CN112374595B

CN112374595B - Sewage floater processing apparatus based on flocculation precipitation

Info

Publication number: CN112374595B
Application number: CN202011304297.2A
Authority: CN
Inventors: 程雪芳
Original assignee: Shenzhen Baoan Dongjiang Environmental Protection Technology Co ltd
Current assignee: Shenzhen Baoan Dongjiang Environmental Protection Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2023-06-27
Anticipated expiration: 2040-11-19
Also published as: CN112374595A

Abstract

The invention relates to the technical field of sewage floater purification, in particular to a sewage floater treatment device based on flocculation precipitation. The sewage treatment device comprises a sedimentation area, a cylindrical sludge chamber is formed in the bottom of the sedimentation area, at least three sludge chambers are arranged in the sludge chambers, a driving shaft, a first driven shaft and a second driven shaft are fixedly arranged in the three sludge chambers respectively, a first belt pulley is fixedly arranged at one end of the first driven shaft, a second belt pulley is fixedly arranged at one end of the second driven shaft, a conveying motor is coaxially connected to the driving shaft, a sealing element is fixedly arranged at one end opening of the sludge chamber, at least one sealing plug is arranged in the sealing element, at least three sealing plugs are fixedly connected through connecting rods, a plurality of mounting holes are formed in the side wall surfaces of the connecting rods, and through stirring blades, the stirring blades can accelerate the mixing of flocculating agent and floating particles when the stirring blades are used for conveniently flocculating and throwing, so that the flocculating and settling efficiency of sewage floating objects is effectively improved.

Description

Sewage floater processing apparatus based on flocculation precipitation

Technical Field

The invention relates to the technical field of sewage floater purification, in particular to a sewage floater treatment device based on flocculation precipitation.

Background

The flocculation sedimentation treatment refers to a water treatment process that flocculating agent is used for flocculating suspended particles in water to generate coagulation sedimentation, after the flocculating agent is added into the water, colloid and dispersed particles of suspended matters collide with each other to generate floccules due to the action of molecular attraction, the size and the mass continuously become larger in the sedimentation process, the sedimentation speed is increased along with the depth, at the moment, the removal rate of the suspended matters not only depends on the sedimentation speed of the particles, but also is related to the depth of a sedimentation tank, the flocculation process is divided into two types of free flocculation and contact flocculation, the former is generated in the sedimentation tank, the latter is generated in a suspension clarification tank or a contact filter tank, and alum flowers formed after the flocculating agent is added into ground water and suspended organic matters in domestic sewage. The sediment in water of activated sludge in biochemical treatment belongs to flocculation sediment.

A large amount of sewage can be produced in human life and industrial production, and due to the shortage of water resources in China, the sewage flocculation precipitation is one of important links of sewage treatment, suspended particles in the sewage are removed through the flocculation precipitation, but the existing precipitation device for sewage treatment is long in time consumption and affects the sewage treatment efficiency, so that the invention aims to provide the sewage floater treatment device based on the flocculation precipitation, and the problems that the precipitation device for sewage treatment is long in time consumption and affects the sewage treatment efficiency are solved.

Disclosure of Invention

The invention aims to provide a sewage floater treatment device based on flocculation precipitation, which aims to solve the problems in the background technology.

In order to achieve the above object, the present invention provides a sewage floater treating apparatus based on flocculation precipitation, comprising a housing, and a stirring part and a precipitation zone installed in the housing:

the stirring part comprises at least a supporting seat, a shaft hole is formed in the upper surface of the supporting seat, which is close to the edge of one end, a stirring motor is fixedly arranged on the upper surface of the supporting seat, an output shaft of the stirring motor is coaxially connected with a stirring piece through the shaft hole, the stirring piece comprises at least a stirring blade, the top of the stirring blade is fixedly connected with a stirring shaft, a medicine storage groove is formed in the top of the stirring blade, a first fixing hole is formed in the position, close to the peripheral edge of the medicine storage groove, of the top of the stirring blade, a medicine storage piece is fixedly arranged in the medicine storage groove, a medicine administration hole communicated with the medicine storage groove is formed in the surface of the stirring She Cebi, an I-shaped chute is formed in the surface of the right side wall of the supporting seat, and a positioning hole communicated with the chute is formed in the upper surface of the supporting seat;

when the stirring part of the embodiment is specifically used, the filled ferrous sulfate is used as a flocculating agent to be filled into the medicine bag, the stirring motor is powered, the stirring motor operates, the stirring blade rotates along with the output shaft of the motor in the flocculation reaction zone, the flocculating agent gradually seeps out from the medicine feeding hole along with the rotation of the stirring blade, the flocculating agent enables colloid and dispersed particles of suspended matters to generate floccules under the interaction of molecular force, the floccules collide with each other and agglomerate in the sedimentation process, the size and the mass of the floccules are continuously increased, the sedimentation speed is continuously increased, and the rotating stirring blade accelerates the mixing of the flocculating agent and suspended matters particles, so that the flocculation sedimentation efficiency is improved.

