Air floatation sewage treatment machine

Abstract

The invention discloses an air floatation sewage treatment machine, and relates to the technical field of sewage treatment equipment, the air floatation sewage treatment machine comprises a machine body, the machine body is internally provided with a conveying mechanism for stirring scum; a main cleaning mechanism for vibration discharging is arranged in the conveying mechanism, the main cleaning mechanism comprises bases symmetrically distributed on the two sides of each shovel plate, elastic connecting pieces are fixedly installed at the ends of the bases, and the bases are connected to the ends of the shovel plates through the elastic connecting pieces; an auxiliary cleaning mechanism for further improving the discharging rate is further arranged in the conveying mechanism. The main cleaning mechanism and the auxiliary cleaning mechanism are driven by the conveying mechanism to move horizontally, the main cleaning mechanism shakes while moving, the auxiliary cleaning mechanism is turned over, and therefore salvage and cleaning of scum are further completed. The air floatation sewage treatment machine disclosed by the invention has the effects of high treatment efficiency and more comprehensive and perfect operation.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, and in particular to an air flotation sewage treatment machine. Background Art

[0002] The flotation machine is a water treatment equipment that produces a large number of fine bubbles in the water by a dissolved air system, so that the air is attached to the suspended particles in the form of highly dispersed tiny bubbles, resulting in a state with a density less than that of water. The buoyancy principle is used to make it float on the water surface, thereby achieving solid-liquid separation. The flotation machine is used in water supply, industrial wastewater and urban sewage treatment. The advantage of the flotation machine is that it is a solid-liquid separation equipment with low investment, extremely small floor space, high degree of automation, and easy operation and management.

[0003] During the operation of the flotation machine, a number of scraper structures driven by chains and tracks are installed on the top of the machine body. The scrapers are used to salvage the scum floating on the liquid surface to the sludge collection area at the end. However, the running trajectory of the scraper is horizontal movement from one end of the equipment to the distribution end of the sludge collection area. As the scraper gets closer to the sludge collection area, the scum accumulated at the end of the scraper will become thicker. At this time, a part of the scum will remain at the bottom of the scraper and below the liquid surface and will not be salvaged. After the scraper completes the salvage of a single scum, a large amount of scum will adhere to the surface. As the scraper rotates, the adhered scum will be brought back into the equipment again, which leads to disadvantages in use. Summary of the invention

[0004] The invention discloses an air flotation sewage treatment machine, which aims to solve the technical problem that in the existing air flotation sewage treatment machine, as the scraper gets closer to the sludge collection area during operation, the scum accumulated at the end of the scraper becomes thicker, and the bottom of the scraper and the area below the liquid surface are not fully salvaged at this time, and after the scraper completes the salvage of a single scum, a large amount of scum will adhere to the surface, and along with the rotation of the scraper, the adhered scum will be brought back into the equipment again, thus resulting in technical disadvantages in use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A flotation sewage treatment machine comprises a machine body, wherein a conveying mechanism for moving scum is arranged inside the machine body, wherein the conveying mechanism comprises two crawlers symmetrically distributed inside the machine body, wherein rotating shafts are symmetrically sleeved at both ends of the crawlers, wherein the rotating shafts are rotatably mounted inside the machine body, wherein a plurality of evenly distributed connecting plates are fixedly mounted between the two crawlers, and a shovel plate for scraping scum is distributed below each connecting plate;

[0007] A main cleaning mechanism for vibrating and unloading is arranged inside the conveying mechanism, and the main cleaning mechanism includes bases symmetrically distributed on both sides of each shovel plate, and elastic connectors are fixedly installed at the ends of the bases and connected to the ends of the shovel plates through the elastic connectors;

[0008] The conveying mechanism is also provided with a secondary cleaning mechanism for further improving the material discharge rate, the secondary cleaning mechanism comprising a back plate fixed to the side of each connecting plate, and a scraper is rotatably mounted on the bottom of the back plate;

[0009] The main cleaning mechanism and the auxiliary cleaning mechanism are driven by the conveying mechanism to move horizontally. During the movement, the main cleaning mechanism shakes and the auxiliary cleaning mechanism folds, thereby further completing the salvage and cleaning of the scum.

