CN116621298A - Space intensive flocculation water treatment device - Google Patents

Abstract

The invention discloses a space-intensive flocculation water treatment device, which comprises a sedimentation separation mechanism and a spiral coil coiled outside the sedimentation separation mechanism. The sedimentation separation mechanism includes a first outer cone, and a first An inner cone, a multi-layer settling cone plate is arranged between the first inner cone and the first outer cone; one end of the spiral coil is provided with a sewage inlet, and the other end is pierced through the first inner cone In the body, between the first outer cone and the first inner cone is a cone-plate separation zone, and above the cone-plate separation zone is a clear water zone. The invention can utilize the space of the equipment to a greater extent, the sewage treatment capacity per unit volume of the equipment is higher, large and dense flocs are quickly formed, the separation efficiency of the flocs and the water body is high, and the hydraulic retention time is reduced by 50% compared with the traditional flocculation device More than %, it improves the speed and efficiency of flocculation treatment, is suitable for various sewage treatment, saves space, improves efficiency, and is suitable for sewage treatment projects with limited space.

Description

A space-intensive flocculation water treatment device

technical field

The invention relates to a space-intensive flocculation water treatment device, which belongs to the technical field of water treatment.

Background technique

Flocculation can quickly remove suspended pollutants and chroma in water. It is an important water treatment technology and is widely used in the treatment of various industrial sewage, municipal domestic sewage, and surface polluted water bodies.

The principle of the flocculation method is to add coagulants, flocculants, coagulants and other flocculation agents to the sewage. These agents make the fine pollution particles coalesce by compressing the electric double layer of the suspended pollution particles, neutralization and adsorption bridging. Together, a certain scale of flocs (commonly known as alum flowers) is formed. The density of the flocs is greater than that of water, and they slowly settle and separate from the water body, thereby purifying the water quality.

The disadvantage of the flocculation method to treat sewage is that it takes a long time for settling, because the density difference between the flocs and water is small, so that the settling speed of the flocs is very small, and only when the settling time is long enough can a clear water phase be obtained. The residence time needs to be several hours or more to achieve a good treatment effect, which makes the treatment facilities or equipment have a low treatment speed and a large volume. The size of the device is very large. Traditional flocculation settling devices include settling clarifiers, advection sedimentation tanks, baffle sedimentation tanks, etc., which occupy a relatively large area. In order to reduce the floor area of the flocculation treatment device, people have designed inclined plates (inclined tubes) in recent years. Sedimentation tanks, inclined tubes and inclined plates can improve the efficiency of sedimentation and separation to a certain extent, but the equipment still needs a large flocculation space, and the overall equipment footprint is still high; in recent years, air flotation flocculation has also appeared, and the speed is slow. However, it still requires a larger floor area, the weight of the equipment itself is relatively large, there are many auxiliary equipment, and the process control is complicated. The treatment of urban inland surface rivers with limited space or wild rivers without hardened ground around them is limited. Extremely restrictive.

Contents of the invention

In order to solve the above technical problems, the present invention provides a space-intensive flocculation water treatment device, which can greatly improve the space utilization rate of the equipment, and has a higher sewage treatment capacity per unit volume of equipment, and quickly forms a larger and denser water treatment device. The floc, the density difference between the floc and the water body is large, and the separation speed is high, so that the separation efficiency is improved, and the hydraulic retention time is reduced by more than 50% compared with the traditional flocculation device, which greatly improves the speed and efficiency of flocculation treatment, reduces the volume of the equipment, and is suitable for Used in sewage treatment plants, sewage treatment workshops or sewage treatment of surface polluted water bodies, saving space and improving efficiency, especially suitable for sewage treatment projects with limited space.

Specifically, the following technical solutions are included:

The present invention provides a space-intensive flocculation water treatment device, which includes a settling and separating mechanism and a spiral coil coiled outside it. The settling and separating mechanism includes a first outer cone, and the settling and separating mechanism is provided with a first An inner cone, a multi-layer settling cone plate is arranged between the first inner cone and the first outer cone; one end of the spiral coil is provided with a sewage inlet, and the other end is pierced through the first inner cone In the body, between the first outer cone and the first inner cone is a cone-plate separation zone, and above the cone-plate separation zone is a clear water zone.

