CN113979522B - Environment-friendly sewage treatment precipitation device - Google Patents

Abstract

The invention discloses an environmentally friendly sewage treatment sedimentation device, which includes a water inlet pipe, a box, a flocculation mechanism, a stirring mechanism, a cleaning mechanism, and a water outlet pipe; the water inlet pipe is located on one side of the box; the flocculation mechanism is located on one end of the box; and the stirring mechanism It is located on one side of the flocculation mechanism; the cleaning mechanism is located on the side of the stirring mechanism; the outlet pipe is located on one side of the box; the box includes through slot I, through slot II, through slot III, and wall slot; through slot I is located on the box body One end; through-slot II is located on one side of through-slot I; through-slot III is located on one side of through-slot II; and wall groove is located on one side of the box. The present invention controls the amount and speed of addition of flocculant according to the amount of sewage treated and the content of impurities in the sewage. It has a good stirring effect on sewage at different locations and completes the mixing without shutdown conditions. Cleaning up flocculation sedimentation.

Description

An environmentally friendly sewage treatment sedimentation device

Technical field

The invention belongs to the technical field of sewage treatment, and particularly relates to an environmentally friendly sewage treatment sedimentation device.

Background technique

Factories produce a large amount of sewage during production and processing. Harmful substances need to be treated before the sewage is discharged to avoid discharging harmful substances directly into the water and polluting water resources. Sewage treatment equipment is a kind of equipment that can effectively deal with life in urban areas. Industrial equipment for sewage, industrial wastewater, etc. prevents sewage and pollutants from flowing directly into waters, which is of great significance to improving the ecological environment, enhancing urban quality, and promoting economic development; existing sewage treatment sedimentation devices have the following problems during use:

1) In existing sewage treatment, adding flocculant during the sedimentation process often requires manual addition multiple times, and the amount and speed of adding flocculant cannot be controlled. This method causes a large amount of waste of flocculant, and the treatment effect is poor when the impurity content of sewage is different. Different, and the concentrated and large amount of addition causes the flocculant to be unable to fully mix with the sewage in a short time, reducing the sewage sedimentation efficiency;

2) In the existing sewage treatment sedimentation device, during the mixing process of sewage and flocculant, a motor is usually used to drive the stirring fin to accelerate the mixing of flocculant and other chemicals with sewage to improve the sewage sedimentation efficiency. However, in this method, the motor and the stirring fin are The position is relatively fixed, resulting in different actual mixing effects at different liquid level heights and ranges, and uneven mixing of sewage and flocculant;

3) When the flocculated sediment is discharged, it is usually discharged from the sewage outlet after shutdown. This method seriously affects the continuous treatment of sewage and the sewage treatment efficiency is not ideal.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide an environmentally friendly sewage treatment sedimentation device. According to the different amounts of sewage being treated and the content of impurities in the sewage, the amount and speed of addition of the flocculant are controlled, and different amounts of flocculants are added. The sewage at all locations has good stirring effect, and there is no need to complete the cleaning of flocculation sedimentation under shutdown conditions.

In order to achieve the above objects, the technical solution adopted by the present invention is:

An environmentally friendly sewage treatment sedimentation device includes a water inlet pipe, a box, a flocculation mechanism, a stirring mechanism, a cleaning mechanism, and an outlet pipe; the water inlet pipe is located on one side of the box; the flocculation mechanism is located on one end of the box; The stirring mechanism is located on one side of the flocculation mechanism; the cleaning mechanism is located on one side of the stirring mechanism; and the water outlet pipe is located on one side of the box.

The box body includes a through slot I, a through slot II, a through slot III, and a wall slot; the through slot I is located at one end of the box; the through slot II is located at one side of the through slot I; and the through slot III is located at one end of the box body. On the side of the through slot II; the wall slot is located on the side of the box.

