Blade angle-adjustable stirrer of flocculation basin

Abstract

The invention discloses a blade angle-adjustable stirrer for a flocculation basin, relates to the field of sewage treatment stirring equipment, and aims to solve the problems that most flocculation stirrers in the prior art adopt a method for lowering the frequency and reducing the rotating speed through a frequency converter, and the frequency converter and a motor are in low frequency in a long-term working state and are easy to break down or damage. The lower end of the rotating pipe penetrates through the circular opening, extends to the lower end in the flocculation tank and is fixedly connected with an angle adjusting device, fixed pipes are fixedly connected to the middles of the two sides and the middles of the front end and the rear end of the angle adjusting device, and stirring blades are rotationally connected to the outer sides of the fixed pipes; an adjusting shaft for driving the four stirring blades to deflect at the same time is rotationally connected into the rotating pipe, a transmission box is fixedly connected to the upper end of the supporting frame, the rotating pipe penetrates through the interior of the transmission box and extends out of the upper end face of the transmission box, and the upper end of the adjusting shaft extends out of the upper end of the rotating pipe and is connected with an annular locking piece.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment stirring equipment, in particular to a flocculation tank stirrer with adjustable blade angle. Background Art

[0002] The flocculation tank mixer is a mechanical device used to accelerate the dispersion and mixing of flocculants in water. The main function of the flocculation tank mixer is to drive the transmission shaft to rotate through the motor, so that the stirring impeller generates power to evenly disperse the flocculant in the water. At the same time, the stirring impeller will also produce strong vortex and mixing effects, so that the flocculant can combine with impurities, suspended matter, etc. in the water more quickly to form larger flocs and accelerate precipitation. This equipment plays an important role in the dissolution and stirring process of adding chemicals in water supply plants, sewage treatment plants and other places. It is mainly used to accelerate the dispersion and mixing of flocculants in water, thereby improving treatment efficiency and quality.

[0003] For example, the authorization announcement number CN 220976681 U is specifically a flocculation tank mixer, including a mounting frame, a guide frame, a first screw, a guide rod, a motor, a mounting plate, a mixer, a second screw, and a synchronous motor. When the first screw rotates, it can drive the guide frame to move, thereby driving the mounting plate installed above the guide frame and the mixer above the mounting plate to move along the direction of the first screw. The guide rod is slidably connected to the guide frame, and the moving block is installed above the mounting plate. When the moving block moves synchronously, it will synchronously drive the mounting plate to move synchronously, so that the mixer installed above the mounting plate can move laterally, and the flocculation reactant and the water to be treated are stirred and mixed by the stirring rod arranged at the output end of the mixer, so that they can react fully. It can also make a certain displacement during stirring to expand the working range, so that there is no need to assemble multiple mixers, thereby reducing investment costs.

[0004] In the existing flocculation mixers, there is a problem of high turbidity of the effluent water due to insufficient stirring or excessive stirring. Therefore, most of them adopt the method of reducing the speed by lowering the frequency through the frequency converter. The frequency converter and the motor are at a low frequency under long-term working conditions, which is prone to failure or damage. Therefore, the market urgently needs to develop a flocculation tank adjustable blade angle mixer to help people solve the existing problem. Summary of the invention

[0005] The object of the present invention is to provide a flocculation tank mixer with adjustable blade angle to solve the problem of high turbidity of effluent water caused by insufficient stirring or excessive stirring in the existing flocculation mixers mentioned in the above background technology. Therefore, most of them adopt the method of reducing the speed by lowering the frequency through the frequency converter. The frequency converter and the motor are at low frequency under long-term working conditions, which is prone to failure or damage.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a flocculation tank adjustable blade angle mixer, comprising a flocculation tank, a circular opening is provided in the middle of the upper end of the flocculation tank, a support frame is fixedly provided on the upper end of the circular opening, a stabilizing tube is fixedly connected to the middle of the support frame, a rotating tube is rotatably connected to the middle of the stabilizing tube, the lower end of the rotating tube extends through the circular opening to the lower end of the interior of the flocculation tank and is fixedly connected to an angle adjustment device, stirring blades are rotatably connected in the middle of both sides of the angle adjustment device and in the middle of the front and rear ends, an adjusting shaft is rotatably connected inside the rotating tube for driving four stirring blades to deflect at the same time, a transmission box is fixedly connected to the upper end of the support frame, the rotating tube extends through the interior of the transmission box to the upper end surface of the transmission box, the upper end of the adjusting shaft extends out of the upper end of the rotating tube and is connected to an annular locking piece.