[0010] By arranging a conveying mechanism inside the machine body, the conveying mechanism is used to drive the main cleaning mechanism to move horizontally. The moving main cleaning mechanism can scrape the scum above the liquid surface, driving the scum to move in a specified direction. When the main cleaning mechanism completes the discharge of the scum, it can shake itself, so as to clean up the scum adhering to the outside. Along with the movement of the main cleaning mechanism, the auxiliary cleaning mechanism located on the side of the main cleaning mechanism can operate synchronously. When the main cleaning mechanism drives the scum and the scum layer is thick, the auxiliary cleaning mechanism can immerse itself below the liquid surface to scoop up the scum at the bottom, thereby cooperating with the operation of the main cleaning mechanism to further improve the cleaning efficiency of the equipment.

[0011] In a preferred embodiment, the conveying mechanism also includes two rotating shafts of different sizes, so that the rotating crawler drives the connecting plate to move tiltably, and a first motor is installed on the outside of the machine body, and the output end of the first motor horizontally penetrates into the interior of the machine body and is connected to the end of one of the rotating shafts.

[0012] By providing a rotating shaft structure driven by the first motor, the rotating shaft is used to drive the crawler to rotate. At the same time, the two rotating shafts sleeved on the crawler are of different sizes, so that the crawler drives the connecting plate and the shovel plate to move tiltedly. The shovel plate moves close to the liquid surface, thereby adapting to the thickness of the slag scraped by the shovel plate, improving the slag scooping effect, and further ensuring the integrity of the operation of this equipment and the work efficiency.

[0013] In a preferred embodiment, the main cleaning mechanism also includes a rubber wheel rotatably installed inside the base, and limiting grooves are symmetrically opened on both sides of the inner wall of the body, and a number of evenly distributed pads are fixed at the end of each limiting groove, and a number of bases and rubber wheels located on the same side are slidably connected to the inside of the limiting groove and form an extrusion contact with the pads.

[0014] By setting a base structure connected by an elastic connecting piece at the end of the shovel plate, the base is driven to move synchronously by the track, and the rubber wheel located inside the base will move synchronously along the inside of the limiting groove, so as to adapt to the moving path of the shovel plate. While the shovel plate completes the removal of the scum, the base and the rubber wheel can utilize the expansion and contraction of the elastic connecting piece to continuously squeeze and collide with the pad inside the limiting groove, thereby generating vibration force and transmitting it to the shovel plate, and utilizing the vibration of the shovel plate to shake off the adhered scum, thereby further improving the processing efficiency of the equipment.

[0015] In a preferred embodiment, the auxiliary cleaning mechanism also includes a plurality of elastic connecting rods distributed between the back plate and the scraper, and the two ends of the elastic connecting rods are respectively rotatably connected to the back plate and the scraper, and a mud shovel plate is fixedly installed inside the body, and the mud shovel plate is distributed at the end of the crawler, and the moving scraper is in extrusion contact with the mud shovel plate.

[0016] By additionally arranging a back plate and a scraper on the side of the shovel plate, when the shovel plate moves, the back plate and the scraper plate will not come into contact with the scum above the liquid surface. When the shovel plate is driven by the crawler track to rotate, the back plate and the scraper plate on the side of the shovel plate will rotate synchronously, so that the scraper plate is inserted below the liquid surface to salvage the scum below the liquid surface, and the rotation of the crawler track is coordinated to drive the scraper plate to flip, close to the side of the shovel plate and salvage the scum below the liquid surface, thereby cooperating with the shovel plate to remove the scum on the liquid surface, thereby improving the processing effect of the equipment.

