Sewage recycling device and process based on near-zero discharge water treatment technology

Abstract

The invention discloses a sewage recycling device and process based on a near-zero discharge water treatment technology, the sewage recycling device structurally comprises a shell, an upper flange, a middle shaft, a flow guide disc, a membrane and a lower flange, the shell is assembled between the upper flange and the lower flange, and the middle shaft penetrates through the upper flange and the lower flange and is located at the center; the flow guide disc comprises a main disc, rotating bodies, convex edges, cambered surfaces, guide bodies, convex cores, grooves and communication ports, the cambered surfaces and the main disc are of an integrated structure, the rotating bodies are assembled on the upper surface and the lower surface of the main disc, the convex edges are installed on the surface of an outer ring of the main disc, the guide bodies are fixed to the surfaces of the cambered surfaces, the convex cores are installed on the surface of an inner ring of the main disc, and the grooves and the convex cores are of an integrated structure. When sewage flows between the flow guide disc and the membrane, the sewage is intercepted and filtered by the intercepting membrane, and the intercepting membrane is elastically supported by the internal elastic body while the sewage impacts the flow of the intercepting membrane, so that the intercepting membrane is prevented from being attached to the surface of the main disc through the force of water flow to influence the flow of the sewage.

Description

Technical Field

[0001] The present invention belongs to the field of sewage reuse treatment, and more specifically, especially relates to a sewage reuse device and process based on near-zero discharge water treatment technology. Background Art

[0002] The near-zero-emission water treatment and sewage reuse device is a highly efficient water treatment equipment. Its main function is to achieve near-zero emission and reuse of sewage after treatment. Through a series of physical, chemical or biological treatment processes, the pollutants in the sewage are removed or reduced to a certain level so that the treated water quality meets the reuse requirements. It is mainly used in factories, hospitals, residences and other places where sewage is generated.

[0003] Based on the above findings, the existing near-zero discharge water treatment has the following main shortcomings, such as: When sewage is undergoing near-zero discharge treatment, it needs to go through a reverse osmosis process to meet the water quality requirements for reuse. The reverse osmosis separates the clean water from the concentrated water through an internal membrane. However, since the membrane structure is relatively simple and thin, it is easy for the membrane to adhere to the surface of the guide plate through the impact of the water flow, or the inside of the membrane itself becomes damp, making it difficult for the water to flow further.

[0004] Therefore, it is necessary to propose a sewage reuse device and process based on near-zero discharge water treatment technology. Summary of the invention

[0005] In order to solve the above technical problems, the purpose and effect of the sewage reuse device and process based on the near-zero discharge water treatment technology of the present invention are achieved by the following specific technical means: Its structure includes a shell, an upper flange, a middle axis, a guide plate, a diaphragm, and a lower flange. The shell is assembled between the upper flange and the lower flange. The middle axis passes through the upper flange and the lower flange and is located at the center. The guide plate and the diaphragm are stacked and arranged at intervals. The guide plate includes a main plate, a swivel, a convex edge, a curved surface, a guide body, a convex core, a groove, and a connection port. The curved surface and the main plate are an integrated structure. The swivel is assembled on the upper and lower surfaces of the main plate. The convex edge is installed on the outer ring surface of the main plate. The guide body is fixed on the curved surface. The convex core is installed on the inner ring surface of the main plate. The groove and the convex core are an integrated structure. The connection port and the main plate are an integrated structure. The swivel is a flexibly rotatable round body and is evenly distributed in a circle. The protruding part of the convex edge forms a drop space with the main plate to assist liquid flow. The convex core and the main plate form a plane drop to clamp the diaphragm. The groove is adapted to the buckle with the central axis. The guide body is located on the curved surface and is evenly distributed in a circle. The guide plate is a symmetrical structure with the same double sides. The diaphragm includes an intercepting membrane, an inner grid, a fixed block, and an elastic body. The inner grid is the internal space of the intercepting membrane. The fixed block is assembled inside the inner grid. The elastic body and the fixed block are an integrated structure. The fixed block is clamped between two convex cores. The fixed block and the elastic body are provided with four circular shapes evenly distributed in the inner grid. The elastic body supports the two layers of the intercepting membrane through its own thickness. The height difference formed by the main plate and the convex edge, when the two guide plates are combined and stacked, the space formed in the middle can guide and limit the flow space of sewage.