In one embodiment of the present invention, the settling separation mechanism further includes a second outer cone, the first outer cone is connected to the second outer cone, and the first outer cone is located at the above the second outer cone.

In one embodiment of the present invention, the cross-sectional area of the bottom end of the first outer cone is larger than the cross-sectional area of the top end; the cross-sectional area of the bottom end of the second outer cone is smaller than the cross-sectional area of the top end. The bottom end of an outer cone is connected to the top of the second outer cone; the cross-sectional area of the bottom end of the first inner cone is greater than the cross-sectional area of the top end, and the first inner cone is located at the first outer cone. inside the cone.

In one embodiment of the present invention, the multi-layer settling cone plate includes several conical plates. The conical plates are stacked to form a multi-layered trumpet-shaped conical surface.

In one embodiment of the present invention, the inclination angle of the conical plates of the multi-layer settling cone plates in the first outer cone is adapted to the inclination angles of the first outer cone and the shell of the first inner cone; The second outer cone is also provided with a multi-layer settling cone plate, and the inclination angle of the conical plate of the multi-layer settling cone plate in the second outer cone is adapted to the inclination angle of the second outer cone shell .

In one embodiment of the present invention, a second inner cone is also provided in the settling separation mechanism, the second inner cone is located below the first inner cone, and the second inner cone is a cone , its tip is towards the center of the outlet at the bottom end of the first inner cone, the bottom surface of the second inner cone is located at the maximum cross-section of the first outer cone and the second outer cone, and the second inner cone The body is used to distribute the floc flowing out from the bottom end of the first inner cone and the lateral flow of the water phase at the maximum cross-section of the first outer cone and the second outer cone.

In one embodiment of the present invention, the spiral coil is provided with a first flocculant inlet and a second flocculant inlet; the spiral coil is also connected with an exhaust pipe, and the exhaust pipe is used to discharge the spiral coil The accumulated gas during the flow of sewage in the pipe, the exhaust pipe is provided with a valve.

In one embodiment of the present invention, the top end of the first inner cone extends upwards with a cylinder, the top end of the first outer cone is a saw-toothed overflow weir, and the outside of the overflow weir is connected with an overflow A clear water area is formed between the overflow weir and the cylinder at the top of the first inner cone, the clear water area is located above the multi-layer settling cone plate, and the overflow tank is provided with an outlet In the water pipe, the clear water phase reaches the clear water area above the multi-layer settlement cone plate, flows into the overflow tank through the sawtooth overflow weir, and is discharged from the outlet pipe.

In one embodiment of the present invention, it also includes a frame, the settling and separating mechanism is fixed on the frame through a support frame; the bottom end of the second outer cone is provided with a floc outlet, and the floc outlet is circumscribed There are floc receiving agencies.

In one embodiment of the present invention, the first outer cone, the second outer cone and the first inner cone are all truncated conical structures.

Beneficial effect

(1) The present invention sets the sedimentation and separation mechanism of the usual cylindrical shell as a shell structure in which the upper and lower double cones are docked with each other, and the upper and lower double cone shell structures remove the wasted space in the general inclined plate or inclined tube settling tank from the settling area Isolated and used for flocculation. Specifically, the flocculation process takes place in the coiled spiral coil, and the mixing and flocculation of flocculants and pollutants occurs under the action of centrifugal force. Under the unit floor area and unit equipment volume, the upper and lower double cone shell structures are compared with circular In the cylindrical shell structure, more helical coils can be coiled on the outside of the conical shell. Therefore, the upper and lower double-cone shell structures can convert the wasted space in the settling area in the cylindrical shell structure into coiled spiral coils for flocculation, avoiding the need to set up additional space for flocculation parts, and greatly saving equipment Space, improve the space utilization of equipment.

