Wastewater treatment device
By integrating the stirring and solid-liquid separation devices in the same reaction chamber in the wastewater treatment device and using the anti-disturbance ring to optimize solid-liquid separation, the problem of insufficient space is solved, the integration of stirring and solid-liquid separation is achieved, and the wastewater treatment efficiency is improved.
Patent Information
- Application Number
- CN202422643381.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing wastewater treatment equipment cannot meet the needs of solid-liquid separation due to insufficient space, and cannot achieve the integration of stirring and solid-liquid separation.
A wastewater treatment device is designed. A stirring device and a solid-liquid separation device are set in the same reaction chamber. A stirring motor drives the stirring blades for stirring, and solid-liquid separation is achieved by an anti-disturbance ring. The anti-disturbance rings are arranged at intervals along the height direction of the reaction chamber. The blades are designed to have an upward rotation angle of 30° to 60°, and the number and density of the blades are gradually changed to optimize the separation effect.
It realizes the integration of stirring and solid-liquid separation in the same reaction chamber, improves the wastewater treatment effect, does not require additional space or equipment, and ensures the efficient solid-liquid separation.
Smart Images
Figure CN223409427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wastewater treatment, in particular to a wastewater treatment device. Background Art
[0002] Wastewater treatment processes typically include common processes such as stirring and sedimentation (solid-liquid separation). Currently, solid-liquid separation is generally achieved in three ways: 1. Sedimentation separation, which involves stopping the aeration or stirring device, or pumping the solid-liquid mixture into another treatment tank or container. These measures, in principle, reduce disturbances and allow solids to settle to achieve solid-liquid separation. 2. Membrane separation technology, which involves using filter cloths, filter bags, or membranes with finer pores to allow liquid to pass through while retaining solids, allowing solid-liquid separation. 3. Centrifugal separation, which involves using the different centripetal forces between solids and liquids to aggregate the solids and separate them from the liquid.
[0003] However, in some sewage treatment processes, there are some special cases that do not meet the requirements of setting up a separate site or equipment for separation. In this case, the existing treatment processes and equipment cannot meet the needs.
[0004] In view of this, it is necessary to provide an improved wastewater treatment device to solve the above technical problems. Utility Model Content
[0005] The utility model provides a wastewater treatment device, aiming to overcome the phenomenon in the prior art that the space is insufficient for installing separation equipment.
[0006] In order to achieve one of the above-mentioned purposes of the utility model, the utility model adopts the following technical solutions:
[0007] A wastewater treatment device comprises a reactor having a reaction chamber, a water inlet pipe connected to the bottom of the reaction chamber, a water outlet pipe connected to the top of the reaction chamber, a stirring device and a solid-liquid separation device; the stirring device comprises a stirring motor, a driving rod connected to the stirring motor, and a stirring blade located on the driving rod, and the stirring blade is located at the bottom of the reaction chamber; the solid-liquid separation device comprises at least two anti-disturbance rings arranged at intervals along the height direction of the reaction chamber, and the anti-disturbance ring is located between the connection between the water outlet pipe and the reaction chamber and the stirring blade.
[0008] In one embodiment, the stirring motor is located above the reactor, and the driving rod extends from top to bottom into the reaction chamber; and / or the stirring blade is not higher than the connection between the water inlet pipe and the reaction chamber.
[0009] In one embodiment, the anti-disturbance ring includes an inner ring, a plurality of blades extending outward from the inner ring, and an outer ring connected to an end of the blades away from the inner ring, and the outer ring is fixed to the reactor.
[0010] In one embodiment, the blade is an upward rotating blade, and the upward rotating angle of the upward rotating blade is 30° to 60°.
[0011] In one embodiment, the upward rotation angle of the blades of the anti-disturbance ring gradually increases from bottom to top.
[0012] In one embodiment, the arrangement density of the anti-disturbance rings gradually increases from bottom to top.
[0013] In one embodiment, in the height direction of the reaction chamber, at least some of the anti-disturbance rings have different heights; and / or at least some of the distances between adjacent anti-disturbance rings are different.
