CN223342537U - Municipal sewage treatment equipment - Google Patents

Abstract

The utility model relates to a sewage treatment device for municipal water supply and drainage, which comprises a fixed plate, a sewage treatment box, a sewage pretreatment mechanism, a pretreated garbage discharge mechanism, a stirring mixing mechanism, a first water pump and a sewage conveying pipe, wherein the sewage treatment box is fixedly arranged on the right side of the upper end face of the fixed plate, the sewage conveying pipe is fixedly arranged on the left side of the top of the sewage treatment box, the sewage pretreatment mechanism is arranged at the upper end of the interior of the sewage treatment box, the stirring mixing mechanism is arranged at the lower end of the interior of the sewage treatment box, the pretreated garbage discharge mechanism is arranged on the right side of the sewage treatment box and corresponds to the sewage pretreatment mechanism and is used for discharging pretreated garbage discharged by the sewage pretreatment mechanism, and the first water pump is fixedly arranged on the left side of the sewage treatment box and is used for discharging sewage treated by the sewage treatment box to a subsequent working unit. The utility model reduces the pollution and winding of the impurity to the stirring roller, thereby reducing the working strength of workers.

Description

Sewage treatment device for municipal water supply and drainage

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device for municipal water supply and drainage.

Background

In recent years, with the increasingly prominent water environment problems and the increasingly exposed overload operation problems of centralized sewage treatment plants, the demands of the decentralized sewage treatment equipment are increasingly strong.

The utility model provides a chinese patent application for a domestic sewage treatment equipment of municipal administration water supply and drainage, the name is CN 220665083U, relates to sewage treatment technical field, including the organism, the inside lower extreme fixed mounting of organism has the diaphragm, the left end fixed mounting at diaphragm top has division board one, the middle-end fixed mounting at diaphragm top has division board two, the right-hand member fixed mounting at diaphragm top has division board three, the left end fixed mounting at organism top has the inlet tube. According to the utility model, the screw rod is driven to rotate by the starting motor II, and the threaded sleeve is fixedly connected with the sliding block, so that the sliding block slides up and down on the sliding rail, and the moving rod is driven to move up and down, so that the cleaning ring moves up and down on the outer surface of the uv tube to clean impurities on the surface of the uv tube, and the uv tube is not required to be manually taken out from the device to be cleaned, so that the cleaning is more convenient, the damage to the uv tube is reduced, and the convenience and practicality of the device are improved.

The defects of the prior art are as follows:

Because municipal wastewater contains more impurities, when the wastewater enters the treatment box and more solid matters are in the impurities, the garbage is easy to attach or twine with the stirring rod during treatment and stirring, so that the stirring rod needs to be cleaned manually, and the labor intensity is high.

Disclosure of Invention

The utility model aims at solving the problems and provides a sewage treatment device for municipal water supply and drainage, which aims at reducing pollution and winding of impurities on a stirring roller and reducing the working strength of workers.

In order to solve the problems, the technical scheme provided by the utility model is as follows:

The municipal water supply and drainage sewage treatment device is characterized by comprising a fixed plate, a sewage treatment box, a sewage pretreatment mechanism, a pretreated garbage discharging mechanism, a stirring and mixing mechanism, a first water pump and a sewage conveying pipe, wherein:

The sewage treatment box is fixedly arranged on the right side of the upper end surface of the fixing plate;

the sewage conveying pipe is fixedly arranged at the left side of the top of the sewage treatment box;

The sewage pretreatment mechanism is arranged at the upper end of the interior of the sewage treatment box;

The stirring and mixing mechanism is arranged at the lower end of the interior of the sewage treatment box;

The pretreatment garbage discharging mechanism is arranged at a position on the right side of the sewage treatment box, corresponding to the sewage pretreatment mechanism, and is used for discharging the pretreatment garbage discharged by the sewage pretreatment mechanism;

The first water pump is fixedly arranged on the left side of the sewage treatment box and used for discharging sewage treated by the sewage treatment box to a subsequent working unit.

Preferably, the sewage pretreatment mechanism comprises a first motor, a first transmission gear train and a filter belt group, wherein:

The output end of the first motor is fixedly connected with the input end of the first transmission gear train;

The first transmission wheel train is in transmission connection with the filter belt group, and a plurality of groups of filter holes are formed in the filter belt group in a penetrating manner.

