Efficient integrated sewage treatment equipment

Abstract

The invention provides efficient integrated sewage treatment equipment which comprises a flocculation device, the flocculation device comprises a driving part, a transmission shaft, a dosing container and an impeller assembly, and the driving part is connected with the transmission shaft; the dosing container is communicated with the inner cavity of the transmission shaft; a plurality of medicine outlet holes are formed in the transmission shaft; the impeller assembly comprises a lower ring and an upper ring which coaxially sleeve the transmission shaft, and the lower ring and the upper ring are arranged at intervals in the axial direction of the transmission shaft; a plurality of blade sets are distributed between the lower ring and the upper ring in the circumferential direction at equal intervals. Each blade set comprises an inner blade and an outer blade which are arranged at intervals in the radial direction, and the inner blades and the outer blades are located in the same radial plane. The inner blades and the outer blades are each of a plate-shaped structure with two arc-shaped edges, the arc-shaped edges of the inner blades protrude towards the direction of the transmission shaft, and the arc-shaped edges of the outer blades protrude towards the direction opposite to the direction of the transmission shaft. According to the efficient integrated sewage treatment equipment, the flocculation effect of the whole space is effectively improved, and conditions are created for efficient precipitation.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a high-efficiency integrated sewage treatment device. Background Art

[0002] Integrated sewage treatment equipment is widely used in the treatment of urban and rural domestic sewage, among which the flocculation process has a great influence on the formation and growth of alum flocs and the precipitation of subsequent processes. The frame-type agitator impeller in the prior art generates a fluid that rotates around the transmission shaft for the flocculation process, but has the following shortcomings: 1. Since all the blades are vertically arranged on the frame of the same plane, the mutual collision effect of the alum flocs is poor in the height direction, which affects the mixing flocculation effect. 2. The fluid velocities in different radial directions are different, and the flocculation effect close to the transmission shaft is weaker than the flocculation effect far away from the transmission shaft, so that the flocculation effects in different radial directions are uneven. 3. The fluid in the flocculation tank has poor vertical and radial fluidity, which makes the flocculation effect of the entire space uneven. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-efficiency integrated sewage treatment equipment, which effectively improves the flocculation effect of the entire space and creates conditions for high-efficiency sedimentation.

[0004] In order to solve the above technical problems, the present invention provides a high-efficiency integrated sewage treatment equipment, including a flocculation device, which is installed in a flocculation tank; the flocculation device includes a driving member, a hollow transmission shaft, a dosing container and an impeller assembly, the driving member is fixed to the top of the flocculation tank body, the driving member is connected to the top of the transmission shaft, and the bottom end of the transmission shaft is connected to the bottom end of the flocculation tank body through a bearing; the dosing container and the impeller assembly are both installed on the transmission shaft, and the dosing container is located above the impeller assembly; the dosing container is connected to the inner cavity of the transmission shaft; the transmission shaft is connected to the bottom end of the flocculation tank body; the dosing container is connected to the inner cavity of the transmission shaft; the transmission shaft is connected to the impeller assembly; the dosing container is connected to the inner cavity of the transmission shaft; the transmission shaft is connected to the impeller assembly; the dosing container is connected to the inner cavity of the transmission shaft; the transmission shaft is connected to the impeller assembly; the dosing container is connected to the impeller assembly; the dosing container is connected to the impeller assembly; the impeller assembly ... A plurality of medicine outlet holes are provided; the impeller assembly comprises a lower ring and an upper ring which are coaxially sleeved on the transmission shaft, and the lower ring and the upper ring are spaced apart along the axial direction of the transmission shaft; a plurality of blade groups are distributed at equal intervals along the circumferential direction between the lower ring and the upper ring; each of the blade groups comprises inner blades and outer blades spaced apart along the radial direction, and the inner blades and the outer blades are located in the same radial plane; the inner blades are plate-like structures having two arc-shaped edges protruding toward the transmission shaft, and the outer blades are plate-like structures having two arc-shaped edges protruding away from the transmission shaft.

[0005] As a further improvement of the present invention, the top end of the dosing container is located above the liquid surface, and the bottom end is located below the liquid surface; a plurality of auxiliary blades are provided at the outer bottom end of the dosing container.

[0006] As a further improvement of the present invention, an upper auxiliary blade is provided on the lower surface of the upper ring and is located between the inner blade and the outer blade; when the upper auxiliary blade rotates with the transmission shaft, a rotating fluid moving downward with the transmission shaft as the center is generated between the inner blade and the outer blade.

[0007] As a further improvement of the present invention, a lower auxiliary blade is provided on the upper surface of the lower ring and is located between the inner blade and the outer blade; when the lower auxiliary blade rotates with the transmission shaft, a rotating fluid moving upward with the transmission shaft as the center is generated between the inner blade and the outer blade.

[0008] As a further improvement of the present invention, the impeller assembly is an axially symmetrical structure.