[0007] Preferably, an annular support plate is fixedly connected to the lower end of the support frame, and the annular support plate is fixedly connected to the upper end surface of the flocculation tank by bolts.

[0008] Preferably, the rotating tube is inside the stabilizing tube and connected to the inner wall of the stabilizing tube via a plurality of bearings.

[0009] Preferably, one end of each stirring blade is fixedly connected to a connecting shaft, and the middle parts of both sides and the front and rear ends of the angle adjustment device are fixedly connected to fixed tubes, and the four connecting shafts respectively pass through the middle parts of the four fixed tubes and extend into the interior of the angle adjustment device and are fixedly connected to the first conical teeth.

[0010] Preferably, the lower end of the adjustment shaft extends into the interior of the angle adjustment device and is fixedly connected with a second conical tooth, and the upper ends of the four first conical teeth are all meshedly connected with the tooth portions of the second conical teeth.

[0011] Preferably, rectangular slots are provided on both sides of the annular locking member, and the upper end of the adjusting shaft extends out of the upper end of the rotating tube and is fixedly connected with rectangular limiting strips on both sides.

[0012] Preferably, the two rectangular limit strips on the adjusting shaft slide into the two rectangular slots on the annular locking member respectively.

[0013] Preferably, rectangular inserts are fixedly connected to both sides of the lower end surface of the annular locking piece, a plurality of symmetrical rectangular slots are arranged in a circular array on the upper end of the outer end surface of the rotating tube, the two rectangular inserts at the lower end of the annular locking piece are respectively inserted into two symmetrical rectangular slots among the plurality of rectangular slots on the rotating tube, and the upper end of the adjusting shaft passes through the middle part of the annular locking piece and is fixedly connected to a handwheel.

[0014] Preferably, a first pulley is fixedly connected on the outer end surface of the rotating tube and inside the transmission box, a parallel axis gear reducer is fixedly connected to one side of the upper end of the transmission box for driving the rotating tube to rotate, and the output shaft of the parallel axis gear reducer extends into the transmission box and is fixedly connected to a second pulley.

[0015] Preferably, the first pulley and the second pulley are rotationally connected via a transmission belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the invention, through the setting of the angle adjustment device, the lower end of the rotating tube passes through the circular opening and extends to the lower end of the flocculation tank and is fixedly connected with the angle adjustment device. The middle parts of both sides of the angle adjustment device and the middle parts of the front and rear ends are fixedly connected with fixed tubes. The outer sides of the fixed tubes are rotatably connected with stirring blades. One end of each stirring blade is fixedly connected with a connecting shaft. The four connecting shafts respectively pass through the middle parts of the four fixed tubes and extend to the inside of the angle adjustment device and are fixedly connected with the first conical teeth. The lower end of the adjusting shaft extends to the inside of the angle adjustment device and is fixedly connected with the second conical teeth. The upper ends of the four first conical teeth are meshed and connected with the tooth parts of the second conical teeth. When the angle of the stirring blade needs to be adjusted, the rotation of the angle adjustment device is stopped, and the adjusting shaft is driven to rotate by the hand wheel, and then the adjusting shaft drives the connecting shafts on the four stirring blades to rotate at the same time, so that the four stirring blades can be deflected and adjusted at the same time. The consistency is high and the balance is good. When the sewage in the flocculation tank is not needed, the adjusting shaft can be manually rotated directly on the top of the flocculation tank to arbitrarily adjust the angle of the stirring blade, change the water-facing area of ​​the stirring blade, and achieve the best flocculation effect.

[0018] 2. In the invention, through the setting of the annular locking piece, rectangular grooves are set on both sides of the annular locking piece. After the upper end of the adjusting shaft extends out of the upper end of the rotating tube, rectangular limit strips are fixedly connected on both sides. The two rectangular limit strips on the adjusting shaft slide into the two rectangular grooves on the annular locking piece respectively, so that the annular locking piece can slide up and down on the adjusting shaft. At the same time, the annular locking piece is restricted from rotating on the adjusting shaft by the rectangular limit strips. Rectangular inserts are fixedly connected on both sides of the lower end surface of the annular locking piece. A plurality of symmetrical rectangular slots are set in an annular array on the upper end of the outer end surface of the rotating tube. The two rectangular inserts at the lower end of the annular locking piece are respectively Insert the rectangular strips into two symmetrical rectangular slots among the multiple rectangular slots on the rotating tube, and insert the rectangular strips into the rectangular slots to keep the adjustment shaft and the rotating tube limited and fixed, so that the adjusting shaft is synchronously driven to rotate when the rotating tube rotates, to prevent the adjustment shaft from rotating asynchronously when the rotating tube rotates, causing the stirring blade to deflect and affecting the stirring effect. When the angle of the stirring blade needs to be adjusted, the annular locking piece is pulled upward to disengage the rectangular strips at the lower end of the annular locking piece from the rectangular slot, and the adjustment shaft can be driven to rotate by the handwheel. At this time, the rotating tube remains prohibited, so that the angle adjustment device remains prohibited synchronously, thereby realizing the angle adjustment of the stirring blade.

