Desulfurization pretreatment filtering equipment

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to desulfurization pretreatment filtering equipment which is characterized in that a driving motor is fixedly connected to one side of the bottom of a base through bolts, the bottom end of a rotating rod penetrates through the base and is in transmission connection with an output shaft of the driving motor, and an outer filter cartridge is fixedly connected to the inner side of a box body; the inner side of the outer filter cylinder is fixedly connected with an inner filter cylinder, the top of the outer filter cylinder is fixedly connected with an annular plate, the middle of the annular plate is provided with a top groove, a cleaning plate is arranged between the outer filter cylinder and the inner filter cylinder, and the inner side and the outer side of the cleaning plate are fixedly connected with cleaning brushes. The driving motor is used for driving the box body and the filter cartridge assembly to rotate at a high speed, so that wastewater penetrates through the filter material in an accelerated manner under the action of centrifugal force, the filtering speed and flux are greatly improved, and compared with a traditional filtering mode depending on gravity or a single filter plate, the filtering efficiency is remarkably improved, and the production requirements of high load and continuous operation are met.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a desulfurization pretreatment filtration device. Background Technology

[0002] Desulfurization pretreatment filtration equipment plays a crucial role in industrial wastewater treatment. As a key link in the wastewater purification process, its filtration performance and treatment efficiency have a decisive impact on the overall wastewater treatment effect and the stability of subsequent processes. Especially in the preliminary filtration stage before sulfur-containing wastewater enters advanced treatment or is discharged, existing filtration equipment has gradually revealed a series of obvious limitations and technical problems when treating desulfurization wastewater with different concentrations and high solids content. Desulfurization wastewater typically originates from coal-fired power plants, chemical plants, steel mills, and other industries. It is formed after the exhaust gas generated during combustion or reaction processes is treated by wet desulfurization, containing a large amount of suspended solids, heavy metal ions, sulfates, and sulfides. To ensure the stable operation and compliant discharge of subsequent treatment systems, effective pretreatment filtration is essential after desulfurization. As a crucial step in removing large particulate impurities and improving water clarity, the equipment structure and filtration method of pretreatment filtration directly affect the operating efficiency and maintenance frequency of the entire system.

[0003] Especially in the core aspects of filter media arrangement and water flow guidance, existing filtration equipment shows significant shortcomings when treating desulfurization wastewater with high turbidity and high suspended solids content. Patent CN211255501U discloses an industrial wastewater desulfurization pretreatment filtration device, including a shell with an outlet pipe at the lower end of one side, positioned lower than the inlet pipe. A square tube is installed in the center of the top cover, with an annular plate on it. Reagent addition is controlled by a leakage mechanism. Sliding mechanisms are located on both sides inside the shell for slidingly connecting a filter screen frame with handles. A circular hole is opened in the center of the column and connected to a circular rod for centralized collection of sediment and centralized control of the chemical reagent flow rate, making operation relatively convenient. Although this device has certain advantages in reagent control and sediment collection, the existing technology still suffers from difficulties in rapidly filtering wastewater.

[0004] Specifically, existing filtration equipment faces challenges in practical applications, including slow filtration speed, low filter media utilization, and susceptibility to clogging. These problems directly lead to reduced wastewater treatment efficiency, increased operational complexity, and difficulty in meeting the demands of high-load, continuous production. Therefore, to address the numerous shortcomings of existing technologies, we urgently need an innovative desulfurization pretreatment filtration device to solve these problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a desulfurization pretreatment filtration device, which solves the problems faced by existing filtration devices in practical applications, such as slow filtration speed, low filter media utilization rate, and easy clogging, which directly leads to a decrease in wastewater treatment efficiency, an increase in operational complexity, and difficulty in meeting the production needs of high-load and continuous operation.

