CN113477119A

CN113477119A - Sewage treatment device

Info

Publication number: CN113477119A
Application number: CN202110717646.1A
Authority: CN
Inventors: 周杏; 李帅
Original assignee: Beijing North Tianying Technology Co ltd
Current assignee: Beijing North Tianying Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-10-08

Abstract

The invention discloses a sewage treatment device, which relates to the field of sewage treatment and particularly discloses a sewage treatment device, which comprises a flocculation cabin main body, wherein the flocculation cabin main body comprises a first flocculation cabin, a second flocculation cabin and a third flocculation cabin which are sequentially arranged from top to bottom, a first stirring device, a second stirring device and a third stirring device are respectively arranged in the first flocculation cabin, the second flocculation cabin and the third flocculation cabin, and the stirring speed of the first stirring device, the stirring speed of the second stirring device and the stirring speed of the third stirring device are sequentially reduced. The invention is provided with three-stage flocculation cabins, each flocculation cabin is provided with a stirring device, and the stirring devices of the three-stage flocculation cabins are set to different stirring speeds, so that quick and efficient flocculation can be realized.

Description

Sewage treatment device

Technical Field

The invention relates to the field of sewage treatment, in particular to a sewage treatment device.

Background

The flocculation treatment of sewage is that proper flocculant is added into sewage to make it adsorb particles and bridge between particles to promote aggregation and form floc, so that the goal of solid-liquid separation is reached.

In the prior art, stirring is usually needed in the sewage flocculation process, however, the stirring effect in the prior art is not ideal, the sewage cannot be fully contacted with the flocculating agent, the stirring speeds required in the sewage flocculation process are different, different stirring speeds cannot be provided for flocculation processes at different stages in the sewage flocculation process in the prior art, and accurate and efficient flocculation cannot be realized; meanwhile, the flocculated sediments in the sedimentation bin are easy to attach to the side wall of the cabin and difficult to clean, and the final flocculation efficiency and effect are influenced.

Disclosure of Invention

In order to solve the defects of the prior art, the present invention provides a sewage treatment device to solve the technical problems in the background art.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a sewage treatment plant, includes flocculation storehouse main part, flocculation storehouse main part includes first flocculation cabin, second flocculation cabin and the third flocculation cabin that from the top down set gradually, set up first agitating unit, second agitating unit and third agitating unit in first flocculation cabin, second flocculation cabin and the third flocculation cabin respectively, wherein, the stirring speed of first agitating unit, the stirring speed of second device and third agitating unit's stirring speed reduce in proper order.

Optionally, first flocculation cabin includes sewage entry, flocculating agent entry and first agitating unit, sewage entry and flocculating agent entry set up respectively in first flocculation cabin top both sides, first agitating unit is including setting up the first motor mount at the top middle part in first flocculation cabin, the first motor of fixed mounting in the first motor mount, the first pivot of first motor output end fixed mounting, first puddler is evenly installed in the week side of first pivot in vertical direction, evenly be provided with the thin pole of stirring that the slope set up on the first puddler.

Optionally, be provided with second agitating unit in the second flocculation cabin, second agitating unit is including setting up the second motor mount in second flocculation cabin bottom, second motor mount internal fixation has the second motor, second motor output fixed mounting second pivot, the week side of second pivot evenly installs the second puddler in vertical direction, the second puddler is close to the one end of second pivot is the cylinder form, the second puddler is kept away from the one end of second pivot is the platykurtic, the rotation direction of first pivot is opposite with the rotation direction of second pivot.

Optionally, a third stirring rod is further mounted on the second rotating shaft, the third stirring rod is arranged on the upper side of the second stirring rod, four third stirring rods are symmetrically arranged about the center of the second rotating shaft, the third stirring rod is arranged in an L shape, the bottom end of the third stirring rod is cylindrical, and the top end of the third stirring rod is flat; and the top end of the third stirring rod upwards extends into the first flocculation bin and is positioned on the outer peripheral side of the first stirring rod.

Optionally, third flocculation cabin inboard is provided with third agitating unit, third agitating unit is including setting up the third motor mount in the third flocculation cabin, third motor mount internal fixation has the third motor, third motor output fixed mounting third pivot, third pivot bilateral symmetry are provided with two fourth puddlers, the fourth puddler is L shape setting, the lateral wall setting in third flocculation cabin is hugged closely to the vertical section of fourth puddler, the inboard of the vertical section of fourth puddler is fixed with strip magnet, and the just right direction magnetic pole of the strip magnet that sets up on two fourth puddlers is opposite.

