Equipment for removing ferromagnetic substances from drilling fluid

Abstract

The utility model provides drilling fluid ferromagnetic substance removing equipment, and relates to the technical field of drilling auxiliary equipment, the drilling fluid ferromagnetic substance removing equipment comprises a material screening module, a machine body frame, a liquid draining module, a magnetic suction module, a cleaning module and a PLC, the material screening module is fixed above the machine body frame in a bolted mode, the liquid draining module is fixedly connected below the material screening module, and the magnetic suction module is fixedly connected below the cleaning module. A magnetic attraction module is arranged below the liquid draining module, the magnetic attraction module is fixed to the inner side of the machine body frame in a bolting mode, a cleaning module is arranged below the magnetic attraction module, the cleaning module is fixed to the machine body frame in a bolting mode, and the PLC is electrically connected with the material screening module and the magnetic attraction module. Drilling fluid can be evenly distributed on the sheet base band through the liquid draining plate, the adsorption time is prolonged, the adsorption capacity of the powerful magnet is improved, the device has a stronger magnetic adsorption effect, ferromagnetic substances in the drilling fluid can be efficiently removed through the device, through multi-layer adsorption filtration, the removal effect is good, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of drilling auxiliary equipment technology, specifically to a drilling fluid ferromagnetic material removal device. Background Technology

[0002] During oil drilling operations, ferromagnetic substances mixed in the drilling fluid can cause severe wear on drilling equipment, affecting its service life and drilling efficiency. Therefore, it is necessary to remove ferromagnetic substances from the drilling fluid. Currently, commonly used methods for removing ferromagnetic substances include magnetic rod adsorption and electromagnetic separation.

[0003] Electromagnetic separation uses the magnetic field generated by an electromagnetic coil to separate ferromagnetic materials. However, this method is energy-intensive, requiring a large amount of electrical energy; the electromagnetic equipment has a complex structure, high manufacturing cost, and is difficult to maintain; furthermore, the strength and distribution of the magnetic field generated by the electromagnetic equipment are difficult to control precisely, resulting in unstable separation effects of ferromagnetic materials.

[0004] The magnetic rod adsorption method involves placing magnetic rods in the drilling fluid circulation path, where the magnetic properties of the rods attract ferromagnetic substances in the drilling fluid. The disadvantages of this method are that the magnetic rods have a limited adsorption area, easily reach saturation, and require frequent replacement, increasing maintenance costs and operation time. Furthermore, the magnetic rods exert significant resistance to the flow of the drilling fluid, affecting its circulation efficiency.

[0005] To address the aforementioned issues, there is an urgent need to develop a drilling fluid ferromagnetic material removal device. Utility Model Content

[0006] This invention relates to a drilling fluid ferromagnetic substance removal device. This invention achieves strong adsorption of drilling fluid by setting up a liquid flow rate controller, a draining plate and a special arrangement of powerful magnets, and removes magnetic substances by scraping, thus solving the technical problem of unstable adsorption effect of drilling fluid in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drilling fluid ferromagnetic material removal device, comprising a screening module, a machine frame, a draining module, a magnetic attraction module, a cleaning module, and a PLC controller. The screening module is bolted to the top of the machine frame, and the draining module is fixedly connected below the screening module. A magnetic attraction module is located below the draining module and bolted to the inside of the machine frame. A cleaning module is located below the magnetic attraction module and bolted to the machine frame. The PLC controller is electrically connected to the screening module and the magnetic attraction module.

[0008] Preferably, the screening module includes a liquid inlet tank, a liquid flow rate controller, a liquid inlet, a filter screen, and a waste discharge tank. The liquid inlet is bolted to the upper left corner of the machine frame. The liquid flow rate controller is bolted to the upper part of the liquid inlet. The liquid inlet tank is bolted to the upper part of the liquid flow rate controller. A filter screen is provided below the liquid inlet. A waste discharge tank is fixedly connected to the left side of the filter screen.

