Barite powder modifying and activating device for drilling fluid

Abstract

The utility model relates to a barite powder modifying and activating device for drilling fluid, and belongs to the technical field of barite powder processing. The device comprises a modification mixing bin, a material dispersing mechanism and a convection mechanism, air inlet holes are formed in the side face of the modification mixing bin, and a feeding mounting pipe is arranged at the upper end; the material dispersing mechanism is composed of a material distributing assembly and a material dispersing driving part, the material distributing assembly is located in the feeding installation pipe and is driven by the material dispersing driving part to reciprocate, it is guaranteed that barite powder is evenly dispersed into the modification mixing bin, local accumulation is avoided, and it is guaranteed that particles make full contact with a modifier; the convection mechanism comprises a convection assembly and is installed in the air inlet, airflow circulation is formed by generating pushing force, the uniform distribution condition of the barite powder in the modifier is remarkably improved through combination of the material dispersing mechanism and the convection mechanism, dynamic contact between the barite powder and the modifier is promoted, interaction between the barite powder and the modifier is further enhanced, and the service life of the modifier is prolonged. The modification is more thorough and consistent, and the modification efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of barite powder processing technology, and in particular to a device for modifying and activating barite powder for drilling fluid. Background Technology

[0002] Barite powder used in drilling fluids is a key drilling auxiliary material, its main function being to increase the density of the drilling mud. During drilling, in order to effectively carry cuttings and maintain wellbore stability, it is necessary to ensure that the drilling mud has an appropriate density. By adding barite powder, the density of the drilling mud can be significantly increased, making it suitable for drilling needs under different geological conditions.

[0003] Furthermore, barite powder can also be used to cool drill bits, preventing their lifespan from being shortened due to high temperatures. In terms of ensuring drilling safety, barite powder can balance the pressure of underground oil and gas layers by adjusting the mud density, preventing unexpected situations such as oil well blowouts. At the same time, it can also seal tiny cracks and pores on the well wall, preventing mud and oil / gas leaks and ensuring the continuity and stability of drilling operations.

[0004] Key performance indicators for barite powder in drilling fluids include density, water-soluble alkaline earth metal content, acid solubility, and sieve residue. Optimizing these characteristics helps achieve more efficient drilling operations while improving the overall economic benefits and safety of drilling projects. Therefore, ensuring the uniform distribution of barite powder in drilling fluids is extremely important for its modification and activation effects.

[0005] Existing drilling fluid barite powder modification and activation devices, by setting up crushing and filtration units, can fully crush and filter materials before they enter the reaction chamber, ensuring the uniformity and fineness of material particles, thereby improving the efficiency and effectiveness of subsequent modification and activation treatments.

[0006] However, in its use, barite powder is piled up, and the flow rate of barite powder is controlled by controlling the size of the feed port. This method will cause the barite powder to be unevenly distributed in the modifier, resulting in differences in the modification effect between barite powder particles, which in turn affects the use effect of barite powder and reduces the efficiency of drilling work. Utility Model Content

[0007] This utility model provides a barite powder modification and activation device for drilling fluid, which solves the technical problem in the background art where the barite powder is unevenly distributed in the modifier, resulting in differences in the modification effect between barite powder particles.

[0008] This utility model provides a device for modifying and activating barite powder for drilling fluid, comprising:

[0009] A modified mixing chamber, wherein an air inlet is provided on the side of the modified mixing chamber and a feed installation pipe is provided at the upper end of the modified mixing chamber;

[0010] The material distribution mechanism includes a material distribution assembly and a material distribution drive unit. The material distribution assembly is disposed inside the feeding installation pipe, and the material distribution drive unit is installed inside the feeding installation pipe. The material distribution drive unit can operably drive the material distribution assembly to reciprocate.

[0011] The convection mechanism includes a convection component installed in the air inlet. The convection component is used to provide a driving force and generate a convection effect for the barite powder and modifier distributed in the modified mixing chamber by the bulk material mechanism.

[0012] In one embodiment, the fabric assembly includes a movable slide frame, a screen is disposed inside the movable slide frame, a movable groove is opened inside the feed mounting pipe, the movable slide frame is disposed in the movable groove, and the bulk material driving unit drives the movable slide frame to reciprocate in the movable groove.

[0013] In one embodiment, the device further includes a turbulence mechanism, which includes a turbulence fan. An output funnel is fixedly disposed at the lower end of the modified mixing chamber, and the turbulence fan is installed inside the output end of the output funnel. The turbulence mechanism is used to provide a driving force and generate a disturbance effect on the barite powder and modifier distributed by the bulk material mechanism in the modified mixing chamber.

