Sewage treatment aeration tank

Abstract

The invention discloses a sewage treatment aeration tank, and relates to the technical field of sewage treatment equipment, the sewage treatment aeration tank comprises an aeration tank, the aeration tank is internally provided with a dragging mechanism for centralizing floating bubbles, the dragging mechanism comprises a plurality of mounting racks fixed at the end part of the inner wall of the aeration tank, one side of each mounting rack is rotatably provided with a rotating roller, and the rotating roller is rotatably provided with a rotating shaft; the rotating rollers are distributed in the aeration tank, and a floating plate floats in the middle of the aeration tank; a treatment mechanism for puncturing floating bubbles is arranged in the dragging mechanism, the treatment mechanism comprises arc-shaped parts symmetrically arranged on the two sides of each floating plate, and the shapes of the arc-shaped parts are attached to the shapes of the outer sides of the rotating rollers; the sewage treatment aeration tank is characterized in that a dragging mechanism is arranged in the rotating roller, a collecting mechanism for cleaning impurities in floating bubbles is further arranged in the dragging mechanism, the collecting mechanism further comprises a plurality of straight grooves evenly formed in the rotating roller, and a shovel box is rotationally installed in each straight groove. And the working efficiency of the aeration tank is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and particularly relates to a sewage treatment aeration tank. Background Art

[0002] Aeration refers to the process of increasing the contact area between water and air by methods such as inflating air into water or mechanical agitation. Aeration is an intermediate process in the aerobic biological treatment of wastewater. The basic function of aeration is to generate and promote the effective contact of oxygen with water, provide oxygen under the condition that oxygen is continuously consumed in the biological oxidation process, maintain a certain dissolved oxygen concentration in water. In addition to oxygen supply, sufficient stirring and mixing effects are also generated in the aeration tank area to promote the circulation and flow of water, so that the activated sludge is fully contacted and mixed with the wastewater, and a certain movement speed of the mixed liquid is maintained.

[0003] An air flotation aerator on the existing market injects air directly into untreated sewage through the stirring functions of a diffuser impeller and a vortex pump, and efficiently pressurizes and mixes gases that are difficult to dissolve in water or two or more different liquids. However, when the air flotation aerator actually works, the violent agitation and the influx of air will cause a large number of bubbles to be generated on the liquid surface of the sewage tank, and most of the existing aeration equipment has the above problems. The large number of bubbles floating on the liquid surface will block the entry of oxygen into the water, seriously affecting the growth of organisms in the water, the operation and running of the treatment process. Moreover, according to the water quality in different sewage tanks, the generated bubbles will also be different. Most of the bubbles not only contain water, but also contain some impurities, such as floating algae sludge, etc. On the one hand, the existing aeration equipment cannot eliminate the generated bubbles, and on the other hand, it cannot treat the impurities doped in the bubbles. Summary of the Invention

[0004] The present invention discloses a sewage treatment aeration tank, aiming to solve the technical problems that the existing sewage tank aeration equipment cannot eliminate the bubbles generated during operation and cannot treat the impurities doped in the bubbles at the same time.

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

[0006] A sewage treatment aeration tank includes an aeration tank. A drag mechanism for concentrating floating bubbles is arranged inside the aeration tank. The drag mechanism includes a plurality of mounting frames fixed to the end of the inner wall of the aeration tank. A rotating roller is rotatably installed on one side of the mounting frame. The rotating rollers are distributed inside the aeration tank. A floating plate floats in the middle of the aeration tank.

[0007] A treatment mechanism for piercing floating bubbles is arranged inside the drag mechanism. The treatment mechanism includes arc-shaped parts symmetrically arranged on both sides of each floating plate. The shape of the arc-shaped part fits the outer shape of the rotating roller.

[0008] Inside the dragging mechanism, a collecting mechanism for cleaning impurities inside the floating bubbles is also provided. The collecting mechanism further includes a number of straight grooves evenly formed inside the rotating roller, and a shovel box is rotatably installed inside each straight groove;

[0009] The dragging mechanism is used to centrally collect the bubbles floating on the top of the pool. At the same time, the treatment mechanism is used to break the floating bubbles, and the collecting mechanism is used to collect the impurities in the floating bubbles.

[0010] Two groups of dragging mechanisms are symmetrically arranged inside the aeration tank. Two symmetric motors drive a floating plate to reciprocate along the liquid surface of the aeration tank. While moving, the bubbles floating on the top of the aeration tank are centrally driven towards the treatment mechanism on the rotating roller. The bubbles will contact the treatment mechanism and be punctured. At the same time, the collecting mechanism additionally arranged outside the rotating roller will collect the impurities carried in the bubbles and store them centrally, thus effectively solving the problem of a large number of floating bubbles on the liquid surface of the sewage tank during the operation of the aerator, and further improving the cleanliness of the sewage tank.

