being clogged by debris.

[0026] In this embodiment, the centrifuge shell assembly 2 includes: a support rod 201 fixedly installed on the top of the support plate 1, a protective shell 202 fixedly installed on the top of the support rod 201, a liquid outlet pipe 203 fixedly installed on the bottom of the protective shell 202, and a liquid guide groove 204 fixedly installed on the top of the support plate 1.

[0027] In this embodiment, the differential centrifugal assembly 3 includes: a mounting ring 301 fixedly installed inside the protective housing 202, a filter roller 302 movably installed inside the mounting ring 301, a high-speed motor 303 fixedly installed on the top of the protective housing 202, and a spur gear 304 fixedly installed on the drive end of the high-speed motor 303.

[0028] In this embodiment, the differential centrifugal assembly 3 further includes a toothed ring 305 fixedly installed on the outer surface of the filter drum 302, and a spur gear 304 meshing with the toothed ring 305.

[0029] Example 2

[0030] Based on Embodiment 1, a preferred embodiment of the high-capacity drilling fluid centrifuge provided by this utility model is, for example... Figures 1 to 5 As shown: The solid transfer and separation assembly 4 includes: a support frame 401 fixedly installed on the top of the support plate 1, a water immersion motor 402 fixedly installed on the top of the support frame 401, an inlet valve pipe 403 fixedly installed at one end of the water immersion motor 402, a solid transfer section 404 assembled inside the filter drum 302, a water immersion motor 405 fixedly installed on the top of the support plate 1, and a liquid outlet pipe 406 fixedly installed at one end of the water immersion motor 405.

[0031] In this embodiment, the solid transmission unit 404 includes a rotating shaft 407 fixedly installed on the first immersion motor 402 and the second immersion motor 405, and a transmission thread blade 408 is fixedly installed on the outer surface of the rotating shaft 407.

[0032] In this embodiment, the flushing anti-clogging component 5 includes: a straight water pipe 501 fixedly installed inside the protective housing 202, a nozzle 502 fixedly installed on the outer surface of the straight water pipe 501, a connecting pipe 503 fixedly installed at one end of the nozzle 502, a water pump 504 fixedly installed on the outer surface of the connecting pipe 503, and a water tank 505 fixedly installed on the outer surface of the connecting pipe 503.

[0033] In this embodiment, two sets of straight water pipes 501 and nozzles 502 are provided, and the two sets of straight water pipes 501 and nozzles 502 are symmetrically arranged on both sides of the connecting pipe 503.

[0034] After startup, the first immersion motor 402 sends drilling fluid into the filter drum 302 via the feed valve pipe 403. Simultaneously, the high-speed motor 303 drives the filter drum 302 to rotate at high speed via the spur gear 304 and gear ring 305, causing the solid phase to be thrown against the wall. The second immersion motor 405 synchronously drives the rotating shaft 407 and the transmission threaded blade 408, forming a stable differential speed inside the drum, continuously pushing the sediment towards the second liquid outlet pipe 406 to prevent solid phase accumulation. The flushing and anti-clogging component 5 is activated as needed: the water pump 504 draws water from the water tank 505 and sprays it at high pressure onto the inner wall of the drum through the connecting pipe 503, the straight water pipe 501, and the nozzles on both sides 502, instantly removing adhering debris. It can dynamically adjust the speed difference even under high torque conditions, ensuring smooth slag discharge and significantly improving the processing capacity and separation efficiency.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-capacity drilling fluid centrifuge, characterized in that, include: Support plate (1); Centrifugal housing assembly (2) mounted on the support plate (1) is used to provide a centrifugal space for drilling fluid; The differential centrifugal assembly (3) is mounted on the centrifugal housing assembly (2). The differential centrifugal assembly (3) is used to generate differential speed during transmission to accelerate the centrifugation effect. A solids transfer and separation assembly (4) is mounted on the centrifugal housing assembly (2), the solids transfer and separation assembly (4) being used to input drilling fluid; A flushing anti-clogging component (5) is mounted on the centrifuge housing assembly (2) to prevent the differential centrifuge assembly (3) from being clogged by debris.

2. The high-capacity drilling fluid centrifuge according to claim 1, characterized in that, The centrifuge shell assembly (2) includes: A support rod (201) is fixedly installed on the top of the support plate (1). A protective shell (202) is fixedly installed on the top of the support rod (201). A liquid outlet pipe (203) is fixedly installed on the bottom of the protective shell (202). A liquid guide groove (204) is fixedly installed on the top of the support plate (1).

3. A high-capacity drilling fluid centrifuge according to claim 2, characterized in that, The differential centrifugal assembly (3) includes: A mounting ring (301) is fixedly installed inside the protective housing (202). A filter roller (302) is movably installed inside the mounting ring (301). A high-speed motor (303) is fixedly installed on the top of the protective housing (202). A spur gear (304) is fixedly installed on the drive end of the high-speed motor (303).

4. A high-capacity drilling fluid centrifuge according to claim 3, characterized in that, The differential centrifugal assembly (3) also includes: A toothed ring (305) is fixedly installed on the outer surface of the filter drum (302), and the spur gear (304) meshes with the toothed ring (305).

5. A high-capacity drilling fluid centrifuge according to claim 4, characterized in that, The solid transfer separation component (4) includes: A support frame (401) is fixedly installed on the top of the support plate (1). A water immersion motor (402) is fixedly installed on the top of the support frame (401). A feed valve pipe (403) is fixedly installed at one end of the water immersion motor (402). A solid transfer part (404) is assembled inside the filter drum (302). A water immersion motor (405) is fixedly installed on the top of the support plate (1). A liquid outlet pipe (406) is fixedly installed at one end of the water immersion motor (405).

6. A high-capacity drilling fluid centrifuge according to claim 5, characterized in that, The solid-state transport unit (404) includes: A rotating shaft (407) is fixedly installed on the first immersion motor (402) and the second immersion motor (405), and a transmission thread blade (408) is fixedly installed on the outer surface of the rotating shaft (407).

7. A high-capacity drilling fluid centrifuge according to claim 6, characterized in that, The flushing anti-clogging component (5) includes: A straight water pipe (501) is fixedly installed inside the protective shell (202). A nozzle (502) is fixedly installed on the outer surface of the straight water pipe (501). A connecting pipe (503) is fixedly installed at one end of the nozzle (502). A water pump (504) is fixed on the outer surface of the connecting pipe (503). A water tank (505) is fixedly installed on the outer surface of the connecting pipe (503).

8. A high-capacity drilling fluid centrifuge according to claim 7, characterized in that, The straight water pipe (501) and nozzle (502) are provided in two sets, and the two sets of straight water pipe (501) and nozzle (502) are symmetrically arranged on both sides of the connecting pipe (503).

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