[0014] In one embodiment, "at least some of the anti-disturbance rings have different heights" includes: all of the anti-disturbance rings have different heights, and the thickness of the anti-disturbance rings gradually increases from bottom to top; or, at least two of the anti-disturbance rings have different thicknesses, and the thickness of the upper anti-disturbance ring is greater than the thickness of the lower anti-disturbance ring.
[0015] In one embodiment, "the distances between at least some adjacent anti-disturbance circles are different" includes: the distances between all adjacent anti-disturbance circles are different, and the distances between adjacent anti-disturbance circles gradually decrease from bottom to top; or, the distances between at least two adjacent anti-disturbance circles are different, and the distance between the two adjacent anti-disturbance circles located above is smaller than the distance between the two adjacent anti-disturbance circles located below.
[0016] In one embodiment, the number of blades in the anti-disturbance ring is 2 to 8.
[0017] In one embodiment, different anti-disturbance rings have different numbers of blades; and the number of blades in the anti-disturbance ring increases gradually from bottom to top.
[0018] In one embodiment, all the anti-disturbance rings have the same number of blades.
[0019] The beneficial effects of the present invention are as follows: the wastewater treatment device of the present invention incorporates a stirring device and a solid-liquid separation device within the same reaction chamber. Wastewater enters the bottom of the reaction chamber from the water inlet pipe, where it is stirred by the stirring device, achieving thorough mixing of solids and liquids, thereby improving the wastewater treatment effect. The mixed wastewater passes from bottom to top through the solid-liquid separation device, where solid particles are separated. Upon reaching the top, the mixed wastewater becomes clear and is discharged from the outlet pipe. The wastewater treatment device achieves the purpose of integrated "stirring-solid-liquid separation" without requiring a separate site or equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a wastewater treatment device according to the present invention;
[0021] Figure 2 It is a structural schematic diagram of the solid-liquid separator of the present utility model.
[0022] 100-wastewater treatment device, 1-reaction chamber, 11-reaction chamber, 12-solid hopper, 2-water inlet pipe, 3-water outlet pipe, 4-stirring device, 41-stirring motor, 42-driving rod, 43-stirring blade, 5-anti-disturbance ring, 51-inner ring, 52-blade, 53-outer ring, 6-sludge discharge port. DETAILED DESCRIPTION
[0023] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.
[0024] In the various drawings of the present invention, for the convenience of illustration, certain dimensions of structures or parts are exaggerated relative to other structures or parts. Therefore, they are only used to illustrate the basic structure of the subject matter of the present invention.
[0025] like Figures 1 and 2 As shown, the utility model provides a wastewater treatment device 100, including a reactor 1 having a reaction chamber 11, a water inlet pipe 2 connected to the bottom of the reaction chamber 11, a water outlet pipe 3 connected to the top of the reaction chamber 11, a stirring device 4 at least partially located in the reaction chamber 11, and a solid-liquid separation device located in the reaction chamber 11.
[0026] The reactor 1 and the reaction chamber 11 extend in the height direction and are cylindrical in shape as a whole. The cross section after being cut in the horizontal direction is a circle, a regular polygon or other irregular shapes.
[0027] The reactor 1 further includes a solid hopper 12 and a sludge discharge port 6 at the bottom for regularly discharging sludge.
[0028] Wastewater enters the bottom of the reaction chamber 11 through the water inlet pipe 2. Stirring by the stirring device 4 achieves thorough mixing of solids and liquids, improving wastewater treatment efficiency. The mixed wastewater flows upward through the solid-liquid separation device to separate solid particles. Upon reaching the top, the wastewater becomes clear and is discharged through the water outlet pipe 3. The wastewater treatment device 100 achieves the integrated "stirring and solid-liquid separation" function.
[0029] The stirring device 4 includes a stirring motor 41 , a driving rod 42 connected to the stirring motor 41 , and a stirring blade 43 located on the driving rod 42 .
[0030] Taking into account that the general reactor 1 is set to be open at the top or have an openable top cover, the utility model arranges the stirring motor 41 above the reactor 1, and the driving rod 42 extends from top to bottom into the reaction chamber 11. There is no need to open holes on the bottom wall and side wall of the reactor 1. The assembly is simple and convenient for subsequent maintenance or cleaning.
