CN114031203B

CN114031203B - Self-circulation high-density suspended sludge filtering and settling water purifier

Info

Publication number: CN114031203B
Application number: CN202110711292.XA
Authority: CN
Inventors: 张崭华; 张恒
Original assignee: Beijing Proviridia Technology Co Ltd
Current assignee: Beijing Proviridia Technology Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2023-09-05
Anticipated expiration: 2041-06-25
Also published as: CN114031203A

Abstract

The invention relates to the technical field of water treatment equipment, and provides a self-circulation high-density suspended sludge filtering and settling water purifier, which comprises the following components: the coagulation area and the water collecting pipe are used for collecting water bodies in the coagulation water receiving chamber; the flocculation area is arranged at the downstream of the coagulation area, and the other end of the water collecting pipe enters the flocculation area; the water body accelerating device is respectively arranged in the coagulation area and the flocculation area; the clear water filter is arranged at the downstream of the precipitation zone and is communicated with the water outlet of the reactor. The self-circulation high-density suspended sludge filtering and settling water purifier provided by the invention is stirred by the self-kinetic energy of the water body, and a stirrer is not required to be arranged in a coagulation area and a flocculation area, so that the power load of the whole self-circulation high-density suspended sludge filtering and settling water purifier is reduced, the running cost is reduced, and meanwhile, the quality of water outlet can be further improved due to the arrangement of the clear water filter.

Description

Self-circulation high-density suspended sludge filtering and settling water purifier

Technical Field

The invention relates to the technical field of water treatment equipment, in particular to a self-circulation high-density suspended sludge filtering and settling water purifier.

Background

The coagulating sedimentation treatment technology is an important technology in the current water treatment technology, can reduce the sensory index of the water quality such as turbidity, chromaticity and the like of raw water, can remove various toxic and harmful pollutants, is an important guarantee for the reliable operation of a subsequent advanced treatment system, and has wide application in aspects such as drinking water treatment, sewage and wastewater treatment, high COD and high salt water treatment and the like. In the traditional coagulating sedimentation technology, the medicament is fully mixed with water by multistage stirring in the front section, and then sedimentation in the rear section is carried out.

The self-circulation high-density suspended sludge filtering and settling water purifier mainly comprises a reactor main body, wherein the reactor main body is divided into a coagulation area, a flocculation area and a precipitation separation area, and water is directly discharged after coagulation, flocculation and precipitation treatment. However, the reactor main body does not have a clean water filtering function, and further improvement of water quality cannot be achieved.

Disclosure of Invention

Therefore, the invention aims to overcome the defect that the self-circulation high-density suspended sludge filtering and settling water purifier in the related art does not have a clean water filtering function and cannot further improve the water quality, thereby providing the self-circulation high-density suspended sludge filtering and settling water purifier.

The invention provides a self-circulation high-density suspended sludge filtering and settling water purifier, which comprises the following components: the coagulation zone is provided with a reactor water inlet; the coagulation water receiving chamber is arranged in the coagulation area, and a water inlet of the coagulation water receiving chamber is communicated with the coagulation area; one end of the water collecting pipe is communicated with the coagulation water receiving chamber and is suitable for collecting water in the coagulation water receiving chamber; the flocculation area is arranged at the downstream of the coagulation area, and the other end of the water collecting pipe enters the flocculation area; the water accelerating device is respectively arranged in the coagulation area and the flocculation area and comprises: a nozzle adapted to be connected to a water inlet of the reactor or the other end of the water collecting pipe, at least a portion of an inner diameter of the nozzle being reduced in a flow direction of the water body; the throat comprises a throat water inlet and a throat water outlet, the throat water inlet mask is arranged above the spray pipe, and an acceleration water channel is formed between the spray pipe and the throat; the sedimentation zone is arranged at the downstream of the flocculation zone, and a reactor water outlet is arranged on the sedimentation zone; the clear water filter is arranged at the downstream of the precipitation zone and is communicated with the water outlet of the reactor.

Further, the interior of the clear water filter is divided into a clear water chamber, a filter chamber and a suspension chamber from top to bottom; the filter chamber is communicated with the water outlet of the reactor, the bottom of the filter chamber is communicated with the top of the suspending chamber, and a filter material is arranged in the area between the filter chamber and the suspending chamber; the suspension chamber is communicated with the clear water chamber through a clear water channel which is longitudinally arranged.

Further, a plurality of filter caps are arranged between the filter chamber and the suspension chamber, and the filter caps are uniformly arranged in an array.

Further, the filtering chamber comprises two independent chambers, each independent chamber is communicated with the water outlet of the reactor through a first pipeline, the bottom of each independent chamber is communicated with the top of the suspending chamber, and each independent chamber is communicated with the outside through a second pipeline; and control valves are arranged on the first pipeline and the second pipeline.

Further, at least a portion of the lance is tapered along the flow direction of the body of water.

Further, at least a part of the area of the throat pipe corresponding to the spray pipe is arranged in a conical shape.

Further, the inner wall of the coagulation area is provided with a coagulation water receiving plate, the coagulation water receiving plate and the inner wall of the coagulation area form a coagulation water receiving chamber, a water inlet of the coagulation water receiving chamber is positioned at the bottom of the coagulation water receiving chamber, and the coagulation water receiving chamber is suitable for enabling water in the coagulation area to enter the coagulation water receiving chamber.

Further, a first flocculation passing area is arranged between the flocculation area and the sedimentation area, water body enters the sedimentation area through the first flocculation passing area, at least one first flocculation collecting bucket is arranged in the sedimentation area, and part of the water body enters the first flocculation collecting bucket; and one end of the at least one floc circulating device acts in the first floc collecting hopper, and the other end of the at least one floc circulating device is connected with the spray pipe of the at least one water body accelerating device.

Further, the settling zone also includes a floc fluidized bed chamber located upstream of the first floc collection hopper.

Further, the settling zone also includes a hydraulic passage downstream of the first floc collection hopper.

Further, the sedimentation zone further comprises a floc sedimentation chamber which is arranged at the downstream of the hydraulic channel, and a second floc passing zone is arranged between the floc sedimentation chamber and the hydraulic channel and is suitable for enabling water in the hydraulic channel to enter the floc sedimentation chamber.