The flocculation mechanism includes a flocculation box, a box cover, a handle I, a flip plate, a fixed block I, a fixed block II, a tension spring I, a partition, a screen, and a handle II; one end of the flocculation box is provided with a box cover; There is a handle I on one side of the box cover; a flip plate is rotatably connected to the bottom of the flocculation box; a fixing block I is set on one side of the flip plate; a fixing block II is set on one side of the flip plate; the fixing block I passes The tension spring I is fixedly connected to the stirring mechanism; the fixed block II is fixedly connected to the inner wall of the flocculation box through the tension spring; the bottom of the flocculation box is provided with a partition; one end of the partition is provided with a handle II; one end of the screen is fixedly connected to The upper wall of the box and the other end are fixedly connected to the stirring mechanism; the screen material is made of soft plastic; after the flocculant is added to the flocculation box, the partitions are adjusted according to the amount of sewage processed and the impurity content of the sewage to limit flocculation. According to the adding speed and amount of the flocculant, the flip plate completes the repetitive process of opening and closing driven by the tension spring and the stirring mechanism. According to the sinking depth of the stirring mechanism, the speed and amount of the flocculant is determined, and the screen The net disperses the flocculant in advance and ensures the contact area between the flocculant and the sewage.

The stirring mechanism includes a support frame, a cylinder, a supporting plate, a motor I, a tension spring II, a stirring shaft, a fixed ring, a rotating groove, a rotating ring, a sleeve, a fixed frame, a lower stirring rod, an upper stirring rod, a fixed pin, and a pulley. Spring III; the support frame is fixed on the box; two cylinders are fixedly connected to the fixed frame; one end of the cylinder is fixedly connected to the supporting plate; the supporting plate is fixedly connected to the motor I; the motor Ⅰ Rotately connect the stirring shaft; one end of the stirring shaft is fixedly connected to the fixing frame; the stirring shaft is slidably connected to a sleeve; the sleeve is provided with a fixed ring; the side wall of the fixed ring is provided with a rotation groove; The rotating groove is slidingly connected to the rotating ring; a lower stirring rod and an upper stirring rod are rotationally connected to the fixed frame; the lower stirring rod is rotationally connected to the upper stirring rod through a fixed pin; a tension spring II is provided on the rotating ring; One end of the tension spring II is fixed on the box; a tension spring III is provided between the fixed frames; the cylinder drives the supporting plate to rise and fall, making the stirring shaft and stirring fins penetrate into the sewage, and at the same time drives the flocculation mechanism to sprinkle the flocculant, stirring During the descending process of the fin, depending on the size of the sedimentation area, under the action of tension spring II and tension spring III, the upper and lower stirring rods will move closer to the stirring shaft to complete the full mixing of flocculation and sewage in different areas. .