[0014] In one embodiment, the turbulence mechanism includes a positioning drive frame, a guide pipe, and a diffuser plate. The guide pipe is disposed inside the modified mixing chamber and is located above the turbulence fan. The guide pipe is fixedly connected to the inner wall of the modified mixing chamber through the positioning drive frame. The diffuser plate is fixedly installed on the inner upper surface of the modified mixing chamber and is located above the guide pipe.

[0015] In one embodiment, the turbulence mechanism further includes:

[0016] The driven gear ring is rotatably engaged on the upper and / or lower sides of the positioning drive frame;

[0017] A turbulence transmission tube is fixedly installed on the side of the driven gear ring away from the positioning drive frame;

[0018] A turbulence fan blade is fixedly disposed on the side of the turbulence transmission tube away from the positioning drive frame;

[0019] The positioning drive frame has a turbulence power groove on the side near the turbulence transmission tube. The turbulence motor is fixedly installed in the turbulence power groove. A drive gear is fixedly installed at the output end of the turbulence motor. The drive gear on the positioning drive frame meshes with the corresponding driven gear ring.

[0020] In one embodiment, the modified mixing chamber is provided with a feed inlet at its upper end, the feed installation pipe is installed on the feed inlet, a storage funnel is provided above the feed installation pipe, a sealing plate is fixedly fitted at the output end of the storage funnel, the sealing plate and the feed installation pipe are slidably engaged, and the storage funnel is used to convey materials into the modified mixing chamber.

[0021] In one embodiment, at least one feed inlet is provided, the feed inlet is arranged along the axial direction of the air inlet, the feed inlet is located above the air inlet, and at least one of the storage funnels is provided with a screening mechanism for screening the material.

[0022] In one embodiment, the screening mechanism includes:

[0023] A material collection connecting funnel is installed on the material storage funnel;

[0024] A screening box, which is installed on the material connecting funnel;

[0025] A vibrating mounting frame is provided, with limit holes at its four corners. Limit rods are provided at the four corners of the screening box. The limit holes and the limit rods are configured to cooperate with each other. A screening screen is fixedly installed inside the vibrating mounting frame.

[0026] The second vibration motor is mounted on the vibration mounting frame.

[0027] In one embodiment, a secondary fine grinding mechanism is installed on one side of the screening mechanism, the secondary fine grinding mechanism comprising:

[0028] The secondary fine grinding tube has a combined feed pipe on one side of the storage funnel, a material screening hole on the side of the screening box, one end of the secondary fine grinding tube is connected to the combined feed pipe, and the other end of the secondary fine grinding tube is connected to the material screening hole.

[0029] The grinding rollers are at least a pair rotatably mounted inside the secondary fine grinding tube, and a linkage gear is fixedly mounted at one end of each grinding roller, with adjacent linkage gears meshing with each other.

[0030] A fine grinding motor is installed on the outer surface of the secondary fine grinding tube, and the output end of the fine grinding motor is fixedly connected to the rotating shaft of any one of the grinding rollers.

[0031] In one embodiment, a crushing mechanism is provided at the upper end of the screening mechanism, the crushing mechanism comprising:

[0032] The crushing combination box has a crushing positioning tube at its lower end and a combination connecting ring installed at the upper end of the screening box. The crushing positioning tube is connected to the combination connecting ring. An input combination pipe is provided at the upper end of the crushing combination box, and a feed funnel is connected to the input combination pipe.

[0033] The material crushing rollers are at least a pair rotatably mounted inside the crushing assembly box. A transmission gear is fixedly mounted at one end of each material crushing roller, and adjacent transmission gears mesh with each other.

[0034] A crushing motor is installed on the outer side of the crushing assembly box, and the output end of the crushing motor is fixedly connected to the rotating shaft of any one of the crushing rollers.

[0035] Compared with the prior art, the advantages of this utility model are as follows: The barite powder modification and activation device for drilling fluid proposed in this utility model can reciprocate under the drive of the distribution drive unit through the distribution component in the distribution mechanism, thereby uniformly distributing the barite powder entering the feed installation pipe into the modification mixing chamber, avoiding local accumulation of barite powder and ensuring that the particles can fully contact the modifier. At the same time, the convection mechanism forms an effective airflow circulation inside the modification mixing chamber through the driving force generated by the convection component, providing driving force and generating a convection effect for the barite powder and modifier distributed in the modification mixing chamber by the distribution mechanism. The combination of the distribution mechanism and the convection mechanism significantly improves the uniform distribution of barite powder in the modifier, not only promoting the dynamic contact between barite powder and modifier, but also further enhancing the interaction between the two, making the modification more thorough and consistent, and greatly improving the modification efficiency and quality of barite powder. Attached Figure Description

