Stirring device for grinding wastewater treatment
By using spiral and hyperbolic stirring paddles driven by a reducer motor in the stirring device, problems such as the stirring dead angles during grinding wastewater treatment in the prior art and the easy damage to the stirring paddles are solved, thereby achieving a more efficient stirring effect and lower energy consumption.
Patent Information
- Application Number
- CN202421453683.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-24
AI Technical Summary
When dealing with grinding wastewater, existing frame-type stirring equipment has problems such as the agitation blind spot, the stirring paddle is easy to damage, the stirring efficiency is low, and the equipment has high energy consumption.
A stirring device including a speed reduction motor, a stirring shaft, a spiral stirring pad and a hyperbolic stirring pad is adopted. The speed reduction motor drives the stirring shaft to rotate, and drives the spiral and hyperbolic stirring pads to rotate simultaneously, generate axial flow to eliminate the stirring dead corners, and clean the bottom wall of the reaction tank through a cleaning mechanism.
It improves the mixing effect of wastewater in the reaction tank, eliminates the stirring dead corners, enhances the sewage treatment effect, reduces the load resistance of the stirring paddle, extends the service life of the equipment, and reduces energy consumption.
Smart Images
Figure CN222753010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wastewater treatment, in particular to a stirring device for grinding wastewater treatment. Background Art
[0002] During the grinding process of metal, stone, carbon and other materials, manufacturing enterprises will generate a large amount of grinding wastewater, which contains a large amount of impurities and acid-base substances. The sewage treatment reaction tank mainly uses microbial bacteria to degrade COD in sewage, and these bacteria generally exist in the sewage in the form of sludge. In order to keep the bacteria alive, the sludge in the water needs to be circulated.
[0003] At present, frame-type stirring equipment is generally used to stir the inside of the reaction tank to make bacteria and sewage fully contact. The stirring shaft is mainly driven by an electrode-driven reducer to rotate. A frame-type stirrer is set on the stirring shaft. The stirrer is immersed in the wastewater. When the stirrer rotates, it will push the material to flow, so that different parts of the material contact and mix with each other to react, preventing the material from settling or stratifying. However, grinding wastewater has the characteristics of high viscosity and easy flocculation, which increases the load of traditional frame-type stirring equipment during stirring, and the stirring effect is unstable. Long-term use can easily lead to equipment overload and damage. At the same time, more sediment is easily deposited on the bottom wall of the reaction tank, which is not easy to clean. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a stirring device for grinding wastewater treatment, which has a stable stirring effect, high working efficiency, saves energy, and avoids the existence of stirring dead corners on the inner wall of the reaction tank. It can solve the technical problems of existing frame-type stirring equipment such as stirring dead corners, easy damage of stirring paddles, low stirring efficiency and high equipment energy consumption.
[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:
[0006] In one technical scheme of the utility model, a stirring device for grinding wastewater treatment is provided, comprising a reduction motor, a stirring shaft, a spiral stirring paddle and a hyperbolic stirring paddle, the reduction motor is fixedly connected to a bridge frame horizontally arranged on the top of a reaction tank, the lower end of the motor shaft of the reduction motor is fixedly connected to the stirring shaft, the spiral stirring paddle is sleeved on the outer side of the middle part of the stirring shaft and fixedly connected to the stirring shaft, the hyperbolic stirring paddle is sleeved on the lower part of the stirring shaft and fixedly connected to the stirring shaft, the bottom end of the stirring shaft is fixedly connected with a cleaning mechanism, and the cleaning mechanism is located below the hyperbolic stirring paddle.