The cleaning mechanism includes a limit ring, a winch, a motor II, a rotating shaft I, a rotating shaft II, a rotating shaft III, a rotating shaft IV, a stroke groove II, a stroke groove I, a spring rod, a fixed rod, a rotating rod, and a discharge plate. , conveyor belt, screen basket, baffle, splint, bevel gear, motor III, upper spring plate, lower spring plate; the top of the box is equipped with a limit ring, the number is two; the top of the box is equipped with a motor II ; The side of the motor II is provided with a winch; the side wall of the box is provided with a stroke groove I and a stroke groove II; the stroke groove I is provided with a rotating shaft I; the winch is fixed after passing through the limit ring Connect the two ends of the rotating shaft I; the rotating shaft II is provided in the stroke groove II; a spring rod is fixed on one side of the rotating shaft II; the rotating shaft I is provided with two fixed rods; the fixed rod The rod is connected to the unloading plate by rotating the rotating rod; a rotating axis III is provided on one side of the rotating axis I; a rotating axis IV is arranged on one side of the rotating axis III; a motor III is arranged on one end of the rotating axis IV; the motor III is connected through bevel gears and rotation shaft IV; the rotation axis I, rotation axis II, rotation axis III and rotation axis IV are connected through conveyor; the conveyor belt is evenly distributed on the screen basket; both sides of the conveyor belt A splint is provided; one end of the splint is fixed on the box; a baffle is provided on one side of the splint, and both sides of the baffle are fixedly connected to the inner wall of the box; an upper spring plate and a lower spring plate are fixed on one end of the splint; The upper spring plate is fixed on the inner wall of the box; the debris precipitated by the flocculant falls on the upper part of the conveyor belt, and the screen basket picks up the sediment under the operation of the conveyor belt and passes it through the narrow closed space composed of baffles and splints. In the space, under the action of gravity and water pressure, sediments accumulate faster, and the turbulence area during the rise is limited to a closed area, which will not affect the supernatant. Secondly, depending on the amount of sewage treated, the supernatant The liquid height is also different. At this time, the winch can be adjusted to make the rotating shaft I rise or fall in the stroke groove. Correspondingly, the spring rod drives the rotating shaft II to rise or fall, keeping the conveyor belt in a tensioned state. At the same time, the rotating shaft I Drive the discharge plate to adjust its position so that the fishing basket is always at the appropriate height when dumping sediment without affecting the state of the supernatant.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1) The flocculation mechanism includes a turning plate, fixed block I, fixed block II, tension spring I, partitions, and screens; after the flocculant is added to the flocculation box, the partitions are adjusted to limit the amount of sewage processed and the impurity content of the sewage. The speed and amount of flocculant added, the flip plate is driven by the tension spring and the stirring mechanism to complete the repetitive process of opening and closing. According to the sinking depth of the stirring mechanism, the speed and amount of flocculant is determined. The screen disperses the flocculant in advance and ensures the contact area between the flocculant and the sewage;

2) The mixing mechanism includes a fixed ring, a rotating groove, a rotating ring, a fixed frame, and a tension spring III; the cylinder drives the supporting plate to rise and fall, making the stirring shaft and stirring fins go deep into the sewage, and at the same time drives the flocculation mechanism to sprinkle flocculant, and the stirring fins are in the During the descending process, depending on the size of the sedimentation area, under the action of tension spring II and tension spring III, the upper and lower stirring rods will move closer to the stirring shaft to complete the full mixing of flocculation and sewage in different areas;

3) The cleaning mechanism includes stroke groove II, stroke groove I, spring rod, conveyor belt, screen basket, baffle, and splint; the debris precipitated by the flocculant falls on the upper part of the conveyor belt, and the screen basket is moved under the operation of the conveyor belt. The sediment is picked up, and in the small closed space composed of baffles and splints, the sediment accumulates faster under the action of gravity and water pressure, and the turbulence area during the ascent is limited to the closed area, which will not affect the Supernatant liquid; secondly, the height of the supernatant liquid is also different depending on the amount of sewage treated. At this time, the winch can be adjusted to make the rotating shaft I rise or fall in the stroke groove. Correspondingly, the spring rod drives the rotating shaft II to rise or fall. , the conveyor belt is always kept in a tensioned state, and at the same time, the rotating shaft I drives the discharge plate to adjust its position, so that the fishing basket is always at the appropriate height when dumping sediment without affecting the state of the supernatant.

Description of drawings

Figure 1 is a schematic structural diagram of an environmentally friendly sewage treatment sedimentation device according to the present invention;

Figure 2 is a schematic diagram of the internal structure of an environmentally friendly sewage treatment sedimentation device according to the present invention;

Figure 3 is a schematic diagram of the internal structure of an environmentally friendly sewage treatment sedimentation device according to the present invention;

Figure 4 is a schematic structural diagram of the flocculation mechanism and stirring mechanism in an environmentally friendly sewage treatment sedimentation device according to the present invention;

Figure 5 is a cross-sectional view of the flocculation mechanism in an environmentally friendly sewage treatment sedimentation device according to the present invention;

Figure 6 is a schematic structural diagram of the flocculation mechanism in an environmentally friendly sewage treatment sedimentation device according to the present invention;

Figure 7 is a schematic structural diagram of the stirring mechanism in an environmentally friendly sewage treatment sedimentation device according to the present invention;