[0009] Preferably, the liquid distribution module includes a liquid distribution port and a liquid distribution plate. The liquid distribution port has a flat opening, and the width of the liquid distribution port corresponds to the width of the magnetic suction module. A liquid distribution plate is fixedly connected to the left side of the liquid distribution port. The liquid distribution plate adopts an alternating wave structure, and the low point of the alternating waves has a liquid drainage hole.

[0010] Preferably, the draining plate is made of non-metallic material, and the upper layer of the draining plate is provided with a hydrophobic coating.

[0011] Preferably, the magnetic attraction module includes a substrate belt, mounting slots, a synchronous toothed belt, a powerful magnet, a driving wheel, a driven wheel, and a low-speed DC motor. The driving wheel and the driven wheel are bolted and fixed to both sides of the machine frame. A synchronous gear belt is movably engaged with the outer sides of the driving wheel and the driven wheel. The driving wheel is hinged to the low-speed DC motor. The driving wheel drives the driven wheel to rotate counterclockwise. The synchronous toothed belt has mounting slots at equal intervals. A substrate belt is fixedly connected to the outer side of the synchronous toothed belt.

[0012] Preferably, the mounting groove is bolted to the synchronous toothed belt. The mounting groove is made of non-magnetic material and includes a groove body, a horizontal partition, a short partition, a tensioning spring, and a magnetic column. The groove body has fixing buckles at its four corners. The short partition is vertically arranged inside the groove body, and the horizontal partition is horizontally arranged inside the groove body. The horizontal partition has a through hole. The tail end of the magnetic column is fixedly connected to the tensioning spring, and the tensioning spring is fixedly connected to the bottom of the groove body. The front end of the magnetic column has a front retaining ring and a rear retaining ring. The magnetic column passes through the through hole. The front retaining ring is located at the front end of the horizontal partition, and the rear retaining ring is located at the rear end of the horizontal partition.

[0013] Preferably, the thickness and width of the powerful magnet are the same, and the powerful magnet does not have blind holes. The diameter of the blind hole corresponds to the diameter of the magnetic column. The powerful magnets are arranged in groups of four. The first powerful magnet is arranged with its S-pole facing upward, the second powerful magnet is arranged with its S-pole facing left, the third powerful magnet is arranged with its S-pole facing downward, and the fourth powerful magnet is arranged with its S-pole facing right. The powerful magnets are arranged at equal intervals in each group.

[0014] Preferably, the cleaning module includes a liquid outlet, a scraper, a scraper spring, and a waste baffle. The liquid outlet is located at the front end of the machine frame. The scraper is located below the synchronous toothed belt and is bolted to the machine frame. The width of the scraper corresponds to the width of the synchronous toothed belt. The scraper spring is bolted to one side of the scraper. The scraper spring has a support rod that limits the position of the scraper. A waste baffle is located below the scraper.

[0015] Preferably, the PLC controller is electrically connected to the liquid flow rate controller and the low-speed DC motor.

[0016] Beneficial effects: This utility model provides a drilling fluid ferromagnetic material removal device, which has the following beneficial effects compared with the existing technology:

[0017] This invention, by installing a liquid flow rate controller above the inlet, can control the inlet flow rate according to the viscosity of the drilling fluid. By fixing a drain plate to the front end of the equalization port, the flow rate of the drilling fluid in the device is slowed down, and the drilling fluid can be evenly distributed on the substrate, effectively improving the adsorption effect of the strong magnet.

[0018] This utility model features a toothed belt with multiple sets of powerful magnets installed in a fixed manner. This installation method effectively enhances the magnetic strength on one side of the substrate belt and reduces the magnetic strength on the other side, thereby effectively increasing the device's absorption of magnetic substances in the drilling fluid.

[0019] In this invention, a strong magnet attracts ferromagnetic materials to the scraper, which then scrapes them off. The rotation angle of the scraper spring adjusts the limiting force of the support rod, achieving efficient removal of ferromagnetic materials from the drilling fluid. Through multi-layer adsorption and filtration, the removal effect is good and the efficiency is high.