[0009] As a further improvement of the present invention, an upper blade and a lower blade are horizontally arranged in the middle of the transmission shaft, and the bottom end of the upper blade is connected to the top end of the lower blade; when the upper blade rotates with the transmission shaft, a rotating fluid moving upward with the transmission shaft as the center is generated, and when the lower blade rotates with the transmission shaft, a rotating fluid moving downward with the transmission shaft as the center is generated.

[0010] As a further improvement of the present invention, the axial symmetric plane of the impeller assembly is used as the interface, the upper blades are located above the interface, and the lower blades are located below the interface.

[0011] As a further improvement of the present invention, the number of the blade groups is 2 to 4 groups.

[0012] As a further improvement of the present invention, the uppermost medicine outlet hole on the transmission shaft is located below the upper end surface of the impeller assembly, and the lowermost medicine outlet hole is located above the lower end surface of the impeller assembly.

[0013] As a further improvement of the present invention, the distance between the uppermost medicine outlet hole on the transmission shaft and the upper end surface of the impeller assembly is 100-300 mm, and the distance between the lowermost medicine outlet hole on the transmission shaft and the lower end surface of the impeller assembly is 100-300 mm.

[0014] The present invention provides a high-efficiency integrated sewage treatment equipment, which vertically arranges arc-shaped inner blades and outer blades. The inner blades produce a double-trumpet-shaped inner annular fluid, and the outer blades produce a waist-drum-shaped outer annular fluid, thereby achieving continuous collision and growth of flocs in the radial and height directions of the entire circumference, continuously accelerating the agglomeration of flocs, and improving the rapid and efficient precipitation of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a flocculation device of a high-efficiency integrated sewage treatment equipment provided by an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the impeller assembly.

[0016] The figure includes: driving part 1, transmission shaft 2, medicine outlet 21, upper blade 3, lower blade 4, impeller assembly 5, lower ring 51, lower auxiliary blade 511, upper ring 52, upper auxiliary blade 521, outer blade 53, inner blade 54, bearing 6, dosing container 7, and auxiliary blade 71. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0018] The embodiment of the present invention provides a high-efficiency integrated sewage treatment equipment, including a flocculation device, which is installed in a flocculation tank. Figure 1 As shown, the flocculation device includes a driving member 1, a hollow transmission shaft 2, a dosing container 7 and an impeller assembly 5. The driving member 1 is fixed to the top of the flocculation tank body, the driving member 1 is connected to the top of the transmission shaft 2, and the bottom end of the transmission shaft 2 is connected to the bottom end of the flocculation tank body through a bearing 6. The dosing container 7 and the impeller assembly 5 are both installed on the transmission shaft 2, and the dosing container 7 is located above the impeller assembly 5.

[0019] The dosing container 7 is a thin-walled cylinder with an opening at the upper end, which is used to contain the coagulant. The dosing container 7 is coaxially arranged with the transmission shaft 2 and rotates synchronously with the transmission shaft. The circumference of the shaft wall of the transmission shaft located in the dosing container 7 is provided with a plurality of drug inlet holes, and the dosing container is connected with the inner cavity of the transmission shaft 2 through the drug inlet holes. The circumference of the shaft wall of the transmission shaft located in the impeller assembly is provided with a plurality of drug outlet holes 21. When in use, the coagulant is added to the dosing container 7, and the coagulant enters the inner cavity of the transmission shaft 2 through the drug inlet hole, and then enters the flocculation tank through the drug outlet hole 21.

[0020] Preferably, the top of the dosing container 7 is located above the liquid surface, and the bottom is located below the liquid surface. A plurality of auxiliary blades 71 are provided at the outer bottom of the dosing container 7. When the transmission shaft rotates, the dosing container 7 rotates synchronously with the transmission shaft. The auxiliary blades 71 generate radial fluid below the liquid surface to stir and mix the fluid containing flocs and coagulant aids, so that the flocs are continuously mixed, collided and agglomerated within the rotation radius of the auxiliary blades, accelerating the growth process of the flocs. At the same time, the fluid is prevented from floating up, so that the upward fluid changes direction and moves around, collides with the surrounding fluid again, and the flocs are continuously agglomerated and enlarged.

[0021] like Figure 2As shown, the impeller assembly 5 includes a lower ring 51 and an upper ring 52 coaxially sleeved on the transmission shaft, and the lower ring 51 and the upper ring 52 are spaced apart along the axial direction of the transmission shaft. The lower ring 51 is located below the lower blade 4, and the upper ring 52 is located between the upper blade 3 and the bottom end of the dosing container. A plurality of blade groups are evenly spaced along the circumferential direction between the lower ring 51 and the upper ring 52, and the number of blade groups is 2 to 4 groups. Each blade group includes an inner blade 54 and an outer blade 53 spaced apart along the radial direction, and the inner blade and the outer blade are located in the same radial plane. The inner blade 54 is a plate-like structure having two arc-shaped edges protruding toward the transmission shaft, and the outer blade 53 is a plate-like structure having two arc-shaped edges protruding away from the transmission shaft.