[0019] 3. In the invention, through the setting of the stabilizing tube, the middle part of the support frame is fixedly connected with the stabilizing tube, the middle part of the stabilizing tube is rotatably connected with the rotating tube, and the rotating tube is connected to the inner wall of the stabilizing tube through multiple bearings inside the stabilizing tube, so that the stabilizing tube limits the upper end of the rotating tube to ensure the stability of the rotating tube during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the flocculation tank mixer with adjustable blade angle of the present invention;

[0021] Figure 2 It is a main cross-sectional view of the present invention;

[0022] Figure 3 is a side sectional view of the present invention;

[0023] Figure 4 It is an enlarged view of the detail A of the present invention;

[0024] Figure 5 It is an enlarged view of detail B of the present invention;

[0025] Figure 6 It is an enlarged view of the detail C of the present invention.

[0026] In the figure: 1, flocculation tank; 101, circular opening; 2, support frame; 201, annular support plate; 202, bolt; 203, stabilizing tube; 204, bearing; 3, rotating tube; 301, first pulley; 302, rectangular slot; 4, angle adjustment device; 401, fixed tube; 402, stirring blade; 403, connecting shaft; 404, first conical tooth; 5, adjusting shaft; 501, second conical tooth; 502, rectangular limit strip; 503, annular locking piece; 504, rectangular slot; 505, rectangular insert; 506, handwheel; 6, transmission box; 601, parallel shaft gear reducer; 602, second pulley; 603, transmission belt. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figure 1-6 An embodiment of the present invention provides: a flocculation tank adjustable blade angle mixer, comprising a flocculation tank 1, a circular opening 101 is provided in the middle of the upper end of the flocculation tank 1, a support frame 2 is fixedly provided on the upper end of the circular opening 101, a stabilizing tube 203 is fixedly connected to the middle of the support frame 2, a rotating tube 3 is rotatably connected to the middle of the stabilizing tube 203, the lower end of the rotating tube 3 passes through the circular opening 101 and extends to the lower end of the flocculation tank 1 and is fixedly connected to an angle adjustment device 4, the middle of both sides of the angle adjustment device 4 and the middle of the front and rear ends are fixedly connected to fixed tubes 401, the fixed tube The outer sides of 401 are rotatably connected with stirring blades 402, the interior of the rotating tube 3 is rotatably connected with an adjusting shaft 5 which drives the four stirring blades 402 to deflect at the same time, the upper end of the support frame 2 is fixedly connected with a transmission box 6, the rotating tube 3 passes through the interior of the transmission box 6 and extends out of the upper end surface of the transmission box 6, the upper end of the adjusting shaft 5 extends out of the upper end of the rotating tube 3 and is connected with an annular locking piece 503, the upper end of the adjusting shaft 5 passes through the middle part of the annular locking piece 503 and is fixedly connected with a hand wheel 506, and one side of the upper end of the transmission box 6 is fixedly connected with a parallel shaft gear reducer 601 for driving the rotating tube 3 to rotate.

[0029] Furthermore, an annular support plate 201 is fixedly connected to the lower end of the support frame 2 , and the annular support plate 201 is fixedly connected to the upper end surface of the flocculation tank 1 by bolts 202 , so that the support frame 2 is stably connected to the upper end of the flocculation tank 1 .

[0030] Furthermore, the rotating tube 3 is connected to the inner wall of the stabilizing tube 203 via a plurality of bearings 204 , so that the stabilizing tube 203 limits the upper end of the rotating tube 3 , thereby ensuring the stability of the rotating tube 3 during rotation.

[0031] Furthermore, one end of each stirring blade 402 is fixedly connected to a connecting shaft 403 . The four connecting shafts 403 respectively pass through the middle of the four fixing tubes 401 and extend to the inside of the angle adjustment device 4 and are fixedly connected to the first conical teeth 404 .

