Liftable aeration device for closed aeration tank

Abstract

The utility model discloses a liftable aeration device for a closed aeration tank, and relates to the technical field of sewage treatment. The utility model discloses a liftable aeration device for a closed aeration tank, which comprises a liftable aeration module frame, a lifting device and a vertical guide rail arranged in the closed aeration tank, and the lifting device drives the liftable aeration module frame to move up and down along the vertical guide rail. The liftable aeration device can be lifted to the water surface without cooperation of a crane, the electromagnetic driving device drives the ground rail trolley to move on the horizontal guide rail, the aeration device is horizontally moved to the access hole for daily maintenance and repair, the maintenance space is not limited, the aeration device can be repaired without drainage, the maintenance cost is reduced, and the maintenance efficiency is improved. The operation stability and continuity of the aeration system are improved, and water-supply-free operation and water-supply-free maintenance in the whole life cycle of aeration can be realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sewage treatment technical field more specifically, relate to a kind of lifting aeration device for closed aeration tank. BACKGROUND

[0002] At present, aerator is widely used in sewage treatment industry as a kind of oxygen supply equipment. The main role of aeration in the field of sewage treatment is: rapid stirring and oxygenation, oxygen in air is transferred to sewage by air blower, to provide oxygen for microorganism respiration in sewage, and to make organic pollutants, activated sludge and dissolved oxygen in sewage fully contact and mix intensively. The installation mode of aerator includes bottom fixed type, suspension chain type, simple lifting type and whole lifting type. The bottom fixed type aeration is most widely used, and has good aeration effect, but is inconvenient for maintenance. Since the bottom fixed type aeration needs to fix aerator under water, it is necessary to drain the pool water for maintenance, and the approval process is long, production activities need to be adjusted, and there are many preparations. Many sewage treatment plants choose lifting type aeration due to the difficulty in stopping water for maintenance.

[0003] There are three kinds of lifting type aeration, suspension chain type is bound with Boleke process. With the increase of ammonia nitrogen and total nitrogen in effluent, Boleke process is gradually eliminated. Simple lifting type can be used for installation without draining water or replacement without draining water, and the aerator has small arrangement density. Whole lifting type can maintain the same aeration density as bottom aeration, and has strong practicability. It needs to be installed by draining water, and needs to be used with crane during lifting. The pool opening of ordinary aeration tank is an open pool, and both simple lifting type and whole lifting type used with crane can be designed and used. For some aeration tanks with cover and aeration tanks with odor collection cover, the height above liquid surface is only 1-2 meters due to the cover treatment on the top of the tank. There are many limitations in the selection of installation mode of aerator. The air vertical pipe of simple lifting type is usually stainless steel pipe, and at least 6 meters of pool top space is needed for maintenance and installation. If the vertical pipe of whole lifting type is stainless steel pipe, at least 6 meters of pool top space is also needed, and crane needs to be used, which needs more pool top space. If winch is used to lift the whole lifting type, at least 2 meters of space above the pool top is needed. The top of most tanks with odor collection cover is arc structure, and the space of 2 meters above the walkway plate cannot meet the requirement, and only the space of 2 meters above the liquid surface can meet the requirement. Under this background, the installation mode of aerator can only be bottom fixed type. SUMMARY

[0004] In view of the above problems existing in the prior art, the technical problem to be solved by the utility model is to provide a lifting aeration device for closed aeration tank.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model provides an elevatable aeration device for closed aeration tank, comprising: elevatable aeration module frame, lifting device and vertical guide rail arranged in the closed aeration tank, the lifting device drives elevatable aeration module frame to move up and down along the vertical guide rail.

[0007] The lifting device is arranged on the top of the closed aeration tank.

[0008] A guide ring is fixedly arranged on the elevatable aeration module frame, and the guide ring is movably sleeved on the vertical guide rail.

[0009] A horizontal guide rail is arranged between the liquid surface and the top cover of the closed aeration tank.

[0010] A ground rail trolley is arranged on the horizontal guide rail, and the ground rail trolley moves on the horizontal guide rail.

[0011] After the elevatable aeration module frame is lifted above the liquid surface of the aeration tank, the elevatable aeration module frame is disconnected from the vertical guide rail and connected to the ground rail trolley.

