Integrated sewage treatment equipment

Abstract

The invention discloses integrated sewage treatment equipment, and relates to the technical field of sewage treatment, the integrated sewage treatment equipment comprises a box body, the box body is sequentially provided with a grid filter tank, an anaerobic tank, an aerobic tank, a membrane biological reaction tank and a clear liquid storage tank from left to right; the grid filter tank, the anaerobic tank, the aerobic tank, the membrane biological reaction tank and the clear liquid storage tank are communicated through a pump set; an aeration pipe group is arranged in the aerobic tank; the aeration pipe group comprises a plurality of aeration pipes which are uniformly arranged at the bottom of the aerobic tank in a whole row along the width direction of the aerobic tank, and an air injection pipe connected with one end of each aeration pipe. The inner pipe is driven by gas to rotate, so that air exhausted from the outer pipe is continuously changed in the circumferential direction of the outer pipe, the continuously changed gas can impact organic matter particles at the bottom of the sedimentation tank to enable the organic matter to float, the contact probability of the organic matter particles and microorganisms is increased, and the decomposition efficiency of the organic matter is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an integrated sewage treatment device. Background Art

[0002] Integrated sewage treatment equipment is a device that integrates a grid filter tank, an anaerobic tank, an aerobic tank, a membrane bioreactor tank and a clear liquid storage tank, and performs aeration in the aerobic tank, so that the contact oxidation method and the activated sludge method are effectively combined, saving the tediousness of finding someone to design a sewage treatment process and doing basic construction. By performing aeration in the contact oxidation tank, the oxygen content in the sewage can be increased to promote the reproduction of microorganisms to decompose organic matter in the sewage. Some organic matter in the sewage has large particles. As the contact oxidation proceeds, some of the large organic matter sinks to the bottom of the contact oxidation tank. Even if an aeration pipe group is set in the contact oxidation tank, the aeration holes of the aeration pipe group are at a certain distance from the bottom of the tank, so that the organic matter particles deposited in the angle area between the peripheral wall of the aeration pipe and the bottom of the tank are difficult to be turned up by aeration, thereby affecting the decomposition efficiency of the organic matter. Summary of the invention

[0003] The purpose of the present invention is to provide an integrated sewage treatment device to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: The present invention provides an integrated sewage treatment device, comprising a box body, wherein the box body is sequentially provided with a grid filter tank, an anaerobic tank, an aerobic tank, a membrane biological reaction tank and a clear liquid storage tank from left to right; the grid filter tank, the anaerobic tank, the aerobic tank, the membrane biological reaction tank and the clear liquid storage tank are connected by a pump group; An aeration pipe group is arranged in the aerobic pool; the aeration pipe group includes a plurality of aeration pipes uniformly arranged at the bottom of the aerobic pool along the width direction of the aerobic pool and an air injection pipe connected to one end of the plurality of aeration pipes, the plurality of aeration pipes are parallel to each other and arranged along the length direction of the aerobic pool, one end of the air injection pipe is sealed, and the air inlet of the air injection pipe is extended to be connected to the blower; The aeration pipe comprises an outer pipe, an inner pipe and a rotating pipe which are coaxially arranged in sequence from outside to inside, and both ends of the outer pipe are provided with blocking components so that the interior of the outer pipe forms a sealed chamber, and an aeration hole group is evenly arranged and penetrated on the outer wall of the outer pipe along its length direction; The outer wall of the inner tube is in close contact with the inner wall of the outer tube, and both ends of the inner tube are sealed. The inner tube is penetrated by a connecting groove extending along its length direction; Both ends of the rotating tube are open, and a number of spiral channels are evenly arranged inside the rotating tube along the circumferential direction. An annular gap is provided between the rotating tube and the inner tube. The two ends of the rotating tube are respectively an air inlet end and an air outlet end. An air inlet spacing is left between the air outlet end of the rotating tube and one sealed end of the inner tube, and the air inlet end of the rotating tube penetrates the other sealed end of the inner tube and the corresponding blocking member. The rotating tube is fixedly connected to the sealed end of the inner tube penetrated by the rotating tube, and the rotating tube is sealingly and rotatably connected to the blocking member penetrated by the rotating tube. The blocking member of the aeration tube near one end of the rotating tube is detachably connected to the air outlet of the air injection tube.

