Sludge oxidation tank with high decomposition efficiency

Abstract

The utility model provides a sludge oxidation tank with high decomposition efficiency. The sludge oxidation tank comprises a tank body and an aeration assembly, the aeration assembly comprises a built-in ring, an aeration structure and an air inlet pipe; the built-in ring is internally provided with a gas cavity, the plurality of aeration structures are arranged along the circumferential direction of the built-in ring, each aeration structure comprises a plurality of aeration hoses, the aeration hoses are arranged along the radial direction of the built-in ring, and the aeration hoses are communicated with the gas cavity. The air inlet pipe is fixed on the lower side of the built-in ring; the built-in ring is fixed in the tank body, and the built-in ring and the tank body are coaxially arranged. According to the sludge oxidation tank provided by the invention, the mass transfer efficiency of oxygen in sludge can be improved, the aeration effect is improved, and the sludge curing rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge oxidation tanks, in particular to a sludge oxidation tank with high decomposition efficiency. Background Technique

[0002] Sludge is rich in harmful substances such as organic matter and heavy metals. If not properly treated, it will not only cause serious environmental pollution but also waste a large amount of resources. Therefore, the efficient and harmless treatment of sludge has become an urgent problem to be solved in the current environmental protection field.

[0003] At present, there are various methods for sludge treatment. Among them, oxidation treatment has attracted much attention because it can effectively decompose the organic matter in sludge and kill pathogens. In the process of sludge oxidation treatment, as a key device, the performance of the oxidation tank directly affects the treatment effect of sludge.

[0004] The existing sludge oxidation tanks have problems such as poor aeration effect and low mass transfer efficiency of oxygen in sludge, which limits the rate of oxidation reaction. Therefore, there is an urgent need for a sludge oxidation tank to solve the above problems. Content of the Utility Model

[0005] Based on the above situation, the main purpose of the utility model is to provide a sludge oxidation tank with high decomposition efficiency to solve the problems of poor aeration effect, low mass transfer efficiency of oxygen in sludge, and limited oxidation reaction rate in the existing sludge oxidation tanks.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] A sludge oxidation tank with high decomposition efficiency includes a tank body and an aeration assembly;

[0008] The aeration assembly includes an inner ring, an aeration structure, and an air inlet pipe;

[0009] A gas chamber is arranged inside the inner ring. There are multiple aeration structures, and the multiple aeration structures are arranged along the circumferential direction of the inner ring. The aeration structure includes multiple aeration hoses, the aeration hoses are arranged along the radial direction of the inner ring, the aeration hoses are communicated with the gas chamber, and the air inlet pipe is fixed to the lower side of the inner ring;

[0010] The inner ring is fixed inside the tank body, and the inner ring is coaxially arranged with the tank body.

[0011] Preferably, it further includes a stirring assembly;

[0012] The stirring assembly includes a rotating shaft, stirring blades, and a motor. The motor is fixed to the lower end of the tank body, the rotating shaft is rotatably connected inside the tank body, the output shaft of the motor extends into the tank body and is fixedly connected to the rotating shaft, and the stirring blades are fixedly connected to the rotating shaft.

[0013] Preferably, the stirring blades are fan-shaped blades.

[0014] Preferably, a mounting ring is fixed at the lower end inside the tank body. The mounting ring is coaxially arranged with the tank body. The built-in ring is arranged outside the mounting ring. The outer circumference of the built-in ring abuts against the inner circumference of the tank body, and the inner circumference of the built-in ring abuts against the outer circumference of the mounting ring.

[0015] Preferably, the inner circumference of the mounting ring is provided with an inclined surface.

[0016] Preferably, a feed pipe is fixed at the upper end of the tank body, and a discharge pipe is fixed at the lower end of the tank body. The discharge pipe is located at the inner ring position of the tank body corresponding to the mounting ring.

[0017] Preferably, a maintenance opening is provided at the upper end of the tank body, and a cover plate is bolted to the maintenance opening.

[0018] Preferably, a pressure relief valve is installed at the upper end of the tank body.

[0019] The beneficial effects of the present utility model are as follows: During aeration, the gas supply device provides oxygen, and the oxygen can enter the gas cavity through the air inlet pipe. As the gas is continuously supplied, the gas in the gas cavity expands the aeration hose to discharge oxygen into the sludge. The aeration hoses are evenly distributed in the tank body, enabling the oxygen to be evenly introduced into the sludge, improving the mass transfer efficiency of oxygen in the sludge, enhancing the aeration effect, and accelerating the sludge curing rate.

[0020] Other beneficial effects of the present utility model will be elaborated through the introduction of specific technical features and technical solutions in the specific implementation manner. Those skilled in the art should be able to understand the beneficial technical effects brought by the technical features and technical solutions through the introduction of these technical features and technical solutions. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a high decomposition efficiency sludge oxidation tank of the present utility model.