Further, a separation tube group and a plurality of second floc collecting hoppers are arranged in the floc settling chamber; the separation tube group is arranged above the floc settling chamber and comprises a plurality of flow guide tubes; the plurality of second flocculation collection hoppers are sequentially arranged below the flocculation sedimentation chamber along the length direction of the flocculation sedimentation chamber, and the opening of each second flocculation collection hopper is arranged towards the separation tube group.

Further, the self-circulation high-density suspended sludge filtering and settling water purifier further comprises a plurality of second guide plates arranged along the height direction, wherein the second guide plates are arranged at the outer sides of the second flocculation collection hoppers, one ends of the second guide plates are connected with the outer side walls of the second flocculation collection hoppers, and the other ends of the second guide plates extend towards the bottom wall of the flocculation settling chamber; and a space is reserved between the second guide plate and the bottom wall of the floc settling chamber so as to form a third floc passing area.

Further, the second guide plate comprises two symmetrically arranged at two sides of the second floc collecting hopper.

Further, the second floc passing area is positioned below the floc settling chamber; the second guide plate, the outer side wall of the second floc collecting hopper and the area between the bottoms of the floc settling chambers form a water distribution area, and the second floc passing area is communicated with the water distribution area.

Further, an anti-turbulence plate is further arranged in the floc settling chamber, the anti-turbulence plate is vertically arranged, and the length direction of the anti-turbulence plate is consistent with the length direction of the floc settling chamber.

Further, a clear water collecting device is arranged in the floc settling chamber, and the clear water collecting device is positioned above the separation tube set and connected with the water outlet of the reactor.

The technical scheme of the invention has the following advantages:

the invention provides a self-circulation high-density suspended sludge filtering and settling water purifier, which is characterized in that a coagulation area and a flocculation area are respectively provided with a water body accelerating device, wherein the water body accelerating device is provided with a spray pipe and a throat, and a water inlet mask of the throat is arranged above the spray pipe to form an accelerating water channel. After entering the spray pipe from the water inlet of the reactor, the inner diameter of the spray pipe is reduced at least partially, so that the water body can be accelerated after flowing out of the spray pipe and then passes through an acceleration water channel, and the water body is sprayed out from the top opening of the throat pipe and is dispersed to the periphery. Under the action of gravity, the water body falls down, under the action of low pressure, the water body enters an acceleration water channel through the interval between the throat pipe and the spray pipe, and the water body and the medicines in the coagulation area are stirred in a hydraulic circulation mode. One end of the water collecting pipe is communicated with the coagulation water receiving chamber in the coagulation zone, the other end of the water collecting pipe is communicated with the spray pipe in the flocculation zone, the spray pipe and the venturi pipe arranged in the flocculation zone stir water and medicines in the flocculation zone in the same hydraulic circulation mode, and the stirred water can flow into a downstream sedimentation zone for subsequent purification. In the whole process, the stirring is carried out by depending on the self kinetic energy of the water body, and the stirrer is not required to be arranged in the coagulation area and the flocculation area, so that the electric load of the whole self-circulation high-density suspended sludge filtering and settling water purifier is reduced, and the running cost is reduced. Meanwhile, the clear water filter is arranged, so that the water outlet quality can be further improved.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the invention is characterized in that a first floc collecting hopper is arranged in a settling zone, and when water body carries flocs to flow through, the high-density flocs are preferentially settled into the first floc collecting hopper, namely, high-quality high-density flocs are recycled.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the invention has the advantages that the floc fluidized bed chamber is formed in the settling zone, and the small colloidal particles passing through the floc fluidized bed chamber can be intercepted, gathered and filtered, so that most suspended colloids in water can be removed.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the invention is provided with the floc circulation device which is connected with the bottom of the first floc collecting hopper, and the high-density flocs in the first floc collecting hopper are conveyed to the coagulation area, so that the residual medicines in the flocs react again, the use amount of the medicines is greatly reduced, the effective rate of the medicines is improved, the chemical medicine residues in the discharged water body are greatly reduced, and the environmental pollution is reduced.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the invention has the advantages that the anti-turbulence plate is arranged in the floc settling chamber, so that turbulence caused by water flow impact in the horizontal direction can be prevented, and the settling effect is prevented from being influenced.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the invention has the advantages that the second guide plates are symmetrically distributed on the two sides of the second floc collecting hopper, the bottom space of the floc settling chamber is fully facilitated, the third floc passing area in the settling water distribution area is a longitudinal gap, the interval is smaller, water distribution and water inflow are realized for resistance, and the uniformity of the water quality of the discharged water is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a self-circulation high-density suspended sludge filter-sedimentation water purifier provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a part of the structure of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 2;

FIG. 6 is a schematic view of the structure of a U-shaped pipe in a self-circulating high-density suspended sludge filter and sink purifier provided in one embodiment of the present invention;

FIG. 7 is a schematic diagram of the structure of a clean water filter in a self-circulating high-density suspended sludge filter-sedimentation water purifier according to an embodiment of the present invention;

FIG. 8 is a right side view of FIG. 1;

fig. 9 is a top view of the filter chamber of fig. 7;

FIG. 10 is a schematic view of a self-circulating high-density suspended sludge filter-sedimentation water purifier according to still another embodiment of the present invention;

FIG. 11 is a schematic illustration of a first floc passing area in a self-circulating high density suspended sludge filter sedimentation water purifier provided in one embodiment of the present invention;

FIG. 12 is a schematic illustration of a first floc passing area in a self-circulating high density suspended sludge filter sedimentation water purifier provided in yet another embodiment of the present invention;

FIG. 13 is a schematic view of a first floc passing area in a self-circulating high density suspended sludge filter sedimentation water purifier provided in yet another embodiment of the present invention;

FIG. 14 is a schematic view of a first floc passing area in a self-circulating high density suspended sludge filter settling water purifier provided in yet another embodiment of the present invention.

