Modular treatment device for the separation of solid and liquid of the flushing fluid in core drilling

Abstract

The utility model relates to a kind of modular processing device for solid-liquid separation of flushing fluid in core drilling, to efficiently separate solid particles and liquid in core drilling flushing fluid, realize resource recovery and environmental protection.The device uses modular design, including slurry conveying module, solid-liquid separation module, concentration module, filter pressing module and control system.Through horizontal centrifuge and vibrating screen, preliminary solid-liquid separation is realized, and flocculation concentration technology is used to further process separated liquid, and finally, the concentrated slurry is filter pressed into mud cake and recyclable clean water by filter pressing module.The control system monitors and controls the entire processing process in real time, ensuring efficient and stable operation.The device has the advantages of efficient separation, modular design, resource recovery and environmental protection, and is suitable for flushing fluid treatment in core drilling field.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration equipment technology, and in particular to a modular processing device for solid-liquid separation of flushing fluid in core drilling, which is suitable for drilling fluid purification and treatment systems in scenarios such as oil and gas exploration and mineral exploration. Background Technology

[0002] In core drilling, flushing fluid (mud) is used to carry cuttings, cool the drill bit, and stabilize the wellbore. However, flushing fluid generates a large amount of solid particles and impurities during use, requiring effective solid-liquid separation for resource recovery and environmental protection. Traditional methods typically suffer from problems such as dispersed equipment, large footprint, and low processing efficiency. Multi-stage equipment often occupies over 40% of the drilling platform space. Therefore, developing an efficient, compact, and modular solid-liquid separation device is of great significance to the core drilling industry. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a modular processing device for solid-liquid separation of flushing fluid in core drilling. This modular solid-liquid separation device allows for flexible assembly, occupies a small area, and enables resource recycling, thus achieving the step-by-step separation of rock cuttings.

[0004] This utility model provides a modular processing device for solid-liquid separation of flushing fluid in core drilling. The technical solution is as follows: an integrated support frame integrates a mud conveying module, a solid-liquid separation module, a concentration module, a filter press module, and a control system functional module, forming a support box that integrates all modules; the mud conveying module includes a mud pump and a conveying pipeline, used to transport the flushing fluid generated from core drilling to the solid-liquid separation module; the solid-liquid separation module includes a horizontal centrifuge and a vibrating screen; large solid particles in the flushing fluid are separated by centrifugal force, and the vibrating screen further separates smaller solid particles; the concentration module includes a concentration tank and a stirring device; a flocculant addition system is installed in the concentration tank, and the stirring device ensures that the flocculant is fully mixed with the liquid, accelerating the sedimentation of solid particles; the filter press module uses a plate and frame filter press; it filters the concentrated mud to separate mud cake and recyclable clean water; the control system includes sensors and controllers; it is used to monitor and control the parameters of the entire processing process in real time.

[0005] Preferably, the inlet of the horizontal centrifuge is connected to the mud conveying pipeline, the outlet is connected to the concentration tank, and the slag discharge port is connected to the solid collection device.

[0006] Preferably, the screen mesh size of the vibrating screen is 0.5-2mm, which is used to screen smaller solid particles.

[0007] Preferably, the concentration tank is equipped with a liquid level sensor and a stirring motor. The liquid level sensor is used to monitor the liquid level in the concentration tank in real time, and the stirring motor is used to stir the mixture of flocculant and liquid.

[0008] Preferably, the pressure range of the filter press module is 0.5-1.5 MPa, which can effectively separate mud cake and clean water.

[0009] Preferably, the sensors and controllers of the control system are used to collect various parameter data during the processing to achieve remote monitoring and operation.

[0010] Compared with existing technologies, the advantages of this modular processing device for solid-liquid separation of flushing fluid in core drilling are:

[0011] 1. This utility model uses multi-stage separation technology, including horizontal centrifuge, vibrating screen, and flocculation concentration, to efficiently separate solid particles and liquid in rinsing fluid, achieving good separation results.

[0012] 2. This utility model adopts a modular design, with each functional module integrated on an integrated load-bearing frame, which facilitates installation, maintenance and expansion, and can be flexibly configured according to actual needs.

[0013] 3. This utility model can realize resource recycling. The separated solid particles can be recycled as building materials, and the clean water can be recycled for the drilling process, thus maximizing the utilization of resources.

[0014] 4. This utility model reduces the discharge of rinsing fluid, thus reducing environmental pollution, while also lowering treatment costs and energy consumption. Attached Figure Description

[0015] Figure 1 A schematic diagram of a modular processing device for solid-liquid separation of flushing fluid in core drilling, provided by this utility model;

[0016] In the diagram: 1. Integrated support frame; 201. Slurry pump; 202. Conveying pipeline; 301. Horizontal centrifuge; 302. Vibrating screen; 303. Liquid inlet; 304. Liquid outlet; 305. Slag discharge port; 306. Solid collection device; 401. Concentrator; 402. Agitator; 403. Liquid level sensor; 404. Agitator motor; 501. Plate and frame filter press; 601. Sensor; 602. Controller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 A modular processing device for solid-liquid separation of flushing fluid in core drilling includes an integrated support frame (1) on which a mud conveying module, a solid-liquid separation module, a concentration module, a filter press module, and a control system functional module are integrated, serving as a support box for integrating all modules; the mud conveying module includes a mud pump (201) and a conveying pipeline (202) for conveying the flushing fluid generated from core drilling to the solid-liquid separation module; the solid-liquid separation module includes a horizontal centrifuge (301) and a vibrating screen (302); large particles of solid in the flushing fluid are separated by centrifugal force, and the vibrating screen... The sieve (302) further screens out smaller solid particles; the concentration module includes a concentration tank (401) and a stirring device (402); the concentration tank (401) is equipped with a flocculant addition system, and the stirring device (402) makes the flocculant fully mixed with the liquid, accelerating the sedimentation of solid particles; the filter press module adopts a plate and frame filter press (501); the concentrated slurry is filtered to separate the sludge cake and recyclable clean water; the control system includes a sensor (601) and a controller (602); used to monitor and control the parameters of the entire process in real time.

