A full-automatic on-line continuous mixing equipment for dry powder thickening agent
Patent Information
- Application Number
- CN202522488754.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-24
AI Technical Summary
然而，在干粉稠化剂的生产过程中，传统的全自动在线连续混配设备在清洁环节暴露出诸多问题；当设备完成混配任务后进行清洁时，大多数采用人工清洗和简单喷淋清洗，这两种常见方式常常出现清洁不彻底的情况；设备内部存在一些难以触及的死角区域，比如混合缸的边角部位、缸盖与缸体的连接处、搅拌叶片的表面等，这些地方极易残留干粉稠化剂；
通过驱动组件和清洁环的设计，在清洁作业时，清洁环能沿混合缸内壁做圆周运动，同时电动推杆带动清洁环上下移动，使高压水射流能够覆盖混合缸的整个内壁、搅拌叶片表面及缸体边角等所有死角区域，确保设备内部得到全面、彻底的清洁，有效避免了残留物对后续混配过程的影响；
Smart Images
Figure CN224854160U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry powder thickener mixing technology, and in particular to a fully automatic online continuous mixing equipment for dry powder thickener. Background Technology
[0002] Dry powder thickeners, as a key chemical raw material, play an indispensable role in many industries such as oil extraction, building materials, and detergent production. In the field of oil extraction, they can effectively adjust the viscosity of fracturing fluids, ensure the smooth progress of fracturing operations, and improve the efficiency of oil and gas extraction. However, in the production process of dry powder thickener, traditional fully automatic online continuous mixing equipment has exposed many problems in the cleaning process. When cleaning the equipment after completing the mixing task, most of them use manual cleaning and simple spray cleaning. These two common methods often result in incomplete cleaning. There are some hard-to-reach dead areas inside the equipment, such as the corners of the mixing cylinder, the connection between the cylinder cover and the cylinder body, and the surface of the stirring blades. Dry powder thickener is very likely to remain in these places. These residues that are not completely removed will have a serious impact on the subsequent mixing process; they will mix into the new mother fluid, causing deviations in the mother fluid concentration. If the concentration is inaccurate, the fracturing fluid may not be able to effectively open and maintain formation fractures, reduce proppant carrying capacity, and thus affect the seepage channels of oil and gas, leading to a decrease in oil and gas production. Therefore, it is necessary to provide a new fully automated online continuous mixing equipment for dry powder thickeners to solve the above-mentioned technical problems. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a fully automatic online continuous mixing equipment for dry powder thickener.
[0004] The fully automatic online continuous mixing equipment for dry powder thickener provided by this utility model includes: a base, a cylinder cover, a cleaning ring, a drive assembly, and an arc-shaped cover plate. A liquid storage tank, a dry powder bin, and a mixing cylinder are installed on the top of the base. A stirring assembly is installed inside the mixing cylinder. A cylinder cover is installed on the top of the mixing cylinder. A cleaning ring is installed inside the cylinder cover. A drive assembly is installed between the mixing cylinder and the cleaning ring. The drive assembly drives the cleaning ring to move for cleaning the inside of the mixing cylinder. Arc-shaped cover plates are installed at equal intervals around the bottom of the cylinder cover.
[0005] Preferably, the drive assembly includes: a rotating block, a motor, and a gear ring. The rotating block is rotatably connected inside the cylinder head, and a gear ring is fitted on the outer wall of the top of the rotating block. A mounting bracket is fixedly connected to the top of the base, and a motor is fixedly connected to the top of the mounting bracket. A gear is fixedly connected to the output end of the motor, and the gear meshes with the gear ring.
[0006] Preferably, an electric push rod is fixedly connected to the side wall of the mounting bracket, and its output end is fixedly connected to a conversion head coaxial with the rotating block through a connecting plate. A three-way pipe is rotatably connected to the bottom of the conversion head, and a guide pipe is fixedly connected to the end of each three-way pipe. The bottom end of each guide pipe passes through the rotating block and is fixedly connected to the cleaning ring. The top end of each guide pipe is connected to the three-way pipe, and the bottom end is connected to the cleaning ring.
[0007] Preferably, the outer wall of the cleaning ring is fitted with an annular baffle, the top of the annular baffle is provided with a circular hole corresponding to the guide tube, and all three guide tubes are placed inside the corresponding circular hole. The outer wall of the guide tube near the cleaning ring is provided with a friction pad, and in the initial state, the friction pad is placed inside the circular hole at the top of the annular baffle.