[0005] Furthermore, the sealing component includes a sleeve, one end of which is detachably connected to a sealing plate, and the sleeve forms a columnar movable cavity and a columnar connecting cavity from the sealing plate to the other end, the inner wall of the columnar connecting cavity is provided with an internal thread, and the outer walls of both ends of the outer tube are provided with internal threads.

[0006] Furthermore, both ends of the inner tube extend into the columnar movable cavity of the sleeve respectively, and bearings are installed on the outer walls of the inner tube in the columnar movable cavity.

[0007] Furthermore, the communicating groove extends in a spiral along the length direction of the inner tube.

[0008] Furthermore, the aeration hole group includes aeration holes evenly arranged along the circumferential direction of the outer tube, and a sealing ring is arranged on the outside of each aeration hole group. The sealing ring is sleeved on the outside of the outer tube, and the sealing ring has a first position covering the outside of the aeration hole group to seal the aeration hole group and a second position between adjacent aeration hole groups to release the sealing of the aeration hole group.

[0009] Furthermore, an elastic driving member is arranged in the sleeve at one end of the outer tube away from the gas injection tube, and the elastic driving member includes a movable ring axially slidably arranged in the columnar movable cavity, the inner wall of the movable ring is tightly attached to the inner wall of the columnar movable cavity, and a resistance ring is axially extended and arranged on the side of the movable ring close to the inner tube to resist the outer ring of the bearing, and a return spring is arranged between the side of the movable ring away from the inner tube and the sealing plate; The elastic driving component also includes a movable shaft axially passing through the center of the sealing plate, the movable shaft and the sealing plate are slidingly sealed, and one end of the movable shaft inside the columnar movable cavity is fixedly connected to the movable ring through a fixed rod, and pull rods are evenly arranged along the circumferential direction on the outside of the movable shaft outside the columnar movable cavity, the pull rods are fixedly connected to the sealing ring outside the outer tube, and the pull rods are fixedly connected to the movable shaft through a connecting piece.

[0010] Furthermore, the aeration holes are strip-shaped and extend along the length direction of the outer tube.

[0011] Furthermore, a fixing ring is provided on the outer tube between adjacent aeration hole groups, one end of the sealing ring is in contact with the fixing ring when the sealing ring is in the first position, and a sealing rubber tube is connected to the end of the sealing ring away from the fixing ring, and the end of the sealing rubber tube away from the sealing ring is fixedly connected to the outer side wall of the outer tube.

[0012] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: The present invention drives the inner tube to rotate by gas, so that the air discharged from the outer tube continuously changes along the circumferential direction of the outer tube. The continuously changing gas impacts the organic particles at the bottom of the sedimentation pool to make the organic matter float, thereby increasing the probability of contact between the organic particles and microorganisms, which is beneficial to improving the decomposition efficiency of the organic matter.

[0013] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure of the aeration tube group of Example 1 of the present invention; Figure 3 is a schematic diagram of the cross-sectional structure of an aeration tube in Example 1 of the present invention; Figure 4 is a schematic structural diagram of a blocking component in Example 1 of the present invention; Figure 5 This is a schematic diagram of the inner tube structure of Example 1 of the present invention; Figure 6 is a schematic cross-sectional structural diagram of embodiment 2 of the present invention; Figure 7 yes Figure 6 Schematic diagram of the local structure at A; Figure 8 It is a schematic diagram of the inner tube structure of Example 2 of the present invention.

