Sewage treatment equipment

Abstract

The utility model relates to the technical field of sewage treatment engineering, and discloses sewage treatment equipment which comprises a shell, the top of the shell is fixedly connected with a screening mechanism, the top of the shell is fixedly connected with a stirring mechanism, and the top of the shell is fixedly connected with an ozone storage box. The outer side of the ozone storage box is rotatably connected with a quick release mechanism, the outer side of the shell is fixedly connected with a crawling ladder, a feeding port is formed in the shell, the screening mechanism comprises a first motor, the driving end of the first motor is fixedly connected with a connecting rod, the outer side of the connecting rod is fixedly connected with a silica gel plate, and the silica gel plate is fixedly connected with a feeding port. A plurality of first springs are fixedly connected into the silica gel plate. According to the utility model, the fitting position is continuously changed along with the rotation of the connecting rod, the inside of the filtering barrel can be fully covered, impurities in sewage can be effectively intercepted, and compared with the traditional fixed filtering mode, the sewage can be more fully filtered, the filtering efficiency and effect are improved, and the residual impurities are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment engineering technical field especially relates to a sewage treatment equipment. BACKGROUND

[0002] Sewage treatment equipment is specially used for treating domestic, industrial, medical, rural sewage and landscape water, can remove various pollutants, realizes up to standard discharge or reuse, and is of great significance in environmental protection, water resource protection, public health and safety, promotes economic development and improves city image etc., can avoid pollution, block disease transmission, guarantee enterprise operation, can also alleviate water resource shortage, drive industry development, create livable environment.

[0003] Through the search, the China announcement number for: CN222374395U discloses a filter for sewage treatment, including cleaning module, the cleaning module includes base plate, motor frame and turn plate frame installed on the top of base plate, movable installation in the inside of turn plate frame turn plate, the rotation motor is connected between the motor frame and turn plate, two cylinder sleeves are fixed to one side of the turn plate, the cylinder body is connected between two cylinder sleeves, the annular scraper is slidably installed in the inside of the cylinder body, the motor is connected between two cylinder sleeves, two cylinder covers are sleeved on the outside of the motor output shaft. In the utility model, when the dirt on the inner wall of the cleaning cylinder is cleaned, the controller starts the rotation motor and the motor, the motor output shaft rotates with the cylinder cover, the cylinder cover stops sealing the cylinder body, and then cooperates, the rotation motor indirectly rotates with the cylinder body, so that the annular scraper in the cylinder body reciprocates and translates, and then the dirt on the inner wall of the cylinder body is cleaned, the cleaning method is simple, and subsequent sewage filtering operation is facilitated.

[0004] The above patent mentions in the specification that "the motor 190 output shaft rotates with the cylinder cover 191, the cylinder cover 191 stops sealing the cylinder body 170, then cooperates with the rotation motor 150 that is always working, the annular scraper 180 in the cylinder body 170 circularly translates, thereby completing the cleaning of the dirt on the inner wall of the cylinder body 170, the cleaning method is simple, and subsequent sewage filtering operation is facilitated", but in use, the annular scraper is abraded, so that the outside cannot completely adhere to the inside of the cylinder body, resulting in incomplete cleaning, therefore, a sewage treatment equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a sewage treatment equipment, which aims at improving the problem that impurities in sewage cannot be effectively filtered in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a sewage treatment equipment, including the shell, the top of shell is fixedly connected with screening mechanism, the top of shell is fixedly connected with stirring mechanism, the top of shell is fixedly connected with ozone storage box, the outside of ozone storage box is rotatably connected with quick release mechanism, the outside of shell is fixedly connected with the ladder, the inside of shell is equipped with feeding port,

[0008] The screening mechanism includes a motor, the drive end of the motor is fixedly connected with a connecting rod, the outer side of the connecting rod is fixedly connected with a silica gel plate, the inside of the silica gel plate is fixedly connected with a plurality of springs, the outer side of the silica gel plate is rotatably connected with a filter barrel, the bottom of the filter barrel is fixedly connected with a discharge port, and the bottom of the discharge port is fixedly connected with a discharge pipe.