[0006] As a further improvement of the present invention, the head of the swivel is a semicircular structure, and the swivel in the inverted state of the lower half of the main disk can further guide, collect and drain the liquid. The swivel can easily rotate while the liquid flows, so that the liquid can have a certain impact force to further flush the surface of the main disk. The curved surface is a curved surface structure that assists the flow direction of the liquid. The guide body further guides the general flow direction of the liquid, and the connecting ports are evenly distributed in a circle.

[0007] As a further improvement of the present invention, the elastic body itself is elastic, and when the liquid flows between the interception membranes, it plays a supporting and buffering role. The elastic body elastically supports the interception membrane to prevent the interception membrane from being adhered to the surface of the main disk or to the inside of the main disk in a double layer when the liquid impacts the interception membrane. The elastic body supports the double layer of the interception membrane in a cross state to prevent impact and adhesion during the flow of sewage.

[0008] As a further improvement of the present invention, the lower flange includes a top plate, a water inlet, a water inlet, a water production channel, a water production port, and a concentrate water port. The water inlet is connected to the water inlet, the water production channel is connected to the water production port, the top plate is located inside the outer shell, the concentrate water port is located below the guide plate, the upper end of the water inlet is connected to the space outside the guide plate and the inner side of the outer shell, the water production channel is located at the inner circle of the diaphragm, and the top plate is separated from the space where the water inlet and the concentrate water port are connected by an assembly space of the guide plate.

[0009] As a further improvement of the present invention, the concentrate outlet includes a rotating shaft, a scraper, and a support rod. The support rod is sleeved on the outer ring of the rotating shaft for support. The scraper is installed on the outer surface of the rotating shaft. There are two groups of scrapers that are symmetrically structured and evenly distributed. The rotating shaft and the scraper are rotated by the flow impact of the liquid. The scraper rotates during the flow of sewage to scrape the inner surface of the pipe to prevent sticky residue.

[0010] As a further improvement of the present invention, a sewage reuse process based on near-zero discharge water treatment technology, the sewage reuse device based on near-zero discharge water treatment technology, the treatment process of which is as follows: S1. The sewage is placed in the raw water tank and transported to the multi-media filter through the raw water pump. After the multi-media filter has finished processing, the sewage is transferred to the ultrafiltration equipment. The concentrated water produced by the treatment is transported back to the raw water tank again. The sewage after ultrafiltration will be transported to the ultrafiltration water tank; S2. The ultrafiltration water tank connects the sewage to the water inlet through the water inlet, and the sewage is transported to the top of the guide plate through the space between the outer shell and the guide plate. The sewage will be transported to the connection port along the main plate; S3. A membrane is sandwiched between the two guide plates. When the sewage is transported layer by layer between the main plate and the connection port, the membrane can further filter the sewage and allow the sewage to enter the inner grid through the intercepting membrane; S4. After the diaphragm intercepts and filters the sewage, the clean water passes through the inner grid and flows along the water production channel to the water production port and is taken out to the recycling water tank; S5. The sewage at the bottom is filtered layer by layer in the guide plate and then discharged to the concentrate tank through the concentrate outlet.

[0011] The membrane is located between the two guide plates, so that the sewage flows in a U-shaped route.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. When the sewage flows between the guide plate and the membrane, it is intercepted and filtered by the interception membrane. While the sewage flows and impacts the interception membrane, the internal elastic body elastically supports the interception membrane to prevent the interception membrane from sticking to the surface of the main plate through the force of the water flow and affecting the flow of sewage. The thickness of the elastic body itself is used to support the upper and lower layers of the interception membrane, so that the sewage can be processed and flow smoothly.

[0013] 2. The arc surface is an arc surface structure. When the two guide plates are assembled together, the arc surface will form a U-shaped surface, which can guide the sewage to a certain extent during the flow process and increase the impact force. The guide body protrudes from the arc surface, which can guide the sewage to a certain direction.