The sedimentation device comprises a sedimentation zone, wherein the sedimentation zone at least comprises a sedimentation zone, the bottom of the sedimentation zone is provided with at least three cylindrical sludge chambers, the three inner sludge chambers are respectively and fixedly provided with a driving shaft, a first driven shaft and a second driven shaft, spiral blades are fixedly arranged on the driving shaft, the first driven shaft and the second driven shaft, one end of the driving shaft is fixedly provided with a double-groove belt pulley, one end of the first driven shaft is fixedly provided with a first belt pulley, one end of the second driven shaft is fixedly provided with a second belt pulley, the driving shaft is coaxially connected with a conveying motor, one end opening of the sludge chambers is fixedly provided with a sealing piece, the sealing piece at least comprises sealing plugs, the sealing plugs are at least provided with three sealing plugs, the three sealing plugs are fixedly connected through a connecting rod, and the surface of the side wall of the connecting rod is provided with a plurality of mounting holes;

when the sedimentation zone of this embodiment is specifically used, the suspended solid granule of fully reacting in flocculation reaction zone enters into the sedimentation zone through oblique baffle, flocculation sediment is precipitated gradually by the sedimentation zone, finally pile up in the mud is indoor, when the sediment in the mud is indoor needs clear up and discharge, take off the sealing member of discharge port department, supply power for the conveying motor, conveying motor operation, conveying motor output shaft drives the driving shaft rotation, first driven shaft and second driven shaft pass through belt drive, first driven shaft and second driven shaft and driving shaft synchronous rotation, and drive the spiral leaf rotation, promote the sediment smart brother drain in the mud through the spiral leaf and discharge, the clean water after the sediment is discharged from the clean water exit.

As a further improvement of the technical scheme, support arms are fixedly arranged on two sides of a leaning port at the top of the shell, a filter screen is fixedly arranged at the position, close to the top, of the side wall of the inner cavity of the shell, an inclined partition plate is fixedly arranged at the position, close to the bottom of the filter screen, of the side wall of the inner cavity of the shell, and a purified water outlet is formed at the position, close to the bottom of the inclined partition plate, of the side wall of the shell.

As a further improvement of the technical scheme, the medicine storage part at least comprises a top seat, a second fixing hole is formed in the upper surface of the top seat, which is close to the peripheral edge, a medicine bag is fixedly connected to the lower surface of the top seat, and the size of the medicine bag is matched with the size of the medicine storage groove.

As a further improvement of the technical scheme, the medicine storage piece is connected with the first fixing hole of the medicine storage groove through screw threads through a second fixing hole, and flocculating agents such as ferrous sulfate and the like can be filled in the medicine bag.

As a further improvement of the technical scheme, at least three stirring blades are arranged, the three stirring blades are distributed in an annular array along the center of the stirring shaft, and the stirring blades are paddle-type rectangular stirring blades.

As a further improvement of the technical scheme, positioning grooves are formed in the surfaces of the upper side and the lower side of the supporting arm, the supporting arm is of an I-shaped structure, and the supporting seat is nested and fixed with the supporting arm through the sliding groove.

As a further improvement of the technical scheme, the inclined partition plates incline downwards by 10-15 degrees, a plurality of inclined partition plates are arranged, a plurality of inclined partition plates are stacked up and down, and a gap is reserved between two inclined partition plates.

As a further improvement of the technical scheme, the size of the sealing plug is matched with the size of the opening of the sludge chamber, the sealing plug is fixedly connected with the side wall of the sludge chamber through the mounting hole, and the opening at one end of the sludge chamber is provided with a sewage outlet.

As a further improvement of the technical proposal, the double-groove belt pulley is horizontally aligned with the first belt pulley, and the double-groove belt pulley is connected with the first belt pulley through belt transmission.

