Sewage purification device

Abstract

The utility model discloses a sewage purification device which comprises a rotational flow cylinder and a filter cylinder which are coaxially arranged, the rotational flow cylinder is sleeved on the circumferential outer side of the filter cylinder, and an annular rotational flow space is formed between the circumferential inner wall surface of the rotational flow cylinder and the circumferential outer wall surface of the filter cylinder; the filter cartridge internally comprises a filler space and an after-filtration water purification tank, the after-filtration water purification tank is located above the filler space, and a suspended filler layer is arranged in the filler space; a primary sewage purification area is arranged in the rotational flow space, a secondary sewage purification area is arranged in the filler space, the suspended filler layer is a sewage filtering layer, the filtered clear water tank is a clear water storage area, and clear water in the clear water storage area can flow into the filler space to wash the suspended filler layer. Compared with a traditional rotational flow water purification device, the device has obvious superiority in the aspects of purification effect, structure simplification and treatment efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage purification device. Background Art

[0002] A hydrocyclone is a water purification device that uses a rotating flow to separate solids from liquids. It can also be used for concentration or dehydration. The liquid enters the cyclone along the supply pipe under pressure, and then rotates under the restriction of the wall. Coarse particles are thrown toward the wall due to the large inertial centrifugal force, and gradually flow downward and are discharged from the bottom to become sediment. Fine particles move toward the wall at a lower speed, and are driven by the liquid flowing toward the center to flow out of the overflow pipe and become overflow liquid. Due to the limited separation accuracy of the hydrocyclone, there are still fine particle impurities in the overflow liquid, which can still pollute the river environment. It needs to be reprocessed by other equipment later.

[0003] Patent CN215855430U discloses a high-efficiency cyclone sewage purification device. Sewage enters the cyclone separator. Under the action of the tangential force and gravity of the cyclone separator, the flocculants are initially separated and enter the conical bottom for sedimentation. The stable water flow enters the inclined plate upward to precipitate fine suspended matter, and then enters the filter area upward to intercept the residual dirt. The qualified clean water after multi-stage treatment is discharged from the water outlet. The device uses quartz sand with a density greater than water as the filter filler. The backwash water pipeline set in the filter assembly is used to wash away the dirt intercepted by the upper layer of the quartz sand. At the same time, a backwash air pipeline is provided to destroy the dirt that forms the compaction, which plays the role of water and gas mixing. The downward filtration form of quartz sand will increase the cost and maintenance difficulty of the equipment. On the one hand, the quartz sand filter layer requires a supporting layer and additional backwash water pipelines, and the structure is relatively more complicated. On the other hand, in order to make the backwashing relatively uniform, the distribution and gas volume of the air washer are relatively high.

[0004] Patent CN202478723U discloses a double cyclone water purifier, which is composed of three layers of tubes with different diameters. The upper part of the outer casing is provided with a water inlet leading to the primary cyclone cavity, and the lower part of the outer casing is provided with a dirt collection and sedimentation area and a sewage outlet; the middle surface of the intermediate casing is provided with an oblique cut for water inlet along the tangent direction, and the outer surface is wrapped with spiral cyclone blades and spiral cyclone lower blades, with gaps between the blades and the outer casing, and no gaps between the lower blades and the outer casing; the outer surface of the inner mesh tube skeleton is provided with a filter screen, which is connected to the purified water outlet. It realizes three filtering and purification functions: preliminary filtration, intermediate fine filtration and final filtration. The overall structure of the device is more complicated, and the filtering effect of the filter screen is poor.

[0005] In view of the above technical problems, the present utility model is specially introduced. Summary of the invention

[0006] The main purpose of the utility model is to provide a sewage purification device, which is used to propose a cyclone water purification device with better purification effect and simpler structure.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a sewage purification device, comprising a cyclone cylinder and a filter cylinder arranged coaxially, the cyclone cylinder is sleeved on the circumferential outer side of the filter cylinder, and an annular cyclone space is formed between the circumferential inner wall surface of the cyclone cylinder and the circumferential outer wall surface of the filter cylinder;

[0008] The filter cartridge includes a packing space and a post-filtration clean water pool, the post-filtration clean water pool is located above the packing space, and a suspended packing layer is arranged in the packing space;

[0009] The cyclone space is the primary sewage purification area, the filler space is the secondary sewage purification area, the suspended filler layer is the sewage filtration layer, and the filtered clean water pool is the clean water storage area. The clean water in the clean water storage area can flow into the filler space to flush the suspended filler layer.

