Defoaming device for sewage treatment

Abstract

The utility model relates to the field of sewage treatment, and provides a defoaming device for sewage treatment, which comprises a defoaming structure and a spraying structure which are both mounted in a tube well. The defoaming structure comprises a rotating motor, a first clamping seat, a second clamping seat, a rotating shaft and a plurality of crushing nets; the first clamping seat and the clamping seat are symmetrically mounted on the inner wall of the tube well; the rotating shaft is rotationally mounted on the first clamping seat and the second clamping seat at the same time and is horizontally arranged; the rotating motor is mounted on the first clamping seat; the rotating shaft is connected with the rotating motor; the plurality of crushing nets are uniformly mounted on the rotating shaft at intervals; the spraying structure sprays water to the crushing nets; through the arrangement of the defoaming structure and the spraying structure, the defoaming efficiency and the defoaming effect are improved, all bubbles are ensured to be defoamed, the bubbles are effectively prevented from overflowing, the normal operation of sewage treatment work is ensured, and meanwhile, the road environment is effectively protected.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to an antifoaming device for sewage treatment. Background Art

[0002] When the membrane tank is in operation, after the MBR membrane filaments produce water for a long time, organic matter blockage will form at the membrane pores. It is a common practice to soak and clean the membrane filaments with sodium hypochlorite solution to maintain the membrane flux of the membrane filaments.

[0003] After the membrane filament cleaning is completed, the water body contains cleaning liquid with impurities and medicine liquid, which needs to be discharged from the membrane tank operation system and returned to the inlet water to be filtered through a coarse grid, sedimentation, and membrane grid.

[0004] Since the cleaning liquid contains a large amount of sodium hypochlorite, when it is discharged to the factory sewage pipe network through the evacuation pump, under the head and pressure of the drainage pump, the cleaning liquid flows to the inlet water pump pit in the pipe network under the action of pressure; but when the evacuation pump stops, the pressure disappears, the water flow in the pipe network slows down, and the sodium hypochlorite in the water forms large bubbles with gas. The bubbles rise up in the sewage well, which will affect the sewage treatment process, pollute the environment at the same time, and interfere with the normal display of the instrument.

[0005] The negative impacts of foam on the sewage treatment process are as follows: Foam will prevent normal aeration and oxygenation, reduce the dissolved oxygen in the mixed liquid, and affect the sewage treatment effect; in addition, biological foam has viscosity and may enter the secondary sedimentation tank, resulting in an increase in pollutants such as SS and CODcr in the external drainage.

[0006] The pollution to the environment is as follows: After a large amount of biological foam is generated, the upward movement of the foam will drive the sewage to form a blowout situation. At this time, the impact force of the foam is very large, which can push open the manhole cover, overflow to the surrounding grassland and road, spread to the walkway board, and affect normal maintenance; biological foam may freeze in winter, making it difficult to clean; in summer, it will float with the wind and form a bad smell, seriously polluting the environment.

[0007] The interference with the normal display of the instrument: Foam will affect the normal display of the instrument. Especially in sewage treatment plants using DCS automatic control, it may cause misoperation of the system. For example, for an ultrasonic level gauge, it will cause a false liquid level, and in severe cases, it will cause the pump to run idly; if a flume flowmeter is used at the total discharge port of the sewage treatment station, it may cause an error in the sewage flow at the total discharge port. Content of the Utility Model

[0008] The utility model provides an anti-foaming device for sewage treatment, which improves the anti-foaming efficiency and effect by setting an anti-foaming structure and a spraying structure. Among them, the rotating motor in the anti-foaming structure drives the crushing net to rotate, which can cut the foam in the whole space, greatly improving the cutting efficiency. At the same time, it cooperates with the spraying structure to ensure that all the bubbles are defoamed, effectively preventing the foam from overflowing, ensuring the normal progress of the sewage treatment work, and effectively protecting the road environment.

[0009] The technical solution of the utility model is realized as follows:

[0010] An anti-foaming device for sewage treatment is installed in a pipe well;

[0011] It includes an anti-foaming structure and a spraying structure, and both the anti-foaming structure and the spraying structure are installed in the pipe well;

[0012] The anti-foaming structure includes a rotating motor, a first clamping seat, a second clamping seat, a rotating shaft and a plurality of crushing nets;

[0013] The first clamping seat and the clamping seat are symmetrically installed on the inner wall of the pipe well;

[0014] The rotating shaft is rotatably installed on the first clamping seat and the second clamping seat at the same time, and the rotating shaft is horizontally arranged;

[0015] The rotating motor is installed in the pipe well, and the rotating shaft is connected to the rotating motor;

[0016] A plurality of the crushing nets are installed on the rotating shaft at equal intervals;

[0017] The spraying structure sprays water towards the plurality of crushing nets.

[0018] Furthermore, the crushing net includes a plurality of first horizontal slices and a plurality of first vertical slices, and the plurality of first horizontal slices and the plurality of first vertical slices are arranged crosswise at equal intervals.

