Efficient membrane separation type wastewater treatment device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an efficient membrane separation type wastewater treatment device which comprises a support, a membrane separation unit and a pretreatment unit are arranged on the inner side and the outer side of the support respectively, the pretreatment unit is communicated with the membrane separation unit, and the pretreatment unit is used for pre-filtering wastewater; wherein the pretreatment unit comprises a cylinder part, a filter part and a cleaning part are arranged in the cylinder part, the cleaning part is sleeved with the filter part through a connecting assembly, large-particle impurities contained in wastewater can be pre-filtered through the arrangement of the pretreatment unit, and the wastewater filtering efficiency is further improved; the cleaning part cleans impurities adhering to the inner wall and the outer wall of the filter part while reciprocating, the situation that the filter part is inconvenient to clean and affects the wastewater treatment efficiency is prevented, and the first cleaning part and the second cleaning part can be detached and replaced after long-time use.

Description

A high-efficiency membrane separation wastewater treatment device Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a high-efficiency membrane separation wastewater treatment device. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater generated from industrial production, domestic activities, and other activities through a series of physical, chemical, biological, or combined methods, in order to reduce or eliminate pollutants in the wastewater, protect the environment, and achieve the recycling of water resources.

[0003] In wastewater treatment, ultrafiltration and reverse osmosis membrane filtration can be used to further improve the filtration efficiency of COD content in wastewater. For example, the prior art Chinese patent announcement number "CN222574405U" discloses a high-efficiency membrane separation wastewater treatment device, including: a main unit, including a base, on which a filter tank, a filter cylinder, and an adsorption cylinder are fixedly connected; an operating unit, including a cylindrical filter membrane, with a cover plate fixedly connected to the bottom of the filter cylinder, a riser pipe fixedly connected between the cylindrical filter membrane and the cover plate, a water conveying assembly between the filter tank, the filter cylinder, and the adsorption cylinder, a water conveying pipe on the right side of the filter cylinder, multiple nozzles fixedly connected to the filter cylinder, a rotating assembly between the cylindrical filter membrane and the filter cylinder, a driving assembly between the water conveying pipe and the rotating assembly, and a sewage discharge assembly and a water pumping assembly respectively on the filter cylinder and the adsorption cylinder. This invention uses a water supply pipe to inject water, which is then sprayed out through a nozzle to rinse the cylindrical filter membrane. As the water flows through the water supply pipe, the cylindrical filter membrane rotates, resulting in a more thorough rinsing and ensuring the water purification efficiency of the device.

[0004] In practice, wastewater is pre-filtered by filter plates installed in the filter tank. However, after a long period of use, it is not convenient to clean and replace the filter plates, which can easily lead to clogging of the filter pores and affect normal use. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of cleaning and replacing filter plates, and to propose a high-efficiency membrane separation wastewater treatment device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency membrane separation wastewater treatment device is designed, including a support frame. A membrane separation unit and a pretreatment unit are respectively provided on the inner and outer sides of the support frame. The pretreatment unit is connected to the membrane separation unit and is used to pre-filter the wastewater.

[0008] The pretreatment unit includes a cylindrical component, within which a filter element and a cleaning element are disposed. The cleaning element is sleeved inside the filter element via a connecting assembly, which drives the cleaning element to reciprocate to clean the inner and outer walls of the filter element. The cleaning element is detachably connected to the connecting assembly.

[0009] Furthermore, the top of the cylindrical component is threaded with an end cap, which is used to fix the filter element. A stepped portion is provided at the bottom of the inner wall of the cylindrical component, and the bottom end of the filter element abuts against the stepped portion through a sealing gasket.

[0010] Furthermore, the cleaning component includes a first cleaning part and a second cleaning part. The first cleaning part is fixedly connected to a rubber component on its periphery, and it slides against the inner wall of the filter component through the rubber component. The first cleaning part is also provided with multiple water inlet grooves that connect both sides.

[0011] Furthermore, the connecting assembly includes a support arm, which is placed between the end cap and the filter element. A first support rod is fixedly connected to the midpoint of the bottom of the support arm, and second support rods are fixedly connected to both sides of the first support rod.

[0012] The free end of the first support rod is threaded through the filter element and connected to the midpoint of the first cleaning part.

[0013] Furthermore, a baffle and a protrusion are provided at the free end of the second support rod, and the free end of the second support rod passes through the protrusion to form a deformation groove.

[0014] Furthermore, a second cleaning part is sleeved around the filter element. The second cleaning part has a pair of through holes. The protrusion passes through the through holes by abutting deformation and engages with the second cleaning part. The second cleaning part abuts against the baffle.