[0032] Furthermore, the lower end of the adjusting shaft 5 extends to the interior of the angle adjusting device 4 and is fixedly connected with the second conical tooth 501. The upper ends of the four first conical teeth 404 are meshed and connected with the teeth of the second conical teeth 501. When the angle of the stirring blade 402 needs to be adjusted, the rotation of the angle adjusting device 4 is stopped, and the adjusting shaft 5 is driven to rotate by the hand wheel 506, so that the adjusting shaft 5 simultaneously drives the connecting shafts 403 on the four stirring blades 402 to rotate, so that the four stirring blades 402 can be deflected and adjusted at the same time with high consistency and good balance. When there is no sewage in the flocculation tank 1, the adjusting shaft 5 can be manually rotated directly on the top of the flocculation tank 1 to arbitrarily adjust the angle of the stirring blade 402, change the water-facing area of ​​the stirring blade 402, and achieve the best flocculation effect.

[0033] Furthermore, rectangular slots 504 are provided on both sides of the annular locking member 503 , and the upper end of the adjusting shaft 5 extends out of the upper end of the rotating tube 3 and is fixedly connected with rectangular limiting strips 502 on both sides.

[0034] Furthermore, the two rectangular limit strips 502 on the adjustment shaft 5 slide into the two rectangular slots 504 on the annular locking piece 503 respectively, so that the annular locking piece 503 can slide up and down on the adjustment shaft 5, and at the same time, the rectangular limit strips 502 limit the annular locking piece 503 from rotating on the adjustment shaft 5.

[0035] Furthermore, rectangular inserts 505 are fixedly connected to both sides of the lower end surface of the annular locking piece 503, and a plurality of symmetrical rectangular slots 302 are arranged in an annular array on the upper end of the outer end surface of the rotating tube 3. The two rectangular inserts 505 at the lower end of the annular locking piece 503 are respectively inserted into two symmetrical rectangular slots 302 among the plurality of rectangular slots 302 on the rotating tube 3. The rectangular inserts 505 are inserted into the rectangular slots 302 to keep the adjustment shaft 5 and the rotating tube 3 in a limited position, so that the adjustment shaft 5 is synchronously driven to rotate when the rotating tube 3 rotates, and the adjustment shaft 5 is prevented from rotating asynchronously when the rotating tube 3 rotates, causing the stirring blade 402 to deflect and affect the stirring effect. When the angle of the stirring blade 402 needs to be adjusted, the annular locking piece 503 is pulled upward to disengage the rectangular insert 505 at the lower end of the annular locking piece 503 from the rectangular slot 302, and the adjustment shaft 5 can be driven to rotate by the hand wheel 506. At this time, the rotating tube 3 remains prohibited, so that the angle adjustment device 4 remains prohibited synchronously, thereby realizing the angle adjustment of the stirring blade 402.

[0036] Furthermore, a first pulley 301 is fixedly connected on the outer end surface of the rotating tube 3 and inside the transmission box 6, and an output shaft of the parallel axis gear reducer 601 extends into the transmission box 6 and is fixedly connected to a second pulley 602.

[0037] Furthermore, the first pulley 301 is rotatably connected to the second pulley 602 via a transmission belt 603, which drives the rotating tube 3 to rotate via the parallel shaft gear reducer 601, thereby driving the rotating tube 3 to rotate the angle adjustment device 4, and the angle adjustment device 4 simultaneously drives the four stirring blades 402 to rotate to stir the inside of the flocculation tank 1.