Figure 8 is a schematic structural diagram of the fixed ring of the stirring mechanism in an environmentally friendly sewage treatment sedimentation device according to the present invention;

In the picture: 1. Water inlet pipe; 2. Box; 201. Channel I; 202, Channel II; 203, Channel III; 204, wall channel; 3. flocculation mechanism; 301, flocculation box; 302, box cover ; 303. Handle Ⅰ; 304. Flip plate; 305. Fixed block Ⅰ; 306. Fixed block Ⅱ; 307. Tension spring Ⅰ; 308. Partition plate; 309. Screen; 310. Handle Ⅱ; 4. Stirring mechanism; 401 , support frame; 402, cylinder; 403, supporting plate; 404, motor I; 405, tension spring II; 406, stirring shaft; 407, fixed ring; 408, rotating groove; 409, rotating ring; 410, sleeve; 411 , fixed frame; 412, lower mixing rod; 413, upper mixing rod; 414, fixed pin; 415, tension spring III; 5. cleaning mechanism; 501, limit ring; 502, winch; 503, motor II; 504, rotation Shaft I; 505, rotating shaft II; 506, rotating shaft III; 507, rotating shaft IV; 508, stroke groove II; 509, stroke groove I; 510, spring rod; 511, fixed rod; 512, rotating rod; 513. Unloading plate; 514, conveyor belt; 515, screen basket; 516, baffle; 517, splint; 518, bevel gear; 519, motor III; 520, upper spring plate; 521, lower spring plate; 6, outlet pipe.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings 1-8.

An environmentally friendly sewage treatment sedimentation device, including a water inlet pipe 1, a box 2, a flocculation mechanism 3, a stirring mechanism 4, a cleaning mechanism 5, and an outlet pipe 6; the water inlet pipe 1 is located on one side of the box 2; the flocculation mechanism 3 is located at one end of the box 2; the stirring mechanism 4 is located at the flocculation mechanism 3 side; the cleaning mechanism 5 is located at the stirring mechanism 4 side; the water outlet pipe 6 is located at the box 2 side.

The box 2 includes a through slot I201, a through slot II202, a through slot III203, and a wall groove 204; the through slot I201 is located at one end of the box 2; the through channel II202 is located at one side of the through slot I201; The groove III 203 is provided on one side of the through groove II 202; the wall groove 204 is provided on one side of the box 2.

The flocculation mechanism 3 includes a flocculation box 301, a box cover 302, a handle I303, a flip plate 304, a fixed block I305, a fixed block II306, a tension spring I307, a partition 308, a screen 309, and a handle II310; one end of the flocculation box 301 A box cover 302 is provided; a handle I303 is provided on one side of the box cover 302; a flip plate 304 is rotatably connected to the bottom of the flocculation box 301; a fixing block I305 is provided on one side of the flip plate 304; the flip plate 304 is A fixed block II 306 is provided on the side; the fixed block I 305 is fixedly connected to the stirring mechanism 4 through a tension spring I 307; the fixed block II 306 is fixedly connected to the inner wall of the flocculation box 301 through a tension spring; a partition 308 is provided at the bottom of the flocculation box 301; so One end of the partition 308 is provided with a handle II 310; one end of the screen 309 is fixedly connected to the upper wall of the box 2, and the other end is fixedly connected to the stirring mechanism 4; the material of the screen 309 is soft plastic; flocculant is added After the flocculation box 301, according to the amount of sewage processed and the impurity content of the sewage, the partition 308 is adjusted to limit the adding speed and amount of flocculant. The flip plate 304 is driven by the tension spring and the stirring mechanism 4 to complete the opening and closing. A repetitive process, according to the sinking depth of the stirring mechanism 4, the speed and amount of spreading the flocculant are determined. The screen 309 disperses the flocculant in advance and ensures the contact area between the flocculant and the sewage.