[0017] In a preferred embodiment, a reaction zone and an air flotation contact zone are symmetrically provided at one end of the machine body, the reaction zone and the air flotation contact zone are internally connected, PAC flocculant and PAM coagulant aid are added to the reaction zone, a separation zone is provided in the middle of the machine body, the conveying mechanism is distributed inside the separation zone, the separation zone and the air flotation contact zone are internally connected, and a clear water tank is provided at the other end of the machine body, the clear water tank and the interior of the separation zone are internally connected.

[0018] The sewage introduced into the body is preliminarily flocculated by setting a reaction zone with built-in PAC flocculant and PAM coagulant aid, and the flocculated sewage is introduced into the air flotation contact zone. A large number of bubbles in the air flotation contact zone are attached to the flocculated suspended matter, driving the suspended matter into the separation zone and floating to form scum, thereby cooperating with the operation of the conveying mechanism, the main cleaning mechanism and the auxiliary cleaning mechanism to complete the sewage treatment work and ensure the integrity of the operation of this equipment.

[0019] In a preferred embodiment, a reflux pipe is connected between the clean water tank and the separation zone, an air dissolving pump and an air dissolving tank are installed in the middle of the reflux pipe, and the air dissolving tank is vertically distributed on the top of the air dissolving pump.

[0020] By providing a reflux pipe connected to the clean water tank and the separation zone, part of the clean water inside the clean water tank is redirected back to the separation zone through the reflux pipe. The refluxed clean water will be processed by the dissolved air pump and the dissolved air tank, and will become dissolved air water by mixing with compressed air and reattach to the suspended matter after flocculation, thereby ensuring the integrity of the cyclic operation of this equipment.

[0021] As can be seen from the above, the flotation sewage treatment machine provided by the present invention has the following improvements and advantages compared with the prior art:

[0022] The first is that a rotating shaft structure driven by a first motor is provided inside the machine body, and the rotating shaft is used to drive the crawler to rotate. At the same time, the two rotating shafts sleeved on the crawler are of different sizes, so that the crawler drives the connecting plate and the shovel plate to tilt and move. The shovel plate moves while getting close to the liquid surface, thereby adapting to the thickness of the scum scraped by the shovel plate and improving the slag scooping effect. A base structure connected by an elastic connecting piece is additionally provided at the end of the shovel plate. When the crawler drives the base to move synchronously, the rubber wheel located inside the base will move along the inside of the limiting groove, thereby adapting to the moving path of the shovel plate. When the shovel plate completes the shoveling of the scum, the base and the rubber wheel can utilize the expansion and contraction of the elastic connecting piece to continuously squeeze and collide with the pad block inside the limiting groove, thereby generating vibration force and transmitting it to the shovel plate, and utilizing the vibration of the shovel plate to shake off the adhered scum, so that the shovel plate has self-cleaning ability and improves the working efficiency of the equipment.

[0023] Secondly, by additionally arranging a back plate and a scraper on the side of the shovel plate, when the shovel plate moves, the back plate and the scraper plate will not come into contact with the scum above the liquid surface. When the shovel plate is driven by the crawler belt to rotate, the back plate and the scraper plate on the side of the shovel plate will rotate synchronously, so that the scraper plate is inserted below the liquid surface. At this time, the scraper plate will salvage the scum below the liquid surface, and drive the scraper plate to flip over in coordination with the rotation of the crawler belt, cling to the side of the shovel plate and fish out the scum below the liquid surface, thereby cooperating with the operation of the shovel plate to complete the removal of the scum on the liquid surface and the scum under the liquid surface, thereby ensuring the integrity of the operation of the equipment and greatly improving the treatment effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an air flotation sewage treatment machine proposed by the present invention.

[0025] Figure 2 This is a side sectional view of the overall structure of an air flotation sewage treatment machine proposed by the present invention.

[0026] Figure 3 This is a cross-sectional view of the overall structure of an air flotation sewage treatment machine proposed by the present invention.

[0027] Figure 4This is an exploded diagram of the conveying mechanism structure of an air flotation sewage treatment machine proposed by the present invention.

[0028] Figure 5 The present invention provides a flotation sewage treatment machine Figure 4 A magnified view of the structure at center.