[0006] To achieve the above objectives, this utility model provides a desulfurization pretreatment filtration device, including a base, a box body rotatably connected to the top of the base, and a rotating rod fixedly connected to the bottom of the box body;

[0007] A drive motor is fixedly connected to one side of the bottom of the base by bolts, and the bottom end of the rotating rod passes through the base and is connected to the output shaft of the drive motor for transmission. An outer filter cartridge is fixedly connected to the inside of the housing, and an inner filter cartridge is fixedly connected to the inside of the outer filter cartridge. An annular plate is fixedly connected to the top of the outer filter cartridge, and a top groove is opened in the middle of the annular plate. A cleaning plate is provided between the outer filter cartridge and the inner filter cartridge, and cleaning brushes are fixedly connected to both the inner and outer sides of the cleaning plate. Support rods are fixedly connected to both sides of the top of the cleaning plate. An annular top cover is rotatably connected to the top of the annular plate by bolts. A bottom valve is installed on one side of the lower part of the housing.

[0008] The upper part between the outer filter cartridge and the inner filter cartridge is provided with an arc-shaped connecting plate, and the top ends of the two support rods are fixedly connected to the bottom of the arc-shaped connecting plate.

[0009] One side of the outer filter cartridge is provided with a threaded rod, and one end of the threaded rod passes through the outer filter cartridge and the arc-shaped connecting plate in sequence through the threaded groove.

[0010] The bottom of the box is fixedly connected to two sliders, and the two sliders are slidably connected to the top of the base through an annular groove.

[0011] The top of the box is fixedly connected to a cover plate by bolts. The top of the cover plate is connected to a rotary joint, and the top of the rotary joint is connected to a feed pipe.

[0012] The bottom end of the rotating rod passes through the base through a bearing sleeve, and several heating coils are sleeved on the outside of the box, with all the heating coils distributed vertically along the outside of the box.

[0013] This utility model discloses a desulfurization pretreatment filtration device. By introducing a rotary centrifugal filtration mechanism, a drive motor rotates the housing and filter cartridge assembly at high speed, causing wastewater to penetrate the filter media more rapidly under centrifugal force. This significantly improves filtration speed and throughput. Compared to traditional filtration methods relying on gravity or a single filter plate, the filtration efficiency is significantly improved, meeting the production requirements of high-load, continuous operation. The device employs a double-layer filter cartridge structure for multi-stage filtration, enhancing filtration precision and the ability to intercept impurities of different particle sizes, thus improving overall filtration efficiency. Furthermore, the inclusion of a liftable cleaning plate and its cleaning brush allows for periodic cleaning of the filter cartridge surface without shutting down the system, preventing efficiency loss due to filter media clogging, significantly extending the stable operating cycle of the equipment, and reducing the frequency of manual maintenance and operating costs. The top trough enables continuous water intake, and combined with the bottom valve for drainage control, the entire filtration process can be operated continuously without frequent start-stop cycles, further enhancing the automation level and processing capacity of the equipment. The annular top cover design not only enhances the equipment's sealing but also facilitates disassembly and cleaning, improving ease of use and safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0016] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a top view of an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the outer filter cartridge and its structure according to an embodiment of the present invention.

[0019] Figure 5 This is a top view schematic diagram of the inner and outer filter cartridges of an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the cleaning plate and its structure according to an embodiment of the present utility model.

[0021] 1. Base; 2. Housing; 3. Slider; 4. Annular groove; 5. Drive motor; 6. Bottom valve; 7. Heating coil; 8. Rotary joint; 9. Feed pipe; 10. Rotating rod; 11. Outer filter cartridge; 12. Annular top cover; 13. Annular plate; 14. Top groove; 15. Inner filter cartridge; 16. Arc-shaped connecting plate; 17. Support rod; 18. Threaded rod; 19. Cleaning plate; 20. Cleaning brush; 21. Cover plate. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Please see Figure 1-6 A desulfurization pretreatment filtration device includes a base 1, a housing 2 rotatably connected to the top of the base 1, and a rotating rod 10 fixedly connected to the bottom of the housing 2; a drive motor 5 is fixedly connected to one side of the bottom of the base 1 by bolts, and the bottom end of the rotating rod 10 passes through the base 1 and is connected to the output shaft of the drive motor 5 for transmission; an outer filter cylinder 11 is fixedly connected to the inner side of the housing 2, and an inner filter cylinder 15 is fixedly connected to the inner side of the outer filter cylinder 11; an annular plate 13 is fixedly connected to the top of the outer filter cylinder 11, and a top groove 14 is opened in the middle of the annular plate 13; a cleaning plate 19 is provided between the outer filter cylinder 11 and the inner filter cylinder 15, and cleaning brushes 20 are fixedly connected to both the inner and outer sides of the cleaning plate 19; support rods 17 are fixedly connected to both sides of the top of the cleaning plate 19; an annular top cover 12 is rotatably connected to the top of the annular plate 13 by bolts; and a bottom valve 6 is installed on one side of the lower part of the housing 2.