[0022] Figure 2 It is a cross-sectional view of a high decomposition efficiency sludge oxidation tank of the present utility model showing the mounting ring.

[0023] Figure 3 It is a cross-section of a high decomposition efficiency sludge oxidation tank of the present utility model showing the aeration hose.

[0024] Figure 4 It is an exploded view of a high decomposition efficiency sludge oxidation tank of the present utility model showing the maintenance opening.

[0025] Description of the Reference Numerals:

[0026] 1. Tank body; 11. Support legs; 12. Feed pipe; 13. Discharge pipe; 14. Pressure relief valve; 15. Installation ring; 151. Inclined surface; 16. Inspection port; 161. Cover plate; 2. Aeration assembly; 21. Inner ring; 211. Gas chamber; 22. Aeration structure; 221. Aeration hose; 23. Air inlet pipe; 3. Stirring assembly; 31. Motor; 32. Rotating shaft; 33. Stirring blades. Detailed implementation manners

[0027] The following describes the present utility model based on embodiments, but the present utility model is not limited to these embodiments. In the following detailed description of the present utility model, some specific details are described in detail. In order to avoid confusing the essence of the present utility model, well-known methods, processes, procedures, and components are not described in detail.

[0028] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale.

[0029] Unless the context clearly requires otherwise, the words such as "including", "comprising" and the like in the whole specification and claims should be interpreted as the meaning of including rather than exclusive or exhaustive; that is, the meaning of "including but not limited to".

[0030] In the description of the present utility model, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0031] Referring to Figures 1-4 , the present utility model provides a sludge oxidation tank with high decomposition efficiency, including a tank body 1, an aeration assembly 2 and a stirring assembly 3. The aeration assembly 2 and the stirring assembly 3 are arranged in the tank body 1. The aeration assembly 2 is used to introduce oxygen into the oxidation tank, which is beneficial to the uniform mass transfer of oxygen in the sludge and beneficial to sludge oxidation. The stirring assembly 3 is used to stir the sludge to improve the oxidation efficiency and oxidation effect.

[0032] The tank body 1 is arranged vertically. The tank body 1 is a cylindrical tank body 1. A plurality of support legs 11 are fixed at the lower end of the tank body 1 for fixing the tank body 1 on the ground. A feed pipe 12 is fixed at the upper end of the tank body 1, and a discharge pipe 13 is fixed at the lower end of the tank body 1. The feed pipe 12 can be used to input sludge and supplement oxidant, and the discharge pipe 13 can discharge the oxidized sludge. A pressure relief valve 14 is also fixed at the upper end of the tank body 1, and the pressure relief valve 14 can prevent the pressure in the tank body 1 from being too high. Pump bodies that can be used to control the flow rate can be arranged on both the feed pipe 12 and the discharge pipe 13. This is prior art and is well known to those skilled in the art, so it will not be elaborated in this application.

[0033] The aeration assembly 2 includes an inner ring 21, an aeration structure 22, and an air inlet pipe 23. The inner ring 21 is fixed to the lower end of the tank body 1. A gas chamber 211 is formed in the inner ring 21. A plurality of aeration structures 22 are provided. The plurality of aeration structures 22 are evenly arranged along the circumferential direction of the inner ring 21. The aeration structure 22 includes a plurality of aeration hoses 221 fixed to the inner ring 21. The aeration hoses 221 are arranged along the radial direction of the inner ring 21. The aeration hoses 221 communicate with the gas chamber 211. The air inlet pipe 23 is fixed to the lower side of the inner ring 21. The air inlet pipe 23 communicates with the inner ring 21. The lower end of the air inlet pipe 23 extends to the outside of the tank body 1 and is connected to a gas supply device. During aeration, the gas supply device provides oxygen, and the oxygen can enter the gas chamber 211 through the air inlet pipe 23. As the gas is continuously supplied, the gas in the gas chamber 211 expands the aeration hoses 221 to discharge the oxygen into the sludge. The aeration hoses 221 are evenly distributed in the tank body 1, which can uniformly introduce oxygen into the sludge, improve the mass transfer efficiency of oxygen in the sludge, enhance the aeration effect, and accelerate the sludge curing rate. It should be noted that the aeration hose 221 is a prior art, which can close the pipe body when not aerating to avoid sludge backflow and expand when aerating to complete gas input.

[0034] The stirring assembly 3 includes a rotating shaft 32, stirring blades 33, and a motor 31. The motor 31 is fixed to the lower end of the tank body 1. The rotating shaft 32 is rotatably connected inside the tank body 1. The output shaft of the motor 31 extends into the tank body 1 and is connected to the lower end of the rotating shaft 32. A plurality of stirring blades 33 are provided. The plurality of stirring blades 33 are fixed to the rotating shaft 32. When the motor 31 works, it can drive the rotating shaft 32 to rotate, thereby driving the stirring blades 33 to rotate, which can stir the sludge and improve the oxidation efficiency.