[0029] Figure 6 This is a structural schematic diagram of the auxiliary cleaning mechanism of the flotation sewage treatment machine proposed by the present invention.

[0030] Figure 7 This is an exploded view of the surrounding structure of the shovel plate of the flotation sewage treatment machine proposed by the present invention.

[0031] Figure 8 This is a side structural sectional view of a shovel plate of an air flotation sewage treatment machine proposed by the present invention.

[0032] Fig. 9 This is a motion state diagram of the shovel plate and back plate of an air flotation sewage treatment machine proposed by the present invention.

[0033] In the figure: 1. body; 2. conveying mechanism; 201. crawler; 202. rotating shaft; 203. first motor; 204. connecting plate; 205. shovel plate; 3. main cleaning mechanism; 301. base; 302. rubber wheel; 303. limit groove; 304. cushion block; 305. latch; 306. torsion spring; 307. elastic connecting piece; 4. auxiliary cleaning mechanism; 401. back plate; 402. scraper; 403. elastic connecting rod; 404. shovel plate; 5. reaction zone; 6. air flotation contact zone; 7. separation zone; 8. clean water tank; 9. second motor; 10. stirring paddle; 11. L-shaped water guide pipe; 12. reflux pipe; 13. dissolved air pump; 14. dissolved air tank; 15. drain pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] The flotation sewage treatment machine disclosed in the present invention is mainly used in sewage treatment scenarios.

[0036] Reference Figures 1 to 9A flotation sewage treatment machine includes a body 1, a conveying mechanism 2 for moving scum is arranged inside the body 1, the conveying mechanism 2 includes two crawlers 201 symmetrically distributed inside the body 1, two ends of the crawlers 201 are symmetrically sleeved with rotating shafts 202, the rotating shafts 202 are rotatably installed inside the body 1, a plurality of evenly distributed connecting plates 204 are fixedly installed between the two crawlers 201, and a shovel plate 205 for scraping scum is distributed under each connecting plate 204;

[0037] A main cleaning mechanism 3 for vibrating and unloading is arranged inside the conveying mechanism 2. The main cleaning mechanism 3 includes bases 301 symmetrically distributed on both sides of each shovel plate 205. An elastic connector 307 is fixedly installed at the end of the base 301 and connected to the end of the shovel plate 205 through the elastic connector 307.

[0038] The conveying mechanism 2 is also provided with a secondary cleaning mechanism 4 for further improving the material discharge rate. The secondary cleaning mechanism 4 includes a back plate 401 fixed to the side of each connecting plate 204, and a scraper 402 is rotatably mounted on the bottom of the back plate 401;

[0039] The main cleaning mechanism 3 and the auxiliary cleaning mechanism 4 are driven by the conveying mechanism 2 to move horizontally. During the movement, the main cleaning mechanism 3 shakes and the auxiliary cleaning mechanism 4 folds, thereby further completing the salvage and cleaning of the scum.

[0040] In this embodiment: when the machine body 1 is running, a large amount of scum will float on the liquid surface. At this time, the conveying mechanism 2 is started, driving the main cleaning mechanism 3 to move slowly in the horizontal direction. When the main cleaning mechanism 3 moves, it will also drive the auxiliary cleaning mechanism 4 to move synchronously, thereby pushing the scum floating on the liquid surface to complete the cleaning of the scum.

[0041] In the above scheme, considering that the scum floating on the liquid surface is cleaned off, the specific operation is as follows.

[0042] Reference Figures 1 to 8 In a preferred embodiment, the conveying mechanism 2 also includes two rotating shafts 202 of different sizes, so that the rotating track 201 drives the connecting plate 204 to move tiltably, and a first motor 203 is installed on the outside of the body 1. The output end of the first motor 203 horizontally penetrates into the interior of the body 1 and is connected to the end of a rotating shaft 202.

