Floating type aeration stirring device

Abstract

The utility model relates to a floating type aeration stirring device which comprises a floating platform, an air supply main pipe, an air quantity distributor, a propeller, air supply branch pipes, aerators and a bearing part, wherein the floating platform can float on the liquid level of sewage; the air quantity distributor is fixed in the center of the floating platform, and a sleeve is arranged at the top of the air quantity distributor; the air supply main pipe penetrates through the sleeve and is connected with the air quantity distributor to supply air to the air quantity distributor; the propellers are mounted at the bottom of the floating platform and can drive the floating platform to move in any direction on the sewage liquid level; the aerators are connected to the air quantity distributor through air supply branch pipes; and the bearing part is connected between the air quantity distributor and the aerator. According to the utility model, hydrogen sulfide gas sealed and pressed in mud pressure can be released into air, and is dispersed under the assistance of natural ventilation or mechanical forced ventilation, so that an operator can conveniently enter the pool for maintenance and further clean sewage, wastewater and sludge in the pool, and the safety of the operator is guaranteed.

Description

[Technical field]

[0001] The utility model relates to sewage and sludge treatment equipment, in particular to a floating aeration stirring device, which is used for sewage and wastewater construction and equipment pool cleaning, and belongs to the technical field of environmental protection equipment. [Background technology]

[0002] During the process of sewage and sludge flowing through structures or treatment equipment such as stabilization tanks, regulating tanks, anaerobic tanks, hydrolysis acidification tanks, sludge concentration tanks, and sedimentation tanks, due to factors such as insufficient or no stirring, organic particles, flocs, and microorganisms in the sewage and wastewater will settle to the bottom of the pool, corners, and other areas. As time goes by, an accumulation area of ​​tens of centimeters or even meters high will often form, that is, an accumulated sludge layer. The accumulated sludge layer lacks oxygen supply and is basically in anoxic and anaerobic state. The anaerobic and facultative anaerobic microorganisms growing and breeding in the accumulated sludge layer will decompose some of the organic matter in the mud layer into methane, hydrogen sulfide, and other substances. Some of the products will float above the sewage level in the form of bubbles, and some will be sealed and compressed in the mud layer in the form of gas.

[0003] When the mud layer in the bottom accumulation area of ​​the sewage structure is too thick or the treatment equipment and facilities in the pool need to be repaired, the sewage treatment plant or enterprise sewage treatment station must first clean up the sewage and thick mud layer in the structure or equipment. The conventional pool cleaning method is generally to hoist in submersible sewage pumps, mud pumps and other equipment and facilities or use the mud pump installed in the pool to pump out the sewage and mud in the sewage structure and the mud layer in the accumulation area. The sewage is often discharged out of the pool first due to its good fluidity; part of the sludge in the accumulation layer is discharged out of the pool with the sewage, and part of it needs to be flushed and diluted with water before it can flow to the pumping area and then be discharged out of the pool. However, the time for flushing and dilution with water is slow and the effect is not very ideal. There are always some areas where the sludge layer is still accumulated and difficult to be cleaned out of the pool. Even if the flushing is more thorough, it is extremely difficult to clean up all the sludge in the pool by mechanical equipment. Under such circumstances, when the pool cleaning personnel enter the bottom of the pool to clean the pool or perform maintenance work, if they accidentally step on the mud layer that contains hydrogen sulfide gas, the hydrogen sulfide gas released instantly from the mud layer may cause fatal poisoning and suffocation to the operators. Although the operators can be required to wear isolation respirators to enter the pool for work, isolation respirators are often inconvenient to use and affect work efficiency. Operators tend to take risks to enter the pool under the influence of fluke mentality, which easily leads to production safety accidents.

[0004] Therefore, in order to solve the above technical problems, it is necessary to provide an innovative floating aeration and stirring device to overcome the above defects in the prior art. [Contents of the utility model]

[0005] The utility model aims to provide a floating aeration stirring device which has a simple structure, is easy to use and can release hydrogen sulfide gas sealed in sludge.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a floating aeration and stirring device, which includes a floating platform, an air supply main pipe, an air volume distributor, a propeller, an air supply branch pipe, an aerator and a load-bearing member; wherein the floating platform can float on the sewage liquid surface; the air volume distributor is fixed to the center of the floating platform, and a sleeve is provided on the top of the floating platform; the air supply main pipe passes through the sleeve and is connected to the air volume distributor to supply air to the air volume distributor; a plurality of propellers are provided, which are installed at the bottom of the floating platform and can drive the floating platform to move in any direction on the sewage liquid surface; the aerator is connected to the air volume distributor through the air supply branch pipe; the load-bearing member is connected between the air volume distributor and the aerator.

[0007] The floating aeration and stirring device of the utility model is further configured as follows: the air supply branch pipe is specifically a bendable hose.

[0008] The floating aeration and stirring device of the utility model is further configured as follows: the air supply branch pipe is specifically a fixed hard pipe.

[0009] The mobile aeration and stirring device of the utility model is further configured as follows: the aerator is specifically a quartz sand aeration tube or a perforated stainless steel tube or a titanium alloy aerator.