Preferably, the first transmission gear train comprises a first driving wheel, a first driven wheel, a first belt wheel, a second driving wheel and a second driven wheel, wherein:

The front end of the first driving wheel penetrates through the side wall of the sewage treatment box and is then fixedly connected with the first belt wheel;

the first belt pulley is in transmission connection with the second belt pulley;

the rear end of the second belt wheel is fixedly connected with the second driving wheel;

the rear end of the second driving wheel is rotationally connected with the inner wall of the back surface of the sewage treatment box;

The front end and the rear end of the inner wall of the left side of the sewage treatment box are rotatably connected with the first driven wheel;

The front end and the rear end of the inner wall on the right side of the sewage treatment box are rotatably connected with the second driven wheels;

the filter belt group comprises a first filter belt and a second filter belt, wherein:

The first filter belt is in transmission connection with the first driven wheel and the first driving wheel;

The second filter belt is in transmission connection with the second driven wheel and the second driving wheel;

The outer rings of the first driven wheel, the first driving wheel, the second driving wheel and the second driven wheel are fixedly connected with protruding blocks which are matched with the filtering holes in the filtering band group.

Preferably, a first automatic medicine feeder is arranged in the middle of the outer side of the top of the sewage treatment box, a first conveying pipe of the first automatic medicine feeder is fixedly connected with the lower side of the front surface of the sewage treatment box, and a liquid level meter is fixedly connected to the left side of the inner wall of the sewage treatment box.

Preferably, the pretreatment garbage discharging mechanism comprises a discharging box, a box door and an inclined connecting plate, wherein the right side of the discharging box is hinged with the box door, the left side of the discharging box is fixedly connected with the inclined connecting plate, and a sewage outlet is formed in the joint of the upper end of the right side of the sewage treatment box and the treatment garbage discharging mechanism.

The stirring and mixing mechanism comprises a second motor, a first belt pulley group, a second belt pulley group, a third belt pulley group and stirring rods, wherein the first belt pulley group is arranged at the front end of the second motor, the first belt pulley group is in transmission connection with the second belt pulley group, the second belt pulley group is in transmission connection with the third belt pulley group, and a plurality of groups of stirring rods are respectively arranged at the rear ends of the first belt pulley group, the second belt pulley group and the third belt pulley group.

Preferably, a standing tank is arranged on the left side of the first water pump, a conveying pipe of the first water pump is positioned at the lower end of the left side of the sewage treatment tank, and an output pipe of the first water pump is positioned at the upper end of the standing tank.

Preferably, a suction mechanism is arranged on the left side of the upper end of the standing box, and comprises a second water pump, an input pipe, a conveying pipe, a connecting hose, a fixing piece, a floating plate and a floating ball, wherein:

The right side of the second water pump is fixedly connected with the input pipe, one end, far away from the second water pump, of the input pipe is fixedly connected with the connecting hose, the lower end of the connecting hose is fixedly connected with the fixing piece, the outer end of the fixing piece is fixedly connected with the floating plate, the floating balls are fixedly connected to the two sides of the lower end of the floating plate, the left side of the second water pump is fixedly connected with the conveying pipe, and one end, far away from the second water pump, of the conveying pipe is fixedly connected with the disinfection box.

Preferably, a plurality of groups of filter screen plates are arranged in the disinfection box, an overhaul box door is arranged at the upper end of the left side wall of the disinfection box, a plurality of groups of support bars are fixedly connected in the disinfection box, the filter screen plates are arranged at the upper ends of the support bars, a second automatic medicine feeder is arranged on the outer side of the top of the disinfection box, and a second conveying pipe of the second automatic medicine feeder is fixedly connected with the lower side of the front face of the disinfection box.

Preferably, the lower end of the left side of the disinfection box is fixedly connected with a drain pipe, an electromagnetic valve is arranged in the drain pipe, and the lower end of the standing box is fixedly connected with a drain pipe.

Compared with the prior art, the utility model has the following advantages:

The device reduces the pollution and winding of impurities to the stirring roller, thereby reducing the working strength of workers.

Drawings

FIG. 1 is a schematic overall view of an apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of an apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic elevation view of an apparatus in accordance with an embodiment of the present utility model;

FIG. 4 is an enlarged partial pictorial view at A of FIG. 3 in an apparatus in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic view showing a transmission structure of a sewage pretreatment mechanism in an apparatus according to an embodiment of the present utility model;

Fig. 6 is a schematic diagram of the transmission structure of the stirring and mixing mechanism in the device according to the embodiment of the utility model.