[0043] In this embodiment, when the machine body 1 is running, a large amount of scum will float on the liquid surface. At this time, the first motor 203 is started, and the first motor 203 drives the rotating shaft 202 to rotate, and the rotating shaft 202 drives the crawler 201 to rotate synchronously. The rotating crawler 201 drives the shovel plate 205 through the connecting plate 204, so that the shovel plate 205 moves along the liquid surface. When the shovel plate 205 moves, the scum on the liquid surface will be moved synchronously. With the movement of the shovel plate 205, the thickness of the scum layer accumulated on the side of the shovel plate 205 will gradually increase. Since the outer diameters of the crawler 201 at the positions of the two rotating shafts 202 are different (such as Figure 4 As shown in the figure, the outer diameter of the crawler 201 near the auxiliary cleaning mechanism 4 is larger, so the shovel plate 205 moves downward slightly in the vertical direction while moving toward the auxiliary cleaning mechanism 4, thereby matching the thickness of the accumulated slag layer and improving the slag scooping effect.

[0044] In the above scheme, considering that when the shovel plate 205 is turned over, some scum will adhere to the surface of the shovel plate 205 to be processed, the specific operation is as follows.

[0045] Reference Figures 4 to 8 In a preferred embodiment, the main cleaning mechanism 3 also includes a base 301 with a rubber wheel 302 rotatably installed inside, and limiting grooves 303 are symmetrically opened on both sides of the inner wall of the body 1, and a number of evenly distributed pads 304 are fixed at the end of each limiting groove 303. Several bases 301 and rubber wheels 302 located on the same side are slidably connected to the inside of the limiting groove 303 and form an extrusion contact with the pads 304.

[0046] In this embodiment: while the shovel plate 205 moves horizontally, the base 301 and the rubber wheel 302 located at the end of the shovel plate 205 will move synchronously along the inside of the limiting groove 303 until the shovel plate 205 is driven by the track 201 and moves to the rotating shaft 202. As the track 201 continues to rotate, the shovel plate 205 will revolve around the rotating shaft 202 and break away from the contact with the liquid surface. At the same time, the base 301 and the rubber wheel 302 located at the end of the shovel plate 205 will pass over the top of the pad 304. At the same time, the elastic connecting member 307 will contract and then extend, driving the base 301 and the rubber wheel 302 to collide with the inner side of the limiting groove 303 during extension, thereby generating vibration and driving the shovel plate 205 to resonate and shake off the scum adhering to the surface of the shovel plate 205.

[0047] Among them, it should be supplemented that: a number of latches 305 are evenly fixed inside the connecting plate 204, the top of the shovel plate 205 is sleeved on the outside of the latches 305, and a number of torsion springs 306 are fixedly connected between the latches 305 and the shovel plate 205. The torsion springs 306 are used to form an elastic connection between the shovel plate 205 and the connecting plate 204, which can better allow the shovel plate 205 to self-vibrate.

[0048] In the above scheme, considering that as the shovel plate 205 moves, the scum layer accumulated on the side of the shovel plate 205 will become thicker and thicker and accumulate below the liquid surface, the flipped shovel plate 205 can only scrape off the scum above the liquid surface, and the scum below the liquid surface needs to be processed. The specific operations are as follows.

[0049] Reference Figure 4 , Figures 6 to 8 In a preferred embodiment, the auxiliary cleaning mechanism 4 also includes a plurality of elastic connecting rods 403 distributed between the back plate 401 and the scraper 402, and the two ends of the elastic connecting rod 403 are rotatably connected to the back plate 401 and the scraper 402 respectively. A mud shovel board 404 is fixedly installed inside the body 1, and the mud shovel board 404 is distributed at the end of the crawler 201, and the moving scraper 402 is in extrusion contact with the mud shovel board 404.