[0036] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0037] Figure 1 A schematic diagram of the main structure of the barite powder modification and activation device for drilling fluid provided by this utility model;

[0038] Figure 2 A rear view of the barite powder modification and activation device for drilling fluid provided by this utility model;

[0039] Figure 3A side sectional view of the barite powder modification and activation device for drilling fluid provided by this utility model;

[0040] Figure 4 This is a schematic diagram of the internal structure of the modified mixing chamber in this utility model;

[0041] Figure 5 This is a schematic diagram of the flow guide tube in this utility model;

[0042] Figure 6 This is a schematic diagram of the screening mechanism in this utility model;

[0043] Figure 7 This is a schematic diagram of the material storage funnel part in this utility model;

[0044] Figure 8 This is a schematic diagram of the crushing mechanism in this utility model;

[0045] Figure 9a This is one of the structural schematic diagrams of the bulk material handling mechanism in this utility model;

[0046] Figure 9b This is the second structural schematic diagram of the bulk material handling mechanism in this utility model;

[0047] Figure 10 This is a schematic diagram of the secondary fine grinding tube part in this utility model.

[0048] Figure label:

[0049] in,

[0050] 1-Modified mixing chamber; 101-Output funnel; 102-Output control valve; 103-Air inlet;

[0051] 2-Convection mechanism; 201-Convection fan; 202-Dustproof cloth; 203-Convection pipe;

[0052] 3-Turbulence mechanism; 301-Positioning drive frame; 302-Guide pipe; 303-Turbulence fan; 304-Diffuser; 305-Driven gear ring; 306-Turbulence fan blade; 307-Turbulence motor; 308-Turbulence transmission pipe;

[0053] 4-Infeed installation pipe;

[0054] 5-Bulk material handling mechanism; 501-Moving slide frame; 502-Screen; 503-Bulk material handling motor; 504-Reciprocating turntable; 505-Reciprocating connecting rod; 506-First spring;

[0055] 6-Storage funnel; 601-Sealing plate; 602-Combined feed pipe;

[0056] 7-Screening mechanism; 701-Screening box; 702-Collection connecting funnel; 703-Vertical limit rod; 704-Vibrating mounting frame; 705-Screening screen; 706-Vibrating motor; 707-Combination connecting ring;

[0057] 8-Secondary fine grinding mechanism; 801-Grinding roller; 802-Linkage gear; 803-Fine grinding motor; 804-Secondary fine grinding tube;

[0058] 9-Crushing mechanism; 901-Crushing combination box; 902-Crushing positioning tube; 903-Input combination tube; 904-Crushing roller; 905-Transmission gear; 906-Crushing motor;

[0059] 10 - Feed funnel. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0061] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0062] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0063] This invention provides a device for modifying and activating barite powder for drilling fluid, with the aim of optimizing the mixing process of barite powder and modifier.

[0064] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0065] Please see Figures 1-10As shown, this utility model provides a device for modifying and activating barite powder for drilling fluid. The device includes a modified mixing chamber 1 with an air inlet 103 on its side to facilitate the installation of a subsequent convection mechanism 2. The air inlet 103 communicates with the outside, allowing outside air to be introduced into the modified mixing chamber 1. A feed pipe 4 is provided at the top of the modified mixing chamber 1 to receive the barite powder to be mixed and the modifier. Specifically, there can be one feed pipe 4, through which both the barite powder and the modifier are fed into the modified mixing chamber 1; there can also be two or more feed pipes 4, with the barite powder and the modifier fed into the modified mixing chamber 1 through different feed pipes 4; alternatively, the modifier can be added directly to the modified mixing chamber 1, while the barite powder is only fed into the modified mixing chamber 1 through the feed pipe 4.

[0066] In order to disperse the barite powder into the modified mixing chamber 1, the device also includes a dispersing mechanism 5, which is set inside the feed installation pipe 4. The dispersing mechanism 5 consists of a distributing assembly and a dispersing drive unit. The distributing assembly is set inside the feed installation pipe 4, and the dispersing drive unit drives the distributing assembly to reciprocate through mechanical movement. In this way, the barite powder entering the feed installation pipe 4 is evenly dispersed by the distributing assembly, ensuring that the barite powder can be evenly distributed into the modified mixing chamber 1.