Wherein: A fixed plate, 2, a sewage treatment tank, 3, a sewage pretreatment mechanism, 301, a first motor, 310, a first drive train, 320, a filter belt set, 302, a first drive wheel, 303, a first driven wheel, 304, a first filter belt, 305, a first pulley, 306, a second pulley, 307, a second drive wheel, 308, a second driven wheel, 309, a second filter belt, 4, a pretreated waste discharge mechanism, 401, a discharge tank, 402, a tank door, 403, a bevel connection plate, 5, a stirring and mixing mechanism, 501, a second motor, 502, a first pulley set, 503, a second pulley set, 504, a third pulley set, 505, a stirring rod, 6, a first water pump, 7, a static tank, 701, a blow-down pipe, 8, a disinfection tank, 801, a filter screen, 802, a drain pipe, 9, a suction mechanism, 901, a second water pump, 902, an input pipe, 903, 904, a connection hose, 905, a fixed plate, a floating ball, 10, a sewage delivery pipe, 11, an automatic conveyor, a first delivery pipe, 1101, a second delivery pipe, 1201, a third delivery pipe, and a third delivery pipe

Detailed Description

The present utility model is further illustrated below in conjunction with specific embodiments, it being understood that these embodiments are meant to be illustrative of the utility model and not limiting the scope of the utility model, and that modifications of the utility model, which are equivalent to those skilled in the art to which the utility model pertains, fall within the scope of the utility model defined in the appended claims after reading the utility model.

As shown in fig. 1, 2, 3, 4, 5 and 6, the municipal water supply and drainage sewage treatment device is characterized by comprising a fixed plate 1, a sewage treatment box 2, a sewage pretreatment mechanism 3, a pretreated garbage discharge mechanism 4, a stirring and mixing mechanism 5, a first water pump 6 and a sewage conveying pipe 10, wherein:

the sewage treatment box 2 is fixedly arranged on the right side of the upper end surface of the fixed plate 1.

The sewage delivery pipe 10 is fixedly arranged at the left side of the top of the sewage treatment tank 2.

The sewage pretreatment mechanism 3 is provided at the upper end of the inside of the sewage treatment tank 2.

The stirring and mixing mechanism 5 is provided at the lower end of the interior of the sewage treatment tank 2.

The pretreatment garbage discharging mechanism 4 is arranged at a position on the right side of the sewage treatment tank 2 corresponding to the sewage pretreatment mechanism 3 and is used for discharging the pretreatment garbage discharged by the sewage pretreatment mechanism 3.

The first water pump 6 is fixedly arranged at the left side of the sewage treatment tank 2 and is used for discharging the sewage treated by the sewage treatment tank 2 to a subsequent working unit.

It should be noted that, the sewage pretreatment mechanism 3 includes a first motor 301, a first transmission gear train 310, and a filter belt set 320, wherein:

The output end of the first motor 301 is fixedly connected with the input end of the first transmission gear train 310.

The first transmission wheel train 310 is in transmission connection with the filter belt group 320, and a plurality of groups of filter holes are formed in the filter belt group 320 in a penetrating manner.

It should be further noted that, the first transmission gear train 310 includes a first driving wheel 302, a first driven wheel 303, a first pulley 305, a second pulley 306, a second driving wheel 307, and a second driven wheel 308, wherein:

the first driving wheel 302 is fixedly connected with the output end of the first motor 301, and the front end of the first driving wheel 302 penetrates through the side wall of the sewage treatment tank 2 and is then fixedly connected with the first belt wheel 305.

First pulley 305 is in driving connection with second pulley 306.

The rear end of the second pulley 306 is fixedly connected to a second drive wheel 307.

The rear end of the second driving wheel 307 is rotatably connected to the inner wall of the back surface of the sewage treatment tank 2.

The front and rear ends of the left inner wall of the sewage treatment tank 2 are rotatably connected with a first driven wheel 303.

The front end and the rear end of the inner wall on the right side of the sewage treatment tank 2 are rotatably connected with a second driven wheel 308.

Filter band set 320 comprises first filter band 304 and second filter band 309, wherein:

the first filter belt 304 is in transmission connection with the first driven wheel 303 and the first driving wheel 302.

The second filter belt 309 is in driving connection with the second driven pulley 308 and the second driving pulley 307.

The outer rings of the first driven wheel 303, the first driving wheel 302, the second driving wheel 307 and the second driven wheel 308 are fixedly connected with protruding blocks which are matched with the filtering holes on the filtering band set 320.