Reference numerals illustrate:

1-a coagulation zone; 2-flocculation zone; a 3-precipitation zone;

4-a floc fluidized bed chamber; 5-hydraulic channels; 6-a floc settling chamber;

7-spraying pipes; 8-a throat; 9-a dosing tube;

10-a water collecting pipe; 11-a first floc passing region; 12-a second floc passing region;

13-a third floc passing region; 14-separating the tube group; 15-U-shaped tube;

16-coagulating water receiving chamber; 17-coagulating water collecting plate; 18-a water distribution plate;

19-hydraulic guide sheets; 20-a speed reducing plate; 21-a water distribution area of the water body;

22-turbulence resistant plate; 23-a first deflector; 24-a second deflector;

25-a third deflector; 26-separating plate; 27-a sludge discharge device;

28-exhaust valve; 29-a first floc collection hopper; 30-a second floc collection hopper;

31-a clean water filter; 32-a clean water chamber; 33-filtering chamber;

34-a suspension chamber; 35-clear water channel; 36-filtering material;

37-filter cap; 38-a first line; 39-a second line;

40-a control valve; 41-water delivery pipe.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Fig. 1 is a schematic structural view of a self-circulation high-density suspended sludge filter-sedimentation water purifier provided in an embodiment of the present invention; FIG. 2 is a schematic view of a part of the structure of FIG. 1; as shown in fig. 1 and 2, this embodiment provides a self-circulation high-density suspended sludge filtration and sedimentation water purifier, which is cross-sectioned along the axial direction of the self-circulation high-density suspended sludge filtration and sedimentation water purifier, that is, from left to right in fig. 1, the self-circulation high-density suspended sludge filtration and sedimentation water purifier body is a tank body with a circular cross-section, one side of the tank body is provided with a reactor water inlet, the other side is provided with a reactor water outlet, the water body to be purified enters the tank body through the reactor water inlet, and the purified water body flows out from the water outlet of the reactor. Wherein, inside the tank body, along the flowing direction of the water body, a coagulation area 1, a flocculation area 2, a sedimentation area 3 and a clear water filter 31 are sequentially arranged.

For the coagulation zone 1, a spray pipe 7 is arranged at the bottom of the coagulation zone 1, the spray pipe 7 converts the flow direction of fluid entering in the horizontal direction in a water inlet of a reactor into the vertical direction, as shown in fig. 2, the spray pipe 7 sprays water upwards vertically, and the water inlet of the reactor is arranged near the bottom of a tank body and is communicated with the bottom of the spray pipe 7.

In this embodiment, in order to accelerate the water body, a water body accelerating device is provided, and the structure of the water body accelerating device itself is not limited as long as the accelerating action can be achieved.

As a preferred embodiment, as shown in fig. 1, a throat pipe 8 is sleeved at the top water outlet of the spray pipe 7, the throat pipe 8 is vertically arranged and a certain interval is reserved between the top water outlet and the top of the tank body, and the pipe diameter of the throat pipe 8 is larger than that of the spray pipe 7. The spray pipe 7 is also communicated with a dosing pipe 9, and the medicines are mixed with the water body after entering the spray pipe 7 and then are sprayed upwards.

The pipe diameter of the spray pipe 7 gradually decreases along the direction close to the throat pipe 8, so that the spray pipe can accelerate the sprayed water body, and the mixing effect is improved. The water body is sprayed out of the spray pipe 7, enters the throat pipe 8 and is sprayed out of the top of the throat pipe 8. The pipe diameter of the throat pipe 8 is gradually increased along the direction close to the top of the tank body, so that the water body is diffused to the periphery to be discharged.

In this embodiment, the top of the coagulation zone 1 may be provided in an open manner. Preferably, the top of the coagulation zone 1 can be sealed, at this time, a closed steel plate is arranged at the top of the coagulation zone 1, and water body is ejected out through the throat pipe 8 and then collides with the top of the tank body, so that the mixing and stirring effects are improved. Under the action of gravity, the water body falls back downwards, and under the action of low pressure formed by spraying water from the spray pipe 7, the water body is sucked into the throat pipe 8 from the gap between the throat pipe 8 and the spray pipe 7, and the circulating stirring is performed again. For the whole coagulation zone 1, the stirring and mixing of the water body and the medicines completely depend on the self kinetic energy of the water body, and an additional stirrer is not required to be arranged for stirring.

For flocculation zone 2, a spout 7 is also provided at the bottom of flocculation zone 2, which spout 7 sprays water vertically upwards. Meanwhile, a water collecting pipe 10 is arranged between the coagulation zone 1 and the flocculation zone 2, the arrangement position of the water collecting pipe 10 is not limited, and the water collecting pipe can be arranged at the lower part of the coagulation zone 1 or in the middle part of the coagulation zone 1, so long as the water injection operation into the flocculation zone 2 can be realized.

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2; as shown in fig. 3, a coagulation water receiving chamber 16 is provided inside the coagulation zone 1, and the coagulation water receiving chamber 16 is formed by welding a coagulation water receiving plate 17 to the inner wall of the coagulation zone 1, for example, the coagulation water receiving plate 17 may be made of two flat plates welded together at an obtuse angle, and the length of the coagulation water receiving plate 17 is consistent with the length of the coagulation zone 1. A certain interval is reserved between a flat plate arranged in the vertical direction in the coagulation water receiving plate 17 and the bottom wall of the coagulation zone 1, so that water in the coagulation zone 1 enters the coagulation water receiving chamber 16. For example, a through hole may be provided in the partition between the coagulation zone 1 and the flocculation zone 2, through which the water collecting pipe 10 communicates with the coagulation water receiving chamber 16, thereby introducing the water body in the coagulation water receiving chamber 16 to the flocculation zone 2. The number of the coagulation water receiving chambers 16 may be two, and the two coagulation water receiving chambers 16 are symmetrically arranged with respect to the throat pipe 8 in the coagulation zone 1. The water collection pipe 10 is communicated with two coagulation water collection chambers 16.

The part of the water collection pipe 10 located in the flocculation zone 2 is directly communicated with the bottom of the spray pipe 7 located in the flocculation zone 2. The top water outlet of the spray pipe 7 is also sleeved with a throat pipe 8, the throat pipe 8 is vertically arranged and a certain interval is reserved between the top of the tank body, and the pipe diameter of the throat pipe 8 is larger than that of the spray pipe 7. The spray pipe 7 is also communicated with a dosing pipe 9, and the medicines are mixed with the water body after entering the spray pipe 7 and then are sprayed upwards.

