Slurry iron removal device

Abstract

The utility model relates to the technical field of drilling processing equipment, in particular to a slurry deironing device which comprises a deironing cavity and an air blowing pipeline, a raw material inlet is formed in the upper portion of the deironing cavity, a raw material outlet is formed in the bottom of the deironing cavity and connected with a pipeline tee joint, and a finished product outlet is formed in the side face of the pipeline tee joint of the air blowing pipeline. An iron material outlet is formed in the bottom of the blowing pipeline iron removal cavity, a cavity cover plate is arranged at the top of the blowing pipeline iron removal cavity, and a blowing pipeline and a cleaning pipeline are installed above the blowing pipeline cavity cover plate. According to the slurry iron removal device, the iron attraction medium can strongly adsorb ferromagnetic impurities in slurry under the action of a high-intensity magnetic field generated by the permanent magnet, so that drilling fluid is effectively purified, the iron attraction medium can be regularly cleaned through the synergistic effect of the air blowing pipeline and the cleaning pipeline, and the good iron removal effect of the iron attraction medium is kept. According to the device, the control system is adopted for accurately controlling all the assemblies, automatic operation is achieved, and the labor intensity of operators is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling processing equipment, and specifically, to an iron removal device for slurry. Background Art

[0002] During the process of oil drilling, drilling fluid plays multiple roles such as carrying cuttings, cooling the drill bit, balancing formation pressure, and improving lubricity, which is crucial for achieving safe and efficient drilling operations.

[0003] However, in the drilling engineering, when the drilling fluid flows back to the ground, it will carry a large amount of drill cuttings and mud waste liquid, which often contain a certain amount of ferromagnetic impurities. The existence of these ferromagnetic impurities will seriously interfere with the signal quality of instruments such as magnetic positioning and resistivity, and may further cause accelerated wear or erosion of downhole tools. If these ferromagnetic impurities cannot be removed in time and effectively, it will not only cause huge economic losses, but also may lead to well control accidents, posing a serious threat to the safety of drilling operations. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an iron removal device for slurry to solve the problem that in the drilling engineering, when the drilling fluid flows back to the ground, it will carry a large amount of drill cuttings and mud waste liquid, which often contain a certain amount of ferromagnetic impurities as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides an iron removal device for slurry, including an iron removal cavity. The upper part of the iron removal cavity is provided with a raw material inlet, and the bottom is provided with a raw material outlet. A pipe tee is connected to the raw material outlet. The side of the pipe tee is provided with a finished product outlet, and the bottom is provided with an iron material outlet. The top of the iron removal cavity is provided with a cavity cover plate. Above the cavity cover plate, an air blowing pipeline and a cleaning pipeline are respectively installed. Inside the iron removal cavity, a cavity partition is provided. On both sides of the iron removal cavity separated by the cavity partition, iron absorption media are respectively installed. Outside the iron removal cavity, a movable magnetic system cabinet is provided. On both sides of the movable magnetic system cabinet, iron removal components are installed, and permanent magnets are installed inside.

[0006] Preferably, the iron absorption media are symmetrically arranged on both sides of the cavity partition. The iron absorption media are divided into several groups, and each group is composed of a combination of four-sided ring-shaped structures. The iron absorption media are made of non-magnetic stainless steel materials, and the outside of the iron absorption media is completely sealed.

[0007] Preferably, the permanent magnets are symmetrically arranged on both sides of the movable magnetic system cabinet. The permanent magnets form a planar magnetic system, and multiple planar magnetic systems form a closed magnetic circuit.

[0008] Preferably, the iron removal component is any one of a linear motor, a cylinder or a hydraulic cylinder. The iron removal component is installed on the frame, and the telescopic rod of the iron removal component is connected to the outer wall of the movable magnetic system cabinet. The moving range of the telescopic rod of the iron removal component is such that the closed magnetic circuit in the movable magnetic system cabinet passes through the iron removal cavity and disengages from the iron removal cavity.

[0009] Preferably, an air inlet valve is installed on the air blowing pipeline, and a water inlet valve is installed on the cleaning pipeline. The water inlet pressure of the water inlet valve is not less than 0.2 MPa, and the air inlet valve is connected to compressed air.