The stirring mechanism 4 includes a support frame 401, a cylinder 402, a supporting plate 403, a motor I 404, a tension spring II 405, a stirring shaft 406, a fixed ring 407, a rotating groove 408, a rotating ring 409, a sleeve 410, a fixed frame 411, and a lower stirring Rod 412, upper mixing rod 413, fixed pin 414, tension spring III 415; the support frame 401 is fixed on the box 2; the fixed frame 411 is fixedly connected with a cylinder 402, the number is two; one end of the cylinder 402 The supporting plate 403 is fixedly connected; the supporting plate 403 is fixedly connected to the motor I 404; the motor I 404 is rotatably connected to the stirring shaft 406; one end of the stirring shaft 406 is fixedly connected to the fixing frame 411; and the stirring shaft 406 is slidably connected to a sleeve 410 ; The sleeve 410 is provided with a fixed ring 407; the side wall of the fixed ring 407 is provided with a rotating groove 408; the rotating groove 408 is slidingly connected to the rotating ring 409; the fixed frame 411 is rotationally connected to a lower stirring rod 412 and the upper stirring rod 413; the lower stirring rod 412 is rotationally connected to the upper stirring rod 413 through a fixed pin 414; the rotating ring 409 is provided with a tension spring II 405; one end of the tension spring II 405 is fixed on the box 2; There is a tension spring III 415 between the fixed frames 411; the cylinder 402 drives the supporting plate 403 to rise and fall, so that the stirring shaft 406 and the stirring fins go deep into the sewage, and at the same time drive the flocculation mechanism 3 to sprinkle the flocculant. During the descending process of the stirring fins, Depending on the size of the sedimentation area, under the action of tension spring II 405 and tension spring III 415, the upper stirring rod 413 and the lower stirring rod 412 will move closer to the stirring shaft 406 to complete the full mixing of flocculation and sewage in different areas.

The cleaning mechanism 5 includes a limit ring 501, a hoist 502, a motor II 503, a rotating shaft I 504, a rotating shaft II 505, a rotating shaft III 506, a rotating shaft IV 507, a stroke groove II 508, a stroke groove I 509, a spring rod 510, a fixed rod 511, and a rotating shaft. Rod 512, unloading plate 513, conveyor belt 514, screen basket 515, baffle 516, clamping plate 517, bevel gear 518, motor III 519, upper spring plate 520, lower spring plate 521; the top of the box 2 is provided with a limit ring 501, the number is two; the top of the box 2 is provided with a motor II 503; one side of the motor II 503 is provided with a hoist 502; the side wall of the box 2 is provided with a stroke groove I 509 and a stroke groove II 508; the stroke The groove I 509 is provided with a rotating shaft I 504; the hoist 502 passes through the limit ring 501 and is fixedly connected to both ends of the rotating shaft I 504; the stroke groove II 508 is provided with a rotating shaft II 505; one side of the rotating shaft II 505 is fixed with a spring Rod 510; the rotating shaft I 504 is provided with two fixed rods 511; the fixed rod 511 is rotatably connected to the discharge plate 513 through the rotating rod 512; a rotating shaft III 506 is provided on one side of the rotating shaft I 504; so One side of the rotating shaft III 506 is provided with a rotating shaft IV 507; one end of the rotating shaft IV 507 is provided with a motor III 519; the motor III 519 is rotationally connected to the rotating shaft IV 507 through a bevel gear 518; the rotating shaft I 504, the rotating shaft II 505, the rotating shaft III506 and rotating shaft IV507 are connected through conveyor; the conveyor belt 514 is evenly distributed on the screen basket 515; the conveyor belt 514 is provided with splints 517 on both sides; one end of the splint 517 is fixed on the box 2; the splint 517 is provided with a baffle 516 on one side, and both sides of the baffle 516 are fixedly connected to the inner wall of the box 2; an upper spring plate 520 and a lower spring plate 521 are fixed on one end of the clamping plate 517; the upper spring plate 520 is fixed on the box 2 on the inner wall; the debris precipitated by the flocculant falls on the upper part of the conveyor belt 514, and the screen basket 515 picks up the sediment under the operation of the conveyor belt 514. In the small closed space composed of the baffle 516 and the splint 517, Under the action of gravity and water pressure, sediments accumulate faster, and the turbulent area during the rise is limited to a closed area, which will not affect the supernatant liquid. Secondly, depending on the amount of sewage treated, the height of the supernatant liquid also varies. Differently, the winch 502 can be adjusted at this time to make the rotating shaft I 504 rise or fall in the stroke groove. Correspondingly, the spring rod 510 drives the rotating shaft II 505 to rise or fall, keeping the conveyor belt 514 in a tensioned state. At the same time, the rotating shaft I 504 Drive the discharge plate to adjust its position so that the fishing basket is always at the appropriate height when dumping sediment without affecting the state of the supernatant.