[0007] The above technical solution is adopted, the agitator shaft is driven to rotate by the reduction motor, and then the spiral agitator, the hyperbolic agitator and the cleaning mechanism are driven to rotate synchronously, and the rotation of the hyperbolic agitator generates axial flow, so that the water in the reaction tank can circulate better, eliminate the stirring dead corners in the reaction tank, keep the microorganisms and bacteria in full contact and reaction with the grinding wastewater, and improve the sewage treatment effect; at the same time, by setting a sheet-shaped spiral agitator, the stirring and dispersion effect can be further enhanced, and the load resistance of the liquid medium to the stirring blade can be reduced, and the blade can be prevented from being damaged and deformed. By setting a cleaning mechanism, the cleaning mechanism can be driven to rotate to scrub and clean the bottom wall of the reaction tank while stirring, so as to prevent the activated sludge or fine impurities from being deposited at the bottom of the reaction tank for a long time and difficult to clean.
[0008] In some possible embodiments, the spiral stirring paddle includes two groups of propeller blades with the same rotation direction and lead, a sleeve and a connecting rod, the upper end, the lower end and the middle of the propeller blade are respectively fixedly connected to a sleeve through a connecting rod, the sleeve is fitted and sleeved on the outside of the stirring shaft, the lower part of the stirring shaft is provided with a first boss, the sleeve connected to the lower end of the propeller blade is fixedly connected to the first boss, a limit ring is pressed above the sleeve connected to the upper end of the propeller blade, the limit ring is fitted and sleeved on the outside of the stirring shaft and is detachably fixedly connected to the stirring shaft, and the motor shaft is fixedly connected to the limit ring. The wastewater medium at the top of the reaction tank can be disturbed and stirred by two groups of propeller blades to improve the dispersion effect, the spiral stirring paddle is sleeved on the stirring shaft through the sleeve and forms synchronous rotation with it, the propeller blade can be fixed by setting a connecting rod to ensure its structural stability, and the stirring shaft, the spiral stirring paddle and the motor shaft can be fixedly connected by the limit ring to ensure that the three rotate synchronously under the driving action of the reduction motor.
[0009] In some possible embodiments, a second boss is provided at the lower portion of the stirring shaft, and the second boss is located below the first boss. The hyperbolic stirring paddle is fixedly connected to the second boss to ensure that the reduction motor drives the stirring shaft to rotate while driving the hyperbolic stirring paddle to rotate coaxially and synchronously, thereby rotating and stirring the wastewater.
[0010] In some possible embodiments, the hyperbolic stirring paddle includes a hyperbolic blade in the shape of a hollow conical barrel, and a plurality of arc-shaped stirring ribs are evenly arranged on the upper surface of the hyperbolic blade. The hyperbolic blade is driven to rotate by a reduction motor to generate centrifugal force to form a radial flow, so that the wastewater and sludge in the reaction tank can be effectively circulated, so that the sludge is suspended and prevented from gathering at the bottom. At the same time, due to the provision of stirring ribs, the wastewater can be thrown along the arc-shaped stirring ribs to the wall of the water tank and then move upward along the wall, axially promoting the circulation of the fluid, thereby eliminating the stirring dead corner in the water tank, improving the mixing reaction effect of the activated sludge and the grinding wastewater, and improving the stirring efficiency.
[0011] In some possible embodiments, the cleaning mechanism includes a fixed sleeve, a support plate integrally formed with the fixed sleeve and horizontally arranged, and a cleaning brush fixed on the bottom surface of the support plate, the fixed sleeve is fixed to the bottom end of the stirring shaft, and the support plate is arranged in at least three groups at equal intervals with the fixed sleeve as the center, and the cleaning brush is in contact with the bottom wall of the reaction tank.
[0012] In some possible embodiments, a reducing step is provided at the bottom end of the stirring shaft, the fixed sleeve abuts against the lower end surface of the reducing step, a locking plate abuts against the bottom of the fixed sleeve, and the locking plate, the fixed sleeve and the stirring shaft are fixedly connected.
[0013] In some possible implementations, the support plate abuts against the bottom end surface of the hyperbolic blade, and two adjacent support plates are connected by an arc plate to improve the structural stability of the support plate during rotation.