[0010] Preferably, the raw material inlet, the finished product outlet, the iron material outlet, the air blowing pipeline, the cleaning pipeline and the iron removal component are all electrically connected to the control system and controlled by the control system.

[0011] Preferably, a separator is provided on the surface of the iron absorption medium close to the iron removal cavity and the cavity partition. The material of the separator is rubber or plastic material.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In this slurry iron removal device, through a clever design, the efficient automatic removal of ferromagnetic impurities in the drilling fluid is realized. The iron absorption medium in the device can strongly adsorb the ferromagnetic impurities in the slurry under the action of the strong magnetic field generated by the permanent magnet, thereby effectively purifying the drilling fluid. At the same time, the device also has an automatic cleaning function. Through the coordinated action of the air blowing pipeline and the cleaning pipeline, the iron absorption medium can be regularly cleaned to maintain its good iron removal effect.

[0014] In addition, the device uses a control system to precisely control each component, realizing automatic operation and greatly reducing the labor intensity of operators. Generally speaking, the slurry iron removal device of the present utility model not only improves the iron removal efficiency of the drilling slurry, but also effectively guarantees the safe and efficient progress of the drilling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the iron removal working state in the present utility model;

[0016] Figure 2 is a schematic diagram of the iron discharging working state in the present utility model;

[0017] Figure 3 is a schematic side view structure diagram of the present utility model;

[0018] Figure 4 is a schematic diagram of the internal structure of the iron removal cavity in the present utility model;

[0019] The meanings of the various reference numerals in the figure are as follows:

[0020] 1. Iron removal cavity; 2. Movable magnetic system cabinet; 3. Iron material outlet; 4. Finished product outlet; 5. Iron removal component; 6. Raw material inlet; 7. Blowing pipeline; 8. Cleaning pipeline; 9. Cavity cover plate; 10. Iron absorption medium; 11. Cavity partition; 12. Isolation part; 13. Permanent magnet. Detailed implementation manner

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] The present invention provides a slurry iron removal device, as Figures 1 - 4 shown, which includes an iron removal cavity 1. A raw material inlet 6 is arranged at the upper part of the iron removal cavity 1, and a raw material outlet is arranged at the bottom. A pipe tee is connected to the raw material outlet. A finished product outlet 4 is arranged on the side of the pipe tee, and an iron material outlet 3 is arranged at the bottom. A cavity cover plate 9 is arranged at the top of the iron removal cavity 1. A blowing pipeline 7 and a cleaning pipeline 8 are respectively installed above the cavity cover plate 9; a cavity partition 11 is arranged inside the iron removal cavity 1, and iron absorption media 10 are respectively installed on both sides of the iron removal cavity 1 separated by the cavity partition 11; a movable magnetic system cabinet 2 is arranged outside the iron removal cavity 1, iron removal components 5 are installed on both sides of the movable magnetic system cabinet 2, and a permanent magnet 13 is installed on the inner side. Under the action of the strong magnetic field generated by the permanent magnet, the iron absorption media in the device can strongly adsorb ferromagnetic impurities in the slurry, thereby effectively purifying the slurry and improving the iron removal efficiency. The blowing pipeline and the cleaning pipeline installed above the cavity cover plate can regularly clean the iron absorption media, maintain their good iron removal effect, and reduce the manual maintenance cost. Through the design of the movable magnetic system cabinet and the iron removal components, the ferromagnetic impurities adsorbed on the iron absorption media can be conveniently discharged, further improving the use convenience of the device. The whole device has a compact structure and a reasonable layout, so that while achieving high-efficiency iron removal, it also occupies a small space. The raw material inlet, the finished product outlet, the iron material outlet, the blowing pipeline, the cleaning pipeline and the iron removal components are all electrically connected to the control system, realizing automatic operation and greatly reducing the labor intensity of the operators.