[0020] The control system of this utility model is simple, reduces the difficulty of operation, and improves work efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a front view section view of the present invention;

[0024] Figure 3 This is a top view of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the present invention after the frame has been removed;

[0026] Figure 5 This is a schematic diagram of part A of the present utility model;

[0027] Figure 6 This is a schematic diagram of the magnetic suction module of this utility model.

[0028] Figure 7 This is a schematic diagram of the mounting groove of this utility model;

[0029] Figure 8 This is a top view of the mounting slot of this utility model;

[0030] In the picture:

[0031] 1. Screening module; 101. Liquid inlet tank; 102. Liquid flow rate controller; 103. Liquid inlet; 104. Filter screen; 105. Waste discharge tank.

[0032] 2. Body frame;

[0033] 3. Drainage module, 301, liquid distribution port, 302, drainage plate, 303, drainage hole;

[0034] 4. Magnetic module, 401. Film base strip, 402. Mounting slot, 4021. Slot body, 4022. Horizontal partition, 4023. Low partition, 4024. Tensioning spring, 4025. Magnetic column, 4026. Front retaining ring, 4027. Rear retaining ring;

[0035] 403. Synchronous toothed belt; 404. Powerful magnet; 405. Driving pulley; 406. Driven pulley; 407. Low-speed DC motor.

[0036] 5. Cleaning module, 501. Liquid outlet, 502. Scraper, 503. Scraper spring, 504. Waste baffle. Detailed Implementation

[0037] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. The technical solutions of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0038] Please see Figure 1-8 This utility model provides a technical solution:

[0039] The drilling fluid ferromagnetic material removal equipment includes a screening module 1, a machine frame 2, a draining module 3, a magnetic suction module 4, a cleaning module 5, and a PLC controller. The screening module 1 is bolted to the top of the machine frame 2, and the draining module 3 is fixedly connected to the bottom of the screening module 1. The magnetic suction module 4 is located below the draining module 3 and is bolted to the inside of the machine frame 2. The cleaning module 5 is located below the magnetic suction module 4 and is bolted to the machine frame 2. The PLC controller is electrically connected to the screening module 1 and the magnetic suction module 4. The operator adjusts the feeding speed and motor speed in the PLC electrical control system according to the concentration and viscosity of the drilling fluid.

[0040] In some embodiments, the front and rear frame plates of the body frame 2 can be opened to facilitate cleaning of the substrate 401 or replacement of the powerful magnet 404.

[0041] In some embodiments, the screening module 1 includes a liquid inlet 101, a liquid flow rate controller 102, a liquid inlet 103, a filter screen 104, and a waste discharge trough 105. The liquid inlet 103 is bolted to the upper left corner of the machine frame 2. The liquid flow rate controller 102 is bolted to the top of the liquid inlet 103, and the liquid inlet 101 is bolted to the top of the liquid flow rate controller 102. After the drilling fluid enters the liquid inlet, the liquid flow rate controller 102 adjusts the liquid inlet speed according to the characteristics of the drilling fluid. The filter screen 104 is provided below the liquid inlet 103 to facilitate the filtration of impurities. The waste discharge trough 105 is fixedly connected to the left side of the filter screen 104 to discharge waste impurities from the device.

[0042] In some embodiments, the drain plate 302 adopts an interlaced wave structure and has drain holes 303 at the low point of the interlaced waves. The drain plate 302 is made of non-metallic material and has a hydrophobic coating on its upper layer.