[0011] In a preferred solution, the dragging mechanism further includes a motor for driving the rotating roller installed on the top of each mounting frame. Unilateral winding drums are sleeved and fixed at both ends of each rotating roller. Bilateral winding drums are rotatably sleeved at both ends of each floating plate. The bilateral winding drums are connected to two unilateral winding drums on the same side through ropes.

[0012] By arranging a rotating roller structure driven by a motor inside the aeration tank, and additionally assembling unilateral winding drums at both ends of the rotating roller, and additionally placing a floating plate structure with bilateral winding drums installed at the ends inside the aeration tank, the floating plate is pulled by driving the unilateral winding drums to coil, causing the floating plate to move back and forth along the top of the aeration tank, so as to centrally drag the floating bubbles on the top of the aeration tank to both sides, facilitating subsequent centralized treatment of the floating bubbles.

[0013] In a preferred solution, the treatment mechanism further includes an inner concave nail plate fixedly installed inside each arc portion. A number of outer convex nail plates are evenly fixed on the outer side of the rotating roller. The inner concave nail plates and the outer convex nail plates are distributed in a horizontal offset manner.

[0014] By arranging arc faces with fixed inner concave nail plates on both sides of the floating plate, and fixing outer convex nail plates on the outer side of the rotating roller, when the floating plate pulls the floating bubbles closer to the rotating roller, the inner concave nail plates and the outer convex nail plates can cooperate with each other to squeeze the floating bubbles, thereby puncturing the bubbles and solving the problem of floating bubbles in the aeration tank.

[0015] In a preferred embodiment, a flow-through groove is formed in the side wall of each mounting bracket. The flow-through groove is flush with the top of the rotating roller in the horizontal direction. A receiving box is horizontally disposed inside the mounting bracket and is located below the flow-through groove.

[0016] By further providing a plurality of shoveling box structures rotatably mounted inside the rotating roller, after the floating bubbles are punctured, the shoveling box structures that revolve synchronously with the rotating roller can scoop up the dirt in the floating bubbles. As the rotating roller rotates, when the opening on the side of the shoveling box aligns with the flow-through groove, the dirt inside the shoveling box can flow into the additionally provided receiving box along with the water flow, thereby disposing of the impurities mixed in the floating bubbles together and further improving the cleanliness of the aeration tank.

[0017] In a preferred embodiment, a bearing plate is provided on the side of each mounting bracket. The receiving box is placed on the top of the bearing plate. A plurality of water seepage grooves are evenly formed inside each bearing plate. At the same time, a sieve plate is fixed to the bottom of each receiving box.

[0018] By providing a bearing plate structure with its own water seepage grooves to place the receiving box, and at the same time fixing the bottom of the receiving box through the sieve plate, it is ensured that the sewage entering the receiving box can flow away through the water seepage grooves and the sieve plate, while intercepting the dirt mixed in the sewage, thereby further ensuring the perfection of the operation of this equipment.

[0019] As can be seen from the above, compared with the prior art, the sewage treatment aeration tank provided by the present invention has the following improvements and advantages:

[0020] First: By providing a rotating roller structure driven by a motor inside the aeration tank, and additionally assembling a single-sided winding cylinder at both ends of the rotating roller, and additionally placing a floating plate structure with a double-sided winding cylinder installed at the end inside the aeration tank, the floating plate is pulled by the motor, causing the floating plate to move back and forth along the top of the aeration tank, thereby concentrating the floating bubbles floating on the top of the aeration tank to both sides. Moreover, an arc surface part with a fixed concave nail plate is provided on both sides of the floating plate, and a convex nail plate is fixed on the outside of the rotating roller. When the floating plate pulls the floating bubbles closer to the rotating roller, the concave nail plate and the convex nail plate can cooperate with each other to squeeze the floating bubbles, thereby concentrating and puncturing the bubbles, effectively solving the problem of floating bubbles on the liquid surface and ensuring the working efficiency of the aeration tank.

[0021] Second: By further arranging a number of shoveling box structures rotatably installed inside the rotating roller, when the floating bubbles are punctured, the shoveling box structures that revolve synchronously with the rotating roller can scoop up the dirt in the floating bubbles. Along with the rotation of the rotating roller, when the opening on the side of the shoveling box aligns with the flow-through groove, the dirt inside the shoveling box can flow into the additionally provided receiving box along with the water flow, thereby disposing of the impurities mixed in the floating bubbles together and further improving the cleanliness of the aeration tank. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of a sewage treatment aeration tank proposed by the present invention.