The middle part of the outer side of the top of the sewage treatment tank 2 is provided with a first automatic medicine feeder 11, a first conveying pipe 1101 of the first automatic medicine feeder 11 is fixedly connected with the lower side of the front surface of the sewage treatment tank 2, and a liquid level meter is fixedly connected with the left side of the inner wall of the sewage treatment tank 2.

It should be further noted that, the level gauge is lower than the drain, and the level gauge is connected with the sewage conveying pipe 10 in a signal manner to prevent the sewage to be treated in the sewage treatment tank 2 from being discharged from the drain.

The pretreatment garbage discharging mechanism 4 comprises a discharging box 401, a box door 402 and an inclined connecting plate 403, wherein the right side of the discharging box 401 is hinged with the box door 402, the left side of the discharging box 401 is fixedly connected with the inclined connecting plate 403, and a sewage outlet is formed at the joint of the upper end of the right side of the sewage treatment box 2 and the treatment garbage discharging mechanism 4.

It should be further noted that, by adopting the above technical scheme, the impurities filtered by the sewage pretreatment mechanism 3 can be conveyed to the upper end of the inclined connecting plate 403 through the sewage pretreatment mechanism 3, and fall to the bottom end of the discharge box 401 through the inclination of the inclined connecting plate 403, when the impurities at the bottom end of the discharge box 401 are more, the box door 402 can be pushed open, so that the impurities are discharged outside through the opening.

As shown in fig. 3 and 6, the stirring and mixing mechanism 5 includes a second motor 501, a first pulley set 502, a second pulley set 503, a third pulley set 504 and a stirring rod 505, where the first pulley set 502 is disposed at the front end of the second motor 501, the first pulley set 502 is in transmission connection with the second pulley set 503, the second pulley set 503 is in transmission connection with the third pulley set 504, and multiple sets of stirring rods 505 are disposed at the rear ends of the first pulley set 502, the second pulley set 503 and the third pulley set 504.

It should be further noted that the first belt pulley set 502, the second belt pulley set 503 and the third belt pulley set 504 are formed by combining two belt pulleys and a transmission belt, the first belt pulley set 502 is driven to rotate by the second motor 501, the second belt pulley set 503 is driven to rotate by the first belt pulley set 502, and the third belt pulley set 504 is driven to rotate by the second belt pulley set 503, so as to drive the stirring rod 505 to rotate.

The left side of the first water pump 6 is provided with a standing tank 7, the delivery pipe of the first water pump 6 is positioned at the lower end of the left side of the sewage treatment tank 2, and the output pipe of the first water pump 6 is positioned at the upper end of the standing tank 7.

It should be noted that the mixed water in the sewage treatment tank 2 may be pumped into the stationary tank 7 by the first water pump 6.

The suction means 9 is provided on the left side of the upper end of the stationary box 7, and the suction means 9 includes a second water pump 901, an input pipe 902, a delivery pipe 903, a connection hose 904, a fixing piece 905, a floating plate 906, and a floating ball 907, wherein:

The right side of the second water pump 901 is fixedly connected with an input pipe 902, one end, far away from the second water pump 901, of the input pipe 902 is fixedly connected with a connecting hose 904, the lower end of the connecting hose 904 is fixedly connected with a fixing piece 905, the outer end of the fixing piece 905 is fixedly connected with a floating plate 906, floating balls 907 are fixedly connected to two sides of the lower end of the floating plate 906, the left side of the second water pump 901 is fixedly connected with a conveying pipe 903, and one end, far away from the second water pump 901, of the conveying pipe 903 is fixedly connected with a sterilizing box 8.

It should be further noted that, after the sewage mixed in the static tank 7 is settled, the floating ball 907 may drive the floating plate 906 and the fixing member 905 to float, and the treated water at the upper end of the sediment may be delivered to the interior of the sterilizing tank 8 by the second water pump 901.

It should be noted that, a plurality of groups of filter screen plates 801 are arranged in the disinfection box 8, an overhaul box door is arranged at the upper end of the left side wall of the disinfection box 8, a plurality of groups of support bars are fixedly connected in the disinfection box 8, the filter screen plates 801 are arranged at the upper ends of the support bars, a second automatic medicine feeder 12 is arranged at the outer side of the top of the disinfection box 8, and a second conveying pipe 1201 of the second automatic medicine feeder 12 is fixedly connected with the lower side of the front surface of the disinfection box 8.

