Printing and dyeing wastewater treatment equipment
By increasing pressure through piston hydraulic pressure and intermittently moving to peel off objects from the surface of the filter element, the problem of filter element clogging in dyeing and printing wastewater treatment equipment is solved, thereby improving treatment efficiency and flow rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ECOLOGICAL CITY CONSTR DESIGN INST CO LTD
- Filing Date
- 2025-02-27
- Publication Date
- 2026-05-01
AI Technical Summary
In traditional dyeing and printing wastewater treatment equipment, the unidirectional pressure provided by the water pump makes the filter element easily clogged by flexible objects such as cloth strips, affecting filtration efficiency and possibly even causing complete blockage.
The dyeing and printing wastewater is pressurized by a piston hydraulic system. The intermittent forward and backward movement of the piston increases the pressure and peels off the flexible objects attached to the surface of the filter element, thus preventing clogging.
It improves the flow rate and efficiency of dyeing and printing wastewater treatment, prevents filter cartridge clogging, and maintains filtration effect.
Smart Images

Figure CN224180358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a dyeing and printing wastewater treatment device. Background Technology
[0002] The large volume of wastewater discharged from dyeing and printing industries is traditionally treated by using a water pump to pressurize the wastewater before it passes through a filter. Solid impurities are trapped by the filter, and only purified water passes through. However, the pressure achievable with a water pump is limited by the pump motor and cannot be very high. This can cause fabric shavings and other debris in the wastewater to clog the filter, affecting its filtration efficiency and potentially causing complete blockage. In particular, the water pump can only provide continuous pressure in one direction, which only exacerbates the adhesion of fabric shavings to the filter surface.
[0003] Therefore, in order to solve the above-mentioned technical problems, this utility model provides a dyeing and printing wastewater treatment device. Utility Model Content
[0004] The purpose of this invention is to provide a dyeing and printing wastewater treatment device. By using a piston as a hydraulic means to pressurize the dyeing and printing wastewater, the pressure is high enough to ensure that the flow rate of the wastewater through the filter element is large enough, thus improving the treatment efficiency. At the same time, by intermittently moving the piston forward and backward (especially the backward movement), flexible objects such as cloth strips attached to the surface of the filter element can be peeled off, preventing the flexible objects from clogging the filter element and reducing the filtration effect of the filter element (or even completely clogging it).
[0005] To achieve the above objectives, this utility model employs the following technical solution:
[0006] This utility model provides a dyeing and printing wastewater treatment device, which includes:
[0007] frame;
[0008] The power mechanism is mounted on the frame;
[0009] A cleaning tank is fixed to the frame;
[0010] Supporting institutions;
[0011] The piston is supported by the frame through the support mechanism. Driven by the power mechanism, the piston can reciprocate within the cleaning cylinder. A one-way air inlet valve is provided at the end of the cleaning cylinder away from the piston. The one-way air inlet valve opens when the piston retracts and closes when the piston moves forward.
[0012] The filter element is installed inside the cleaning tank;
[0013] A clean water pipe is installed at the end of the cleaning cylinder furthest from the piston;
[0014] A wastewater pipe is installed in the cleaning tank and located between the filter element and the piston.
[0015] Furthermore, the power mechanism includes:
[0016] Electric motor;
[0017] The hydraulic pump is driven by the electric motor;
[0018] Hydraulic cylinder;
[0019] A hydraulic pipe is connected between the hydraulic pump and the hydraulic cylinder, and is configured to: pump hydraulic oil from the hydraulic pump into the hydraulic cylinder to drive the piston forward, and pump hydraulic oil from the hydraulic cylinder back to the hydraulic pump to drive the piston backward.
[0020] Furthermore, it also includes a control box, which is connected to the control terminal of the hydraulic pump via a signal connection.
[0021] Furthermore, the support mechanism includes:
[0022] A sliding frame having a support portion fitted over the piston to support the piston upward and guide the movement of the piston;
[0023] Rollers are rotatably mounted on the sliding frame;
[0024] A guide rod is fixed to the frame, and the sliding frame is movably mounted on the guide rod by means of the rollers rolling along the guide rod.
[0025] Furthermore, the cleaning tank has an opening with a central angle of not less than 180° to provide space for the filter element to be installed and removed, and the inner wall of the cleaning tank has a limiting protrusion to restrict the axial movement of the filter element.
[0026] Furthermore, it also includes:
[0027] A sealing ring is provided, wherein the cleaning tank and the filter element together form an annular sealing groove, and the sealing ring is fitted inside the sealing groove.
