Double-curved-surface stirring machine for sewage treatment

Abstract

The utility model discloses a double-curved-surface stirrer for sewage treatment, which belongs to the technical field of sewage treatment and comprises a motor, a transmission shaft is fixedly connected to the output end of the motor, and a double-curved-surface stirring impeller is fixedly connected to the lower end of the transmission shaft. Flanges are fixedly connected to the ends, close to each other, of the transmission shaft and the double-curved-surface stirring impeller, the flanges are fixed through six sets of bolts and nuts, a packaging base plate is fixedly connected to the outer circumferential face of a port of the double-curved-surface stirring impeller, a sealing groove is formed in the surface of the packaging base plate, and a connecting ring is fixedly connected to the outer circumferential face of the transmission shaft; the sealing cover and the packaging base plate can protect a flange, a bolt, a nut and other connecting parts, the connecting parts can be prevented from making contact with sewage, the possibility that the connecting parts are corroded is reduced, and the phenomenon that the connecting parts are particularly difficult to disassemble during later maintenance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically to a hyperbolic mixer for sewage treatment. Background Art

[0002] Mixers can be widely used in environmental protection, chemical industry, energy, light industry and other industries where solid-liquid and gas mixing of liquids is required. Hyperbolic mixers are especially suitable for coagulation tanks, regulating tanks, anaerobic tanks, nitrification and denitrification tanks in sewage treatment processes.

[0003] The curved stirring impeller of the existing hyperbolic mixer is generally fixed by a flange with bolts. However, during the sewage treatment process, the curved stirring impeller and the connection must be immersed in the sewage. In particular, some sewage contains corrosive substances. Long-term use can easily cause rust on the connection of the curved stirring impeller, which is particularly difficult to disassemble during later maintenance. Therefore, the utility model provides a hyperbolic mixer for sewage treatment. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a hyperbolic mixer for sewage treatment, which solves the problem that when the hyperbolic mixer is working, the curved stirring impeller and the connection must be immersed in sewage, and the sewage can easily cause rust at the connection of the curved stirring impeller, which is particularly difficult to disassemble during later maintenance.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A hyperbolic mixer for sewage treatment, comprising a motor, wherein the output end of the motor is fixedly connected to a transmission shaft, the lower end of the transmission shaft is fixedly connected to a hyperbolic stirring impeller, the transmission shaft and the hyperbolic stirring impeller are fixedly connected to flanges at their ends close to each other, and the flanges are fixed by six sets of bolts and nuts;

[0009] The outer circumferential surface of the port of the hyperbolic stirring impeller is fixedly connected with a packaging chassis, a sealing groove is opened on the surface of the packaging chassis, a connecting ring is fixedly connected with the outer circumferential surface of the transmission shaft, an elastic corrugated sleeve is fixedly connected at the lower end of the connecting ring, a sealing cover is fixedly connected at the lower end of the elastic corrugated sleeve, a sealing layer is fixedly connected at the lower end of the sealing cover, the sealing layer is embedded in the sealing groove, a downward pressing linkage block is fixedly connected to the upper end of the sealing cover, the outer circumferential surface of the transmission shaft is also rotatably connected with a downward pressing mechanism, and the lower end of the downward pressing mechanism is in contact with the upper end of the downward pressing linkage block.

[0010] Furthermore, the downward pressure mechanism includes a connecting ring, a pressure rod, a force arm rod and a bearing, the bearing is fixedly connected to the outer circumferential surface of the transmission shaft, the outer circumferential surface of the bearing is fixedly connected to the connecting ring, the lower end of the connecting ring is fixedly connected to a pair of pressure rods, the lower ends of the pair of pressure rods are in contact with the downward pressure linkage block, and the outer circumferential surface of the connecting ring is embedded with a pair of force arm rods.

[0011] Furthermore, a pair of notches is formed on the outer circumferential surface of the connecting ring, and the notch is engaged with one end of the lever arm.

[0012] Furthermore, a receiving opening is provided at the upper end of the sealing cover, and the receiving opening is engaged with the lower end of the pressing mechanism.

[0013] Furthermore, a positioning groove is provided at the upper end of the downward pressing linkage block, and the positioning groove matches the lower end of the pressing rod, and the lower end of the pressing rod is in an arc shape.