[0022] Preferably, the impeller assembly 5 is an axially symmetrical structure, and the axial symmetry plane of the impeller assembly 5 serves as the interface.

[0023] When the inner blades 54 rotate, a double trumpet-shaped inner annular fluid is generated which rotates around the transmission shaft 2 and is symmetrical up and down about the interface. Above the interface, the trumpet mouth faces upward, and below the interface, the trumpet mouth faces downward. The outer circle of the inner annular fluid is the outer edge of the inner blades, and the inner circle of the inner annular fluid is the inner edge of the inner blades.

[0024] From the interface upward to the upper end surface of the inner annular fluid, the tangential flow velocities of the inner and outer rings of the inner annular fluid gradually increase. Inner ring of the inner annular fluid: 1. The inner ring of the inner annular fluid and the fluid near the inner ring mix and collide with each other, so that flocs in different motion states collide and agglomerate with each other, accelerating the growth of flocs, and the radial agglomeration effect of flocs on the entire circumference gradually increases from bottom to top. 2. The gradually agglomerated and enlarged flocs constantly collide and mix with the flocs formed by the coagulant sprayed outward from the medicine outlet of the transmission shaft and the surrounding water body, making the flocs larger again. 3. The fluid at the top and the radial fluid formed by the auxiliary blades 71 mix and squeeze each other, making the flocs agglomerate and enlarge again. 4. Since the tangential flow velocities of the fluids at different heights are different, and the inner annular fluid is trumpet-shaped and in an unstable state, the inner annular fluid has different inward diffusion effects at different heights, thereby strengthening the inward turbulence effect of the inner annular fluid, thereby accelerating the three-dimensional mixing and agglomeration of flocs. 5. Due to the different tangential velocity of the fluid in the height direction and the coverage in the radial direction, the flow performance in the depth direction is improved to achieve the spatial agglomeration effect of the flocs within the inner circle. The outer circle of the inner annular fluid: 1. The outer circle of the inner annular fluid mixes and collides with the fluid near the outer circle, so that the flocs in different motion states collide and agglomerate with each other, accelerating the growth of the flocs. The radial agglomeration effect of the flocs in the entire circumference gradually increases from bottom to top. 2. Due to the different tangential flow velocities of the fluids at different heights, and the shape of the inner annular fluid is trumpet-shaped and in an unstable state, the outward diffusion effect of the inner annular fluid is also different, thereby strengthening the turbulent effect of the inner annular fluid outward, thereby accelerating the three-dimensional mixing and agglomeration of the flocs. 3. Due to the different tangential velocity and coverage of the fluid in the height direction, the flow performance in the depth direction is improved to achieve the spatial agglomeration effect of the flocs outside the outer circle.

[0025] From the interface downward to the lower end surface of the inner annular fluid, the tangential flow velocities of the inner and outer rings of the inner annular fluid gradually increase. Inner ring of the inner annular fluid: 1. The inner ring of the inner annular fluid mixes and collides with the fluid near the inner ring, so that flocs in different motion states collide and agglomerate with each other, accelerating the growth of flocs, and the radial agglomeration effect of flocs in the entire circumferential direction gradually increases from top to bottom. 2. The gradually agglomerated and enlarged flocs constantly collide and mix with the flocs formed by the coagulant sprayed outward from the medicine outlet 21 of the transmission shaft and the surrounding water body, making the flocs larger again. 3. The fluid at the bottom mixes and squeezes with the fluid at the bottom of the pool, which again makes the flocs agglomerate and enlarge. 4. Since the tangential flow velocities of the fluids at different heights are different, and the shape of the inner annular fluid is trumpet-shaped and in an unstable state, the inward diffusion effect of the inner annular fluid is also different, thereby strengthening the inward turbulence effect of the inner annular fluid, thereby accelerating the three-dimensional mixing and agglomeration of flocs. 5. Due to the different tangential velocity of the fluid in the height direction and the coverage in the radial direction, the flow performance in the depth direction is improved to achieve the spatial agglomeration effect of the flocs within the inner circle. The outer circle of the inner annular fluid: 1. The outer circle of the inner annular fluid mixes and collides with the fluid near the outer circle, so that the flocs in different motion states collide and agglomerate with each other, accelerating the growth of the flocs, and the radial agglomeration effect of the flocs in the entire circumference gradually increases from top to bottom. 2. The fluid at the bottom and the fluid at the bottom of the pool mix and squeeze each other, which again increases the agglomeration of the flocs. 3. Due to the different tangential flow velocities of the fluids at different heights, and the shape of the inner annular fluid is trumpet-shaped and in an unstable state, the outward diffusion effect of the inner annular fluid is also different, thereby strengthening the turbulent effect of the inner annular fluid outward, thereby accelerating the three-dimensional mixing and agglomeration of the flocs. 4. Due to the different tangential velocity and coverage of the fluid in the height direction, the flow performance in the depth direction is improved to achieve the spatial agglomeration effect of the flocs outside the outer circle.