[0031] The stirring blades 43 are located at the bottom of the reaction chamber 11 and can fully stir the incoming water. The stirring blades 43 are at a certain distance from the water outlet pipe 3 at the top to avoid unnecessary disturbance to the water in the water outlet area.
[0032] In one embodiment, the stirring blade 43 is no higher than the connection between the water inlet pipe 2 and the reaction chamber 11. The stirring blade 43 stirs below the water inlet pipe 2 without increasing the water inlet pressure, and can improve the solid-liquid mixing effect and improve the wastewater treatment effect.
[0033] The solid-liquid separation device is located between the connection between the outlet pipe 3 and the reaction chamber 11 and the stirring device 4, and performs solid-liquid separation on the stirred solid-liquid mixed wastewater.
[0034] Specifically, the solid-liquid separation device includes at least two anti-disturbance rings 5, which are spaced apart along the height direction of the reaction chamber 11, and all the anti-disturbance rings 5 are located between the connection between the outlet pipe 3 and the reaction chamber 11 and the stirring blades 43. After being mixed by the stirring device 4, the solid-liquid wastewater contains large particles that are easy to precipitate, as well as small particles that are fine, flow with the water and are difficult to precipitate. The wastewater passes upward through multiple layers of anti-disturbance rings 5, and the small particles have enough space to be free from water disturbance, thereby agglomerating and precipitating, and then precipitating together with the large particles, which helps to improve the clarification effect of the effluent. After the wastewater reaches the top of the reaction chamber 11, the solid particles are separated, reaching a clarified state, and discharged from the outlet pipe 3.
[0035] The anti-disturbance ring 5 includes an inner ring 51, a plurality of blades 52 extending outward from the inner ring 51, and an outer ring 53 connected to the end of the blades 52 away from the inner ring 51. The outer ring 53 is fixed to the reactor 1. When the wastewater flows upward in a stirred state, the blades 52 block the flow of the water, causing it to gradually "calm down" and achieve solid-liquid separation.
[0036] Preferably, the middle of the inner ring 51 is hollowed out so that waste water can pass through and avoid causing resistance to the upward flow of water. Of course, the inner ring 51 can also be a solid structure, and its circumference is used to fix the blades 52.
[0037] The shape of the outer ring 53 is consistent with the cross-sectional shape of the reaction chamber 11 cut along the horizontal direction. The anti-disturbance ring 5 is clamped, welded or bonded to the side wall of the reactor 1 through the outer ring 53.
[0038] In one embodiment, if Figure 2 As shown, the blades 52 are upward-rotating blades, with an upward rotation angle of 30° to 60°. In this invention, the upward rotation angle refers to the angle between the line connecting the blade 52 and the outer ring 50 and the horizontal line. Upward-rotating blades provide better anti-disturbance effects on wastewater and are more conducive to solid-liquid separation.
[0039] Preferably, the upward rotation angle of the blades 52 of the anti-disturbance ring 5 gradually increases from bottom to top, and the anti-disturbance effect gradually increases from bottom to top, which is more conducive to solid-liquid separation.
[0040] The inventors have found that the more blades 52 there are in the anti-disturbance ring 5, the better the anti-disturbance effect. In the present invention, the number of blades 52 in the anti-disturbance ring 5 is 2 to 8, which can balance the flow resistance of the wastewater and the anti-disturbance performance.
[0041] In one embodiment, different anti-disturbance rings 5 have different numbers of blades 52. From bottom to top, the number of blades 52 of the anti-disturbance ring 5 gradually increases, and the anti-disturbance effect gradually increases from bottom to top, which is more conducive to solid-liquid separation.
[0042] In another embodiment, all the anti-disturbance rings 5 have the same number of blades 52 , and there is no need to provide multiple types of anti-disturbance rings 5 , thereby simplifying the assembly steps.
[0043] The inventors have found that a higher density of anti-disturbance rings 5 improves solid-liquid separation, but increases wastewater flow resistance. To improve separation efficiency under a given flow resistance, the density of anti-disturbance rings 5 in the height direction of the reaction chamber 11 is optimized as follows.