(2) The present invention is provided with multi-layer settling cone plates consistent with the direction of water flow in the cone-plate separation zone between the first outer cone and the first inner cone and in the floc settlement zone in the second outer cone. Several conical plates of the settling cone form a multi-layer trumpet-shaped conical surface, which provides a larger settling area for both the upper water flow and the sinking floc. According to the shallow pool theory of sedimentation separation, every time one conical surface is added, the sedimentation area will be doubled correspondingly, and if n conical surfaces are added, the sedimentation area will be increased by n times, and accordingly, the sedimentation and separation efficiency will also be increased by about n times. Therefore, the multi-layer sedimentation cone greatly increases the sedimentation area, greatly improves the sedimentation and separation efficiency of flocs and water, and further saves equipment space to a large extent.

(3) The present invention arranges the first inner cone of the cone structure in the upper and lower double cone shell structures, and the water body that is flocculated flows downward after entering the first inner cone of the cone structure, and the circulation of the first inner cone The channel is a channel with a gradually enlarged flow cross-sectional area. According to the Bernoulli principle of fluid flow, when the flow cross-sectional area becomes larger, the flow velocity will decrease, so the gradually enlarged flow area of the first inner cone provides a The flow velocity gradually decreases, and the velocity difference between flocs and water flow gradually increases to better separate the hydraulic conditions, thereby improving the sedimentation and separation efficiency of flocs and water; on the other hand, the inclination angle of the shell of the first inner cone and the second The inclination angle of the shell of an outer cone and the inclination angle of the conical plate of the multi-layer settling cone are adapted, and the first water flows upward in the space between the first inner cone and the first outer cone. The channel area of the rising water flow formed between the inner cone and the first outer cone has a constant area, which not only saves space, but also facilitates the stability of water flow rate and the average distribution of water flow, reduces turbulent flow and eddy flow, and improves separation efficiency.

(4) The present invention arranges the flocculation part in the inclined space outside the upper and lower double-cone shell structure, and flocculates in the coiled spiral coil. Compared with the traditional stirring flocculation in the large-volume flocculation space, the large-volume space The movement of pollutant particles and flocculant is relatively messy under stirring conditions, the hydraulic retention time is not easy to control, and the uniformity of the formed flocs is relatively poor; while in the flocculation process in the coil tube of the present invention, the pollutant particles and flocculant Make a regular circular motion, collide and coalesce under the action of centrifugal force, the speed of floc formation is fast and uniform, after the flocs are formed, they gradually move to the outer periphery under the action of centrifugal force, and coalesce into larger ones during the moving process. Therefore, the flocculation process of the present invention is easier to form large and dense flocs. Compared with the flocs of stirring flocculation, the settlement speed of the large and dense flocs of the present invention is fast, which is beneficial to the subsequent sedimentation and separation efficiency. The improvement of the present invention further improves the sedimentation separation efficiency of the present invention, and further saves equipment space, thereby making the device of the present invention a highly space-intensive water treatment equipment, especially suitable for the treatment of many industrial sewage and surface sewage with limited space at present. .

(5) The space-intensive flocculation water treatment device provided by the present invention has a highly intensive volume, can be made into a mobile type, is convenient to use, is convenient for the treatment of various water pollution, and has a wide range of applications.

Description of drawings

Fig. 1 is a schematic structural diagram of a space-intensive flocculation water treatment device of the present invention.

In the figure: 1. Sedimentation separation mechanism; 2. Spiral coil; 3. The first outer cone; 4. The second outer cone; 5. Multi-layer sedimentation cone plate; 6. The first inner cone; 7. The second 2. Inner cone; 8. Overflow tank; 9. Outlet pipe; 10. The first flocculant inlet; 11. Sewage inlet; 12. Flock outlet; 13. Casters; 14. Support frame; , clear water area; 17, overflow weir; 18, second flocculant inlet; 19, cylinder body; 20, exhaust pipe; 21, valve.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