[0024] Before wastewater filtration, the industrial wastewater that needs to be pre-treated for desulfurization is first injected into the tank 2 through the top trough 14 and flows into the inner filter cartridge 15. At this time, the drive motor 5 installed on one side of the bottom of the base 1 is started. The output shaft of the drive motor 5 is connected to the bottom of the tank 2 through the rotating rod 10 and drives the entire tank 2 to rotate. After the tank 2 rotates, it drives the outer filter cartridge 11 and the inner filter cartridge 15 inside to rotate together, thereby realizing the centrifugal filtration effect. Due to centrifugal force, larger particles of impurities in the wastewater are trapped on the surface or inside of the filter cartridge, while the filtrate quickly passes through the filter media under the combined action of pressure difference and centrifugal force, completing the preliminary purification treatment. During this process, the annular plate 13 is fixed to the top of the outer filter cartridge 11 and is provided with a top groove 14 for continuous water intake, enabling the equipment to operate continuously and avoiding the impact of frequent shutdowns for material feeding on treatment efficiency. At the same time, the top of the annular plate 13 is connected to an annular top cover 12 by bolts, which plays a sealing and protective role and prevents liquid splashing. The purified water after multi-stage filtration is discharged through the bottom valve 6 located on one side of the lower part of the housing 2, achieving efficient and stable water discharge operation. After the equipment has been running for a period of time, in order to prevent filter cartridge clogging and ensure filtration efficiency, the cover plate 21 on the top of the housing 2 can be opened and the support rod 17 on the cleaning plate 19 can be manually pulled to make the cleaning plate 19 move up and down between the inner and outer filter cartridges. The cleaning brushes 20 fixed on the inner and outer sides of the plate simultaneously brush the filter screen surfaces of the inner filter cartridge 15 and the outer filter cartridge 11, effectively removing suspended matter and sediments attached to the surface of the filter media, extending the service life of the filter media, reducing the replacement frequency, and reducing maintenance costs.

[0025] Furthermore, an arc-shaped connecting plate 16 is provided at the upper part between the outer filter cartridge 11 and the inner filter cartridge 15, and the top ends of the two support rods 17 are fixedly connected to the bottom of the arc-shaped connecting plate 16. During the cleaning process, when the operator manually pulls the support rods 17, the support rods 17 can drive the cleaning plate 19 to rise or fall smoothly, ensuring that the cleaning brush 20 can clean the outer filter cartridge 11 and the inner filter cartridge 15 evenly and effectively. This design not only improves cleaning efficiency but also ensures stability during the cleaning process, preventing equipment damage caused by improper operation.

[0026] Furthermore, a threaded rod 18 is provided on one side of the outer filter cylinder 11, and one end of the threaded rod 18 passes through the outer filter cylinder 11 and the arc-shaped connecting plate 16 in sequence through the threaded groove, thereby limiting the arc-shaped connecting plate 16 by means of the threaded rod 18.

[0027] Furthermore, sliders 3 are fixedly connected to both sides of the bottom of the housing 2, and both sliders 3 are slidably connected to the top of the base 1 through annular grooves 4. When the drive motor 5 starts and drives the rotating rod 10 to rotate, the sliders 3 slide along the annular grooves 4, ensuring that the housing 2 remains stable during high-speed rotation and avoiding displacement or vibration. This design enhances the operational stability of the entire system, reduces unnecessary mechanical wear, reduces noise pollution, and improves the overall operating comfort and safety of the equipment.