The water distribution plate 18 may be disposed in the coagulation water receiving chamber 16, and the water distribution plate 18 may be welded to the inner wall of the coagulation zone 1 or may be welded to the inner wall of the coagulation water receiving plate 17. When there are a plurality of water distribution plates 18, the plurality of water distribution plates 18 may be alternately arranged along the vertical direction staggered joint. For example, each water distribution plate 18 may be disposed in a horizontal direction. By the arrangement, water inlet resistance can be increased, so that water is uniformly fed into the coagulation water receiving chamber 16, and on the other hand, the hydraulic direction and speed are changed, so that coagulation mixing is facilitated.

The hydraulic guide piece 19 may be disposed at the outer side of the coagulation water collecting plate 17, and the hydraulic guide piece 19 may be inclined towards the bottom of the coagulation zone 1, so that when the water body moves downwards, the water body is preferentially participated in the circulation stirring process through the gap between the throat pipe 8 and the spray pipe 7, and the rest water body enters the coagulation water collecting chamber 16.

Wherein, the dosing pipe 9 of the coagulation zone 1 and the dosing pipe 9 of the flocculation zone 2 can be respectively used for adding different medicines. For example, the added drug may be polymeric alumina, polyacrylamide, polymeric ferric sulfate, or the like. The pipe diameter of the spray pipe 7 gradually decreases along the direction close to the throat pipe 8, so that the spray pipe can accelerate the sprayed water body, and the mixing effect is improved. The water body is sprayed out of the spray pipe 7, enters the throat pipe 8 and is sprayed out of the top of the throat pipe 8. The pipe diameter of the throat pipe 8 is gradually increased along the direction close to the top of the tank body, so that the water body is diffused to the periphery to be discharged.

For example, the top of the flocculation zone 2 can be sealed, and water body is ejected out through the throat pipe 8 and then collides with the top of the tank body, so that the mixing and stirring effects can be improved. Under the action of gravity, the water body falls downwards, is sucked into the throat pipe 8 from the gap between the throat pipe 8 and the spray pipe 7 under the action of low pressure, and is circularly stirred again. For the whole flocculation area 2, the stirring and mixing of the water body and the medicines completely depend on the self kinetic energy of the water body, and an additional stirrer is not required to be arranged for stirring. The jet pipe 7 in the flocculation area 2 is sprayed to form a micro low pressure, so that the stirring of the internal circulation is not severe, the integrity of the flocs is ensured, and the breaking of the alum flocs is effectively reduced.

Wherein, the shower nozzle in the coagulation zone 1 and the shower nozzle in the coagulation zone 1 all form low pressure because of the injection water, and the water in the jar body can not flow back to the medicine jar pollution medicament through the dosing pipe 9 under the condition that does not have the check valve to the dosing pipe 9.

For example, in case of a large amount of water, in order to increase the throughput of a single plant, one independent coagulation zone 1 may be provided, followed by irradiation of a plurality of flocculation zones 2.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the embodiment is provided with a water body accelerating device in the coagulation area 1 and the flocculation area 2 respectively, the water body accelerating device is provided with a spray pipe 7 and a throat pipe 8, and a water inlet mask of the throat pipe 8 is arranged above the spray pipe 7 to form an accelerating water channel. After entering the spray pipe 7 from the water inlet of the reactor, at least one part of the inner diameter of the spray pipe 7 is reduced, so that the water body can be accelerated after flowing out of the spray pipe 7 and then passes through an acceleration water channel, and the water body is sprayed out from the top opening of the throat pipe 8 and is dispersed to the periphery. Under the action of gravity, the water body falls down, under the action of low pressure, the water body enters an acceleration water channel through the interval between the throat pipe 8 and the spray pipe 7, and the water body and the medicines in the coagulation zone 1 are stirred in a hydraulic circulation mode. One end of the water collecting pipe 10 is communicated with a coagulation water receiving chamber 16 in the coagulation zone 1, the other end of the water collecting pipe is communicated with a spray pipe 7 in the flocculation zone 2, the spray pipe 7 arranged in the flocculation zone 2 and the venturi tube 8 stir water and medicines in the flocculation zone 2 in the same way of hydraulic circulation, and the stirred water can flow into a downstream sedimentation zone 3 for subsequent purification. In the whole process, the stirring is carried out by means of the kinetic energy of the water body, the stirrer is not required to be arranged in the coagulation area 1 and the flocculation area 2, the power load of the whole self-circulation high-density suspended sludge filtration and sedimentation water purifier is reduced, the running cost is reduced, and meanwhile, the stirrer is not required to be maintained or replaced, so that the whole maintenance burden of the self-circulation high-density suspended sludge filtration and sedimentation water purifier is reduced.

The water flowing out of the flocculation zone 2 continuously enters the sedimentation zone 3, and for the sedimentation zone 3, independent structures can be respectively arranged between the flocculation zone 2 and the sedimentation zone 3, and a partition plate can be shared at the adjacent part of the sedimentation zone 3 and the flocculation zone 2.

In this embodiment, an opening may be provided at a position of the partition plate between the flocculation zone 2 and the sedimentation zone 3 near the bottom as the first floc passing zone 11 to communicate the flocculation zone 2 with the sedimentation zone 3. For example, the first floc passing area 11 may be an inverted V-shaped channel. The arrangement ensures that the flocculation area 2 is reserved to the greatest extent, and the intensity and the flocculation concentration of internal circulation stirring are satisfied; in addition, the section of the water passing section of the inverted V-shaped channel entering the sedimentation zone 3 is smaller, a larger flow velocity is generated, the pressure difference generated by the velocity difference drives the upper mud-water mixture to descend, a large vortex is formed, and the flocs are enabled to present a suspension ascending state similar to a Brownian motion track.

A first flocculation collection hopper 29 is arranged in the sedimentation zone 3, and the first flocculation collection hopper 29 can be of a conical funnel structure, as shown in fig. 2, and an inclined plate and a vertical plate which are gradually inclined upwards are arranged on the right side of the sedimentation zone 3, so that a conical funnel structure is formed. A certain interval is reserved between the top of the first floc collecting hopper 29 and the top of the tank body so as to allow water to pass through. When the water body carries the flocs to flow through, the high-density flocs are preferentially settled into the first floc collecting hopper 29, namely, the high-quality high-density flocs are recycled.