[0016] In the figure: 1-housing; 11-grid filter tank; 12-anaerobic tank; 13-aerobic tank; 14-membrane biological reactor; 15-clear liquid storage tank; 2-aeration pipe; 22-outer pipe; 221-aeration hole group; 2211-aeration hole; 23-inner pipe; 231-connecting groove; 24-rotating pipe; 241-spiral channel; 242-inlet end; 243-outlet end; 25-blocking member; 251-sleeve; 252-sealing plate; 253-columnar movable cavity; 254-columnar connecting cavity; 3-bearing; 4-blocking ring; 5-elastic driving member; 51-movable ring; 52-resistance ring; 53-reset spring; 54-movable shaft; 55-pull rod; 6-fixing ring; 7-sealing rubber tube. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0018] Example 1, please refer to Figure 1-Figure 8 The present invention provides an integrated sewage treatment equipment, including a housing 1, wherein the housing 1 is formed with a grid filter pool 11, an anaerobic pool 12, an aerobic pool 13, a membrane biological reactor pool 14 and a clear liquid storage pool 15 from left to right in sequence; the grid filter pool 11, the anaerobic pool 12, the aerobic pool 13, the membrane biological reactor pool 14 and the clear liquid storage pool 15 are connected by a pump group (not shown). During operation, the sewage first enters the grid filter pool 11, is intercepted by the grid to remove large particles of suspended matter and impurities, and then enters the anoxic pool for preliminary hydrolysis reaction to improve the biodegradability of the sewage, and then is introduced into the aerobic pool 13 by the pump group, and the COD in the water is decomposed by the action of aerobic microorganisms through the blower oxygenation. At the same time, the ammonia nitrogen is converted into nitrate nitrogen under the action of nitrifying bacteria, and finally enters the membrane biological reactor pool 14 by the pump group for solid-liquid separation, reduces the content of suspended matter in the water, and realizes the separation of mud and water, and finally the effluent enters the clear liquid storage pool 15 for discharge. The above are all prior art, and their working principles will not be elaborated in detail here.

[0019] The present invention aims to solve the problem that during aeration in the aerobic pool 13 , organic particles deposited in the angle area between the peripheral wall of the aeration pipe 2 and the pool bottom are difficult to be turned up by aeration, thereby affecting the decomposition efficiency of the organic matter.

[0020] An aeration pipe group is provided in the aerobic pool 13; the aeration pipe group includes a plurality of aeration pipes 2 uniformly arranged at the bottom of the aerobic pool 13 along the width direction of the aerobic pool 13 and an air injection pipe connected to one end of the plurality of aeration pipes 2, the plurality of aeration pipes 2 are parallel to each other and arranged along the length direction of the aerobic pool 13, one end of the air injection pipe is sealed, and the air inlet of the air injection pipe is extended to be connected to the blower; The aeration tube 2 comprises an outer tube 22, an inner tube 23 and a rotating tube 24 which are coaxially arranged from outside to inside. Both ends of the outer tube 22 are provided with blocking members 25 so that the interior of the outer tube 22 forms a sealed chamber. The outer wall of the outer tube 22 is evenly and neatly arranged with aeration hole groups 221 along its length direction. The outer wall of the inner tube 23 is in close contact with the inner wall of the outer tube 22, and both ends of the inner tube 23 are sealed. The inner tube 23 is penetrated by a connecting groove 231 extending along its length direction. Both ends of the rotating tube 24 are open, and a number of spiral channels 241 are evenly arranged inside the rotating tube 24 along the circumferential direction. There is an annular gap between the rotating tube 24 and the inner tube 23. The two ends of the rotating tube 24 are respectively an air inlet end 242 and an air outlet end 243. An air inlet spacing is left between the air outlet end 243 of the rotating tube 24 and one sealed end of the inner tube 23, and the air inlet end 242 of the rotating tube 24 penetrates the other sealed end of the inner tube 23 and the corresponding plugging component 25. The rotating tube 24 is fixedly connected to the sealed end of the inner tube 23 penetrated by it, and the rotating tube 24 is sealed and rotatably connected to the plugging component 25 penetrated by it. The plugging component 25 of the aeration tube 2 near one end of the rotating tube 24 is detachably connected to the air outlet of the air injection pipe.