[0067] like Figures 1-3 As shown, to further enhance the interaction between barite powder and modifier, the device also includes a convection mechanism 2. The convection mechanism 2 includes a convection component, which is installed at the air inlet 103 on the side of the modified mixing chamber 1. When the convection component is activated, it generates a directional airflow. This airflow not only provides additional driving force for the barite powder already dispersed by the dispersing mechanism 5, but also promotes airflow within the modified mixing chamber 1, forming an effective convection effect. This provides driving force and convection effect for the barite powder and modifier dispersed by the dispersing mechanism 5 within the modified mixing chamber 1. The combination of the dispersing mechanism 5 and the convection mechanism 2 significantly improves the uniform distribution of barite powder in the modifier, allowing the barite powder to be more fully stirred and mixed in the modifier, significantly improving the consistency and efficiency of the modification reaction, and greatly enhancing the modification efficiency and quality of the barite powder.

[0068] Specifically, the convection assembly includes a convection fan 201, a convection pipe 203 installed in the air inlet 103, the convection fan 201 installed in the convection pipe 203, the adjustable angle of the convection fan 201, thereby adjusting the pushing direction of the convection assembly, and a dustproof cloth 202 installed in the convection pipe 203 to prevent material overflow from the modified mixing chamber 1.

[0069] However, to ensure better air intake at the air inlet 103, it is best not to install the dust cover 202. To prevent material from overflowing from the modified mixing chamber 1, the best approach is to control the material in the modified mixing chamber 1 to not exceed the air inlet 103, or even to keep the material within half the height of the air inlet 103 and the bottom surface of the modified mixing chamber 1. The power of each fan in the control device can be adjusted so that the inward blowing force at the air inlet in the modified mixing chamber 1 that connects to the outside is greater than the gas pressure in the modified mixing chamber 1, thereby reducing the overflow of material from the air inlet 103. The gas in the modified mixing chamber 1 will be discharged through the feed installation pipe 4, forming an upward airflow that provides wind power to the material on the fabric assembly, making the material on and falling from the fabric assembly more dispersed, further improving the dispersion effect of the material, especially barite powder. Of course, a larger dust bag can also be installed outside the air inlet 103 to increase the air intake and meet the gas volume required by the convection fan 201. At the same time, the dust bag will also collect the material overflowing from the air inlet 103. The specific structure and working principle of the dust bag installed at the air inlet 103 are existing technologies and will not be described in detail in this application.

[0070] In one embodiment, the fabric assembly includes a movable slide frame 501, within which a screen 502 is disposed. The screen 502 may be one or more layers, used for screening and uniformly distributing barite powder into the modified mixing chamber 1. A movable chute is provided inside the feed installation pipe 4, and the movable slide frame 501 is disposed in the movable chute. The material distribution drive unit serves as the power source for the movable slide frame 501, driving the movable slide frame 501 to reciprocate horizontally in the movable chute, causing the barite powder in the screen 502 to sway back and forth and fall dispersed through the screen 502, thus avoiding the problem of concentrated falling of barite powder.

[0071] In this embodiment, as Figure 9aAs shown, the bulk material drive unit can be a cam-linkage mechanism. The output end of the cam-linkage mechanism acts on the moving slide frame 501. Specifically, a linkage sliding hole is provided at one end of the moving slide frame 501. The linkage sliding hole is set as an elongated hole. A bulk material motor 503 is installed in the feed mounting pipe 4. A reciprocating turntable 504 is coaxially fixedly installed at the output end of the bulk material motor 503. A reciprocating connecting rod 505 is installed on the lower end face of the reciprocating turntable 504. The reciprocating connecting rod 505 is parallel and offset from the output shaft of the bulk material motor 503, and the width of the linkage sliding hole is greater than 100 mm. The diameter of the reciprocating connecting rod 505 is determined by inserting it into the linkage sliding hole. In this embodiment, a cam-linkage mechanism is used. When the material dispensing motor 503 starts, it drives the reciprocating turntable 504 to rotate, which in turn drives the reciprocating connecting rod 505 to oscillate periodically with the rotation of the turntable. Since the reciprocating connecting rod 505 is inserted into the linkage sliding hole of the moving slide frame 501, this periodic oscillation is converted into the reciprocating linear motion of the moving slide frame 501 along the direction of the moving slide groove, ultimately achieving the screening and dispersion of materials. Assuming that 10 kg of barite powder is dispersed per minute, the moving frequency of the moving slide frame 501 driven by the material dispensing motor 503 is 1-5 times per second, dispersing 0.167 kg of barite powder per second.

[0072] It is also possible that the bulk material drive unit can be a telescopic cylinder. Since it is necessary to realize the rapid reciprocating movement of the moving slide frame 501, the telescopic cylinder needs to be set as a pneumatic cylinder or an electric actuator. The telescopic cylinder is installed in the feed installation pipe 4. The output end of the telescopic cylinder acts on the moving slide frame 501. Through the rapid extension and retraction of the telescopic cylinder, the moving slide frame 501 is driven to reciprocate linearly along the direction of the moving slide groove.

