Integrated sewage treatment method

Abstract

The invention provides an integrated sewage treatment method which comprises the following steps: step 10, adding a coagulant aid into a dosing container, enabling the coagulant aid to enter an inner cavity of a transmission shaft through a medicine inlet hole, and then enabling the coagulant aid to enter a flocculation basin through a medicine outlet hole; step 20, driving a transmission shaft to rotate by a driving part, and driving a dosing container, an upper blade, a lower blade and an impeller assembly to rotate; 30, the upper blade and the lower blade rotate to generate rotating fluid moving upwards and downwards with the transmission shaft as the center respectively, the rotating fluid is continuously mixed with coagulant aids sprayed outwards from the medicine outlet holes in the upward and downward moving process, flocs in the fluid are continuously increased near the transmission shaft, and the flocculation effect in the height direction is improved; a small part of fluid tangentially flows out towards the periphery of the transmission shaft, flocculation processes in different directions are carried out under the action of the impeller assembly, and collision and agglomeration of flocs in different directions are increased. According to the integrated sewage treatment method provided by the invention, 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 an integrated sewage treatment method. 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 an integrated sewage treatment method, which effectively improves the flocculation effect of the entire space and creates conditions for efficient sedimentation.

[0004] In order to solve the above technical problems, the present invention provides an integrated sewage treatment method, comprising the following steps: Step 10, adding a coagulant to the dosing container, the coagulant enters the inner cavity of the transmission shaft through the drug inlet hole, and then enters the flocculation tank through the drug outlet hole; Step 20, the driving member drives the transmission shaft to rotate, driving the dosing container, the upper blades, the lower blades and the impeller assembly to rotate; Step 30, the upper blades rotate 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 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 enlarged 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, and an annular fluid is generated under the action of the impeller assembly, and a flocculation process in different directions is performed, thereby increasing the collision and agglomeration of flocs in different directions; The rotation of the lower blades generates a rotating fluid that moves downward with the transmission shaft as the center. During the downward movement of the fluid, the fluid is continuously mixed with the coagulant sprayed outward from the medicine outlet of the transmission shaft, so that the coagulant is fully dissolved in the fluid, causing the flocs in the fluid to continuously grow between the inner blades and the transmission shaft; the continuously growing flocs are continuously mixed and collided with the coagulant sprayed from the lower medicine outlet during the downward movement, causing the flocs to continuously grow in height; most of the fluid generated by the lower blades is mixed with the coagulant and moves downward, and a small part of the fluid flows out tangentially around the transmission shaft, generating annular fluid under the action of the impeller assembly, undergoing flocculation processes in different directions, thereby increasing the collision and agglomeration of flocs in different directions.

[0005] As a further improvement of the present invention, it also includes: In step 40, the auxiliary blades 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, thereby 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.

[0006] As a further improvement of the present invention, it also includes: Step 50, the inner blades rotate to generate a double trumpet-shaped inner annular fluid that rotates around the transmission shaft and is symmetrical about the interface; Above the interface, the inner circle of the inner annular fluid and the fluid near the inner circle 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 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 drug 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 mix and squeeze with each other, making the flocs agglomerate and enlarge again; the outer circle of the inner annular fluid and the fluid near the outer circle 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 in the entire circumference gradually increases from bottom to top; Below the interface, the inner circle of the inner annular fluid and the fluid near the inner circle 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 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 of the transmission shaft and the surrounding water body, making the flocs larger again; the fluid at the lower end and the fluid at the bottom of the pool mix and squeeze each other, making the flocs agglomerate and enlarge again; the outer circle of the inner annular fluid and the fluid near the outer circle 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 top to bottom; the fluid at the lower end and the fluid at the bottom of the pool mix and squeeze each other, making the flocs agglomerate and enlarge again.

[0007] As a further improvement of the present invention, it also includes: Step 60, the outer blades rotate to generate a waist-drum-shaped outer annular fluid that rotates around the transmission shaft and is symmetrical about the interface; Above the interface, 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 with 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; 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 circle of the outer annular fluid and the fluid near the outer circle 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, and the radial agglomeration effect of the flocs on the entire circumference gradually increases from top to bottom; because 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 is continuously mixed with the upper fluid during the movement, accelerating the agglomeration process of the flocs; the mixed fluid moves upward to the vicinity of the liquid surface and then moves toward the transmission axis, collides and mixes with the fluid near the liquid surface, further agglomerating the flocs; Below the interface, 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; the fluid on the lower end face and the fluid at the bottom of the pool mix and squeeze with each other, again increasing the agglomeration of the flocs; the outer circle of the outer annular fluid and the fluid near the outer circle 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, and the radial agglomeration effect of the flocs on the entire circumference gradually decreases from top to bottom; because 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 bottom to top are different, so that the fluid moving downward deflects inward, and during the movement, it is continuously mixed with the fluid below, accelerating the agglomeration process of the flocs; 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.