[0026] When the outer blade 53 rotates, a drum-shaped outer annular fluid is generated which rotates around the transmission shaft 2 and is symmetrical up and down with respect to the interface. The outer circle of the outer annular fluid is the outer edge of the outer blade, and the inner circle of the outer annular fluid is the inner edge of the outer blade.

[0027] From the interface upward to the upper end surface of the outer annular fluid, the tangential flow velocity of the inner and outer circles of the outer annular fluid gradually decreases. Inner circle of the outer annular fluid: 1. The inner circle of the outer annular fluid and the outer circle of the inner annular fluid formed by the inner blades, as well as the mixed fluid after the action of the fluid near the outer circle of the inner annular fluid, mix and collide with each other, so that the flocs in two different motion states collide and agglomerate with each other, accelerating the growth of the flocs. As the tangential flow velocity of the inner annular fluid gradually increases from bottom to top, the outer circle of the inner annular fluid gradually diffuses outward, and the tangential flow velocity of the outer annular fluid gradually decreases. The inner circle of the outer annular fluid will gradually diffuse inward and decrease. At the same time, the distance between the inner annular fluid and the outer annular fluid gradually decreases, thereby balancing the radial agglomeration effect of the flocs between the inner blades and the outer blades in the height direction, so that the flocs are evenly distributed in the height direction. 2. The fluid on the upper end surface mixes and squeezes with the fluid near the liquid surface, which again increases the agglomeration of the flocs. 3. Since the tangential flow velocity of the fluid at different heights is different, and the outer annular fluid is in a waist drum shape and is in an unstable state, the inward diffusion effect of the outer annular fluid is also different, thereby strengthening the turbulent effect of the annular fluid inward, thereby accelerating the three-dimensional mixing and agglomeration of flocs. 4. Since the tangential velocity of the fluid in the height direction and the coverage range in the radial direction are different, the flow performance in the depth direction is improved to achieve the spatial agglomeration effect of flocs within the inner circle. The outer circle of the outer annular fluid: 1. The outer circle of the outer annular fluid mixes and collides with the fluid near the outer circle, so that flocs in different motion states collide and agglomerate with each other, accelerating the growth of flocs, and the radial agglomeration effect of flocs in the entire circumference gradually increases from top to bottom. 2. Since the tangential flow velocity of the fluid at different heights is different, and the outer annular fluid is in a waist drum shape and is in an unstable state, the outward diffusion effect of the outer annular fluid is also different, thereby strengthening the outward turbulent effect of the outer annular fluid, thereby accelerating the three-dimensional mixing and agglomeration of flocs. 3. Due to the different tangential velocity and coverage of the fluid in the height direction, the flow performance in the depth direction is improved to achieve the spatial agglomeration effect of the flocs. 4. As the distance between the outer blade and the pool wall gradually increases from bottom to top, and the tangential velocity of the fluid gradually decreases, the collision and mixing effects of the flocs from bottom to top are different, causing the fluid to deflect inward. During the movement, it continuously mixes with the fluid above, which accelerates the agglomeration process of the flocs. 5. After the mixed fluid moves upward to the vicinity of the liquid surface, it moves in the direction of the transmission shaft, collides and mixes with the fluid near the liquid surface, and further agglomerates the flocs. 6. During the movement, the radial fluid moving toward the outer circle generated by the auxiliary blade 71 mixes and collides with each other. Since the two fluids flow in opposite directions, the mutual collision and agglomeration of the flocs are strengthened. 7. Under the action of the upper auxiliary blade 521, the fluid after interaction changes direction and moves downward between the inner blade and the outer blade, and then repeats the movement and agglomeration process of the flocs under the joint action of the inner blade and the outer blade, accelerating the precipitation of impurities.