[0014] 3. When the sewage is on the surface of the main plate and flows toward the connection port, the flow of sewage will cause the rotor to rotate. The rotation of the rotor will give the sewage a certain impact force to further flush the surface of the main plate. The fixed position of the rotor can also further give the sewage on both sides a certain impact force. The rotor has a round head structure. When the sewage flows to the lower end of the main plate, the rotor can guide and collect the drainage sewage to prevent the remaining sewage from hanging on the surface of the main plate.

[0015] 4. When the concentrate outlet is discharging concentrate, the impact of the water flow drives the rotating shaft and the scraper to rotate, further scraping the inner surface of the pipe to prevent stains in the concentrate from remaining in the pipe and affecting transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a sewage reuse device based on near-zero discharge water treatment technology of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the guide plate of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the diaphragm of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the assembly of the guide plate and the diaphragm of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the lower flange of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the concentrate outlet of the present invention.

[0022] Figure 7 It is a schematic flow diagram of the sewage reuse process of the near-zero discharge water treatment technology of the present invention.

[0023] In the figure: outer shell 1, upper flange 2, middle axis 3, guide plate 4, diaphragm 5, lower flange 6, main plate 41, swivel 42, convex edge 43, arc surface 44, guide body 45, convex core 46, groove 47, connection port 48, intercepting membrane 51, inner grid 52, fixing block 53, elastic body 54, top plate 61, water inlet 62, water inlet 63, water production channel 64, water production port 65, concentrated water port 66, rotating shaft 21, scraper 22, support rod 23. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings: Example 1

[0025] As attached Figure 1 To Attachment Figure 4 As shown: The present invention provides a sewage reuse device and process based on near-zero discharge water treatment technology, the structure of which includes a shell 1, an upper flange 2, a middle axis 3, a guide plate 4, a diaphragm 5, and a lower flange 6. The shell 1 is assembled between the upper flange 2 and the lower flange 6, the middle axis 3 penetrates the upper flange 2 and the lower flange 6 and is located at the center, and the guide plate 4 and the diaphragm 5 are stacked and arranged at intervals; The guide plate 4 includes a main plate 41, a rotating body 42, a convex edge 43, a curved surface 44, a guide body 45, a convex core 46, a groove 47, and a connection port 48. The curved surface 44 and the main plate 41 are an integrated structure. The rotating body 42 is assembled on the upper and lower surfaces of the main plate 41, the convex edge 43 is installed on the outer ring surface of the main plate 41, the guide body 45 is fixed on the surface of the curved surface 44, the convex core 46 is installed on the inner ring surface of the main plate 41, and the groove 47 and the convex core 46 are integrated. The connecting port 48 and the main plate 41 are integrated structures, the rotating body 42 is a rotatable round body and is evenly distributed in a circle, the protruding part of the convex edge 43 forms a drop space with the main plate 41 to assist the flow of liquid, the convex core 46 and the main plate 41 form a plane drop to clamp the diaphragm 5, the groove 47 is adapted to the buckle with the central axis 3, the guide body 45 is located on the surface of the arc surface 44 and is evenly distributed in a circle, and the guide plate 4 is a symmetrical structure with the same double sides; The diaphragm 5 includes an intercepting membrane 51, an inner grid 52, a fixing block 53, and an elastic body 54. The inner grid 52 is the internal space of the intercepting membrane 51, and the fixing block 53 is assembled inside the inner grid 52. The elastic body 54 and the fixing block 53 are an integrated structure. The fixing block 53 is clamped between two convex cores 46. The fixing block 53 and the elastic body 54 are provided with four circular shapes evenly distributed in the inner grid 52. The elastic body 54 supports the two layers of the intercepting membrane 51 through its own thickness. The height difference formed by the main plate 41 and the convex edge 43, when the two guide plates 4 are combined and stacked, the space formed in the middle can guide and limit the flow space of sewage. The diaphragm 5 is clamped inside the space formed by the two guide plates 4. The sewage is intercepted and guided by the diaphragm 5 so that it will not be directly connected from the connection port 48. It needs to flow through a certain distance before connecting to the next connection port 48.

