Wastewater treatment equipment for plastic particle production
By designing an inclined filter plate and a guide discharge plate structure, combined with a water pump and agitation components, the problems of filter plate clogging and wastewater overflow in plastic pellet production were solved, achieving stable and efficient wastewater treatment.
Patent Information
- Application Number
- CN202423282295.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During the production of plastic pellets, larger particles in the wastewater can easily accumulate on the filter plates, causing blockage and affecting filtration efficiency. Furthermore, the filtered wastewater lacks an effective recycling and treatment mechanism, which may lead to overflow and environmental pollution.
The filter plate is designed to be inclined, so that larger particles slide down to the guide discharge plate and are removed by the guide discharge plate. The wastewater is collected by the water receiving tray, water pump and return water pipe for further filtration, and then treated by mixing additives using the agitator.
To prevent filter plate clogging, ensure smooth filtration, avoid wastewater overflow, achieve a stable wastewater treatment process, and make rational use of water resources.
Smart Images

Figure CN223892515U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment equipment technology, and in particular to a wastewater treatment device for plastic pellet production. Background Technology
[0002] With the rapid development of the plastics industry, the demand for plastic pellet production is increasing daily. However, the production process generates a large amount of wastewater, which, if discharged directly without effective treatment, will cause serious environmental pollution. Therefore, efficient wastewater treatment equipment is needed to meet the environmental protection requirements of the plastic pellet production industry.
[0003] In wastewater treatment from plastic pellet production, larger particles in the wastewater of common filtration equipment tend to accumulate on the filter plates, causing blockage. As filtration continues, the blockage worsens, leading to reduced filtration efficiency and even affecting the normal operation of the entire wastewater treatment process. Furthermore, the lack of an effective recovery and treatment mechanism for wastewater that slips into other parts during filtration may result in overflows and adverse environmental impacts. To address this technical problem, this application proposes a wastewater treatment device for plastic pellet production. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wastewater treatment device for plastic granule production. By tilting the filter plate, large particles filtered out slide down to the guide discharge plate for removal, preventing filter plate blockage, ensuring smooth filtration, and facilitating overall process stability. At the same time, wastewater is collected through a water receiving pan, water pump, and return water pipe and then sent back to the filtration chamber for filtration, avoiding wastewater overflow and making rational use of water resources.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A wastewater treatment device for plastic granule production includes a treatment chamber, a filter chamber fixedly connected to the top side of the treatment chamber, a filter plate disposed on the inner wall of the middle section of the filter chamber, a guide discharge plate fixedly connected to the outer wall of the middle section of the filter chamber for discharging granules, a flow arc groove opened at the end of the guide discharge plate facing the filter chamber, a water receiving tray fixedly connected to the outer wall of the bottom section of the filter chamber, the water receiving tray being connected to the filter chamber via a return flow assembly, a flow guiding assembly disposed on the inner wall of the top section of the filter chamber for controlling the outflow direction of the wastewater, a stirring assembly disposed on the inner wall of the bottom section of the treatment chamber for stirring the wastewater, and a feeding assembly disposed on the outer wall of the treatment chamber for adding additives.
[0007] Furthermore, the flow guiding assembly includes a flow guiding hood fixedly connected to the inner wall of the top of the filter chamber, and an L-shaped guide tube fixedly connected to the bottom end of the flow guiding hood.
[0008] Furthermore, the return assembly includes a water pump disposed on the inner wall of the water receiving tray, and the water outlet of the water pump is connected to the top side of the filter chamber through a return water pipe.
[0009] Furthermore, the stirring assembly includes a stirring shaft rotatably connected to the inner wall at the bottom of the processing chamber, and a plurality of stirring blades are fixedly connected to the outer wall of the stirring shaft.
[0010] Furthermore, a motor is mounted on the bottom side of the processing chamber via a fixing frame, and the drive end of the motor is fixedly connected to the bottom end of the stirring shaft.
[0011] Furthermore, the feeding assembly includes a feeding pipe fixedly connected to the outer wall of the processing room, and a funnel is fixedly connected to the top end of the feeding pipe.
[0012] Furthermore, a water outlet pipe is fixedly connected to the bottom outer wall of the treatment chamber, and a water inlet pipe is fixedly connected to the top side of the filtration chamber.
