Wastewater recycling treatment device

Abstract

A wastewater recycling treatment device, comprising several filter units (1), wherein a filter tank (111) is constructed inside each filter unit (1); at least two flow channel ports (112) in communication with the filter tank (111) are constructed on each filter unit (1); the two flow channel ports (112) are respectively restricted to upstream and downstream sides of the filter tank (111); and the flow channel port (112) of each filter unit (1) located on an upstream side is configured to be in communication with a flow channel port (112) of an adjacent filter unit (1) located on a downstream side. In wastewater recycling treatment device, several filter pipes (2) filled with ion-exchange resin particles are mounted in each filter tank (111), and the filter pipes (2) are sequentially connected by means of a plurality of external pipes (9) to form a circulation channel. Subsequently, a liquid is driven by means of a pump to drive the ion-exchange resin particles to move in the circulation channel, such that ion-exchange resin particles located at a middle height of the filter tank (111) are redistributed, thereby improving the overall utilization rate of the ion-exchange resin particles.

Description

Wastewater resource treatment device Technical Field

[0001] The present invention relates to the field of sewage treatment, and in particular to a wastewater resource treatment device. Background Art

[0002] During semiconductor processing, wastewater often contains large amounts of copper ions. The effective recovery of this copper element is of great significance for environmental protection and resource reuse. Currently, ion exchange resin filtration devices are widely used in the industry to enrich and recover these copper ions. However, the design of traditional axial flow filtration devices has a significant flaw: wastewater enters from the top and exits from the bottom. This flow path causes the upper packing layer to be subjected to long-term positive pressure and axial impact from the liquid. Over long periods of use, the packing particles remain in a highly compressed state, which not only exacerbates mechanical wear and breakage of the upper packing layer but is also the main cause of uneven packing application.

[0003] In order to meet this challenge, professionals in the industry have been actively exploring and innovating. For example, Chinese patent CN117088466B discloses an advanced photovoltaic wastewater treatment device. This device cleverly disperses anion and cation exchange resin particles by laying multiple interconnected thin interlayers, ensuring that the resin particles can more fully contact the wastewater, thereby significantly improving the utilization efficiency of the ion exchange resin particles. However, although this device can switch the flow path of the wastewater in the filter unit by rotating the reversing member, thereby improving the utilization rate of the ion exchange resin particles near the upstream and downstream sides of the wastewater flow path, the utilization rate of the ion exchange resin particles located in the middle of the wastewater flow path is still a prominent problem, and its effect is far less than that of the resin particles near the two ends of the flow path.

[0004] Therefore, in order to further improve the utilization rate and service life of copper removal ion exchange resin and solve the problem of uneven filler use, it is necessary to further innovate and improve the existing photovoltaic wastewater treatment equipment.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide a wastewater resource treatment device which improves the overall utilization rate of ion exchange resin particles.

[0007] The technical solution adopted by the present invention to solve the above-mentioned problem is: a wastewater resource treatment device, comprising: a plurality of filter units, each of which is constructed with a filter tank inside, and each of the filter units is constructed with at least two flow openings connected to the filter tank, and the two flow openings are respectively limited to the upstream and downstream sides of the filter tank, and the flow opening of the filter unit on the upstream side is configured to be connected to the flow opening of the adjacent filter unit on the downstream side.

[0008] Each filter tank is provided with a plurality of filter tubes, and the arrangement posture of the plurality of filter tubes is configured so that the axes are parallel and coplanar, and the arrangement direction of the plurality of filter tubes is defined as a first direction. Along the first direction, the first filter tube is defined as the first filter tube, the last filter tube is defined as the second filter tube, and the remaining filter tubes are defined as the third filter tube.

[0009] The interior of each filter tube is filled with ion exchange resin particles, and a liquid inlet and a liquid outlet are configured on the circumference of each filter tube. The sizes of the liquid inlet and the liquid outlet are configured to limit the passage of the ion exchange resin particles.

[0010] Each filter tube is provided with a pipe opening at both ends thereof so as to connect the interior of the filter tube with the outside, and the two pipe openings at both ends of the filter tube are defined as a first pipe opening and a second pipe opening in sequence along a second direction, and the second direction is parallel to the axial direction of the filter tube.

[0011] The second pipe end of the first filter tube in each filter tank is connected to the second pipe end of the adjacent third filter tube, and the second pipe end of the second filter tube is connected to the second pipe end of the adjacent third filter tube. The first pipe end of the first filter tube is connected to the first pipe end of the second filter tube via a pump, so that the ion exchange resin particles move in the circulation channel formed by the first filter tube, the second filter tube, and a plurality of the third filter tubes.

[0012] Preferably, each filter tank is provided with a plurality of partition components to divide the filter tank into a plurality of filter spaces, the plurality of partition components are arranged in sequence along the first direction, and the plurality of partition components correspond one-to-one to the plurality of filter tubes.