[0023] In this embodiment, the iron absorption media 10 are symmetrically arranged on both sides of the cavity partition 11 to ensure uniform magnetic field distribution and improve the iron removal efficiency. The iron absorption media 10 are divided into several groups, and each group is composed of a combination of four-sided ring-shaped structures, increasing the iron absorption area and improving the adsorption capacity. The iron absorption media 10 are made of non-rusting and magnetically conductive materials, are corrosion-resistant, have an extended service life, and the outside of the iron absorption media 10 is completely sealed. This prevents slurry leakage and keeps the inside of the equipment clean.

[0024] Specifically, the permanent magnets 13 are symmetrically arranged on both sides of the movable magnetic system cabinet 2 to form a stable magnetic field, enhancing the iron absorption effect. The permanent magnets 13 constitute a planar magnetic system, and multiple planar magnetic systems form a closed magnetic circuit to increase the magnetic field strength and ensure the iron removal effect.

[0025] Furthermore, the iron removal assembly 5 is any one of a linear motor, a cylinder, or a hydraulic cylinder, providing stable power output to ensure the smooth progress of the iron removal process. The iron removal assembly 5 is installed on the frame with a stable structure and smooth operation. Moreover, the telescopic rod of the iron removal assembly 5 is connected to the outer wall of the movable magnetic system cabinet 2 to achieve remote control and improve safety. The moving range of the telescopic rod of the iron removal assembly 5 is such that the closed magnetic circuit in the movable magnetic system cabinet 2 passes through and disengages from the iron removal cavity 1. The moving range of the telescopic rod of the iron removal assembly is reasonably designed to ensure that the closed magnetic circuit can smoothly pass through and disengage from the iron removal cavity, realizing automatic iron removal.

[0026] Furthermore, an intake valve is installed on the air blowing pipeline 7 to facilitate the control of the air blowing timing and intensity, improving the cleaning effect. A water inlet valve is installed on the cleaning pipeline 8, and the water inlet pressure of the water inlet valve is not less than 0.2 MPa to ensure sufficient cleaning force and effectively remove impurities on the iron absorption medium. The intake valve is connected to compressed air to provide a stable air source and ensure the normal operation of the air blowing pipeline.

[0027] Furthermore, the raw material inlet 6, the finished product outlet 4, the iron material outlet 3, the air blowing pipeline 7, the cleaning pipeline 8, and the iron removal assembly 5 are all electrically connected to the control system and controlled by the control system to reduce the manual operation cost.

[0028] Furthermore, an isolator 12 is provided on the surface of the iron absorption medium 10 close to the iron removal cavity 1 and the cavity partition 11 to prevent the iron absorption medium from directly contacting the equipment and reduce wear. The material of the isolator 12 is rubber or plastic material, which has good elasticity and wear resistance, prolonging the service life of the equipment.

[0029] When in use, the iron removal device for slurry of the present utility model has three working states, including an iron removal working state, an iron discharging working state, and a cleaning working state.

[0030] As Figure 1As shown, when the above device is in the deironing working state, the deironing assembly 5 is closed, the telescopic rod is inside the deironing assembly 5, the permanent magnets 13 inside the movable magnetic system cabinet 2 are located on both sides of the deironing chamber 1, and the closed magnetic circuit generated by the permanent magnets 13 passes through the iron-absorbing medium 10 and gathers in the working gap. The iron-absorbing medium 10 has a strong magnetic force to absorb ferromagnetic impurities. At this time, under the control of the control system, the raw material inlet 1 is opened, the finished product outlet 4 is opened, and the iron material outlet 3 is closed. The slurry flows from top to bottom through the iron-absorbing medium 10 in the deironing chamber 1. Under the action of the strong magnetic force of the iron-absorbing medium 10, the ferromagnetic impurities in the slurry will be adsorbed on its surface, thereby achieving the effect of removing the ferromagnetic impurities in the slurry.

[0031] When the above device reaches the set iron removal time in the iron removal state, the device automatically stops the iron removal working state and enters the iron removal working state.

