Device for treating printing and dyeing wastewater through ceramic flat sheet membrane

Abstract

The utility model relates to the technical field of printing wastewater treatment, and discloses a device for treating printing and dyeing wastewater through a ceramic flat sheet membrane, which comprises an outer shell, the inner top wall of the outer shell is fixedly connected with an inner shell, the upper part of one side of the outer shell is fixedly connected with a water inlet pipe, and the front ends of a plurality of connecting plates penetrate through a chute and are rotationally connected with threaded rods; the rear ends of the multiple threaded rods penetrate into the connecting plate and are in threaded connection with moving plates, the two sides of the rear walls of the multiple moving plates are fixedly connected with inserting rods, inserting holes are formed in the upper portions and the lower portions of the two sides of the multiple sliding grooves, the multiple inserting holes are formed in the front wall of the shell, and the rear ends of the multiple inserting rods penetrate into the inserting holes. According to the sewage treatment device disclosed by the utility model, under the combined action of the threaded rod, the moving plate, the inserting rod, the ceramic membrane, the outer shell and the sliding chute, the position of the bottom plate can be limited and positioned when the ceramic membrane is inserted into the inner shell and the bottom plate or pulled out of the inner shell and the bottom plate, so that the bottom plate is prevented from being pushed to move under the action of sewage pressure.

Description

Technical Field

[0001] This utility model relates to the field of printing wastewater treatment technology, and in particular to a device for treating printing and dyeing wastewater using a ceramic flat sheet membrane. Background Technology

[0002] Ceramic flat sheet membranes are a type of high-efficiency membrane material used in water treatment. They are widely used in fields such as dyeing and printing wastewater treatment and wastewater reuse. Ceramic flat sheet membranes have excellent mechanical strength, temperature resistance and chemical stability, making them very suitable for treating complex wastewater containing organic matter, dyes, salts and suspended solids, especially wastewater commonly found in the dyeing and printing industry.

[0003] A search revealed Chinese Patent Publication No. CN221662669U, which discloses a flat-plate ceramic membrane wastewater filtration treatment device, relating to the field of wastewater filtration treatment. The device includes a treatment tank, a flat-plate filter assembly, and a sealing assembly. The treatment tank has an inlet and an outlet on its outer side. The flat-plate filter assembly is installed inside the treatment tank and includes an upper mounting plate. A ceramic filter plate is connected to the lower end of the mounting plate via a connecting block. A sealing plate is connected to the outer side of the ceramic filter plate. The ceramic filter plate includes an outer frame, and a ceramic membrane plate is connected to the inner side of the outer frame. A seepage hole is provided at the lower end of the outer frame. The sealing assembly is installed inside the treatment tank and located below the flat-plate filter assembly. This invention solves the problems of low efficiency and the inability to disassemble and clean the flat-plate ceramic membrane during the filtration process in existing flat-plate ceramic membrane filtration devices.

[0004] However, in this device, the sealing block is reset only by spring pushing it after the ceramic filter plate is pulled out. Due to the lack of a limiting positioning structure, when the wastewater pressure inside the device is too high, the spring cannot ensure that the sealing block is tightly sealed against the partition. At the same time, when the ceramic filter plate is installed, it will push the sealing block down and drive the end block down to compress the spring. Since the spring is between the end block and the partition, the end block cannot be locked onto the top wall of the partition. Therefore, the sealing performance relying on the sliding rod and the partition is poor, so the actual use effect of this device is poor. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a device for treating dyeing and printing wastewater using a ceramic flat sheet membrane, aiming to improve the problem in the prior art that lacks a limiting positioning structure and cannot ensure that the sealing block tightly seals against the partition.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a device for treating dyeing and printing wastewater using ceramic flat sheet membranes, comprising an outer shell, an inner shell fixedly connected to the top wall of the outer shell, an inlet pipe fixedly connected to the upper part of one side of the outer shell, the inlet pipe communicating with the inner shell, an outlet pipe communicating with the lower part of the other side of the outer shell, multiple ceramic membranes slidably connected to the top wall of the outer shell, the bottom ends of the multiple ceramic membranes sequentially penetrating the top wall of the outer shell and the bottom wall of the inner shell and being provided with a base plate, connecting plates fixedly connected to the front side of the top wall of the multiple base plates, a sliding groove opened on the upper part of the front wall of the outer shell, threaded rods rotatably connected to the front ends of the multiple connecting plates through the sliding groove, the rear ends of the multiple threaded rods penetrating into the connecting plates and threadedly connected to a movable plate, insert rods fixedly connected to both sides of the rear wall of the multiple movable plates, insertion holes provided on the upper and lower parts of both sides of the multiple sliding grooves, the multiple insertion holes being opened in the front wall of the outer shell, the rear ends of the multiple insert rods penetrating into the insertion holes, and a sealing assembly, the sealing assembly being disposed on the bottom wall of the inner shell, the sealing assembly being used to seal the inner shell when the ceramic membranes are disassembled.