[0009] Further, when the staff wants to treat sewage, first through the feeding port formed on the shell, the sewage is delivered to the filter barrel of the screening mechanism, and then the motor is started. The drive end of the motor drives the connecting rod fixedly connected thereto to start rotating. Since the connecting rod is fixedly connected with the silica gel plate on the outer side, the silica gel plate rotates synchronously with the connecting rod. It is worth mentioning that the inside of the silica gel plate is fixedly connected with a plurality of springs. Under the driving action of the springs, the outer side of the silica gel plate can always tightly fit the inner wall of the filter barrel. Moreover, with the elasticity of the springs, the silica gel plate can flexibly adapt to the constantly changing outer contact surface due to rotation. In this process, the impurities in the sewage cannot pass through the small holes formed in the filter barrel and are thus trapped inside the filter barrel. The water filtered initially flows into the subsequent stirring mechanism through the discharge port at the bottom of the filter barrel and the discharge pipe connected thereto. At the same time, the ozone stored in the ozone storage box is delivered to the stirring mechanism through the quick release mechanism rotatably connected to the outer side of the ozone storage box, and further reacts with the water filtered initially to purify the sewage.

[0010] As a further description of the above technical solutions:

[0011] The stirring mechanism includes a motor, the drive end of the motor is fixedly connected with a stirring rod, and the outer side of the stirring rod is rotatably connected with a stirring barrel.

[0012] Further, the water filtered by the screening mechanism flows into the stirring barrel, and the motor is started. The drive end of the motor drives the stirring rod to rotate. The stirring rod rotates in the stirring barrel, fully mixes the inflowing water with the ozone delivered from the ozone storage box through the quick release mechanism, further treats the sewage by using the strong oxidizing property of ozone, and realizes the degradation and purification of pollutants in the sewage.

[0013] As a further description of the above technical solutions:

[0014] The quick release mechanism comprises a connecting column, a sliding column rotatably connected inside the connecting column, a sealing shell fixedly connected inside the sliding column, a plurality of spring No.

[0015] Further, when the quick release mechanism is released, the limiting block is separated from the clamping groove, the sliding column and the connected components can be removed, and after maintenance, the sliding column is inserted into the connecting column, the convex block presses the sealing pad, and then the connecting column is rotated to make the limiting block slide into the clamping groove. The spring No. 2 provides a rebound force to make the connection more compact, so that the ozone transmission pipe can be quickly disassembled and sealed.

[0016] As a further description of the above technical solution:

[0017] The inside of the shell is fixedly connected with a storage tank, and the outside of the filter barrel is fixedly connected inside the storage tank.

[0018] Further, the sewage enters the filter barrel through the feed inlet, the filter barrel is fixed in the storage tank, during filtration, impurities remain in the barrel, and the filtered water flows into the storage tank through the barrel wall holes for temporary storage. The storage tank plays a role in transferring, preparing for subsequent water delivery to the stirring barrel and other processing links, and ensuring the orderly progress of the sewage treatment process.

[0019] As a further description of the above technical solution:

[0020] The bottom of the stirring barrel is fixedly connected inside the shell, and the bottom of the sliding column is fixedly connected to the top of the stirring barrel.

[0021] Further, the stirring barrel is fixed to the bottom of the shell to provide a place for the mixing reaction of sewage and ozone. The bottom of the sliding column is connected to the top of the stirring barrel, and the quick release mechanism composed of the connecting column and the connecting column can realize quick disassembly and assembly of the ozone transmission pipe. After installation, ozone enters the stirring barrel through the sliding column and other components, the motor No. 2 drives the stirring rod to stir, so that ozone and sewage are fully reacted and treated.

[0022] As a further description of the above technical solution:

[0023] The inside of the connecting column is provided with a clamping groove, and the outside of the limiting block is slidably connected inside the clamping groove.

[0024] Further, the connecting column is provided with a clamping groove, and the limiting block can slide in the clamping groove. When the connecting column is rotated, the limiting block can be separated from the clamping groove, so that the sliding column and the connected components can be easily disassembled. When installing, the sliding column is inserted, and then the connecting column is rotated, the limiting block slides into the clamping groove, and the rebound force of the spring No. 2 makes the connection compact, so that the quick release mechanism can be quickly connected and stably sealed.