[0026] Among them, the head of the swivel 42 is a semicircular structure. The swivel 42 in the inverted state of the lower half of the main plate 41 can further guide, collect and drain the liquid. The swivel 42 can easily rotate while the liquid flows, so that the liquid can have a certain impact to further flush the surface of the main plate 41. The arc surface 44 is an arc surface structure to assist the flow direction of the liquid. The guide body 45 further guides the general flow direction of the liquid. The connection ports 48 are evenly distributed in a circle. The arc height of the arc surface 44 can allow the sewage to have a certain flow impact.

[0027] Among them, the elastic body 54 itself has elasticity, and when the liquid flows between the interception membranes 51, it plays a supporting and buffering role. The elastic body 54 elastically supports the interception membrane 51 to prevent the interception membrane 51 from being adhered to the surface of the main disk 41 or double-layered inside the main disk 41 when the liquid impacts the interception membrane 51. The elastic body 54 supports the double layer of the interception membrane 51 in a cross state to prevent impact and adhesion during the flow of sewage. The interior of the inner grid 52 is connected to the water production channel 64, and the convex core 46 clamps the fixing block 53 while preventing unfiltered sewage from running into the water production channel 64.

[0028] The specific usage and function of this embodiment are as follows: In the present invention, when the ultrafiltration water tank connects the sewage to the inside of the shell 1 through the water inlet 63, the sewage will be moved to the top of the guide plate 4 through continuous input, and the sewage will be guided to flow to the surface of the main plate 41 through the curvature of the curved surface 44 and the angle of the guide body 45. During the flow of sewage, the rotating body 42 will be rotated by force, so that the sewage can have a certain impact with the assistance of the rotating body 42, and the surface of the main plate 41 is further washed to prevent a large amount of stains from remaining on the surface. The sewage at the top flows to the next layer through the connection port 48, and the rotating body 42 at the bottom of the main plate 41 will guide the collection and drainage through its own round head structure. The fixed block 53 of the diaphragm 5 is clamped between the two guide plates 4 through the convex core 46. When the sewage flows into the next layer of guide plates 4 through the connection port 48, the sewage is intercepted and filtered by the interception membrane 51. The membrane 5 is sandwiched between the two guide plates 4, so that the sewage needs to pass through a U-shaped route to flow to the next connection port 48, and then further intercept and filter through the interception membrane 51 of the next layer. When the sewage flows between the guide plate 4 and the membrane 5, the interception membrane 51 is elastically supported by the elastic body 54 to prevent the double-layer of the interception membrane 51 from sticking to itself or to the surface of the main plate 41, so as to avoid affecting the flow trajectory of the sewage. The filtered clean water is output to the water outlet 65 through the inner grid 52, and the concentrated water will flow layer by layer along the guide plate 4 to the bottom and be output from the concentrated water outlet 66.

[0029] Example 2

[0030] As attached Figure 5 To Attachment Figure 7 As shown: Among them, the lower flange 6 includes a top plate 61, a water inlet 62, a water inlet 63, a water production channel 64, a water production port 65, and a concentrated water port 66. The water inlet 62 is connected to the water inlet 63, the water production channel 64 is connected to the water production port 65, the top plate 61 is located inside the shell 1, the concentrated water port 66 is located below the guide plate 4, the upper end of the water inlet 62 is connected to the space outside the guide plate 4 and the inner side of the shell 1, the water production channel 64 is located at the inner circle of the diaphragm 5, the top plate 61 is separated from the space connected to the water inlet 62 and the concentrated water port 66 by the assembly space of the guide plate 4, and the assembly space between the diaphragm 5 and the convex core 46 separates the space connected to the concentrated water port 66 and the water production channel 64.

[0031] Among them, the concentrated water outlet 66 includes a rotating shaft 21, a scraper 22, and a support rod 23. The support rod 23 is sleeved on the outer ring of the rotating shaft 21 for support. The scraper 22 is installed on the outer surface of the rotating shaft 21. The scraper 22 is provided with two groups of symmetrical structures and evenly distributed. The rotating shaft 21 and the scraper 22 are rotated by the flow impact of the liquid. The scraper 22 rotates during the flow of sewage to scrape the inner surface of the pipe to prevent adhesion residue. The upper end of the scraper 22 is an arc structure to prevent impurities from hanging on the top.