Optionally, the bottom in first flocculation cabin is provided with the filter screen, the top and the bottom of filter screen are fixed mounting bearing respectively, the bearing is used for supporting first pivot and second pivot respectively, still set up on the filter screen and put the ring channel, the ring channel with the third puddler phase-match.

Optionally, a partition plate is arranged at the bottom of the second flocculation chamber, a second motor fixing frame and a third motor fixing frame are respectively and fixedly mounted at the top and the bottom of the partition plate, and a discharge valve is further arranged on the partition plate.

Optionally, a floc discharge port is arranged on one side of the bottom of the third flocculation chamber, and a treated water discharge port is arranged on one side of the bottom end of the first flocculation chamber.

Optionally, a base is fixed to the bottom of the flocculation bin main body, and an anti-skid layer is arranged at the bottom of the base.

The invention has the following beneficial effects:

1. the invention is provided with three-stage flocculation cabins, each flocculation cabin is provided with a stirring device, and the stirring devices of the three-stage flocculation cabins are set to different stirring speeds, so that quick and efficient flocculation can be realized.

2. According to the invention, the first stirring device is arranged in the first flocculation cabin, and the first stirring device is provided with the uniformly distributed fine stirring rods, so that sewage can be dispersed more favorably in the rapid stirring process, and finer water flow can be formed, so that a flocculating agent and the sewage are fully mixed; simultaneously include first agitating unit and second agitating unit simultaneously in first flocculation storehouse, two agitating unit's rotation opposite direction for sewage forms the convection current, can be better with keeping away from the sewage dispersion of central point position in the first flocculation storehouse, further promotes flocculating agent and sewage intensive mixing.

3. According to the invention, the third stirring device is arranged in the third flocculation chamber, the strip-shaped magnet is arranged on the third stirring device, the strip-shaped magnet rotates to form a magnetic field, and the added flocculating agent is a magnetic flocculating agent, so that a formed larger floc is magnetic through the flocculation process of the first flocculation chamber and the second flocculation chamber, and the magnetic floc slowly rotates under the action of the third stirring device and the magnetic field, so that the magnetic floc is further promoted to contact with solids in sewage for flocculation, and the flocculation effect is improved; simultaneously, the lateral wall setting in third flocculation cabin is hugged closely to the fourth puddler, can strike off the deposit in third flocculation cabin lateral wall, the clearance in third flocculation cabin of being convenient for.

Drawings

FIG. 1 is a front view of the overall mechanism of the present invention;

FIG. 2 is a cross-sectional view of the integrated mechanism of the present invention;

FIG. 3 is a top view of the filter screen of the present invention;

FIG. 4 is a schematic view of a third stirring rod of the present invention;

in the figure, 1, a flocculation bin main body; 2. a first flocculation chamber; 3. a second flocculation chamber; 4. a third flocculation chamber; 5. a sewage inlet; 6. a flocculant inlet; 7. a first motor mount; 8. a first motor; 9. a first rotating shaft; 10. a first stirring rod; 11. stirring the thin rod; 12. a second motor mount; 13. a second motor; 14. a second rotating shaft; 15. a second stirring rod; 16. a third stirring rod; 17. a third motor fixing frame; 18. a third motor; 19. a third rotating shaft; 20. a fourth stirring rod; 21. a strip magnet; 22. a filter screen; 23. an annular groove; 24. a partition plate; 25. a discharge valve 26, a flock outlet; 27. a treated water discharge port; 28. a base.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

Furthermore, the terms "substantially", and the like are intended to indicate that the relative terms are not necessarily strictly required, but may have some deviation. For example: "substantially equal" does not mean absolute equality, but because absolute equality is difficult to achieve in actual production and operation, certain deviations generally exist. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

According to the attached figures 1-2, the sewage treatment device comprises a flocculation cabin body 1, wherein the flocculation cabin body 1 comprises a first flocculation cabin 2, a second flocculation cabin 3 and a third flocculation cabin 4 which are sequentially arranged from top to bottom, and a first stirring device, a second stirring device and a third stirring device are respectively arranged in the first flocculation cabin 2, the second flocculation cabin 3 and the third flocculation cabin 4. Wherein, first flocculation cabin 2 includes sewage entry 5 and flocculating agent entry 6, sewage entry 5 and flocculating agent entry 6 set up respectively in 2 top both sides in first flocculation cabin, add first flocculation cabin 2 with sewage from sewage entry 5 before sewage treatment, simultaneously, through flocculating agent entry 6 to adding magnetic flocculant in first flocculation cabin 2, wherein, the flow ratio of magnetic flocculant and sewage is 0.04, and in the actual work, this flow ratio can be adjusted by oneself according to sewage situation and magnetic flocculant kind.