As shown in Figure 1, the present invention provides a space-intensive flocculation water treatment device, which includes a sedimentation separation mechanism 1 and a spiral coil 2 coiled outside it, and the sedimentation separation mechanism 1 includes first outer cones connected to each other body 3 and a second outer cone 4, the first outer cone 3 is located above the second outer cone 4, the first inner cone 6 is arranged in the settling separation mechanism 1 and is located at the second A second inner cone 7 below the inner cone 6, a multi-layer settling cone plate 5 is arranged between the first inner cone 6 and the first outer cone 3; one end of the spiral coil 2 is provided with Sewage inlet 11, the other end of which is pierced in the first inner cone 6, between the first outer cone 3 and the first inner cone 6 is a conical plate separation area, above the conical plate separation area It is the clear water area 16, and the inside of the second outer cone 4 is the floc settlement area.

Further, the cross-sectional area of the bottom of the first outer cone 3 is greater than the cross-sectional area of its top; the cross-sectional area of the bottom of the second outer cone 4 is less than the cross-sectional area of its top, and the first outer cone The bottom end of 3 links to each other with the top of described second outer cone 4; The cross-sectional area of the bottom end of described first inner cone 6 is greater than the cross-sectional area of its top, and the first inner cone 6 is positioned at the first outer cone. Inside cone 3.

In this embodiment, the sedimentation and separation mechanism of the usual cylindrical shell is set as a shell structure in which the upper and lower double cones are docked with each other. The upper and lower double cone shell structures isolate the wasted space in the general inclined plate or inclined tube settling tank from the settling area. , for flocculation. Specifically, the flocculation process occurs in the coiled spiral coil 2, and the pollutants and flocculants flow in the spiral pipe, and mixing, collision and flocculation occur under the action of centrifugal force. For the cylindrical shell structure, more helical coils 2 can be coiled on the outside of the conical shell. Therefore, the upper and lower double-cone shell structures can convert the wasted space in the settling area in the cylindrical shell structure into coiled spiral coils 2 for flocculation, without additional flocculation space, which greatly saves equipment space and improves equipment space utilization. In addition, the flocculation part is set in the inclined space outside the upper and lower double-cone shell structure, and flocculates in the coiled spiral coil 2. On the one hand, the flocculation process occurs in the coiled spiral coil 2, and the pollutant particles and flocculants are in the circumference Collisions occur during the movement, and the formation of flocs is fast, and the flocs gradually move to the outer periphery under the action of centrifugal force, and condense into larger alum flowers during the moving process, which is easy to form large and dense flocs. The floc settling speed is fast, which is conducive to the improvement of the subsequent settling and separation efficiency, and saves the space of the general flocculation unit and the stirring device; on the other hand, the flocculation process is arranged in the space of the upper and lower double cone shell structures, without additional The space for the flocculation link is set, which reduces the floor area of the equipment, saves the flocculation space, prolongs the flocculation time, improves the flocculation effect, and greatly improves the space utilization rate of the device under the premise of effectively completing the flocculation and settlement function, becoming a It is a highly space-intensive water treatment equipment, especially suitable for the treatment of many industrial sewage and surface sewage with limited space.

Optionally, the multi-layer settling cone plate 5 includes several stacked conical plates, the conical plate is a truncated conical structure and the upper and lower ends pass through, several of the conical plates are coaxial, and several of the conical plates Stacked to form a multi-layered trumpet-shaped conical face.

Optionally, the inclination angle of the conical plate of the multi-layer settling cone plate 5 in the first outer cone 3 is adapted to the inclination angle of the shell of the first outer cone 3 and the first inner cone 6, That is, the inclination angles of the conical plates of the multi-layer settling cone plates 5 in the first outer cone 3 are the same or similar to the inclination angles of the shells of the first outer cone 3 and the first inner cone 6 .

Optionally, a multi-layer settling cone plate 5 is also arranged in the second outer cone 4, and the inclination angle of the conical plate of the multi-layer settling cone plate 5 in the second outer cone 4 is the same as that of the second The angle of inclination of the shell of the outer cone 4 is adapted, that is, the angle of inclination of the conical plate of the multi-layer settling cone plate 5 in the second outer cone 4 is the same or similar to the angle of inclination of the shell of the second outer cone 4 . The multi-layer settling cone plate 5 arranged inside the second outer cone 4 forms a multi-layer trumpet-shaped conical surface to improve the settling efficiency of flocs.