[0013] Each partition assembly is constructed with a first cavity for accommodating the filter tube, the circumference of the filter tube is in contact with the circumference of the inner wall of the first cavity, and the circumference of the inner wall of the first cavity is constructed with two oppositely arranged first through grooves and a second through groove along a first direction.

[0014] The position of the liquid inlet should satisfy the requirement that when the liquid outlet and the second through groove are in relative positions, the liquid inlet and the first through groove are also in relative positions, so that the liquid entering the filter tube can be discharged through the liquid outlet.

[0015] Preferably, the liquid inlet and the liquid outlet are both composed of a plurality of filter holes, and the pore size of the filter holes is smaller than the particle size of the ion exchange resin particles.

[0016] Preferably, each of the filter tubes is configured to rotate synchronously and in a controlled manner.

[0017] The filter tube rotates relative to the partition assembly so that the liquid inlet and the liquid outlet located on the circumferential side of the filter tube are simultaneously located in positions facing the circumferential side of the inner wall of the first cavity, so that the liquid inlet and the liquid outlet are closed, making the internal space of the circulation channel independent of the filter tank.

[0018] Preferably, a recoil groove is constructed on the peripheral side of the inner wall of the first cavity, and a water inlet pipe connected to the recoil groove is constructed on the partition assembly. The water inlet pipe is connected to an external water source to guide water into the recoil groove.

[0019] Preferably, each of the filter units includes a first plate and a second plate that are parallel and circumferentially aligned, the filter tank is constructed on the side of the first plate facing the second plate, the number of the flow openings is limited to four, two of the flow openings are located upstream of the filter tank and are defined as first flow openings, and two of the flow openings are located downstream of the filter tank and are defined as second flow openings.

[0020] The wastewater resource treatment device also includes a fixed frame, and all the filter units are installed in the fixed frame, specifically including a base plate and two limit rods extending along the thickness direction of the base plate. All the filter units are arranged between the two limit rods, and the fixed frame also includes a pre-tightening mechanism for pressing each filter unit along the thickness direction of the base plate, so that the relative surfaces of adjacent filter units are pressed against each other, so that the first flow channel opening on the first plate in the filter unit is connected to the first flow channel opening on the second plate in the adjacent filter unit, and the second flow channel opening on the first plate in the filter unit is connected to the second flow channel opening on the second plate in the adjacent filter unit, so that liquid can flow in the adjacent filter units.

[0021] Preferably, a first communicating groove connected to the filter tank and a second communicating groove connected to the filter tank are further constructed on the side of the first plate facing the second plate, and the first communicating groove and the second communicating groove are respectively arranged on the upstream and downstream sides of the filter tank.

[0022] The position of the first flow channel opening is limited within the first communicating groove, and the position of the second flow channel opening is limited within the second communicating groove.

[0023] Preferably, the number of the first flow channel openings and the number of the second flow channel openings on each first plate are both two, and the same number of first flow channel openings and second flow channel openings are constructed on each second plate at the position of the first flow channel opening on the corresponding first plate and at the position of the second flow channel opening.

[0024] Preferably, the connecting portion between the first connecting groove and the filter groove and the connecting portion between the second connecting groove and the filter groove are both constructed with a reversing groove, the reversing groove in the first connecting groove is located in the middle of the two first flow channel openings, and the reversing groove in the second connecting groove is located in the middle of the two second flow channel openings.

[0025] A rotatable reversing member is provided inside each of the reversing grooves to control the on-off state of the two first flow channel openings in each of the first connecting grooves and to control the on-off state of the two second flow channel openings in each of the second connecting grooves, so that only one first flow channel opening in each of the filter units is connected to one of the second flow channel openings in the filter unit through the filter groove.

[0026] A switching mechanism for controlling the rotation of each of the switching members is installed on the substrate.

[0027] Preferably, the two pipe openings at both ends of each filter tube extend to the outside of the filter unit.

[0028] The wastewater resource treatment device also includes a transmission mechanism, each of which includes several synchronous wheels, synchronous belts and drivers. Several of the synchronous wheels correspond one-to-one to several of the second pipe openings. The synchronous wheels are installed on the circumferential side of the second pipe openings. The synchronous belts are wound around several of the synchronous wheels so that the several synchronous wheels have a tendency to move synchronously. The driver includes an output shaft with controlled rotation, and a drive wheel is installed on the output shaft. The drive wheel is connected to the synchronous belt and tensions the synchronous belt.