[0008] Preferably, a force-bearing block is fixedly connected to the top center of each arc-shaped cover plate, and a mating groove corresponding to the arc-shaped cover plate is equidistantly opened around the inner circumference of the cylinder head. A guide rod is fixedly connected to the side wall of each force-bearing block, and the guide rod is placed in the corresponding mating groove. A spring is fixedly connected to the other end of each guide rod, and the other end of each spring is fixedly connected to the inner wall of the corresponding mating groove.
[0009] Preferably, a storage tank for storing cleaning fluid is fixedly connected to the top of the base, and a high-pressure water pump is fixedly connected to the top of the base. Its input end is connected to the storage tank, and its output end is connected to a hose. The other end of the hose is connected to the side wall of the adapter.
[0010] Compared with related technologies, the fully automatic online continuous mixing equipment for dry powder thickeners provided by this utility model has the following advantages: Through the design of the drive components and cleaning ring, the cleaning ring can move in a circular motion along the inner wall of the mixing cylinder during cleaning operations. At the same time, the electric push rod drives the cleaning ring to move up and down, so that the high-pressure water jet can cover the entire inner wall of the mixing cylinder, the surface of the stirring blades, and all dead corners such as the edges and corners of the cylinder, ensuring that the inside of the equipment is thoroughly cleaned and effectively avoiding the impact of residues on the subsequent mixing process. The efficient cleaning function ensures that the inside of the equipment is clean and free of residue before each mixing, so that the solvent and dry powder added each time can be accurately mixed according to the preset parameters to form a dry powder thickener product with uniform concentration. This effectively avoids the problem of inaccurate concentration caused by residues and ensures the stability of the mixing quality. The entire cleaning process is highly automated; the process requires minimal human intervention, greatly improving cleaning efficiency and reducing errors and incompleteness that may result from manual operation. Attached Figure Description
[0011] Figure 1 A schematic diagram of the fully automatic online continuous mixing equipment for dry powder thickener provided by this utility model; Figure 2for Figure 1 The diagram shows the structural features of the base side. Figure 3 for Figure 1 The diagram shows a cross-sectional view of the mixing cylinder. Figure 4 for Figure 3 The diagram shows the structure at point A. Figure 5 for Figure 3 The diagram shown is a structural schematic of the converter head; Figure 6 for Figure 5 The diagram shows the structure at point B.
[0012] The following are labeled in the diagram: 1. Base; 101. Mounting bracket; 2. Liquid storage tank; 3. Dry powder hopper; 4. Mixing cylinder; 5. Stirring assembly; 6. Cylinder cover; 7. Cleaning ring; 8. Arc-shaped cover plate; 9. Rotating block; 10. Motor; 11. Gear ring; 12. Gear; 13. Electric push rod; 14. Converter head; 15. T-connector; 16. Annular baffle; 17. Force-bearing block; 18. Guide rod; 19. Spring; 20. Storage box; 21. High-pressure water pump. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0014] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0015] Please see Figures 1 to 6 An automated online continuous mixing device for dry powder thickeners is disclosed. The device comprises a base 1, a cylinder cover 6, a cleaning ring 7, a drive assembly, and an arc-shaped cover plate 8. A liquid storage tank 2, a dry powder bin 3, and a mixing cylinder 4 are installed on the top of the base 1. A stirring assembly 5 is installed inside the mixing cylinder 4. A cylinder cover 6 is installed on the top of the mixing cylinder 4. A cleaning ring 7 is installed inside the cylinder cover 6. A drive assembly is installed between the mixing cylinder 4 and the cleaning ring 7. The drive assembly drives the cleaning ring 7 to move for cleaning the inside of the mixing cylinder 4. Arc-shaped cover plates 8 are installed at equal intervals around the bottom of the cylinder cover 6.
[0016] The drive assembly includes a rotating block 9, a motor 10, and a gear ring 11. The rotating block 9 is rotatably connected inside the cylinder head 6. The gear ring 11 is fitted on the outer wall of the top of the rotating block 9. The top of the base 1 is fixedly connected to a mounting bracket 101. The top of the mounting bracket 101 is fixedly connected to a motor 10, and a gear 12 is fixedly connected to its output end. The gear 12 meshes with the gear ring 11.
[0017] An electric push rod 13 is fixedly connected to the side wall of the mounting bracket 101. Its output end is fixedly connected to a converter head 14 coaxial with the rotating block 9 via a connecting plate. A three-way pipe 15 is rotatably connected to the bottom of the converter head 14. A guide pipe is fixedly connected to each end of the three-way pipe 15. The bottom end of the guide pipe passes through the rotating block 9 and is fixedly connected to the cleaning ring 7. The top end of the guide pipe is connected to the three-way pipe 15, and the bottom end is connected to the cleaning ring 7.