[0021] When in use, the blower injects air into the air injection pipe, which is then introduced into the aeration pipe 2 for aeration. In the process of the gas entering the aeration pipe 2 and being discharged for aeration, the gas enters the rotating tube 24 through the air inlet end 242. Since a plurality of spiral channels 241 are provided in the rotating tube 24, the gas will push the rotating tube 24 to rotate during the axial flow of the gas along the rotating tube 24. At this time, the rotating tube 24 will drive the inner tube 23 to rotate in the cavity of the outer tube 22, and the gas will be connected with the aeration hole group 221 on the outer tube 22 in sequence through the connecting groove 231, so that the air discharged from the outer tube 22 is constantly changing along the circumferential direction of the outer tube 22. The constantly changing gas will impact the organic particles at the bottom of the sedimentation tank to make the organic matter float, thereby increasing the probability of contact between the organic particles and the microorganisms, which is beneficial to improving the decomposition efficiency of the organic matter.

[0022] In a specific embodiment of the present invention, the plugging member 25 includes a sleeve 251, one end of which is detachably connected to a sealing plate 252, and the sleeve 251 is formed with a columnar active cavity 253 and a columnar connecting cavity 254 from the sealing plate 252 to the other end, respectively, the inner wall of the columnar connecting cavity 254 is provided with an internal thread, and the outer walls of both ends of the outer tube 22 are provided with internal threads. Based on the above design, it is convenient to assemble the inner tube 23 and the rotating tube 24 into the outer tube 22, and the outer tube 22 can be directly replaced after being corroded and damaged, thereby reducing costs.

[0023] In a specific embodiment of the present invention, both ends of the inner tube 23 extend into the columnar active cavity 253 of the sleeve 251, and the outer wall of the inner tube 23 in the columnar active cavity 253 is installed with bearings 3. Based on the above design, the inner tube 23 can rely on the bearings 3 at both ends, so that the rotating tube 24 and the inner tube 23 can rotate smoothly in the outer tube 22.

[0024] In a specific embodiment of the present invention, the communication groove 231 extends spirally along the length direction of the inner tube 23. Based on the above design, it is ensured that during the continuous rotation of the inner tube 23, at least a portion of the communication groove 231 overlaps with the aeration hole group 221 of the outer tube 22.

[0025] Embodiment 2, on the basis of embodiment 1, the aeration hole group 221 includes aeration holes 2211 evenly arranged along the circumferential direction of the outer tube 22, and a blocking ring 4 is arranged on the outside of each aeration hole group 221, and the blocking ring 4 is sleeved on the outside of the outer tube 22, and the blocking ring 4 has a first position of covering the outside of the aeration hole group 221 to block the aeration hole group 221 and a second position of being between adjacent aeration hole groups 221 to release the blocking of the aeration hole group 221. Based on the above design, during aeration, the blocking ring 4 moves to the second position, at which time the blocking ring 4 is between adjacent aeration hole groups 221, allowing gas to be discharged from the aeration holes 2211 of each aeration hole group 221 for aeration, and when not in use, the blocking ring 4 moves to the first position, and the blocking ring 4 can block each aeration hole group 221 to prevent impurities from clogging the aeration holes 2211.