[0029] Compared with the prior art, the present invention has the following advantages and effects:

[0030] The wastewater resource treatment device installs several filter tubes filled with ion exchange resin particles in a filter tank, and connects the filter tubes in sequence through multiple external tubes to form a circulation channel. Afterwards, a pump drives liquid to flow in the circulation channel to drive the ion exchange resin particles in the filter tubes to move, so that the ion exchange resin particles at the middle height of the filter tank can be redistributed, thereby improving the overall utilization rate of the ion exchange resin particles. Furthermore, by arranging several partition components corresponding to each filter tube in the filter tank and controlling the rotation of the filter tubes, the internal space of the filter tubes can be made independent of the filter tank space, so as to prevent the liquid in the filter tubes from being discharged into the filter tank during the redistribution of the ion exchange resin particles, thereby affecting the flow performance of the ion exchange resin particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a front cross-sectional view of a filter unit according to an embodiment of the present invention.

[0032] FIG2 is a schematic structural diagram of the connection state of the filter tube and the partition assembly in an embodiment of the present invention.

[0033] FIG3 is an exploded view of the filter tube and partition assembly according to an embodiment of the present invention.

[0034] FIG4 is a schematic structural diagram of a filter tube according to an embodiment of the present invention.

[0035] FIG5 is a side cross-sectional view of a partition assembly according to an embodiment of the present invention.

[0036] FIG6 is an enlarged view of point A in FIG1 of the present invention.

[0037] FIG7 is a schematic structural diagram of a sealing gasket layer in an embodiment of the present invention.

[0038] FIG8 is a schematic structural diagram of the second plate member in an embodiment of the present invention.

[0039] FIG9 is a schematic structural diagram of an embodiment of the present invention.

[0040] Wherein: 1. Filter unit; 110. First plate; 111. Filter tank; 112. Flow channel; 113. First connecting tank; 114. Second connecting tank; 115. Reversing tank; 120. Second plate; 2. Filter tube; 210. Liquid inlet; 220. Liquid outlet; 230. Pipe opening; 240. Water inlet pipe; 3. First filter tube; 4. Second filter tube; 5. Second filter tube; 6. First pipe opening; 7. Second pipe opening; 8. Sealing gasket; 9. External pipe; 10. Partition assembly; 1010. First through tank ; 1020, second through groove; 1030, first cavity; 1031, recoil groove; 11, transmission mechanism; 1110, synchronous wheel; 1120, synchronous belt; 12, first flow channel opening; 13, second flow channel opening; 14, fixed frame; 1410, base plate; 1420, limiting rod; 15, pre-tightening mechanism; 1510, pressure plate; 1520, pull rod; 1530, abutment; 1540, pre-tightening nut; 16, reversing member; 17, switching mechanism; 18, support trustee; 19, mechanical seal. DETAILED DESCRIPTION

[0041] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0044] As shown in Figures 1 and 9, a wastewater resource treatment device includes several filter units 1, each of which is constructed with a filter tank 111 inside, and each of the filter units 1 is constructed with at least two flow openings 112 connected to the filter tank 111, and the two flow openings 112 are respectively limited to the upstream and downstream sides of the filter tank 111, and the flow opening 112 of the filter unit 1 on the upstream side is configured to be connected to the flow opening 112 of the adjacent filter unit 1 on the downstream side. Each filter tank 111 is provided with a plurality of filter tubes 2 arranged so that their axes are parallel and coplanar. The arrangement direction of the filter tubes 2 is defined as a first direction. Along this first direction, the first filter tube 2 is defined as the first filter tube 3, the last filter tube 2 is defined as the second filter tube 4, and the remaining filter tubes 2 are defined as the third filter tube 5. Each filter tube 2 is filled with ion exchange resin particles (not shown). Each filter tube 2 is also provided with a liquid inlet 210 and a liquid outlet 220 on its circumference. The dimensions of the liquid inlet 210 and the liquid outlet 220 are configured to restrict the passage of the ion exchange resin particles. Furthermore, each filter tube 2 is provided with a nozzle 230 at each end, connecting the interior of the filter tube 2 to the outside world. The nozzles 230 at each end of the filter tube 2 are defined as a first nozzle 6 and a second nozzle 7, respectively, along a second direction parallel to the axis of the filter tube 2. The second pipe opening 7 of the first filter tube 3 in each filter tank 111 is connected to the second pipe opening 7 of the adjacent third filter tube 5. The second pipe opening 7 of the second filter tube 4 in each filter tank 111 is connected to the second pipe opening 7 of the adjacent third filter tube 5. The first pipe opening 6 of the first filter tube 3 in each filter tank 111 is connected to the first pipe opening 6 of the second filter tube 4 via a pump (not shown in the figure), so that the ion exchange resin particles move within the circulation channel formed by the first filter tube 3, the second filter tube 4, and the plurality of third filter tubes 5. The wastewater resource treatment device proposed in this application solves the problem of insufficient utilization of ion exchange resin particles located in the middle of the filter tank 111 in existing wastewater treatment devices by disposing a plurality of filter tubes 2 filled with ion exchange resin particles and arranging and connecting the plurality of filter tubes 2 in a certain order. This allows the ion exchange resin particles in the filter tubes 2 to move within the circulation channel formed by the filter tubes 2, thereby redistributing the ion exchange resin particles.It should be noted that there are two prerequisites for the ion exchange resin particles in the filter tube 2 to move in the circulation channel. First, the ion exchange resin particles in the filter tube 2 cannot be in a saturated filling state, and it is necessary to ensure that the ion exchange resin particles have space to move in the filter tube 2. Second, when the ion exchange resin particles move in the circulation channel, it is necessary to ensure that there is an appropriate amount of liquid in the filter tank 111 so that the ion exchange resin particles in the filter tube 2 are in a relatively suspended state, thereby enhancing the fluidity of the ion exchange resin particles.