[0010] Furthermore, the filter cartridge also includes an upper isolation layer, and the filler space and the post-filtration clean water pool are separated by the upper isolation layer.

[0011] Furthermore, the upper isolation layer has a porous structure.

[0012] Furthermore, an opening is provided at the bottom of the filter cartridge, and the filter cartridge is connected with the cyclone space through the opening.

[0013] Further, the upper isolation layer and the opening define a height of the filling space.

[0014] Further, the suspended filler layer has different height positions between the upper isolation layer and the opening according to the height of the water level.

[0015] Furthermore, an aeration tube is arranged in the packing space, and the aeration tube has an opening.

[0016] Furthermore, the distance between the aeration pipe and the upper isolation layer is greater than the thickness of the suspended filler layer.

[0017] Furthermore, the suspended filler layer is composed of suspended fillers, and the suspended fillers are in granular form.

[0018] Furthermore, the particle size of the suspended filler is larger than the pore size of the upper isolation layer.

[0019] Furthermore, the height of the filtered water purification pool is greater than the thickness of the suspended filler layer.

[0020] Furthermore, the particle size of the suspended filler ranges from 1 to 3 mm.

[0021] Furthermore, the thickness of the suspended filler layer ranges from 0.6 to 1.2 m.

[0022] Furthermore, the bottom of the cyclone cylinder is configured as a conical bottom, and the bottom of the filter cylinder is higher than the conical bottom.

[0023] Furthermore, a mud discharge channel is provided at the bottom of the conical bottom, and a mud discharge switch for controlling on and off is provided on the mud discharge channel.

[0024] Furthermore, the top height of the filter cartridge is greater than the height of the cyclone cartridge.

[0025] Furthermore, a water outlet pipe is provided on the top side wall of the filter cartridge.

[0026] Furthermore, a water inlet pipeline is arranged on the outside of the cyclone cylinder, and the water inlet pipeline leads into the cyclone space from the upper side wall of the cyclone cylinder.

[0027] Furthermore, a water inlet switch for controlling on and off is provided on the water inlet pipeline.

[0028] By applying the technical solution of the utility model, at least the following beneficial effects are achieved:

[0029] 1. This sewage purification device has a movable suspended filler layer built into the filter cartridge, eliminating the setting of structures such as the supporting layer, and adopts a design of reserving backwash water in the post-filtration clean water pool. There is no need to set up an additional backwash pipeline, which greatly simplifies the device structure, reduces the number of components, and reduces manufacturing and assembly costs.

[0030] 2. This sewage purification device adopts suspended fillers with a density lower than that of water, and further designs the specific parameters of the suspended fillers. Compared with filter fillers such as quartz sand, the requirements for aeration power and aeration uniformity of backwashing are lower, thereby reducing the manufacturing and maintenance costs of the aeration pipe and simplifying the structure of the device.

[0031] 3. This sewage purification device is equipped with a sludge discharge channel and a water inlet pipeline as well as a sludge discharge switch, a water inlet switch, etc. The water purification mode and the backwash mode of the device can be switched by simply controlling the two switches, which is convenient to operate.

[0032] 4. This sewage purification device can effectively separate and remove fine suspended matter after preliminary purification of the cyclone space by installing a suspended filler filter cartridge in the cyclone cartridge, thereby improving the sewage purification effect. The post-filtration clean water pool can achieve a better cleaning effect on the pollutants in the suspended filler after multiple uses. The entire device is highly durable and does not require additional power. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0034] Figure 1 A schematic diagram of a sewage purification device according to an embodiment is shown.