[0023] Figure 2 It is a schematic diagram of the internal structure of a sewage treatment aeration tank proposed by the present invention.

[0024] Figure 3 It is a schematic diagram of the dragging mechanism structure of a sewage treatment aeration tank proposed by the present invention.

[0025] Figure 4 It is an exploded view of the rotating roller structure of a sewage treatment aeration tank proposed by the present invention.

[0026] Figure 5 It is an exploded view of the floating plate structure of a sewage treatment aeration tank proposed by the present invention.

[0027] Figure 6 It is a schematic diagram of the state when the rotating roller and the floating plate of a sewage treatment aeration tank proposed by the present invention are in contact.

[0028] Figure 7 It is a schematic diagram of the rotating roller structure of a sewage treatment aeration tank proposed by the present invention.

[0029] Figure 8 It is a cross-sectional view of the double-sided winding drum structure of a sewage treatment aeration tank proposed by the present invention.

[0030] In the figure: 1, aeration tank; 2, dragging mechanism; 201, mounting frame; 202, motor; 203, rotating roller; 204, belt; 205, single-sided winding drum; 206, floating plate; 207, double-sided winding drum; 208, torsion spring; 3, treatment mechanism; 301, arc portion; 302, concave nail plate; 303, convex nail plate; 4, collection mechanism; 401, straight groove; 402, shoveling box; 403, flow-through groove; 404, receiving box; 405, bearing plate; 406, water seepage groove; 407, sieve plate; 5, movable groove. Detailed Embodiment

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] A sewage treatment aeration tank disclosed by the present invention is mainly applied to the scenario of treating floating bubbles on the liquid surface during the operation of the aeration tank.

[0033] Refer to Figures 1 to 8 , a sewage treatment aeration tank, including an aeration tank 1, a dragging mechanism 2 for concentrating floating bubbles is arranged inside the aeration tank 1. The dragging mechanism 2 includes a plurality of mounting frames 201 fixed to the end parts of the inner wall of the aeration tank 1. A rotating roller 203 is rotatably installed on one side of the mounting frame 201. The rotating rollers 203 are distributed inside the aeration tank 1. A floating plate 206 floats in the middle of the aeration tank 1;

[0034] A treatment mechanism 3 for piercing floating bubbles is arranged inside the dragging mechanism 2. The treatment mechanism 3 includes arc-shaped parts 301 symmetrically arranged on both sides of each floating plate 206. The shape of the arc-shaped part 301 fits the outer shape of the rotating roller 203;

[0035] A collecting mechanism 4 for cleaning impurities inside the floating bubbles is further arranged inside the dragging mechanism 2. The collecting mechanism 4 further includes a plurality of straight grooves 401 uniformly opened inside the rotating roller 203. A shovel box 402 is rotatably installed inside each straight groove 401;

[0036] The dragging mechanism 2 is used to centrally collect the bubbles floating on the pool top, and at the same time, the treatment mechanism 3 is used to break the floating bubbles and the collecting mechanism 4 is used to collect the impurities in the floating bubbles.

[0037] In this embodiment: when the aeration tank 1 is working, a large number of bubbles will float on the top of the aeration tank 1. At this time, the dragging mechanism 2 located on the top of the aeration tank 1 will be started synchronously. The dragging mechanism 2 will slowly drive the floating plate 206 to reciprocate along the liquid surface. While moving, the bubbles floating on the liquid surface will be driven to both sides of the aeration tank 1. At the same time, the moving floating bubbles will gradually contact the treatment mechanism 3 and be broken under the extrusion of the treatment mechanism 3. At the same time, the collecting mechanism 4 will be started synchronously to collect and process the impurities doped in the broken bubbles.

[0038] In the above solution, considering that a large number of bubbles scattered and floating on the top of the aeration tank 1 need to be centrally treated, the specific operation is as follows.

[0039] Refer to Figures 1 to 8, in a preferred embodiment, the dragging mechanism 2 further includes a motor 202 mounted on the top of each mounting frame 201 for driving the rotating roller 203. Both ends of each rotating roller 203 are fixedly sleeved with single-sided winding drums 205. Both ends of each floating plate 206 are rotatably sleeved with double-sided winding drums 207. The double-sided winding drums 207 are connected to two single-sided winding drums 205 on the same side through ropes.