[0045] Specifically, in one embodiment, the filter tank 111 is a rectangular tank having a long side and a short side. The filter tube 2 is a hollow tube having a length greater than the short side of the rectangular tank. In addition, the first direction is in the same direction as the long side of the rectangular tank. It should be noted that a gap is left between adjacent filter tubes 2 in the filter tank 111. The first pipe opening 6 distributed in each filter tube 2 and the second pipe opening 7 distributed in each filter tube 2 extend to the outside of the filter unit 1. The second direction is in the same direction as the short side of the rectangular tank. The first pipe opening 6 and the first pipe opening 6 on the adjacent filter unit 1, as well as the second pipe opening 7 and the second pipe opening 7 on the adjacent filter unit 1, are connected by an external pipe 9 to connect the multiple filter tubes 2 in the same filter tank 111 into a circulation channel for the flow of ion exchange resin particles. It should be noted that before the ion exchange resin particles move, a certain amount of liquid needs to be introduced into the circulation channel. Therefore, a one-way water inlet (not shown in the figure) needs to be constructed on at least one external pipe 9 in each filter unit 1 to allow liquid to be introduced into the filter tube 2.

[0046] As shown in Figures 1-6, after the wastewater enters the filter tank 111 through the flow channel 112, it will pass through each filter tube 2 in the order of flowing in from the liquid inlet 210 and being discharged from the liquid outlet 220. However, because the liquid outlet 220 on the filter tube 2 is difficult to completely connect with the liquid inlet 210 on the adjacent filter tube 2, and even if the peripheral side of the filter tube 2 abuts against the inner wall of the filter tank 111, it is difficult to completely isolate the filter tank 111, and it is impossible to ensure that the wastewater flowing in sequence can flow through the ion exchange resin particles in each filter tube 2 in turn, so that part of the wastewater directly flows to the flow channel 112 on the outlet side without being processed by the ion exchange resin particles in the filter tube 2. Therefore, a number of partition components 10 need to be added to the filter tank 111 to prevent the wastewater from directly flowing through the gap between the peripheral side of the filter tube 2 and the inner wall of the filter tank 111.

[0047] Each filter tank 111 is provided with a plurality of partition assemblies 10 to divide the filter tank 111 into a plurality of filtration spaces. The partition assemblies 10 are arranged sequentially along the first direction, and correspond one-to-one with the filter tubes 2. Each partition assembly 10 is configured with a first cavity 1030 for accommodating the filter tube 2. The circumference of the filter tube 2 is aligned with the circumference of the inner wall of the first cavity 1030. The inner wall of the first cavity 1030 is configured with two first through-grooves 1010 and second through-grooves 1020 facing each other along the first direction. When the liquid inlet 210 is positioned such that the liquid outlet 220 and the second through-grooves 1020 face each other, the liquid inlet 210 and the first through-grooves 1010 also face each other, so that liquid entering the filter tube 2 can be discharged through the liquid outlet 220.

[0048] Specifically, in one embodiment, the outer contour of the partition assembly 10 is approximately rectangular. The two ends of the rectangular parallelepiped along the length direction abut against the two inner walls of the filter tank 111 along its short sides, while the two side surfaces of the rectangular parallelepiped along the width direction abut against the two inner walls of the filter tank 111 along its thickness direction, thereby partitioning the filter tank 111. A plurality of partition assemblies 10 can divide the filter tank 111 into a plurality of relatively independent spaces. A first cavity 1030 is constructed within the rectangular parallelepiped along its length. Furthermore, two opposing inner walls of the first cavity 1030 along its length direction are each configured with a channel for the end nozzle 230 of the filter tube 2 to pass through. It should be noted that sealing components such as sealing rings are installed within each channel and around the nozzle of the filter tube 2 to prevent liquid from leaking through the gap between the filter tube 2 and the inner wall of the channel. The line connecting the center of the liquid inlet 210 and the center of the liquid outlet 220 located on the side of the filter tube 2 must pass through the axis of the filter tube 2. This ensures that after the liquid inlet 210 is aligned with the first through-slot 1010, the liquid outlet 220 will also be aligned with the second through-slot 1020, ensuring that wastewater can pass smoothly through the filter tube 2. The liquid inlet 210 and the liquid outlet 220 are each composed of a plurality of filter holes, and the pore size of each filter hole is smaller than the particle size of the ion exchange resin particles to prevent the ion exchange resin particles from leaking out of the filter holes. The plurality of filter holes on the filter tube 2 are evenly distributed along the axis of the filter tube 2.