An environmentally friendly sewage treatment sedimentation device. The working principle is as follows: after the flocculant is added to the flocculation box, the partition is adjusted according to the amount of treated sewage and the impurity content of the sewage to limit the addition speed and amount of the flocculant. The flip plate is in tension spring Driven by the stirring mechanism, the repetitive process of opening and closing is completed. According to the sinking depth of the stirring mechanism, the speed and amount of spreading the flocculant are determined. The screen disperses the flocculant in advance and ensures the separation of the flocculant and the sewage. contact area, the cylinder drives the supporting plate up and down, making the stirring shaft and stirring fins go deep into the sewage, and at the same time drives the flocculation mechanism to sprinkle the flocculant. During the descending process of the stirring fins, according to the size of the sedimentation area, the tension spring II and the tension spring Under the action of III, the upper and lower stirring rods will move closer to the stirring shaft to complete the full mixing of flocculation and sewage in different areas; the debris precipitated by the flocculant will fall on the upper part of the conveyor belt, and the screen basket will be on the upper part of the conveyor belt. During operation, the sediment is picked up, and in the small closed space composed of baffles and splints, the sediment accumulates faster under the action of gravity and water pressure, and the turbulence area during the ascent is limited to the closed area. , will not affect the supernatant liquid; secondly, the height of the supernatant liquid is also different depending on the amount of sewage treated. At this time, the winch can be adjusted to make the rotating shaft I rise or fall in the stroke groove. Correspondingly, the spring rod drives the rotating shaft Ⅱ rises or falls to keep the conveyor belt in a tensioned state. At the same time, the rotating shaft Ⅰ drives the discharge plate to adjust its position so that the fishing basket is always at the appropriate height when dumping sediment without affecting the state of the supernatant.

The above contents are only examples and descriptions of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or substitute them in similar ways, as long as they do not deviate from the structure of the invention. or beyond the scope defined by the claims, shall belong to the protection scope of the present invention.

Claims (2)

1. An environment-friendly sewage treatment sedimentation device comprises a water inlet pipe, a box body, a flocculation mechanism, a stirring mechanism, a cleaning mechanism and a water outlet pipe; the water inlet pipe is arranged at one side of the box body; the flocculation mechanism is arranged at one end of the box body; the stirring mechanism is arranged at one side of the flocculation mechanism; the cleaning mechanism is arranged at one side of the stirring mechanism; the water outlet pipe is arranged at one side of the box body; the box body comprises a through groove I, a through groove II, a through groove III and a wall groove; the through groove I is arranged at one end of the box body; the through groove II is arranged at one side of the through groove I; the through groove III is arranged at one side of the through groove II; the wall groove is arranged at one side of the box body;

the flocculation mechanism comprises a flocculation box, a box cover, a handle I, a turnover plate, a fixed block I, a fixed block II, a tension spring I, a partition plate, a screen, and a handle II; one end of the flocculation box is provided with a box cover; a handle I is arranged on one side of the box cover; the bottom of the flocculation box is rotatably connected with a turnover plate; a fixed block I is arranged on one side of the turnover plate; a fixed block II is arranged on one side of the turnover plate; the fixed block I is fixedly connected with the stirring mechanism through a tension spring I; the fixed block II is fixedly connected with the inner wall of the flocculation box through a tension spring; a partition board is arranged at the bottom of the flocculation tank; one end of the partition board is provided with a handle II; one end of the screen is fixedly connected to the upper wall of the box body, and the other end of the screen is fixedly connected to the stirring mechanism; the screen mesh is made of soft plastic;