[0050] In this embodiment, when the shovel board 205 moves horizontally, since the back plate 401 is inclined and the vertical length of the back plate 401 is greater than the length of the shovel board 205, the back plate 401 and the scraper 402 on the side of the shovel board 205 do not come into contact with the liquid surface until the shovel board 205 is driven by the crawler 201 and moves to the rotating shaft 202. As the crawler 201 continues to rotate, the shovel board 205 will revolve around the rotating shaft 202 and break away from the contact with the liquid surface, and move the scum on the liquid surface to the inside of the shovel board 404. At the same time, as the shovel board 205 moves The back plate 401 and the scraper plate 402 rotate synchronously at this time, and the scraper plate 402 is immersed below the liquid surface and pushes the scum below the liquid surface toward the direction of the shoveling plate 404 until the scraper plate 402 and the shoveling plate 404 are squeezed and contacted. At this time, the back plate 401 that continues to rotate pushes the scraper plate 402 to rotate, and the elastic connecting rod 403 shrinks adaptively until the scraper plate 402 passes over the side of the shoveling plate 404, and the scum below the liquid surface is scooped into the inside of the shoveling plate 404. At the same time, the scraper plate 402 that loses the squeezing restriction is pushed by the elastic connecting rod 403 to reset and rotate;

[0051] Among them, the functions of the back plate 401 and the scraper plate 402 are mainly to improve the effect of secondary scum removal, and the salvage range is larger, and the scum dropped during the salvage process of the shovel plate 205 and the scum in the position that cannot be salvaged can be salvaged more fully.

[0052] In the above scheme, considering that in order to make the whole device run cyclically, the specific operations are as follows.

[0053] Reference Figures 1 to 3In a preferred embodiment, a reaction zone 5 and an air flotation contact zone 6 are symmetrically provided at one end of the body 1, the reaction zone 5 and the air flotation contact zone 6 are internally connected, PAC flocculant and PAM coagulant aid are added to the reaction zone 5, a separation zone 7 is provided in the middle of the body 1, the conveying mechanism 2 is distributed inside the separation zone 7, the separation zone 7 and the air flotation contact zone 6 are connected, and a clear water tank 8 is provided at the other end of the body 1, and the clear water tank 8 and the interior of the separation zone 7 are connected.

[0054] In this embodiment: when in use, the operator introduces the sewage into the reaction zone 5, and the sewage will be mixed with the PAC flocculant and PAM coagulant aid in the reaction zone 5 to perform preliminary flocculation. At this time, the sewage after flocculation will be introduced into the air flotation contact zone 6, and a large number of bubbles in the air flotation contact zone 6 will be attached to the suspended matter after flocculation, driving the suspended matter into the separation zone 7 and floating to form scum. At this time, the liquid level in the separation zone 7 is maintained below the shovel plate 205; wherein, an L-shaped water pipe 11 is connected between the separation zone 7 and the clean water tank 8; the clean water in the lower layer of the separation zone 7 will enter the clean water tank 8 through the L-shaped water pipe 11;

[0055] At the same time, a reflux pipe 12 is connected between the clean water tank 8 and the separation zone 7, and an air dissolving pump 13 and an air dissolving tank 14 are installed in the middle of the reflux pipe 12, and the air dissolving tank 14 is vertically distributed on the top of the air dissolving pump 13; a part of the clean water inside the clean water tank 8 will be diverted back to the inside of the separation zone 7 through the reflux pipe 12. During this period, the clean water passing through the reflux pipe 12 will be processed by the air dissolving pump 13 and the air dissolving tank 14, and will be converted into air dissolving water by mixing with compressed air and reattached to the suspended matter after flocculation (this is the prior art); and a drain pipe 15 is connected to the outside of the clean water tank 8, and the clean water is discharged from the inside of the machine body 1 through the drain pipe 15.

[0056] Furthermore, it needs to be supplemented that: a second motor 9 is fixedly installed on the top of the reaction zone 5, and a stirring paddle 10 is fixedly installed on the output end of the second motor 9. The stirring paddle 10 is distributed inside the reaction zone 5. The second motor 9 will drive the stirring paddle 10 to rotate, thereby stirring the PAC flocculant and PAM coagulant aid inside the reaction zone 5 to improve the mixing rate.