[0014] The beneficial effects of the utility model are as follows:
[0015] The stirring device for grinding wastewater treatment provided by the utility model fully improves the stirring and mixing effect of the wastewater in the reaction tank by arranging the synergistic effect of the spiral stirring paddle and the hyperbolic stirring paddle, eliminates the stirring dead corners in the reaction tank, ensures that the activated sludge containing microorganisms and bacteria and the grinding wastewater are fully contacted and reacted, is beneficial to improving the biochemical treatment effect of the grinding wastewater, and effectively removes the acid and alkali substances and COD in the wastewater. At the same time, the cleaning mechanism can ensure that the bottom wall of the reaction tank is timely brushed and cleaned during stirring, and can also further improve the dispersion effect of the active sludge to avoid deposition on the bottom wall of the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the stirring device for grinding wastewater treatment in the utility model;
[0018] Figure 2 It is another three-dimensional structural schematic diagram of the stirring device for grinding wastewater treatment in the utility model;
[0019] Figure 3 This is a schematic diagram of the split structure of the stirring device for grinding wastewater treatment in the utility model;
[0020] Figure 4 The utility model is a schematic diagram of the installation of a stirring device for grinding wastewater treatment in a reaction tank.
[0021] Explanation of the numbers in the figure: 1. reduction motor; 11. motor shaft; 2. stirring shaft; 21. first boss; 22. second boss; 23. reduced diameter step; 3. spiral stirring paddle; 31. propeller blade; 32. bushing; 33. connecting rod; 34. limiting pressure ring; 4. hyperbolic stirring paddle; 41. hyperbolic blade; 42. stirring rib; 5. cleaning mechanism; 51. fixing sleeve; 52. support plate; 53. cleaning brush; 54. locking plate; 55. arc plate; 100. reaction tank; 200. bridge. DETAILED DESCRIPTION
[0022] The following is a specific embodiment of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, it does not mean that the features of this utility model are limited to the embodiment.
[0023] In the description of this embodiment, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top", "bottom", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to has a specific direction, is constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.
[0024] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be 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 this embodiment can be understood according to specific circumstances.
[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0026] like Figures 1 to 4As shown, in one embodiment of the utility model, a stirring device for grinding wastewater treatment is provided, comprising a reduction motor 1, a stirring shaft 2, a spiral stirring paddle 3 and a hyperbolic stirring paddle 4. The vertically arranged reduction motor 1 is fixedly connected to a bridge frame 200 horizontally arranged at the top of the reaction tank 100, the lower end of the motor shaft 11 of the reduction motor 1 is fixedly connected to the stirring shaft 2, and the spiral stirring paddle 3 is sleeved on the outer side of the middle part of the stirring shaft 2 and fixedly connected to the stirring shaft 2 to achieve synchronous rotation. The hyperbolic stirring paddle 4 is sleeved on the lower part of the stirring shaft 2 and fixedly connected to the stirring shaft 2, and the bottom end of the stirring shaft 2 is fixedly connected to a cleaning mechanism 5, and the cleaning mechanism 5 is located below the hyperbolic stirring paddle 4.
[0027] Specifically, refer to Figure 1 and Figure 3 The propeller 3 includes two sets of propeller blades 31 with the same rotation direction and lead, a sleeve 32 and a connecting rod 33. The upper end, lower end and middle part of the propeller blade 31 are respectively fixedly connected to a sleeve 32 through a connecting rod 33. The sleeve 32 is fitted and sleeved on the outside of the stirring shaft 2. The lower part of the stirring shaft 2 is provided with a first boss 21. The sleeve 32 connected to the lower end of the propeller blade 31 is fixedly connected to the first boss 21 by bolts. A limit ring 34 is pressed above the sleeve 32 connected to the upper end of the propeller blade 31. The limit ring 34 is fitted and sleeved on the outside of the stirring shaft 2 and is detachably fixedly connected to the stirring shaft 2. The motor shaft 11 is fixedly connected to the limit ring 34. The wastewater medium at the top of the reaction tank 100 can be disturbed and stirred by two sets of propeller blades 31 to improve the dispersion effect. The spiral stirring paddle 3 is sleeved on the stirring shaft 2 through the shaft sleeve 32 and rotates synchronously therewith. The propeller blade 31 can be fixed by setting a connecting rod 33 to ensure its structural stability. The stirring shaft 2, the spiral stirring paddle 3 and the motor shaft 11 can be fixedly connected by a limiting pressure ring 34 to ensure that the three rotate synchronously under the driving action of the reduction motor 1.