[0007] Optionally, the sealing assembly includes fixing rods, with multiple fixing rods fixedly connected to both sides of the middle of the top wall of the base plate, the top ends of multiple fixing rods penetrating the bottom wall of the inner shell, sealing blocks fixedly connected to the outer periphery of the top and bottom ends of multiple fixing rods, and springs fixedly connected to the front and rear sides of the bottom wall of multiple base plates, with the bottom ends of multiple springs fixedly connected to the bottom wall of the outer shell.

[0008] Optionally, each of the ceramic membrane bottom walls is fixedly connected with a positioning block, and the positioning blocks are engaged within the bottom plate.

[0009] Optionally, locking rods are rotatably connected to the front and rear sides of the top wall of the ceramic membrane, and the bottom ends of the locking rods penetrate the bottom wall of the ceramic membrane and are threaded into the bottom plate.

[0010] Optionally, all of the movable plates are rectangular blocks, and all of the movable plates are slidably connected to the inner wall of the connecting plate.

[0011] Optionally, multiple guide rods are fixedly connected to the front and rear sides of the bottom wall of the inner shell. The bottom ends of the multiple guide rods penetrate the upper and lower walls of the bottom plate and are fixedly connected to the inner bottom wall of the outer shell. Multiple springs are arranged on the outer periphery of the guide rods.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, through the combined action of the threaded rod, the movable plate, the insertion rod, the insertion hole, the connecting plate, the bottom plate, the ceramic membrane, the outer shell, and the sliding groove, the position of the bottom plate can be limited and positioned when the ceramic membrane is inserted into the inner shell and the bottom plate or when it is pulled out, so as to prevent the bottom plate from moving under the action of sewage pressure.

[0014] 2. In this utility model, under the combined action of the base plate, fixing rod, sealing block, inner shell and spring, the base plate will move down and compress the spring when the ceramic membrane is installed. Therefore, after the ceramic membrane is removed, the spring will push the base plate up and reset itself, so that the sealing block is stuck into the bottom wall of the inner shell, thereby increasing the sealing performance of the device. Attached Figure Description

[0015] Figure 1 This is a perspective view of a device for treating dyeing and printing wastewater using a ceramic flat sheet membrane, as proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the device for treating dyeing and printing wastewater using a ceramic flat sheet membrane, as proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure of the bottom plate in a device for treating dyeing and printing wastewater using a ceramic flat membrane, as proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the ceramic membrane structure in the device for treating dyeing and printing wastewater using a ceramic flat sheet membrane, as proposed in this utility model.

[0019] Legend:

[0020] 1. Outer shell; 2. Slide groove; 3. Ceramic membrane; 4. Locking rod; 5. Inlet pipe; 6. Insertion hole; 7. Connecting plate; 8. Threaded rod; 9. Moving plate; 10. Inner shell; 11. Positioning block; 12. Base plate; 13. Guide rod; 14. Fixing rod; 15. Sealing block; 16. Insertion rod; 17. Spring; 18. Outlet pipe. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-4This utility model provides an embodiment of a device for treating dyeing and printing wastewater using ceramic flat membranes. The device includes a shell 1, an inner shell 10 fixedly connected to the top wall of the shell 1, an inlet pipe 5 fixedly connected to the upper part of one side of the shell 1, communicating with the inner shell 10, and an outlet pipe 18 connected to the lower part of the other side of the shell 1. Multiple ceramic membranes 3 are slidably connected to the top wall of the shell 1. Each ceramic membrane 3 consists of an internal filtration section, an outer frame section, and a lower drainage section. The bottom ends of the multiple ceramic membranes 3 sequentially penetrate the top wall of the shell 1 and the bottom wall of the inner shell 10, and are provided with a base plate 12. The top wall of the base plate 12 has a slot that matches a positioning block 11. The bottom walls of the multiple ceramic membranes 3 are fixedly connected with positioning blocks 11, and the multiple positioning blocks 11 are engaged within the base plate 12. Multiple ceramic membranes 3 are rotatably connected to locking rods 4 on the front and rear sides of their top walls. The bottom ends of multiple locking rods 4 penetrate the bottom wall of ceramic membranes 3 and are threaded into the bottom plate 12. Multiple bottom plates 12 are fixedly connected to connecting plates 7 on the front side of their top walls. A sliding groove 2 is opened on the upper part of the front wall of the outer shell 1. The front ends of multiple connecting plates 7 penetrate the sliding groove 2 and are rotatably connected to threaded rods 8. The rear ends of multiple threaded rods 8 penetrate into the connecting plates 7 and are threadedly connected to movable plates 9. Multiple movable plates 9 are rectangular blocks. Multiple movable plates 9 are slidably connected to the inner wall of the connecting plates 7. Multiple movable plates 9 are fixedly connected to insert rods 16 on both sides of their rear walls. Multiple sliding grooves 2 are provided with insertion holes 6 on the upper and lower parts of both sides. Multiple insertion holes 6 are opened on the front wall of the outer shell 1. The rear ends of multiple insert rods 16 penetrate into the insertion holes 6.

