Modified calcium carbonate production filtering and impurity removing equipment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOYANG HUALU CATALYTIC TECH R & D CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-08-07
AI Technical Summary
[0002]在改性碳酸钙生产过程中，过滤除杂是保障产品质量的核心环节，但传统过滤设备因技术架构单一存在显著缺陷：其单级过滤结构易导致滤布快速堵塞，需频繁停机清理，且料液分布不均匀引发局部过载，加剧杂质沉积；固定式清洁刷因刚性驱动无法适应过滤面形变，清洁力度不可调导致残留沉积物持续降低滤布通透性；机械式密封阀门依赖物理接触启闭，长期运行后磨损严重且缺乏状态监测手段，存在溶液倒灌风险；自动化控制依赖人工干预，无法实时感知液位、压差、流量等关键参数，难以形成多参数融合的闭环控制链路，设备运行稳定性差
[0010]This utility model provides a filtration and impurity removal device for modified calcium carbonate production. It offers the following advantages: This filtration and impurity removal device for modified calcium carbonate production employs a multi-stage filtration unit constructed with partition plates, combined with an optimized flow field design using inclined trapezoidal blocks and triangular guide blocks to achieve uniform material-liquid distribution and efficient solid-liquid separation; it integrates an electromagnetically driven flexible cleaning system, which drives the cleaning components to move laterally via a horizontal screw module, utilizing the principle of electromagnetic repulsion to achieve flexible contact between the cleaning roller brush and the filter surface. Combined with a compression spring to dynamically adjust the contact pressure and a telescopic universal joint to transmit torque, it effectively removes deposits while avoiding damage to the filter cloth; the sealer uses a U-shaped electromagnet and a magnet-controlled flip design, combined with a U-shaped rubber ring to achieve a low-leakage seal, and an infrared sensor to monitor the flip plate status in real time; the equipment is equipped with multiple types of sensors, including ultrasonic level sensors, differential pressure sensors, and flow sensors, and is controlled by a PLC control system to achieve full-process automatic control—abnormal liquid level triggers feed protection, abnormal differential pressure or reduced flow automatically starts the cleaning program, and a capacitive level switch prevents backflow, forming a multi-parameter fusion closed-loop control link.
Smart Images
Figure CN224598870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of modified calcium carbonate production technology, specifically to a filtration and impurity removal device for modified calcium carbonate production. Background Technology
[0002] In the production of modified calcium carbonate, filtration and impurity removal are core steps to ensure product quality. However, traditional filtration equipment suffers from significant drawbacks due to its simple technical architecture: its single-stage filtration structure easily leads to rapid clogging of the filter cloth, requiring frequent shutdowns for cleaning, and uneven distribution of the liquid material causes local overload, exacerbating impurity deposition; fixed cleaning brushes, due to their rigid drive, cannot adapt to the deformation of the filter surface, and the unadjustable cleaning intensity leads to residual deposits continuously reducing the permeability of the filter cloth; mechanical sealing valves rely on physical contact for opening and closing, suffer severe wear after long-term operation, lack status monitoring methods, and pose a risk of solution backflow; automated control relies on manual intervention, cannot perceive key parameters such as liquid level, differential pressure, and flow rate in real time, and is difficult to form a closed-loop control link with multi-parameter fusion, resulting in poor equipment operational stability. Although there are improvement solutions in existing technologies such as multi-stage filtration or adding stirring devices, none of them have overcome the technical bottlenecks: multi-stage filtration lacks a uniform liquid distribution design, resulting in chaotic flow fields between stages; the cleaning system cannot achieve flexible contact and pressure adaptive adjustment; the sealing structure does not integrate low-leakage design and status feedback; and the sensing system has limited functionality and does not form an intelligent control link. In view of this, in-depth research was conducted to address the above problems, leading to this case. Utility Model Content
[0003] To achieve the above objectives, this utility model provides the following technical solution: a filtration and impurity removal device for modified calcium carbonate production, comprising a filter box, wherein multiple partition plates are installed inside the filter box, the partition plates are evenly installed inside the filter box, inclined trapezoidal blocks are installed inside the partition plates, a pair of triangular guide blocks are installed between the partition plates and the inclined trapezoidal blocks, a pair of discharge pipes are installed on the side wall of the filter box, the discharge pipes have a serrated cross-section, multiple seals are installed on the discharge pipes, polypropylene filter cloth is installed on the partition