[0018] The outer wall of the cleaning ring 7 is fitted with an annular baffle 16. The top of the annular baffle 16 is provided with a circular hole corresponding to the guide tube, and the three guide tubes are all placed inside the corresponding circular hole. The outer wall of the guide tube near the cleaning ring 7 is provided with a friction pad, and in the initial state, the friction pads are all placed inside the circular hole at the top of the annular baffle 16.
[0019] Each of the arc-shaped cover plates 8 has a force-bearing block 17 fixedly connected to the top center position. The cylinder head 6 has equidistant mating grooves corresponding to the arc-shaped cover plates 8 on its inner circumference. Each of the force-bearing blocks 17 has a guide rod 18 fixedly connected to its side wall, and each guide rod 18 is placed in the corresponding mating groove. Each of the other ends of the guide rod 18 has a spring 19 fixedly connected to it, and each of the other ends of the spring 19 is fixedly connected to the inner wall of the corresponding mating groove.
[0020] A storage tank 20 for storing cleaning fluid is fixedly connected to the top of the base 1. A high-pressure water pump 21 is fixedly connected to the top of the base 1. Its input end is connected to the storage tank 20, and its output end is connected to a hose. The other end of the hose is connected to the side wall of the adapter 14.
[0021] It should be noted that: the guide tube is made of stainless steel, and while guiding the flow, it can also drive the cleaning ring 7 to rotate with the rotating block 9; the side wall of the cleaning ring 7 is provided with nozzles at equal intervals around its circumference. The inner sidewalls of the arc-shaped cover plate 8 are in contact with the bottom outer wall of the rotating block 9. The rotating block 9 has an annular groove axially formed around its middle circumference. The inner wall of the top of the annular baffle 16 is in contact with the inner wall of the annular groove. When the guide tube pushes the cleaning ring 7 downward, the friction pad set near the end of the guide tube close to the cleaning ring 7 drives the annular baffle 16 to move downward synchronously. Its function is: after the cleaning ring 7 squeezes the force block 17, the annular cover plate moves into the cylinder head 6 and compresses the spring 19. Then, the annular baffle 16 moves to the bottom of the annular groove, blocking the arc-shaped cover plate 8 in the mating groove inside the cylinder head 6, preventing it from resetting under the elastic force of the spring 19, and hindering the guide tube from rotating with the rotating block 9.
[0022] The working principle of the fully automatic online continuous mixing equipment for dry powder thickener provided by this utility model is as follows: The mixing process is the core production step of the equipment. By precisely controlling the amount of solvent and dry powder fed and the mixing process, a dry powder thickener product with uniform concentration is ensured. The specific steps are as follows: After starting the equipment, the operator presets parameters such as the amount of solvent and dry powder fed, the stirring speed, and the stirring time through the control system according to production needs. After receiving the start command, the quantitative conveying device at the bottom of the storage tank 2 starts according to the preset parameters, accurately injecting the specified volume of solvent into the mixing cylinder 4. During the solvent injection process, the system monitors the flow rate data in real time to ensure that the feeding error is controlled within the production requirements. When the solvent reaches the preset amount, the conveying device automatically shuts off, completing the solvent feeding. After the solvent is added, the stirring component 5 inside the mixing cylinder 4 immediately starts. The mixing cylinder 4 starts rotating at a preset speed, creating a stable vortex in the solvent inside the cylinder, providing favorable conditions for the dispersion of dry powder. Subsequently, the metering feeding mechanism at the bottom of the dry powder hopper 3 is activated, uniformly feeding a preset weight of dry powder thickener raw material into the vortex area of the mixing cylinder 4, ensuring that the dry powder quickly integrates into the solvent and avoiding agglomeration. After the dry powder is fed, the stirring component 5 continues to operate at a preset speed, using the shearing and mixing action of the stirring blades to ensure that the dry powder and solvent come into full contact and undergo a dissolution reaction. During the stirring process, the arc-shaped cover plate 8 at the top of the mixing cylinder 4 remains closed to prevent material splashing and the entry of external impurities. When the preset stirring time is reached, the dry powder and solvent are completely mixed to form a uniform dry powder thickener product, and the stirring component 5 stops operating. The discharge valve at the bottom of mixing cylinder 4 opens automatically, and the finished dry powder thickener is discharged under gravity and directly transported to subsequent production stages or storage equipment; after the finished product is discharged, the discharge valve closes, and the system can choose to enter the next round of mixing operation according to the production plan; if continuous production is required, the equipment will repeat the above steps to achieve fully automatic online continuous mixing; When a single batch of production is completed, the cleaning operation process is initiated. The specific steps are as follows: The electric push rod 13 fixed to the side wall of the mounting bracket 101 is activated, and its output end pushes the conversion head 14 to move downward in the vertical direction through the connecting plate; Since the bottom of the conversion head 14 is rotatably connected to the three-way pipe 15, and the guide pipe at the end of the three-way pipe 