[0026] In a specific embodiment of the present invention, an elastic driving member 5 is arranged in the sleeve 251 at one end of the outer tube 22 away from the gas injection tube, and the elastic driving member 5 includes an active ring 51 axially slidably arranged in the columnar active cavity 253, the inner wall of the active ring 51 is tightly attached to the inner wall of the columnar active cavity 253, and a resistance ring 52 that resists the outer ring of the bearing 3 is axially extended on the side of the active ring 51 close to the inner tube 23, and a return spring 53 is arranged between the side of the active ring 51 away from the inner tube 23 and the sealing plate 252. The elastic driving member 5 also includes a movable shaft 54 ​​axially passing through the center of the sealing plate 252, the movable shaft 54 ​​and the sealing plate 252 are slidingly sealed, and one end of the movable shaft 54 ​​inside the columnar movable cavity 253 is fixedly connected to the movable ring 51 through a fixed rod, and pull rods 55 are evenly arranged along the circumferential direction on the outside of the movable shaft 54 ​​outside the columnar movable cavity 253, and the pull rods 55 are fixedly connected to the sealing ring 4 outside the outer tube 22, and the pull rods 55 are fixedly connected to the movable shaft 54 ​​through a connecting piece.

[0027] Based on the above design, when the blower stops working, under the action of the reset spring 53, the resistance ring 52 of the movable ring 51 pushes the inner tube 23 to move in the outer tube 22 toward one end of the gas injection tube. At this time, the movable ring 51 can pull the pull rod 55 to move through the movable shaft 54, so that the sealing ring 4 moves to the first position to complete the sealing of the aeration hole group 221. When the blower is working, the gas enters the inner tube 23 through the rotating tube 24. At this time, since the sealing ring 4 blocks the aeration hole group 221, the gas will push the inner tube 23 to move, causing the movable ring 51 to move away from one end of the gas injection tube and squeeze the reset spring 53. During this process, the movable shaft 54 ​​can move the sealing ring 4 to the second position through the pull rod 55.

[0028] It should be noted that, in the present invention, the plugging ring 4 can be moved continuously on one side of the outer tube 22 by repeated intermittent gas injection, so that impurities on the outer tube 22 can be removed by the plugging ring 4 .

[0029] In a specific embodiment of the present invention, the aeration holes 2211 are strip-shaped and extend along the length direction of the outer tube 22. Based on the above design, when in use, the air injection amount can be adjusted by adjusting the power of the blower, thereby adjusting the compression amount of the return spring 53, thereby adjusting the moving distance of the blocking ring 4, that is, the overlap between the blocking ring 4 and the aeration hole 2211, and completing the adjustment of the diameter of the aeration hole 2211.

[0030] In a specific embodiment of the present invention, a fixing ring 6 is provided on the outer tube 22 between adjacent aeration hole groups 221, one end of the blocking ring 4 abuts against the fixing ring 6 when the blocking ring 4 is in the first position, and a sealing rubber tube 7 is connected to the end of the blocking ring 4 away from the fixing ring 6, and the end of the sealing rubber tube 7 away from the blocking ring 4 is fixedly connected to the outer wall of the outer tube 22. Based on the above design, the blocking effect of the blocking ring 4 on the aeration holes 2211 can be improved.