[0019] Furthermore, the rotating shaft is horizontally arranged, and the rotating shaft includes a cuboid rotating shaft and a cylindrical shaft. Cylindrical shafts are arranged at both ends of the cuboid rotating shaft, and the cuboid rotating shaft is rotatably installed on the first clamping seat and the second clamping seat through the cylindrical shafts;

[0020] The crushing net is installed on the cuboid rotating shaft;

[0021] Furthermore, the crushing net is an arc-shaped net.

[0022] Furthermore, the planar shape of the crushing net is adapted to the shape of the cross-section of the pipe well.

[0023] Furthermore, a clamping platform is arranged on the inner wall of the pipe well;

[0024] The first card seat and the second card seat are symmetrically installed on the card table.

[0025] Furthermore, the spraying structure includes a water pump, a spray pipe and a plurality of spray heads;

[0026] An installation hole is provided in the pipe well, and the water pump is arranged in the installation hole;

[0027] The spray pipe is communicated with the water pump;

[0028] A plurality of the spray heads are communicated with the spray pipe.

[0029] Furthermore, a plurality of the spray heads are provided;

[0030] A plurality of the spray heads are evenly arranged at intervals on the inner wall of the pipe well;

[0031] A plurality of the spray heads simultaneously spray water towards the crushing net.

[0032] Furthermore, when the crushing net is in the lowest position, it does not contact the water flow.

[0033] By providing a defoaming structure and a spraying structure, the present utility model improves the defoaming efficiency and effect; wherein the rotating motor in the defoaming structure drives the crushing net to rotate, which can cut the foam in the whole space, greatly improving the cutting efficiency; at the same time, it cooperates with the spraying structure to ensure that all the bubbles are defoamed, effectively preventing the foam from overflowing, ensuring the normal progress of the sewage treatment work, and effectively protecting the road environment. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a schematic diagram of the overall structure of an anti-foaming device for sewage treatment in a specific embodiment of the present utility model;

[0036] Figure 2 For Figure 1 A three-dimensional structure diagram of the rotating shaft and the crushing net of the defoaming structure of an anti-foaming device for sewage treatment shown;

[0037] Description of reference numerals: Defoaming structure 1; Rotating motor 11; First clamping seat 12; Second clamping seat 13; Rotating shaft 14; Cylindrical shaft 141; Crushing net 15; First transverse slice 151; First longitudinal slice 152; Spraying structure 2; Pipe well 3; Clamping platform 31; Installation hole 32. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0039] In the first specific embodiment of the present invention, see Figure 1 - Figure 2 , an antifoaming device for sewage treatment, installed in the pipe well 3;

[0040] It includes a defoaming structure 1 and a spraying structure 2. The defoaming structure 1 and the spraying structure 2 are both installed in the pipe well 3. The defoaming structure 1 is used to cut the foam, and the spraying structure 2 is used to break it up. The two structures cooperate to eliminate the bubbles and prevent the bubbles from overflowing to the ground;

[0041] Among them, the defoaming structure 1 includes a rotating motor 11, a first clamping seat 12, a second clamping seat 13, a rotating shaft 14 and a plurality of crushing nets 15;

[0042] The first clamping seat 12 and the clamping seat 13 are symmetrically installed on the inner wall of the pipe well 1 and fixed by bolts;

[0043] The rotating shaft is rotatably installed on the first clamping seat 12 and the second clamping seat 13 through bearings at the same time;

[0044] The rotating shaft is horizontally arranged, so as to drive the crushing net to rotate continuously in the vertical direction to cut the foam in the entire space, making the cutting more thorough and effectively improving the efficiency;

[0045] The rotating motor 11 is installed in the pipe well 1 through a motor seat. The motor seat is fixed in the pipe well by bolts. The rotating shaft 14 and the output shaft of the rotating motor 11 are connected by a coupling;

[0046] A plurality of the crushing nets 15 are evenly installed on the rotating shaft 14. Specifically, there are two crushing nets, and the two crushing nets are symmetrically welded on the rotating shaft to cut the foam alternately;

[0047] The spraying structure 2 sprays water towards the plurality of crushing nets 15 to eliminate the foam;

[0048] During operation, the rotating motor 11 drives the rotating shaft 14 to rotate, and the rotating shaft 14 drives a plurality of crushing meshes 15 to rotate, thereby cutting the foam. Since the rotating shaft 14 is horizontally arranged, the crushing meshes 15 rotate up and down, enabling more thorough crushing of the bubbles.

[0049] A plurality of crushing meshes are provided for continuous cutting. The crushing meshes can reach the bubbles at the entire depth, resulting in more thorough and efficient cutting.

[0050] In the first specific embodiment of the present utility model, see Figure 1 - Figure 2 , the crushing mesh 15 includes a plurality of first horizontal slices 151 and a plurality of first vertical slices 152, and the plurality of first horizontal slices 151 and the plurality of first vertical slices 152 are arranged at intervals and cross each other evenly;

[0051] The first horizontal slices 151 and the second horizontal slices 152 are welded together and finally welded to the rotating shaft 14;

[0052] The first horizontal slice has a certain width, such as 2 cm, and a small thickness, facilitating the cutting of the bubbles.