[0032] Among them, the sewage reuse process based on the near-zero discharge water treatment technology, the sewage reuse device based on the near-zero discharge water treatment technology, its treatment process is as follows: S1. The sewage is placed in the raw water tank and transported to the multi-media filter through the raw water pump. After the multi-media filter has finished processing, the sewage is transferred to the ultrafiltration equipment. The concentrated water produced by the treatment is transported back to the raw water tank again. The sewage after ultrafiltration will be transported to the ultrafiltration water tank; S2, the ultrafiltration water tank connects the sewage into the water inlet 62 through the water inlet 63, and the sewage is transported to the top of the guide plate 4 through the space between the shell 1 and the guide plate 4, and the sewage will be transported to the connection port 48 along the main plate 41; S3. A membrane 5 is sandwiched between the two guide plates 4. When the sewage flows layer by layer along the main plate 41 and the connection port 48, the membrane 5 can further filter the sewage and allow the sewage to enter the inner compartment 52 through the intercepting membrane 51; S4, after the membrane 5 intercepts and filters the sewage, the clean water passes through the inner grid 52 along the water production channel 64 and is taken out from the water production port 65 to the recycling water tank; S5. The sewage at the bottom is filtered layer by layer in the guide plate 4 and is taken out from the concentrate outlet 66 to the concentrate tank.

[0033] The membrane 5 is located between the two guide plates 4, so that the sewage flows in a U-shaped route. The scraper 22 rotates along with the water flow when the sewage is discharged to assist in the smooth discharge of the sewage.

[0034] The specific usage and function of this embodiment are as follows: In the present invention, sewage is connected to the water inlet 62 through the water inlet 63 for transportation. After the sewage enters the guide plate 4 and the diaphragm 5 for layer-by-layer filtration, the clean water filtered and intercepted by the diaphragm 5 is transported to the reuse water tank through the water production channel 64 to the water production port 65, and the concentrated water is output from the concentrated water port 66 through the bottom layer of the guide plate 4. During the flow of concentrated water, the rotating shaft 21 is supported by the support rod 23 to drive the scraper 22 to rotate, and further scrape the inner wall of the pipe. The upper end of the scraper 22 is a curved structure to prevent impurities from remaining. Under the flushing of the concentrated water and the scraping of the scraper 22, the concentrated water will be connected to the inside of the concentrated water tank.

[0035] Utilizing the technical solution of the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A sewage recycling device based on near-zero discharge water treatment technology, the structure of which comprises a shell (1), an upper flange (2), a middle shaft (3), a guide plate (4), a diaphragm (5), and a lower flange (6), wherein the shell (1) is assembled between the upper flange (2) and the lower flange (6), the middle shaft (3) penetrates the upper flange (2) and the lower flange (6) and is located at the center, and the guide plate (4) and the diaphragm (5) are stacked and arranged in an interval, and the characteristics are: The guide plate (4) comprises a main plate (41), a rotating body (42), a convex edge (43), a curved surface (44), a guide body (45), a convex core (46), a groove (47), and a connection port (48); the curved surface (44) and the main plate (41) are an integrated structure; the rotating body (42) is mounted on the upper and lower surfaces of the main plate (41); the convex edge (43) is mounted on the outer ring surface of the main plate (41); the guide body (45) is fixed to the surface of the curved surface (44); the convex core (46) is mounted on the inner ring surface of the main plate (41); the groove (47) and the convex core are connected to each other. (46) is an integrated structure, the connection port (48) and the main disk (41) are an integrated structure, the rotating body (42) is a rotatable round body and is evenly distributed in a circular shape, the protruding portion of the convex edge (43) and the main disk (41) form a drop space to assist liquid flow, the convex core (46) and the main disk (41) form a plane drop to clamp the diaphragm (5), the groove (47) and the central axis (3) are adapted to snap fit, the guide body (45) is located on the surface of the arc surface (44) and is evenly distributed in a circular shape, and the guide disk (4) is a symmetrical structure with the same double sides; The diaphragm (5) comprises an intercepting membrane (51), an inner grid (52), a fixing block (53), and an elastic body (54); the inner grid (52) is the internal space of the intercepting membrane (51); the fixing block (53) is assembled inside the inner grid (52); the elastic body (54) and the fixing block (53) are an integrated structure; the fixing block (53) is clamped between two convex cores (46); the fixing block (53) and the elastic body (54) are provided with four circular shapes evenly distributed in the inner grid (52); the elastic body (54) supports the two layers of the intercepting membrane (51) through its own thickness.