[0043] In some embodiments, the magnetic module 4 includes a substrate belt 401, mounting grooves 402, a synchronous toothed belt 403, a powerful magnet 404, a drive wheel 405, a driven wheel 406, and a low-speed DC motor 407. The drive wheel 405 and the driven wheel 406 are bolted and fixed to both sides inside the frame 2. The drive wheel 405 and the driven wheel 406 are movably meshed with a synchronous gear belt on their outer sides. The drive wheel 405 is hinged to the low-speed DC motor 407. The speed of the low-speed DC motor 407 can be controlled by a PLC controller. The PLC controller is fixedly installed on the outer side of the low-speed DC motor 407. The drive wheel 405 drives the driven wheel 406 to rotate counterclockwise. The synchronous toothed belt 403 is provided with mounting grooves 402 at equal intervals. The substrate belt 401 is fixedly connected to the outer side of the synchronous toothed belt 403. The outer side of the substrate belt 401 is coated with polytetrafluoroethylene.

[0044] In some embodiments, the mounting groove 402 is bolted and fixed to the synchronous toothed belt 403. The mounting groove 402 is made of non-magnetic material and includes a groove body 4021, a horizontal partition 4022, a short partition 4023, a tensioning spring 4024, and a magnetic column 4025. The groove body 4021 has fixing buckles at its four corners. The groove body 4021 is bolted and fixedly installed in the groove of the synchronous toothed belt 403. The short partition 4023 is vertically provided inside the groove body 4021. The short partition 4023 facilitates the installation of the powerful magnet 404 and simultaneously protects the powerful magnet 404. 04. Limiting is performed. A transverse partition 4022 is provided in the groove 4021. A through hole is provided on the transverse partition 4022. The tail end of the magnetic column 4025 is fixedly connected to the tension spring 4024. The tension spring 4024 is fixedly connected to the bottom of the groove 4021. The tension spring 4024 is always kept in a stretched state. A front retaining ring 4026 and a rear retaining ring 4027 are provided at the front end of the magnetic column 4025. The magnetic column 4025 passes through the through hole. The front retaining ring 4026 is located at the front end of the transverse partition 4022, and the rear retaining ring 4027 is located at the rear end of the transverse partition 4022.

[0045] In some embodiments, when the powerful magnet 404 is installed, it is inserted into the mounting groove 402 along the short partition 4023. The position of the magnetic column 4025 in the transverse partition 4022 corresponds to the position of the blind hole at the tail end of the powerful magnet 404. After the powerful magnet 404 is inserted, the magnetic column 4025 is inserted into the blind hole under the magnetic attraction of the powerful magnet 404. During the outward stretching of the magnetic column 4025, the tightening spring 4024 is continuously stretched, and at the same time, the rear retaining ring 4027 stops the magnetic column 4025 from moving under the obstruction of the transverse partition 4022, thereby fixing the powerful magnet 404.

[0046] In some embodiments, the thickness and width of the powerful magnet 404 are the same. The powerful magnet 404 does not have blind holes. The diameter of the blind holes corresponds to the diameter of the magnetic column 4025. The powerful magnets 404 are arranged in groups of four. The first powerful magnet 404 is arranged with its S-pole facing upward, the second powerful magnet 404 is arranged with its S-pole facing left, the third powerful magnet 404 is arranged with its S-pole facing downward, and the fourth powerful magnet 404 is arranged with its S-pole facing right. The powerful magnets 404 are evenly spaced in each group. Each group of powerful magnets 404 adopts a Helbeck magnetic pole arrangement. The periodic rotation design of the powerful magnets enhances the magnetic field through the directional superposition and cancellation of magnetic lines of force. This results in each group of powerful magnets 404 having stronger magnetic attraction performance on one side of the substrate 401 and weaker magnetic attraction performance on the opposite side. The length of the powerful magnet 404 corresponds to the width of the synchronous toothed belt 403.

[0047] In some embodiments, each group of powerful magnets 404 can be connected by a back magnetic plate to further enhance the magnetic attraction capability of each group of powerful magnets 404.

[0048] In some embodiments, the powerful magnet 404 is arranged in a stepped alternating pattern, and the length of the powerful magnet 404 is less than the width of the synchronous toothed belt 403.