[0038] Working principle: When in use, it is first driven by the parallel shaft gear reducer 601, and the second pulley 602 on its output shaft is connected to the first pulley 301 on the rotating tube 3 through the transmission belt 603 to realize the transmission of power. The start of the parallel shaft gear reducer 601 causes the rotating tube 3 to rotate in the stabilizing tube 203, thereby driving the angle adjustment device 4 fixedly connected to the lower end of the rotating tube 3 and the four stirring blades 402 thereon to rotate synchronously. During the stirring process, if the angle of the stirring blade 402 needs to be adjusted to meet different stirring requirements, the operator can stop the parallel shaft gear reducer 601, and then pull the annular locking member 503 upward to disengage the rectangular insert 505 at the lower end of the annular locking member 503 from the rectangular slot 302 on the rotating tube 3, thereby releasing the limit fixation of the adjustment shaft 5. At this time, the operator can turn the hand wheel 506, and the rotation of the hand wheel ensures that the rotation force of the hand wheel directly acts on the adjustment shaft 5 through the sliding of the rectangular limit strip 502 on the adjustment shaft 5 in the rectangular slot 504 of the annular locking member 503. The rotation of the adjustment shaft 5 drives the second conical teeth 501 at its lower end to rotate, and then drives the first conical teeth 404 on the four stirring blades 402 to rotate through the meshing relationship, so as to achieve the simultaneous deflection adjustment angle of the four stirring blades 402. After the adjustment is completed, the rectangular insert 505 of the annular locking member 503 is inserted into the corresponding rectangular slot 302 on the rotating tube 3 again to fix the adjustment shaft 5, ensure the stability during the stirring process, and achieve the rapid and flexible adjustment of the angle of the stirring blade without interrupting the stirring process, so as to optimize the stirring effect, reduce the turbidity of the effluent, and improve the flocculation treatment efficiency.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A flocculation tank mixer with adjustable blade angle, comprising a flocculation tank (1), characterized in that: A circular opening (101) is provided in the middle of the upper end of the flocculation tank (1); a support frame (2) is fixedly provided on the upper end of the circular opening (101); a stabilizing tube (203) is fixedly connected to the middle of the support frame (2); a rotating tube (3) is rotatably connected to the middle of the stabilizing tube (203); a lower end of the rotating tube (3) passes through the circular opening (101) and extends to the lower end of the interior of the flocculation tank (1) and is fixedly connected to an angle adjustment device (4); stirring blades (402) are rotatably connected to the middle of both sides and the middle of the front and rear ends of the angle adjustment device (4); an adjusting shaft (5) is rotatably connected inside the rotating tube (3) for driving four stirring blades (402) to deflect at the same time; a transmission box (6) is fixedly connected to the upper end of the support frame (2); the rotating tube (3) passes through the interior of the transmission box (6) and extends out of the upper end surface of the transmission box (6); the upper end of the adjusting shaft (5) extends out of the upper end of the rotating tube (3) and is connected to an annular locking member (503).

2. The flocculation tank adjustable blade angle mixer according to claim 1, characterized in that: An annular support plate (201) is fixedly connected to the lower end of the support frame (2), and the annular support plate (201) is fixedly connected to the upper end surface of the flocculation tank (1) via bolts (202).

3. The flocculation tank adjustable blade angle mixer according to claim 1, characterized in that: The rotating tube (3) is inside the stabilizing tube (203) and is connected to the inner wall of the stabilizing tube (203) via a plurality of bearings (204).

4. The flocculation tank adjustable blade angle mixer according to claim 1, characterized in that: One end of each stirring blade (402) is fixedly connected to a connecting shaft (403), and the middle parts of both sides and the middle parts of the front and rear ends of the angle adjustment device (4) are fixedly connected to fixed tubes (401), and the four connecting shafts (403) respectively pass through the middle parts of the four fixed tubes (401) to extend into the interior of the angle adjustment device (4) and are fixedly connected to the first conical teeth (404).

5. The flocculation tank adjustable blade angle mixer according to claim 4, characterized in that: The lower end of the adjustment shaft (5) extends into the interior of the angle adjustment device (4) and is fixedly connected to a second conical tooth (501); the upper ends of the four first conical teeth (404) are all meshedly connected to the tooth portions of the second conical teeth (501).

6. The flocculation tank adjustable blade angle mixer according to claim 1, characterized in that: Rectangular slots (504) are provided on both sides of the annular locking member (503). The upper end of the adjusting shaft (5) extends out of the upper end of the rotating tube (3) and is fixedly connected with rectangular limiting strips (502) on both sides.

7. The flocculation tank adjustable blade angle mixer according to claim 6, characterized in that: The two rectangular limiting strips (502) on the adjusting shaft (5) slide into the two rectangular slots (504) on the annular locking member (503) respectively.

8. The flocculation tank adjustable blade angle mixer according to claim 1, characterized in that: Rectangular inserts (505) are fixedly connected to both sides of the lower end surface of the annular locking piece (503); a plurality of symmetrical rectangular slots (302) are arranged in an annular array on the upper end of the outer end surface of the rotating tube (3); two rectangular inserts (505) at the lower end of the annular locking piece (503) are respectively inserted into two symmetrical rectangular slots (302) among the plurality of rectangular slots (302) on the rotating tube (3); and the upper end of the adjusting shaft (5) passes through the middle of the annular locking piece (503) and is fixedly connected to a hand wheel (506).

9. The flocculation tank adjustable blade angle mixer according to claim 1, characterized in that: A first pulley (301) is fixedly connected on the outer end surface of the rotating tube (3) and inside the transmission box (6); a parallel-axis gear reducer (601) for driving the rotating tube (3) to rotate is fixedly connected to one side of the upper end of the transmission box (6); an output shaft of the parallel-axis gear reducer (601) extends into the interior of the transmission box (6) and is fixedly connected to a second pulley (602).

10. The flocculation tank adjustable blade angle mixer according to claim 9, characterized in that: The first pulley (301) and the second pulley (602) are rotationally connected via a transmission belt (603).

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