[0049] In specific implementation, after wastewater enters the filter tank 111 through the flow channel opening 112 on one side, the wastewater will be accumulated and discharged in each filter space divided by each partition component 10 in sequence, and finally the wastewater will be discharged to the next filter unit 1 through the flow channel opening 112 on the other side. During the process of accumulating wastewater in the filter space, the wastewater will flow through the ion exchange resin particles in each filter tube 2 in the filter tank 111 in sequence, while achieving multiple filtration of the wastewater and preventing some wastewater from leaking out.

[0050] When the liquid inlet 210 is aligned with the first through groove 1010 and the liquid outlet 220 is aligned with the second through groove 1020, the filter tube 2 is in a passage state. In the process of redistributing the ion exchange resin particles, the liquid in the filter tube 2 will be discharged from the filter tube 2 through the liquid inlet 210 and the liquid outlet 220 in turn. When a large amount of liquid in the filter tube 2 flows out, it will affect the fluidity of the ion exchange resin particles in the circulation channel. Therefore, in order to ensure that the ion exchange resin particles have sufficient fluidity during the redistribution process, each filter tube 2 needs to be rotated relative to the corresponding partition assembly 10. When the filter tube 2 rotates a certain angle relative to the partition assembly 10, the liquid inlet 210 and the liquid outlet 220 on the filter tube 2 will be blocked by the inner wall of the first cavity 1030 at the same time to prevent the liquid in the filter tube 2 from seeping out.

[0051] Each of the filter tubes 2 is configured to rotate synchronously and in a controlled manner. After the filter tube 2 rotates relative to the partition assembly 10, the liquid inlet 210 and the liquid outlet 220 located on the circumferential side of the filter tube 2 can be simultaneously in a state of overlapping with the circumferential side of the inner wall of the first cavity 1030, thereby closing the liquid inlet 210 and the liquid outlet 220, so that the circulation channel is independent of the filter tank 111, forming a relatively independent circulation space.

[0052] Specifically, the two nozzles 230 at both ends of each filter tube 2 extend to the outside of the filter unit 1. The wastewater resource treatment device also includes a transmission mechanism 11, each of which includes a plurality of synchronous wheels 1110, a synchronous belt 1120 and a driver (not shown in the figure). The plurality of synchronous wheels 1110 correspond to the plurality of second nozzles 7 one by one, and the synchronous wheels 1110 are installed on the peripheral side of the second nozzle 7. The synchronous belt 1120 is wound around the plurality of synchronous wheels 1110 so that the plurality of synchronous wheels 1110 have a tendency to move synchronously. The driver includes an output shaft for controlled rotation, and a synchronous belt 1120 is installed on the output shaft. There is a driving wheel, which is connected to the synchronous belt 1120 and tensions the synchronous belt 1120. The driver can be optionally a driving motor. When the output shaft of the driving motor rotates, all the filter tubes 2 in the filter tank 111 rotate synchronously and in the same direction until the liquid inlets 210 and the liquid outlets 220 on the circumferential sides of all the filter tubes 2 coincide with the circumferential sides of the inner walls of the corresponding first cavities 1030. In this way, the internal space of the filter tube 2 can be made independent of the filter tank 111, which prevents the liquid inside the filter tube 2 from flowing into the filter tank 111, and ensures that the ion exchange resin particles in the filter tube 2 have sufficient fluidity with the help of the liquid during the redistribution process.

[0053] When the ion exchange resin particles in the filter tube 2 flow through the filter holes, they are prone to frictional contact with the filter holes. During this process, the ion exchange resin particles, driven by the liquid, are easily damaged after colliding with the edge of the filter hole. The damaged particle fragments may block the filter hole. To prevent the above situation from occurring, a backwash groove 1031 is constructed on the inner wall of the first cavity 1030. The backwash water flow pushes the ion exchange resin particles flowing through the filter holes away from the side of the tube wall of the filter tube 2.

[0054] A backwash groove 1031 is constructed on the circumferential side of the inner wall of the first cavity 1030 . A water inlet pipe 240 connected to the backwash groove 1031 is constructed on the partition assembly 10 . The water inlet pipe 240 is connected to an external water source to guide water flow into the backwash groove 1031 .