[0023] Rotating the threaded rod 8 will cause the movable plate 9 connected to the outer periphery to move. Since the movable plate 9 is rectangular and slides inside the connecting plate 7, the inner wall of the connecting plate 7 will limit the movable plate 9, so that the movable plate 9 cannot rotate with the rotation of the threaded rod 8. Therefore, as the threaded rod 8 rotates, it will drive the movable plate 9 to move back and forth along the threaded rod 8. When the movable plate 9 moves back and forth, it will drive the connected insertion rod 16 to move back and forth. When the insertion rod 16 moves backward and is inserted into the insertion hole 6, the connecting plate 7 can be limited and fixed.

[0024] Therefore, in actual use, the wastewater generated during printing is sent into the inner shell 10 through the inlet pipe 5 and filtered by the ceramic membrane 3 in the inner shell 10. The filtered water is discharged into the lower part of the outer shell 1 through the drain port at the bottom of the ceramic membrane 3, and finally discharged from the outlet pipe 18. When the operator needs to disassemble the ceramic membrane 3, the insertion rod 16 can be driven out of the insertion hole 6 by rotating the threaded rod 8, thereby removing the limit on the connecting plate 7 and the base plate 12. Then the ceramic membrane 3 can be pulled out, and the base plate 12 will also be pulled out as the ceramic membrane 3 is pulled out. Move upwards and press against the bottom wall of the inner shell 10 to seal it. Then rotate the threaded rod 8 in the opposite direction to insert the insertion rod 16 into the upper insertion hole 6 for limiting and fixing. Then rotate the locking rod 4 on the ceramic membrane 3 to pull it out from the bottom plate 12, thereby canceling the fixation between the ceramic membrane 3 and the bottom plate 12, so as to pull out and disassemble the ceramic membrane 3. This can prevent the sealing block 15 and the bottom plate 12 from failing to maintain the seal with the inner shell 10 due to the excessive pressure of sewage in the inner shell 10, and thus prevent sewage from seeping out from the position where the ceramic membrane 3 penetrates the inner shell 10 after the ceramic membrane 3 is disassembled.

[0025] Reference Figures 1-4 A sealing assembly is disposed on the bottom wall of the inner shell 10. The sealing assembly is used to seal the inner shell 10 when the ceramic membrane 3 is removed. The sealing assembly includes fixing rods 14, which are fixedly connected to both sides of the middle part of the top wall of the bottom plate 12. The top ends of the fixing rods 14 penetrate the inner bottom wall of the inner shell 10. The bottom wall of the inner shell 10 has a slot that can engage the sealing block 15. The top and bottom ends of the fixing rods 14 are fixedly connected to the outer periphery of the sealing block 15. The bottom ends of the bottom walls of the bottom plate 12 are fixedly connected to the front and rear sides of the bottom wall of the outer shell 1. The bottom ends of the springs 17 are fixedly connected to the inner bottom wall of the outer shell 1. The bottom ends of the guide rods 13 are fixedly connected to the front and rear sides of the bottom wall of the inner shell 10. The bottom ends of the guide rods 13 penetrate the upper and lower walls of the bottom plate 12 and are fixedly connected to the inner bottom wall of the outer shell 1. The springs 17 are disposed on the outer periphery of the guide rods 13.

[0026] With the spring 17 installed, when the ceramic membrane 3 needs to be disassembled, after the limiting of the connecting plate 7 and the base plate 12 is removed, the spring 17 will assist in pushing the base plate 12 to move upward and reset itself as the ceramic membrane 3 moves upward. When the base plate 12 moves upward, it will also drive the fixing rod 14 and the sealing block 15 at the bottom of the fixing rod 14 to move upward and be inserted into the bottom wall of the inner shell 10. At the same time, when the ceramic membrane 3 is installed, the base plate 12 and the fixing rod 14 will move downward, thereby driving the sealing block 15 at the top of the fixing rod 14 to move downward and abut against the inner bottom wall of the inner shell 10, thereby achieving the effect of increasing the sealing of the device. During installation, the guide rod 13 can limit the spring 17 to prevent the spring 17 from bending under the pressure of water flow, which would affect the normal use of the spring 17.