[0028] From the interface downward to the lower end surface of the outer annular fluid, the tangential flow velocities of the inner and outer circles of the outer annular fluid gradually decrease. Inner circle of the outer annular fluid: 1. The inner circle of the outer annular fluid and the outer circle of the inner annular fluid formed by the inner blades, as well as the mixed fluid after the action of the fluid near the outer circle of the inner annular fluid, mix and collide with each other, so that the flocs in two different motion states collide and agglomerate with each other, accelerating the growth of the flocs. As the tangential flow velocity of the inner annular fluid gradually increases from bottom to top, the outer circle of the inner annular fluid gradually diffuses outward, and the tangential flow velocity of the outer annular fluid gradually decreases. The inner circle of the outer annular fluid will gradually diffuse inward and decrease. At the same time, the distance between the inner annular fluid and the outer annular fluid gradually decreases, thereby balancing the radial agglomeration effect of the flocs between the inner blades and the outer blades in the height direction, so that the flocs are evenly distributed in the height direction. 2. Since the tangential flow velocities of the fluids at different heights are different, and the outer annular fluid is in the shape of a waist drum, the inward diffusion effect of the outer annular fluid is also different, thereby strengthening the inward turbulence effect of the annular fluid, thereby accelerating the three-dimensional mixing and agglomeration of the flocs. 3. Due to the different tangential velocity of the fluid in the height direction and the different coverage in the radial direction, the spatial agglomeration effect of the flocs within the inner circle is achieved. 4. The fluid on the lower end surface and the fluid on the bottom of the pool are mixed and squeezed with each other, which increases the agglomeration of the flocs again. The outer circle of the outer annular fluid: 1. The outer circle of the outer annular fluid and the fluid near the outer circle are mixed and collided with each other, so that the flocs in different motion states collide and agglomerate with each other, accelerating the growth of the flocs, and the radial agglomeration effect of the flocs in the entire circumference is gradually enhanced from bottom to top. 2. Due to the different tangential flow velocities of the fluids at different heights, and the outer annular fluid is waist-drum-shaped and in an unstable state, the outward diffusion effect of the outer annular fluid is also different, thereby strengthening the turbulent effect of the outer annular fluid outward, thereby accelerating the three-dimensional mixing and agglomeration of the flocs. 3. Due to the different tangential velocity and coverage of the fluid in the height direction, the flow performance in the depth direction is improved to achieve the spatial agglomeration effect of the flocs. 4. As the distance between the outer blade and the pool wall gradually increases from top to bottom, and the tangential velocity of the fluid gradually decreases, the collision and mixing effects of the flocs from top to bottom are different, causing the fluid to deflect inward. During the movement, it continuously mixes with the fluid below, accelerating the floc agglomeration process. 5. The mixed fluid moves downward to the bottom of the pool and moves in the direction of the transmission shaft, collides and mixes with the fluid at the bottom of the pool, further agglomerating the flocs. 6. During the movement, the fluid moves and collides with the downward-moving fluid generated by the lower blade 4. Since the flow directions of the two fluids are perpendicular, the mutual collision and agglomeration of the flocs are strengthened. 7. Under the action of the lower auxiliary blade 511, the fluid changes direction after interaction and moves upward between the inner blade and the outer blade, and then repeats the floc movement and agglomeration process under the joint action of the inner blade and the outer blade, accelerating the precipitation of impurities.

[0029] In the above embodiment, arc-shaped inner blades and outer blades are vertically arranged, the inner blades produce a double-trumpet-shaped inner annular fluid, and the outer blades produce a waist-drum-shaped outer annular fluid, thereby achieving continuous collision and growth of flocs in the radial and height directions of the entire circumference, continuously accelerating the agglomeration of flocs, and improving the rapid and efficient precipitation of impurities.

[0030] Preferably, an upper auxiliary blade 521 is provided on the lower surface of the upper ring 52 and is located between the inner blade 54 and the outer blade 53. The upper auxiliary blade 521 is tilted downwardly, and when the transmission shaft rotates, the upper auxiliary blade 521 generates a rotating fluid moving downward with the transmission shaft as the center between the inner blade 54 and the outer blade 53. A lower auxiliary blade 511 is provided on the upper surface of the lower ring 51 and is located between the inner blade 54 and the outer blade 53. The lower auxiliary blade 511 is tilted upwardly, and when the transmission shaft rotates, the lower auxiliary blade 511 generates a rotating fluid moving upward with the transmission shaft as the center between the inner blade 54 and the outer blade 53.

[0031] The fluid above the impeller assembly changes direction and moves downward between the inner blades and the outer blades under the action of the upper auxiliary blades 521. The fluid below the impeller assembly changes direction and moves upward between the inner blades and the outer blades under the action of the lower auxiliary blades 511. On the one hand, the fluid moving downward and the fluid moving upward collide and mix with each other near the interface, causing the flocs to grow continuously. On the other hand, the fluids above and below the interface are remixed to form a new mixed fluid, causing the fluids above and below the interface to continuously change positions. Under the joint action of the inner blades and the outer blades, the floc movement and agglomeration process are repeated, accelerating the sedimentation effect.

[0032] As a preferred example, an upper blade 3 and a lower blade 4 are horizontally arranged in the middle of the transmission shaft 2, the bottom end of the upper blade 3 is connected to the top end of the lower blade 4, and the upper blade 3 and the lower blade 4 are located between the inner blade and the transmission shaft. Preferably, the upper blade 3 is located above the interface, and the lower blade 4 is located below the interface.