plates, multiple downward drainage holes are opened on the partition plates, the multiple downward drainage holes are located at the bottom end of the polypropylene filter cloth, downward drainage pipes are installed on the partition plates, the downward drainage pipes are fitted onto the multiple downward drainage holes, a cleaner is installed on the multiple partition plates and the filter box, the cleaner includes a pair of horizontal cleaning screw modules, the pair of horizontal cleaning screw modules are installed parallel to each other at the bottom end of the partition plates, and a cleaning device is installed on the moving end of the pair of horizontal cleaning screw modules. The device is equipped with a horizontal movement limiting block, on which a horizontal adjustment groove is formed. The horizontal adjustment groove is convex in shape. A convex telescopic block is installed inside the horizontal adjustment groove. A horizontal annular electromagnet is installed inside the horizontal adjustment groove. A horizontal annular magnet is installed on the convex telescopic block. A horizontal bearing is installed on the convex telescopic block. A horizontal limiting shaft is installed inside the horizontal adjustment groove. The horizontal limiting shaft is movably inserted into the inner side of the horizontal bearing. A sleeve spring is installed on the horizontal limiting shaft. A serrated support block is installed on the telescopic block. Multiple lifting and squeezing grooves are opened on the convex telescopic block. Lifting and squeezing blocks are installed on the inner side of the lifting and squeezing grooves. A squeezing spring is installed on the lifting and squeezing blocks. Lifting and squeezing roller brushes are installed on the pairs of lifting and squeezing blocks. The lifting and squeezing roller brushes are inserted into the pairs of lifting and squeezing blocks through bearings. Multiple lifting and squeezing roller brushes are connected to each other through telescopic universal joints. A cleaning drive motor is installed on the lifting and squeezing blocks. The drive end of the cleaning drive motor is connected to the lifting and squeezing roller brush.
[0004] Preferably, the sealer includes a sealing limiting block, which is installed inside the discharge pipe. The sealing limiting block has a horn-shaped discharge hole. A pair of limiting flip blocks are installed on the sealing limiting block. A flip shaft is installed on the pair of limiting flip blocks. A flip plate is installed on the flip shaft. A U-shaped rubber ring is installed on the flip plate. A U-shaped electromagnet is installed on the sealing limiting block. A U-shaped magnet is installed on the flip plate.
[0005] Preferably, a stirrer is installed on the side wall of the filter box. The stirrer includes multiple stirring shafts, which are respectively inserted into the filter box. Multiple stirring discs are installed on the stirring shafts. The stirring discs are inserted into the side wall of the filter box through bearings. Stirring blades are installed on the stirring discs. A stirring drive motor is installed on the stirring shaft.
[0006] Preferably, a liquid level monitor is installed on the filter box, the liquid level monitor including an ultrasonic liquid level sensor and a capacitive liquid level switch; the ultrasonic liquid level sensor is installed on the top of the filter box, and the detection end of the ultrasonic liquid level sensor extends to the inside of the filter box; the capacitive liquid level switch is installed on the side wall of the filter box, and the detection end of the capacitive liquid level switch extends to the inside of the filter box.
[0007] Preferably, the filter box has an inlet and an outlet; a differential pressure monitoring component and a flow rate monitoring component are respectively installed at the inlet and outlet of the filter box; the differential pressure monitoring component includes a pair of differential pressure sensors, which are respectively installed on the telescopic inlet and outlet of the filter box; the flow rate monitoring component includes a flow rate sensor, which is installed on the outlet of the filter box.
[0008] Preferably, a displacement monitoring module is installed on the horizontal moving limit block, and a pressure regulating module is installed on the lifting extrusion block; the displacement monitoring module includes a horizontal displacement sensor, which is installed on the side wall of the horizontal moving limit block, and the detection end of the horizontal displacement sensor is in contact with the outer side wall of the convex telescopic block; the pressure regulating module includes a pressure sensor and an electromagnetic regulating valve, the pressure sensor is installed at the bottom end of the lifting extrusion block, and the detection end of the pressure sensor is in contact with the outer side wall of the lifting extrusion brush, and the electromagnetic regulating valve is installed inside the extrusion spring.