As a further improvement of the technical proposal, the double-groove belt pulley is horizontally aligned with the second belt pulley, and the double-groove belt pulley is connected with the second belt pulley through belt transmission.

Compared with the prior art, the invention has the beneficial effects that:

1. in this sewage floater processing apparatus based on flocculation precipitation, through the stirring leaf that sets up, the stirring leaf is when conveniently flocculating throwing in, can accelerate the mixing of flocculating agent and floater granule through the stirring of stirring leaf, has effectively improved the flocculation precipitation efficiency of sewage floater.

2. In this sewage floater processing apparatus based on flocculation precipitation, through the sedimentation zone of setting, through the conveying motor that passes through that sets up at the sedimentation zone, drag driving shaft, first driven shaft and second driven shaft synchronous revolution simultaneously by conveying motor, make the spiral leaf promote the sediment and discharge from the drain, effectively improved blowdown efficiency.

3. In this sewage floater processing apparatus based on flocculation precipitation, through the inclined baffle that sets up, can separate the precipitate backward flow through the inclined baffle that sets up and upwards remove, can effectively prevent the flocculation that stirring leaf stirring produced and flow and make the precipitate rise and cause secondary pollution's problem.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1;

fig. 2 is a schematic view of the structure of the stirring section of example 1;

fig. 3 is an enlarged schematic view of structure a of embodiment 1;

FIG. 4 is a schematic view of the supporting seat of embodiment 1;

FIG. 5 is a schematic view of the structure of the stirring blade of example 1;

FIG. 6 is a schematic view showing a partial structure of a stirring blade in example 1;

FIG. 7 is a schematic view of the drug storage member of embodiment 1;

FIG. 8 is a schematic plan view showing the overall structure of embodiment 1;

FIG. 9 is one of the partial sectional views of the structure of embodiment 1;

FIG. 10 is a second partial sectional view of the structure of embodiment 1;

FIG. 11 is a schematic diagram of the structure of the precipitation zone of example 1;

FIG. 12 is a schematic view of the seal structure of embodiment 1;

FIG. 13 is a schematic cross-sectional structure of the precipitation zone of example 1;

FIG. 14 is a schematic top plan view of the settling zone of example 1;

fig. 15 is a schematic diagram of the mounting structure of the conveying motor of embodiment 1;

fig. 16 is a schematic view of a driving shaft transmission connection structure of embodiment 1.

The meaning of each reference sign in the figure is:

1. a housing; 101. a flocculation reaction zone; 1011. a filter screen; 102. an inclined partition plate; 103. a purified water outlet;

2. a stirring section; 201. a support base; 2011. a shaft hole; 2012. positioning holes; 2013. a chute; 202. a stirring member; 2021. stirring the leaves; 20211. a dosing hole; 20212. a medicine storage tank; 20213. a first fixing hole; 2022. a drug storage member; 20221. a top base; 20222. a medicine bag; 20223. a second fixing hole; 2023. a stirring shaft; 203. a stirring motor; 204. a support arm; 2041. a positioning groove;

3. a precipitation zone; 301. a settling zone; 302. a sludge chamber; 3021. a driving shaft; 3022. spiral leaves; 3023. a double groove pulley; 303. a seal; 3031. a sealing plug; 3032. a connecting rod; 3033. a mounting hole; 304. a conveying motor; 305. a first driven shaft; 3051. a first pulley; 306. a second driven shaft; 3061. a second pulley; 307. a belt.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

Referring to fig. 1 to 7, the present invention aims to provide a sewage float treatment apparatus based on flocculation precipitation, which comprises a housing 1, and a stirring part 2 and a precipitation zone 3 installed in the housing 1:

the stirring part 2 at least comprises a supporting seat 201, a shaft hole 2011 is formed in the upper surface of the supporting seat 201 near the edge of one end, a stirring motor 203 is fixedly arranged on the upper surface of the supporting seat 201, an output shaft of the stirring motor 203 is coaxially connected with a stirring piece 202 through the shaft hole 2011, at least a stirring blade 2021 is included in the stirring piece 202, the stirring blade 2021 stretches into sewage until the sewage completely floods the stirring blade 2021, a stirring shaft 2023 is fixedly connected to the top of the stirring blade 2021, an output shaft of the stirring motor 203 is coaxially connected with the stirring shaft 2023, a medicine storage tank 20212 is formed in the top of the stirring blade 2021, a first fixing hole 20213 is formed in the top of the stirring blade 2021 near the peripheral edge of the medicine storage tank 20212, a medicine storage piece 2022 is fixedly arranged in the medicine storage tank 20212, an I-shaped chute 2013 is formed in the surface of the right side wall of the supporting seat 201, a positioning hole communicated with the chute 2013 is formed in the upper surface of the supporting seat 201, a bolt 2012 is fixed to the top 204 in the chute 2013 through the positioning hole, and limit of the supporting arm 2012 is fixed to the supporting arm 2012 is realized through the bolt 2012, and the limit of the supporting arm 2 is fixed;