First flocculation cabin 2 still includes first agitating unit, first agitating unit is including setting up the first motor mount 7 at the top middle part of first flocculation cabin 2, the first motor 8 of fixed mounting in the first motor mount 7, first motor 8 output end fixed mounting first pivot 9, the bearing that the bottom of first pivot 9 and first flocculation cabin 2 bottom set up cooperatees, and first puddler 10 is evenly installed to week side of first pivot 9 in vertical direction, evenly be provided with the stirring pin 11 that the slope set up on the first puddler 10, wherein, the stirring pin 11 that even and slope set up more does benefit to the sewage dispersion at high-speed pivoted in-process, can form more tiny rivers for flocculating agent and the abundant mixture of sewage, the preliminary formation of the flocculation of being convenient for. The stirring speed of first agitating unit, the stirring speed of second device and third agitating unit reduces in proper order, and first agitating unit has the highest stirring speed, cooperates the disturbance of the stirring slender stick 11 of intensive slope, does benefit to the preliminary reaction of flocculation very much for the flocculating agent forms less flocculation particle with sewage.

Referring to the attached drawings 1-2, a second stirring device is arranged in the second flocculation chamber 3, the second stirring device includes a second rotating shaft 14, a second stirring rod 15 and a third stirring rod 16 are mounted on the second rotating shaft 14, the third stirring rod 16 is arranged on the upper side of the second stirring rod 15, four third stirring rods 16 are symmetrically arranged on the second rotating shaft 14 about the center, the third stirring rod 16 is arranged in an L shape, the bottom end of the third stirring rod 16 is cylindrical, and the top end of the third stirring rod 16 is flat; and the top end of the third stirring rod 16 extends upwards into the first flocculation bin and is positioned at the periphery side of the first stirring rod 10. First agitating unit stirring direction is opposite with second agitating unit's stirring direction, consequently, reverse rotation simultaneously of first puddler 10 and third puddler 16 can make sewage form the convection current, can be better with the sewage disturbance of keeping away from central point in the first flocculation storehouse, the dispersion, further promote flocculating agent and sewage intensive mixing, and the reverse stirring of first puddler 10 and third puddler 16, can further accelerate the stirring speed in the first flocculation cabin 2, do benefit to the preliminary reaction of flocculation.

Referring to fig. 3, a filter screen 22 is disposed at the bottom of the first flocculation chamber 2, bearings are respectively and fixedly mounted at the top end and the bottom end of the filter screen 22, the bearings are respectively used for supporting the first rotating shaft 9 and the second rotating shaft 14, an annular groove 23 is further formed in the filter screen 22, and the annular groove 23 is matched with the third stirring rod 16. Bearings are respectively and fixedly arranged at the top end and the bottom end of the filter screen 22, so that the first rotating shaft 9 and the second rotating shaft 14 can be stably supported, and the two rotating shafts can rotate more stably; can tentatively filter great foreign particle and the impurity that can't flocculate in the sewage through setting up filter screen 22, great foreign particle and the impurity that can't flocculate are unfavorable for going on of flocculation, and make the wadding group of preliminary flocculation broken up easily. Wherein, the annular groove 23 formed on the filter screen is beneficial to the rotation of the third stirring rod 16.

Referring to the attached drawings 1-2, a second stirring device is arranged in the second flocculation chamber 3, the second stirring device includes a second motor fixing frame 12 arranged at the bottom of the second flocculation chamber 3, a second motor 13 is fixed in the second motor fixing frame 12, a second rotating shaft 14 is fixedly installed at the output end of the second motor 13, second stirring rods 15 are uniformly installed on the peripheral side of the second rotating shaft 14 in the vertical direction, one end of each second stirring rod 15 close to the second rotating shaft 14 is cylindrical, and one end of each second stirring rod 15 far away from the second rotating shaft 14 is flat. Through the preliminary less flocculation particle of flocculating in first flocculation cabin 2 can enter into second flocculation cabin 3 in, carry out further flocculation, second puddler 15 sets up to keeping away from the platykurtic of the one end of second pivot 14, this stirring structure compare with the first puddler 10 on the stirring pin 11 that sets up, the structure of platykurtic can disturb bigger strand rivers when rotating, and can not break up rivers easily, prevent to break up just flocculating the less flocculation particle that generates. And the rotational speed of second puddler 15 is less than the rotational speed of first puddler 10 for second puddler 15 is more steady at the pivoted in-process, does benefit to further flocculation of less flocculation particle, forms great flocculation particle.