[0055] Specifically, recoil grooves 1031 are constructed on opposite sides of the inner wall of the first cavity 1030. These recoil grooves 1031 are elongated and extend axially along the filter tube 2. When the liquid inlet 210 and liquid outlet 220 located on the circumference of the filter tube 2 coincide with the inner wall of the first cavity 1030, the recoil grooves 1031 in the first cavity 1030 precisely cover the liquid inlet 210 and liquid outlet 220 on the circumference of the filter tube 2. A water inlet pipe 240 is constructed at the end of the filter tube 2. It should be noted that the external water source connected to the water inlet pipe 240 has a certain water pressure, which causes the water flowing into the recoil groove 1031 to be ejected in a direction toward the central axis of the filter tube 2, thereby pushing the ion exchange resin particles flowing through the filter pores toward the wall of the filter tube 2.

[0056] In one embodiment, each filter unit 1 includes a first plate 110 and a second plate 120 that are parallel and circumferentially aligned. The filter tank 111 is located on the side of the first plate 110 facing the second plate 120. The number of flow openings 112 is limited to four: two flow openings 112 are located upstream of the filter tank 111 and are defined as first flow openings 12, and two flow openings 112 are located downstream of the filter tank 111 and are defined as second flow openings 13. Furthermore, a first connecting groove 113 and a second connecting groove 114 are also configured on the side of the first plate 110 facing the second plate 120, connected to the filter tank 111. The first connecting groove 113 and the second connecting groove 114 are respectively disposed on the upstream and downstream sides of the filter tank 111. The position of the first flow opening 12 is limited within the first connecting groove 113, and the position of the second flow opening 13 is limited within the second connecting groove 114. The number of the first flow openings 12 and the number of the second flow openings 13 on each first plate 110 are both two, and the same number of first flow openings 12 and second flow openings 13 are constructed on each second plate 120 at the positions of the first flow openings 12 and the second flow openings 13 on the corresponding first plate 110.

[0057] As shown in Figures 7-9, the wastewater resource treatment device also includes a fixing frame 14, and all the filter units 1 are installed in the fixing frame 14, specifically including the substrate 1410 and two limiting rods 1420 extending along the thickness direction of the substrate 1410. All the filter units 1 are arranged between the two limiting rods 1420, and the fixing frame 14 also includes the pre-tightening mechanism 15 for pressing each filter unit 1 along the thickness direction of the substrate 1410, so that the relative surfaces of adjacent filter units 1 are pressed against each other, so that the first flow channel 12 on the first plate 110 in the filter unit 1 is connected to the first flow channel 12 on the second plate 120 in the adjacent filter unit 1, and the second flow channel 13 on the first plate 110 in the filter unit 1 is connected to the second flow channel 13 on the second plate 120 in the adjacent filter unit 1, so that liquid can flow in the adjacent filter units 1.

[0058] Specifically, the first plate 110 and the second plate 120 are preferably rectangular plates of the same size. The first plate 110 is constructed with a raised step along its own thickness direction and toward the second plate 120. The filter tank 111 is constructed on the raised step in an embedded manner. When the first plate 110 and the second plate 120 are in contact, the filter tank 111 is enclosed and sealed, thereby preventing wastewater leakage. The base plate 1410 is constructed with a number of water holes, some of which correspond to the position of the first flow channel 12, and the other part corresponds to the position of the second flow channel 13. The water holes are also equipped with connecting flanges connected to external pipes. It should be noted that the first flow channel 12 and the second flow channel 13 of the filter unit 1 farthest from the base plate 1410 should also be connected to the external discharge pipe.

[0059] During specific implementation, wastewater is introduced into a connecting flange through an external water pipe. Thereafter, the wastewater enters the first flow channel 12 or the second flow channel 13 on the filter unit 1 adjacent to the substrate 1410 through the water hole on the substrate 1410, thereby allowing the wastewater to enter the filter unit 1. When the wastewater is in the filter tank 111 of the filter unit 1, it will flow through the ion exchange resin particles (not shown in the figure) in each filter tube 2 in turn. Thereafter, the wastewater flows to the adjacent filter unit 1 through the first flow channel 12 or the second flow channel 13 to be processed again until the wastewater flows through each filter unit 1 and finally enters the external discharge pipe.

[0060] It should be noted that several pairs of supporting tubes 18 are constructed on both sides of the first plate 110 in the second direction. The pipe mouth at the end of the filter tube 2 is plugged into the supporting tube 18 on the side of the first plate 110, and bearings and mechanical seals 19 are provided in the Zhicheng tube 18 to ensure that wastewater will not leak from the gap while the filter tube 2 rotates.