[0028] Furthermore, a cover plate 21 is bolted to the top of the housing 2. A rotary joint 8 is connected to the top of the cover plate 21, and a feed pipe 9 is connected to the top of the rotary joint 8. This allows wastewater to smoothly enter the housing 2 from the outside through the feed pipe 9 and the rotary joint 8 without stopping the equipment. This design allows for continuous feeding, improving work efficiency. Simultaneously, the design of the rotary joint 8 ensures that no leakage occurs even during equipment rotation, guaranteeing operational safety and reliability.

[0029] Furthermore, the bottom end of the rotating rod 10 passes through the base 1 via a bearing sleeve, and several heating coils 7 are fitted onto the outer side of the housing 2. All the heating coils 7 are distributed vertically along the outer side of the housing 2. When treating certain types of desulfurization wastewater, it may be necessary to preheat the wastewater to improve the filtration effect or accelerate the chemical reaction rate. The design of the heating coils 7 allows the equipment to achieve temperature regulation without changing the original structure, which not only meets the process requirements but also provides convenient conditions for subsequent treatment steps, further optimizing the efficiency of the overall treatment process.

[0030] In summary:

[0031] When pre-treatment filtration of industrial desulfurization wastewater is required, the operator first transports the wastewater into the tank 2 through the feed pipe 9 located at the top of the cover plate 21 and the rotary joint 8. The wastewater then enters the inner filter cartridge 15 through the top groove 14 in the middle of the annular plate 13. At this time, the drive motor 5, which is installed on one side of the bottom of the base 1 and fixed with bolts, is started. Its output shaft drives the entire tank 2 to rotate at high speed through the rotating rod 10 that passes through the base 1 and is connected to the bottom of the tank 2. This, in turn, drives the outer filter cartridge 11 fixed inside the tank 2 and the inner filter cartridge 15 nested inside it to rotate together, forming a centrifugal filtration effect. Under the dual action of centrifugal force and pressure difference, large suspended particles in the wastewater are trapped on the surface or in the pores of the filter media of the inner and outer filter cartridges, while the filtrate quickly passes through the filter layer. After completing the preliminary purification treatment, it is discharged from the system through the bottom valve 6 located on one side of the bottom of the tank 2. During this process, the top of the annular plate 13 is connected to the annular top cover 12 by bolts, which plays a sealing and protective role, preventing liquid splashing and the entry of external impurities, while ensuring the safety and stability of the equipment during operation. To prevent filter cartridge clogging from affecting filtration efficiency, after a certain period of operation, the operator can open the cover plate 21 on the top of the housing 2 and lift the support rods 17 on both sides of the top of the cleaning plate 19 to move the cleaning plate 19 up and down along the space between the inner and outer filter cartridges. The cleaning brushes 20, which are fixedly connected to both the inner and outer sides, simultaneously perform physical brushing on the filter screen surfaces of the inner filter cartridge 15 and the outer filter cartridge 11 to remove attached impurities and deposits, extend the service life of the filter media, and reduce the frequency of replacement. Furthermore, to improve the stability and ease of operation of the cleaning process, an arc-shaped connecting plate 16 is provided at the upper part between the outer filter cartridge 11 and the inner filter cartridge 15. The tops of the two support rods 17 are fixedly connected to its bottom, so that the cleaning plate 19 can maintain balanced movement during the lifting process, avoiding uneven cleaning or damage to the filter material caused by shaking. At the same time, a threaded rod 18 is provided on one side of the outer filter cartridge 11, one end of which passes through the outer filter cartridge 11 and the arc-shaped connecting plate 16 in sequence through the threaded groove. This is used to limit and fix the arc-shaped connecting plate 16, ensuring that it will not shift due to vibration during operation, thereby enhancing the reliability of the overall structure. To ensure the stability of the housing 2 under high-speed rotation, sliders 3 are fixedly connected to both sides of the bottom of the housing 2, forming a sliding connection with the annular groove 4 provided on the top of the base 1. In this way, during the rotation of the housing 2, the sliders 3 slide along the annular groove 4, effectively reducing vibration and shift, improving the