[0049] In some embodiments, the cleaning module 5 includes an outlet 501, a scraper 502, a scraper spring 503, and a waste baffle 504. The outlet 501 is located at the front end of the machine frame 2. The scraper 502 is located below the synchronous toothed belt 403. The scraper 502 is bolted to the machine frame 2. The width of the scraper 502 corresponds to the width of the synchronous toothed belt 403. The scraper spring 503 is bolted to one side of the scraper 502. The scraper spring 503 has a support rod. The lower support rod is fixed to the limiting block in the machine frame 2. The upper support rod limits the position of the scraper 502. A waste baffle 504 is provided below the scraper 502.

[0050] In some embodiments, a PTC constant temperature heating plate is fixedly connected to the lower surface of the scraper 502. The PTC constant temperature heating plate is electrically connected to the PLC controller. By heating the scraper 502, the efficiency of the scraper 502 in removing magnetic materials is improved.

[0051] In some embodiments, the powerful magnet 404 is one of neodymium iron boron permanent magnets, ferrite permanent magnets, and AlNiCo magnets.

[0052] In some embodiments, the alternating wave structure of the drain plate 302 can evenly disperse the drilling fluid. The drilling fluid drips evenly onto the base strip 401 through the drain hole 303. The counterclockwise rotation of the base strip 401 further increases the contact between the base strip 401 and the drilling fluid, thereby improving the magnetic attraction performance of the device. This device has low flow resistance to the drilling fluid and will not significantly affect the normal circulation of the drilling fluid, ensuring the continuity and efficiency of drilling operations.

[0053] Example 1: In this invention, based on the concentration and viscosity of the drilling fluid, the inlet flow rate of the liquid flow rate controller 102 and the rotation speed of the low-speed DC motor 407 are adjusted on the PLC controller. When the equipment is in use, the low-speed DC motor 407 is started first. The low-speed DC motor 407 drives the drive wheel 405 and the driven wheel 406 to rotate, thereby driving the synchronous toothed belt 403 and the substrate belt 401 to rotate. The drilling fluid pipeline is connected to the inlet tank 101. The drilling fluid first passes through the filter screen 104 to remove larger impurities. The drilling fluid then flows into the drain plate 302 through the equalization port 301. Due to the alternating wave design of the drain plate 302... The drilling fluid is evenly distributed on the substrate belt 401 through the drain plate 302. The drilling fluid flows downward along the substrate belt 401. When it passes through the set of strong magnets 404 embedded in the synchronous toothed belt 403, the ferromagnetic materials contained in the drilling fluid are attracted to the substrate belt 401 and rotate with the substrate belt 401 to the scraper 502. Under the pressure of the scraper spring 503, the scraper 502 is in close contact with the substrate belt 401. The magnets attracted to the substrate belt 401 are scraped away from the magnetic range of the strong magnets 404 by the scraper 502 and fall into the waste port for collection along the waste baffle 504. The treated drilling fluid is collected through the outlet 501 for reuse.

[0054] This invention uses a strong 404 magnet with stable magnetic properties and a uniform magnetic field distribution, which can ensure stable and efficient adsorption and separation of ferromagnetic materials. It overcomes the problem of difficulty in accurately controlling the magnetic field strength and distribution in electromagnetic separation methods, and ensures the stability of the removal effect of ferromagnetic materials in drilling fluid.

[0055] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. For those skilled in the art to which the present invention pertains, several simple deductions or substitutions can be made without departing from the present invention, and all such deductions or substitutions should be considered as falling within the scope of patent protection determined by the submitted claims.

Claims

1. A drilling fluid ferromagnetic material removal apparatus, characterized by: The system includes a screening module, a machine frame, a draining module, a magnetic suction module, a cleaning module, and a PLC controller. The screening module is bolted to the top of the machine frame, and the draining module is fixedly connected to the bottom of the screening module. The magnetic suction module is located below the draining module and is bolted to the inside of the machine frame. The cleaning module is located below the magnetic suction module and is bolted to the machine frame. The PLC controller is electrically connected to the screening module and the magnetic suction module.