Referring to the attached fig. 1-2, the bottom of the second flocculation chamber 3 is provided with a partition 24, the partition 24 is also provided with a discharge valve 25, after the first flocculation chamber 2 and the first flocculation chamber 2 flocculate for a period of time, the discharge valve 25 is opened, and the sewage enters the third flocculation chamber 4 for further flocculation.

Referring to the attached drawings 1-4, a third stirring device is arranged on the inner side of the third flocculation chamber 4, the third stirring device comprises a third motor fixing frame 17 arranged in the third flocculation chamber 4, a third motor 18 is fixed in the third motor fixing frame 17, a third rotating shaft 19 is fixedly installed at the output end of the third motor 18, two fourth stirring rods 20 are symmetrically arranged on the left and right of the third rotating shaft 19, the fourth stirring rods 20 are arranged in an L shape, the vertical sections of the fourth stirring rods 20 are tightly attached to the side wall of the third flocculation chamber 4, strip magnets 21 are fixed on the inner sides of the vertical sections of the fourth stirring rods 20, and the opposite magnetic poles of the direction of the strip magnets 21 arranged on the two fourth stirring rods 20 are opposite. The fourth stirring device is provided with a strip magnet 21, the strip magnet 21 rotates to form a magnetic field, and the added flocculating agent is a magnetic flocculating agent, so that the formed larger flocculating particles have magnetism in the flocculation process of the first flocculation chamber and the second flocculation chamber 3, and the magnetic flocculating particles slowly rotate under the action of the fourth stirring device and the rotating magnetic field, so that the magnetic flocculation groups are further promoted to contact and flocculate with the solid in the sewage, the flocculation effect is improved, and the larger flocculation groups are further formed; meanwhile, the fourth stirring rod 20 is tightly attached to the side wall of the third flocculation chamber 4, so that the sediment on the side wall of the third flocculation chamber 4 can be scraped, and the third flocculation chamber 4 can be cleaned conveniently.

Referring to fig. 1-2, a floc discharge port 26 is provided on one side of the bottom of the third flocculation chamber 4, and a treated water discharge port 27 is provided on one side of the bottom end of the first flocculation chamber 2, so that after the flocculation reaction is completed, the floc is discharged through the floc discharge port 26, and simultaneously, the clear water after the flocculation reaction is discharged through the treated water discharge port 27.

The working process is as follows: before sewage treatment, sewage is added into a first flocculation cabin 2 from a sewage inlet 5, meanwhile, a magnetic flocculant is added into the first flocculation cabin 2 through a flocculant inlet 6, a first motor 8 and a second motor 13 are started, a first stirring device and a second stirring device work simultaneously, the stirring speed of the first stirring device is higher than that of the second device, the stirring direction of the first stirring device is opposite to that of the second stirring device, and a first stirring rod 10 and a third stirring rod 16 rotate reversely in the first flocculation cabin 2 at the same time, so that the sewage forms convection, the sewage far away from the central position in the first flocculation cabin is disturbed and dispersed better, and the flocculant and the sewage are promoted to be fully mixed; stirring pin 11's setting on first puddler 10 simultaneously, can be high-speed pivoted in-process, better with sewage dispersion, can form more tiny rivers, make flocculating agent and the abundant mixture of sewage, tentatively form less flocculation particle, the flocculation particle passes filter screen 22 and gets into second flocculation cabin 3, carry out further flocculation, form great flocculation particle, open discharge valve 25, sewage gets into and further flocculates in the third flocculation cabin 4, under the effect of third agitating unit and rotating magnetic field, magnetic flocculation particle will be slow rotary motion, further make the solid contact flocculation of magnetic floccule and sewage, improve the flocculation effect, further form the bigger flocculation group of volume. Simultaneously, the lateral wall setting in third flocculation chamber 4 is hugged closely to fourth puddler 20, can strike off the deposit in 4 lateral walls in third flocculation chamber, and the clearance in the third flocculation chamber 4 of being convenient for improves final flocculation effect indirectly. After the flocculation reaction is completed, the floc is discharged through the floc discharge port 26, and at the same time, the clear water after the flocculation reaction is discharged through the treated water discharge port 27.

The foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.