[0035] As an embodiment, an installation ring 15 is fixed to the lower end inside the tank body 1. The installation ring 15 is coaxially arranged with the tank body 1. The inner ring 21 is arranged outside the installation ring 15. The outer circumference of the inner ring 21 abuts against the inner circumference of the tank body 1, and the inner circumference of the inner ring 21 abuts against the outer circumference of the installation ring 15. The installation ring 15 can limit the position of the aeration assembly 2, thereby stably installing the aeration assembly 2. Further, an inclined surface 151 is formed on the inner circumference of the installation ring 15. The discharge pipe 13 is provided at the lower end of the tank body 1 corresponding to the inner ring position of the installation ring 15. The inclined surface 151 can facilitate the flow of sludge. When the sludge is discharged, the sludge can quickly move to the position inside the tank body 1 corresponding to the inner side of the installation ring 15, so that the sludge can be quickly discharged.

[0036] As an embodiment, the stirring blade 33 is a fan-shaped blade, and the fan-shaped blade can increase the stirring area of the stirring blade 33 and further improve the stirring efficiency.

[0037] As an embodiment, an inspection opening 16 is provided at the upper end of the tank body 1, and a cover plate 161 is bolted to the inspection opening 16 for personnel to inspect the internal components of the tank body 1.

[0038] The implementation principle of the present utility model is as follows: during aeration, the air supply device provides oxygen, and the oxygen can enter the gas chamber 211 through the air inlet pipe 23. As the gas is continuously supplied, the gas in the gas chamber 211 expands the aeration hose 221 to discharge oxygen into the sludge. The aeration hoses 221 are evenly distributed in the tank body 1, which can uniformly introduce oxygen into the sludge, improve the mass transfer efficiency of oxygen in the sludge, enhance the aeration effect, and accelerate the sludge curing rate.

[0039] Those skilled in the art can understand that on the premise of no conflict, the above preferred solutions can be freely combined and superimposed.

[0040] It should be understood that the above embodiments are merely exemplary and not restrictive. Without departing from the basic principle of the present utility model, various obvious or equivalent modifications or substitutions made by those skilled in the art to the above details will all be included within the scope of the claims of the present utility model.

Claims

1. A sludge oxidation tank with high decomposition efficiency, characterized in that, It includes a tank body and an aeration component; The aeration component includes an inner ring, an aeration structure and an air inlet pipe; A gas cavity is arranged inside the inner ring. There are multiple aeration structures. The multiple aeration structures are arranged along the circumferential direction of the inner ring. The aeration structure includes multiple aeration hoses. The aeration hoses are arranged along the radial direction of the inner ring. The aeration hoses are communicated with the gas cavity. The air inlet pipe is fixed to the lower side of the inner ring; The inner ring is fixed inside the tank body, and the inner ring is coaxially arranged with the tank body.

2. The high-decomposition-efficiency sludge oxidation tank according to claim 1, wherein, It also includes a stirring component; The stirring component includes a rotating shaft, stirring blades and a motor. The motor is fixed to the lower end of the tank body. The rotating shaft is rotatably connected inside the tank body. The output shaft of the motor extends into the tank body and is fixedly connected to the rotating shaft. The stirring blades are fixedly connected to the rotating shaft.

3. The high-efficiency sludge oxidation tank according to claim 2, wherein, The stirring blades are fan-shaped blades.

4. The high-efficiency sludge oxidation tank according to claim 1, characterized in that, An installation ring is fixed to the lower end inside the tank body. The installation ring is coaxially arranged with the tank body. The inner ring is arranged outside the installation ring. The outer circumference of the inner ring abuts against the inner circumference of the tank body, and the inner circumference of the inner ring abuts against the outer circumference of the installation ring.

5. The high-efficiency sludge oxidation tank according to claim 4, characterized in that, An inclined surface is provided on the inner circumference of the installation ring.

6. The high-decomposition-efficiency sludge oxidation tank according to claim 4, wherein A feed pipe is fixed to the upper end of the tank body, and a discharge pipe is fixed to the lower end of the tank body. The discharge pipe is located at the inner ring position of the tank body corresponding to the installation ring.

7. The high-decomposition-efficiency sludge oxidation tank according to claim 1, wherein An inspection opening is provided at the upper end of the tank body, and a cover plate is bolted to the inspection opening.

8. A high decomposition efficiency sludge oxidation tank as described in claim 1, characterized in that, A pressure relief valve is installed at the upper end of the tank body.

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