when the stirring part 2 of this embodiment is specifically used, the filled ferrous sulfate is used as a flocculating agent to be filled into the medicine bag 20222, the motor of the stirring motor 203 is powered, the stirring motor 203 operates, the stirring blade 2021 rotates along with the output shaft of the motor in the flocculation reaction area 101, the flocculating agent gradually seeps out from the dosing holes 20211 along with the rotation of the stirring blade 2021, the flocculating agent enables the colloid and the dispersed particles of the suspended matters to generate floccules under the interaction of molecular force, and the floccules collide with each other and agglomerate in the sedimentation process, the size and the mass of the floccules are continuously increased, the sedimentation speed is continuously increased, and the rotating stirring blade 2021 accelerates the mixing of the flocculating agent and the suspended matters, so as to improve the flocculation sedimentation efficiency.

The sedimentation zone 3 at least comprises a sedimentation zone 301, a cylindrical sludge chamber 302 is arranged at the bottom of the sedimentation zone 301, at least three sludge chambers 302 are arranged, a driving shaft 3021, a first driven shaft 305 and a second driven shaft 306 are fixedly arranged in the three inner sludge chambers 302 respectively, spiral blades 3022 are fixedly arranged on the driving shaft 3021, the first driven shaft 305 and the second driven shaft 306, a double-groove belt pulley 3023 is fixedly arranged at one end of the driving shaft 3021, a first belt pulley 3051 is fixedly arranged at one end of the first driven shaft 305, a second belt pulley 3061 is fixedly arranged at one end of the second driven shaft 306, a conveying motor 304 is coaxially connected to the driving shaft 3021, the first driven shaft 305 and the second driven shaft 306 are synchronously rotated through the conveying motor 304, sealing pieces 303 are fixedly arranged at the opening at one end of the sludge chamber 302, sealing pieces 3031 are at least arranged in the sealing pieces, the sealing pieces 3031 are fixedly connected through connecting rods 3032, and a plurality of mounting holes 3033 are formed in the side wall surfaces of the connecting rods 3032, and the sealing plugs 3031 are fixedly arranged through the mounting holes 3031;

when the sedimentation zone 3 of this embodiment is specifically used, suspended matter particles fully reacted in the flocculation reaction zone 101 enter the sedimentation zone 3 through the inclined partition plate 102, flocculated sediments are gradually precipitated by the sedimentation zone 301 and finally accumulated in the sludge chamber 302, when the sediments in the sludge chamber 302 need to be cleaned and discharged, the sealing element 303 at the discharge port is removed, the conveying motor 304 is powered, the conveying motor 304 operates, the output shaft of the conveying motor 304 drives the driving shaft 3021 to rotate, the first driven shaft 305 and the second driven shaft 306 are driven by a belt, the first driven shaft 305 and the second driven shaft 306 synchronously rotate with the driving shaft 3021 and drive the spiral blade 3022 to rotate, the smart waste water outlet of the sediments in the sludge chamber 302 is pushed by the spiral blade 3022 to discharge, and purified water after precipitation is discharged from the purified water outlet 103.

Example 2

Referring to fig. 8-16, the present invention is directed to a sewage floating material treatment device based on flocculation and precipitation, which comprises a housing 1, wherein supporting arms 204 are fixedly installed on two sides of a top opening of the housing 1, a filter screen 1011 is fixedly installed on a position, close to the top, of an inner cavity side wall of the housing 1, a flocculation reaction area 101 is arranged between the housing 1 and the filter screen 1011, an inclined partition plate 102 is fixedly installed on a position, close to the bottom of the filter screen 1011, of an inner cavity side wall of the housing 1, a water purifying outlet 103 is formed on a position, close to the bottom of the inclined partition plate 102, of the side wall of the housing 1, and a filter screen is arranged on the water purifying outlet 103 for blocking precipitates from being discharged along with water flow.