[0044] In the present invention, the density of the anti-disturbance rings 5 increases gradually from bottom to top. The wastewater at the bottom is highly disturbed, so the density of the anti-disturbance rings 5 is low, which can reduce the flow resistance of the wastewater. As the wastewater moves upward, the disturbance level decreases. Increasing the density of the anti-disturbance rings 5 enhances the anti-disturbance effect, making it more conducive to "stilling" the wastewater and achieving solid-liquid separation.
[0045] Specifically, at least some of the anti-disturbance rings 5 have different heights in the height direction of the reaction chamber 11; and / or at least some of the adjacent anti-disturbance rings 5 have different distances. By adjusting the density of the anti-disturbance rings 5 by at least one of their height and / or spacing, the structural design is simplified.
[0046] In the first embodiment, in the height direction of the reaction chamber 11 , at least some of the anti-disturbance rings 5 have different heights, and the intervals between adjacent anti-disturbance rings 5 are the same.
[0047] In one embodiment, all the anti-disturbance rings 5 have different heights; and the thickness of the anti-disturbance rings 5 gradually increases from bottom to top.
[0048] In another embodiment, at least two of the anti-disturbance rings 5 have different thicknesses, and the thickness of the upper anti-disturbance ring 5 is greater than the thickness of the lower anti-disturbance ring 5 .
[0049] In the second embodiment, all the anti-disturbance circles 5 have the same height, and the distances between at least some adjacent anti-disturbance circles 5 are different.
[0050] In one embodiment, the distances between all adjacent anti-disturbance circles 5 are different; and the distances between adjacent anti-disturbance circles 5 gradually decrease from bottom to top.
[0051] In another embodiment, the distances between at least two adjacent anti-disturbance circles 5 are different, and the distance between two adjacent anti-disturbance circles 5 located above is smaller than the distance between two adjacent anti-disturbance circles 5 located below.
[0052] In the third embodiment, in the height direction of the reaction chamber 11 , at least some of the anti-disturbance rings 5 have different heights, and at least some of the adjacent anti-disturbance rings 5 have a spacing that decreases from bottom to top.
[0053] In one embodiment, all the anti-disturbance rings 5 have different heights; the thickness of the anti-disturbance rings 5 gradually increases from bottom to top. All the distances between adjacent anti-disturbance rings 5 are different; the distance between adjacent anti-disturbance rings 5 gradually decreases from bottom to top.
[0054] In another embodiment, at least two of the anti-disturbance rings 5 have different thicknesses, and the thickness of the upper anti-disturbance ring 5 is greater than the thickness of the lower anti-disturbance ring 5. The distances between all adjacent anti-disturbance rings 5 are different; from bottom to top, the distances between adjacent anti-disturbance rings 5 gradually decrease.
[0055] In another embodiment, all the anti-disturbance circles 5 have different heights; the thickness of the anti-disturbance circles 5 gradually increases from bottom to top; the distances between at least two adjacent anti-disturbance circles 5 are different, and the distance between the two adjacent anti-disturbance circles 5 located above is smaller than the distance between the two adjacent anti-disturbance circles 5 located below.
[0056] In another embodiment, at least two of the anti-disturbance rings 5 have different thicknesses, and the thickness of the upper anti-disturbance ring 5 is greater than the thickness of the lower anti-disturbance ring 5. The distances between at least two adjacent anti-disturbance rings 5 are different, and the distance between the two adjacent anti-disturbance rings 5 located at the upper side is smaller than the distance between the two adjacent anti-disturbance rings 5 located at the lower side.
[0057] In the above-mentioned embodiment in which the setting density of the multiple anti-disturbance rings 5 is different, the number of blades 52 of all the anti-disturbance rings 5 is set as above, the number of blades 52 of all the anti-disturbance rings 5 is the same, or the number of blades 52 of different anti-disturbance rings 5 is different.