[0013] Furthermore, multiple support columns are fixedly connected to the bottom side of the processing chamber.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, by designing the filter plate in an inclined state, larger particles filtered out of the wastewater can slide down the filter plate onto the guide discharge plate and be removed by the guide discharge plate, thus avoiding the accumulation of larger particles on the filter plate and preventing filter plate blockage. This ensures that the filtration of wastewater in the filtration chamber can be carried out continuously and smoothly, which helps the entire wastewater treatment process to operate stably.
[0016] 2. In this utility model, through components such as a water receiving tray, a water pump, and a return water pipe, when the water receiving tray collects a certain amount of wastewater that has slipped down due to filtration, the water pump can be used to transport the wastewater back to the filtration chamber for filtration again, thus avoiding wastewater overflow and causing damage to the surrounding environment. Attached Figure Description
[0017] Figure 1 This is a perspective view of a wastewater treatment device for plastic pellet production according to the present invention.
[0018] Figure 2 This is a schematic diagram of the treatment chamber structure of a wastewater treatment device for plastic pellet production proposed in this utility model.
[0019] Figure 3 for Figure 2 Enlarged view of point A in the image.
[0020] Legend:
[0021] 1. Processing chamber; 2. Filtration chamber; 3. Inlet pipe; 4. Return pipe; 5. Water receiving tray; 6. Guide discharge plate; 7. Flow arc groove; 8. Filter plate; 9. Feeding pipe; 10. Water outlet pipe; 11. Stirring shaft; 12. Motor; 13. Flow guide cover; 14. L-shaped guide pipe; 15. Water pump. Detailed Implementation
[0022] 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.
[0023] Reference Figures 1-3 This utility model provides an embodiment of a wastewater treatment device for plastic granule production, comprising a treatment chamber 1, a filter chamber 2 fixedly connected to the top side of the treatment chamber 1, a filter plate 8 disposed on the inner wall of the middle end of the filter chamber 2, a guide discharge plate 6 fixedly connected to the outer wall of the middle end of the filter chamber 2 for discharging granules, a water flow arc groove 7 opened at one end of the guide discharge plate 6 facing the filter chamber 2, a water receiving tray 5 fixedly connected to the outer wall of the bottom end of the filter chamber 2, and a water pump 15 disposed on the inner wall of the water receiving tray 5, the water pump 15 discharging water. The end is connected to the top side of the filter chamber 2 via the return water pipe 4. The guide hood 13 is fixedly connected to the inner wall of the top of the filter chamber 2. The bottom end of the guide hood 13 is fixedly connected to an L-shaped guide pipe 14 to control the outlet direction of the wastewater. The stirring shaft 11 is rotatably connected to the inner wall of the bottom of the treatment chamber 1. Multiple stirring blades are fixedly connected to the outer wall of the stirring shaft 11 to stir the wastewater. The feeding pipe 9 is fixedly connected to the outer wall of the treatment chamber 1. The top end of the feeding pipe 9 is fixedly connected to a funnel to add additives.
[0024] Specifically, wastewater from plastic pellet production enters filter chamber 2 through inlet pipe 3. Inside filter chamber 2, the wastewater flows through guide hood 13 and L-shaped guide pipe 14 to the rear of filter plate 8. Filter plate 8 filters larger particles in the wastewater, and the filtered wastewater flows into treatment chamber 1. Because filter plate 8 is tilted, larger particles slide down onto guide discharge plate 6, which then removes them, preventing them from accumulating and clogging the filter plate 8. During this process, some wastewater may slide onto guide discharge plate 6, which then flows through flow arc trough 7 into water collection tray 5 for collection. When a certain amount of wastewater is stored in water collection tray 5, water pump 15 can be activated to return the wastewater to filter chamber 2 through return pipe 4 for further filtration, preventing wastewater overflow and environmental impact. Meanwhile, the filtered wastewater falls into treatment chamber 1. Then, coagulant, flocculant aid, and other solvents are added to the wastewater inside treatment chamber 1 through feeding pipe 9. Then, motor 12 is started to control the rotation of stirring shaft 11 to stir and mix the wastewater and solvents, thereby treating the wastewater. The treated wastewater is finally discharged through effluent pipe 10.
[0025] Reference Figures 1-3 A motor 12 is mounted on the bottom side of the treatment chamber 1 via a fixed frame. The drive end of the motor 12 is fixedly connected to the bottom end of the stirring shaft 11. A water outlet pipe 10 is fixedly connected to the outer wall of the bottom end of the treatment chamber 1. A water inlet pipe 3 is fixedly connected to the top side of the filter chamber 2. Multiple support columns are fixedly connected to the bottom side of the treatment chamber 1.
