Phosphorite screening wastewater recycling treatment equipment
Patent Information
- Application Number
- CN202522224368.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-21
AI Technical Summary
[0003]现有设备多采用单一沉淀池进行预处理，依赖自然沉降去除固体杂质，处理污水需耗费大量时间，且对细颗粒泥沙的截留率不足60%，未充分过滤的废水直接进入后续处理单元，导致设备内部易淤积杂质，进一步降低了预处理效果；
[0022]1. This utility model uses a rigid pipe with an inclined primary filter screen, a sewage pipe, and a float plate in the primary filter tank. The inclined primary filter screen intercepts large particles of impurities and discharges them through the sewage pipe. The float plate drives the flexible hose to draw up the supernatant from the upper layer of the primary filter tank, preventing impurities at the bottom from being sucked into the transfer pump. This achieves efficient pretreatment of wastewater, replacing the natural sedimentation of the traditional single sedimentation tank, greatly shortening the pretreatment time and improving the retention rate of fine particles of silt.
Smart Images
Figure CN224754212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of phosphate rock processing wastewater treatment equipment, specifically, to phosphate rock screening wastewater recycling treatment equipment. Background Technology
[0002] Phosphate ore washing and screening is a core upstream step in phosphate chemical production. During this process, a large amount of wastewater containing mud, sand, and suspended solids is generated, accounting for more than 60% of the total wastewater from mineral processing. In order to save water resources and achieve wastewater recycling, it is usually necessary to treat the phosphate ore screening wastewater. When performing the treatment, corresponding treatment equipment is usually used.
[0003] Existing equipment mostly uses a single sedimentation tank for pretreatment, relying on natural sedimentation to remove solid impurities. Treating wastewater requires a lot of time, and the retention rate of fine particles and silt is less than 60%. Insufficiently filtered wastewater directly enters the subsequent treatment unit, which makes it easy for impurities to accumulate inside the equipment, further reducing the pretreatment effect.
[0004] Furthermore, some traditional treatment equipment often employs a "single-stage filtration + simple flocculation" process. For example, treating wastewater with only a single layer of quartz sand filtration cannot effectively remove other impurities in the water. The suspended solids content in the wastewater treated by such equipment remains high, far exceeding the standards for recycling or discharge. In view of this, we propose a phosphate rock screening wastewater recycling treatment equipment. Utility Model Content
[0005] The purpose of this invention is to provide a wastewater recycling treatment device for phosphate rock screening, so as to solve the defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A wastewater recycling treatment device for phosphate rock screening includes a primary filter tank. An inclined primary filter screen is fixedly installed on the left side wall of the primary filter tank. A sewage pipe extending out of the primary filter tank is fixedly installed near the ground end of the inclined primary filter screen, and a gate valve is fixedly installed on the sewage pipe. A primary filter cylinder, a secondary filter cylinder, and a post-filter cylinder are arranged on one side of the primary filter tank. The primary filter cylinder and the primary filter tank are connected by a pump to transport water. The primary filter cylinder and the secondary filter cylinder are connected by an output pipe. The secondary filter cylinder and the post-filter cylinder are connected by a guide pipe. An inner fine sand layer is arranged inside the primary filter cylinder. A polypropylene packing layer is arranged inside the secondary filter cylinder. A precision filter screen is detachably installed inside the post-filter cylinder. Vertical pipes are fixedly installed at the bottom ends of the primary filter cylinder, the secondary filter cylinder, and the post-filter cylinder, and valves are fixedly installed on the vertical pipes.
[0008] Preferably, the inclined primary filter is inclined upward at 45 to 60 degrees, and the inclination angle of the drain pipe is the same as that of the inclined primary filter.
[0009] This feature allows impurities on the tilted primary filter to be easily discharged through the drain pipe.
[0010] Preferably, a plurality of support rods are fixedly installed between the inclined primary filter screen and the bottom wall of the primary filter tank for support, and the support rods are columnar structures.
[0011] Preferably, a sewage pipe is provided above the inclined primary filter screen, and a sewage flow hood is fixedly installed at the bottom end of the sewage pipe;
[0012] This feature helps guide wastewater into the inclined primary filter section for filtration.
[0013] Preferably, a rigid pipe is fixedly installed at the inlet end of the conveying pump, the end of the rigid pipe is fixedly installed on the primary filter tank, and an outlet pipe is fixedly installed at the outlet end of the conveying pump, the outlet pipe being inserted to the bottom center of the inner fine sand layer.
[0014] This setting facilitates normal water transport operations.
[0015] Preferably, a flexible tube is fixedly installed at the end of the rigid tube that enters the primary filter tank, and a float plate is fixedly installed at the top of the flexible tube, with the float plate located inside the primary filter tank;
[0016] This feature allows the supernatant to be drawn out, preventing impurities settling at the bottom from being sucked into the transfer pump.