[0073] In another embodiment, such as Figure 9b As shown, the fabric assembly includes a movable slide frame 501, within which a screen 502 is provided. The screen 502 can be one or more layers, used for screening and uniformly distributing barite powder into the modified mixing chamber 1. Multiple first springs 506 connect the movable slide frame 501 to the feed mounting pipe 4. One end of the first spring 506 is fixed to the feed mounting pipe 4, and the other end is fixed to the movable slide frame 501, providing necessary support and elastic recovery force to ensure the stability and consistency of the movable slide frame 501 during movement.

[0074] Furthermore, the bulk material drive unit can be a first vibration motor, which is installed on the movable slide frame 501. The vibration of the first vibration motor drives the movable slide frame 501 to reciprocate within the feed mounting pipe 4, thereby improving the material distribution speed and distribution uniformity.

[0075] It's acceptable. The bulk material drive unit uses a telescopic cylinder, which can be set as a pneumatic cylinder or an electric actuator. The telescopic cylinder drives the moving slide frame 501 to reciprocate. Since the first spring 506 has elasticity and deformation, during the movement of the moving slide frame 501, the first spring 506 will provide support and displacement margin for the moving slide frame 501.

[0076] More preferably, such as Figures 1-5 As shown, the drilling fluid barite powder modification and activation device provided by this utility model also includes a turbulence mechanism 3. By setting the turbulence mechanism 3, the mixing effect of barite powder and modifier can be further optimized.

[0077] Specifically, the turbulence mechanism 3 includes one or more turbulence fans 303. An output funnel 101 is fixedly installed at the lower end of the modified mixing chamber 1. The turbulence fans 303 are installed inside the output end of the output funnel 101. The turbulence mechanism 3 provides a driving force and a disturbance effect to the barite powder and modifier distributed in the modified mixing chamber 1 by the bulk material mechanism 5, so that the barite powder and modifier can be mixed better.

[0078] Furthermore, the turbulence mechanism 3 also includes a positioning drive frame 301 and a guide pipe 302. The guide pipe 302 is located inside the modified mixing chamber 1 and is positioned above the turbulence fan 303. It is best that the two are coaxially arranged, which is beneficial for the turbulence fan 303 to directly introduce the gas driving force into the guide pipe 302. The guide pipe 302 is fixed to the inner wall of the modified mixing chamber 1 by the positioning drive frame 301 to ensure that it can be stably fixed, so that the airflow generated by the turbulence fan 303 can flow along the guide pipe 302, so that the material below the modified mixing chamber 1 can be blown to the top of the guide pipe 302 and mixed with the material scattered by the dispersing mechanism 5. The dispersing mechanism 5, the convection mechanism 2 and the turbulence mechanism 3 can work together to further disperse the material inside the modified mixing chamber 1, so that the material is mixed more evenly in the modified mixing chamber 1.

[0079] An output control valve 102 can be fixedly installed at the output end of the output funnel 101. By controlling the opening and closing of the output control valve 102, the output efficiency and initial working mode of the material in the modified mixing chamber 1 can be controlled. It is best to close the output control valve 102 when the material mixing just begins. As the material in the modified mixing chamber 1 increases, the output control valve 102 is gradually opened and the turbulence mechanism 3 is started. Mixing is carried out when the output control valve 102 is open to ensure the air intake requirements of the turbulence mechanism 3. In this embodiment, the turbulence fan rotates forward to provide thrust into the modified mixing chamber 1, and the turbulence fan rotates backward to provide thrust to the outside of the modified mixing chamber 1. After mixing is completed, the output speed of the material can be controlled by controlling the opening size of the output control valve 102 and the reverse rotation of the turbulence fan.

[0080] Furthermore, the turbulence mechanism 3 also includes a diffuser plate 304, which is fixedly installed on the inner upper surface of the modified mixing chamber 1. The diffuser plate 304 is located above the guide pipe 302, so that the material discharged from the guide pipe 302 can directly act on the diffuser plate 304. In particular, the diffuser plate 304 is set in a conical shape, and the conical tip of the diffuser plate 304 is set towards the guide pipe 302. When the material comes into contact with the material and airflow from the guide pipe 302, the diffuser plate 304 can evenly disperse the material and airflow, forming a wider turbulence area; and combined with the convection effect of the convection mechanism 2, it can maximize the mixing of materials.