[0010] The floating aeration and stirring device of the utility model is further configured as follows: the floating platform is a floating platform made of engineering grade plastic or foam material or thickened butyl rubber automobile tire inner tube.

[0011] The floating aeration and stirring device of the utility model is further configured as follows: a suspension rope for lifting the aeration and stirring device is connected to the floating platform.

[0012] The floating aeration stirring device of the utility model is further configured as follows: a plurality of air supply branch pipe joints are arranged at the bottom of the air volume distributor, each of which is provided with a valve; and the air supply branch pipes are connected to the air supply branch pipe joints.

[0013] The floating aeration and stirring device of the utility model is further configured as follows: the air volume distributor is hollow inside, and the cross-sectional area of ​​the hollow is 2 to 3 times the cross-sectional area of ​​the air supply main pipe.

[0014] The floating aeration and stirring device of the utility model is further configured as follows: the load-bearing member is specifically an iron chain or a steel wire rope, which connects the air supply branch pipe joint of the air volume distributor and the aerator.

[0015] The floating aeration and stirring device of the utility model is also configured as follows: the propeller is specifically a propeller propeller, 4 of which are provided and fixed at equal intervals around the floating platform.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the floating aeration stirring device of the utility model has a simple structure and is easy to use. It can release the hydrogen sulfide gas trapped in the mud into the air by stirring the sludge, and can be dispersed by natural ventilation or mechanical forced ventilation, so that operators can enter the pool for maintenance and further clean the wastewater and sludge in the pool, thereby ensuring the safety of the operators.

Brief Description of the Drawings

[0017] Figure 1 It is a stereoscopic diagram of the first embodiment of the floating aeration and stirring device of the utility model.

[0018] Figure 2 yes Figure 1 Another perspective of the stereogram.

[0019] Figure 3 yes Figure 1 Schematic diagram of usage.

[0020] Figure 4 It is a stereoscopic diagram of the second embodiment of the floating aeration and stirring device of the utility model.

[0021] Figure 5 yes Figure 3 Another perspective of the stereogram. [Specific implementation method]

[0022] Please refer to the instruction manual Figure 1 To Attachment Figure 3 As shown, it is a first embodiment of a floating aeration and stirring device of the utility model, which is composed of a floating platform 1, an air supply main pipe 7, an air volume distributor 2, a propeller 3, an aerator 4, an air supply branch pipe 5 and a load-bearing member 6.

[0023] The floating platform 1 can float on the sewage surface 10. Figure 3 The floating platform 1 is made of engineering grade plastic or foam material or thickened butyl rubber automobile tire inner tube.

[0024] The floating platform 1 is connected with a lifting rope 11 for lifting the aeration and stirring device. The lifting rope 11 is hooked by means of a crane or other facilities on the sewage tank, so that the device can be lifted in or out.

[0025] The air volume distributor 2 is fixed at the center of the floating platform 1, and a sleeve 21 is provided on the top thereof. The air supply main pipe 7 passes through the sleeve 21, is connected to the air volume distributor 2, and supplies air to the air volume distributor 2. The sleeve 21 is made of stainless steel, which facilitates the installation and fixation of the air supply branch pipe 5. One end of the air supply main pipe 7 is connected to a fan or an air pump to input oxygen or air.

[0026] The bottom of the air volume distributor 2 is provided with a plurality of air supply branch pipe joints 22, and each air supply branch pipe joint 22 can be connected to an air supply branch pipe 5, so that the aeration and stirring device can be equipped with multiple aerators 4. Each air supply branch pipe joint 22 is provided with a valve 23, so that each air supply branch pipe joint 22 can be independently controlled. When air supply is required, the valve 23 is opened. In this embodiment, the air supply main pipe 7 sends the gas generated by the fan or air pump into the air volume distributor 2, and then controls the opening and closing of each valve 23, and the gas is sent to the corresponding air supply branch pipe 5 through the air volume distributor 2. In this scheme, the air volume distributor 2 is hollow inside. In order to ensure uniform and accurate air supply, the cross-sectional area of ​​the air volume distributor 2 is appropriately controlled to be 2 to 3 times the cross-sectional area of ​​the air supply main pipe 7. Taking the air supply main pipe 7 with a diameter of 50 mm as an example, the corresponding cross-sectional area of ​​the air volume distributor 2 should be 80 to 100 mm. In this way, the aeration effect can be guaranteed when the air supply branch pipe 5 is opened.

[0027] There are several propellers 3 installed at the bottom of the floating platform 1, and can drive the floating platform 1 to move in any direction on the sewage surface 10, so that the aeration stirring device can reach any position. In this embodiment, the propeller 3 is specifically a propeller propeller, and there are 4 propellers, which are fixed at equal intervals around the floating platform 1. Of course, the propeller 3 can also adopt other existing propellers.

[0028] Furthermore, the aerator 4 is connected to the air volume distributor 2 via an air supply branch pipe 5. The air supply branch pipe 5 passes the air in the air volume distributor 2 to the aerator 4, and the aerator 4 aerates and stirs the sludge 12, thereby releasing the hydrogen sulfide gas trapped in the sludge into the air above the sewage liquid level 10. The aerator 4 is specifically a quartz sand aeration tube or a perforated stainless steel tube or a titanium alloy aerator.