[0061] Furthermore, the pre-tightening mechanism 15 includes a pressure plate 1510 which is arranged between two limiting rods 1420 and can slide axially along the limiting rods 1420. A number of filter units 1 are arranged between the substrate 1410 and the pressure plate 1510, and a number of pull rods 1520 are provided on the substrate 1410. The length direction of the pull rod 1520 is parallel to the thickness direction of the substrate 1410, and an abutment 1530 is provided at one end of the pull rod 1520 to abut against the substrate 1410. A pre-tightening nut 1540 is also threadedly connected to the pull rod 1520 to abut against the pressure plate 1510.

[0062] Specifically, after tightening the pre-tightening nut 1540, the pressure plate 1510 is forced to move toward the base plate 1410, thereby clamping each filter unit 1, that is, the first plate 110 and the second plate 120 in the filter unit 1 are abutted against each other, and the adjacent filter units 1 are also clamped to ensure that the first flow channel 12 on the first plate 110 in the filter unit 1 and the first flow channel 12 on the second plate 120 in the adjacent filter unit 1 or the second flow channel 13 on the first plate 110 in the filter unit 1 and the second flow channel 13 on the second plate 120 in the adjacent filter unit 1 have good sealing connection performance.

[0063] Furthermore, in order to avoid wastewater leakage between the first plate 110 and the second plate 120, the filter unit 1 also includes a sealing gasket layer 8, which is clamped between the first plate 110 and the second plate 120. When the sealing gasket layer 8 is clamped, it will elastically deform to fill the gap between the first plate 110 and the second plate 120.

[0064] Furthermore, the connecting portion between the first communicating groove 113 and the filter groove 111 and the connecting portion between the second communicating groove 114 and the filter groove 111 are both constructed with a reversing groove 115. The reversing groove 115 in the first communicating groove 113 is located in the middle of the two first flow channel openings 12, and the reversing groove 115 in the second communicating groove 114 is located in the middle of the two second flow channel openings 13. A rotatable reversing member 16 is provided inside each of the reversing grooves 115 to limit the connection state of the two first flow channel openings 12 in each first communicating groove 113 and to limit the connection state of the two second flow channel openings 13 in each second communicating groove 114, so that one first flow channel opening 12 in the filter unit 1 can only be connected to one second flow channel opening 13 in the filter unit 1 through the filter groove 111. A switching mechanism 17 for controlling the rotation of each reversing member 16 is also installed on the substrate 1410.

[0065] It should be noted that this application is based on improvements to the existing technology. The reversing member 16, the switching mechanism 17 and the filtering principle in this application can all refer to a photovoltaic wastewater treatment device disclosed in Chinese patent CN202311342017.0.

[0066] The above contents described in this specification are merely examples of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described embodiments, without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications, additions, or substitutions may be made to the described embodiments. Such modifications, additions, or substitutions may be made by persons skilled in the art. Such modifications, additions, or substitutions may be made to the described embodiments without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications shall fall within the scope of protection of the present invention.

Claims

1. A wastewater resource treatment device, comprising: A plurality of filter units, each of which has a filter tank configured therein, and each of which has at least two flow openings connected to the filter tank, the two flow openings being respectively limited to the upstream and downstream sides of the filter tank, and the flow opening of the filter unit located on the upstream side being configured to communicate with the flow opening of the adjacent filter unit located on the downstream side; Its characteristics are: Each filter tank is provided with a plurality of filter tubes, and the filter tubes are arranged so that their axes are parallel and coplanar. The arrangement direction of the filter tubes is defined as a first direction. Along the first direction, the first filter tube is defined as the first filter tube, the last filter tube is defined as the second filter tube, and the remaining filter tubes are defined as the third filter tubes. The interior of each filter tube is filled with ion exchange resin particles, and a liquid inlet and a liquid outlet are configured on the circumference of each filter tube, and the sizes of the liquid inlet and the liquid outlet are configured to limit the passage of the ion exchange resin particles; Each filter tube is provided with a pipe opening at both ends thereof so as to connect the interior of the filter tube with the outside, and the two pipe openings at both ends of the filter tube are defined as a first pipe opening and a second pipe opening in sequence along a second direction, wherein the second direction is parallel to the axial direction of the filter tube; The second pipe end of the first filter tube in each filter tank is connected to the second pipe end of the adjacent third filter tube, and the second pipe end of the second filter tube is connected to the second pipe end of the adjacent third filter tube. In addition, an external pipe is provided between the second pipe end of the first filter tube in each filter tank and the second pipe end of the adjacent third filter tube, and between the second pipe end of the second filter tube in each filter tank and the second pipe end of the adjacent third filter tube. The first pipe end of the first filter tube is connected to the first pipe end of the second filter tube via a pump, so that the ion exchange resin particles move in the circulation channel formed by the first filter tube, the second filter tube, and a plurality of the third filter tubes. Wherein, at least one external pipe in each of the filter units is configured with a one-way water inlet for introducing liquid into the corresponding filter pipe; Each of the filter tanks is provided with a plurality of partition components to divide the filter tank into a plurality of filter spaces, the plurality of partition components are sequentially arranged along the first direction, and the plurality of partition components correspond one to one with the plurality of filter tubes; Each partition assembly is configured with a first cavity for accommodating the filter tube, wherein the circumference of the filter tube is in contact with the circumference of the inner wall of the first cavity, and the circumference of the inner wall of the first cavity is configured with two oppositely arranged first through grooves and a second through groove along a first direction; The position of the liquid inlet should satisfy the requirement that when the liquid outlet and the second through groove are in relative orientation, The liquid inlet and the first through groove are also located in opposite directions so that the liquid entering the filter tube can be discharged through the liquid outlet; The liquid inlet and the liquid outlet are both composed of a plurality of filter holes, and the pore size of the filter holes is smaller than the particle size of the ion exchange resin particles; Each of the filter tubes is configured to rotate synchronously and in a controlled manner; The filter tube rotates relative to the partition assembly so that the liquid inlet and the liquid outlet located on the circumference of the filter tube are simultaneously located in a position facing the circumference of the inner wall of the first cavity, so that the liquid inlet and the liquid outlet are closed, making the internal space of the circulation channel independent of the filter tank; A backflush groove is constructed on the circumferential side of the inner wall of the first cavity, and a water inlet pipe connected to the backflush groove is constructed on the partition assembly. The water inlet pipe is connected to an external water source to introduce water flow into the backflush groove, so that the ion exchange resin particles flowing through the filter holes are pushed away from the inner wall of the filter tube by the backflush water flow.