[0081] Ideally, the convection mechanism 2 is positioned within the space between the guide pipe 302 and the diffuser plate 304. This allows the convection mechanism 2 to work directly in conjunction with the turbulence mechanism 3, achieving optimal mixing. Furthermore, by adjusting the power of the convection fan 201 and the turbulence fan 303, the airflow intensity and distribution pattern can be adjusted according to material characteristics and process requirements. For example, when processing materials with high viscosity or those prone to agglomeration, the power of the turbulence fan 303 can be appropriately increased to enhance material dispersion; conversely, when a higher overall mixing speed is required, the power of the convection fan 201 can be increased to accelerate material circulation and mixing.

[0082] Furthermore, the turbulence mechanism 3 also includes a driven gear ring 305, a turbulence transmission pipe 308, a turbulence fan blade 306, and a turbulence motor 307. To further improve the material mixing effect between the modified mixing chamber 1 and the guide pipe 302, specifically, a driven gear ring 305 is rotatably engaged on both the upper and / or lower sides of the positioning drive frame 301. Ideally, driven gear rings 305 are provided on both the upper and lower sides of the positioning drive frame 301, and the driven gear rings 305 are positioned on the guide pipe 302. 02 Externally, a turbulence transmission pipe 308 is fixedly installed on the side of the upper and lower driven gear rings 305 away from the positioning drive frame 301, and a turbulence fan blade 306 is fixedly installed on the side of the turbulence transmission pipe 308 away from the positioning drive frame 301. A turbulence power groove is opened on the side of the positioning drive frame 301 near the turbulence transmission pipe 308. A turbulence motor 307 is fixedly installed in the turbulence power groove. A drive gear is fixedly installed at the output end of the turbulence motor 307. The drive gears on the two positioning drive frames 301 mesh with the corresponding driven gear rings 305.

[0083] It is understandable that the power supply line of the turbulence motor 307 is arranged on the positioning drive frame 301, so as to avoid the power supply line being affected by the material inside the modified mixing chamber 1.

[0084] The rotation of the turbulence motor 307 and the meshing of the drive gear and the driven gear ring 305 cause the turbulence transmission pipe 308 to drive the turbulence fan blade 306 to rotate, which can further improve the mixing effect of the materials inside the modified mixing chamber 1.

[0085] Preferably, to improve the material storage capacity in the feed pipe 4, a feed inlet is provided at the upper end of the modified mixing chamber 1, and the feed pipe 4 is installed on the feed inlet. A storage funnel 6 is provided above the feed pipe 4, and a sealing plate 601 is fixedly fitted at the output end of the storage funnel 6. The sealing plate 601 and the feed pipe 4 are slidably engaged. The storage funnel 6 is used to convey materials into the modified mixing chamber 1. The storage funnel 6 can store materials to meet the material flow rate required for actual production. The sealing plate 601 is slidably engaged with the feed pipe 4 to facilitate the replacement and inspection of the dispersing mechanism 5. A sealing element, such as a rubber ring, can be provided between the sealing plate 601 and the feed pipe 4 to prevent material leakage.

[0086] Furthermore, at least one feed inlet is provided, which is arranged along the axial direction of the air inlet 103 and located above the air inlet 103. At least one storage hopper 6 is provided with a screening mechanism 7, which is used to screen the material. The purpose is to make the material entering the bulk material mechanism 5 from the storage hopper 6 finer and to prevent large particles from accumulating in the bulk material mechanism 5.

[0087] Specifically, such as Figures 1-3 , Figure 6 As shown, the drilling fluid barite powder modification and activation device provided in this application also includes a screening mechanism 7. The screening mechanism 7 includes a material collection funnel 702, a screening box 701, a vibrating mounting frame 704, and a second vibration motor. The material collection funnel 702 is installed on the storage funnel 6, and the screening box 701 is installed on the material collection funnel 702. Limiting holes are opened at the four corners of the vibrating mounting frame 704. Limiting rods are set at the four corners inside the screening box 701. The limiting holes and the limiting rods are matched. A second spring can also be set on the limiting rod. The second spring provides support and elasticity to the vibrating mounting frame 704. A screening screen 705 is fixedly installed inside the vibrating mounting frame 704. The vibration is driven by the second vibration motor on the vibrating mounting frame 704 to achieve material screening, so that large particles are isolated above the vibrating mounting frame 704.