[0029] In this embodiment, the air supply branch pipe 5 is specifically a bendable hose, so that the aerator 4 at the bottom of the hose can touch the bottom and run, and the aerator 4 can be dragged along the bottom to achieve the desired effect. Figure 3 The aerator 4 is specifically a perforated iron pipe.

[0030] The load-bearing member 6 is connected between the air volume distributor 2 and the aerator 4 , and is specifically an iron chain, which ensures that the aerator 4 sinks into the sludge and prevents the aerator 4 from falling off the air supply branch pipe 5 .

[0031] Please refer to the instruction manual Figure 4 To Attachment Figure 5 As shown, it is a second embodiment of a mobile aeration and stirring device of the utility model, which is different from the first embodiment in that the air supply branch pipe 5' is a fixed hard pipe. The other structural features of this embodiment are the same as those of the first embodiment, so they are not repeated here.

[0032] The design principle of the floating aeration and stirring device of the utility model is as follows: taking a sewage structure about 10 meters deep as an example, in the process of discharging sewage with a submersible sewage pump, a mud pump or a mud pump installed in the pool, there is basically no problem in discharging the sewage in the upper part of the pool through the pump. When the sewage level in the pool is reduced to about 4 meters, the floating aeration and stirring device of the utility model is hoisted into the pool, and the aerator 4 installed at the bottom thereof sinks into the bottom area of ​​the sewage pool. When the fan is started and air is introduced through the air supply main pipe 7 and the air supply branch pipe 5, the wind from the aerator 4 is filled into the sludge 12 in the accumulation area in the form of bubbles, and a large number of bubbles stir up the mud layer in the accumulation area, which is consistent with the operating principle of the aeration tank. The sewage and the sludge are fully mixed, and the hydrogen sulfide gas originally sealed in the sludge 12 can no longer be sealed, and it floats to above the sewage liquid level 10 in the form of bubbles. The swimming aeration and stirring device of the utility model can swim to all areas in the pool under the operation of the operator, fill the sludge layer accumulated in the pool with air and stir it into place, release the hydrogen sulfide gas formed for a long time and sealed in the mud pressure into the air, and can clean up the hydrogen sulfide gas sealed in the sludge in the clean pool.

[0033] In summary, even if the sludge accumulated in the sewage structure is not removed thoroughly, as long as the floating aeration stirring device of the utility model is used, the hydrogen sulfide gas can be completely discharged through air stirring. After most of the sludge in the structure is removed, when the operators enter the pool for maintenance and further cleaning of the sewage and sludge in the pool, the fatal influence of hydrogen sulfide gas is basically eliminated.

[0034] The above specific implementation methods are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A floating aeration stirring device, characterized in that: It includes a floating platform, an air supply main pipe, an air volume distributor, a propeller, an air supply branch pipe, an aerator and a load-bearing member; wherein the floating platform can float on the sewage liquid surface; the air volume distributor is fixed at the center of the floating platform, and a sleeve is provided on the top of the floating platform; the air supply main pipe passes through the sleeve and is connected to the air volume distributor to supply air to the air volume distributor; there are a number of propellers, which are installed at the bottom of the floating platform and can drive the floating platform to move in any direction on the sewage liquid surface; the aerator is connected to the air volume distributor through the air supply branch pipe; the load-bearing member is connected between the air volume distributor and the aerator.

2. The floating aeration stirring device according to claim 1, characterized in that: The air supply branch pipe is specifically a bendable hose.

3. The floating aeration stirring device according to claim 1, characterized in that: The air supply branch pipe is specifically a fixed hard pipe.

4. The floating aeration and stirring device according to claim 2 or 3, characterized in that: The aerator is specifically a quartz sand aeration tube or a perforated stainless steel tube or a titanium alloy aerator.

5. The floating aeration and stirring device according to claim 1, characterized in that: The floating platform is a floating platform made of engineering grade plastic or foam material or thickened butyl rubber automobile tire inner tube.

6. The floating aeration stirring device according to claim 1, characterized in that: The floating platform is connected with a lifting rope for lifting the aeration and stirring device.

7. The floating aeration and stirring device according to claim 1, characterized in that: A plurality of air supply branch pipe joints are arranged at the bottom of the air volume distributor, each of which is provided with a valve; and the air supply branch pipes are connected to the air supply branch pipe joints.

8. The floating aeration and stirring device according to claim 7, characterized in that: The air volume distributor is hollow inside, and the cross-sectional area of ​​the hollow is 2 to 3 times the cross-sectional area of ​​the air supply main pipe.

9. The floating aeration and stirring device according to claim 7, characterized in that: The load-bearing member is specifically an iron chain or a steel wire rope, which connects the air supply branch pipe joint of the air volume distributor and the aerator.

10. The floating aeration and stirring device according to claim 1, characterized in that: The thrusters are specifically propeller thrusters, four of which are provided and fixed around the floating platform at equal intervals.

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