Frame type stirrer

Abstract

The utility model discloses a frame type stirrer which comprises a driving device, a main shaft, an impeller and a bearing, the driving device is arranged above the pool body, the top end of the main shaft is connected with the bottom end of the driving device, the bearing is arranged at the bottom of the pool body, the main shaft is matched with the bearing, and the impeller is arranged on the main shaft; the impeller comprises a blade assembly and a fixing assembly. According to the device, the blades with adjustable angles are arranged, so that the speed of fluid generated by the blades with the same radius in the height direction is different, the mixing flocculation effect is enhanced, and the flocculation effect of the upper part or the lower part of the liquid surface in the radius direction can be adjusted according to actual working condition requirements; in addition, by arranging auxiliary blades, the mixing and stirring effects in the height direction and the radial direction are enhanced at the same time.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and more specifically, to a frame mixer. Background Technology

[0002] Frame mixers are used in the flocculation process of water supply and drainage treatment. The mixing effect has a significant impact on the formation and growth of flocs and the sedimentation of subsequent processes. In the existing frame impeller technology, all blades are vertically spaced on the same planar frame. When the frame impeller rotates, it generates fluid rotating around the drive shaft to carry out the flocculation process. However, it has the following shortcomings:

[0003] 1. Since all blades are vertically arranged on the same plane frame, the fluid velocity generated by blades with the same radius at the same height is the same. In the height direction, the mutual collision effect of flocs is poor, which affects the mixing and flocculation effect.

[0004] 2. The fluid velocity varies in different radial directions, and the flocculation effect is weaker near the drive shaft than far from the drive shaft, resulting in an uneven flocculation effect in different radial directions.

[0005] 3. Poor vertical and radial fluid flow in the flocculation tank results in uneven flocculation effect throughout the space, making it impossible to adjust appropriately according to process requirements. Summary of the Invention

[0006] Technical problem: The technical problem to be solved by this utility model is to provide a frame mixer, which can achieve different fluid velocities in the height direction by setting adjustable blades, so as to enhance the mixing and flocculation effect. It can also adjust the flocculation effect in the radial direction of the upper or lower part of the liquid surface according to the actual working conditions. In addition, by setting auxiliary blades, the mixing and stirring effect in both the height direction and the radial direction can be strengthened at the same time.

[0007] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted in this utility model embodiment is as follows:

[0008] A frame mixer includes a drive unit, a main shaft, an impeller, and a bearing; the drive unit is disposed above the tank body, the top end of the main shaft is connected to the bottom end of the drive unit, the bearing is disposed at the bottom of the tank body, the main shaft is adapted to the bearing, and the impeller is disposed on the main shaft; the impeller includes a blade assembly and a fixing assembly.

[0009] As a preferred embodiment, the fixing assembly includes a top plate and a bottom plate; the center points of the top plate and the bottom plate coincide with the main shaft; the top plate and the bottom plate are horizontally arranged and parallel to each other; the blade assembly includes a first blade, a second blade, and a third blade; the first blade is disposed between the top plate and the bottom plate and is located at the end closer to the main shaft; the third blade is disposed between the top plate and the bottom plate and is located at the end farther from the main shaft; the second blade is disposed between the first blade and the third blade; the first blade and the third blade are vertically arranged, and the second blade is an adjustable structure.

[0010] As a preferred example, the first blade, the second blade, and the third blade are arranged symmetrically about the main axis.

[0011] As a preferred embodiment, the top plate is provided with an upper adjustment hole; the bottom plate is provided with a lower adjustment hole; there are two upper adjustment holes; there are two lower adjustment holes; the two upper adjustment holes are symmetrically arranged with the main shaft as the axis; the two lower adjustment holes are symmetrically arranged with the main shaft as the axis; the second blade is connected to the fixing assembly through the upper adjustment holes and the lower adjustment holes.

[0012] As a preferred embodiment, the upper adjustment hole is an arc-shaped slot structure with both ends pointing downwards and the middle protruding, and the lower adjustment hole is an arc-shaped slot structure with both ends pointing upwards and the middle recessed; the lower adjustment hole is located directly below the upper adjustment hole; a line of symmetry is formed between the center point of the upper adjustment hole and the center point of the lower adjustment hole; each upper adjustment hole is symmetrical about the line of symmetry as its axis; each lower adjustment hole is symmetrical about the line of symmetry as its axis.