[0088] Furthermore, such as Figures 1-3 , Figure 10As shown, to further improve the precision of material conveying, a secondary grinding mechanism 8 is provided on one side of the screening mechanism 7. The secondary grinding mechanism 8 includes a secondary grinding tube 804, a combined feed pipe 602 is provided on one side of the storage hopper 6, and a material screening hole is provided on the side of the screening box 701. One end of the secondary grinding tube 804 is connected to the combined feed pipe 602, and the other end of the secondary grinding tube 804 is connected to the material screening hole. At least one pair of grinding rollers 801 are rotatably installed inside the secondary grinding tube 804. In this embodiment, a pair is used. The grinding roller 801 is designed to be customized according to different material characteristics and grinding requirements, including adjusting parameters such as surface texture and hardness to achieve the best grinding effect. A linkage gear 802 is fixedly installed at one end of the grinding roller 801. Adjacent linkage gears 802 mesh with each other to ensure that all grinding rollers 801 can rotate synchronously. A fine grinding motor 803 is installed on the outer surface of the secondary fine grinding tube 804, and the output end of the fine grinding motor 803 is fixedly connected to the rotating shaft of any grinding roller 801. The oscillating mounting frame 704 is set at an inclination to introduce large particles into the secondary fine grinding tube 804. The fine grinding motor 803 drives the grinding roller 801 to rotate and finely grind the large particles in the secondary fine grinding tube 804. Then, the material flows into the storage funnel 6 through the secondary fine grinding tube 804 and finally enters the dispersing mechanism 5 to disperse the material, making the material falling into the modified mixing chamber 1 more refined.

[0089] Furthermore, in order to achieve a continuous processing procedure for materials from coarse crushing to fine grinding and then to screening, the drilling fluid barite powder modification and activation device provided in this application also includes a crushing mechanism 9, such as... Figures 1-3 , Figure 8 As shown, the crushing mechanism 9 includes a crushing combination box 901. The lower end of the crushing combination box 901 is designed with a crushing positioning tube 902. The upper end of the screening box 701 is equipped with a combination connecting ring 707. The crushing positioning tube 902 is connected to the combination connecting ring 707. The upper end of the crushing combination box 901 is provided with an input combination pipe 903. The input combination pipe 903 is connected to a feed funnel 10. Inside the crushing combination box 901, at least one pair of crushing rollers 904 are rotatably installed. One end of the crushing roller 904 is fixedly installed with a transmission gear 905. Adjacent transmission gears 905 mesh with each other. Furthermore, a crushing motor 906 is installed on the outer surface of the crushing combination box 901. The output end of the crushing motor 906 is fixedly connected to the rotating shaft of any crushing roller 904. The crushing roller 904 will also rotate synchronously when driven by the crushing motor 906, thereby crushing the material.

[0090] The drilling fluid barite powder modification and activation device provided in this application involves the material being initially crushed by the crushing mechanism 9 to ensure that the particle size is suitable for subsequent processing. Then, the material that meets the requirements is screened by the screening mechanism 7 and falls into the dispersing mechanism 5. The flash powder mechanism screens out the excessively large material particles to the secondary fine grinding mechanism 8. The secondary fine grinding mechanism 8 further refines the larger material particles and ensures uniform particle size. Subsequently, qualified barite powder and modifier are fed together or separately into the dispersing mechanism 5 through the feed pipe 4. Under the action of the dispersing mechanism 5, they are evenly dispersed and enter the modification mixing chamber 1. In the modification mixing chamber 1, the material evenly dispersed by the dispersing mechanism 5 is fully mixed through the synergistic action of the convection mechanism 2 and the turbulence mechanism 3, thereby improving the modification effect. Specifically, the directional airflow generated by the convection mechanism 2 not only promotes the dispersion of the material but also enhances the internal airflow, forming an effective convection effect. The turbulence mechanism 3 further optimizes the mixing effect of the material and the modifier through the design of the turbulence fan 303, the guide pipe 302, and the diffuser plate 304, so that the final product has higher modification quality and consistency.

[0091] Although the present invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for modifying and activating barite powder for drilling fluid, characterized in that, include: A modified mixing chamber, wherein an air inlet is provided on the side of the modified mixing chamber and a feed installation pipe is provided at the upper end of the modified mixing chamber; The material distribution mechanism includes a material distribution assembly and a material distribution drive unit. The material distribution assembly is disposed inside the feeding installation pipe, and the material distribution drive unit is installed inside the feeding installation pipe. The material distribution drive unit can operably drive the material distribution assembly to reciprocate. The convection mechanism includes a convection component installed in the air inlet. The convection component is used to provide a driving force and generate a convection effect for the barite powder and modifier distributed in the modified mixing chamber by the bulk material mechanism.

2. The device for modifying and activating barite powder for drilling fluid according to claim 1, characterized in that, The fabric assembly includes a movable slide frame, a screen is provided inside the movable slide frame, a movable chute is opened inside the feed mounting pipe, the movable slide frame is disposed in the movable chute, and the bulk material driving unit drives the movable slide frame to reciprocate in the movable chute.