[0033] The upper blades 3 are arranged upwardly at an angle. When the transmission shaft rotates, the upper blades 3 generate a rotating fluid that moves upward with the transmission shaft as the center. During the upward movement of the fluid, it is constantly mixed with the coagulant sprayed outward from the medicine outlet 21 of the transmission shaft, so that the coagulant is fully dissolved in the fluid, and the flocs in the fluid are continuously increased near the transmission shaft. The continuously increasing flocs are continuously mixed and collided with the coagulant sprayed from the upper medicine outlet again during the upward movement of the fluid, so that the flocs are continuously increased in the height direction. Most of the fluid generated by the upper blades and the coagulant are mixed and moved upward, and a small part of the fluid flows out tangentially around the transmission shaft, and an inner annular fluid is generated under the action of the inner blades of the impeller assembly, and a flocculation process in different directions is carried out, increasing the collision and agglomeration of the flocs in different directions. The lower blades 4 are arranged downwardly at an angle. When the transmission shaft rotates, the lower blades 4 generate a rotating fluid that moves downward with the transmission shaft as the center. During the downward movement of the fluid, it is constantly mixed with the coagulant sprayed outward from the medicine outlet 21 of the transmission shaft, so that the coagulant is fully dissolved in the water body, and the flocs in the water body are constantly growing near the transmission shaft. The growing flocs are constantly mixed and collided with the coagulant sprayed from the medicine outlet below as the fluid moves downward, so that the flocs continue to grow in height. Most of the fluid produced by the lower blades is mixed with the medicine and moves downward, and a small part of the fluid flows out tangentially around the transmission shaft. Under the action of the inner blades of the impeller assembly, an inner annular fluid is generated, and the flocculation process in different directions is carried out, increasing the collision and agglomeration of the flocs in different directions.

[0034] In the above embodiment, by providing the upper blades and the lower blades, the flocs are continuously collided and grown in the height direction along the transmission shaft, so that the flocs are continuously enlarged, creating favorable conditions for the subsequent continuous agglomeration of the flocs.

[0035] Preferably, the top medicine outlet hole on the transmission shaft is located below the upper end surface of the impeller assembly, and the bottom medicine outlet hole is located above the lower end surface of the impeller assembly. Preferably, the distance between the top medicine outlet hole on the transmission shaft and the upper end surface of the impeller assembly is 100-300 mm, and the distance between the bottom medicine outlet hole on the transmission shaft and the lower end surface of the impeller assembly is 100-300 mm. This allows the growing flocs to continuously agglomerate in the radial direction under the action of the impeller assembly.

[0036] The working process of the efficient integrated sewage treatment equipment of the above preferred embodiment is as follows: The coagulant is added into the dosing container 7 , and enters the inner cavity of the transmission shaft 2 through the drug inlet hole, and then enters the flocculation tank through the drug outlet hole 21 .

[0037] The driving member 1 drives the transmission shaft 2 to rotate, thereby driving the upper blade 3 , the lower blade 4 , the inner blade 54 , the outer blade 53 , the auxiliary blade 71 , the upper auxiliary blade 521 , and the lower auxiliary blade 511 to rotate.

[0038] Above the interface: The upper blade 3 rotates to generate a rotating fluid that moves upward with the transmission shaft as the center. During the upward movement of the fluid, the fluid is continuously mixed with the coagulant sprayed outward from the medicine outlet 21 of the transmission shaft, so that the coagulant is fully dissolved in the fluid, and the flocs in the fluid are continuously enlarged near the transmission shaft. The continuously enlarged flocs are continuously mixed and collided with the coagulant sprayed from the upper medicine outlet again during the upward movement of the fluid, so that the flocs are continuously grown in the height direction. Most of the fluid generated by the upper blades is mixed with the coagulant and moves upward, and a small part of the fluid flows out tangentially around the transmission shaft. Under the action of the inner blades 54, an inner annular fluid is generated, and a flocculation process in different directions is carried out to increase the collision and agglomeration of the flocs in different directions.

[0039] The inner blades 54 rotate to produce an inner annular fluid with an opening facing upward that rotates around the transmission shaft 2. The inner ring of the inner annular fluid mixes and collides with the fluid near the inner ring, causing flocs in different motion states to collide and agglomerate with each other, accelerating the growth of the flocs, and the radial agglomeration effect of the flocs in the entire circumferential direction gradually increases from bottom to top. The gradually agglomerated and enlarged flocs constantly collide and mix with the flocs formed by the coagulant sprayed outward from the medicine outlet of the transmission shaft and the surrounding water body under the action of the upper blades, making the flocs larger again. The fluid at the top and the radial fluid formed by the auxiliary blades 71 mix and squeeze with each other, causing the flocs to agglomerate and increase again. The outer ring of the inner annular fluid mixes and collides with the fluid near the outer ring, causing the flocs in different motion states to collide and agglomerate with each other, accelerating the growth of the flocs, and the radial agglomeration effect of the flocs in the entire circumference gradually increases from bottom to top.