It should be further noted that, when the access door is opened, the filter screen plate 801 placed at the upper end of the support bar can be taken out for replacement and cleaning.

It should be further noted that the second automatic medicine feeder 12 is an existing device, and can deliver the prepared medicine liquid.

The drain pipe 802 is fixedly connected to the lower end of the left side of the sterilization box 8, an electromagnetic valve is provided in the drain pipe 802, and a drain pipe 701 is fixedly connected to the lower end of the stationary box 7.

It is to be noted that the sewage is conveyed to the upper end of the fixed plate 1 through the sewage conveying pipe 10, the first motor 301 is started when the sewage falls down from the upper end of the fixed plate 1, then the first driving wheel 302 is driven to rotate through the first motor 301, the first filtering belt 304 is driven to drive the outer ends of the first driving wheel 302 and the first driven wheel 303 from bottom to top, the filtered impurities are filtered through the filtering holes of the first filtering belt 304 when the sewage falls down from the upper end, the filtered impurities are conveyed to the inside of the discharge tank 401 through the first filtering belt 304, the second filtering belt 309 and the inclined connecting plate 403, the sewage falling into the inside of the sewage treatment tank 2 is added through the first automatic chemical adder 11, the second motor 501 drives the plurality of stirring rods 505 to stir in a rotating mode when the chemical is added, so that the chemical and the sewage are mixed, after the chemical is mixed, the mixed sewage is conveyed to the inside of the static tank 7 through the first water pump 6 to precipitate, after the sewage mixed inside of the static tank 7 is precipitated, the filtered impurities can be floated through the floating ball 907 driving plate 906 and the fixed piece 905, the filtered impurities are conveyed to the inside of the discharge tank 401 through the second water pump 901, the water can be conveyed to the inside of the filter tank 8 through the automatic chemical adder 11 to the filter drum 8 when the chemical adder is added, and the water can be sterilized through the second automatic chemical adder is added, and the water can be mixed with the water can be conveyed through the filter drum 12, and the filter can be added by the filter structure when the filter device is added.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, utility model lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this utility model.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, as used in the specification or claims, the term "comprising" is intended to be inclusive in a manner similar to the term "comprising," as interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean "non-exclusive or".

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. A sewage treatment device for municipal water supply and drainage is characterized by comprising a fixed plate (1), a sewage treatment box (2), a sewage pretreatment mechanism (3), a pretreatment garbage discharging mechanism (4), a stirring and mixing mechanism (5), a first water pump (6) and a sewage conveying pipe (10), wherein:

The sewage treatment box (2) is fixedly arranged on the right side of the upper end surface of the fixed plate (1);

the sewage conveying pipe (10) is fixedly arranged at the left side of the top of the sewage treatment box (2);

The sewage pretreatment mechanism (3) is arranged at the upper end of the interior of the sewage treatment box (2);

The stirring and mixing mechanism (5) is arranged at the lower end of the interior of the sewage treatment box (2);

The pretreatment garbage discharging mechanism (4) is arranged at the right side of the sewage treatment box (2) and corresponds to the sewage pretreatment mechanism (3) and is used for discharging the pretreatment garbage discharged by the sewage pretreatment mechanism (3);

The first water pump (6) is fixedly arranged on the left side of the sewage treatment box (2) and is used for discharging sewage treated by the sewage treatment box (2) to a subsequent working unit.

2. The municipal water supply and drainage sewage treatment device according to claim 1, wherein the sewage pretreatment mechanism (3) comprises a first motor (301), a first transmission gear train (310) and a filter belt set (320), wherein:

the output end of the first motor (301) is fixedly connected with the input end of the first transmission gear train (310);

The first transmission wheel system (310) is in transmission connection with the filter belt group (320), and a plurality of groups of filter holes are formed in the filter belt group (320) in a penetrating mode.

3. The municipal water supply and drainage sewage treatment device according to claim 2, wherein the first transmission gear train (310) comprises a first driving wheel (302), a first driven wheel (303), a first belt wheel (305), a second belt wheel (306), a second driving wheel (307) and a second driven wheel (308), wherein:

The front end of the first driving wheel (302) penetrates through the side wall of the sewage treatment box (2) and is then fixedly connected with the first belt wheel (305);

The first belt pulley (305) is in transmission connection with the second belt pulley (306);

the rear end of the second belt wheel (306) is fixedly connected with the second driving wheel (307);

The rear end of the second driving wheel (307) is rotationally connected with the inner wall of the back surface of the sewage treatment box (2);