[0012] The elevatable aeration module frame is connected to the ground rail trolleys arranged on both sides through full-automatic trolley hooks.

[0013] An electromagnetic driving device drives the ground rail trolley to move on the horizontal guide rail, so that the aeration device is translated to the maintenance opening for daily maintenance and repair.

[0014] The lifting device is a winding type lifting device.

[0015] The lifting device winds or unwinds the lifting steel wire rope on the winding drum of the lifting machine, so as to drive the elevatable aeration module frame to ascend or descend on the vertical guide rail.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1) The utility model does not need to cooperate with a crane to lift the elevatable aeration device to the water surface and translate to the fixed maintenance opening, is not limited by the 0.7-1.5 meter maintenance space above the liquid surface of the closed tank, is convenient for maintenance personnel to maintain and replace the aerator, can be maintained without draining water, reduces the maintenance cost, improves the operation stability and continuity of the aeration system, and can realize non-stop water operation and non-stop water maintenance in the whole life cycle of aeration.

[0018] 2) The utility model discloses a lifting aeration device both sides symmetry is provided with the lifting aeration module frame, and the guide ring on the two sides lifting aeration module frame is respectively sleeved on the two sides vertical guide rail, and the outermost layer of guide ring is rubber damping mechanism, and the vibration is absorbed and attenuated through the elastic deformation of rubber, and the vibration energy is converted into elastic potential energy through the elastic deformation of spring, thereby reducing the vibration amplitude, guaranteeing that the lifting aeration device stably drops, and the horizontal position will not move. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the plan view of lifting aeration device;

[0020] Figure 2 It is the partial side view of lifting aeration device;

[0021] Figure 3 It is the complete side view of lifting aeration device;

[0022] Figure 4 It is the partial enlarged view of guide ring;

[0023] Figure 5 It is the connection schematic diagram of ground rail trolley and lifting aeration module frame;

[0024] Figure 6 It is the lifting schematic diagram of the utility model's lifting aeration module frame Figure 1 ;

[0025] Figure 7 It is the lifting schematic diagram of the utility model's lifting aeration module frame Figure 2 ;

[0026] Wherein, 1, lifting aeration module frame;11, guide ring;2, air main pipe;3, lifting device;31, lifting steel wire rope;32, traction steel wire rope;4, ground rail trolley;5, vertical guide rail;6, horizontal guide rail;7, closed aeration tank;A, B are two sides access hole respectively;C, pool top ground. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further described below in combination with specific embodiment. If there is no detailed description in the following embodiment, the technical means used are conventional means familiar to those skilled in the art.

[0028] Example 1

[0029] The application discloses a lifting aeration device for a closed aeration tank, which comprises the following parts: 1, a lifting aeration block frame; 11, a guide ring; 2, an air main pipe; 3, a lifting device; 31, a lifting steel wire rope; 32, a traction steel wire rope; 4, a ground rail trolley; 5, a vertical guide rail; 6, a horizontal guide rail; 7, a closed aeration tank; A and B are two maintenance openings respectively; and C is a pool top ground.

[0030] The lifting aeration block frame 1 is fixedly installed with the guide ring 11, the lifting aeration block frame 1 is sleeved on the vertical guide rail 5 through the guide ring 11, and the lifting aeration block frame 1 moves up and down on the vertical guide rail 5. The vertical guide rail 5 is located in the closed aeration tank 7 and is fixed symmetrically on two sides of the bottom of the tank.

[0031] The lifting aeration block frame 1 is a square tube and is made of stainless steel. One fixing mode is that the four corners of the lifting aeration block frame 1 are fixed to the lifting steel wire rope 31 through the traction steel wire rope 32. Figure 5 Another fixing mode is that the two corners on one side of the lifting aeration block frame 1 are fixed to the lifting steel wire rope 31 through the traction steel wire rope 32. Figure 6 .