Upstream of the first floc collecting hopper 29 in the sedimentation zone 3, a floc fluidized bed chamber 4 is also provided, and due to the effect of the acceleration and rising of the water body, smaller flocs are continuously gathered to form larger flocs, a fluidized bed with continuously increased floc concentration is formed in the region, and the small colloidal particles passing through are intercepted, gathered and filtered, so that most suspended colloids of the water body can be removed. When the flocs accumulate to a certain extent, the high-density flocs fall into the downstream first floc collecting hopper 29, and the low-density flocs pass through the first floc collecting hopper 29 and continue to be conveyed downstream along with the water body.

Wherein, can set up the flocculating constituent circulation equipment and collect the bottom of the bucket 29 to link to each other with the first flocculating constituent, this flocculating constituent circulation equipment can be the pipeline of spray tube 7 and first flocculating constituent collection bucket 29 in the direct connection coagulation zone 1, rely on the low pressure to suck the high-density flocculating constituent into the coagulation zone 1. Or when starting debugging or treating low turbidity water, pumping out high-density floccules through the pump body and conveying the high-density floccules to the coagulation area 1, so as to increase the amount of floccules in the coagulation area 1. Wherein, the pipeline of the flocculation circulation device can be communicated with one side of the spray pipe 7 opposite to the dosing pipe 9. By the arrangement, the residual medicament in the floccule reacts again, so that the medicament usage amount is greatly reduced, the medicament effective rate is improved, the chemical medicament residues in the discharged water body are greatly reduced, and the environmental pollution is reduced.

Wherein, can set up a inclined separating plate 26 in the bottom of first floc collection fill 29, this separating plate 26 is located first floc collection fill 29 and is directed towards one side of first floc through region 11, and this inclination of separating plate 26 can be adjusted as required, guarantees that the water can play the effect of blowing to the bottom of floc fluidized bed room 4, prevents the floc deposit. On the other hand, the separating plate 26 changes the water flow direction, increases the motion track amount of the flocs in the flocs fluidized bed chamber 4, and plays the adsorption function to the greatest extent.

Wherein, can install first guide plate 23 at the lateral wall of first floc collection fill 29, this first guide plate 23 is towards the bottom direction slope of sedimentation zone 3, this first guide plate 23 sets up in first floc collection fill 29 towards flocculation zone 2's one side. So arranged, the first deflector 23 is impacted to force the flocs to descend when the flocs ascend, and after the flocs ascend to the top, the reduction of the ascending flow rate can also force part of the flocs to slide downwards to the bottom of the flocs fluidized bed chamber 4 through the separating plate 26 so as to balance the flocs concentration in the flocs fluidized bed chamber 4. For example, a through hole may be formed on the plate surface of the first baffle 23, so as to facilitate timely exhausting of the gas, and prevent formation of air resistance and large bubbles, thereby affecting the hydraulic effect.

Wherein, the inner wall in the first floc collecting hopper 29 can be welded with mutually crossed rod bodies for assisting in separating high-density flocs, and can play a role in resisting turbulence.

A hydraulic channel 5 is also arranged in the sedimentation zone 3, the hydraulic channel 5 is positioned at the downstream of the first floc collecting hopper 29, the hydraulic channel 5 is a vertical channel, a floc sedimentation chamber 6 is arranged at the downstream of the hydraulic channel 5, a second floc passing zone 12 is arranged at the bottom of the hydraulic channel 5, and the hydraulic channel 5 is communicated with the floc sedimentation chamber 6.

Wherein, a third deflector 25 may be disposed in the hydraulic channel 5, the third deflector 25 is inclined toward the bottom of the first floc collecting bucket 29, for example, the inclination angle of the third deflector 25 may be consistent with the cone angle of the first floc collecting bucket 29; the water flowing downwards impacts the inner angle of the first floc collecting hopper 29 under the guidance of the third guide plate 25 and then enters the downstream floc settling chamber 6, thereby being beneficial to improving the mixing effect and the space utilization rate.

FIG. 4 is a cross-sectional view taken at B-B in FIG. 2, and FIG. 5 is a cross-sectional view taken at C-C in FIG. 2; as shown in fig. 4 and 5, for the floc settling chamber 6, a whole row of second floc collection hoppers 30 may be provided along the length direction of the tank, for example, four second floc collection hoppers 30 may be provided. For example, each second flocculation collection bucket 30 is located on a central line along the length direction of the self-circulation high-density suspended sludge filtration and sedimentation water purifier, the bottom of each second flocculation collection bucket 30 is connected with the bottom of the flocculation sedimentation chamber 6, and each second flocculation collection bucket 30 is vertically arranged and is opened towards the top of the flocculation sedimentation chamber 6. Above the second floc collection bin 30 is provided a separator tube stack 14, the separator tube stack 14 comprising a plurality of draft tubes. For example, the draft tube may be disposed vertically or may be disposed obliquely. After entering the floc settling chamber 6 from the hydraulic channel 5, the water body flows upwards through the second floc passing region 12, the larger flocs directly sink into the second floc collecting hopper 30, the other part of flocs and the water body settle into the second floc collecting hopper 30 after passing through the separation tube set 14, and the clean water flows out from the top water outlet of the separation tube set 14.

Wherein, the two separating tube sets 14 can be mirror image setting, during installation, can be with the help of the mounting panel of an inverted V type, weld the both ends of the mounting panel of this inverted V type respectively on the inner wall at the both ends of floc settling chamber 6 earlier, then weld one of them separating tube set 14 on one of them face of the mounting panel of this inverted V type, another separating tube set 14 welds on another face of the mounting panel of this inverted V type. Wherein, can set up the through-hole in the contained angle department of the mounting panel of this reverse V type to exhaust.

Wherein, both sides of the second collecting hopper are provided with a second guide plate 24, one end of the second guide plate 24 is connected with the outer side wall of the second floc collecting hopper 30, and the other end extends towards the bottom wall of the floc settling chamber 6. For example, the angle between the second baffle 24 and the horizontal plane may be set as required, and is not particularly limited herein. Wherein a certain space is left between the second deflector 24 and the bottom of the floc settling chamber 6 to form a third floc passing area 13. The second deflector 24, the outer side wall of the second floc collecting hopper 30 and the area between the bottoms of the floc settling chambers 6 form a water distribution area 21, the water distribution area 21 is communicated with the second floc passing area 12, and water flowing out of the hydraulic channel 5 through the second floc passing area 12 directly enters the water distribution area 21 and then flows out through the third floc passing area 13. The cross-sectional shape of the second floc passing area 12 may be designed according to the cross-sectional shape of the water distribution area 21. Due to the existence of the second guide plate 24, the rising speed of water flow can be slowed down, and the trend of rapid rising of part of flocs is blocked; moreover, the second guide plates 24 which are symmetrically distributed are fully beneficial to the bottom space of the floc settling chamber 6, the third floc passing area 13 in the settling water distribution area is a longitudinal gap, the space is smaller, water distribution and water inflow are realized for resistance, and the uniformity of the water quality of the discharged water is ensured.