[0025] As a further description of the above technical solutions:

[0026] The top of the sealing gasket is slidingly connected to the inside of the connecting column, and the outside of the sealing gasket is slidingly connected to the inside of the sealing shell.

[0027] Further, when installing, the sliding column is inserted into the connecting column, the connecting column presses down the protruding block of the sealing gasket, so that the sealing gasket slides in the connecting column. The outside of the sealing gasket slides in the sealing shell and is pressed by the spring II.

[0028] As a further description of the above technical solutions:

[0029] The outside of the connecting rod is fixedly connected to the inside of the shell, and the outside of the discharge pipe is fixedly connected to the inside of the shell.

[0030] Further, the sewage enters the filter barrel from the feed inlet, the connecting rod is fixed in the shell, the motor I drives the connecting rod to rotate, so that the silica gel plate is attached to the barrel wall to filter impurities. The filtered water flows out through the discharge pipe, and the discharge pipe is also fixed in the shell to ensure that the water is stably conveyed to the subsequent stirring barrel and other links to ensure the normal operation of the sewage treatment process.

[0031] The utility model has the advantages of:

[0032] 1、In the utility model, the motor I drives the connecting rod, the connecting rod drives the silica gel plate, and the silica gel plate drives the spring I. The spring I cooperates with the filter barrel to filter the impurities in the sewage. The silica gel plate can tightly attach to the inner wall of the filter barrel under the action of the spring I. With the rotation of the connecting rod, the attachment position is constantly changed, which can cover the inside of the filter barrel comprehensively and effectively intercept the impurities in the sewage. Compared with the traditional fixed filtering mode, the sewage can be more fully filtered, the filtering efficiency and effect are improved, and the impurity residue is reduced.

[0033] 2、In the utility model, the connecting column cooperates with the limiting block, the limiting block cooperates with the sliding column, the sliding column cooperates with the sealing shell, the sealing shell cooperates with the spring II, and the spring II cooperates with the sealing gasket. Therefore, the transmission pipe can be disassembled without tools. In actual operation scenes such as sewage treatment, the equipment may fail at any time or need to be maintained regularly. The transmission pipe can be disassembled without tools, which can enable the staff to quickly handle problems when they are found, without spending extra time to find suitable tools, greatly shortening the maintenance time and reducing the impact of equipment downtime on production or processing process. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 A three-dimensional schematic view of a sewage treatment equipment is provided for the utility model;

[0035] Figure 2 A structure diagram of a stirring barrel of the sewage treatment equipment is provided in the utility model;

[0036] Figure 3 A structure diagram of a filtering barrel of the sewage treatment equipment is provided in the utility model;

[0037] Figure 4 For Figure 2 The enlarged view of A in figure 1.

[0038] Legend:

[0039] 1, shell; 2, screening mechanism; 201, motor one; 202, storage tank; 203, filtering barrel; 204, connecting rod; 205, silica gel plate; 206, spring one; 207, discharge port; 208, discharge pipe; 3, stirring mechanism; 301, motor two; 302, stirring rod; 303, stirring barrel; 4, quick release mechanism; 401, connecting column; 402, sliding column; 403, sealing shell; 404, spring two; 405, sealing gasket; 406, limiting block; 5, cat ladder; 6, feed inlet; 7, ozone storage box. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0041] With reference to Figures 1 to 3 , the utility model provides an embodiment: a sewage treatment equipment, including shell 1, the inside fixed connection of shell 1 has storage tank 202, and storage tank 202 plays the role of temporary storage after the sewage of preliminary filtration, provides stable sewage supply for subsequent processing link, avoids the influence processing effect due to sewage flow fluctuation too big, and the top fixed connection of shell 1 has screening mechanism 2, and screening mechanism 2 is installed at the top of shell 1, is mainly responsible for the preliminary solid-liquid separation of sewage, and the top fixed connection of shell 1 has stirring mechanism 3, and the role of stirring mechanism 3 is that the sewage after preliminary filtration is mixed with ozone sufficiently, and the strong oxidizability of ozone is used to further decompose organic matter and harmful substance in sewage, and the top fixed connection of shell 1 has ozone storage box 7, for storing ozone, and ozone is a strong oxidant, can effectively remove peculiar smell in sewage, kill bacteria and decompose organic matter, improve the effect of sewage treatment;