[0040] The outer blade 53 rotates to generate a semi-waist drum-shaped outer annular fluid that rotates around the transmission shaft 2. The inner ring of the outer annular fluid and the outer ring of the inner annular fluid formed by the inner blades, as well as the mixed fluid after the action of the fluid near the outer ring of the inner annular fluid, mix and collide with each other, so that the flocs in two different motion states collide and agglomerate with each other, accelerating the growth of the flocs. The fluid on the upper end surface and the fluid near the liquid surface mix and squeeze with each other, again increasing the agglomeration of the flocs. The outer ring of the outer annular fluid and the fluid near the outer ring mix and collide with each other, so that the flocs in different motion states collide and agglomerate with each other, accelerating the growth of the flocs. Since the distance between the outer blade and the pool wall gradually increases from bottom to top, and the tangential velocity of the fluid gradually decreases, the collision and mixing effects of the flocs from bottom to top are different, so that the upward moving fluid deflects inward, and continuously mixes with the fluid above during the movement, accelerating the agglomeration process of the flocs. After the mixed fluid moves upward to the vicinity of the liquid surface, it moves toward the transmission axis, collides and mixes with the fluid near the liquid surface, further agglomerating the flocs.

[0041] The auxiliary blades 71 rotate to generate radial fluid, stirring and mixing the liquid containing flocs and coagulant below the liquid surface, so that the flocs are continuously mixed, collided and agglomerated between the inner blades and the transmission shaft, accelerating the growth of the flocs. At the same time, it prevents other fluids from floating up, causing them to change direction and move around, colliding with the surrounding fluids again, so that the flocs continue to agglomerate and grow.

[0042] The upward fluid generated by the upper blades 3 flows to the uppermost end and moves around under the action of the auxiliary blades 71. The outer annular fluid generated by the outer blades moves to the vicinity of the liquid surface and then moves toward the transmission shaft, colliding with the radial fluid generated by the auxiliary blades 71.

[0043] Below the interface: The rotation of the lower blade 4 generates a rotating fluid moving downward with the transmission shaft as the center. During the downward movement of the fluid, it continuously mixes with the coagulant sprayed outward from the medicine outlet 21 of the transmission shaft, so that the coagulant is fully dissolved in the fluid, and the flocs in the fluid continuously grow between the inner blade and the transmission shaft. The continuously growing flocs continuously mix and collide with the coagulant sprayed from the lower medicine outlet again during the downward movement, so that the flocs continue to grow in the height direction. Most of the fluid generated by the lower blades and the coagulant are mixed and move downward, and a small part of the fluid flows out tangentially around the transmission shaft. Under the action of the inner blades, an inner annular fluid is generated, and the flocculation process in different directions is carried out, increasing the collision and agglomeration of the flocs in different directions.

[0044] The inner blades rotate to produce a trumpet-shaped inner annular fluid with an opening facing downward that rotates around the transmission shaft 2. The inner ring of the inner annular fluid mixes and collides with the fluid near the inner ring, causing flocs in different motion states to collide and agglomerate with each other, accelerating the growth of the flocs, and the radial agglomeration effect of the flocs on the entire circumference gradually increases from top to bottom. The gradually agglomerated and enlarged flocs constantly collide and mix with the flocs formed by the coagulant sprayed outward from the medicine outlet 21 of the transmission shaft and the surrounding water body, once again making the flocs larger. The fluid at the bottom and the fluid at the bottom of the pool mix and squeeze each other, again making the flocs agglomerate and enlarge. The outer ring of the inner annular fluid and the fluid near the outer ring mix and collide with each other, causing flocs in different motion states to collide and agglomerate with each other, accelerating the growth of the flocs, and the radial agglomeration effect of the flocs on the entire circumference gradually increases from top to bottom. The fluid at the bottom and the fluid at the bottom of the pool mix and squeeze each other, again making the flocs agglomerate and enlarge.

[0045] The outer blades rotate to generate a semi-waist drum-shaped outer annular fluid that rotates around the transmission shaft 2. The inner ring of the outer annular fluid and the outer ring of the inner annular fluid formed by the inner blades, as well as the mixed fluid after the action of the fluid near the outer ring of the inner annular fluid, mix and collide with each other, so that the flocs in two different motion states collide and agglomerate with each other, accelerating the growth of the flocs. The fluid on the lower end surface and the fluid at the bottom of the pool mix and squeeze with each other, which again increases the agglomeration of the flocs. The outer ring of the outer annular fluid and the fluid near the outer ring mix and collide with each other, so that the flocs in different motion states collide and agglomerate with each other, accelerating the growth of the flocs. As the distance between the outer blades and the pool wall gradually increases from top to bottom, and the tangential velocity of the fluid gradually decreases, the collision and mixing effects of the flocs from bottom to top are different, so that the fluid moving downward deflects inward, and during the movement, it continuously mixes with the fluid below, accelerating the agglomeration process of the flocs. The mixed fluid moves downward to the bottom of the pool and moves toward the transmission shaft, collides and mixes with the fluid at the bottom of the pool, further agglomerating the flocs.

[0046] The downwardly flowing fluid generated by the lower blades 4 flows to the lowest end and moves around under the action of the pool bottom. The outer annular fluid generated by the outer blades moves to the bottom of the pool and then moves toward the transmission shaft, and the fluids at the bottom of the pool collide with each other.