[0014] Furthermore, the inner wall of the sealing groove is provided with three annular grooves.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) After fixing the transmission shaft and the hyperbolic impeller by means of flanges and six sets of bolts and nuts, the pressing mechanism is rotated, and the pressing mechanism cooperates with the pressing linkage block to drive the sealing cover to be pressed down until the sealing layer at the lower end of the sealing cover is tightly embedded in the sealing groove of the packaging chassis, thereby ensuring the sealing of the sealing cover and the packaging chassis. The sealing cover and the packaging chassis can protect the flanges and connecting parts such as bolts and nuts, prevent the connecting parts from contacting with sewage, and reduce the possibility of rust on the connecting parts, so as to avoid the phenomenon that the connecting parts are particularly difficult to disassemble during later maintenance.

[0018] (2) This solution can drive the pressure rod to rotate by rotating the connecting ring. During the rotation process, the pressure rod cooperates with the downward pressing linkage block to drive the sealing cover to be directly pressed down vertically. When the lower end of the pressure rod is engaged with the positioning groove on the plane of the downward pressing linkage block, self-locking can be achieved. Subsequently, the upward rebound of the sealing cover will not be able to drive the connecting ring to rotate, so as to ensure the stability of the sealing cover and the packaging chassis during sealing. In addition, the axial rotation of the connecting ring can facilitate personnel to exert better force, so that the sealing cover and the sealing layer can be fully pressed down, ensuring the sealing effect between the sealing cover and the packaging chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2This is a schematic diagram of the structure of a part of the connection of the hyperbolic stirring impeller of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the utility model in which the sealing cover is in an open state;

[0022] Figure 4 This is a structural schematic diagram of the utility model in a state where the sealing cover is removed;

[0023] Figure 5 This is a schematic diagram of the cutaway structure of the sealing cover of the utility model;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the connection of the utility model;

[0025] Figure 7 For this utility model Figure 6 Enlarged structural diagram at A in the middle.

[0026] Description of the numbers in the figure:

[0027] 1. Motor; 2. Drive shaft; 3. Hyperbolic stirring impeller; 4. Flange; 41. Bolt; 42. Nut; 5. Package chassis; 51. Sealing groove; 511. Annular groove; 6. Connecting ring; 7. Elastic corrugated sleeve; 8. Sealing cover; 81. Sealing layer; 83. Pressing linkage block; 821. Positioning groove; 83. Storage port; 9. Pressing mechanism; 91. Connecting ring; 911. Notch; 92. Pressure rod; 93. Lever rod; 94. Bearing. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] Example

[0030] like Figure 1-7 As shown, a hyperbolic mixer for sewage treatment includes a motor 1, a transmission shaft 2 is fixedly connected to the output end of the motor 1, a hyperbolic mixing impeller 3 is fixedly connected to the lower end of the transmission shaft 2, and flanges 4 are fixedly connected to the ends of the transmission shaft 2 and the hyperbolic mixing impeller 3 that are close to each other, and the flanges 4 are fixed by six sets of bolts 41 and nuts 42;

[0031] The outer circumferential surface of the port of the hyperbolic stirring impeller 3 is fixedly connected with a packaging chassis 5, and a sealing groove 51 is opened on the surface of the packaging chassis 5. The outer circumferential surface of the transmission shaft 2 is fixedly connected with a connecting ring 6, and the lower end of the connecting ring 6 is fixedly connected with an elastic corrugated sleeve 7, and the lower end of the elastic corrugated sleeve 7 is fixedly connected with a sealing cover 8, and the lower end of the sealing cover 8 is fixedly connected with a sealing layer 81, which is embedded in the sealing groove 51, and the upper end of the sealing cover 8 is fixedly connected with a downward pressing linkage block 82. The outer circumferential surface of the transmission shaft 2 is also rotatably connected with a downward pressing mechanism 9, and the lower end of the downward pressing mechanism 9 is in contact with the upper end of the downward pressing linkage block 82.