2. A wastewater resource treatment device according to claim 1, characterized in that: Each of the filter units includes a first plate and a second plate that are parallel and circumferentially aligned, the filter tank is configured on a side of the first plate facing the second plate, the number of the flow openings is limited to four, two of the flow openings are located upstream of the filter tank and are defined as first flow openings, and two of the flow openings are located downstream of the filter tank and are defined as second flow openings; The wastewater resource treatment device also includes a fixed frame, and all the filter units are installed in the fixed frame, specifically including a base plate and two limit rods extending along the thickness direction of the base plate. All the filter units are arranged between the two limit rods, and the fixed frame also includes a pre-tightening mechanism for pressing each filter unit along the thickness direction of the base plate, so that the relative surfaces of adjacent filter units are pressed against each other, so that the first flow channel opening on the first plate in the filter unit is connected to the first flow channel opening on the second plate in the adjacent filter unit, and the second flow channel opening on the first plate in the filter unit is connected to the second flow channel opening on the second plate in the adjacent filter unit, so that liquid can flow in the adjacent filter units.

3. A wastewater resource treatment device according to claim 2, characterized in that: A first communicating groove connected to the filter tank and a second communicating groove connected to the filter tank are further configured on one side of the first plate toward the second plate, wherein the first communicating groove and the second communicating groove are respectively arranged on the upstream and downstream sides of the filter tank; The position of the first flow channel opening is limited within the first communicating groove, and the position of the second flow channel opening is limited within the second communicating groove.

4. A wastewater resource treatment device according to claim 3, characterized in that: The number of the first flow channel openings and the number of the second flow channel openings on each first plate are both two, and the same number of first flow channel openings and second flow channel openings are constructed on each second plate at the position of the first flow channel opening on the corresponding first plate and at the position of the second flow channel opening.

5. A wastewater resource treatment device according to claim 4, characterized in that: The connecting portion between the first connecting groove and the filter groove and the connecting portion between the second connecting groove and the filter groove are both configured with a reversing groove, the reversing groove in the first connecting groove being located between the two first flow channel openings, and the reversing groove in the second connecting groove being located between the two second flow channel openings; A rotatable reversing member is provided inside each of the reversing grooves to control the on-off state of the two first flow passages in each of the first communicating grooves and the on-off state of the two second flow passages in each of the second communicating grooves, so that only one first flow passage in each of the filter units is connected to one of the second flow passages in the filter unit through the filter groove; A switching mechanism for controlling the rotation of each of the switching members is installed on the substrate.

6. The wastewater resource treatment device according to claim 5, characterized in that: The two pipe openings at both ends of each filter tube extend to the outside of the filter unit; The wastewater resource treatment device also includes a transmission mechanism, each of which includes several synchronous wheels, synchronous belts and drivers. Several of the synchronous wheels correspond one-to-one to several of the second pipe openings. The synchronous wheels are installed on the circumferential side of the second pipe openings. The synchronous belts are wound around several of the synchronous wheels so that the several synchronous wheels have a tendency to move synchronously. The driver includes an output shaft with controlled rotation, and a drive wheel is installed on the output shaft. The drive wheel is connected to the synchronous belt and tensions the synchronous belt.

Images