[0017] Preferably, the end of the output pipe is inserted to the bottom center of the polypropylene packing layer, and a mesh support plate is fixedly installed on the inner wall of the rear filter cartridge, and the precision filter screen is detachably installed on the top surface of the mesh support plate.
[0018] This feature facilitates the installation, removal, and cleaning of the precision filter.
[0019] Preferably, a cleaning pipe is fixedly installed on the bottom side of the primary filter tank, and a manual valve is fixedly installed on the cleaning pipe;
[0020] This setting facilitates the subsequent cleaning of impurities settled in the primary filter tank.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] 1. This utility model uses a rigid pipe with an inclined primary filter screen, a sewage pipe, and a float plate in the primary filter tank. The inclined primary filter screen intercepts large particles of impurities and discharges them through the sewage pipe. The float plate drives the flexible hose to draw up the supernatant from the upper layer of the primary filter tank, preventing impurities at the bottom from being sucked into the transfer pump. This achieves efficient pretreatment of wastewater, replacing the natural sedimentation of the traditional single sedimentation tank, greatly shortening the pretreatment time and improving the retention rate of fine particles of silt.
[0023] 2. This utility model, through the setting of a fine sand layer in the primary filter cartridge, a polypropylene packing layer in the middle filter cartridge, and a detachable precision filter screen in the post-filter cartridge, allows wastewater to pass through the fine sand layer for preliminary filtration, the polypropylene packing layer for impurity adsorption, and the precision filter screen for deep filtration in sequence, forming a three-stage synergistic filtration system. This system achieves comprehensive removal of impurities such as silt and suspended solids from the wastewater, replacing the traditional "single-stage filtration + simple flocculation" process. It reduces the suspended solids content of the treated wastewater to below the standards for recycling or discharge, thereby improving the precision of wastewater purification and meeting the needs of water resource recycling.
[0024] 3. This utility model features a mesh support plate inside the rear filter cartridge, a cleaning pipe for the primary filter tank, and vertical pipes at the bottom of each filter cartridge. The mesh support plate facilitates the installation, removal, and cleaning of the precision filter screen. The cleaning pipes can periodically clean impurities at the bottom of the primary filter tank. The valves on the vertical pipes allow for the individual discharge of impurities trapped inside each filter cartridge, thus enabling convenient maintenance of all components of the equipment. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is one of the partial structural schematic diagrams of this utility model;
[0027] Figure 3 This is the second partial structural schematic diagram of the present utility model;
[0028] The meanings of the labels in the diagram are as follows:
[0029] 1. Primary filter tank; 10. Inclined primary filter screen; 11. Support rod; 12. Sewage pipe; 13. Sewage flow hood; 14. Drain pipe; 141. Gate valve; 15. Cleaning pipe; 151. Manual valve;
[0030] 2. Transfer pump; 20. Rigid pipe; 21. Flexible hose; 22. Float; 23. Outlet pipe;
[0031] 3. Primary filter cartridge; 30. Inner fine sand layer; 31. Output pipe;
[0032] 4. Medium filter cartridge; 40. Polypropylene packing layer; 41. Flow guide pipe;
[0033] 5. Rear filter cartridge; 50. Mesh support plate; 51. Precision filter screen;
[0034] 6. Vertical pipe; 60. Valve. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] Please see Figures 1-3 This utility model provides a technical solution: a wastewater recycling treatment device for phosphate rock screening, including a primary filter tank 1. An inclined primary filter screen 10 is fixedly installed on the left side wall of the primary filter tank 1. A sewage pipe 14 extending out of the primary filter tank 1 is fixedly installed at the near-ground end of the inclined primary filter screen 10. A gate valve 141 is fixedly installed on the sewage pipe 14. The inclined primary filter screen 10 intercepts large particulate impurities in the wastewater. The impurities slide down the filter screen to the sewage pipe 14. Opening the gate valve 141 can discharge the impurities, enabling the primary filter tank 1 to quickly complete the wastewater pretreatment, avoiding large particulate impurities from entering the subsequent filter cartridges and causing blockage, and ensuring the smooth flow of the subsequent filtration process.
[0038] like Figure 1 As shown, a primary filter cartridge 3, a secondary filter cartridge 4, and a post-filter cartridge 5 are provided on one side of the primary filter tank 1. The primary filter cartridge 3 is connected to the primary filter tank 1 by a transfer pump 2 for water transfer. The primary filter cartridge 3 and the secondary filter cartridge 4 are connected by an output pipe 31. The secondary filter cartridge 4 and the post-filter cartridge 5 are connected by a guide pipe 41. The primary filter cartridge 3 is provided with an inner fine sand layer 30. The secondary filter cartridge 4 is provided with a polypropylene packing layer 40. The post-filter cartridge 5 is detachably installed with a precision filter screen 51, realizing multi-stage treatment of sewage and enabling the filtered water to meet the requirements for reuse.