[0028] refer to Figure 1 and Figure 3, a second boss 22 is provided at the lower part of the stirring shaft 2, and the second boss 22 is located below the first boss 21. The hyperbolic stirring paddle 4 is fixedly connected to the second boss 22 to ensure that the reduction motor 1 drives the stirring shaft 2 to rotate while driving the hyperbolic stirring paddle to rotate coaxially and synchronously, so as to rotate and stir the wastewater. The hyperbolic stirring paddle 4 includes a hyperbolic blade 41 in the shape of a hollow cone barrel, and a plurality of arc-shaped stirring ribs 42 are evenly arranged around the upper surface of the hyperbolic blade 41. The reduction motor 1 drives the hyperbolic blade 41 to rotate to generate centrifugal force to form a radial flow, so that the wastewater and sludge in the reaction tank can be effectively circulated, so that the sludge is in a suspended state, and the sludge is prevented from gathering at the bottom. At the same time, due to the provision of the stirring ribs 42, the wastewater can be thrown along the arc-shaped stirring ribs 42 to the wall of the water tank and then move upward along the wall, and the fluid is axially pushed to circulate, thereby eliminating the stirring dead angle in the water tank, improving the mixing reaction effect of the activated sludge and the grinding wastewater, and improving the stirring efficiency.
[0029] refer to Figure 2 and Figure 3 The cleaning mechanism 5 includes a fixed sleeve 51, a support plate 52 which is integrally formed with the fixed sleeve 51 and arranged horizontally, and a cleaning brush 53 fixed on the bottom surface of the support plate 52. The fixed sleeve 51 is fixed to the bottom end of the stirring shaft 2. The support plate 52 is arranged in at least three groups with equal spacing around the fixed sleeve 51. The cleaning brush 53 contacts the bottom wall of the reaction tank 100. The bottom end of the stirring shaft 2 is provided with a diameter reduction step 23. The fixed sleeve 51 abuts against the lower end surface of the diameter reduction step 23. The bottom of the fixed sleeve 51 abuts against a locking plate 54. The locking plate 54, the fixed sleeve 51 and the stirring shaft 2 are fixedly connected by installing bolts or screws along the axial direction of the half-circle. The support plate 52 abuts against the bottom end surface of the hyperbolic blade 41. Two adjacent support plates 52 are connected by an arc plate 55 to improve the structural stability of the support plate 52 during rotation.
[0030] The stirring device for grinding wastewater treatment provided by the utility model is as follows when working:
[0031] The agitator shaft 2 is driven to rotate by the reduction motor 1, which drives the spiral agitator 3 and the hyperbolic agitator 4 to rotate synchronously. The rotation of the hyperbolic blade 41 generates centrifugal force to promote the axial flow of wastewater in the tank. The centrifugal and stirring effects of the stirring ribs 42 promote the circulation of the fluid, effectively eliminating the stirring dead corners in the reaction tank 100, improving the mixing reaction effect of the activated sludge and the grinding wastewater, and improving the stirring efficiency; at the same time, the rotation of the agitator shaft 2 drives the cleaning mechanism 5 to rotate synchronously, and the bottom wall of the reaction tank 100 is cleaned by the cleaning brush 53, so as to prevent impurities or activated sludge in the grinding wastewater from being deposited at the bottom of the reaction tank, and further improve the biochemical reaction treatment effect between the grinding wastewater and the microorganisms.