In this embodiment, the conical-plate separation zone between the first outer cone 3 and the first inner cone 6 and the floc settlement zone in the second outer cone 4 are provided with multi-layer settling cones 5 consistent with the direction of water flow. , several conical plates of the multi-layer settling cone plate 5 form a multi-layer trumpet-shaped conical surface, which provides a larger settling area for the upper water flow and the sinking floc. According to the shallow pool theory of sedimentation separation, every time one conical surface is added, the sedimentation area will be doubled correspondingly, and if n conical surfaces are added, the sedimentation area will be increased by n times, and accordingly, the sedimentation and separation efficiency will also be increased by about n times. Therefore, the multi-layer settling cone plate 5 greatly increases the settling area, greatly improves the settling and separating efficiency of flocs and water, and further saves equipment space to a large extent.

Optionally, a cylinder 19 extends upwards from the top of the first inner cone 6. After the flocculated sewage enters, a small amount of light oily substances float up to the cylinder 19 at the top of the first inner cone 6, which can be Scrape or pump out regularly.

Optionally, the second inner cone 7 is a cone, its tip is towards the center of the outlet at the bottom end of the first inner cone 6, and the bottom surface of the second inner cone 7 is located at the first outer cone 3 and the maximum cross-section of the second outer cone 4, the second inner cone 7 is used to distribute a small amount of small flocs flowing out from the bottom of the first inner cone 6 and the lateral flow of the water phase in the first outer The largest cross section of the cone 3 and the second outer cone 4. After the flocs flow out from the bottom of the first inner cone 6, they pass through the conical surface of the second inner cone 7, causing the water phase and a small amount of small flocs to flow laterally and distribute between the first outer cone 3 and the second outer cone. The largest cross-section of the cone 4 flows softly afterwards, without violent impact and disturbance, which reduces the separation effect.

In this embodiment, the first inner cone 6 of the cone structure is set in the upper and lower double cone shell structure, and the first inner cone 6 is used as the water inlet pipe, and the flocculated water enters the first inner cone 6 of the cone structure, and a On the one hand, the inclined part in the first inner cone 6 is used to form a flow channel with a gradually enlarged flow cross-sectional area, so that the water flow rate gradually decreases, and a flow rate is gradually reduced, and the speed of flocs and water flow is provided for the flow of influent water. The difference gradually becomes larger so as to better separate the hydraulic conditions, thereby improving the sedimentation and separation efficiency of flocs and water; Adaptation, during the process of water flowing upwards, the channel area of the rising water formed between the first inner cone 6 and the first outer cone 3 is constant, which not only saves space, but also facilitates the stability of the water flow rate and the average of the water flow Distribution, reduce turbulence and eddy current, improve separation efficiency.

Optionally, the spiral coil 2 is provided with a first flocculant inlet 10 and a second flocculant inlet 18, and the flocculant is added into the spiral coil 2 through the first flocculant inlet 10 and the second flocculant inlet 18 and coagulant.

Optionally, the spiral coil 2 is also connected with an exhaust pipe 20, the exhaust pipe 20 is used to discharge the accumulated gas during the sewage flow in the spiral coil 2, and the exhaust pipe 20 is provided with a valve twenty one. Preferably, the exhaust pipe 20 is connected above the highest point of the spiral coil pipe 2 .

Optionally, the top end of the first outer cone 3 is a saw-toothed overflow weir 17, and an overflow groove 8 is connected to the outside of the overflow weir 17, and the overflow weir 17 and the first inner cone A clear water zone 16 is formed between the cylinders 19 at the top of the body 6, the clear water zone 16 is located above the multi-layer settling cone plate 5, the overflow tank 8 is provided with an outlet pipe 9, and the clear water phase reaches the multi-layer The clear water area 16 above the settling cone plate 5 flows into the overflow tank 8 through the sawtooth overflow weir 17 and is discharged by the outlet pipe 9 .