[0032] The lifting device 3 is a winding type lifting equipment, one end of the lifting steel wire rope 31 is fixed and wound on a lifting machine drum of the lifting device 3, and the other end is hung with the lifting aeration block frame 1. The lifting device 3 is installed on one side (Fig. 2) Figure 5 ) or both sides (Fig. 3) Figure 6 ) of the top of the closed aeration tank. The lifting aeration block frame 1 is lifted or lowered by winding or unwinding the lifting steel wire rope 31 on the lifting machine drum. At this time, the guide ring 11 plays a limiting role on the lifting aeration block frame 1, and prevents the lifting aeration block frame 1 from moving horizontally during lifting through the guide ring 11.

[0033] The double-layer damping mechanism is arranged in the guide ring 11, the outermost layer is a rubber damping mechanism 111, and the vibration is absorbed and attenuated through the elastic deformation of the rubber; the inner layer is a spring damper 112, and the vibration energy is converted into elastic potential energy through the elastic deformation of the spring, so that the vibration amplitude is reduced.

[0034] The horizontal guide rail 6 is located above the liquid surface of the closed aeration tank 7 and is 0.5 m away from the top cover. The ground rail trolley 4 is installed with a guide wheel matched with the horizontal guide rail 6 and moves left and right on the horizontal guide rail 6. The horizontal guide rail 6 and the ground rail trolley 4 are connected through electromagnetic adsorption, so that the ground rail trolley 4 can stably and smoothly travel on the horizontal guide rail 6. After the lifting aeration block frame 1 is exposed to the liquid surface, the guide ring 11 is disconnected from the vertical guide rail 5, the ground rail trolley 4 is connected through the full-automatic trolley hook, is translated to the maintenance opening and is maintained and repaired daily. The lifting aeration block frame 1 is connected with the ground rail trolley 4.

[0035] Air main pipe 2 is connected by flange, and is directly detached at 20-30 cm below the top of the pool during lifting, and is moved on the translational slide rail without obstruction.

[0036] Example 2

[0037] The utility model discloses a kind of aeration working processes of closed aeration tank's liftable aeration device ((( Figure 5 )), specific steps are as follows:

[0038] Liftable aeration block frame 1 is provided with lifting device 3 installed on the top of closed aeration tank on one side, and vertical guide rail 5 is arranged at the corresponding position of the bottom of closed aeration tank;Guide ring 11 on the two sides of liftable aeration block frame 1 is respectively sleeved on the two sides of vertical guide rail 5, and the outermost rubber damping mechanism 111 of guide ring 11 absorbs and attenuates vibration through the elastic deformation of rubber, and the next layer is spring shock absorber 112, which converts vibration energy into elastic potential energy through the elastic deformation of spring, thereby reducing vibration amplitude, ensuring that liftable aeration device is stably lowered, and horizontal position is not moved;Four corners of liftable aeration block frame 1 are fixed on lifting steel wire rope 31 through traction steel wire rope 32, and lifting device 3 arranged on one side of the top is synchronously controlled lifting machine drum to lengthen lifting steel wire rope;With the lengthening of lifting steel wire rope 31, aeration device is slowly lowered to the bottom of closed aeration tank.

[0039] Another aeration working process of closed aeration tank's liftable aeration device ((( Figure 6 )) is disclosed, and the specific steps are as follows:

[0040] Liftable aeration device is symmetrically provided with liftable aeration block frame 1 and lifting device 3 installed on the top of closed aeration tank on the two sides, and vertical guide rail 5 is arranged at the corresponding position of the bottom of closed aeration tank;Guide ring 11 on the two sides of liftable aeration block frame 1 is respectively sleeved on the two sides of vertical guide rail 5, and the outermost rubber damping mechanism 111 of guide ring 11 absorbs and attenuates vibration through the elastic deformation of rubber, and the next layer is spring shock absorber 112, which converts vibration energy into elastic potential energy through the elastic deformation of spring, thereby reducing vibration amplitude, ensuring that liftable aeration device is stably lowered, and horizontal position is not moved; The two corners on one side of liftable aeration block frame 1 are fixed on lifting steel wire rope 31 through traction steel wire rope 32, and lifting device 3 arranged symmetrically on the two sides is synchronously controlled lifting machine drum to lengthen lifting steel wire rope 31;With the lengthening of lifting steel wire rope 31, aeration device is slowly lowered to the bottom of closed aeration tank.