[0015] The present invention proposes a high-efficiency membrane separation wastewater treatment device, which has the following advantages: the pretreatment unit can pre-filter large particulate impurities in the wastewater, reducing the filtration pressure of the membrane separation unit and effectively extending the service life of the membrane separation unit, thereby further improving the wastewater filtration efficiency. In addition, the connecting component can drive the cleaning component to move back and forth. While the cleaning component moves back and forth, it cleans the impurities adhering to the inner and outer walls of the filter element, preventing the filter element from being difficult to clean and affecting the wastewater treatment efficiency. After long-term use, the first and second cleaning components can be disassembled and replaced by rotating and unlocking the protrusion. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of this utility model;

[0017] Figure 2 is a cross-sectional view of the pretreatment unit of this utility model;

[0018] Figure 3 is a schematic diagram of the enlarged structure of region A in Figure 2;

[0019] Figure 4 is a structural schematic diagram of the connecting component of this utility model;

[0020] Figure 5 is a magnified schematic diagram of area B in Figure 4.

[0021] In the figure: 1. Support; 2. Membrane separation unit; 3. Pretreatment unit; 31. Cylinder; 311. Stepped section; 32. Filter element; 33. First cleaning section; 34. Second cleaning section; 341. Through hole; 4. Connecting assembly; 41. Support arm; 42. First support rod; 43. Second support rod; 44. Baffle; 45. Protrusion; 46. Deformation groove; 5. End cap. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Referring to Figures 1-5, a high-efficiency membrane separation wastewater treatment device includes a support 1. A membrane separation unit 2 and a pretreatment unit 3 are respectively provided on the inner and outer sides of the support 1. The pretreatment unit 3 is connected to the membrane separation unit 2 and is used to pre-filter the wastewater.

[0024] The pretreatment unit 3 includes a cylindrical component 31, within which a filter element 32 and a cleaning element are provided. The cleaning element is sleeved inside the filter element 32 via a connecting component 4. The connecting component 4 is used to drive the cleaning element to reciprocate to clean the inner and outer walls of the filter element 32. The cleaning element is detachably connected to the connecting component 4.

[0025] In some embodiments, the membrane separation unit 2 is an ultrafiltration and reverse osmosis membrane device in the prior art. The pretreatment unit 3 can filter large particulate impurities in the wastewater through the filter element 32, which is beneficial to extend the service life of the membrane separation unit 2 and further improve the separation efficiency of wastewater.

[0026] Furthermore, the top of the cylindrical component 31 is threaded with an end cap 5, which is used to fix the filter element 32. A stepped portion 311 is provided at the bottom of the inner wall of the cylindrical component 31, and the bottom end of the filter element 32 abuts against the stepped portion 311 through a sealing gasket.

[0027] It should be added that a sealing gasket is also provided between the end cap 5 and the cylinder 31 to improve the sealing performance of the cylinder 31 and prevent wastewater from overflowing. Furthermore, the outer wall of the cylinder 31 has a water outlet pipe connected to the membrane separation unit 2, and the bottom of the cylinder 31 is connected to the wastewater supply device. Furthermore, after the wastewater is filtered by the filter element 32, it enters the membrane separation unit 2 through the water outlet pipe for more detailed filtration.

[0028] Furthermore, the cleaning component includes a first cleaning part 33 and a second cleaning part 34. The first cleaning part 33 is fixedly connected to a rubber component, which is attached to and slides against the inner wall of the filter component 32 through the rubber component. The first cleaning part 33 is also provided with multiple water inlet grooves that connect the two sides.

[0029] More specifically, the connecting assembly 4 includes a support arm 41, which is placed between the end cap 5 and the filter element 32. A first support rod 42 is fixedly connected to the midpoint of the bottom of the support arm 41, and second support rods 43 are fixedly connected to both sides of the first support rod 42.

[0030] The free end of the first support rod 42 is threaded through the filter element 32 and connected to the midpoint of the first cleaning part 33.

[0031] In this embodiment, after the end cap 5 is unlocked, the filter element 32 is pressed, and the first cleaning part 33 and the second cleaning part 34 are driven to slide through the support arm 41. The first cleaning part 33 and the second cleaning part 34 are respectively used to clean the impurities adhering to the inner and outer walls of the filter element 32.

[0032] Specifically, the second cleaning section 34 can also be attached to the inner wall of the cylinder 31, thereby cleaning the inner wall of the cylinder 31. After cleaning, the impurities are discharged by water flushing. Of course, at this time, the cylinder 31 can be disconnected from the membrane separation unit 2.