[0031] 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. An integrated sewage treatment equipment, comprising a box body, wherein the box body is sequentially formed with a grid filter tank, an anaerobic tank, an aerobic tank, a membrane biological reaction tank and a clear liquid storage tank from left to right; the grid filter tank, the anaerobic tank, the aerobic tank, the membrane biological reaction tank and the clear liquid storage tank are connected by a pump group; It is characterized in that An aeration pipe group is arranged in the aerobic pool; the aeration pipe group includes a plurality of aeration pipes uniformly arranged at the bottom of the aerobic pool along the width direction of the aerobic pool and an air injection pipe connected to one end of the plurality of aeration pipes, the plurality of aeration pipes are parallel to each other and arranged along the length direction of the aerobic pool, one end of the air injection pipe is sealed, and the air inlet of the air injection pipe is extended to be connected to the blower; The aeration pipe comprises an outer pipe, an inner pipe and a rotating pipe which are coaxially arranged in sequence from outside to inside, and both ends of the outer pipe are provided with blocking components so that the interior of the outer pipe forms a sealed chamber, and an aeration hole group is evenly arranged and penetrated on the outer wall of the outer pipe along its length direction; The outer wall of the inner tube is in close contact with the inner wall of the outer tube, and both ends of the inner tube are sealed. The inner tube is penetrated by a connecting groove extending along its length direction; Both ends of the rotating tube are open, and a number of spiral channels are evenly arranged inside the rotating tube along the circumferential direction. An annular gap is provided between the rotating tube and the inner tube. The two ends of the rotating tube are respectively an air inlet end and an air outlet end. An air inlet spacing is left between the air outlet end of the rotating tube and one sealed end of the inner tube, and the air inlet end of the rotating tube penetrates the other sealed end of the inner tube and the corresponding blocking member. The rotating tube is fixedly connected to the sealed end of the inner tube penetrated by the rotating tube, and the rotating tube is sealingly and rotatably connected to the blocking member penetrated by the rotating tube. The blocking member of the aeration tube near one end of the rotating tube is detachably connected to the air outlet of the air injection tube.

2. The integrated sewage treatment equipment according to claim 1, characterized in that: The sealing component includes a sleeve, one end of which is detachably connected to a sealing plate, and a columnar movable cavity and a columnar connecting cavity are formed from the sealing plate to the other end of the sleeve, the inner wall of the columnar connecting cavity is provided with an internal thread, and the outer walls of both ends of the outer tube are provided with internal threads.

3. The integrated sewage treatment equipment according to claim 1, characterized in that: Both ends of the inner tube extend into the columnar active cavity of the sleeve respectively, and bearings are installed on the outer wall of the inner tube in the columnar active cavity.

4. The integrated sewage treatment equipment according to claim 1, characterized in that: The communicating groove extends in a spiral shape along the length direction of the inner tube.

5. The integrated sewage treatment equipment according to claim 3, characterized in that: The aeration hole group includes aeration holes evenly arranged along the circumferential direction of the outer tube, and a sealing ring is arranged on the outside of each aeration hole group. The sealing ring is sleeved on the outside of the outer tube, and the sealing ring has a first position covering the outside of the aeration hole group to seal the aeration hole group and a second position between adjacent aeration hole groups to release the sealing of the aeration hole group.

6. The integrated sewage treatment equipment according to claim 5, characterized in that: An elastic driving member is arranged in the sleeve at one end of the outer tube away from the gas injection tube, and the elastic driving member includes a movable ring axially slidably arranged in the columnar movable cavity, the inner wall of the movable ring is tightly attached to the inner wall of the columnar movable cavity, and a resistance ring is axially extended and arranged on the side of the movable ring close to the inner tube to resist the outer ring of the bearing, and a return spring is arranged between the side of the movable ring away from the inner tube and the sealing plate; The elastic driving component also includes a movable shaft axially passing through the center of the sealing plate, the movable shaft and the sealing plate are slidingly sealed, and one end of the movable shaft inside the columnar movable cavity is fixedly connected to the movable ring through a fixed rod, and pull rods are evenly arranged along the circumferential direction on the outside of the movable shaft outside the columnar movable cavity, the pull rods are fixedly connected to the sealing ring outside the outer tube, and the pull rods are fixedly connected to the movable shaft through a connecting piece.

7. The integrated sewage treatment equipment according to claim 6, characterized in that: The aeration holes are strip-shaped and extend along the length direction of the outer tube.

8. The integrated sewage treatment equipment according to claim 6, characterized in that: A fixing ring is arranged on the outer tube between adjacent aeration hole groups. When the sealing ring is in the first position, one end thereof abuts against the fixing ring, and a sealing rubber tube is connected to the end of the sealing ring away from the fixing ring. The end of the sealing rubber tube away from the sealing ring is fixedly connected to the outer side wall of the outer tube.

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