[0042] The outer side of the ozone storage box 7 is rotationally connected with a quick release mechanism 4, and the main function of the quick release mechanism 4 is to facilitate the disassembly and assembly of the pipeline connecting the ozone storage box 7 and the stirring mechanism 3. During equipment maintenance or repair, the staff can quickly disconnect or connect the pipeline through the quick release mechanism 4, thereby improving work efficiency. The outer side of the shell 1 is fixedly connected with a ladder 5, which facilitates their access to the top of the equipment for inspection, maintenance and operation, etc. The inside of the shell 1 is provided with a feed inlet 6, through which the sewage flows into the filter barrel 203 of the screening mechanism 2, and the entire sewage treatment process begins;

[0043] Specifically, the screening mechanism 2 is used to preliminarily separate the solid and liquid in the sewage, remove the large-particle impurities in the sewage, and temporarily store the preliminarily filtered sewage in the storage tank 202. Then, the stirring mechanism 3 is used to mix the sewage with the ozone provided by the ozone storage box 7, further decompose the organic matter and harmful substances in the sewage by using the strong oxidizing property of the ozone, realize the deep treatment of the sewage, and facilitate the disassembly and assembly of the connecting pipeline for the maintenance and repair of the equipment. The ladder 5 provides convenience for the staff to reach the top of the equipment for related operations.

[0044] The screening mechanism 2 includes a motor 201, which is the power source of the screening mechanism 2. When the motor 201 is started, the driving end thereof will generate rotary power. The driving end of the motor 201 is fixedly connected with a connecting rod 204, which will rotate synchronously with the rotation of the motor 201. Meanwhile, the outer side of the connecting rod 204 is fixedly connected inside the shell 1, which ensures the stability of the rotation and avoids shaking or deviation during the rotation. The outer side of the connecting rod 204 is fixedly connected inside the shell 1, and the outer side of the connecting rod 204 is fixedly connected with a silica gel plate 205, which will rotate inside the filter barrel 203 along with the rotation of the connecting rod 204 to avoid the adhesion of impurities to the inner wall of the filter barrel 203. The inside of the silica gel plate 205 is fixedly connected with a plurality of springs 206, which can make the silica gel plate 205 closely adhere to the inner wall of the filter barrel 203 during the rotation. The outer side of the silica gel plate 205 is rotationally connected with the filter barrel 203. When the sewage enters the filter barrel 203, the rotation of the silica gel plate 205 can continuously stir and push the sewage, which helps to improve the filtering efficiency.

[0045] The outer side of the filtering barrel 203 is fixedly connected to the inside of the storage tank 202, a plurality of small holes are formed in the inside of the storage tank 202, when the sewage flows in the filtering barrel 203 under the action of the silica gel plate 205, due to the size limitation of the holes, the large impurities in the sewage are intercepted in the inside of the filtering barrel 203, and the water can flow into the storage tank 202 through the holes, so that the preliminary solid-liquid separation is realized, the bottom of the filtering barrel 203 is fixedly connected with a discharge port 207, the bottom of the discharge port 207 is fixedly connected with a discharge pipe 208, the outer side of the discharge pipe 208 is fixedly connected to the inside of the shell 1, the impurities after filtering flow into the discharge pipe 208 through the discharge port 207 at the bottom of the filtering barrel 203, and the impurities are stably transported to the outside of the device;

[0046] Specifically, the screening mechanism 2 is the starting link in the whole sewage treatment process, and its core task is to preliminarily separate the solid and liquid of the sewage entering the device. Through the power provided by the motor, a series of components are driven to work cooperatively, the small holes on the filtering barrel 203 are used to screen the sewage, the large-particle impurities in the sewage are intercepted, and the water flows into the storage tank 202 through the holes, so that relatively pure sewage is provided for the subsequent sewage treatment process, and the burden of the subsequent treatment is reduced.

