CN202876692U - Wastewater treatment blender - Google Patents
Wastewater treatment blender Download PDFInfo
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- CN202876692U CN202876692U CN2012202859656U CN201220285965U CN202876692U CN 202876692 U CN202876692 U CN 202876692U CN 2012202859656 U CN2012202859656 U CN 2012202859656U CN 201220285965 U CN201220285965 U CN 201220285965U CN 202876692 U CN202876692 U CN 202876692U
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- sewage disposal
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Abstract
The utility model relates to a wastewater treatment blender. The wastewater treatment blender comprises a motor (1), a transmission shaft (4), a bearing pedestal (2), a mechanical sealing device (3) and two identical impellers A (5) and B (6), wherein the transmission shaft (4) is arranged at the end of an output shaft of the motor (1), the bearing pedestal (2) is arranged at the periphery of the transmission shaft (4), and the impeller A (5) and the impeller B (6) are arranged at the same side of the motor (1) and arranged on the same transmission shaft (4). The differences between the second embodiment of the utility model and the first embodiment are as follows: the impeller A (5) and the impeller B (6) are different in diameter, the diameter of the impeller A (5) near the side of the motor (1) is less than that of the impeller B (6). The wastewater treatment blender has the advantages of obviously enlarging the volume of a stirring water body, obviously prolonging the advance distance and overcoming the defect that the multiple sewage treatment blenders need to be arranged when a large water tank is applied.
Description
Technical field
The present invention relates to a kind of sewage disposal mixer, refer in particular to a kind of back of the body formula bilobed wheel sewage disposal mixer.
Background technology
Along with industrial develop rapidly, the environmental pollution of China is more and more serious, and country pays much attention to the control of environment.Especially aspect sewage disposal, China explicitly points out in " 12 " planning, improves energetically town domestic sewage and garbage disposal ability, and by 2015, treatment rate of domestic sewage and level of harmless treatment rate of life waste will reach respectively 85% and 80%.Jiangsu Province also brings forward in " 12 " planning, by 2015, builds town sewage treatment facility coverage rate and reaches 90%.Sewage disposal is the important measures that current environmental administration and enterprise solve contaminated wastewater in the environmental pollution, wherein, the sewage disposal mixer is a kind of important sewage disposal Mixing Machine, that a kind of novel diving is processed mixing plant, be applicable to city and rural sewage treatment field, be widely used in the biochemical reaction tanks such as anaerobic pond, sedimentation basin and aeration tank.In sewage disposal, it mainly contains four kinds of effects.(1) carries out Hydraulic Circulation.(2) improve oxygen transfer efficiency.(3) make things convenient for lattice, segment processing.(4) improve water quality.The pond that mixer stirs, pond inner fluid average speed remains on about 0.3m/s, and the activated sludge that is rich in microorganism in the pond is suspended in the pond, and microorganism and sewage fully react, and reach the mix and blend effect.The sewage disposal mixer is divided into four kinds substantially according to its characteristics, band blower inlet casing diving mixer, mixing and blending machine, Double-curved-surface stirring device and low speed pushing flow device.
At present, the domestic sewage disposal mixer that generally uses is the single impeller mixer, namely on a submersible motor impeller is installed, and the number of blade is generally three or two.When the pond is larger, just can only inner suitable position be installed by many sewage disposal mixers in the pond, jointly stir and reach the stirring requirement.Complexity is installed, wastes time and energy, improved cost.
Through retrieval, the relevant patent of declaring has at present: with the diving mixer of cutting function, and application number 201020295726.X; Glass fiber reinforced plastic diving thrust impeller of agitator, application number 200320126437.7.These patents, main by improving existing blade material, increase the impeller accessory and improve the mixer performance.
Summary of the invention
The objective of the invention is to overcome the defective that a plurality of sewage disposal mixers need to be installed when larger in present pond, a kind of novel in the same way bilobed wheel sewage disposal mixer is provided, only needing to install one in large pond should invention, can reach the stirring requirement.
The present invention designs the sewage disposal mixer that a submersible motor drives two impellers, comprises motor, is located at the power transmission shaft of motor output shaft end, the bearing block of being located at the power transmission shaft periphery, mechanically-sealing apparatus, impeller A and impeller B; Described impeller A and described impeller B are positioned at the homonymy of described motor and are installed on the same power transmission shaft.