15 is fixedly connected to the cleaning ring 7, and the bottom end of the guide pipe passes through the rotating block 9, the three-way pipe 15 and the guide pipe move downward synchronously with the conversion head 14, thereby driving the cleaning ring 7 to move downward from inside the cylinder head 6; During the downward movement of the cleaning ring 7, its bottom edge first contacts the force block 17 on the top of the arc-shaped cover plate 8 and exerts a downward squeezing force on the force block 17; the guide rod 18 fixed on the side wall of the force block 17 slides axially along the mating groove inside the cylinder head 6, while compressing the spring 19 at the end of the guide rod 18. The arc-shaped cover plate 8 retracts into the mating groove in sync with the force block 17, gradually disengaging from the sealing position at the top of the mixing cylinder 4, thus creating vertical space for the downward movement of the cleaning ring 7. Meanwhile, the annular baffle 16, which is fitted onto the outer wall of the cleaning ring 7, has a top circular hole that mates with the guide tube, and the friction pad at the end of the guide tube near the cleaning ring 7 is initially placed inside the circular hole. As the guide tube moves downward, the friction between the friction pad and the inner wall of the circular hole causes the annular baffle 16 to move downward synchronously. When the top inner wall of the annular baffle 16 contacts the bottom end of the rotating block 9, the rotating block 9 axially limits the annular baffle 16, stopping it from moving downward with the guide tube. At this time, the bottom of the annular baffle 16 covers the opening of the mating groove, locking the arc-shaped cover plate 8 in the mating groove, preventing the arc-shaped cover plate 8 from resetting after the spring 19 rebounds after the cleaning ring 7 is disengaged, thus obstructing the rotation path of the guide tube and the cleaning ring 7. The electric push rod 13 continues to push until the cleaning ring 7 is completely removed from the inside of the cylinder head 6 and reaches the upper area of the mixing cylinder 4. At this time, the nozzle of the cleaning ring 7 is facing the inner wall of the mixing cylinder 4, and the electric push rod 13 stops moving down, completing the posture adjustment before cleaning. After the cleaning ring 7 is removed from the inside of the cylinder cover 6, the high-pressure water pump 21 fixed on the top of the base 1 is immediately started. Its input end draws cleaning fluid from the storage tank 20, and its output end delivers the high-pressure cleaning fluid to the inside of the converter head 14 through a hose. The cleaning fluid is diverted to the three-way pipe 15 through the converter head 14, and then evenly delivered to the internal chamber of the cleaning ring 7 through three guide pipes. Finally, it is sprayed out at high speed from the nozzles that are equidistantly opened around the circumference of the cleaning ring 7, forming a high-pressure water flow that impacts the inner wall of the mixing cylinder 4 and the surface of the stirring component 5. At the same time, the motor 10 on the top of the mounting bracket 101 starts, and its output end drives the gear 12 to rotate at a constant speed. Since the gear 12 meshes with the toothed ring 11 sleeved on the outer wall of the top of the rotating block 9, the rotational power of the gear 12 is transmitted to the toothed ring 11, which drives the rotating block 9 to rotate around its own axis. The guide tube inside the rotating block 9 rotates synchronously with the rotating block 9, which in turn drives the cleaning ring 7 at the bottom to make a circular motion along the inner wall of the mixing cylinder 4, so that the high-pressure water jet covers the entire inner wall of the mixing cylinder 4, the surface of the stirring blades, and dead corners such as the edges and corners of the cylinder. During rotation, the rotating connection structure between the converter head 14 and the three-way pipe 15 ensures that the delivery of cleaning fluid is not affected by the rotation of the cleaning ring 7; the locking action of the annular baffle 16 keeps the arc-shaped cover plate 8 fixed, avoiding interference with the rotating parts; at the same time, the electric push rod 13 is restarted, driving the cleaning ring 7 to move up and down inside the mixing cylinder 4 through the guide pipe, ensuring that stubborn residues are completely removed. When the cleaning time reaches the preset duration, the high-pressure water pump 21 first stops running and cuts off the supply of cleaning fluid; then the motor 10 stops rotating, and the gear 12, gear ring 11, rotating block 9 and cleaning ring 7 stop rotating synchronously, and the cleaning ring 7 returns to the initial rotating position. The electric push rod 13 retracts, driving the conversion head 14, the three-way pipe 15, and the guide pipe upwards via the connecting plate. The cleaning ring 7 moves upwards synchronously with the guide pipe. When the friction pad on the outer wall of the bottom end of the guide pipe contacts the round hole at the top of the annular baffle 16, the friction force drives the annular baffle 16 to move upwards against gravity, resetting synchronously with the cleaning ring 7. As the cleaning ring 7 moves upwards and disengages from the force block 17, the compressed spring 19 gradually releases its elasticity, pushing the guide rod 18 to slide outwards along the mating groove, causing the force block 17 and the arc-shaped cover plate 8 to reset. The bottom of the arc-shaped cover plate 8 re-fits the top of the mixing cylinder 4, achieving a seal in the mixing cylinder 4. When the cleaning ring 7 completely returns to the inside of the cylinder cover 6, the annular baffle 16 resets to its initial position, the electric push rod 13 stops retracting, the entire cleaning process ends, and the equipment returns to standby mode, ready to start the next round of mixing operations at any time.