[0040] In this embodiment: while the aeration tank 1 is working, a large number of bubbles will float on the top of the aeration tank 1. At this time, the motor 202 located on the top of the aeration tank 1 will start synchronously. The rotating motor 202 will drive the rotating roller 203 synchronously, causing the rotating roller 203 to drive the single-sided winding drum 205 to rotate. The rotating single-sided winding drum 205 will gradually shorten the length of the rope between the double-sided winding drums 207. At the same time, the motor 202 on the other side rotates in cooperation in the reverse direction, thereby lengthening the length of the rope between the double-sided winding drums 207, causing the floating plate 206 to reciprocate along the liquid surface. While moving, the bubbles floating on the liquid surface are driven to both sides of the aeration tank 1; wherein, a torsion spring 208 is sleeved at the end of the floating plate 206. Both ends of the torsion spring 208 are respectively connected to the floating plate 206 and the double-sided winding drum 207. When the floating plate 206 touches the side surface of the rotating roller 203, at this time, the continuously rotating single-sided winding drum 205 will pull the double-sided winding drum 207 to rotate around the torsion spring 208, thereby providing a stroke for the continuous rotation of the rotating roller 203.

[0041] Further, it is supplemented and explained that: a belt 204 is sleeved between the ends of the motor 202 and the rotating roller 203 in a transmission manner. An activity groove 5 is opened at the top of each mounting frame 201, and the belt 204 is distributed inside the activity groove 5.

[0042] In the above solution, considering that in order to break the bubbles floating on the liquid surface, the specific operation is as follows.

[0043] Refer to Figures 1 to 6 , in a preferred embodiment, the processing mechanism 3 further includes an inner concave nail plate 302 fixedly installed inside each arc portion 301. A plurality of outer convex nail plates 303 are uniformly fixed on the outer side of the rotating roller 203. The inner concave nail plates 302 and the outer convex nail plates 303 are distributed in a horizontal offset manner.

[0044] In this embodiment: when the floating plate 206 reciprocates along the liquid surface and drives the bubbles floating on the liquid surface to both sides of the aeration tank 1, as the floating plate 206 approaches the rotating roller 203, the inner concave nail plate 302 and the outer convex nail plate 303 will form extrusion and shearing of the floating bubbles, thereby breaking the floating bubbles; at this time, the positional relationship between the inner concave nail plate 302 and the outer convex nail plate 303 is as Figure 6 shown.

[0045] In the above solution, considering that a large amount of impurities will be generated after the floating bubbles are punctured, the specific operation is as follows.

[0046] Referring to Figures 2 to 4 、 Figure 6 、 Figure 7 , in a preferred embodiment, the collecting mechanism 4 further includes a flow channel 403 formed in the side wall of each mounting bracket 201. The flow channel 403 is flush with the top of the rotating roller 203 in the horizontal direction. A receiving box 404 is horizontally distributed inside the mounting bracket 201, and the receiving box 404 is disposed below the flow channel 403.

[0047] In this embodiment: As the floating bubbles are squeezed and burst, the dirt inside the floating bubbles will float on the water surface. At this time, the continuously rotating rotating roller 203 will drive the shovel box 402 to revolve and scoop up the dirt. As the rotating roller 203 continues to rotate until the side of the shovel box 402 contacts the flow channel 403, the sewage inside the shovel box 402 will flow along the flow channel 403 and fall into the inside of the receiving box 404, thereby collecting and treating the dirt in the floating bubbles.

[0048] Among them, it should be added that: a bearing plate 405 is provided on the side of each mounting bracket 201, the receiving box 404 is placed on the top of the bearing plate 405, and a plurality of water seepage grooves 406 are uniformly formed in the inside of each bearing plate 405, and a sieve plate 407 is fixed to the bottom of each receiving box 404; the sewage entering the inside of the receiving box 404 will flow away along the water seepage grooves 406 on the bearing plate 405 and the sieve plate 407, but the dirt in the sewage will be intercepted and collected inside the receiving box 404.