Further, described impeller A 5 and described impeller B6 are identical two impellers, and perhaps described impeller A 5 is different with the diameter of described impeller B6, and the diameter of described impeller A 5 is adjacent with described motor 1 less than diameter and the described impeller A 5 of described impeller B6.
The blade of described impeller A and described impeller B two broad in the middle is little; Vane thickness is even attenuate from the root to the top, aerofoil profile length evenly shortens from the root to the top, and the runner of this distortion airfoil fan more can meet the current characteristics of streamline, guarantees good hydraulic performance, to realize better making water obtain the purpose of more energy to the water acting.Simultaneously, in order to make things convenient for installing/dismounting and maintenance, blade bolt is fastened on the relevant position on the wheel hub.Blade on two impellers can be arranged to two blades, also can be arranged to three blades.
The invention has the advantages that: the sewage disposal mixer of the present invention's design, two impellers are easy to change, greatly facilitate maintaining, the volume and the advance distance that stir water body all obviously increase, and have overcome to be applied to the defective that a plurality of sewage disposal mixers need to be installed in larger pond.
Description of drawings
Fig. 1 is the structural representation figure of sewage disposal mixer embodiment 1.
Fig. 2 is the structural representation of sewage disposal mixer embodiment 2.
Fig. 3 is the scheme of installation of sewage disposal mixer.
Fig. 4 is the fluid flow line schematic diagram when the sewage disposal mixer moves among two embodiment.
Among the figure, 1, motor 2, bearing block 3, mechanically-sealing apparatus 4, power transmission shaft 5, impeller A 6, impeller B 7, guide rod 8, sewage disposal mixer, 9, pool wall, 10, at the bottom of the pond.
The specific embodiment
The first embodiment of the present invention as shown in Figure 1, a kind of sewage disposal mixer comprises motor 1, is located at the power transmission shaft 4 of motor 1 output shaft end, the bearing block 2 of being located at power transmission shaft 4 peripheries, mechanically-sealing apparatus 3 and two identical impeller A 5 and impeller B6; Described impeller A 5 and described impeller B6 are positioned at the homonymy of described motor 1 and are installed on the same power transmission shaft 4.
The second embodiment of the present invention as shown in Figure 2, and the unique difference of the first embodiment is that described impeller A 5 is different with the diameter of described impeller B6, near the diameter of the impeller A 5 of the motor 1 side diameter less than impeller B6.
In the above-mentioned two embodiment design processes, can according to the needs of the external conditions such as scope of the size in actual sewage pond and concentration of wastewater set between impeller A 5 and the impeller B6 apart from the interval.
The blade of described impeller A 1 and described impeller B6 designs according to lift line theory when design, and it is wing to choose suitable NACA4406-NACA4415, and two broad in the middle is little; Vane thickness is even attenuate from the root to the top, aerofoil profile length evenly shortens from the root to the top, and the runner of this distortion airfoil fan more can meet the current characteristics of streamline, guarantees good hydraulic performance, to realize better making water obtain the purpose of more energy to the water acting.Simultaneously, in order to make things convenient for installing/dismounting and maintenance, blade bolt is fastened on the relevant position on the wheel hub.Blade on two impellers can be arranged to two blades, also can be arranged to three blades.
As shown in Figure 3 and Figure 4, the guide rod 7 that utilization of the present invention is installed in sewage disposal mixer upper end places the pond side-walls with sewage disposal mixer 8, is seen as impeller for turning clockwise from impeller inlet.Impeller A 5 is pushed ahead sewage vertically, radial diffusion, and flow is through impeller B6, and sewage obtains energy again, and interacting with the fluid of speed and pool wall of pool 9 forms the reflux cycle of water.Under two impellers and pool wall of pool interaction, whole pond inner fluid fully circulates, and the flow velocity for the treatment of tank inner fluid distributes axisymmetricly along sewage disposal mixer 8 axles substantially, at the bottom of the pond 10 with the pond in fluid fully exchange, activated sludge is suspended in the treatment tank, contact fully reaction with microorganism, reach the effect of sewage disposal.