[0019] The modular solid-liquid separation treatment device for core drilling flushing fluid described above is used as follows:

[0020] S1, Mud Delivery Stage: The operator starts the mud pump (201) in the mud delivery module via the control system switch. The mud pump (201) draws flushing fluid generated during core drilling from the flushing fluid storage tank at the drilling site or directly from the output port of the drilling equipment. The mud pump (201) delivers the flushing fluid to the solid-liquid separation module through the delivery pipeline (202). The delivery pipeline (202) is made of corrosion-resistant material to ensure that the flushing fluid will not corrode the pipeline during delivery.

[0021] S2, Solid-Liquid Separation Stage: The rinsing liquid enters the horizontal centrifuge (301) in the solid-liquid separation module. The horizontal centrifuge (301) uses centrifugal force to separate large solid particles from the rinsing liquid. The separated solids are discharged through the slag discharge port (301) and enter the solids collection device (305). The liquid, after preliminary separation by the horizontal centrifuge (301), flows into a vibrating screen (302). The vibrating screen has a mesh size of 0.5-2mm, further separating smaller solid particles to ensure that the solid particle content in the liquid is reduced to a low level. The screened solids also enter the solids collection device (305).

[0022] S3. Concentration Stage: After solid-liquid separation, the liquid enters the concentration tank (401) of the concentration module through a pipeline, and flocculant is added to the concentration tank (401). The stirring device (402) is started, and the stirring motor drives the stirring impeller to rotate, so that the flocculant and liquid are fully mixed. The role of the flocculant is to cause the fine solid particles in the liquid to aggregate into larger particles, accelerating their sedimentation process. Under the action of stirring and flocculation, the solid particles gradually settle to the bottom of the concentration tank (401), forming concentrated slurry. The concentrated slurry is discharged through the sludge discharge port at the bottom of the concentration tank and enters the solid collection device (306). The clear water in the upper layer flows into the filter press module through the liquid outlet of the concentration tank (401).

[0023] S4. Filtration Stage: Clean water enters the plate and frame filter press (501) of the filtration module. The inlet of the plate and frame filter press (501) is connected to the outlet of the thickening tank (401), and the filtration pressure range is 0.5-1.5 MPa. The plate and frame filter press (501) performs filtration treatment on the concentrated mud, completely separating the water and solid particles in the mud. The filtered clean water flows back to the clean water pool through pipelines and can be recycled for drilling processes or other purposes. The mud cake is transported to the collection device through pipelines and can be subsequently landfilled, incinerated, or recycled.

[0024] S7. Control and Monitoring: During the operation of the device, the sensors (601) in the control system monitor key parameters of the entire processing process in real time, such as mud density, sand content, and liquid level. The sensors (601) transmit the collected data to the controller (602). Based on the data from the sensors (601), the controller analyzes and processes the data to control the speed of the mud pump, the operation of the stirring device, the pressure of the filter press, etc., to ensure the efficient and stable operation of the processing process.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular processing device for solid-liquid separation of flushing fluid in core drilling, characterized in that, include: The integrated support frame (1) integrates a mud conveying module, a solid-liquid separation module, a concentration module, a filter press module, and a control system functional module, which serves as a support box for integrating all modules; The mud conveying module includes a mud pump (201) and a conveying pipeline (202) for conveying the flushing fluid generated from core drilling to the solid-liquid separation module; The solid-liquid separation module includes a horizontal centrifuge (301) and a vibrating screen (302); large solid particles in the rinsing liquid are separated by centrifugal force, and the vibrating screen (302) further separates smaller solid particles. The concentration module includes a concentration tank (401) and a stirring device (402); the concentration tank (401) is equipped with a flocculant addition system, and the stirring device (402) makes the flocculant and liquid fully mixed to accelerate the sedimentation of solid particles; The filter press module uses a plate and frame filter press (501) to filter the concentrated slurry and separate the slurry cake and recyclable clean water. The control system includes a sensor (601) and a controller (602); used to monitor and control the parameters of the entire processing process in real time.

2. The modular processing device for solid-liquid separation of flushing fluid in core drilling according to claim 1, characterized in that, The inlet (303) of the horizontal centrifuge (301) is connected to the mud conveying pipeline (202), the outlet (304) is connected to the concentration tank (401), and the slag discharge port (305) is connected to the solid collection device (306).

3. The modular processing device for solid-liquid separation of flushing fluid in core drilling according to claim 1, characterized in that, The vibrating screen (302) has a screen aperture of 0.5-2mm and is used to screen smaller solid particles.

4. The modular processing device for solid-liquid separation of flushing fluid in core drilling according to claim 1, characterized in that, The concentration tank (401) is equipped with a liquid level sensor (403) and a stirring motor (404). The liquid level sensor (403) is used to monitor the liquid level in the concentration tank in real time, and the stirring motor (404) is used to stir the mixture of flocculant and liquid.

5. The modular processing device for solid-liquid separation of flushing fluid in core drilling according to claim 1, characterized in that, The pressure range of the filter press module is 0.5-1.5 MPa, which can effectively separate mud cake and clean water.

6. The modular processing device for solid-liquid separation of flushing fluid in core drilling according to claim 1, characterized in that, The sensors (601) and controllers (602) of the control system are used to collect various parameter data during the processing to achieve remote monitoring and operation.

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