3. The device for modifying and activating barite powder for drilling fluid according to claim 1 or 2, characterized in that, The device also includes a turbulence mechanism, which includes a turbulence fan. An output funnel is fixedly installed at the lower end of the modified mixing chamber. The turbulence fan is installed inside the output end of the output funnel. The turbulence mechanism is used to provide a driving force and generate a disturbance effect on the barite powder and modifier distributed by the bulk material mechanism in the modified mixing chamber.

4. The device for modifying and activating barite powder for drilling fluid according to claim 3, characterized in that, The turbulence mechanism includes a positioning drive frame, a guide pipe, and a diffuser plate. The guide pipe is disposed inside the modified mixing chamber and is located above the turbulence fan. The guide pipe is fixedly connected to the inner wall of the modified mixing chamber through the positioning drive frame. The diffuser plate is fixedly installed on the inner upper surface of the modified mixing chamber and is located above the guide pipe.

5. The device for modifying and activating barite powder for drilling fluid according to claim 4, characterized in that, The turbulence mechanism also includes: The driven gear ring is rotatably engaged on the upper and / or lower sides of the positioning drive frame; A turbulence transmission tube is fixedly installed on the side of the driven gear ring away from the positioning drive frame; A turbulence fan blade is fixedly disposed on the side of the turbulence transmission tube away from the positioning drive frame; The positioning drive frame has a turbulence power groove on the side near the turbulence transmission tube. The turbulence motor is fixedly installed in the turbulence power groove. A drive gear is fixedly installed at the output end of the turbulence motor. The drive gear on the positioning drive frame meshes with the corresponding driven gear ring.

6. The device for modifying and activating barite powder for drilling fluid according to claim 1, characterized in that, The modified mixing chamber is provided with a feed inlet at its upper end, and the feed installation pipe is installed on the feed inlet. A storage funnel is provided above the feed installation pipe. A sealing plate is fixedly fitted at the output end of the storage funnel. The sealing plate and the feed installation pipe are slidably engaged with each other. The storage funnel is used to convey materials into the modified mixing chamber.

7. The device for modifying and activating barite powder for drilling fluid according to claim 6, characterized in that, At least one feed inlet is provided, the feed inlet is arranged along the axial direction of the air inlet, the feed inlet is located above the air inlet, and at least one of the storage hoppers is provided with a screening mechanism for screening the material.

8. The device for modifying and activating barite powder for drilling fluid according to claim 7, characterized in that, The screening mechanism includes: A material collection connecting funnel, which is installed on the material storage funnel; A screening box, which is installed on the material connecting funnel; A vibrating mounting frame is provided, with limit holes at its four corners. Limit rods are provided at the four corners of the screening box. The limit holes and the limit rods are configured to cooperate with each other. A screening screen is fixedly installed inside the vibrating mounting frame. The second vibration motor is mounted on the vibration mounting frame.

9. The device for modifying and activating barite powder for drilling fluid according to claim 8, characterized in that, A secondary fine grinding mechanism is installed on one side of the screening mechanism, and the secondary fine grinding mechanism includes: The secondary fine grinding tube has a combined feed pipe on one side of the storage funnel, a material screening hole on the side of the screening box, one end of the secondary fine grinding tube is connected to the combined feed pipe, and the other end of the secondary fine grinding tube is connected to the material screening hole. The grinding rollers are at least a pair rotatably mounted inside the secondary fine grinding tube, and a linkage gear is fixedly mounted at one end of each grinding roller, with adjacent linkage gears meshing with each other. A fine grinding motor is installed on the outer surface of the secondary fine grinding tube, and the output end of the fine grinding motor is fixedly connected to the rotating shaft of any one of the grinding rollers.

10. The device for modifying and activating barite powder for drilling fluid according to claim 8, characterized in that, The upper end of the screening mechanism is provided with a crushing mechanism, which includes: The crushing combination box has a crushing positioning tube at its lower end and a combination connecting ring installed at the upper end of the screening box. The crushing positioning tube is connected to the combination connecting ring. An input combination pipe is provided at the upper end of the crushing combination box, and a feed funnel is connected to the input combination pipe. The material crushing rollers are at least a pair rotatably mounted inside the crushing assembly box. A transmission gear is fixedly mounted at one end of each material crushing roller, and adjacent transmission gears mesh with each other. A crushing motor is installed on the outer side of the crushing assembly box, and the output end of the crushing motor is fixedly connected to the rotating shaft of any one of the crushing rollers.

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