[0047] The stirring mechanism 3 includes a motor two 301, the motor two 301 is the power source of the stirring mechanism 3, when the power is turned on, the motor two 301 starts to work, and a rotating power is generated at the driving end of the motor two 301. The rotating power is the basis of the whole stirring process, and provides the necessary driving force for the rotation of the subsequent stirring rod 302. The driving end of the motor two 301 is fixedly connected with the stirring rod 302, when the driving end of the motor two 301 rotates, the stirring rod 302 will rotate synchronously. The outer side of the stirring rod 302 is rotatably connected with the stirring barrel 303, which enables the stirring rod 302 to rotate freely in the stirring barrel 303. During the rotation, the stirring rod 302 will produce a stirring effect on the sewage and ozone treatment agent in the stirring barrel 303. The outer side of the stirring rod 302 is rotatably connected with the stirring barrel 303, and the stirring barrel 303 is a place for the mixing reaction of the sewage and ozone treatment agent. The bottom of the stirring barrel 303 is fixedly connected to the inside of the shell 1, which ensures the stability of the stirring barrel 303 and prevents the stirring effect from being affected or the equipment from being damaged due to shaking during the stirring process.

[0048] Specifically, the stirring mechanism 3 is a key link in the sewage treatment process, and undertakes the important task of fully mixing the preliminarily filtered sewage and ozone treatment agent. Through the power provided by the motor two 301, the stirring rod 302 is driven to rotate at high speed in the stirring barrel 303, so as to promote the uniform contact of the sewage and ozone, and decompose the organic matter and harmful substances in the sewage by using the strong oxidizing property of ozone, thereby realizing the depth treatment of the sewage and improving the purification effect of the sewage.

[0049] Referring toFigure 1 、 Figure 2 、 Figure 4 The quick release mechanism 4 comprises a connecting column 401, which is one of the main body frames of the quick release mechanism 4, and a clamping groove is formed in the connecting column 401, the clamping groove formed in the connecting column 401 has a specific shape and size, and a sliding column 402 is rotatably connected to the inside of the connecting column 401, which makes the sliding column 402 form a relatively stable whole with the stirring barrel 303, the bottom of the sliding column 402 is fixedly connected to the top of the stirring barrel 303, a sealing shell 403 is fixedly connected to the inside of the sliding column 402, the sealing shell 403 provides a relatively closed installation space for the structure inside it, a plurality of springs 404 are fixedly connected to the inside of the sealing shell 403, and a sealing pad 405 is fixedly connected to the top of each spring 404, and the outer side of the sealing pad 405 is slidably connected to the inside of the sealing shell 403;

[0050] The sealing shell 403 can protect the springs 404 and the sealing pad 405 from the influence of the external environment, and also helps to ensure the sealing effect, the top of the sealing pad 405 is slidably connected to the inside of the connecting column 401, and under the action of the springs 404, the sealing pad 405 can always maintain close contact with the connecting column 401 and the sealing shell 403 during the sliding process, the outer side of the sliding column 402 is fixedly connected with a plurality of limiting blocks 406, the outer side of the limiting block 406 is slidably connected to the inside of the clamping groove, when disassembly is needed, the connecting column 401 is rotated, the clamping groove guides the sliding of the limiting block 406, so that the limiting block 406 is separated from the clamping groove, at this time, the sliding column 402 can be pulled out of the connecting column 401, realizing quick disassembly;

[0051] Specifically, it is mainly used to realize the quick disassembly and installation of the connecting component, especially when the device is maintained, repaired or the related components are replaced, which can greatly improve the work efficiency, through the cooperative operation of the connecting column 401, the sliding column 402, the sealing shell 403, the springs 404, the sealing pad 405 and the limiting block 406, the stability and sealing of the connection are guaranteed, and the convenient quick disassembly function is realized, which provides a strong guarantee for the efficient operation and maintenance of the device.

[0052] Working principle: when the staff needs to sewage treatment can be through the feed port 6 to the inside of the filter barrel 203 transmission sewage, sewage transmission to the inside of the filter barrel 203 can be started by motor 201, through the motor 201 connecting rod 204 driven, and connecting rod 204 rotation will be outside the connecting silica gel plate 205 together driven, and the inside of the silica gel plate 205 is provided with a plurality of spring 206, at this time the silica gel plate 205 will be driven by spring 206 from the outside of the silica gel plate 205 fit in the inside of the filter barrel 203, at this time the connecting rod 204 driven can be through the spring 206 reason to constantly adapt to the outside contact surface constantly change due to rotation, and the sewage transmission to the inside of the filter barrel 203, the impurities in the sewage will be too small because the hole in the inside of the filter barrel 203, so that the impurities in the sewage out of the filter barrel 203, at this time the impurities in the sewage will be left in the inside of the filter barrel 203, and the water can be transmitted to the inside of the stirring barrel 303 through the outside of the storage tank 202 connecting electric valve, at this time the motor 301 can be started.