[0047] The fluid above the impeller assembly changes direction and moves downward between the inner blades and the outer blades under the action of the upper auxiliary blades 521. The fluid below the impeller assembly changes direction and moves upward between the inner blades and the outer blades under the action of the lower auxiliary blades 511. The downward moving fluid and the upward moving fluid collide and mix with each other near the interface, causing the flocs to grow continuously. The fluids above and below the interface are mixed three-dimensionally in the axial and radial directions (fluids formed by the inner blades, upper blades, and lower blades) at the same time to achieve spatial flocculation effect, and are remixed to form a new mixed fluid, so that the fluids above and below the interface constantly change their positions, and the floc movement and agglomeration process is repeated under the joint action of the inner blades and the outer blades, accelerating the sedimentation effect.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above specific embodiments. The above specific embodiments and the description in the specification are only for further illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of the present invention to be protected is defined by the claims and their equivalents.

Claims

1. A high-efficiency integrated sewage treatment equipment, characterized in that: The invention comprises a flocculation device, which is installed in a flocculation tank; the flocculation device comprises a driving member (1), a hollow transmission shaft (2), a dosing container (7) and an impeller assembly (5); the driving member (1) is fixed to the top of the flocculation tank body, the driving member (1) is connected to the top of the transmission shaft (2), and the bottom of the transmission shaft (2) is connected to the bottom of the flocculation tank body through a bearing (6); the dosing container (7) and the impeller assembly (5) are both installed on the transmission shaft (2), and the dosing container is located above the impeller assembly; the dosing container is connected to the inner cavity of the transmission shaft (2); a plurality of drug outlet holes (2) are provided on the transmission shaft (2) 1); the impeller assembly (5) comprises a lower ring (51) and an upper ring (52) coaxially sleeved on a transmission shaft, the lower ring (51) and the upper ring (52) being spaced apart along the axial direction of the transmission shaft; a plurality of blade groups are distributed between the lower ring (51) and the upper ring (52) at equal intervals along the circumferential direction; each of the blade groups comprises inner blades and outer blades spaced apart along the radial direction, the inner blades and the outer blades being located in the same radial plane; the inner blades are plate-like structures having two arc-shaped edges protruding toward the transmission shaft direction, and the outer blades are plate-like structures having two arc-shaped edges protruding away from the transmission shaft direction.

2. The high-efficiency integrated sewage treatment equipment according to claim 1 is characterized in that: The top end of the medicine adding container (7) is located above the liquid surface, and the bottom end is located below the liquid surface; a plurality of auxiliary blades (71) are provided at the outer bottom end of the medicine adding container (7).

3. The high-efficiency integrated sewage treatment equipment according to claim 1 is characterized in that: An upper auxiliary blade (521) is provided on the lower surface of the upper ring (52) and is located between the inner blade and the outer blade; when the upper auxiliary blade (521) rotates along with the transmission shaft, a rotating fluid moving downward with the transmission shaft as the center is generated between the inner blade and the outer blade.

4. The high-efficiency integrated sewage treatment equipment according to claim 1 is characterized in that: The upper surface of the lower ring (51) is provided with a lower auxiliary blade (511) located between the inner blade and the outer blade; when the lower auxiliary blade (511) rotates along with the transmission shaft, a rotating fluid moving upward with the transmission shaft as the center is generated between the inner blade and the outer blade.

5. The high-efficiency integrated sewage treatment equipment according to claim 1 is characterized in that: The impeller assembly (5) is an axially symmetrical structure.

6. The high-efficiency integrated sewage treatment equipment according to claim 1 is characterized in that: An upper blade (3) and a lower blade (4) are horizontally arranged in the middle of the transmission shaft (2), and the bottom end of the upper blade (3) is connected to the top end of the lower blade (4); when the upper blade (3) rotates with the transmission shaft, a rotating fluid moving upward with the transmission shaft as the center is generated, and when the lower blade (4) rotates with the transmission shaft, a rotating fluid moving downward with the transmission shaft as the center is generated.

7. The high-efficiency integrated sewage treatment equipment according to claim 6 is characterized in that: The axial symmetry plane of the impeller assembly (5) is used as an interface, the upper blades are located above the interface, and the lower blades are located below the interface.

8. The high-efficiency integrated sewage treatment equipment according to claim 1 is characterized in that: The number of the blade groups is 2 to 4.

9. The high-efficiency integrated sewage treatment equipment according to claim 1, characterized in that: The uppermost medicine outlet hole on the transmission shaft is located below the upper end surface of the impeller assembly, and the lowermost medicine outlet hole is located above the lower end surface of the impeller assembly.

10. The high-efficiency integrated sewage treatment equipment according to claim 9, characterized in that: The distance between the uppermost medicine outlet hole on the transmission shaft and the upper end surface of the impeller assembly is 100-300 mm, and the distance between the lowermost medicine outlet hole on the transmission shaft and the lower end surface of the impeller assembly is 100-300 mm.

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