[0033] The filter element 32 has a cylindrical structure with several sets of filter holes evenly distributed around its periphery, and the bottom of the filter element 32 is also provided with an opening.

[0034] In general, the free end of the second support rod 43 is provided with a baffle 44 and a protrusion 45, and the free end of the second support rod 43 passes through the protrusion 45 to form a deformation groove 46.

[0035] Finally, the second cleaning part 34 is sleeved around the filter element 32. The second cleaning part 34 has a pair of through holes 341. The protrusion 45 passes through the through holes 341 by abutting deformation and engages with the second cleaning part 34. The second cleaning part 34 abuts against the baffle 44.

[0036] In this embodiment, the second support rod 43 is preferably made of a material with deformation capability such as rubber or plastic. The protrusion 45 is deformed by contact with the through hole 341 under the action of the deformation groove 46, and after the protrusion 45 recovers its deformation, it is fixed to the second cleaning part 34 with the baffle 44.

[0037] Specifically, both the first cleaning section 33 and the second cleaning section 34 can be disassembled and replaced.

[0038] It is worth mentioning that the second cleaning section 34 is also equipped with rubber parts on both the inner and outer sides.

[0039] Working method: During operation, the filter element 32 is placed inside the cylinder 31, and the end cap 5 is closed to fix the filter element 32. After fixing, the water supply device injects wastewater into the cylinder 31. The wastewater is filtered by the filter element 32 and then transported to the membrane separation unit 2 through the water outlet pipe.

[0040] After unlocking the end cap 5, while pressing the filter element 32, the first cleaning part 33 and the second cleaning part 34 are driven to reciprocate through the support arm 41, thereby cleaning the inner and outer walls of the filter element 32.

[0041] Finally, remove the filter element 32, disassemble and replace the first cleaning part 33 by rotating it, and then simultaneously squeeze the pair of protrusions 45 inward to deform them, so that the second cleaning part 34 can be disassembled, cleaned and replaced.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency membrane separation wastewater treatment device, comprising a support frame (1), characterized in that: A membrane separation unit (2) and a pretreatment unit (3) are respectively provided on the inner and outer sides of the support (1). The pretreatment unit (3) is connected to the membrane separation unit (2) and is used to pre-filter wastewater. The pretreatment unit (3) includes a cylindrical part (31). A filter element (32) and a cleaning element are provided inside the cylindrical part (31). The cleaning element is sleeved inside the filter element (32) through a connecting component (4). The connecting component (4) is used to drive the cleaning element to move back and forth to clean the inner and outer walls of the filter element (32). The cleaning element is detachably connected to the connecting component (4).

2. The high-efficiency membrane separation wastewater treatment device according to claim 1, characterized in that: The top of the cylindrical component (31) is threaded with an end cap (5), which is used to fix the filter element (32). A stepped portion (311) is provided at the bottom of the inner wall of the cylindrical component (31), and the bottom end of the filter element (32) abuts against the stepped portion (311) through a sealing gasket.

3. The high-efficiency membrane separation wastewater treatment device according to claim 2, characterized in that: The cleaning component includes a first cleaning part (33) and a second cleaning part (34). The first cleaning part (33) is fixedly connected to a rubber component, which is attached to and slides against the inner wall of the filter component (32) through the rubber component. The first cleaning part (33) is also provided with multiple water inlet grooves that connect the two sides.

4. The high-efficiency membrane separation wastewater treatment device according to claim 3, characterized in that: The connecting assembly (4) includes a support arm (41) which is placed between the end cap (5) and the filter element (32). A first support rod (42) is fixedly connected at the midpoint of the bottom of the support arm (41), and a second support rod (43) is fixedly connected on both sides of the first support rod (42). The free end of the first support rod (42) passes through the filter element (32) and is threadedly connected to the midpoint of the first cleaning part (33).

5. The high-efficiency membrane separation wastewater treatment device according to claim 4, characterized in that: A baffle (44) and a protrusion (45) are provided at the free end of the second support rod (43), and the free end of the second support rod (43) passes through the protrusion (45) to form a deformation groove (46).

6. The high-efficiency membrane separation wastewater treatment device according to claim 5, characterized in that: The second cleaning part (34) is sleeved around the filter element (32). The second cleaning part (34) has a pair of through holes (341). The protrusion (45) passes through the through holes (341) by abutting deformation and engages with the second cleaning part (34). The second cleaning part (34) abuts against the baffle (44).

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