[0053] At this time can be through the transmission pipe to the inside of the ozone storage box 7 stored ozone transmission to the inside of the stirring barrel 303, at this time again through the motor 301 driven stirring rod 302 to the inside of the liquid in the stirring barrel 303 fully mixed, and when the transmission pipe use too long can be through the connecting column 401 rotation, make the limiting block 406 from the connecting column 401 inside the slot inside out, at this time can be disassembled down the transmission pipe, when the transmission pipe maintenance can be again limiting block 406 aimed at the inside of the connecting column 401 sliding column 402 sliding to the inside of the connecting column 401, at this time the connecting column 401 inside the connecting lug will be down to the sealing gasket 405, and when the connecting column 401 again rotation can make the limiting block 406 sliding to the inside of the slot at this time can be released the connecting column 401, at this time the compressed spring 404 will be because there is no force limit from the rebound, make the slot and limiting block 406 connected more closely.

[0054] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or the equivalent replacement of part of the technical features recorded in the foregoing embodiments, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A sewage treatment apparatus comprising a housing (1), characterised in that: The top of the shell (1) is fixedly connected with a screening mechanism (2), the top of the shell (1) is fixedly connected with a stirring mechanism (3), the top of the shell (1) is fixedly connected with an ozone storage box (7), the outer side of the ozone storage box (7) is rotatably connected with a quick release mechanism (4), the outer side of the shell (1) is fixedly connected with a ladder (5), the inside of the shell (1) is provided with a feeding port (6); The screening mechanism (2) comprises a motor one (201), the drive end of the motor one (201) is fixedly connected with a connecting rod (204), the outer side of the connecting rod (204) is fixedly connected with a silica gel plate (205), the inside of the silica gel plate (205) is fixedly connected with a plurality of springs one (206), the outer side of the silica gel plate (205) is rotatably connected with a filter barrel (203), the bottom of the filter barrel (203) is fixedly connected with a discharge port (207), the bottom of the discharge port (207) is fixedly connected with a discharge pipe (208).

2. A sewage treatment apparatus as claimed in claim 1, characterised in that: The stirring mechanism (3) comprises a motor two (301), the drive end of the motor two (301) is fixedly connected with a stirring rod (302), the outer side of the stirring rod (302) is rotatably connected with a stirring barrel (303).

3. A sewage treatment apparatus as claimed in claim 2, wherein: The quick release mechanism (4) comprises a connecting column (401), the inside of the connecting column (401) is rotatably connected with a sliding column (402), the inside of the sliding column (402) is fixedly connected with a sealing shell (403), the inside of the sealing shell (403) is fixedly connected with a plurality of springs two (404), the top of the plurality of springs two (404) is fixedly connected with a sealing pad (405), the outer side of the sliding column (402) is fixedly connected with a plurality of limiting blocks (406).

4. The sewage treatment apparatus according to claim 1, characterized by: The inside of the shell (1) is fixedly connected with a storage tank (202), the outer side of the filter barrel (203) is fixedly connected in the inside of the storage tank (202).

5. The sewage treatment apparatus of claim 3, wherein: The bottom of the stirring barrel (303) is fixedly connected in the inside of the shell (1), the bottom of the sliding column (402) is fixedly connected in the top of the stirring barrel (303).

6. The sewage treatment apparatus of claim 3, wherein: The inside of the connecting column (401) is provided with a clamping groove, the outer side of the limiting block (406) is slidably connected in the inside of the clamping groove.

7. The sewage treatment apparatus of claim 3, wherein: The top of the sealing pad (405) is slidably connected in the inside of the connecting column (401), the outer side of the sealing pad (405) is slidably connected in the inside of the sealing shell (403).

8. The sewage treatment apparatus of claim 1, wherein: The outer side of the connecting rod (204) is fixedly connected in the inside of the shell (1), the outer side of the discharge pipe (208) is fixedly connected in the inside of the shell (1).

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