[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A fully automatic online continuous mixing equipment for dry powder thickeners, characterized in that, include: The base (1) has a liquid storage tank (2), a dry powder bin (3) and a mixing cylinder (4) installed on its top. The mixing cylinder (4) has a stirring assembly (5) installed inside. Cylinder head (6), the top of the mixing cylinder (4) is fitted with cylinder head (6); Cleaning ring (7) is installed inside the cylinder head (6); A drive assembly is installed between the mixing cylinder (4) and the cleaning ring (7). The drive assembly drives the cleaning ring (7) to move for cleaning the interior of the mixing cylinder (4). Arc-shaped cover plate (8) is installed at equal intervals around the bottom of the cylinder head (6).
2. The fully automatic online continuous mixing equipment for dry powder thickener according to claim 1, characterized in that, The drive assembly includes a rotating block (9), a motor (10), and a gear ring (11). The rotating block (9) is rotatably connected inside the cylinder head (6). The gear ring (11) is fitted on the outer wall of the top of the rotating block (9). The mounting bracket (101) is fixedly connected to the top of the base (1). The motor (10) is fixedly connected to the top of the mounting bracket (101). The output end of the motor (10) is fixedly connected to a gear (12), and the gear (12) meshes with the gear ring (11).
3. The fully automatic online continuous mixing equipment for dry powder thickener according to claim 2, characterized in that, An electric push rod (13) is fixedly connected to the side wall of the mounting bracket (101). Its output end is fixedly connected to a converter head (14) coaxial with the rotating block (9) through a connecting plate. A three-way pipe (15) is rotatably connected to the bottom of the converter head (14). A guide pipe is fixedly connected to the end of the three-way pipe (15). The bottom end of the guide pipe passes through the rotating block (9) and is fixedly connected to the cleaning ring (7). The top end of the guide pipe is connected to the three-way pipe (15), and the bottom end is connected to the cleaning ring (7).
4. The fully automatic online continuous mixing equipment for dry powder thickener according to claim 3, characterized in that, The outer wall of the cleaning ring (7) is fitted with an annular baffle (16). The top of the annular baffle (16) is provided with a circular hole corresponding to the guide tube, and the three guide tubes are all placed inside the corresponding circular hole. The outer wall of the guide tube near the cleaning ring (7) is provided with a friction pad, and in the initial state, the friction pad is placed inside the circular hole at the top of the annular baffle (16).
5. The fully automatic online continuous mixing equipment for dry powder thickener according to claim 1, characterized in that, A force-bearing block (17) is fixedly connected to the top center of the arc-shaped cover plate (8). The cylinder head (6) has equidistant mating grooves corresponding to the arc-shaped cover plate (8) around its inner circumference. A guide rod (18) is fixedly connected to the side wall of the force-bearing block (17), and the guide rod (18) is placed in the corresponding mating groove. A spring (19) is fixedly connected to the other end of the guide rod (18), and the other end of the spring (19) is fixedly connected to the inner wall of the corresponding mating groove.
6. The fully automatic online continuous mixing equipment for dry powder thickener according to claim 3, characterized in that, A storage tank (20) for storing cleaning fluid is fixedly connected to the top of the base (1). A high-pressure water pump (21) is fixedly connected to the top of the base (1). Its input end is connected to the storage tank (20), and its output end is connected to a hose. The other end of the hose is connected to the side wall of the adapter (14).