[0053] In the first specific embodiment of the present utility model, see Figure 1 - Figure 2 , the rotating shaft 14 includes a cuboid rotating shaft 141 and a cylindrical shaft 142. Cylindrical shafts 142 are provided at both ends of the cuboid rotating shaft 141, and the cuboid rotating shaft is rotationally installed on the first clamping seat 12 and the second clamping seat 13 through the cylindrical shaft 141;

[0054] When two crushing meshes 15 are provided, the two crushing meshes are respectively installed on two opposite side surfaces of the cuboid rotating shaft.

[0055] In the first specific embodiment of the present utility model, in the first specific embodiment of the present utility model, see Figure 1 - Figure 2 , the planar shape of the crushing mesh is adapted to the shape of the cross-section of the pipe well, facilitating the operation of the equipment and better performing the work.

[0056] In the first specific embodiment of the present utility model, see Figure 1 - Figure 2 , a clamping platform 31 is provided on the inner wall of the pipe well 1;

[0057] The first clamping seat 12 and the second clamping seat 13 are symmetrically installed on the clamping platform 31.

[0058] In the first specific embodiment of the present utility model, see Figure 1 - Figure 2 , the spraying structure 2 includes a water pump 21, a spraying pipe 22 and a plurality of spray heads 23;

[0059] An installation hole 32 is provided in the pipe well 3, and the water pump 21 is arranged in the installation hole 32;

[0060] The spray pipe 22 is communicated with the water pump 21;

[0061] A plurality of the spray heads 23 are communicated with the spray pipe 22.

[0062] In the first specific embodiment of the present invention, see Figure 1 - Figure 2 , a plurality of the spray heads 23 are provided;

[0063] A plurality of the spray heads 23 are arranged on the inner wall of the pipe well 3 at uniform intervals;

[0064] A plurality of the spray heads 23 spray water towards the crushing net 15 at the same time;

[0065] A plurality of the spray heads 23 spray at the same time, which can effectively expand the spray area, make the spraying in place, and at the same time can effectively improve the spraying effect. Cooperating with the crushing net 15, the foam can be completely eliminated.

[0066] In the first specific embodiment of the present invention, see Figure 1 - Figure 2 , when the crushing net 15 is in the lowest position, it does not contact the water flow, preventing the crushing net 15 from affecting the water flow and ensuring the normal progress of the work.

[0067] In the second specific embodiment of the present invention, the crushing net 15 is an arc-shaped net. After the crushing net is set as an arc-shaped net, when the arc-shaped net reaches the lowest position, it can press and cut the bubbles, effectively expanding the cutting area and further improving the cutting efficiency.

[0068] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An antifoaming device for sewage treatment, installed in a pipe well; It is characterized in that: It includes an antifoaming structure and a spraying structure, and both the antifoaming structure and the spraying structure are installed in the pipe well; The antifoaming structure includes a rotating motor, a first clamping seat, a second clamping seat, a rotating shaft and a plurality of crushing nets; The first clamping seat and the clamping seat are symmetrically installed on the inner wall of the pipe well; The rotating shaft is rotatably installed on the first clamping seat and the second clamping seat at the same time, and the rotating shaft is horizontally arranged; The rotating motor is installed in the pipe well, and the rotating shaft is connected to the rotating motor; A plurality of the crushing nets are installed on the rotating shaft at equal intervals; The spraying structure sprays water towards the plurality of crushing nets.

2. The defoaming device for sewage treatment according to claim 1, characterized in that: The crushing net includes a plurality of first horizontal slices and a plurality of first vertical slices, and the plurality of first horizontal slices and the plurality of first vertical slices are arranged crosswise at equal intervals.

3. The defoaming device for sewage treatment according to claim 1, wherein: The rotating shaft is horizontally arranged. The rotating shaft includes a cuboid rotating shaft and a cylindrical shaft. Cylindrical shafts are arranged at both ends of the cuboid rotating shaft, and the cuboid rotating shaft is rotatably installed on the first clamping seat and the second clamping seat through the cylindrical shafts; The crushing net is installed on the cuboid rotating shaft.

4. An anti-foaming device for sewage treatment according to claim 1, characterized in that: The crushing net is an arc-shaped net.

5. An antifoaming device for sewage treatment according to claim 1, characterized in that: The planar shape of the crushing net is adapted to the shape of the cross-section of the pipe well.

6. The defoaming device for sewage treatment according to claim 1, characterized in that: A clamping platform is provided on the inner wall of the pipe well; The first clamping seat and the second clamping seat are symmetrically installed on the clamping platform.

7. An antifoaming device for sewage treatment according to claim 1, wherein: The spraying structure includes a water pump, a spraying pipe and a plurality of spray heads; An installation hole is provided in the pipe well, and the water pump is arranged in the installation hole; The spraying pipe is communicated with the water pump; A plurality of the spray heads are communicated with the spraying pipe.

8. The defoaming device for sewage treatment according to claim 7, characterized in that: A plurality of the spray heads are provided; A plurality of the spray heads are arranged on the inner wall of the pipe well at equal intervals; A plurality of the spray heads spray water towards the crushing net at the same time.

9. The defoaming device for sewage treatment according to claim 1, wherein: When the crushing net is in the lowest position, it does not contact the water flow.

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