In order to verify the experiment effect of two embodiment, for embodiment 1, the diameter that we can choose impeller A 5 and impeller B6 is D=0.21m, hub diameter d
h=0.07m, between impeller A 5 and the B6 apart from interval 0.01m; Setting its motor speed is n=980r/min.To two impeller PRO/E three-dimensional modelings, the large-scale grid software demarcation of ICEM grid utilizes FLUENT software that water body is carried out numerical simulation respectively.Read post-processed file, we can draw to draw a conclusion, and in the situation that motor speed, impeller diameter and hub diameter remain unchanged, the effective advance distance of single impeller mixer is about 9m, and stirred volume is 36m
2About.The effective advance distance of bilobed wheel mixer is that stirred volume reaches 54m about 13m
2About.Hence one can see that, and bilobed wheel mixer stirring coverage of water will increase to 1.5 times with diameter impeller stirred volume; Advance distance will increase to 1.44 times with diameter single impeller advance distance.
For embodiment 2, the diameter that we can choose impeller A 5 is D=0.21m, hub diameter d
h=0.07m, impeller B6 diameter is D=0.38m, hub diameter d
h=0.07m.Between impeller A 5 and the B6 apart from interval 0.04m; Choose single impeller diameter D=0.21m in the analogy experiment, motor speed is n=980r/min, the hub diameter d of Dan Yelun
h=0.07m.By the PRO/E three-dimensional modeling, the large-scale grid software demarcation of ICEM grid utilizes FLUENT software that water body is carried out numerical simulation.Read post-processed file, we can draw to draw a conclusion, and the effective advance distance of D=0.21m single impeller mixer is about 9m, and stirred volume is 36m
2About; The effective advance distance of bilobed wheel mixer is that stirred volume reaches 74m about 14.3m
2About.Hence one can see that, and bilobed wheel mixer stirring coverage of water will increase to about 2 times with diameter impeller stirred volume; Advance distance will increase to 1.59 times with diameter single impeller advance distance.
Claims (5)
1. sewage disposal mixer, comprise motor (1), be located at the power transmission shaft (4) of motor (1) output shaft end, the bearing block (2) of being located at power transmission shaft (4) periphery and mechanically-sealing apparatus (3), it is characterized in that described sewage disposal mixer has respectively impeller A (5) and impeller B(6); Described impeller A (5) and described impeller B(6) be positioned at the homonymy of described motor (1) and be installed on the same power transmission shaft (4).
2. a kind of sewage disposal mixer according to claim 1 is characterized in that, described impeller A (5) and described impeller B(6) be identical two impellers.
3. a kind of sewage disposal mixer according to claim 1, it is characterized in that, described impeller A (5) and described impeller B(6) diameter different, the diameter of described impeller A (5) is less than described impeller B(6) diameter and described impeller A (5) adjacent with described motor (1).
4. a kind of sewage disposal mixer according to claim 1 is characterized in that, described impeller A (5) and described impeller B(6) blade two broad in the middle little; Vane thickness is even attenuate from the root to the top, and aerofoil profile length evenly shortens from the root to the top.
5. a kind of sewage disposal mixer according to claim 1 is characterized in that, described impeller A (5) and described impeller B(6) blade be arranged to two blades or three blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202859656U CN202876692U (en) | 2012-06-18 | 2012-06-18 | Wastewater treatment blender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202859656U CN202876692U (en) | 2012-06-18 | 2012-06-18 | Wastewater treatment blender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202876692U true CN202876692U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202859656U Expired - Fee Related CN202876692U (en) | 2012-06-18 | 2012-06-18 | Wastewater treatment blender |
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| Country | Link |
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| CN (1) | CN202876692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102743994A (en) * | 2012-06-18 | 2012-10-24 | 江苏大学 | Sewage treatment mixer |
| TWI630027B (en) * | 2013-12-11 | 2018-07-21 | 英凡特環工工程股份公司 | Stirring body for circulating wastewater received in a basin and device |
-
2012
- 2012-06-18 CN CN2012202859656U patent/CN202876692U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102743994A (en) * | 2012-06-18 | 2012-10-24 | 江苏大学 | Sewage treatment mixer |
| TWI630027B (en) * | 2013-12-11 | 2018-07-21 | 英凡特環工工程股份公司 | Stirring body for circulating wastewater received in a basin and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20150618 |
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| EXPY | Termination of patent right or utility model |