[0039] In this embodiment, the inclined primary filter 10 is set at an upward tilt of 45 to 60 degrees. The tilt angle of the drain pipe 14 is the same as that of the inclined primary filter 10. The tilt angle allows impurities to slide naturally towards the drain pipe 14 under the action of gravity, so that the slag can be discharged without additional power, making the impurities discharged more thoroughly, reducing the accumulation of impurities on the filter screen surface, and maintaining the stability of the primary filtration efficiency.
[0040] like Figure 2 As shown, multiple support rods 11 are fixedly installed between the inclined primary filter screen 10 and the bottom wall of the primary filter tank 1 for support. The support rods 11 have a columnar structure and provide stable support for the inclined primary filter screen 10, preventing the filter screen from deforming or being damaged due to the weight of wastewater and impurities, ensuring that the filter screen maintains a stable filtration shape for a long time and extending the service life of the filter screen.
[0041] like Figure 2 As shown, a sewage pipe 12 is provided above the inclined primary filter screen 10, and a sewage flow hood 13 is fixedly installed at the bottom end of the sewage pipe 12. The sewage flow hood 13 slows down the sewage inflow speed and disperses the water flow, so that the sewage evenly covers the surface of the inclined primary filter screen 10, avoids the local water flow being too fast and causing impurities to penetrate the filter screen, improves the primary filtration effect, and at the same time reduces the impact of water flow on the filter screen.
[0042] Specifically, a rigid pipe 20 is fixedly installed at the inlet end of the transfer pump 2, and the end of the rigid pipe 20 is fixedly installed on the primary filter tank 1. An outlet pipe 23 is fixedly installed at the outlet end of the transfer pump 2. The outlet pipe 23 is inserted to the bottom center of the inner fine sand layer 30. The transfer pump 2 draws wastewater from the primary filter tank 1 through the rigid pipe 20 and sends it to the inner fine sand layer 30 through the outlet pipe 23, so that the wastewater can stably enter the subsequent filtration stage and ensure the transfer efficiency.
[0043] Furthermore, a flexible tube 21 is fixedly installed at the end of the rigid tube 20 that enters the primary filter tank 1. A float plate 22 is fixedly installed at the top of the flexible tube 21. The float plate 22 is located inside the primary filter tank 1. The float plate 22 floats on the water surface and drives the flexible tube 21 to rise and fall with the water level, so that the transfer pump 2 always draws the supernatant from the upper layer of the primary filter tank 1, avoiding the impurities that settle at the bottom from being sucked into the pump body and causing blockage, while ensuring the initial cleanliness of the wastewater entering the subsequent filter cartridge.
[0044] In addition, the end of the output pipe 31 is inserted into the bottom center of the polypropylene packing layer 40. A mesh support plate 50 is fixedly installed on the inner wall of the rear filter cartridge 5. The precision filter screen 51 is detachably installed on the top surface of the mesh support plate 50, so that the wastewater after primary filtration can flow fully through the packing layer. The mesh support plate 50 supports the detachable precision filter screen 51, which facilitates the installation, removal and cleaning of the filter screen, ensures the stability of the filter screen during filtration, and improves the efficiency of multi-stage filtration and the convenience of maintenance.
[0045] like Figure 2As shown, a cleaning pipe 15 is fixedly installed on the bottom side of the primary filter tank 1, and a manual valve 151 is fixedly installed on the cleaning pipe 15. By periodically opening the manual valve 151, impurities settled at the bottom of the primary filter tank 1 can be discharged through the cleaning pipe 15.
[0046] like Figure 1 and Figure 3 As shown, vertical pipes 6 are fixedly installed at the bottom of the primary filter cartridge 3, the middle filter cartridge 4, and the post-filter cartridge 5. Valves 60 are fixedly installed on the vertical pipes 6. When the corresponding valves 60 are opened, the impurities trapped in each filter cartridge can be discharged separately through the vertical pipes 6. The filtered water in the post-filter cartridge 5 can be discharged along the vertical pipes 6. Cleaning can be completed without disassembling the filter cartridges, reducing the difficulty of maintenance.
[0047] Finally, it should be noted that the delivery pump 2, the corresponding control system, and the external power supply of this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.