[0032] like Figure 2 As shown, when the above-mentioned device is in the iron removal working state, under the control of the control system, the raw material inlet 6 is closed, the finished product outlet 4 is closed, the iron material outlet 3 is opened, the air blowing pipeline 7 is opened, the deironing component 5 is started, and the telescopic rod of the deironing component 5 is extended, and the movable magnetic cabinet 2 drives the permanent magnet 13 to disengage from the deironing cavity 1, and the iron-absorbing medium 10 is separated from the closed magnetic circuit. Due to the disappearance of the external magnetic field, the iron-absorbing medium 10 no longer has magnetic force. Under the action of gravity and the pressurized liquid and gas introduced by the air blowing pipeline 7, the ferromagnetic impurities adsorbed on its surface will be discharged from the iron material outlet 3 and enter the iron material temporary storage box. When the above-mentioned iron removal work is completed, the device enters the deironing working state again, and operates in this cycle.

[0033] When the device is in the cleaning working state after the iron removal working state is completed, the device can be selected to enter the cleaning working state. When the above device is in the cleaning working state, under the control of the control system, the cleaning pipeline 8 is opened, and the air blowing pipeline 7 and the cleaning pipeline 8 are simultaneously introduced with pressurized liquid and gas containing cleaning agent to clean the surface of the iron removal chamber 1 and the iron absorbing medium 10.

[0034] When the device needs to be repaired, the cavity cover 9 can be opened, and the magnetic absorption medium 10 can be taken out for repair or replacement.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A slurry iron removal device, characterized in that: It includes a deironing cavity (1). A raw material inlet (6) is provided at the upper part of the deironing cavity (1), and a raw material outlet is provided at the bottom. A pipe tee is connected to the raw material outlet. A finished product outlet (4) is provided on the side of the pipe tee, and an iron material outlet (3) is provided at the bottom. A cavity cover plate (9) is provided at the top of the deironing cavity (1). Above the cavity cover plate (9), an air blowing pipeline (7) and a cleaning pipeline (8) are respectively installed; a cavity partition (11) is arranged inside the deironing cavity (1), and magnetic iron absorption media (10) are respectively installed on both sides of the deironing cavity (1) separated by the cavity partition (11); a movable magnetic system cabinet (2) is arranged outside the deironing cavity (1), and iron removal components (5) are installed on both sides of the movable magnetic system cabinet (2), and permanent magnets (13) are installed on the inner side.

2. The iron removal device for slurry according to claim 1, wherein: The magnetic iron absorption media (10) are symmetrically arranged on both sides of the cavity partition (11). The magnetic iron absorption media (10) are divided into several groups, and each group is composed of a four-sided ring structure combination. The magnetic iron absorption media (10) are made of a stainless non-magnetic conductive material, and the outside of the magnetic iron absorption media (10) is completely sealed.

3. The iron removal device for slurry according to claim 1, characterized in that: The permanent magnets (13) are symmetrically arranged on both sides of the movable magnetic system cabinet (2). The permanent magnets (13) form a planar magnetic system, and multiple planar magnetic systems form a closed magnetic circuit.

4. The iron removal device for slurry according to claim 1, wherein: The iron removal component (5) is any one of a linear motor, a cylinder or a hydraulic cylinder. The iron removal component (5) is installed on a frame, and the telescopic rod of the iron removal component (5) is connected to the outer wall of the movable magnetic system cabinet (2). The moving range of the telescopic rod of the iron removal component (5) is such that the closed magnetic circuit in the movable magnetic system cabinet (2) passes through and disengages from the deironing cavity (1).

5. The iron removal device for slurry according to claim 1, characterized in that: An air inlet valve is installed on the air blowing pipeline (7), and a water inlet valve is installed on the cleaning pipeline (8). The water inlet pressure of the water inlet valve is not less than 0.2 MPa, and the air inlet valve is connected to compressed air.

6. The iron removal device for slurry according to claim 1, characterized in that: The raw material inlet (6), the finished product outlet (4), the iron material outlet (3), the air blowing pipeline (7), the cleaning pipeline (8) and the iron removal component (5) are all electrically connected to a control system and are controlled by the control system.

7. The iron removal device for slurry according to claim 1, wherein: An isolator (12) is provided on the surface of the magnetic iron absorption media (10) close to the deironing cavity (1) and the cavity partition (11). The material of the isolator (12) is rubber or plastic material.

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