Optionally, a frame 15 is also included, the settling separation mechanism 1 is fixed on the frame 15 through a support frame 14, and casters 13 are provided at the bottom end of the bottom frame 15; the bottom of the second outer cone 4 A floc outlet 12 is provided at the end, and a floc receiving mechanism is externally connected to the floc outlet 12, and the floc receiving mechanism is used to receive the floc coming out of the floc outlet 12. The space-intensive flocculation water treatment device provided by the present invention has a highly compact volume, can be made into a mobile type, is convenient to use, facilitates the treatment of various water body pollutions, and has a wide application range.

Optionally, the first outer cone 3, the second outer cone 4 and the first inner cone 6 are all truncated conical structures, and the cone angle of the truncated conical structure can be modified according to actual needs, which is not covered by the present invention. Be specific.

The present invention enters the sewage to be treated from the sewage inlet 11 of the spiral coil 2, and the upper end of the spiral coil 2 coiled outside the second outer cone 4 passes through a straight pipe (not shown in the figure) and the outside of the first outer cone 3 The upper end of the coiled spiral coil 2 is connected, and the sewage passes through the sewage inlet 11, the upper end of the spiral coil 2 coiled outside the second outer cone 4, and the upper end of the spiral coil 2 coiled outside the first outer cone 3, from The lower end of the spiral coil pipe 2 coiled outside the first outer cone 3 flows into the first inner cone 6 . Add flocculant and coagulant at the first flocculant inlet 10 and the second flocculant inlet 18, and perform spiral mixing in the spiral coil 2, preferably, it can be loaded into a static mixer, and the sewage is in the spiral coil 2 Flocculate, and then enter the first inner cone 6 of the settling separation mechanism 1 . After the flocculated sewage enters, a small amount of light oily matter floats up to the cylinder 19 on the top of the first inner cone 6, and can be scraped off or drawn out regularly, and the rest of the flocs flow down with the water flow. As the cross-sectional area of the first inner cone 6 becomes larger, the water flow rate slows down, and the difference between the settling velocity of the flocs and the flow rate of the water increases, so that the flocs are better separated from the settlement of the water body. After the outlet at the bottom of the body 6 flows out of the first inner cone 6, it passes through the conical surface of the second inner cone 7, and the large flocs slide down and settle down along the conical surface of the second inner cone, and the water phase and a small amount of medium and small The flocs flow laterally and are distributed at the largest cross section of the first outer cone 3 and the second outer cone 4. The medium flocs settle down, while the water phase and a small amount of small flocs flow upwards and pass through multi-layer sedimentation. The multi-layer trumpet-shaped conical surface formed by several conical plates of the cone plate 5, wherein the multi-layered conical surface plays the role of multi-layered cone-plate settlement, increasing the settlement and separation efficiency of fine flocs. The clear water phase reaches the clear water area 16 above the multi-layer settling cone plate 5, flows into the overflow tank 8 through the saw-toothed overflow weir 17, and is discharged from the outlet pipe 9; the floc collected on the multi-layer conical surface slides down to the first outer cone 3 and the largest cross-section of the second outer cone 4, sink into the second outer cone 4, and gradually settle to the floc outlet at the bottom of the second outer cone 4 together with the large floc particles from the first inner cone 6 12. Discharge regularly. According to actual technological requirements, multiple layers of settling cone plates 5 can also be arranged inside the second outer cone 4 to form a multi-layered trumpet-shaped conical surface to further improve the settling efficiency.

The present invention can greatly improve the space utilization rate of the equipment, the sewage treatment capacity per unit volume of the equipment is higher, and it can quickly form larger and dense flocs, the density difference between the flocs and the water body is large, and the separation speed is high, so that The separation efficiency is improved, the hydraulic retention time is reduced by more than 50% compared with the traditional flocculation device, the flocculation treatment speed and efficiency are greatly improved, and the equipment volume is reduced. Space, improve efficiency, especially suitable for sewage treatment projects with limited space.