[0032] When in use, after fixing the transmission shaft 2 and the hyperbolic stirring impeller 3 by the flange 4 and six groups of bolts 41 and nuts 42, rotate the pressing mechanism 9, and the pressing mechanism 9 cooperates with the pressing linkage block 82 to drive the sealing cover 8 to be pressed down until the sealing layer 81 at the lower end of the sealing cover 8 is tightly embedded in the sealing groove 51 of the packaging chassis 5, ensuring the sealing of the sealing cover 8 and the packaging chassis 5. The sealing cover 8 and the packaging chassis 5 can protect the flange 4 and the bolts 41, nuts 42 and other connecting parts, prevent the connecting parts from contacting with sewage, reduce the possibility of rust on the connecting parts, and avoid the phenomenon that it is particularly difficult to disassemble during later maintenance.

[0033] like Figure 2-6 As shown, the pressing mechanism 9 includes a connecting ring 91, a pressing rod 92, a force arm rod 93 and a bearing 94. The bearing 94 is fixedly connected to the outer circumferential surface of the transmission shaft 2. The outer circumferential surface of the bearing 94 is fixedly connected to the connecting ring 91. The lower end of the connecting ring 91 is fixedly connected to a pair of pressing rods 92. The lower ends of the pair of pressing rods 92 are in contact with the pressing linkage block 82. The outer circumferential surface of the connecting ring 91 is embedded with a pair of force arm rods 93.

[0034] When in use, the pressure rod 92 can be driven to rotate by rotating the connecting ring 91. During the rotation process, the pressure rod 92 cooperates with the downward pressing linkage block 82 to drive the sealing cover 8 to be directly pressed down vertically. When the lower end of the pressure rod 92 is engaged with the positioning groove 821 at the plane of the downward pressing linkage block 82, self-locking can be achieved. Subsequently, the upward rebound of the sealing cover 8 will not be able to drive the connecting ring 91 to rotate, so as to ensure the stability of the sealing cover 8 and the packaging chassis 5 during sealing. Moreover, the axial rotation of the connecting ring 91 can facilitate personnel to exert better force, so that the sealing cover 8 and the sealing layer 81 can be fully pressed down, thereby ensuring the sealing effect between the sealing cover 8 and the packaging chassis 5.

[0035] like Figure 2-3 As shown, a pair of notches 911 are formed on the outer circumferential surface of the connecting ring 91 , and the notch 911 is engaged with one end of the lever arm 93 .

[0036] When in use, the lever arm 93 allows a person to exert force to rotate the connecting ring 91 better, and the lever arm 93 can be removed from the connecting ring 91 to avoid unnecessary increase in the weight of the transmission shaft 2 and thus increase in energy consumption.

[0037] like Figure 2-3 As shown, a receiving opening 83 is provided at the upper end of the sealing cover 8 , and the receiving opening 83 is engaged with the lower end of the pressing mechanism 9 .

[0038] During use, when the sealing cover 8 is opened upward, the lower end of the pressing mechanism 9 can be embedded in the receiving opening 83, so as to facilitate the sealing cover 8 to be fully opened.

[0039] like Figure 2-5 As shown, a positioning groove 821 is provided at the upper end of the downward pressing linkage block 82, and the positioning groove 821 matches the lower end of the pressing rod 92, and the lower end of the pressing rod 92 is in an arc shape.

[0040] When in use, when the lower end of the pressure rod 92 is engaged with the positioning groove 821 on the plane of the downward pressing linkage block 82, self-locking can be achieved. Moreover, the pressure rod 92 at the arc end can reduce the friction between the pressure rod 92 and the downward pressing linkage block 82, so that personnel can save more effort during operation.

[0041] like Figure 6-7 As shown, three annular grooves 511 are formed on the inner wall of the sealing groove 51 .

[0042] During use, after the sealing layer 81 is fully squeezed, the sealing layer 81 will be embedded in the annular groove 511 , thereby further improving the sealing performance of the sealing cover 8 and the packaging chassis 5 .