[0041] Example 3

[0042] A kind of closed aeration tank's liftable aeration device maintenance method, and the specific steps are as follows:

[0043] The lifting device 3 symmetrically arranged on both sides of the lifting aeration module frame 1 is symmetrically or unilaterally installed on the top of the closed aeration tank, and the corresponding position of the bottom of the closed aeration tank is provided with a vertical guide rail 5; the guide ring 11 on the lifting aeration module frame 1 on both sides is respectively sleeved on the vertical guide rail 5 on both sides, the outermost rubber damping mechanism 111 of the guide ring 11 absorbs and attenuates vibration through the elastic deformation of rubber, and the spring shock absorber 112 in the inner layer converts vibration energy into elastic potential energy through the elastic deformation of the spring, so that the vibration amplitude is reduced, the lifting aeration device is stably lowered, and horizontal position movement is avoided; the four corners of the lifting aeration module frame 1 are fixed on the lifting steel wire rope 31 through the traction steel wire rope 32, and the lifting device 3 unilaterally arranged on the top synchronously controls the lifting machine drum to wind the lifting steel wire rope 31 (or the two corners of the lifting aeration module frame 1 on one side are respectively fixed on the lifting steel wire rope 31 through the traction steel wire rope 32, and the lifting device 3 symmetrically arranged on both sides synchronously controls the lifting machine drum to lengthen the lifting steel wire rope 31); with the winding of the lifting steel wire rope 31, the aeration device is slowly lifted above the liquid surface of the closed aeration tank, at this time the guide ring 11 is separated from the vertical guide rail 5; then the lifting aeration module frame 1 on both sides is respectively connected with the ground rail trolley 4 arranged on both sides through the full-automatic trolley hook, and the electromagnetic drive device drives the ground rail trolley 4 to move on the horizontal guide rail 6, so that the aeration device is translated to the maintenance opening (A and B are both maintenance openings) for daily maintenance and repair. The whole process is not limited by the space of only 0.7-1.5 meters above the liquid surface of the closed tank, and the maintenance can be carried out without draining, thereby reducing the maintenance cost, improving the operation stability and continuity of the aeration system, achieving non-water-stopping operation and non-water-stopping maintenance in the whole life cycle of aeration, and facilitating maintenance personnel to maintain and replace aerators.

[0044] The above description is only illustrative but not restrictive for the utility model, and those skilled in the art can make many modifications, changes or equivalents without departing from the spirit and scope defined by the appended claims.

Claims

1. A liftable aeration device for a closed aeration tank, characterized in that The application relates to a lifting aeration module frame (1), a lifting device (3) and vertical guide rails (5) arranged in a closed aeration tank, wherein the lifting device (3) drives the lifting aeration module frame (1) to move up and down along the vertical guide rails (5), a horizontal guide rail (6) is arranged between the liquid surface of the closed aeration tank and a top cover, a ground rail trolley (4) is arranged on the horizontal guide rail (6), and the ground rail trolley (4) moves on the horizontal guide rail (6). The lifting device (3) is arranged at the top of the closed aeration tank.

2. The liftable aeration device of claim 1, wherein, A guide ring (11) is fixedly arranged on the lifting aeration module frame (1), and the guide ring (11) is movably sleeved on the vertical guide rail (5).

3. The liftable aeration device of claim 1, wherein, After the lifting aeration module frame (1) is lifted to above the liquid surface of the aeration tank, the lifting aeration module frame (1) is disconnected from the vertical guide rail (5) and connected to the ground rail trolley (4).

4. The lift-aerated device of claim 1, wherein, The lifting aeration module frame (1) is connected to the ground rail trolleys (4) arranged on two sides through full-automatic trolley hooks.

5. The liftable aeration device of claim 4, wherein, An electromagnetic driving device drives the ground rail trolley (4) to move on the horizontal guide rail (6), and the aeration device is translated to a maintenance opening for daily maintenance and repair.

6. The lift-aerated device of claim 1, wherein, The lifting device (3) is a winding type lifting device.

7. The liftable aeration device of claim 1, wherein, The lifting device (3) winds or unwinds the lifting steel wire rope (31) on the lifting machine drum, so as to drive the lifting aeration module frame (1) to ascend or descend on the vertical guide rail (5).

8. The liftable aeration device of claim 7, wherein, ​

Images