[0049] Working principle: When the aeration tank 1 is working, a large number of bubbles will float on the top of the aeration tank 1. At this time, the motor 202 located at the top of the aeration tank 1 will start synchronously. The rotating motor 202 will drive the rotating roller 203 synchronously, causing the rotating roller 203 to drive the single-sided winding cylinder 205 to rotate. The rotating single-sided winding cylinder 205 will gradually shorten the length of the rope between the double-sided winding cylinders 207. At the same time, the motor 202 on the other side rotates in reverse to cooperate, so as to lengthen the length of the rope between the double-sided winding cylinders 207, causing the floating plate 206 to reciprocate along the liquid surface. While moving, the bubbles floating on the liquid surface are driven to both sides of the aeration tank 1. When the floating plate 206 touches the side of the rotating roller 203, the continuously rotating single-sided winding cylinder 205 will pull the double-sided winding cylinder 207 to rotate around the torsion spring 208, so as to provide a stroke for the continuous rotation of the rotating roller 203. As the floating plate 206 approaches the rotating roller 203, the concave nail plate 302 and the convex nail plate 303 will form extrusion and shearing of the floating bubbles, so that the floating bubbles are broken. At this time, the dirt inside the floating bubbles will float on the water surface, and the continuously rotating rotating roller 203 will drive the shovel box 402 to revolve and scoop up the dirt. As the rotating roller 203 continues to rotate, until the side of the shovel box 402 contacts the flow channel 403, the sewage inside the shovel box 402 will flow along the flow channel 403 and fall into the inside of the receiving box 404. The sewage entering the inside of the receiving box 404 will flow away along the water seepage groove 406 and the sieve plate 407 on the bearing plate 405, but the dirt in the sewage will be intercepted and collected inside the receiving box 404, so as to collect and process the dirt in the floating bubbles.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A sewage treatment aeration tank, comprising an aeration tank (1), characterized in that: The interior of the aeration tank (1) is provided with a dragging mechanism (2) for concentrating floating bubbles, the dragging mechanism (2) comprising a plurality of mounting frames (201) fixed to the inner wall end of the aeration tank (1), a rotating roller (203) being rotatably mounted on one side of the mounting frame (201), the rotating roller (203) being distributed inside the aeration tank (1), and a floating plate (206) floating in the middle of the aeration tank (1); The dragging mechanism (2) is provided with a processing mechanism (3) for puncturing the bubbles. FIG. 5 needs to be modified. The marks 206 and 301 are similar. The processing mechanism (3) includes arc-shaped portions (301) symmetrically arranged on both sides of each of the floating plates (206). The shape of the arc-shaped portions (301) matches the outer shape of the rotating roller (203). The dragging mechanism (2) is also provided with a collecting mechanism (4) for cleaning impurities inside the bubbles. The collecting mechanism (4) also includes a plurality of straight grooves (401) evenly arranged inside the rotating roller (203). A shovel box (402) is rotatably installed inside each straight groove (401). The air bubbles floating on the top of the pool are collected in a centralized manner by the dragging mechanism (2), while the bubbles are broken by the processing mechanism (3) and the impurities in the bubbles are collected by the collecting mechanism (4).

2. A sewage treatment aeration tank according to claim 1, characterized in that: The towing mechanism (2) further comprises a motor (202) for driving a rotating roller (203) mounted on the top of each mounting frame (201), a single-sided winding drum (205) being sleeved and fixed at both ends of each rotating roller (203), and a double-sided winding drum (207) being rotatably sleeved at both ends of each floating plate (206), wherein the double-sided winding drum (207) is connected to two single-sided winding drums (205) located on the same side via a rope.

3. A sewage treatment aeration tank according to claim 2, characterized in that: The processing mechanism (3) further comprises an inner concave nail plate (302) fixedly mounted inside each of the arc-shaped portions (301), and a plurality of outer convex nail plates (303) are evenly fixed on the outer side of the rotating roller (203), wherein the inner concave nail plates (302) and the outer convex nail plates (303) are staggeredly distributed in the horizontal direction.

4. A sewage treatment aeration tank according to claim 3, characterized in that: The collecting mechanism (4) further comprises a circulation groove (403) provided on the side wall of each mounting frame (201), the circulation groove (403) and the top of the rotating roller (203) being flush in the horizontal direction, and a receiving box (404) being horizontally distributed on the inner side of the mounting frame (201), and the receiving box (404) being distributed below the circulation groove (403).

5. A sewage treatment aeration tank according to claim 4, characterized in that: A belt (204) is connected between the motor (202) and the ends of the rotating roller (203).

6. A sewage treatment aeration tank according to claim 5, characterized in that: A movable groove (5) is provided on the top of each mounting frame (201), and the belt (204) is distributed inside the movable groove (5).

7. A sewage treatment aeration tank according to claim 6, characterized in that: A torsion spring (208) is sleeved on the end of the floating plate (206), and two ends of the torsion spring (208) are respectively connected to the floating plate (206) and the double-sided winding drum (207).

8. A sewage treatment aeration tank according to claim 7, characterized in that: A bearing plate (405) is provided on the side of each mounting frame (201), and the receiving box (404) is placed on the top of the bearing plate (405).

9. A sewage treatment aeration tank according to claim 8, characterized in that: A plurality of water seepage grooves (406) are evenly arranged inside each of the bearing plates (405).

10. A sewage treatment aeration tank according to claim 9, characterized in that: A sieve plate (407) is fixed to the bottom of each receiving box (404).

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