[0009] Beneficial effects
[0010] This utility model provides a filtration and impurity removal device for modified calcium carbonate production. It offers the following advantages: This filtration and impurity removal device for modified calcium carbonate production employs a multi-stage filtration unit constructed with partition plates, combined with an optimized flow field design using inclined trapezoidal blocks and triangular guide blocks to achieve uniform material-liquid distribution and efficient solid-liquid separation; it integrates an electromagnetically driven flexible cleaning system, which drives the cleaning components to move laterally via a horizontal screw module, utilizing the principle of electromagnetic repulsion to achieve flexible contact between the cleaning roller brush and the filter surface. Combined with a compression spring to dynamically adjust the contact pressure and a telescopic universal joint to transmit torque, it effectively removes deposits while avoiding damage to the filter cloth; the sealer uses a U-shaped electromagnet and a magnet-controlled flip design, combined with a U-shaped rubber ring to achieve a low-leakage seal, and an infrared sensor to monitor the flip plate status in real time; the equipment is equipped with multiple types of sensors, including ultrasonic level sensors, differential pressure sensors, and flow sensors, and is controlled by a PLC control system to achieve full-process automatic control—abnormal liquid level triggers feed protection, abnormal differential pressure or reduced flow automatically starts the cleaning program, and a capacitive level switch prevents backflow, forming a multi-parameter fusion closed-loop control link. Attached Figure Description
[0011] Figure 1 This is a three-dimensional schematic diagram of a filtration and impurity removal device for the production of modified calcium carbonate according to the present invention.
[0012] Figure 2 This is a front sectional view of a filtration and impurity removal device for the production of modified calcium carbonate according to the present invention.
[0013] Figure 3 for Figure 1 A magnified view of the letter "A" in the image.
[0014] In the diagram: 1. Filter box; 2. Divider plate; 3. Inclined trapezoidal block; 4. Triangular diversion block; 5. Discharge pipe; 6. Downward diversion hole; 7. Downward diversion pipe; 8. Horizontal cleaning screw module; 9. Horizontal movement limit block; 10. Horizontal adjustment groove; 11. Convex telescopic block; 12. Horizontal limit shaft; 13. Set spring; 14. Lifting extrusion groove; 15. Lifting extrusion block; 16. Extrusion spring; 17. Lifting extrusion roller brush; 18. Sealing limit block; 19. Horn-shaped discharge hole; 20. Limit flipping block; 21. Flipping shaft; 22. Flipping plate; 23. U-shaped electromagnet; 24. U-shaped magnet. Detailed Implementation
[0015] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0016] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.
[0017] Example
[0018] Please see Figure 1-3 In the production of modified calcium carbonate, filtration and impurity removal are crucial steps to ensure product quality. Traditional filtration equipment typically employs a single-stage filtration structure, which suffers from the following technical drawbacks: Low filtration efficiency: Single-stage filtration easily leads to rapid clogging of the filter cloth, requiring frequent shutdowns for cleaning, and uneven liquid distribution, with localized overload exacerbating impurity deposition; Poor cleaning effect: Fixed cleaning brushes cannot adapt to filter surface deformation, cleaning intensity is not adjustable, and residual deposits reduce filter cloth permeability; Low sealing reliability: Mechanical valves are prone to leakage due to wear, and lack status monitoring methods, posing a risk of solution backflow; Low automation: Relying on manual intervention, it is impossible to perceive parameters such as liquid level, differential pressure, and flow rate in real time, making closed-loop control difficult and resulting in poor equipment operational stability.