stability of equipment operation, and reducing noise pollution and mechanical wear. Meanwhile, to meet the requirements of continuous feeding, a cover plate 21 is fixedly connected to the top of the box 2 by bolts and is connected to the feed pipe 9 through a rotary joint 8, ensuring stable wastewater input even when the box 2 is continuously rotating, without the need to stop the machine to add material, thus improving the processing efficiency and automation level.Furthermore, to meet the treatment needs under different water quality conditions, the bottom end of the rotating rod 10 passes through the base 1 via a bearing sleeve to reduce rotational friction resistance and improve transmission efficiency; while several heating coils 7 are sleeved on the outside of the box 2. These heating coils 7 are distributed vertically along the outside of the box 2, which can provide auxiliary heating function when treating low-temperature wastewater or when chemical reactions need to be promoted, which helps to improve filtration performance and optimize subsequent treatment processes. It significantly improves filtration speed and processing efficiency, solving problems such as "slow filtration speed, low filter media utilization, and easy clogging" in existing technologies. At the same time, the double-layer filter cartridge structure realizes multi-stage interception, enhancing the removal capacity of impurities of different particle sizes. The combination of the cleaning plate 19 and cleaning brush 20 with the linkage structure of the arc-shaped connecting plate 16, support rod 17 and threaded rod 18 makes filter media cleaning more efficient and easier to operate, extending the service life of the filter media. The cooperative design of the slider 3 and the annular groove 4 improves the stability of the housing 2 during rotation, reducing noise and wear. The combination of the rotary joint 8 and the feed pipe 9 supports continuous feeding, improving the automation level of the equipment. The design of the heating coil 7 provides additional process adaptability for complex working conditions.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A desulfurization pretreatment filtration device, comprising a base, characterized in that, It also includes a box body rotatably connected to the top of the base, and a rotating rod fixedly connected to the bottom of the box body; A drive motor is fixedly connected to one side of the bottom of the base by bolts, and the bottom end of the rotating rod passes through the base and is connected to the output shaft of the drive motor for transmission. An outer filter cartridge is fixedly connected to the inner side of the housing, and an inner filter cartridge is fixedly connected to the inner side of the outer filter cartridge. An annular plate is fixedly connected to the top of the outer filter cartridge, and a top groove is opened in the middle of the annular plate. A cleaning plate is provided between the outer filter cartridge and the inner filter cartridge, and cleaning brushes are fixedly connected to both the inner and outer sides of the cleaning plate. Support rods are fixedly connected to both sides of the top of the cleaning plate. An annular top cover is rotatably connected to the top of the annular plate by bolts. A bottom valve is installed on one side of the lower part of the housing.

2. The desulfurization pretreatment filtration equipment as described in claim 1, characterized in that, An arc-shaped connecting plate is provided at the upper part between the outer filter cartridge and the inner filter cartridge, and the top ends of the two support rods are fixedly connected to the bottom of the arc-shaped connecting plate.

3. The desulfurization pretreatment filtration equipment as described in claim 2, characterized in that, One side of the outer filter cylinder is provided with a threaded rod, and one end of the threaded rod passes through the outer filter cylinder and the arc-shaped connecting plate in sequence through the threaded groove.

4. The desulfurization pretreatment filtration equipment as described in claim 1, characterized in that, Both sides of the bottom of the box are fixedly connected to sliders, and both sliders are slidably connected to the top of the base through an annular groove.

5. The desulfurization pretreatment filtration equipment as described in claim 1, characterized in that, The top of the box is fixedly connected to a cover plate by bolts. The top of the cover plate is connected to a rotary joint, and the top of the rotary joint is connected to a feed pipe.

6. The desulfurization pretreatment filtration equipment as described in claim 1, characterized in that, The bottom end of the rotating rod passes through the base through a bearing sleeve, and several heating coils are sleeved on the outside of the box, with all the heating coils distributed vertically along the outside of the box.

Images