[0058] During operation of the wastewater treatment device 100, wastewater enters the reaction chamber 11 through the water inlet pipe 2, while clarified water is discharged through the liquid outlet pipe 3, causing the water in the device to move upward. Solids and liquids are evenly mixed by the stirring blades 43. The upward movement of the water drives fine particles in the device upward, where they are allowed to settle and flocculate to form larger particles. These particles, along with other large solid particles in the device, settle into the solid hopper 12 below the device. Sludge is then periodically discharged from the sludge outlet 6, achieving the goal of clarifying the upper outlet.
[0059] In summary, the wastewater treatment device 100 of the present invention houses the stirring device 4 and the solid-liquid separation device within the same reaction chamber 11. Wastewater enters the bottom of the reaction chamber 11 through the water inlet pipe 2. Under the stirring of the stirring device 4, the solid and liquid are fully mixed, thereby improving the wastewater treatment effect. The mixed wastewater passes through the solid-liquid separation device from bottom to top to separate solid particles. Upon reaching the top, the wastewater becomes clear and is discharged from the water outlet pipe 3. The wastewater treatment device 100 achieves the purpose of integrated "stirring-solid-liquid separation" without requiring a separate site or equipment.
[0060] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
[0061] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.
Claims
1. A wastewater treatment device comprising a reactor having a reaction chamber, a water inlet pipe connected to the bottom of the reaction chamber, and a water outlet pipe connected to the top of the reaction chamber, characterized in that: The wastewater treatment device further comprises: a stirring device, the stirring device comprising a stirring motor, a driving rod connected to the stirring motor, and a stirring blade located on the driving rod, wherein the stirring blade is located at the bottom of the reaction chamber; The solid-liquid separation device comprises at least two anti-disturbance rings spaced apart along the height direction of the reaction chamber, wherein the anti-disturbance rings are located between the connection between the water outlet pipe and the reaction chamber and the stirring blades.
2. The wastewater treatment device according to claim 1, characterized in that: The stirring motor is located above the reactor, and the driving rod extends from top to bottom into the reaction chamber; and / or The stirring blade is no higher than the connection between the water inlet pipe and the reaction chamber.
3. The wastewater treatment device according to claim 1, characterized in that: The anti-disturbance ring includes an inner ring, a plurality of blades extending outward from the inner ring, and an outer ring connected to one end of the blade away from the inner ring, and the outer ring is fixed to the reactor.
4. The wastewater treatment device according to claim 3, characterized in that: The blade is an upward rotating blade, and the upward rotating angle of the upward rotating blade is 30° to 60°.
5. The wastewater treatment device according to claim 4, characterized in that: From bottom to top, the upward rotation angle of the blades of the anti-disturbance ring gradually increases.
6. The wastewater treatment device according to claim 1, characterized in that: From bottom to top, the arrangement density of the anti-disturbance rings gradually increases.
7. The wastewater treatment device according to claim 6, characterized in that: In the height direction of the reaction chamber, at least some of the anti-disturbance rings have different heights; and / or at least some of the distances between adjacent anti-disturbance rings are different.
8. The wastewater treatment device according to claim 7, characterized in that: “At least some of the anti-disturbance rings have different heights” includes: all of the anti-disturbance rings have different heights, and the thickness of the anti-disturbance rings gradually increases from bottom to top; or at least two of the anti-disturbance rings have different thicknesses, and the thickness of the upper anti-disturbance ring is greater than the thickness of the lower anti-disturbance ring; "The distances between at least some adjacent anti-disturbance circles are different" includes: the distances between all adjacent anti-disturbance circles are different, and the distances between adjacent anti-disturbance circles gradually decrease from bottom to top; or, the distances between at least two adjacent anti-disturbance circles are different, and the distance between the two adjacent anti-disturbance circles located above is smaller than the distance between the two adjacent anti-disturbance circles located below.
9. The wastewater treatment device according to any one of claims 3 to 8, characterized in that: The number of blades in the anti-disturbance ring is 2 to 8.
10. The wastewater treatment device according to claim 9, characterized in that: Different anti-disturbance rings have different numbers of blades; the number of blades in the anti-disturbance ring increases gradually from bottom to top; Alternatively, all the anti-disturbance rings have the same number of blades.