[0008] As a further improvement of the present invention, it also includes: Step 70, 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; 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; the downward moving fluid and the upward moving fluid collide and mix with each other near the interface, so that the flocs continue to grow; the fluids above and below the interface are simultaneously mixed in three dimensions in the axial and radial directions to achieve spatial flocculation, and are remixed to form a new mixed fluid, so that the fluids above and below the interface continuously change positions, and the flocs are repeatedly moved and agglomerated under the joint action of the inner blades and the outer blades, thereby accelerating the sedimentation effect.

[0009] The present invention provides an integrated sewage treatment method, which generates a rotating fluid moving upward and downward with a transmission shaft as the center by setting upper blades and lower blades. The fluid is continuously mixed with the coagulant sprayed outward from the medicine outlet of the transmission shaft during the upward and downward movement, so that the coagulant is fully dissolved in the fluid, and the flocs in the fluid are continuously enlarged near the transmission shaft; and the continuously enlarged flocs are continuously mixed and collided with the coagulant sprayed from the upstream medicine outlet again during the upward and downward movement of the fluid, so that the flocs are continuously enlarged in the height direction; thereby improving the flocculation effect in the height direction. Most of the fluid and the coagulant produced by the upper blades and the lower blades are mixed and move upward and downward respectively, and a small part of the fluid flows out tangentially around the transmission shaft, generating annular fluid under the action of the impeller assembly, and the flocculation process in different directions is carried out, increasing the collision and agglomeration of the flocs in different directions. By vertically arranging 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

[0010] Figure 1 It is a structural schematic diagram of a flocculation device of an integrated sewage treatment equipment used in the method of an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the impeller assembly.

[0011] 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

[0012] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0013] The embodiment of the present invention provides an integrated sewage treatment method, which uses an 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.

[0014] The medicine adding container 7 is a thin-walled cylinder with an opening at the upper end, and is used to contain the coagulant. The medicine adding container 7 is coaxially arranged with the transmission shaft 2, and rotates synchronously with the transmission shaft. The shaft wall circumference of the transmission shaft located in the medicine adding container 7 is provided with a plurality of medicine inlet holes, and the medicine adding container is connected with the inner cavity of the transmission shaft 2 through the medicine inlet holes. The shaft wall circumference of the transmission shaft located in the impeller assembly is provided with a plurality of medicine outlet holes 21.

[0015] 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. The upper blade 3 is arranged upwardly and the lower blade 4 is arranged downwardly.

[0016] The method of the embodiment of the present invention comprises the following steps: Step 10, add the coagulant into the dosing container 7, 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.

[0017] Step 20, the driving member 1 drives the transmission shaft 2 to rotate, thereby driving the drug adding container 7, the upper blades 3, the lower blades 4 and the impeller assembly 5 to rotate.

[0018] Step 30, 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, 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 height. Most of the fluid produced 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, 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 to increase the collision and agglomeration of the flocs in different directions.

[0019] The lower blades 4 rotate to 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 continue to grow 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 agent 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 flocculation processes in different directions are carried out, increasing the collision and agglomeration of flocs in different directions.

[0020] 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.

[0021] 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.

[0022] The method of this embodiment also includes: Step 40, the auxiliary blade 71 generates radial fluid below the liquid surface to stir and mix the fluid containing flocs and coagulant, so that the flocs are continuously mixed, collided and agglomerated within the rotation radius of the auxiliary blade, 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.

[0023] like Figure 2 As 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.

[0024] Preferably, the impeller assembly 5 is an axially symmetrical structure. The axial symmetry plane of the impeller assembly 5 serves as a dividing interface, the upper blades 3 are located above the dividing interface, and the lower blades 4 are located below the dividing interface.

[0025] The method of this embodiment also includes: Step 50, the inner blade 54 rotates to generate a double trumpet-shaped inner annular fluid that rotates around the transmission shaft 2, and is symmetrical up and down with respect to 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 blade, and the inner circle of the inner annular fluid is the inner edge of the inner blade.

[0026] 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.

[0027] 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.

[0028] The method of this embodiment also includes: Step 60: the outer blade 53 rotates to generate a waist-drum-shaped outer annular fluid that rotates around the transmission shaft 2 and is symmetrical about 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.

[0029] 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, the tangential flow velocity of the outer annular fluid gradually decreases, the inner circle of the outer annular fluid gradually diffuses inward, and the distance between the inner annular fluid and the outer annular fluid gradually decreases, thus 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The method of the embodiment of the present invention also includes: Step 70, 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, so that the flocs continue to grow. On the other hand, after the fluids above and below the interface are remixed, a new mixed fluid is formed, so that the fluids above and below the interface constantly change their positions, and the movement and agglomeration process of the flocs are repeated under the joint action of the inner blades and the outer blades, thereby accelerating the precipitation effect.

[0034] 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.

[0035] The preferred embodiment method of the present invention adopts the integrated sewage treatment equipment of the above preferred embodiment, which 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 .