[0032] Although the utility model has been illustrated and described with reference to certain preferred embodiments of the utility model, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. Therefore, any technical solution that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.
Claims
1. A stirring device for grinding wastewater treatment, characterized in that: The invention comprises a reduction motor (1), a stirring shaft (2), a spiral stirring paddle (3) and a hyperbolic stirring paddle (4), wherein the reduction motor (1) is fixedly connected to a bridge frame (200) arranged horizontally on the top of a reaction tank (100), the lower end of a motor shaft (11) of the reduction motor (1) is fixedly connected to the stirring shaft (2), the spiral stirring paddle (3) is sleeved on the outer side of the middle part of the stirring shaft (2) and is fixedly connected to the stirring shaft (2), the hyperbolic stirring paddle (4) is sleeved on the lower part of the stirring shaft (2) and is fixedly connected to the stirring shaft (2), and the bottom end of the stirring shaft (2) is fixedly connected to a cleaning mechanism (5), and the cleaning mechanism (5) is located below the hyperbolic stirring paddle (4).
2. A stirring device for grinding wastewater treatment according to claim 1, characterized in that: The screw stirring blade (3) comprises two groups of screw blades (31) with the same rotation direction and lead, a shaft sleeve (32) and a connecting rod (33); the upper end, the lower end and the middle part of the screw blade (31) are respectively fixedly connected to a shaft sleeve (32) through the connecting rod (33); the shaft sleeve (32) is fitted and sleeved on the outside of the stirring shaft (2); the lower part of the stirring shaft (2) is provided with a first boss (21); the shaft sleeve (32) connected to the lower end of the screw blade (31) is fixedly connected to the first boss (21); a limit ring (34) is pressed above the shaft sleeve (32) connected to the upper end of the screw blade (31); the limit ring (34) is fitted and sleeved on the outside of the stirring shaft (2) and is detachably fixedly connected to the stirring shaft (2); the motor shaft (11) is fixedly connected to the limit ring (34).
3. A stirring device for grinding wastewater treatment according to claim 1, characterized in that: A second boss (22) is provided at the lower part of the stirring shaft (2), the second boss (22) is located below the first boss (21), and the hyperbolic stirring paddle (4) is fixedly connected to the second boss (22).
4. A stirring device for grinding wastewater treatment according to claim 1, characterized in that: The hyperbolic stirring paddle (4) comprises a hyperbolic blade (41) in the shape of a hollow cone barrel, and a plurality of arc-shaped stirring ribs (42) are evenly arranged around the upper surface of the hyperbolic blade (41).
5. A stirring device for treating grinding wastewater according to claim 1, characterized in that: The cleaning mechanism (5) comprises a fixed sleeve (51), a support plate (52) formed integrally with the fixed sleeve (51) and arranged horizontally, and a cleaning brush (53) fixed to the bottom surface of the support plate (52); the fixed sleeve (51) is fixed to the bottom end of the stirring shaft (2); the support plate (52) is arranged in at least three groups at equal intervals with the fixed sleeve (51) as the center; and the cleaning brush (53) is in contact with the bottom wall of the reaction tank (100).
6. A stirring device for treating grinding wastewater according to claim 5, characterized in that: The bottom end of the stirring shaft (2) is provided with a reduced diameter step (23), the fixed sleeve (51) abuts against the lower end surface of the reduced diameter step (23), the bottom of the fixed sleeve (51) abuts against a locking plate (54), and the locking plate (54), the fixed sleeve (51) and the stirring shaft (2) are fixedly connected.
7. A stirring device for treating grinding wastewater according to claim 5, characterized in that: The support plate (52) abuts against the lower end surface of the hyperbolic blade (41), and two adjacent support plates (52) are connected via an arc plate (55).