Claims

1. The utility model provides a sewage treatment plant, its characterized in that, includes flocculation storehouse main part (1), flocculation storehouse main part (1) includes first flocculation cabin (2), second flocculation cabin (3) and third flocculation cabin (4) that from the top down set gradually, set up first agitating unit, second agitating unit and third agitating unit in first flocculation cabin (2), second flocculation cabin (3) and third flocculation cabin (4) respectively, wherein, the stirring speed of first agitating unit, the stirring speed of second device and third agitating unit's stirring speed reduce in proper order.

2. The sewage treatment device according to claim 1, wherein the first flocculation chamber (2) comprises a sewage inlet (5), a flocculant inlet (6) and a first stirring device, the sewage inlet (5) and the flocculant inlet (6) are respectively arranged at two sides of the top end of the first flocculation chamber (2), the first stirring device comprises a first motor fixing frame (7) arranged at the middle part of the top end of the first flocculation chamber (2), a first motor (8) is fixedly arranged in the first motor fixing frame (7), a first rotating shaft (9) is fixedly arranged at the output end of the first motor (8), a first stirring rod (10) is uniformly arranged at the peripheral side of the first rotating shaft (9) in the vertical direction, and a fine stirring rod (11) which is obliquely arranged is uniformly arranged on the first stirring rod (10).

3. The sewage treatment device according to claim 2, wherein a second stirring device is arranged in the second flocculation chamber (3), the second stirring device comprises a second motor fixing frame (12) arranged at the bottom of the second flocculation chamber (3), a second motor (13) is fixed in the second motor fixing frame (12), a second rotating shaft (14) is fixedly installed at the output end of the second motor (13), second stirring rods (15) are uniformly installed on the peripheral side of the second rotating shaft (14) in the vertical direction, one end of each second stirring rod (15) close to the second rotating shaft (14) is cylindrical, one end of each second stirring rod (15) far away from the second rotating shaft (14) is flat, and the rotating direction of the first rotating shaft (9) is opposite to that of the second rotating shaft (14).

4. The sewage treatment device according to claim 3, wherein a third stirring rod (16) is further mounted on the second rotating shaft (14), the third stirring rod (16) is arranged on the upper side of the second stirring rod (15), four third stirring rods (16) are symmetrically arranged around the center of the second rotating shaft (14), the third stirring rod (16) is arranged in an L shape, the bottom end of the third stirring rod (16) is cylindrical, the top end of the third stirring rod (16) is flat, and the top end of the third stirring rod (16) extends upwards into the first flocculation bin and is located on the outer peripheral side of the first stirring rod (10).

5. Sewage treatment plant according to claim 4, characterised in that inside said third flocculation chamber (4) there is arranged a third agitation means, the third stirring device comprises a third motor fixing frame (17) arranged in a third flocculation cabin (4), a third motor (18) is fixed in the third motor fixing frame (17), a third rotating shaft (19) is fixedly installed at the output end of the third motor (18), two fourth stirring rods (20) are symmetrically arranged on the left and right of the third rotating shaft (19), the fourth stirring rod (20) is arranged in an L shape, the vertical section of the fourth stirring rod (20) is tightly attached to the side wall of the third flocculation chamber (4), a strip magnet (21) is fixed on the inner side of the vertical section of the fourth stirring rod (20), and the opposite direction magnetic poles of the strip magnets (21) arranged on the two fourth stirring rods (20) are opposite.

6. The sewage treatment device according to claim 4, wherein a filter screen (22) is arranged at the bottom of the first flocculation chamber (2), bearings are respectively and fixedly arranged at the top end and the bottom end of the filter screen (22), the bearings are respectively used for supporting the first rotating shaft (9) and the second rotating shaft (14), an annular groove (23) is further formed in the filter screen (22), and the annular groove (23) is matched with the third stirring rod (16).

7. The sewage treatment device according to claim 5, wherein a partition plate (24) is arranged at the bottom of the second flocculation chamber (3), a second motor fixing frame (12) and a third motor fixing frame (17) are respectively fixedly arranged at the top and the bottom of the partition plate (24), and a discharge valve (25) is further arranged on the partition plate (24).

8. The wastewater treatment apparatus according to claim 5, wherein the third flocculation chamber (4) is provided with a floc discharge outlet (26) at the bottom side thereof, and the first flocculation chamber (2) is provided with a treated water discharge outlet (27) at the bottom side thereof.

9. The sewage treatment device according to claim 1, wherein a base (28) is fixed at the bottom of the flocculation bin main body (1), and an anti-skid layer is arranged at the bottom of the base (28).