Wherein, can set up a plurality of deceleration boards 20 at the lateral wall of second floc collection fill 30, this deceleration board 20 can be located the well upper portion of second floc collection fill 30, also can install the inside wall at floc settling chamber 6, and every deceleration board 20 can set up as required with the contained angle between the horizontal plane. By the arrangement, the water speed can be slowed down, turbulence is reduced, disturbance is reduced, and partial flocs slide off; in addition, air holes can be formed in the speed reducing plate 20 to timely exhaust air and avoid air resistance.

Wherein, the inside of the floc settling chamber 6 is also provided with an anti-turbulence plate 22, the anti-turbulence plate 22 is vertically arranged, and the length direction of the anti-turbulence plate 22 is consistent with the length direction of the floc settling chamber 6. For example, the two ends of the turbulence preventing plate 22 may be welded to the inner walls of the two ends of the floc settling chamber 6, respectively. By the arrangement, water flow in the horizontal direction can be prevented from impacting to form turbulent flow, and the sedimentation effect is influenced.

Wherein, the tops of the coagulation area 1 and the flocculation area 2 are arranged in a closed shape. For example, a closed steel plate can be arranged at the top of the coagulation zone 1, and water body is ejected out through the throat pipe 8 and then collides with the top of the tank body, so that the mixing and stirring effects are improved. For example, a closed steel plate can be arranged at the top of the flocculation zone 2, and water body is ejected out through the throat pipe 8 and then collides with the top of the tank body, so that the mixing and stirring effects are improved.

Fig. 6 is a schematic structural view of a U-shaped pipe in the self-circulation high-density suspended sludge filtering and settling water purifier provided in an embodiment of the present invention, as shown in fig. 6, wherein a clear water collecting device is further disposed in the floc settling chamber 6, and the clear water collecting device is located above the separation pipe group 14 and connected to a water outlet of the reactor. For example, the clean water collecting device can be a U-shaped pipe 15, the open end of the U-shaped pipe 15 is connected with the side wall of the floc settling chamber 6, which is close to the hydraulic channel 5, and the other end of the U-shaped pipe 15 opposite to the open end is connected with the water outlet of the reactor; the wall of the U-shaped pipe 15 facing the top wall of the floc settling chamber 6 is provided with a plurality of through holes. After flowing out from the top opening of the separation tube set 14, the water body permeates into the U-shaped tube 15 through the through holes on the U-shaped tube 15 and finally flows out from the water outlet of the reactor. Wherein, one end of the U-shaped pipe 15 connected with the water outlet of the reactor is provided with an air inlet which is suitable for being connected with an external air inlet pipeline. By the arrangement, water can enter with small resistance, water collection uniformity is guaranteed, and the influence of siphon water outlet on the hydraulic conditions near the separation tube set 14 is avoided.

At least one of the coagulation zone 1, flocculation zone 2 and sedimentation zone 3 is provided with a sludge discharge device 27 for discharging sludge.

Wherein, at least one of coagulation zone 1, flocculation zone 2 and sedimentation zone 3 is provided with discharge valve 28, guarantees that inside hydraulic conditions satisfies the technological requirement.

Wherein, the top of this jar body still can set up the manhole to make things convenient for maintainer to get into the jar body.

FIG. 7 is a schematic diagram of the structure of a clean water filter in a self-circulating high-density suspended sludge filter-sedimentation water purifier according to an embodiment of the present invention; FIG. 8 is a right side view of FIG. 1; fig. 9 is a top view of the filter chamber of fig. 7, as shown in fig. 7, 8 and 9, wherein a clean water filter 31 may be provided downstream of the sedimentation zone 3. The clear water filter 31 is divided into a clear water chamber 32, a filter chamber 33 and a suspending chamber 34 from top to bottom; wherein, the filtering chamber 33 comprises two independent chambers, each independent chamber is communicated with the water outlet of the reactor through a first pipeline 38, the bottom of each independent chamber is communicated with the top of the suspending chamber 34, and each independent chamber is communicated with the outside through a second pipeline 39; the first and second pipes 38 and 39 are each provided with a control valve 40. The bottom of the filtering chamber 33 is communicated with the top of the suspending chamber 34, and a filtering material 36 is arranged in the area between the filtering chamber 33 and the suspending chamber 34, for example, the filtering material 36 can be quartz sand; in addition, in order to improve the filtering effect, a plurality of filter caps 37 may be disposed under the filter material 36, and the plurality of filter caps 37 are uniformly disposed in an array. The suspension chamber 34 can communicate with the clean water chamber 32 via a longitudinally arranged clean water channel 35. Wherein, each independent chamber can share one clean water channel 35, and can also have independent clean water channels 35.

During the purge treatment, the control valve 40 on the second line 39 is closed and the control valve 40 on the first line 38 is opened. At this time, the water body enters the clean water chamber 32 through the U-shaped pipe 15, then, the water body in the clean water chamber 32 enters the filter chamber through the first pipeline, the water body in the filter chamber obtains further purification treatment of the filter material 36 and the filter cap 37 before entering the suspension chamber 34, then, the water body enters the suspension chamber 34, and under the action of low pressure, the water body in the suspension chamber 34 can return to the clean water chamber 32 through the clean water channel 35. The treated clean water can be discharged to the outside of the tank through the clean water outlet of the clean water chamber 32.