2. The sewage recycling device based on near-zero discharge water treatment technology according to claim 1 is characterized in that: The head of the rotating body (42) is a semicircular structure. The rotating body (42) in the inverted state of the lower half of the main plate (41) can further guide, collect and drain the liquid. The rotating body (42) can easily rotate while the liquid is flowing, so that the liquid can have a certain impact force, further flushing the surface of the main plate (41). The curved surface (44) is a curved surface structure that assists the flow direction of the liquid. The guide body (45) further guides the general flow direction of the liquid.

3. The sewage recycling device based on near-zero discharge water treatment technology according to claim 1 is characterized in that: The elastic body (54) itself has elasticity, and when the liquid flows between the interception membranes (51), it plays a supporting and buffering role. The elastic body (54) elastically supports the interception membrane (51) to prevent the interception membrane (51) from being adhered to the surface of the main plate (41) or the inside of the main plate (41) in a double layer.

4. The sewage recycling device based on near-zero discharge water treatment technology according to claim 1 is characterized in that: The lower flange (6) comprises a top plate (61), a water inlet (62), a water inlet (63), a water production channel (64), a water production port (65), and a concentrated water port (66); the water inlet (62) is connected to the water inlet (63); the water production channel (64) is connected to the water production port (65); the top plate (61) is located inside the outer shell (1); the concentrated water port (66) is located below the guide plate (4); the upper end of the water inlet (62) is connected to the space between the outer side of the guide plate (4) and the inner side of the outer shell (1); and the water production channel (64) is located at the inner circle of the diaphragm (5).

5. The sewage recycling device based on near-zero discharge water treatment technology according to claim 4 is characterized in that: The concentrated water outlet (66) comprises a rotating shaft (21), a scraper (22), and a support rod (23); the support rod (23) is sleeved on the outer ring of the rotating shaft (21) for support; the scraper (22) is mounted on the outer surface of the rotating shaft (21); two groups of scrapers (22) are symmetrically structured and evenly distributed; the rotating shaft (21) and the scraper (22) rotate due to the flow impact of the liquid.

6. The sewage reuse process based on near-zero discharge water treatment technology is characterized by: The sewage recycling device based on the near-zero discharge water treatment technology described in any one of claims 1 to 5 is adopted, and its treatment process is as follows: S1. The sewage is placed in the raw water tank and transported to the multi-media filter through the raw water pump. After the multi-media filter has finished processing, the sewage is transferred to the ultrafiltration equipment. The concentrated water produced by the treatment is transported back to the raw water tank again. The sewage after ultrafiltration will be transported to the ultrafiltration water tank; S2, the ultrafiltration water tank connects the sewage to the water inlet (62) through the water inlet (63), and the sewage is transported to the top of the guide plate (4) through the space between the outer shell (1) and the guide plate (4), and the sewage is transported along the main plate (41) to the connection port (48); S3. A membrane (5) is sandwiched between the two guide plates (4). When the sewage is transported layer by layer between the main plate (41) and the connection port (48), the membrane (5) can further filter the sewage and allow the sewage to pass through the intercepting membrane (51) and enter the inner compartment (52); S4, after the membrane (5) intercepts and filters the sewage, the clean water passes through the inner grid (52) along the water production channel (64) and is taken out from the water production port (65) to the recycling water tank; S5. The sewage is filtered layer by layer in the guide plate (4) and then discharged to the bottom through the concentrate outlet (66) to the concentrate tank.

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