[0027] Working principle: In actual use, rotating the threaded rod 8 drives the moving plate 9 to move and pulls the insertion rod 16 out of the insertion hole 6, thereby removing the limiting effect on the connecting plate 7 and the bottom plate 12. Under the action of the spring 17, the bottom plate 12 moves upward, thereby driving the connected ceramic membrane 3 to move upward and extend out from the top wall of the outer shell 1, so that the staff can replace the ceramic membrane 3. When the bottom plate 12 moves upward, it also drives the fixed fixing rod 14 to move upward, and causes the fixed sealing block 15 at the bottom end of the fixing rod 14 to move upward and lock into the bottom wall of the inner shell 10 for sealing. The bottom plate 12 can seal the position where the ceramic membrane 3 penetrates the inner shell 10. Then, rotating the threaded rod 8 in the opposite direction drives the insertion rod 16 to move backward and insert into the upper insertion hole 6 for limiting and fixing, thereby positioning and fixing the position of the bottom plate 12 and its connecting parts, thus preventing the sealing block 15 and the bottom plate 12 from failing to maintain the sealing performance with the inner shell 10 due to excessive sewage pressure.

[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 device for treating dyeing wastewater by ceramic flat sheet membrane, comprising a housing (1), characterized in that: The inner top wall of the shell (1) is fixedly connected with an inner shell (10), one side upper portion of the shell (1) is fixedly connected with a water inlet pipe (5), the water inlet pipe (5) is communicated with the inner shell (10), the other side lower portion of the shell (1) is communicated with a water outlet pipe (18), the top wall of the shell (1) is slidably connected with a plurality of ceramic membranes (3), the bottom ends of the plurality of ceramic membranes (3) are sequentially penetrated through the inner top wall of the shell (1) and the bottom wall of the inner shell (10) and are provided with bottom plates (12), the top wall front sides of the plurality of bottom plates (12) are fixedly connected with connecting plates (7), a sliding groove (2) is formed in the upper portion of the front wall of the shell (1), the front ends of the plurality of connecting plates (7) are penetrated through the sliding groove (2) and are rotatably connected with threaded rods (8), the rear ends of the plurality of threaded rods (8) are penetrated into the connecting plates (7) and are threadedly connected with moving plates (9), the rear walls of the plurality of moving plates (9) are fixedly connected with inserting rods (16), the upper and lower portions of the two sides of the plurality of sliding grooves (2) are provided with inserting holes (6), the plurality of inserting holes (6) are formed in the front wall of the shell (1), and the rear ends of the plurality of inserting rods (16) are penetrated into the inserting holes (6). A sealing assembly is arranged on the bottom wall of the inner shell (10), and the sealing assembly is used for sealing the inner shell (10) when the ceramic membrane (3) is disassembled.

2. A device for treating dyeing wastewater by ceramic flat sheet membrane according to claim 1, characterized in that: The sealing assembly comprises a plurality of fixed rods (14), the top wall middle portions of the plurality of fixed rods (14) are fixedly connected with the two sides of the bottom plates (12), the top ends of the plurality of fixed rods (14) are penetrated through the inner bottom wall of the inner shell (10), the outer peripheries of the top ends and the bottom ends of the plurality of fixed rods (14) are fixedly connected with sealing blocks (15), the front and rear sides of the bottom walls of the plurality of bottom plates (12) are fixedly connected with springs (17), and the bottom ends of the plurality of springs (17) are fixedly connected with the inner bottom wall of the shell (1).

3. A device for treating dyeing wastewater by ceramic flat sheet membrane according to claim 1, characterized in that: The bottom walls of the plurality of ceramic membranes (3) are fixedly connected with positioning blocks (11), and the plurality of positioning blocks (11) are clamped in the bottom plates (12).

4. A device for treating dyeing wastewater by ceramic flat sheet membrane according to claim 1, characterized in that: The front and rear sides of the top walls of the plurality of ceramic membranes (3) are rotatably connected with locking rods (4), the bottom ends of the plurality of locking rods (4) are penetrated through the bottom walls of the ceramic membranes (3) and are threadedly connected in the bottom plates (12).

5. A device for treating dyeing wastewater by ceramic flat sheet membrane according to claim 1, characterized in that: The plurality of moving plates (9) are rectangular blocks, and the plurality of moving plates (9) are slidably connected with the inner walls of the connecting plates (7).

6. A device for treating dyeing wastewater by ceramic flat sheet membrane according to claim 2, characterized in that: The front and rear sides of the bottom walls of the inner shell (10) are fixedly connected with a plurality of guide rods (13), the bottom ends of the plurality of guide rods (13) are penetrated through the upper and lower walls of the bottom plates (12) and are fixedly connected with the inner bottom wall of the shell (1), and the plurality of springs (17) are arranged on the outer peripheries of the guide rods (13).

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