[0028] A locking clamp is detachably installed on the outside of the sealing ring and seals the sealing groove by compressing the sealing ring to deform it.
[0029] Furthermore, the water purification pipe is equipped with a water purification pipe valve.
[0030] Furthermore, the sewage pipe is installed at the bottom of the cleaning tank.
[0031] The beneficial effects of this utility model are as follows:
[0032] The hydraulic pressure applied to the dyeing and printing wastewater by the piston ensures sufficient flow of the wastewater through the filter element, thus improving treatment efficiency. At the same time, the intermittent forward and backward movement of the piston (especially the backward movement) can peel off flexible objects such as cloth strips attached to the surface of the filter element, preventing them from clogging the filter element and reducing its filtration effect (or even completely blocking it). Attached Figure Description
[0033] Figure 1 A first-view perspective three-dimensional structural schematic diagram of an embodiment of a dyeing and printing wastewater treatment device;
[0034] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure from a second-person perspective;
[0035] Figure 3 for Figure 1 Top view;
[0036] Figure 4 for Figure 3 Sectional view of mid-section AA;
[0037] Figure 5 for Figure 4 A magnified view of the central region Z. Attached image description:
[0039] 1. Rack;
[0040] 2. Power mechanism; 21. Control box; 22. Electric motor; 23. Hydraulic pump; 24. Hydraulic pipe; 25. Hydraulic cylinder;
[0041] 31. Cleaning tank; 311. Opening; 312. Sealing groove; 32. Piston; 33. Support mechanism; 331. Sliding frame; 332. Roller; 333. Guide rod; 34. Support plate;
[0042] 41. Filter element; 42. Sealing ring; 43. Locking clamp;
[0043] 51. Water purification pipe; 52. Valve;
[0044] 6. Sewage pipe. Detailed Implementation
[0045] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0046] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0047] This utility model discloses a dyeing and printing wastewater treatment device. See [link to relevant documentation]. Figures 1 to 5 It includes:
[0048] Rack 1;
[0049] Power mechanism 2 is mounted on the frame 1;
[0050] The cleaning tank 31 is fixed to the frame 1;
[0051] Supporting structure 33;
[0052] Piston 32 is supported by frame 1 via support mechanism 33. Driven by power mechanism 2, piston 32 is reciprocated within cleaning cylinder 31. One-way air intake valve is provided at the end of cleaning cylinder 31 away from piston 32. The one-way air intake valve opens when piston 32 retracts and closes when piston 32 moves forward.
[0053] Filter element 41 is installed inside the cleaning tank 31;
[0054] A water purification pipe 51 is installed at the end of the cleaning tank 31 away from the piston 32;
[0055] Wastewater pipe 6 is installed in the cleaning tank 31 and is located between the filter element 41 and the piston 32.
[0056] The dyeing wastewater is pressurized by the piston 32 using hydraulic pressure. Sufficient pressure ensures a large flow rate of wastewater through the filter element 41, improving treatment efficiency. Simultaneously, the intermittent forward and backward movement of the piston 32 (especially the backward movement) removes flexible materials such as fabric strips adhering to the surface of the filter element 41, preventing blockage and reducing its filtration effect (or even complete clogging). Filtered clean water flows out from the clean water pipe 51, while wastewater trapped by the filter element 41 flows out from the wastewater pipe 6.
[0057] One specific form of the power mechanism 2, see [link to previous document] Figure 1 and Figure 2 It includes:
[0058] Electric motor 22;
[0059] Hydraulic pump 23 is driven by electric motor 22;
[0060] Hydraulic cylinder 25;
[0061] A hydraulic pipe 24 connects the hydraulic pump 23 and the hydraulic cylinder 25, and is configured to: pump hydraulic oil from the hydraulic pump 23 into the hydraulic cylinder 25 to drive the piston 32 forward, and pump hydraulic oil from the hydraulic cylinder 25 back to the hydraulic pump 23 to drive the piston 32 backward. An electric motor 22 drives the hydraulic pump 23, and the hydraulic oil (or hydraulic return oil) generated by the hydraulic pump 23 flows through the hydraulic pipe 24 to the hydraulic cylinder 25, thereby driving the piston 32 in linear motion. This allows the piston 32 to move linearly within the cleaning cylinder 31, increasing the output force through hydraulic means.