[0057] Working principle: When in use, the operator introduces the sewage into the reaction zone 5, and the sewage will be mixed with the PAC flocculant and PAM coagulant aid in the reaction zone 5 for preliminary flocculation. At this time, the flocculated sewage will be introduced into the air flotation contact zone 6, and a large number of bubbles in the air flotation contact zone 6 will be attached to the flocculated suspended matter, driving the suspended matter into the separation zone 7 and floating up to form scum. At this time, the liquid level in the separation zone 7 is maintained below the shovel plate 205, and the clean water in the lower layer of the separation zone 7 will enter the clean water tank 8 through the L-shaped water pipe 11. At the same time, a part of the clean water in the clean water tank 8 will be diverted and returned to the separation zone 7 through the reflux pipe 12. During this period, The clean water passing through the reflux pipe 12 is processed by the air dissolving pump 13 and the air dissolving tank 14, and becomes air-dissolving water in the form of mixed compressed air and reattaches to the suspended matter after flocculation, driving the suspended matter into the interior of the separation zone 7 and floating up to form scum; at the same time, the first motor 203 is started, and the first motor 203 drives the rotating shaft 202 to rotate, and the rotating shaft 202 drives the crawler 201 to rotate synchronously, and the rotating crawler 201 drives the shovel plate 205 through the connecting plate 204, so that the shovel plate 205 moves along the liquid surface, and the shovel plate 205 moves while the shovel plate 205 moves. The scum layer accumulated on the side of the shovel plate 205 will gradually increase in thickness as the shovel plate 205 moves (such as Fig. 9 As shown in the figure, due to the different sizes of the two rotating shafts 202, the shovel board 205 will move slightly downward in the vertical direction while moving; when the shovel board 205 moves, the back plate 401 and the scraper 402 located on the side of the shovel board 205 are in an inclined state, so they do not come into contact with the liquid surface, until the shovel board 205 is driven by the crawler 201 and moves to the rotating shaft 202. As the crawler 201 continues to rotate, the shovel board 205 will revolve around the rotating shaft 202 and break away from the contact with the liquid surface, and move the scum on the liquid surface to the inside of the mud shovel board 404; while the shovel board 205 moves, the base 301 and the rubber wheel 302 located at the end of the shovel board 205 will The shovel board 205 moves along the inside of the limiting groove 303, and the base 301 and the rubber wheel 302 at the end of the shovel board 205 pass over the top of the cushion block 304. The elastic connecting member 307 contracts and then stretches. When stretching, the base 301 and the rubber wheel 302 are driven to collide with the inner side of the limiting groove 303, thereby generating vibrations and driving the shovel board 205 to resonate and shake off the scum adhering to the surface of the shovel board 205. As the shovel board 205 rotates, the back plate 401 and the scraper board 402 rotate synchronously, and the scraper board 402 is immersed below the liquid surface and pushes the scum below the liquid surface toward the direction of the shovel board 404 until the scraper board 402 and the shovel board 404 are squeezed and contacted (such as Fig. 9As shown in the figure, the back plate 401 which continues to rotate will push the scraper 402 to rotate, and the elastic connecting rod 403 will shrink adaptively until the scraper 402 passes over the side of the shoveling plate 404, and the scum below the liquid surface is scooped into the inside of the shoveling plate 404. At the same time, the scraper 402 which loses the extrusion restriction will be pushed by the elastic connecting rod 403 to reset and rotate, completing a single scum processing work.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flotation sewage treatment machine, comprising a machine body (1), characterized in that: A conveying mechanism (2) for moving scum is arranged inside the machine body (1), the conveying mechanism (2) comprises two crawlers (201) symmetrically distributed inside the machine body (1), two ends of the crawlers (201) are symmetrically sleeved with rotating shafts (202), the rotating shafts (202) are rotatably mounted inside the machine body (1), a plurality of evenly distributed connecting plates (204) are fixedly mounted between the two crawlers (201), and a shovel plate (205) for scraping scum is distributed below each connecting plate (204); A main cleaning mechanism (3) for vibrating and unloading is arranged inside the conveying mechanism (2), and the main cleaning mechanism (3) comprises bases (301) symmetrically distributed on both sides of each shovel plate (205), and an elastic connecting piece (307) is fixedly installed at the end of the base (301), and is connected to the end of the shovel plate (205) through the elastic connecting piece (307); The conveying mechanism (2) is also provided with a secondary cleaning mechanism (4) for further improving the material discharge rate, the secondary cleaning mechanism (4) comprising a back plate (401) fixed to the side of each connecting plate (204), and a scraper (402) is rotatably mounted on the bottom of the back plate (401); The conveying mechanism (2) drives the main cleaning mechanism (3) and the auxiliary cleaning mechanism (4) to move horizontally. During the movement, the main cleaning mechanism (3) shakes and the auxiliary cleaning mechanism (4) folds, thereby further completing the salvage and cleaning of the scum.