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (10)

1. A space-intensive flocculation water treatment device, characterized in that it comprises a settling and separating mechanism and a spiral coil coiled on its outside, the settling and separating mechanism includes a first outer cone, and the settling and separating mechanism is provided with The first inner cone, a multi-layer settling cone plate is arranged between the first inner cone and the first outer cone; one end of the spiral coil is provided with a sewage inlet, and the other end is pierced through the first In the inner cone, between the first outer cone and the first inner cone is a cone-plate separation zone, and above the cone-plate separation zone is a clear water zone. 2. The space-intensive flocculation water treatment device according to claim 1, wherein the settling separation mechanism further comprises a second outer cone, and the first outer cone and the second outer cone are mutually connected, the first outer cone is located above the second outer cone. 3. The space-intensive flocculation water treatment device according to claim 2, wherein the cross-sectional area of the bottom of the first outer cone is greater than the cross-sectional area of its top; the bottom of the second outer cone is The cross-sectional area is smaller than the cross-sectional area of its top, and the bottom of the first outer cone is connected to the top of the second outer cone; the cross-sectional area of the bottom of the first inner cone is greater than the cross-sectional area of its top , the first inner cone is located in the first outer cone. 4. The space-intensive flocculation water treatment device according to claim 3, characterized in that, the multi-layer settling cone plate comprises several conical plates, the conical plate is a frustum of conical structure and the upper and lower ends are connected, and several conical plates The conical plates are coaxial, and several of the conical plates are laminated to form a multi-layer horn-shaped conical surface. 5. The space-intensive flocculation water treatment device according to claim 4, characterized in that, the inclination angle of the cone plate of the multi-layer settling cone plate in the first outer cone is the same as that of the first outer cone and the second cone. The angle of inclination of an inner cone housing is compatible; the second outer cone is also provided with multilayer settling cone plates, and the inclination angle of the conical plates of the multilayer settling cone plates in the second outer cone is the same as that of the described second outer cone. The inclination angle of the second outer cone shell is suitable. 6. The space-intensive flocculation water treatment device according to claim 2, characterized in that, a second inner cone is also arranged in the settling separation mechanism, and the second inner cone is located at the first inner cone Below the body, the second inner cone is a cone with its tip facing the center of the outlet at the bottom end of the first inner cone, and the bottom surface of the second inner cone is located between the first outer cone and the second outer cone. At the largest cross-section of the first inner cone, the second inner cone is used to distribute the flocs flowing out from the bottom end of the first inner cone and the lateral flow of the water phase on the largest cross-section of the first outer cone and the second outer cone place. 7. The space-intensive flocculation water treatment device according to claim 1, characterized in that, the spiral coil is provided with a first flocculant inlet and a second flocculant inlet; the spiral coil is also connected with a drain Air pipe, the exhaust pipe is used to discharge the accumulated gas during the flow of sewage in the spiral coil tube, and the exhaust pipe is provided with a valve. 8. The space-intensive flocculation water treatment device according to claim 1, characterized in that, the top end of the first inner cone extends upwards with a cylinder, and the top end of the first outer cone is serrated An overflow weir, an overflow tank is connected to the outside of the overflow weir, a clear water area is formed between the overflow weir and the cylinder at the top of the first inner cone, and the clear water area is located at the bottom of the multi-layer settlement cone Above the plate, the overflow tank is provided with an outlet pipe, and the clear water phase reaches the clear water area above the multi-layer settling cone plate, flows into the overflow tank through the sawtooth overflow weir, and is discharged from the outlet pipe. 9. The space-intensive flocculation water treatment device according to claim 1, further comprising a frame, the settling and separating mechanism is fixed on the frame by a support frame; the bottom end of the second outer cone A floc mud outlet is provided, and a floc mud receiving mechanism is externally connected to the floc mud outlet. 10. The space-intensive flocculation water treatment device according to any one of claims 1-9, characterized in that, the first outer cone, the second outer cone and the first inner cone are all truncated conical structures .