[0043] In summary, the specific working process of this scheme is as follows: after fixing the transmission shaft 2 and the hyperbolic stirring impeller 3 by means of the flange 4 and six groups of bolts 41 and nuts 42, the pressing mechanism 9 is rotated, and the pressing mechanism 9 cooperates with the pressing linkage block 82 to drive the sealing cover 8 to press down until the sealing layer 81 at the lower end of the sealing cover 8 is tightly embedded in the sealing groove 51 of the packaging chassis 5, thereby ensuring the sealing performance of the sealing cover 8 and the packaging chassis 5. The sealing cover 8 and the packaging chassis 5 can protect the flange 4 and the connecting parts such as the bolts 41 and the nuts 42, thereby preventing the connecting parts from contacting with the sewage and reducing the possibility of rusting of the connecting parts, so as to avoid the phenomenon that it is particularly difficult to disassemble during the later maintenance;

[0044] Among them, the connecting ring 91 in the pressing mechanism 9 can be driven to rotate by rotating the pressure rod 92. During the rotation process, the pressure rod 92 cooperates with the pressing linkage block 82 to drive the sealing cover 8 to be directly pressed down vertically. When the lower end of the pressure rod 92 is engaged with the positioning groove 821 at the plane of the pressing linkage block 82, self-locking can be achieved. Subsequently, the upward rebound of the sealing cover 8 will not be able to drive the connecting ring 91 to rotate, so as to ensure the stability of the sealing cover 8 and the packaging chassis 5 during sealing. Moreover, the axial rotation of the connecting ring 91 can facilitate personnel to exert better force, so that the sealing cover 8 and the sealing layer 81 can be fully pressed down, thereby ensuring the sealing effect between the sealing cover 8 and the packaging chassis 5.

[0045] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A hyperbolic mixer for sewage treatment, comprising a motor (1), characterized in that: The output end of the motor (1) is fixedly connected to a transmission shaft (2), the lower end of the transmission shaft (2) is fixedly connected to a hyperbolic stirring impeller (3), the ends of the transmission shaft (2) and the hyperbolic stirring impeller (3) close to each other are fixedly connected to flanges (4), and the flanges (4) are fixed by six groups of bolts (41) and nuts (42); The outer circumferential surface of the port of the hyperbolic stirring impeller (3) is fixedly connected to a packaging chassis (5), and a sealing groove (51) is provided on the surface of the packaging chassis (5). The outer circumferential surface of the transmission shaft (2) is fixedly connected to a connecting ring (6), and the lower end of the connecting ring (6) is fixedly connected to an elastic corrugated sleeve (7), and the lower end of the elastic corrugated sleeve (7) is fixedly connected to a sealing cover (8), and the lower end of the sealing cover (8) is fixedly connected to a sealing layer (81), and the sealing layer (81) is embedded in the sealing groove (51). The upper end of the sealing cover (8) is fixedly connected to a downward pressing linkage block (82), and the outer circumferential surface of the transmission shaft (2) is also rotatably connected to a downward pressing mechanism (9), and the lower end of the downward pressing mechanism (9) is in contact with the upper end of the downward pressing linkage block (82).

2. A hyperbolic mixer for sewage treatment according to claim 1, characterized in that: The pressing mechanism (9) comprises a connecting ring (91), a pressing rod (92), a lever arm (93) and a bearing (94); the bearing (94) is fixedly connected to the outer circumferential surface of the transmission shaft (2); the outer circumferential surface of the bearing (94) is fixedly connected to the connecting ring (91); the lower end of the connecting ring (91) is fixedly connected to a pair of pressing rods (92); the lower ends of the pair of pressing rods (92) are in contact with the pressing linkage block (82); and the outer circumferential surface of the connecting ring (91) is embedded with a pair of lever arm rods (93).

3. A hyperbolic mixer for sewage treatment according to claim 2, characterized in that: The outer circumferential surface of the connecting ring (91) is provided with a pair of notches (911), and the notches (911) are engaged with one end of the lever arm (93).

4. The hyperbolic mixer for sewage treatment according to claim 1, characterized in that: The upper end of the sealing cover (8) is provided with a receiving opening (83), and the receiving opening (83) is engaged with the lower end of the pressing mechanism (9).

5. The hyperbolic mixer for sewage treatment according to claim 2, characterized in that: The upper end of the downward pressing linkage block (82) is provided with a positioning groove (821), and the positioning groove (821) matches the lower end of the pressing rod (92), and the lower end of the pressing rod (92) is in an arc shape.

6. The hyperbolic mixer for sewage treatment according to claim 1, characterized in that: The inner wall of the sealing groove (51) is provided with three annular grooves (511).

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