[0035] The above drawings include the following reference numerals:

[0036] 1. Cyclone tube; 2. Filter tube; 3. Conical bottom; 4. Suspended filler layer; 5. Post-filtration water pool; 6. Upper isolation layer; 7. Aeration pipe; 8. Opening; 9. Mud discharge channel; 10. Mud discharge switch; 11. Water inlet pipeline; 12. Water inlet switch; 13. Water outlet pipe. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] The present invention is further described in detail below in conjunction with specific embodiments, and these embodiments cannot be understood as limiting the scope of protection claimed by the present invention. The term "including" indicates the existence of a feature when used, but does not exclude the existence or addition of one or more other features; the orientation or position relationship indicated by the terms "lateral", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does 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 a limitation on the present invention; in addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0039] In the description, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0040] Example:

[0041] The utility model proposes a sewage purification device, such as Figure 1 As shown, it includes a coaxially arranged cyclone cylinder 1 and a filter cylinder 2, the cyclone cylinder 1 is sleeved on the circumferential outer side of the filter cylinder 2, and the filter cylinder 2 is fixed in the cyclone cylinder 1 through a supporting structure. An annular cyclone space is formed between the circumferential inner wall surface of the cyclone cylinder 1 and the circumferential outer wall surface of the filter cylinder 2. The sewage is cyclone purified in the cyclone space.

[0042] A filter packing is arranged in the filter cartridge 2, and the sewage after cyclone purification is subjected to secondary purification through the filter cartridge. The filter cartridge 2 includes a packing space and a post-filtration clean water pool 5, and the post-filtration clean water pool 5 is located above the packing space, and a suspended packing layer 4 is arranged in the packing space. The suspended packing layer 4 is composed of suspended packing, and the suspended packing is a packing with a density less than that of water.

[0043] Specifically, the cyclone space is a preliminary purification area for sewage, the packing space is a secondary purification area for sewage, the suspended packing layer 4 is a sewage filtration layer, and the filtered clean water tank 5 is a clean water storage area. The clean water in the clean water storage area can flow into the packing space to wash the suspended packing layer 4. Sewage enters the cyclone space from the outside of the cyclone cylinder for preliminary purification. At least part of the sewage after the preliminary purification flows into the packing space from the bottom of the filter cylinder in the direction against gravity, and is secondary purified under the action of the suspended packing layer and discharged from the upper part of the filtered clean water tank. At least part of the purified water after the secondary purification is retained in the filtered clean water tank and can flow into the packing space as a backwash liquid to wash the suspended packing layer.

[0044] The sewage purification device has a suspended filler layer built into the filter cartridge and utilizes the suspension characteristics to eliminate the previous support layer and other structures. It also adopts a design in which backwash water is reserved in the post-filtration clean water tank, and no additional backwash pipeline is required, thereby greatly simplifying the device structure, reducing the number of components, and reducing manufacturing and assembly costs.

[0045] The filter cartridge 2 further includes an upper isolation layer 6, and the filler space and the post-filtration clean water tank 5 are separated by the upper isolation layer 6. The upper isolation layer 6 has a porous structure, so that the filler space and the post-filtration clean water tank 5 are fluidically connected and the suspended filler is prevented from entering the post-filtration clean water tank 5.

[0046] In addition, the bottom of the filter cartridge 2 is provided with an opening 8, and the water in the cyclone space enters the filter cartridge through the opening 8. The size of the opening 8 may be the same as the cross section of the filter cartridge.

[0047] The height of the packing space is defined by the upper isolation layer 6 and the opening 8 spaced apart along the height direction of the filter cartridge 2. Due to the buoyancy of water, the suspended packing layer 4 has different height positions between the upper isolation layer 6 and the opening 8 according to the height of the water level.

[0048] The type and filling method of the suspended filler can be adjusted according to actual needs to achieve the best filtering effect. Preferably, the suspended filler is granular, and the particle shape can be: spherical, cylindrical or irregular. The particle size range of the suspended filler is 1 to 3 mm. The thickness range of the suspended filler layer 4 is 0.6 to 1.2 m. This suspended filler can effectively remove fine particles in the water after preliminary purification, thereby improving the purification effect.

[0049] The particle size of the suspended filler is larger than the pore size of the upper isolation layer 6 to prevent the suspended filler from leaking from the filler space to the post-filtration clean water pool. Preferably, the upper isolation layer 6 can be a grid plate or a mesh structure. In this embodiment, the lowest water level of the liquid in the filter cartridge during the backwashing process is controlled to prevent the suspended filler from leaking into the cyclone space. In some other embodiments, a grid plate or a mesh structure can also be set at the opening 8.