[0019] Therefore, this application protects a filtration and impurity removal device for the production of modified calcium carbonate. The modified calcium carbonate solution is guided to the inside of a filter box, which is divided into several sections by a partition plate. Inclined trapezoidal blocks on the partition plate guide the solution, which, along with a pair of triangular guide blocks, directs the solution to a network of downward-flowing holes. Simultaneously, a polypropylene filter cloth above the downward-flowing holes filters the modified calcium carbonate solution. A pair of horizontal cleaning screw modules operate, driving a horizontally moving limit block for stable horizontal extension and retraction. An energized horizontal circular electromagnet inside the horizontal adjustment groove of the horizontal moving limit block repels a horizontal circular magnet, causing the horizontal circular magnet to drive a convex extension / retraction mechanism on it. On the block, the convex telescopic block can stably extend and retract horizontally along the inner side of the horizontal adjustment groove. At the same time, multiple compression springs on the inner side of the convex telescopic block drive the lifting compression block on it, so that the lifting compression block can stably rise and fall along the inner side of the lifting compression groove. The lifting compression block drives the lifting compression roller brush on it, thereby squeezing multiple lifting compression roller brushes along the inclined trapezoidal block. At the same time, the cleaning drive motor on the convex telescopic block runs, driving one of its lifting compression roller brushes. Through one rotating lifting compression roller brush, it drives the telescopic universal joint on it, driving another lifting compression roller brush. Through a cleaning drive motor, multiple lifting compression roller brushes on the convex telescopic block are driven, thereby achieving flexible squeezing of the rotating brushes onto the inclined trapezoidal block.
[0020] Furthermore, by operating the stirring drive, the stirring shaft on the driving end of the stirring drive rotates, which in turn drives the stirring disc on it, and the stirring disc drives the stirring blades on it, thereby stirring and mixing the inside of the filter box.
[0021] In summary, the equipment achieves efficient and continuous operation through the coordinated design of a multi-stage filtration structure, intelligent sensing and monitoring, and an electromagnetically driven cleaning system. The equipment divides the filter box into multi-stage filtration units using partitions, employs a combination of inclined trapezoidal blocks and triangular guide blocks to achieve uniform distribution of the liquid, and uses polypropylene filter cloth to complete solid-liquid separation. The filtered solution is discharged through a downward drain pipe. To ensure filtration efficiency, the equipment integrates an electromagnetically driven flexible cleaning system. A horizontal screw module drives the cleaning components to move laterally, using the principle of electromagnetic repulsion to achieve flexible contact between the cleaning rollers and the filter surface. Spring-adjusted pressure ensures the rollers always adhere to the trapezoidal block surface, and a telescopic universal joint transmits torque to achieve synchronous rotation of multiple rollers, effectively removing deposits. During cleaning, a horizontal displacement sensor monitors the roller position in real time, and a pressure sensor dynamically adjusts the contact force to ensure cleaning accuracy. The seal adopts a magnetically controlled flip design, using a U-shaped electromagnet and a magnet to control the opening and closing of the discharge pipe, combined with a U-shaped rubber ring to achieve a low-leakage seal. Simultaneously, an infrared sensor detects the flip plate status and feeds it back to the control system to ensure sealing reliability. The mixing system drives the blades to rotate via a driving shaft, generating axial and radial flow fields to ensure uniform mixing of the feed liquid. The equipment is PLC-controlled, achieving fully automated control through data fusion from multiple sensors, including level sensors, differential pressure sensors, and flow sensors. An ultrasonic level sensor monitors the feed liquid level, triggering feed protection when the level is abnormal. A differential pressure sensor detects filter cloth clogging, and a flow sensor monitors filtration efficiency; the system automatically initiates a cleaning program when the differential pressure is abnormal, the flow rate decreases, or a set time is reached. A capacitive level switch prevents backflow, and an infrared beam sensor confirms the opening and closing status of the seal, forming a closed-loop control chain. This solution, through the deep integration of electromagnetic drive, flexible cleaning, magnetically controlled sealing, and intelligent sensing technology, achieves a significant improvement in filtration efficiency and long-term equipment stability.