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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, the fluid is prevented from floating up, so that the fluid changes direction and moves around, collides with the surrounding fluid again, and the flocs are continuously agglomerated and enlarged.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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. An integrated sewage treatment method, characterized in that: The following steps are involved: Step 10, adding a coagulant to the dosing container (7), 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); Step 20, the driving member (1) drives the transmission shaft (2) to rotate, thereby driving the dosing container (7), the upper blades (3), the lower blades (4) and the impeller assembly (5) to rotate; Step 30, 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 during the upward movement of the fluid, so that the flocs are continuously enlarged in the height direction; most of the fluid generated by the upper blade (3) is mixed with the coagulant and moves upward, and a small part of the fluid flows out tangentially around the transmission shaft, and an annular fluid is generated under the action of the impeller assembly (5), and a flocculation process in different directions is performed, thereby increasing the collision and agglomeration of the flocs in different directions; The lower blades (4) rotate to generate a rotating fluid that moves downward with the transmission shaft as the center. During the downward 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, causing the flocs in the fluid to continuously grow between the inner blades and the transmission shaft; the continuously growing flocs are continuously mixed and collided with the coagulant sprayed from the lower medicine outlet during the downward movement, causing the flocs to continuously grow in height; most of the fluid generated by the lower blades (4) is mixed with the coagulant and moves downward, and a small part of the fluid flows out tangentially around the transmission shaft, generating an annular fluid under the action of the impeller assembly (5), and undergoing a flocculation process in different directions, thereby increasing the collision and agglomeration of the flocs in different directions.

2. The integrated sewage treatment method according to claim 1, characterized in that: Also includes: In step 40, the auxiliary blades (71) generate radial fluid below the liquid surface to stir and mix the fluid containing flocs and coagulant, so that the flocs are continuously mixed, collided and agglomerated within the rotation radius of the auxiliary blades, thereby 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 in all directions, collides with the surrounding fluid again, and the flocs are continuously agglomerated and enlarged.

3. The integrated sewage treatment method according to claim 2, characterized in that: Also includes: Step 50, the inner blades (54) rotate to generate a double trumpet-shaped inner annular fluid that rotates around the transmission shaft (2) and is symmetrical about the interface; Above the interface, the inner circle of the inner annular fluid and the fluid near the inner circle 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 in the entire circumferential direction gradually increases from bottom to top; the gradually agglomerated and enlarged flocs continuously collide and mix with the flocs formed by the coagulant sprayed outward from the drug outlet (21) of the transmission shaft and the surrounding water body under the action of the upper blades, once again making the flocs larger; the fluid at the top and the radial fluid formed by the auxiliary blades (71) mix and squeeze with each other, again making the flocs agglomerate and enlarge; the outer circle of the inner annular fluid and the fluid near the outer circle 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 in the entire circumference gradually increases from bottom to top; Below the interface, the inner circle of the inner annular fluid and the fluid near the inner circle 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 gradually agglomerated and enlarged flocs constantly collide and mix with the flocs formed by the coagulant sprayed outward from the drug 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 with each other, again making the flocs agglomerate and enlarge; the outer circle of the inner annular fluid and the fluid near the outer circle 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 with each other, again making the flocs agglomerate and enlarge.

4. The integrated sewage treatment method according to claim 3, characterized in that: Also includes: Step 60, the outer blades (53) rotate to generate a waist-drum-shaped outer annular fluid that rotates around the transmission shaft (2) and is symmetrical about the interface; Above the interface, 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 with 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; 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 circle of the outer annular fluid and the fluid near the outer circle 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, and the radial agglomeration effect of the flocs on the entire circumference gradually increases from top to bottom; because 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 is continuously mixed with the upper fluid during the movement, accelerating the agglomeration process of the flocs; the mixed fluid moves upward to the vicinity of the liquid surface and then moves toward the transmission axis, collides and mixes with the fluid near the liquid surface, further agglomerating the flocs; Below the interface, 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; the fluid on the lower end face and the fluid at the bottom of the pool mix and squeeze with each other, again increasing the agglomeration of the flocs; the outer circle of the outer annular fluid and the fluid near the outer circle 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, and the radial agglomeration effect of the flocs on the entire circumference gradually decreases from top to bottom; because 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 bottom to top are different, so that the fluid moving downward deflects inward, and during the movement, it is continuously mixed with the fluid below, accelerating the agglomeration process of the flocs; 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.

5. The integrated sewage treatment method according to claim 4, characterized in that: Also includes: Step 70, 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, so that the flocs continue to grow; the fluids above and below the interface are simultaneously mixed in three dimensions in the axial and radial directions to achieve spatial flocculation effects, and are remixed to form a new mixed fluid, so that the fluids above and below the interface continuously change positions, and the floc movement and agglomeration process is repeated under the joint action of the inner blades and the outer blades, thereby accelerating the sedimentation effect.

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