The front end and the rear end of the inner wall of the left side of the sewage treatment box (2) are rotatably connected with the first driven wheel (303);

The front end and the rear end of the inner wall on the right side of the sewage treatment box (2) are rotatably connected with the second driven wheel (308);

The filter belt set (320) comprises a first filter belt (304) and a second filter belt (309), wherein:

The first filter belt (304) is in transmission connection with the first driven wheel (303) and the first driving wheel (302);

The second filter belt (309) is in transmission connection with the second driven wheel (308) and the second driving wheel (307);

The outer rings of the first driven wheel (303), the first driving wheel (302), the second driving wheel (307) and the second driven wheel (308) are fixedly connected with protruding blocks matched with the filtering holes on the filtering band set (320).

4. The municipal water supply and drainage sewage treatment device according to claim 3 is characterized in that a first automatic chemical feeder (11) is arranged in the middle of the outer side of the top of the sewage treatment box (2), a first conveying pipe (1101) of the first automatic chemical feeder (11) is fixedly connected with the lower side of the front face of the sewage treatment box (2), and a liquid level meter is fixedly connected to the left side of the inner wall of the sewage treatment box (2).

5. The municipal water supply and drainage sewage treatment device according to claim 4, wherein the pretreated garbage discharge mechanism (4) comprises a discharge box (401), a box door (402) and an inclined connecting plate (403), wherein the right side of the discharge box (401) is hinged with the box door (402), the left side of the discharge box (401) is fixedly connected with the inclined connecting plate (403), and a sewage outlet is formed in the joint of the upper end of the right side of the sewage treatment box (2) and the treated garbage discharge mechanism (4).

6. The municipal water supply and drainage sewage treatment device according to claim 5, wherein the stirring and mixing mechanism (5) comprises a second motor (501), a first belt pulley set (502), a second belt pulley set (503), a third belt pulley set (504) and a stirring rod (505), wherein the first belt pulley set (502) is arranged at the front end of the second motor (501), the first belt pulley set (502) is in transmission connection with the second belt pulley set (503), the second belt pulley set (503) is in transmission connection with the third belt pulley set (504), and a plurality of groups of stirring rods (505) are respectively arranged at the rear ends of the first belt pulley set (502), the second belt pulley set (503) and the third belt pulley set (504).

7. The municipal water supply and drainage sewage treatment device according to claim 6 is characterized in that a standing box (7) is arranged on the left side of the first water pump (6), a conveying pipe of the first water pump (6) is located at the lower end of the left side of the sewage treatment box (2), and an output pipe of the first water pump (6) is located at the upper end of the standing box (7).

8. The municipal water supply and drainage sewage treatment device according to claim 7, wherein a suction mechanism (9) is arranged on the left side of the upper end of the standing box (7), the suction mechanism (9) comprises a second water pump (901), an input pipe (902), a conveying pipe (903), a connecting hose (904), a fixing piece (905), a floating plate (906) and a floating ball (907), wherein:

The right side of the second water pump (901) is fixedly connected with the input pipe (902), one end, far away from the second water pump (901), of the input pipe (902) is fixedly connected with the connecting hose (904), the lower end of the connecting hose (904) is fixedly connected with the fixing piece (905), the outer end of the fixing piece (905) is fixedly connected with the floating plate (906), two sides of the lower end of the floating plate (906) are fixedly connected with the floating balls (907), the left side of the second water pump (901) is fixedly connected with the conveying pipe (903), and one end, far away from the second water pump (901), of the conveying pipe (903) is fixedly connected with the disinfection box (8).

9. The municipal water supply and drainage sewage treatment device according to claim 8 is characterized in that a plurality of groups of filter screen plates (801) are arranged in the disinfection box (8), an overhaul box door is arranged at the upper end of the left side wall of the disinfection box (8), a plurality of groups of support bars are fixedly connected to the interior of the disinfection box (8), the filter screen plates (801) are arranged at the upper ends of the support bars, a second automatic medicine feeder (12) is arranged on the outer side of the top of the disinfection box (8), and a second conveying pipe (1201) of the second automatic medicine feeder (12) is fixedly connected with the lower side of the front face of the disinfection box (8).

10. The municipal water supply and drainage sewage treatment device according to claim 9 is characterized in that a drain pipe (802) is fixedly connected to the lower end of the left side of the disinfection box (8), an electromagnetic valve is arranged in the drain pipe (802), and a drain pipe (701) is fixedly connected to the lower end of the standing box (7).