Wherein, the medicine storage part 2022 at least comprises a top seat 20221, a second fixing hole 20223 is formed on the upper surface of the top seat 20221 near the peripheral edge, a medicine bag 20222 is fixedly connected to the lower surface of the top seat 20221, the size of the medicine bag 20222 is matched with the size of the medicine storage groove 20212, and the medicine bag 20222 can be mounted in the medicine storage groove 20212.

Further, the medicine storage part 2022 is connected with the first fixing hole 20213 of the medicine storage groove 20212 by screw threads, and the medicine bag 20222 can be filled with flocculating agents such as ferrous sulfate, so that the colloid and the dispersed particles of the suspended matters generate floccules under the interaction of molecular force by filling the flocculating agents, and the floccules collide with each other and agglomerate in the sedimentation process, so that the size and the mass of the medicine storage part are continuously increased, and the sedimentation speed is continuously increased.

Still further, stirring leaf 2021 is provided with three at least, and three stirring leaf 2021 distributes along the annular array in (mixing) shaft 2023 centre of a circle, and stirring leaf 2021 is oar formula rectangle stirring leaf, can accelerate the reaction of flocculating agent through stirring leaf 2021 that sets up, improves the flocculating agent and flows precipitation efficiency, when stirring, conveniently stores the flocculating agent raw materials.

In addition, positioning grooves 2041 are formed in the upper and lower side surfaces of the supporting arm 204, the supporting arm 204 is of an I-shaped structure, the supporting seat 201 is nested and fixed with the supporting arm 204 through sliding grooves 2013, and further, in order to ensure stability of the stirring portion 2 on the supporting arm 204, at least two supporting arms 204 are arranged, and the number of the sliding grooves 2013 of the supporting seat 201 is the same as that of the supporting arms 204.

In addition, the inclined partition plates 102 incline downwards by 10-15 degrees, a plurality of inclined partition plates 102 are arranged, a plurality of inclined partition plates 102 are stacked up and down, a gap is reserved between the two inclined partition plates 102, sediment can be prevented from flowing back upwards through the inclined partition plates 102, and the sediment and water flow downwards move through the gap between the two inclined partition plates 102.

Specifically, the size of the sealing plug 3031 is matched with the size of the opening of the sludge chamber 302, the sealing plug 3031 is inserted into the opening of the sludge chamber 302 to seal the opening of the sludge chamber 302, the sealing plug 3031 is fixedly connected with the side wall of the sludge chamber 302 through the mounting hole 3033, a screw hole matched with the mounting hole 3033 is formed in the side wall of the sludge chamber 302, the sealing plug 3031 is conveniently fixed, and one end opening of the sludge chamber 302 is set as a sewage outlet to realize the discharge of sediment through the opening of the sludge chamber 302.

Further, the dual-grooved pulley 3023 is horizontally aligned with the first pulley 3051, and the dual-grooved pulley 3023 is in transmission connection with the first pulley 3051 through the belt 307, and the driving shaft 3021 drags the first driven shaft 305 to synchronously rotate through the belt 307.

The double-groove belt pulley 3023 is horizontally aligned with the second belt pulley 3061, the double-groove belt pulley 3023 is in transmission connection with the second belt pulley 3061 through a belt 307, and the driving shaft 3021 drags the second driven shaft 306 to synchronously rotate through the belt 307, so that rotation of the spiral blade 3022 is achieved, and the spiral blade 3022 pushes sediment in the sludge chamber 302 to be discharged from a sewage outlet.

Specifically, the stirring motor 203 may be a vertical stirrer with the model number BLD10-17-0.75 KW.