2. The flotation sewage treatment machine according to claim 1, characterized in that: The conveying mechanism (2) also includes two rotating shafts (202) of different sizes, so that the rotating crawler (201) drives the connecting plate (204) to move tiltedly, and a first motor (203) is installed on the outer side of the (1), and the output end of the first motor (203) horizontally penetrates into the interior of the (1) and is connected to the end of one of the rotating shafts (202).

3. The flotation sewage treatment machine according to claim 1, characterized in that: The main cleaning mechanism (3) also includes a rubber wheel (302) rotatably mounted inside the base (301), and limiting grooves (303) are symmetrically provided on both sides of the inner wall of the body (1), and a plurality of evenly distributed pads (304) are fixed at the end of each limiting groove (303), and a plurality of bases (301) and rubber wheels (302) located on the same side are slidably connected to the inside of the limiting groove (303) and form a compression contact with the pads (304).

4. The flotation sewage treatment machine according to claim 1, characterized in that: The auxiliary cleaning mechanism (4) also includes a plurality of elastic connecting rods (403) distributed between the back plate (401) and the scraper (402), the two ends of the elastic connecting rods (403) being rotatably connected to the back plate (401) and the scraper (402) respectively, and a shovel board (404) is fixedly installed inside the body (1), and the shovel board (404) is distributed at the end of the crawler (201), and the moving scraper (402) is in extrusion contact with the shovel board (404).

5. The flotation sewage treatment machine according to claim 1, characterized in that: A plurality of latches (305) are evenly fixed inside the connection plate (204), the top of the shovel plate (205) is sleeved on the outside of the latches (305), and a plurality of torsion springs (306) are fixedly connected between the latches (305) and the shovel plate (205).

6. The flotation sewage treatment machine according to claim 1, characterized in that: A reaction zone (5) and an air flotation contact zone (6) are symmetrically provided at one end of the machine body (1); the reaction zone (5) and the air flotation contact zone (6) are internally connected; PAC flocculant and PAM coagulant aid are added to the reaction zone (5); a separation zone (7) is provided in the middle of the machine body (1); the conveying mechanism (2) is distributed inside the separation zone (7); the separation zone (7) and the air flotation contact zone (6) are internally connected; a clear water tank (8) is provided at the other end of the machine body (1); the clear water tank (8) and the interior of the separation zone (7) are internally connected.

7. The flotation sewage treatment machine according to claim 6, characterized in that: A second motor (9) is fixedly mounted on the top of the reaction zone (5), and a stirring paddle (10) is fixedly mounted on the output end of the second motor (9), and the stirring paddle (10) is distributed inside the reaction zone (5).

8. The flotation sewage treatment machine according to claim 6, characterized in that: An L-shaped water pipe (11) is connected between the separation zone (7) and the clean water tank (8).

9. The flotation sewage treatment machine according to claim 6, characterized in that: A reflux pipe (12) is also connected between the clean water tank (8) and the separation zone (7), and an air dissolving pump (13) and an air dissolving tank (14) are installed in the middle of the reflux pipe (12), and the air dissolving tank (14) is vertically distributed on the top of the air dissolving pump (13).

10. The flotation sewage treatment machine according to claim 6, characterized in that: The outside of the clean water tank (8) is connected through a drainage pipe (15).

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