When flushing, firstly, for convenience of description, two mutually independent chambers in the filtering chamber 33 are respectively marked as a first chamber and a second chamber, if the first chamber needs to be flushed, the control valve 40 on the first pipeline 38 in the first chamber can be closed, and the control valve 40 on the second pipeline 39 in the first chamber can be opened; meanwhile, the control valve 40 on the first pipeline 38 in the second chamber can be opened, and the control valve 40 on the second pipeline 39 in the second chamber can be closed; at this time, the second chamber performs normal filtering operation on the water body. The water in the clean water chamber 32 reversely flows into the first chamber through the clean water channel 35 and is discharged through the second pipeline 39 in the first chamber, and impurities on the filter material 36 and the filter cap 37 in the first chamber can be washed away in the process. And similarly, the second chamber can be flushed.

Fig. 10 is a schematic structural diagram of a self-circulation high-density suspended sludge filtering and settling water purifier according to another embodiment of the present invention, as shown in fig. 10, in another example, the second floc passing area 12 between the floc settling chamber 6 and the hydraulic channel 5 may be replaced by a water pipe 41, and the water pipe 41 connects the floc settling chamber 6 with the hydraulic channel 5, so as to be suitable for making the water in the hydraulic channel 5 enter the floc settling chamber 6. Wherein, in order to improve the water delivery effect and ensure the balance of water pressure everywhere, the pipe diameter of the water delivery pipe 41 gradually decreases along the delivery direction of the water body. Wherein, the end of the water pipe 41 far away from the hydraulic channel 5 can be of a closed structure, and the pipe wall of the water pipe 41 is provided with water spray holes.

FIG. 11 is a schematic illustration of a first floc passing area in a self-circulating high density suspended sludge filter sedimentation water purifier provided in one embodiment of the present invention; FIG. 12 is a schematic illustration of a first floc passing area in a self-circulating high density suspended sludge filter sedimentation water purifier provided in yet another embodiment of the present invention; FIG. 13 is a schematic view of a first floc passing area in a self-circulating high density suspended sludge filter sedimentation water purifier provided in yet another embodiment of the present invention; as shown in fig. 11, 12 and 13, wherein bending plates may be arranged at the first floc passing area 11 to form different water flow trajectories. FIG. 14 is a schematic view of a first floc passing area in a self-circulating high density suspended sludge filter sedimentation water purifier provided in yet another embodiment of the present invention; as shown in FIG. 14, first floc passing area 11 may also be provided with tortuous tubing to create different water flow trajectories. Wherein, the different water inlet modes can be selected according to the needs.

In this embodiment, there may be two or more filter chambers 33, and backwashing and filtering may be performed simultaneously, or only one filter chamber 33 may be operated independently, and a clear water tank is added at the rear stage to perform backwashing independently.

In this embodiment, the tank body may be made of metal material, polymer material, reinforced concrete, glass fiber reinforced plastic, and other materials.

In conclusion, the self-circulation high-density suspended sludge filtering and settling water purifier provided by the embodiment adopts the horizontal cylinder skid-mounted structure, the internal stress is more uniform, the hydraulic condition of the cylinder tank body is better, the whole body can be made large, and the treatment capacity of single-seat equipment is improved.

In summary, the self-circulation high-density suspended sludge filtering and settling water purifier provided in the embodiment is provided with the water distribution plate in the coagulation water receiving chamber, so that water inlet resistance can be increased, water inlet of the coagulation water receiving chamber is uniform, and on the other hand, the hydraulic direction and speed are changed, so that coagulation mixing is facilitated.

The self-circulation high-density suspended sludge filtering and settling water purifier provided in the embodiment is provided with the hydraulic guide piece at the outer side of the coagulation water receiving plate, so that when the water body moves downwards, the water body is preferentially participated in the circulation stirring process through the gap between the throat pipe and the spray pipe, and the rest water body enters the coagulation water receiving chamber.

The self-circulation high-density suspended sludge filtering and settling water purifier provided in the embodiment designs the first flocculation passage area into an inverted V-shaped channel, so that the flocculation in the flocculation area is reserved to the greatest extent, and the strength and the flocculation concentration of internal circulation stirring are met; in addition, the section of the water passing section of the inverted V-shaped channel entering the sedimentation zone is smaller, larger flow velocity is generated, the pressure difference generated by the speed difference drives the upper mud-water mixture to descend, a large vortex is formed, and the flocs are enabled to present a suspension ascending state similar to a Brownian motion track.

The self-circulation high-density suspended sludge filtering and settling water purifier provided in the embodiment is characterized in that the bottom of the first floc collecting hopper is provided with the inclined separating plate, so that the water body can be guaranteed to play a role in purging the bottom of the floc fluidized bed chamber, and floc deposition is prevented. On the other hand, the separating plate changes the water flow direction, increases the motion track amount of the flocs in the flocs fluidized bed chamber, and plays the adsorption function to the greatest extent.

The self-circulation high-density suspended sludge filtering and settling water purifier provided in the embodiment is characterized in that the outer side wall of the first floc collecting hopper is provided with the first guide plate, the first guide plate is impacted when the flocs rise to force the flocs to fall, and after the flocs rise to the top, the reduction of the rising flow velocity can force part of the flocs to slide downwards to the bottom of the floc fluidized bed chamber through the separating plate so as to balance the floc concentration in the floc fluidized bed chamber; and be provided with the through-hole at the face of first guide plate, be favorable to in time exhaust gas, prevent the formation of air lock and big bubble, influence the hydraulic effect.

The self-circulation high-density suspended sludge filtering and settling water purifier provided in the embodiment is provided with the third guide plate in the hydraulic channel, the water flowing downwards is impacted on the inner angle of the first floc collecting hopper under the guidance of the third guide plate, and then enters the downstream floc settling chamber, so that the mixing effect and the space utilization rate are improved.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the embodiment is characterized in that the outer side wall of the second floc collecting hopper is provided with the plurality of speed reducing plates, so that the water speed can be slowed down, the turbulence is reduced, the disturbance is reduced, and the partial flocs slide down; in addition, air holes can be formed in the speed reducing plate, so that air can be discharged timely, and air resistance is avoided.

The self-circulation high-density suspended sludge filtering and settling water purifier provided by the embodiment is more uniform in internal stress by adopting the horizontal cylinder skid-mounted structure, the hydraulic condition of the cylinder tank body is better, the whole body can be made large, and the treatment capacity of single-seat equipment is improved.

It should be noted that the low pressure referred to in the present application is a relative concept, and the design of each reflux is based on the bernoulli principle, that is, the pressure at the position where the liquid flow rate is high is smaller than the pressure at the position where the liquid flow rate is low, and the reflux is realized by the pressure difference generated by the two positions.