Further, the transport motor 304 may be a three-phase asynchronous motor model YE 2-355-8.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Sewage floater processing apparatus based on flocculation precipitation, its characterized in that: comprises a shell (1), and a stirring part (2) and a sedimentation zone (3) which are arranged in the shell (1): the stirring part (2) at least comprises a supporting seat (201), a shaft hole (2011) is formed in the upper surface of the supporting seat (201) close to one end edge, a stirring motor (203) is fixedly arranged on the upper surface of the supporting seat (201), a stirring piece (202) is coaxially connected to an output shaft of the stirring motor (203) through the shaft hole (2011), at least a stirring blade (2021) is arranged in the stirring piece (202), a stirring shaft (2023) is fixedly connected to the top of the stirring blade (2021), a medicine storage groove (20212) is formed in the top of the stirring blade (2021), a first fixing hole (20213) is formed in the periphery edge of the top of the stirring blade (2021) close to the medicine storage groove (20212), a medicine storage piece (2022) is fixedly arranged in the medicine storage groove (20212), a medicine administration hole (20211) communicated with the medicine storage groove (20212) is formed in the side wall surface of the stirring blade (2021), an I-shaped chute (2023) is formed in the right side wall surface of the supporting seat (201), and a chute (2012) is formed in the position of the supporting seat (201); the sedimentation device comprises a sedimentation zone (3), wherein the sedimentation zone (3) at least comprises a sedimentation zone (301), a cylindrical sludge chamber (302) is formed in the bottom of the sedimentation zone (301), at least three sludge chambers (302) are arranged, a driving shaft (3021), a first driven shaft (305) and a second driven shaft (306) are fixedly arranged in the three sludge chambers (302) respectively, spiral blades (3022) are fixedly arranged on the driving shaft (3021), a double-groove belt pulley (3023) is fixedly arranged at one end of the driving shaft (3021), a first belt pulley (3051) is fixedly arranged at one end of the first driven shaft (305), a second belt pulley (3061) is fixedly arranged at one end of the second driven shaft (306), a conveying motor (304) is coaxially connected to the driving shaft (3021), a sealing piece (303) is fixedly arranged at one end opening of the sludge chamber (302), at least three sealing plugs (3031) are arranged in the sealing piece (303), and a plurality of sealing plug holes (3031) are fixedly connected with the surface of the connecting rod (3032); support arms (204) are fixedly arranged on two sides of a top leaning opening of the shell (1), a filter screen (1011) is fixedly arranged on the side wall of the inner cavity of the shell (1) close to the top, an inclined partition plate (102) is fixedly arranged on the side wall of the inner cavity of the shell (1) close to the bottom of the filter screen (1011), and a purified water outlet (103) is formed on the side wall of the shell (1) close to the bottom of the inclined partition plate (102); the medicine storage part (2022) at least comprises a top seat (20221), a second fixing hole (20223) is formed in the position, close to the peripheral edge, of the upper surface of the top seat (20221), a medicine bag (20222) is fixedly connected to the lower surface of the top seat (20221), and the size of the medicine bag (20222) is matched with that of the medicine storage groove (20212); the medicine storage part (2022) is connected with the first fixing hole (20213) of the medicine storage groove (20212) through screw threads through a second fixing hole (20223), and the medicine bag (20222) can be filled with ferrous sulfate flocculant.

2. The flocculation precipitation based sewage float treatment apparatus as claimed in claim 1, wherein: the stirring blades (2021) are at least three, the three stirring blades (2021) are distributed in an annular array along the center of the stirring shaft (2023), and the stirring blades (2021) are paddle-type rectangular stirring blades.

3. A flocculation precipitation based sewage float treatment device according to claim 2, wherein: positioning grooves (2041) are formed in the surfaces of the upper side and the lower side of the supporting arm (204), the supporting arm (204) is of an I-shaped structure, and the supporting seat (201) is nested and fixed with the supporting arm (204) through the sliding groove (2013).

4. A flocculation precipitation based sewage float treatment device as claimed in claim 3, wherein: the inclined partition plates (102) incline downwards by 10-15 degrees, the inclined partition plates (102) are provided with a plurality of inclined partition plates (102) which are stacked up and down, and gaps are reserved between the two inclined partition plates (102).

5. The flocculation-precipitation-based sewage floater treating apparatus as claimed in claim 4, wherein: the size of the sealing plug (3031) is matched with the size of the opening of the sludge chamber (302), the sealing plug (3031) is fixedly connected with the side wall of the sludge chamber (302) through the mounting hole (3033), and one end opening of the sludge chamber (302) is provided with a sewage outlet.

6. The flocculation-precipitation-based sewage floater treating apparatus as claimed in claim 5, wherein: the dual groove pulley (3023) is horizontally aligned with the first pulley (3051), and the dual groove pulley (3023) is drivingly connected to the first pulley (3051) by a belt (307).

7. The flocculation-precipitation-based sewage floater treating apparatus as claimed in claim 6, wherein: the dual groove pulley (3023) is horizontally aligned with the second pulley (3061), and the dual groove pulley (3023) is drivingly connected to the second pulley (3061) by a belt (307).