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A filtration and impurity removal device for the production of modified calcium carbonate, characterized in that, The system includes a filter box, with multiple partitions evenly installed on its inner side. Inclined trapezoidal blocks are installed on the inner side of each partition. A pair of triangular guide blocks are installed between the partitions and the inclined trapezoidal blocks. A pair of discharge pipes with a serrated cross-section are installed on the side wall of the filter box, and multiple seals are installed on the discharge pipes. Polypropylene filter cloth is installed on the partitions, and multiple downward drainage holes are formed on the partitions, located at the bottom of the polypropylene filter cloth. Downward drainage pipes are fitted onto the partitions and into the downward drainage holes. A cleaner is installed on the partitions and the filter box. The cleaner includes a pair of horizontal cleaning screw modules, which are installed parallel to each other at the bottom of the partitions. A horizontal movement limit block is installed on the moving end of each horizontal cleaning screw module, and the horizontal movement limit block has a [missing information - likely a feature or design feature]. The device includes a horizontal adjustment groove, which is convex in shape. A convex telescopic block is installed on the inner side of the horizontal adjustment groove. A horizontal circular electromagnet is installed on the inner side of the horizontal adjustment groove. A horizontal circular magnet is installed on the convex telescopic block. A horizontal bearing is installed on the convex telescopic block. A horizontal limiting shaft is installed on the inner side of the horizontal adjustment groove and is movably inserted into the inner side of the horizontal bearing. A sleeve spring is installed on the horizontal limiting shaft. A serrated support block is installed on the convex telescopic block. Multiple lifting and pressing grooves are formed on the convex telescopic block. Lifting and pressing blocks are installed on the inner side of the lifting and pressing grooves. A pressing spring is installed on each lifting and pressing block. Lifting and pressing roller brushes are installed on pairs of the lifting and pressing blocks. The lifting and pressing roller brushes are inserted into the pairs of lifting and pressing blocks via bearings. Multiple lifting and pressing roller brushes are interconnected via telescopic universal joints. A cleaning drive motor is installed on each lifting and pressing block, and the drive end of the cleaning drive motor is connected to the lifting and pressing roller brush.
2. The filtration and impurity removal equipment for modified calcium carbonate production according to claim 1, characterized in that, The sealer includes a sealing limiting block, which is installed inside the discharge pipe. The sealing limiting block has a horn-shaped discharge hole. A pair of limiting flip blocks are installed on the sealing limiting block. A flip shaft is installed on the pair of limiting flip blocks. A flip plate is installed on the flip shaft. A U-shaped rubber ring is installed on the flip plate. A U-shaped electromagnet is installed on the sealing limiting block. A U-shaped magnet is installed on the flip plate.
3. The filtration and impurity removal equipment for modified calcium carbonate production according to claim 2, characterized in that, A stirrer is installed on the side wall of the filter box. The stirrer includes multiple stirring shafts, which are respectively inserted into the filter box. Multiple stirring discs are installed on the stirring shafts. The stirring discs are inserted into the side wall of the filter box through bearings. Stirring blades are installed on the stirring discs. A stirring drive motor is installed on the stirring shaft.
4. The filtration and impurity removal equipment for modified calcium carbonate production according to claim 3, characterized in that, A liquid level monitor is installed on the filter box. The liquid level monitor includes an ultrasonic liquid level sensor and a capacitive liquid level switch. The ultrasonic liquid level sensor is installed on the top of the filter box, and the detection end of the ultrasonic liquid level sensor extends to the inside of the filter box. The capacitive liquid level switch is installed on the side wall of the filter box, and the detection end of the capacitive liquid level switch extends to the inside of the filter box.
5. A filtration and impurity removal device for modified calcium carbonate production according to claim 4, characterized in that, The filter box has an inlet and an outlet; a differential pressure monitoring component and a flow rate monitoring component are respectively installed at the inlet and outlet of the filter box; the differential pressure monitoring component includes a pair of differential pressure sensors, which are respectively installed on the telescopic inlet and outlet of the filter box; the flow rate monitoring component includes a flow rate sensor, which is installed on the outlet of the filter box.
6. The filtration and impurity removal equipment for modified calcium carbonate production according to claim 5, characterized in that, A displacement monitoring module is installed on the horizontal moving limit block, and a pressure regulating module is installed on the lifting extrusion block. The displacement monitoring module includes a horizontal displacement sensor, which is installed on the side wall of the horizontal moving limit block, and the detection end of the horizontal displacement sensor is in contact with the outer side wall of the convex telescopic block. The pressure regulating module includes a pressure sensor and an electromagnetic regulating valve. The pressure sensor is installed at the bottom end of the lifting extrusion block, and the detection end of the pressure sensor is in contact with the outer side wall of the lifting extrusion roller. The electromagnetic regulating valve is installed inside the extrusion spring.