[0013] As a preferred embodiment, the upper part of the second blade rotates within the upper adjustment hole; the lower part of the second blade rotates within the lower adjustment hole.

[0014] As a preferred example, when the upper part of the second blade rotates within the upper adjustment hole, the bottom of the second blade is positioned at the center point of the lower adjustment hole, and when the lower part of the second blade rotates within the lower adjustment hole, the top of the second blade is positioned at the center point of the upper adjustment hole; the angle between the second blade and the line of symmetry when the second blade rotates is α; 0°≤α≤20°.

[0015] As a preferred embodiment, the second blade is provided with a first microblade and a second microblade; the first microblade is disposed on the upper part of the second blade; and the second microblade is disposed on the lower part of the second blade.

[0016] As a preferred example, the first microblade and the second microblade are inclined; the first microblade and the second microblade are inclined in opposite directions.

[0017] Beneficial Effects: Compared with the prior art, the technical solution of this utility model has the following beneficial effects: On the one hand, by setting adjustable-angle blades to change the inclination angle between the blades and the vertical plane, different fluid velocities are generated in the height direction by blades with the same radius, thus improving the mutual collision effect of flocs in the height direction and enhancing the mixing and flocculation effect. At the same time, the blade angles of the upper or lower part of the pool can be adjusted according to process needs, thereby adjusting the flocculation effect of the upper or lower part of the liquid surface in the radial direction; on the other hand, by setting auxiliary blades with different inclination angles on the blades, the mixing and stirring effects in both the height and radial directions are simultaneously enhanced. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a diagram of the impeller structure according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the upper tilt of the second blade in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the lower part of the second blade in an embodiment of the present invention.

[0022] The diagram includes: drive unit 1, main shaft 2, impeller 3, bearing 4, first blade 31, second blade 32, third blade 33, top plate 34, bottom plate 35, symmetry line 36, first micro blade 321, second micro blade 322, upper adjustment hole 341, and lower adjustment hole 351. Detailed Implementation

[0023] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1 As shown, a frame mixer according to an embodiment of the present invention includes a drive device 1, a main shaft 2, an impeller 3, and a bearing 4; the drive device 1 is disposed above the tank body, the top end of the main shaft 2 is connected to the bottom end of the drive device 1, the bearing 4 is disposed at the bottom of the tank body, the main shaft 2 is adapted to the bearing 4, and the impeller 3 is disposed on the main shaft 2; the impeller 3 includes a blade assembly and a fixing assembly.

[0025] In one type of frame mixer with the above-described structure, on the one hand, by setting adjustable-angle blades to change the inclination angle of the blades with respect to the vertical plane, different fluid velocities are generated in the vertical direction by blades of the same radius, thereby improving the mutual collision effect of flocs in the vertical direction and enhancing the mixing and flocculation effect. At the same time, the blade angles of the upper or lower parts of the water tank can be adjusted according to process requirements, thereby adjusting the flocculation effect in the radial direction of the upper or lower part of the liquid surface; on the other hand, by setting auxiliary blades with different inclination angles on the blades, the mixing and stirring effects in both the vertical and radial directions can be enhanced simultaneously.

[0026] When it is necessary to enhance the flocculation effect of the upper outer ring, the lower fastener of the second blade 32 is set on the symmetry line 36 of the lower adjustment hole 351, and the upper part of the second blade 32 is rotated by an appropriate angle α in the direction away from the central axis of rotation from the lower adjustment hole 351 fastener. At this time, the second blade 32 tilts away from the central axis, and the distance between the second blade 32 and the third blade 33 gradually decreases from bottom to top. The fluid velocity generated by the rotation of the second blade 32 is also no longer equal from bottom to top. On the one hand, the collision and mixing effect between the fluid generated by the second blade 32 and the fluid generated by the third blade 33 from bottom to top is enhanced, causing the flocs to continuously increase in size; on the other hand, since the fluid velocities at different heights are not equal, the mixing of fluids in the height direction is enhanced, thereby strengthening the flocculation effect in the height direction.