the cleaning mechanism comprises a limiting ring, a winch, a motor II, a rotating shaft I, a rotating shaft II, a rotating shaft III, a rotating shaft IV, a travel groove II, a travel groove I, a spring rod, a fixed rod, a rotating rod, a stripper plate, a conveying belt, a screen basket, a baffle plate, a clamping plate, a bevel gear, a motor III, an upper spring plate and a lower spring plate; the top end of the box body is provided with two limit rings; a motor II is arranged at the top end of the box body; a winch is arranged at one side of the motor II; a travel groove I and a travel groove II are formed in the side wall of the box body; a rotating shaft I is arranged in the travel groove I; the winch passes through the limiting ring and is fixedly connected with two ends of the rotating shaft I; a rotating shaft II is arranged in the travel groove II; a spring rod is fixed on one side of the rotating shaft II; the number of the fixing rods is two; the fixed rod is rotationally connected with the stripper plate through a rotating rod; a rotating shaft III is arranged on one side of the rotating shaft I; a rotating shaft IV is arranged on one side of the rotating shaft III; a motor III is arranged at one end of the rotating shaft IV; the motor III is rotationally connected with the rotating shaft IV through a bevel gear; the rotating shafts I, II, III and IV are connected through a conveying belt; the conveying belt is uniformly provided with a sieve basket; clamping plates are arranged on two sides of the conveying belt; one end of the clamping plate is fixed on the box body; a baffle is arranged on one side of the clamping plate, and two sides of the baffle are fixedly connected to the inner wall of the box body; an upper spring plate and a lower spring plate are fixed at one end of the clamping plate; the upper spring plate is fixed on the inner wall of the box body;

sundries precipitated by the flocculant fall on the upper part of a conveyer belt, a screen basket drags out the sediment under the operation of the conveyer belt, the sediment is piled up more quickly under the action of gravity and water pressure in a narrow closed space formed by a baffle plate and a clamping plate, and a turbulent flow area is limited in a closed area in the rising process, so that supernatant cannot be influenced; according to the difference of handling sewage, the supernatant liquid height is also different, but adjustable hoist engine this moment makes axis of rotation I rise or descend in the travel groove, and correspondingly, the spring beam drives axis of rotation II and rises or descend, keeps the conveyer belt in tensioning state all the time, and axis of rotation I drives the stripper simultaneously and carries out position control, makes drag for the basket when empting the deposit, is at suitable height all the time, and does not influence supernatant liquid state.

2. The environment-friendly sewage treatment sedimentation device according to claim 1, wherein the stirring mechanism comprises a supporting frame, a cylinder, a supporting plate, a motor I, a tension spring II, a stirring shaft, a fixed ring, a rotating groove, a rotating ring, a sleeve, a fixed frame, a lower stirring rod, an upper stirring rod, a fixed pin and a tension spring III; the supporting frame is fixed on the box body; the fixed mount is fixedly connected with two cylinders; one end of the air cylinder is fixedly connected with the supporting plate; the supporting plate is fixedly connected with a motor I; the motor I is rotationally connected with the stirring shaft; one end of the stirring shaft is fixedly connected with the fixing frame; the stirring shaft is connected with a sleeve in a sliding manner; the sleeve is provided with a fixing ring; a rotating groove is formed in the side wall of the fixed ring; the rotating groove is connected with the rotating ring in a sliding manner; the fixing frame is rotationally connected with a lower stirring rod and an upper stirring rod; the lower stirring rod is rotationally connected with the upper stirring rod through a fixing pin; the rotating ring is provided with a tension spring II; one end of the tension spring II is fixed on the box body; a tension spring III is arranged between the fixing frames.