[0050] like Figure 1 As shown, an aeration pipe 7 is provided in the packing space, and the aeration pipe 7 has an opening. Aeration can be introduced into the packing space from outside the sewage purification device through the aeration pipe 7. Specifically, the distance between the aeration pipe 7 and the upper isolation layer 6 is greater than the thickness of the suspended packing layer 4. The height of the post-filtration clean water pool 5 is greater than the thickness of the suspended packing layer 4. In this way, the aeration effect and the backwash water have a better cleaning effect on the suspended packing.

[0051] The sewage purification device adopts a suspended filler with a density less than that of water and further designs the specific parameters of the suspended filler. Compared with filtering fillers such as quartz sand, the requirements for aeration power and aeration uniformity of backwashing are lower, thereby reducing the manufacturing and maintenance costs of the aeration pipe and simplifying the structure of the device.

[0052] In addition, the bottom of the cyclone 1 is set as a conical bottom 3, and the bottom of the filter cylinder 2 is higher than the conical bottom 3. A mud discharge channel 9 is set at the bottom of the conical bottom 3, and a mud discharge switch 10 for controlling on and off is set on the mud discharge channel 9.

[0053] The top height of the filter cartridge 2 is greater than the height of the cyclone cartridge 1. A water outlet pipe 13 is disposed on the top side wall of the filter cartridge 2.

[0054] A water inlet pipe 11 is arranged outside the cyclone drum 1, and the water inlet pipe 11 leads into the cyclone space from the upper side wall of the cyclone drum 1. A water inlet switch 12 for controlling on and off is arranged on the water inlet pipe 11.

[0055] The specific use process of this sewage purification device is as follows:

[0056] When the device is in water purification mode, the water inlet switch 12 needs to be turned on and the mud discharge switch 10 needs to be turned off. Raw water enters the cyclone space of the cyclone along the water inlet pipe 11 under pressure, and then makes a rotational motion under the restriction of the cylinder wall. Coarse particles are thrown to the cylinder wall due to the large inertial centrifugal force, and gradually flow downward and are discharged from the bottom of the conical bottom 3 to become sand. Fine particles move toward the cylinder wall at a lower speed, and are driven by the liquid flowing toward the center to enter from the bottom of the filter cylinder, and flow out after the fine particles are effectively filtered by the suspended filler. The water inlet flow rate can reach 300-2000m / d.

[0057] When the device is in backwash mode, close the water inlet switch 12, open the mud discharge switch 10, and turn on aeration. The filtered clean water reserved in the filtered clean water tank 5 flows downward into the filler space due to gravity, and combined with the aeration effect of the aeration pipe 7, the mixed layer of suspended fillers and pollutants is broken up, and the pollutants are separated by using the principle that the suspended fillers are lighter than water and the density of pollutants is greater than that of water. Under the action of the gravity of the filtered clean water and the small amount of air flow, the suspended filler can reach a fluffy state of 200%, which can achieve a better pollutant cleaning effect. When the water level in the filter cartridge drops to a certain position, the mud discharge switch 10 is automatically closed, and the backwash process is completed.

[0058] In summary, compared with the traditional cyclone water purification device, this device has obvious advantages in purification effect, structural simplification and processing efficiency. It can better solve the problems of poor purification effect and complex structure of the traditional cyclone water purification device, and provide a more efficient and reliable solution for purifying water sources. The whole device is durable and does not require additional power.

[0059] In summary, from the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0060] 1. This sewage purification device has a movable suspended filler layer built into the filter cartridge, eliminating the setting of structures such as the supporting layer, and adopts a design of reserving backwash water in the post-filtration clean water pool. There is no need to set up an additional backwash pipeline, which greatly simplifies the device structure, reduces the number of components, and reduces manufacturing and assembly costs.

[0061] 2. This sewage purification device adopts suspended fillers with a density lower than that of water, and further designs the specific parameters of the suspended fillers. Compared with filter fillers such as quartz sand, the requirements for aeration power and aeration uniformity of backwashing are lower, thereby reducing the manufacturing and maintenance costs of the aeration pipe and simplifying the structure of the device.

[0062] 3. This sewage purification device is equipped with a sludge discharge channel and a water inlet pipeline as well as a sludge discharge switch, a water inlet switch, etc. The water purification mode and the backwash mode of the device can be switched by simply controlling the two switches, which is convenient to operate.