[0027] When it is necessary to enhance the flocculation effect of the upper inner ring, the lower fastener of the second blade 32 is set on the symmetry line 36 of the lower adjustment hole 351, and the upper part of the second blade 32 is rotated at an appropriate angle α in the direction of rotation axis closer to the central axis. At this time, the second blade 32 is tilted towards the central axis, and the distance between the second blade 32 and the first blade 31 gradually decreases from bottom to top. The fluid velocity generated by the rotation of the second blade 32 is also no longer equal from bottom to top. On the one hand, the collision and mixing effect between the fluid generated by the second blade 32 and the fluid generated by the first blade 31 from bottom to top is enhanced, causing the flocs to continuously increase in size; on the other hand, since the fluid velocities at different heights are not equal, the mixing of fluids in the height direction is enhanced, thereby strengthening the flocculation effect in the height direction.

[0028] When it is necessary to enhance the flocculation effect of the lower outer ring, the upper fastener of the second blade 32 is set on the symmetry line 36 of the upper adjustment hole 341, and the lower part of the fastener of the adjustment hole 341 above the second blade 32 is rotated by an appropriate angle α in the direction away from the central axis. At this time, the second blade 32 tilts away from the central axis, and the distance between the second blade 32 and the third blade 33 gradually decreases from top to bottom. The fluid velocity generated by the rotation of the second blade 32 is no longer equal from top to bottom. On the one hand, the collision and mixing of the fluid generated by the second blade 32 and the fluid generated by the third blade 33 from top to bottom is enhanced, causing the flocs to continuously increase in size; on the other hand, since the fluid velocities at different heights are not equal, the mixing of fluids in the height direction is enhanced, thereby strengthening the flocculation effect in the height direction.

[0029] When it is necessary to enhance the flocculation effect of the lower inner ring, the upper fastener of the second blade 32 is set on the symmetry line 36 of the upper adjustment hole 341, and the lower part of the fastener of the adjustment hole 341 above the second blade 32 is rotated by an appropriate angle α in the direction of rotation axis closer to the central axis. At this time, the second blade 32 is tilted towards the central axis, and the distance between the second blade 32 and the first blade 31 gradually decreases from top to bottom. The fluid velocity generated by the rotation of the second blade 32 is no longer equal from top to bottom. On the one hand, the collision and mixing of the fluid generated by the second blade 32 and the fluid generated by the first blade from top to bottom is enhanced, causing the flocs to continuously increase in size; on the other hand, since the fluid velocities at different heights are not equal, the mixing of fluids in the height direction is enhanced, thereby strengthening the flocculation effect in the height direction.

[0030] In addition, the first micro-blade 321 and the second micro-blade 322 are provided on the second blade 32, which can not only enhance the flocculation effect, but also improve the flocculation effect in the circumferential direction and the height direction.

[0031] like Figure 2As shown, in a preferred embodiment, the fixing assembly includes a top plate 34 and a bottom plate 35; the center points of the top plate 34 and the bottom plate 35 coincide with the main shaft 2; the top plate 34 and the bottom plate 35 are horizontally arranged and parallel to each other; the blade assembly includes a first blade 31, a second blade 32, and a third blade 33; the first blade 31 is disposed between the top plate 34 and the bottom plate 35, and is located at the end closer to the main shaft 2; the third blade 33 is disposed between the top plate 34 and the bottom plate 35, and is located at the end farther from the main shaft 2; the second blade 32 is disposed between the first blade 31 and the third blade 33; the first blade 31 and the third blade 33 are vertically arranged, and the second blade 32 is an adjustable structure. The fixing assembly is used to fix the blade assembly, making each blade more stable. The top plate 34 and the bottom plate 35 are symmetrically arranged along the main shaft 2, which makes the blades fixed on the fixing assembly symmetrical, thereby ensuring the smooth operation of the impeller. At the same time, the second blade 32 is located in the middle of the fixing assembly and can be rotated and adjusted by the fixing assembly.

[0032] As a preferred embodiment, the first blade 31, the second blade 32, and the third blade 33 are symmetrically arranged about the main shaft 2. The blades at various positions are symmetrically arranged about the main shaft 2 to ensure the balance performance of the impeller 3 and to ensure the stable operation of the impeller 3.