[0062] This utility model embodiment may also include a control box 2, see further details. Figure 1 and Figure 2 The control box 2 is connected to the control terminal of the hydraulic pump 23 via a signal connection. The control box 2 controls the forward and reverse rotation of the motor 22, or controls the oil valve installed between the hydraulic pump 23 and the oil pipe to control the oil supply or return, thereby enabling the piston 32 to move forward or backward.
[0063] One structure of support mechanism 33, see further. Figure 1 and Figure 2 It includes:
[0064] The sliding frame 331 has a support portion sleeved on the piston 32 to support the piston 32 upward and guide the movement of the piston 32;
[0065] Roller 332 is rotatably mounted on the sliding frame 331;
[0066] The guide rod 333 is fixed to the frame 1, and the sliding bracket 331 is movably mounted on the guide rod 333 via the roller 332 rolling along the guide rod 333. By moving the sliding bracket 331, the piston 32 can be well supported regardless of the change in its extension length.
[0067] See also Figure 4 and Figure 5 Considering the replacement of filter element 41, the cleaning cylinder 31 has an opening 311 with a central angle of not less than 180° to provide space for the filter element 41 to be installed and removed. The inner wall of the cleaning cylinder 31 has a limiting protrusion to restrict the axial movement of the filter element 41.
[0068] Considering the sealing of opening 311, see [link to previous section] Figure 4 and Figure 5 The embodiments of this utility model may further include:
[0069] The sealing ring 42, together with the cleaning cylinder 31 and the filter element 41, forms an annular sealing groove 312, and the sealing ring 42 is fitted inside the sealing groove 312;
[0070] A locking clamp 43 is detachably installed on the outside of the sealing ring 42, and the sealing groove 312 is sealed by compressing the sealing ring 42 to deform it.
[0071] Additionally, the purified water pipe 51 is equipped with a purified water pipe valve 52. Furthermore, the wastewater pipe 6 is installed at the bottom of the cleaning tank 31. The cleaning tank 31 is supported by a support plate 34 between it and the frame 1.
[0072] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A dyeing and printing wastewater treatment device, characterized in that, include: frame; The power mechanism is mounted on the frame; A cleaning tank is fixed to the frame; Supporting institutions; The piston is supported by the frame through the support mechanism. Driven by the power mechanism, the piston can reciprocate within the cleaning cylinder. A one-way air inlet valve is provided at the end of the cleaning cylinder away from the piston. The one-way air inlet valve opens when the piston retracts and closes when the piston moves forward. The filter element is installed inside the cleaning tank; A clean water pipe is installed at the end of the cleaning cylinder furthest from the piston; A wastewater pipe is installed in the cleaning tank and located between the filter element and the piston.
2. The printing and dyeing wastewater treatment equipment according to claim 1, characterized in that, The power mechanism includes: Electric motor; The hydraulic pump is driven by the electric motor; Hydraulic cylinder; A hydraulic pipe is connected between the hydraulic pump and the hydraulic cylinder, and is configured to: pump hydraulic oil from the hydraulic pump into the hydraulic cylinder to drive the piston forward, and pump hydraulic oil from the hydraulic cylinder back to the hydraulic pump to drive the piston backward.
3. The printing and dyeing wastewater treatment equipment according to claim 2, characterized in that, It also includes a control box, which is connected to the control terminal of the hydraulic pump via a signal connection.
4. The printing and dyeing wastewater treatment equipment according to claim 1, characterized in that, The supporting structure includes: A sliding frame having a support portion fitted over the piston to support the piston upward and guide the movement of the piston; Rollers are rotatably mounted on the sliding frame; A guide rod is fixed to the frame, and the sliding frame is movably mounted on the guide rod by means of rollers rolling along the guide rod.
5. The dyeing and printing wastewater treatment equipment according to claim 1, characterized in that, The cleaning tank has an opening with a central angle of not less than 180° to provide space for the filter element to be installed and removed. The inner wall of the cleaning tank has a limiting protrusion to restrict the axial movement of the filter element.
6. A printing and dyeing wastewater treatment apparatus according to claim 4, wherein Also includes: A sealing ring is provided, wherein the cleaning tank and the filter element together form an annular sealing groove, and the sealing ring is fitted inside the sealing groove. A locking clamp is detachably installed on the outside of the sealing ring and seals the sealing groove by compressing the sealing ring to deform it.
7. The printing and dyeing wastewater treatment equipment according to claim 1, characterized in that, The water purification pipe is equipped with a water purification pipe valve.
8. The printing and dyeing wastewater treatment equipment according to claim 1, characterized in that, The sewage pipe is installed at the bottom of the cleaning tank.