[0048] In use, the wastewater recycling treatment equipment for phosphate rock screening of this utility model allows the wastewater to flow into the sewage pipe 12. The sewage flow slow hood 13 at the bottom disperses the water flow and slows down the flow rate, so that the wastewater flows through the inclined primary filter screen 10. The filter screen intercepts large particles of impurities, which slide down the filter screen to the sewage pipe 14. The gate valve 141 can be opened to discharge the impurities. The impurities settled at the bottom of the primary filter tank 1 can be cleaned regularly through the cleaning pipe 15 and the manual valve 151. The columnar support rod 11 ensures the stability of the filter screen.
[0049] Start the delivery pump 2 to draw the pre-filtered wastewater through the rigid pipe 20 and the flexible pipe 21, and send it to the bottom of the fine sand layer 30 in the pre-filter cartridge 3 for filtration through the outlet pipe 23; the wastewater then flows into the middle filter cartridge 4 through the outlet pipe 31 and is deeply purified through the polypropylene packing layer 40; finally, it enters the post-filter cartridge 5 and is filtered through the detachable precision filter screen 51 supported by the mesh support plate 50. The qualified water is discharged from the vertical pipe 6 at the bottom of the post-filter cartridge 5 for reuse.
[0050] After filtration is completed, open the valve 60 on the vertical pipe 6 at the bottom of the primary filter cartridge 3 and the secondary filter cartridge 4 to discharge the impurities and filter media trapped in each filter cartridge. At the same time, new filter media can be added from the top of the filter cartridge. When the precision filter screen 51 needs to be cleaned, it can be removed and replaced directly from the mesh support plate 50.
[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wastewater recycling treatment device for phosphate rock screening, comprising a primary filter (1), characterized in that: An inclined primary filter screen (10) is fixedly installed on the left side wall of the primary filter tank (1). A sewage pipe (14) extending out of the primary filter tank (1) is fixedly installed on the near-ground end of the inclined primary filter screen (10). A gate valve (141) is fixedly installed on the sewage pipe (14). A primary filter cylinder (3), a middle filter cylinder (4), and a post-filter cylinder (5) are arranged on one side of the primary filter tank (1). The primary filter cylinder (3) and the primary filter tank (1) are connected by a pump (2) for water transfer. The primary filter cylinder (3) and the middle filter cylinder (4) are connected by a pump (2) for water transfer. The primary filter (3) and the secondary filter (4) are connected by an output pipe (31). The secondary filter (4) and the tertiary filter (5) are connected by a guide pipe (41). The primary filter (3) is provided with an inner fine sand layer (30). The secondary filter (4) is provided with a polypropylene packing layer (40). The tertiary filter (5) is detachably installed with a precision filter screen (51). The bottom ends of the primary filter (3), the secondary filter (4) and the tertiary filter (5) are all fixedly installed with vertical pipes (6). Valves (60) are fixedly installed on the vertical pipes (6).
2. The phosphate rock screening wastewater recycling treatment equipment according to claim 1, characterized in that: The inclined primary filter (10) is set at an upward tilt of 45 to 60 degrees, and the tilt angle of the drain pipe (14) is the same as the tilt angle of the inclined primary filter (10).
3. The phosphate rock screening wastewater recycling treatment equipment according to claim 1, characterized in that: A plurality of support rods (11) are fixedly installed between the inclined primary filter screen (10) and the bottom wall of the primary filter tank (1). The support rods (11) are columnar in shape.
4. The phosphate rock screening wastewater recycling treatment equipment according to claim 1, characterized in that: A sewage pipe (12) is provided above the inclined primary filter (10), and a sewage flow hood (13) is fixedly installed at the bottom end of the sewage pipe (12).
5. The phosphate rock screening wastewater recycling treatment equipment according to claim 1, characterized in that: The inlet end of the conveying pump (2) is fixedly installed with a rigid pipe (20), the end of the rigid pipe (20) is fixedly installed on the primary filter (1), and the outlet end of the conveying pump (2) is fixedly installed with an outlet pipe (23), which is inserted into the bottom center of the inner fine sand layer (30).
6. The phosphate rock screening wastewater recycling treatment equipment according to claim 5, characterized in that: The end of the rigid pipe (20) that enters the primary filter (1) is fixedly installed with a flexible tube (21), and a float plate (22) is fixedly installed at the top of the flexible tube (21). The float plate (22) is located inside the primary filter (1).
7. The phosphate rock screening wastewater recycling treatment equipment according to claim 1, characterized in that: The end of the output pipe (31) is inserted into the bottom center of the polypropylene packing layer (40). A mesh support plate (50) is fixedly installed on the inner wall of the rear filter cartridge (5). The precision filter screen (51) is detachably installed on the top surface of the mesh support plate (50).
8. The phosphate rock screening wastewater recycling treatment equipment according to claim 1, characterized in that: A cleaning pipe (15) is fixedly installed on the bottom side of the primary filter (1), and a manual valve (151) is fixedly installed on the cleaning pipe (15).