[0033] like Figure 3 , Figure 4 As shown, in a preferred embodiment, the top plate 34 is provided with an upper adjustment hole 341; the bottom plate 35 is provided with a lower adjustment hole 351; there are two upper adjustment holes 341; there are two lower adjustment holes 351; the two upper adjustment holes 341 are symmetrically arranged with the main shaft 2 as the axis; the two lower adjustment holes 351 are symmetrically arranged with the main shaft 2 as the axis; the second blade 32 is connected to the fixing assembly through the upper adjustment holes 341 and the lower adjustment holes 351. The symmetrical upper adjustment holes 341 and lower adjustment holes 351 on both sides of the main shaft 2 allow the second blade 32 to rotate symmetrically on both sides of the main shaft 2 according to actual process requirements, achieving both the purpose of adjusting the flocculation effect in the water and ensuring the stability of the impeller rotation.

[0034] As a preferred embodiment, the upper adjusting hole 341 is an arc-shaped slot structure with both ends pointing downwards and the middle protruding, and the lower adjusting hole 351 is an arc-shaped slot structure with both ends pointing upwards and the middle recessed; the lower adjusting hole 351 is located directly below the upper adjusting hole 341; a symmetry line 36 is formed between the center point of the upper adjusting hole 341 and the center point of the lower adjusting hole 351; each upper adjusting hole 341 is symmetrical about the symmetry line 36 as an axis; each lower adjusting hole 351 is symmetrical about the symmetry line 351 as an axis. Depending on the actual working conditions, the second blade 32 can rotate its upper part through the upper adjusting hole 341 or its lower part through the lower adjusting hole 351. The rotation method of the second blade 32 is flexible and adaptable to different situations.

[0035] As a preferred embodiment, the upper part of the second blade 32 rotates within the upper adjustment hole 341; the lower part of the second blade 32 rotates within the lower adjustment hole 351. When it is necessary to enhance the flocculation effect of the upper part, the upper part of the second blade 32 rotates within the upper adjustment hole 341; when it is necessary to enhance the flocculation effect of the lower part, the lower part of the second blade 32 rotates within the lower adjustment hole 351.

[0036] As a preferred example, when the upper part of the second blade 32 rotates within the upper adjustment hole 341, the bottom of the second blade 32 is positioned at the center point of the lower adjustment hole 351, and when the lower part of the second blade 32 rotates within the lower adjustment hole 351, the top of the second blade 32 is positioned at the center point of the upper adjustment hole 341; when the second blade 32 rotates, the angle between the second blade 32 and the line of symmetry 36 is α; 0°≤α≤20°. When it is necessary to enhance the flocculation effect of the upper inner ring, the lower part of the second blade 32 is fixed at the center of the lower adjustment hole 351, and the upper part of the second blade 32 rotates towards the first blade 31; when it is necessary to enhance the flocculation effect of the upper outer ring, the lower part of the second blade 32 is fixed at the center of the lower adjustment hole 351, and the upper part of the second blade 32 rotates towards the third blade 33; when it is necessary to enhance the flocculation effect of the lower inner ring, the upper part of the second blade 32 is fixed at the center of the upper adjustment hole 341, and the lower part of the second blade 32 rotates towards the first blade 31; when it is necessary to enhance the flocculation effect of the lower outer ring, the upper part of the second blade 32 is fixed at the center of the upper adjustment hole 341, and the lower part of the second blade 32 rotates towards the third blade 33. The rotation angle range of the second blade 32 is 0° to 20°. The second blade can enhance the flocculation effect in different directions according to actual needs.

[0037] like Figure 2 As shown, in a preferred embodiment, the second blade 32 is provided with a first micro blade 321 and a second micro blade 322; the first micro blade 321 is disposed on the upper part of the second blade 32; and the second micro blade 322 is disposed on the lower part of the second blade 32.

[0038] The first micro-blade is located in the upper middle part of the second blade 32. When the first micro-blade rotates, it generates upward-moving fluid, which enhances the flocculation effect above the impeller. The second micro-blade is located in the lower part of the second blade 32. When the second micro-blade rotates, it generates downward-moving fluid, which impacts the sediment at the bottom of the pool, thus enhancing the flocculation effect at the bottom of the pool.