2. The drilling fluid ferromagnetic material removal apparatus of claim 1, wherein: The screening module includes a liquid inlet tank, a liquid flow rate controller, a liquid inlet, a filter screen, and a waste discharge tank. The liquid inlet is bolted to the upper left corner of the machine frame. The liquid flow rate controller is bolted to the top of the liquid inlet. The liquid inlet tank is bolted to the top of the liquid flow rate controller. A filter screen is provided below the liquid inlet. A waste discharge tank is fixedly connected to the left side of the filter screen.

3. The drilling fluid ferromagnetic material removal apparatus of claim 2, wherein: The liquid distribution module includes a liquid distribution port and a liquid distribution plate. The liquid distribution port has a flat opening, and the width of the liquid distribution port corresponds to the width of the magnetic suction module. The liquid distribution port is fixedly connected to the left side of the liquid distribution port. The liquid distribution plate adopts an interlaced wave structure, and the low point of the interlaced waves is provided with a liquid distribution hole.

4. The drilling fluid ferromagnetic material removal apparatus of claim 3, wherein: The draining plate is made of non-metallic material, and a hydrophobic coating is provided on the upper layer of the draining plate.

5. The drilling fluid ferromagnetic material removal apparatus of claim 2, wherein: The magnetic attraction module includes a substrate belt, mounting slots, a synchronous toothed belt, a powerful magnet, a drive wheel, a driven wheel, and a low-speed DC motor. The drive wheel and driven wheel are bolted and fixed to both sides of the machine frame. A synchronous gear belt is movably meshed with the outer sides of the drive wheel and driven wheel. The drive wheel is hinged to the low-speed DC motor. The drive wheel drives the driven wheel to rotate counterclockwise. The synchronous toothed belt has mounting slots at equal intervals. The substrate belt is fixedly connected to the outer side of the synchronous toothed belt.

6. The drilling fluid ferromagnetic material removal apparatus of claim 5, wherein: The mounting groove is bolted and fixed to the synchronous toothed belt. The mounting groove is made of non-magnetic material and includes a groove body, a horizontal partition, a short partition, a tensioning spring, and a magnetic column. The groove body has fixing buckles at its four corners. The short partition is vertically arranged inside the groove body, and the horizontal partition is horizontally arranged inside the groove body. The horizontal partition has a through hole. The tail end of the magnetic column is fixedly connected to the tensioning spring, and the tensioning spring is fixedly connected to the bottom of the groove body. The front end of the magnetic column has a front retaining ring and a rear retaining ring. The magnetic column passes through the through hole. The front retaining ring is located at the front end of the horizontal partition, and the rear retaining ring is located at the rear end of the horizontal partition.

7. The drilling fluid ferromagnetic material removal apparatus of claim 5, wherein: The strong magnets have the same thickness and width. The strong magnets are without blind holes. The diameter of the blind holes corresponds to the diameter of the magnetic column. The strong magnets are grouped into sets of four. The first strong magnet has its S-pole facing upwards, the second strong magnet has its S-pole facing left, the third strong magnet has its S-pole facing downwards, and the fourth strong magnet has its S-pole facing right. The strong magnets are evenly spaced in each group.

8. The drilling fluid ferromagnetic material removal apparatus of claim 5, wherein: The cleaning module includes a liquid outlet, a scraper, a scraper spring, and a waste baffle. The liquid outlet is located at the front end of the machine frame. The scraper is located below the synchronous toothed belt and is bolted to the machine frame. The width of the scraper corresponds to the width of the synchronous toothed belt. The scraper spring is bolted to one side of the scraper. The scraper spring has a support rod that limits the position of the scraper. A waste baffle is located below the scraper.

9. The drilling fluid ferromagnetic material removal apparatus of claim 5, wherein: The substrate surface is coated with polytetrafluoroethylene, and the PLC controller is electrically connected to the liquid flow rate controller and the low-speed DC motor.

Images