[0063] 4. This sewage purification device can effectively separate and remove fine suspended matter after preliminary purification of the cyclone space by installing a suspended filler filter cartridge in the cyclone cartridge, thereby improving the sewage purification effect. The post-filtration clean water pool can achieve a better cleaning effect on the pollutants in the suspended filler after multiple uses. The entire device is highly durable and does not require additional power.

[0064] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sewage purification device, comprising a cyclone cylinder (1) and a filter cylinder (2) arranged coaxially, wherein the cyclone cylinder (1) is sleeved on the circumferential outer side of the filter cylinder (2), and an annular cyclone space is formed between the circumferential inner wall surface of the cyclone cylinder (1) and the circumferential outer wall surface of the filter cylinder (2); Features: The filter cartridge (2) comprises a packing space and a post-filtration clean water pool (5), wherein the post-filtration clean water pool (5) is located above the packing space, and a suspended packing layer (4) is arranged in the packing space; The cyclone space is a preliminary sewage purification area, the filler space is a secondary sewage purification area, the suspended filler layer (4) is a sewage filtration layer, and the filtered clean water pool (5) is a clean water storage area. The clean water in the clean water storage area can flow into the filler space to flush the suspended filler layer (4).

2. The sewage purification device according to claim 1, characterized in that: The filter cartridge (2) further comprises an upper isolation layer (6), and the filler space and the post-filtration clean water pool (5) are separated by the upper isolation layer (6).

3. The sewage purification device according to claim 2, characterized in that: The upper isolation layer (6) has a porous structure.

4. The sewage purification device according to claim 3, characterized in that: An opening (8) is provided at the bottom of the filter cartridge (2), and the filter cartridge (2) is connected to the cyclone space through the opening (8).

5. The sewage purification device according to claim 4, characterized in that: The upper insulating layer (6) and the opening (8) define the height of the filler space.

6. The sewage purification device according to claim 5, characterized in that: The suspended filler layer (4) has different height positions between the upper isolation layer (6) and the opening (8) according to the height of the water level.

7. The sewage purification device according to claim 2, characterized in that: An aeration pipe (7) is arranged in the packing space, and the aeration pipe (7) has an opening.

8. The sewage purification device according to claim 7, characterized in that: The distance between the aeration pipe (7) and the upper isolation layer (6) is greater than the thickness of the suspended filler layer (4).

9. The sewage purification device according to claim 4, characterized in that: The suspended filler layer (4) is composed of suspended fillers, and the suspended fillers are in granular form.

10. The sewage purification device according to claim 9, characterized in that: The particle size of the suspended filler is larger than the pore size of the upper isolation layer (6).

11. The sewage purification device according to claim 9, characterized in that: The height of the post-filtration clean water pool (5) is greater than the thickness of the suspended filler layer (4).

12. The sewage purification device according to claim 11, characterized in that: The particle size of the suspended filler is in the range of 1 to 3 mm.

13. The sewage purification device according to claim 11, characterized in that: The thickness of the suspended filler layer (4) is in the range of 0.6 to 1.2 m.

14. The sewage purification device according to claim 1, characterized in that: The bottom of the cyclone cylinder (1) is arranged as a conical bottom (3), and the bottom of the filter cylinder (2) is higher than the conical bottom (3).

15. The sewage purification device according to claim 14, characterized in that: A mud discharge channel (9) is provided at the bottom of the conical bottom (3), and a mud discharge switch (10) for controlling on and off is provided on the mud discharge channel (9).

16. The sewage purification device according to claim 1, characterized in that: The top height of the filter cylinder (2) is greater than the height of the cyclone cylinder (1).

17. The sewage purification device according to claim 16, characterized in that: A water outlet pipe (13) is provided on the top side wall of the filter cartridge (2).

18. The sewage purification device according to claim 1, characterized in that: A water inlet pipeline (11) is arranged on the outside of the cyclone cylinder (1), and the water inlet pipeline (11) leads into the cyclone space from the upper side wall of the cyclone cylinder (1).

19. The sewage purification device according to claim 18, characterized in that: The water inlet pipeline (11) is provided with a water inlet switch (12) for controlling on and off.

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