[0026] Specifically, the rotation of the stirring shaft 11 can be controlled by the motor 12 to achieve mixing between the solvent and wastewater. Wastewater is added to the wastewater treatment device and the treated wastewater is discharged through the outlet pipe 10 and the inlet pipe 3. The wastewater treatment device is supported by the support column.
[0027] Working principle: Wastewater from plastic granule production enters the filter chamber 2 through the inlet pipe 3, and falls to the rear of the filter plate 8 through the guide hood 13 and L-shaped guide pipe 14. The filter plate 8 filters out larger particles in the wastewater before it flows into the treatment chamber 1. Due to the inclination of the filter plate 8, larger particles slide onto the guide discharge plate 6, which then removes the filtered larger particles. During this process, wastewater may slide onto the guide discharge plate 6, and the wastewater that falls onto the guide discharge plate 6 flows through the arc trough. 7. The wastewater falls into the water receiving pan 5 and is collected. When the water receiving pan 5 stores a certain amount of wastewater, the wastewater can be pumped through the return water pipe 4 to the filter chamber 2 for filtration. The filtered wastewater will fall into the treatment chamber 1. Coagulant, coagulant aid and other solvents are added to the wastewater in the treatment chamber 1 through the feeding pipe 9. The stirring shaft 11 is rotated by the motor 12 to stir and mix the wastewater and solvents, thereby treating the wastewater. The treated wastewater is then discharged through the outlet pipe 10.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wastewater treatment device for plastic pellet production, characterized in that, The system includes a treatment chamber (1), a filter chamber (2) fixedly connected to the top side of the treatment chamber (1), a filter plate (8) provided on the inner wall of the middle end of the filter chamber (2), a guide discharge plate (6) fixedly connected to the outer wall of the middle end of the filter chamber (2) for discharging particles, a water flow arc groove (7) opened at one end of the guide discharge plate (6) facing the filter chamber (2), a water receiving tray (5) fixedly connected to the outer wall of the bottom end of the filter chamber (2), the water receiving tray (5) being connected to the filter chamber (2) through a return assembly, a flow guiding assembly provided on the inner wall of the top end of the filter chamber (2) for controlling the direction of wastewater discharge, a stirring assembly provided on the inner wall of the bottom end of the treatment chamber (1) for stirring the wastewater, and a feeding assembly provided on the outer wall of the treatment chamber (1) for adding additives.
2. The wastewater treatment equipment for plastic pellet production according to claim 1, characterized in that: The flow guiding assembly includes a flow guiding hood (13) fixedly connected to the inner wall of the top of the filter chamber (2), and an L-shaped guide tube (14) fixedly connected to the bottom end of the flow guiding hood (13).
3. The wastewater treatment equipment for plastic pellet production according to claim 1, characterized in that: The return assembly includes a water pump (15) installed on the inner wall of the water receiving pan (5), and the outlet of the water pump (15) is connected to the top side of the filter chamber (2) through a return water pipe (4).
4. The wastewater treatment equipment for plastic pellet production according to claim 1, characterized in that: The stirring assembly includes a stirring shaft (11) rotatably connected to the inner wall of the bottom end of the processing chamber (1), and a plurality of stirring blades are fixedly connected to the outer wall of the stirring shaft (11).
5. The wastewater treatment equipment for plastic pellet production according to claim 4, characterized in that: A motor (12) is mounted on the bottom side of the processing chamber (1) via a fixing frame, and the drive end of the motor (12) is fixedly connected to the bottom end of the stirring shaft (11).
6. The wastewater treatment equipment for plastic pellet production according to claim 1, characterized in that: The feeding assembly includes a feeding pipe (9) fixedly connected to the outer wall of the processing chamber (1), and a funnel is fixedly connected to the top end of the feeding pipe (9).
7. The wastewater treatment equipment for plastic pellet production according to claim 1, characterized in that: The bottom outer wall of the treatment chamber (1) is fixedly connected to a water outlet pipe (10), and the top side of the filter chamber (2) is fixedly connected to a water inlet pipe (3).
8. The wastewater treatment equipment for plastic pellet production according to claim 1, characterized in that: The bottom side of the processing chamber (1) is fixedly connected to multiple support columns.