[0039] As a preferred embodiment, the first microblade 321 and the second microblade 322 are arranged at an angle; the first microblade 321 and the second microblade 322 are inclined in opposite directions. The angled arrangement of the first microblade 321 and the second microblade 322 can better enhance the mixing effect of the fluid in the height direction; the opposite inclination direction of the first microblade 321 and the second microblade 322 can allow the upper and lower parts to mix simultaneously, enhance the mixing effect of the fluid, and thus improve the flocculation effect in both the circumferential and height directions.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. The specific embodiments and descriptions in the specification are merely for further illustrating the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. A frame mixer, characterized in that, The system includes a drive unit (1), a main shaft (2), an impeller (3), and a bearing (4). The drive unit (1) is positioned above the pool body. The top end of the main shaft (2) is connected to the bottom end of the drive unit (1). The bearing (4) is positioned at the bottom of the pool body. The main shaft (2) is adapted to the bearing (4). The impeller (3) is mounted on the main shaft (2). The impeller (3) includes a blade assembly and a fixing assembly. The fixing assembly includes a top plate (34) and a bottom plate (35). The center points of the top plate (34) and the bottom plate (35) coincide with the main shaft (2). The top plate (34) and the bottom plate (35) are horizontally positioned, and... The top plate (34) and the bottom plate (35) are parallel; the blade assembly includes a first blade (31), a second blade (32) and a third blade (33); the first blade (31) is disposed between the top plate (34) and the bottom plate (35) and is located at the end closer to the main shaft (2); the third blade (33) is disposed between the top plate (34) and the bottom plate (35) and is located at the end farther from the main shaft (2); the second blade (32) is disposed between the first blade (31) and the third blade (33); the first blade (31) and the third blade (33) are vertically arranged, and the second blade (32) is an adjustable structure.

2. The mixer according to claim 1, characterized in that, The first blade (31), the second blade (32) and the third blade (33) are symmetrically arranged with the main axis (2) as the axis.

3. The mixer according to claim 1, characterized in that, The top plate (34) is provided with an upper adjustment hole (341); the bottom plate (35) is provided with a lower adjustment hole (351); there are two upper adjustment holes (341); there are two lower adjustment holes (351); the two upper adjustment holes (341) are symmetrically arranged with the main shaft (2) as the axis; the two lower adjustment holes (351) are symmetrically arranged with the main shaft (2) as the axis; the second blade (32) is connected to the fixing component through the upper adjustment hole (341) and the lower adjustment hole (351).

4. The mixer according to claim 3, characterized in that, The upper adjustment hole (341) is an arc-shaped slot structure with both ends pointing downwards and the middle protruding, and the lower adjustment hole (351) is an arc-shaped slot structure with both ends pointing upwards and the middle concave; the lower adjustment hole (351) is located directly below the upper adjustment hole (341); a symmetry line (36) is formed between the center point of the upper adjustment hole (341) and the center point of the lower adjustment hole (351); each upper adjustment hole (341) is symmetrical about the symmetry line (36) as the axis; each lower adjustment hole (351) is symmetrical about the symmetry line (36) as the axis.

5. The mixer according to claim 4, characterized in that, The upper part of the second blade (32) rotates within the upper adjustment hole (341); the lower part of the second blade (32) rotates within the lower adjustment hole (351).

6. The mixer according to claim 5, characterized in that, When the upper part of the second blade (32) rotates within the upper adjustment hole (341), the bottom of the second blade (32) is set at the center point of the lower adjustment hole (351), and when the lower part of the second blade (32) rotates within the lower adjustment hole (351), the top of the second blade (32) is set at the center point of the upper adjustment hole (341); when the second blade (32) rotates, the angle between the second blade (32) and the line of symmetry (36) is α; 0°≤α≤20°.

7. The mixer according to claim 1, characterized in that, The second blade (32) is provided with a first micro blade (321) and a second micro blade (322); the first micro blade (321) is disposed on the upper part of the second blade (32); The second microblade (322) is disposed at the lower part of the second blade (32).

8. The mixer according to claim 7, characterized in that, The first microblade (321) and the second microblade (322) are inclined; the first microblade (321) and the second microblade (322) are inclined in opposite directions.

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