In the present application, high density means that the suspended sludge in the water body exceeds 4g/L.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the application.

Claims

1. A self-circulating high-density suspended sludge filtration and sedimentation water purifier, which is characterized by comprising:

the coagulation zone (1) is provided with a reactor water inlet;

the coagulation water receiving chamber (16) is arranged in the coagulation area (1), and a water inlet of the coagulation water receiving chamber (16) is communicated with the coagulation area (1);

a water collecting pipe (10), one end of which is communicated with the coagulation water receiving chamber (16) and is suitable for collecting water in the coagulation water receiving chamber (16);

the flocculation area (2) is arranged at the downstream of the coagulation area (1), and the other end of the water collecting pipe (10) enters the flocculation area (2);

the water body accelerating device is respectively arranged in the coagulation area (1) and the flocculation area (2), and comprises:

-a nozzle (7) adapted to be connected to the other end of the reactor water inlet or the water collection pipe (10), at least a portion of the inner diameter of the nozzle (7) decreasing in the direction of flow of the body of water;

the throat pipe (8) comprises a throat pipe (8) water inlet and a throat pipe (8) water outlet, the throat pipe (8) water inlet mask is arranged above the spray pipe (7), an accelerating water channel is formed between the spray pipe (7) and the throat pipe (8), and an interval exists between the throat pipe (8) and the spray pipe (7);

the sedimentation zone (3) is arranged at the downstream of the flocculation zone (2), and a reactor water outlet is arranged on the sedimentation zone (3);

the clear water filter (31) is arranged at the downstream of the sedimentation zone (3), and the clear water filter (31) is communicated with the water outlet of the reactor;

the inner wall of the coagulation area (1) is provided with a coagulation water receiving plate (17), the coagulation water receiving plate (17) and the inner wall of the coagulation area (1) form a coagulation water receiving chamber (16), a water inlet of the coagulation water receiving chamber (16) is positioned at the bottom of the coagulation water receiving chamber (16), and the coagulation water receiving chamber is suitable for enabling water in the coagulation area (1) to enter the coagulation water receiving chamber (16);

A water distribution plate (18) extending towards the interior of the coagulation water receiving chamber (16) is arranged on the coagulation water receiving plate (17);

the outer wall of the coagulation water receiving chamber (16) is provided with a hydraulic guide piece (19), and the hydraulic guide piece (19) extends towards the direction of the throat pipe (8);

the water distribution plate (18) is horizontally arranged, and the hydraulic guide piece (19) inclines towards the bottom of the coagulation zone (1).

2. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 1, characterized in that,

the interior of the clean water filter (31) is divided into a clean water chamber (32), a filter chamber (33) and a suspension chamber (34) from top to bottom;

the filter chamber (33) is communicated with the water outlet of the reactor, the bottom of the filter chamber (33) is communicated with the top of the suspending chamber (34), and a filter material (36) is arranged in the area between the filter chamber (33) and the suspending chamber (34);

the suspension chamber (34) is communicated with the clean water chamber (32) through a clean water channel (35) which is longitudinally arranged.

3. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 2, characterized in that,

a plurality of filter caps (37) are arranged between the filter chamber (33) and the suspending chamber (34), and the filter caps (37) are uniformly arranged in an array.

4. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 2, characterized in that,

the filtering chamber (33) comprises two independent chambers, each independent chamber is communicated with the water outlet of the reactor through a first pipeline (38), the bottom of each independent chamber is communicated with the top of the suspending chamber (34), and each independent chamber is communicated with the outside through a second pipeline (39);

control valves (40) are arranged on the first pipeline (38) and the second pipeline (39).

5. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 1, characterized in that,

at least a part of the spray pipe (7) is arranged in a conical shape along the flowing direction of the water body.

6. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 5, characterized in that,

the throat pipe (8) and the spray pipe (7) are arranged in a corresponding area, and at least one part of the throat pipe is arranged in a conical shape.

7. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 1, characterized in that,

a first flocculation passing area (11) is arranged between the flocculation area (2) and the sedimentation area (3), water enters the sedimentation area (3) through the first flocculation passing area (11), at least one first flocculation collecting hopper (29) is arranged in the sedimentation area (3), and part of the water enters the first flocculation collecting hopper (29);

At least one floc circulation device, one end of which acts in the first floc collection hopper (29) and the other end of which is connected with the spray pipe (7) of at least one water body acceleration device.

8. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 7, characterized in that,

the sedimentation zone (3) further comprises a floc fluidized bed chamber (4) located upstream of the first floc collection hopper (29).

9. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 7, characterized in that,

the sedimentation zone (3) further comprises a hydraulic channel (5) downstream of the first floc collection hopper (29).

10. The self-circulating high-density suspended sludge filter sedimentation water purifier according to claim 9, characterized in that,

the sedimentation area (3) further comprises a floc sedimentation chamber (6) arranged at the downstream of the hydraulic channel (5), and a second floc passing area (12) is arranged between the floc sedimentation chamber (6) and the hydraulic channel (5) and is suitable for enabling water in the hydraulic channel (5) to enter the floc sedimentation chamber (6).

11. The self-circulating high-density suspended sludge filter sedimentation water purifier as claimed in claim 10, characterized in that,

A separation tube group (14) and a plurality of second floc collecting hoppers (30) are arranged in the floc settling chamber (6);

the separation tube group (14) is arranged above the floc settling chamber (6), and the separation tube group (14) comprises a plurality of flow guide tubes;

the plurality of second flocculation collection hoppers (30) are sequentially arranged below the flocculation sedimentation chamber (6) along the length direction of the flocculation sedimentation chamber (6), and the opening of each second flocculation collection hopper (30) is arranged towards the separation tube group (14).

12. The self-circulating high-density suspended sludge filter sedimentation water purifier according to claim 11, characterized in that,

the device also comprises a plurality of second guide plates (24) arranged along the height direction, wherein the second guide plates (24) are arranged at the outer side of the second flocculation collection hopper (30), one end of each second guide plate is connected with the outer side wall of the second flocculation collection hopper (30), and the other end of each second guide plate extends towards the bottom wall of the flocculation sedimentation chamber (6);

and a space is reserved between the second guide plate (24) and the bottom wall of the floc settling chamber (6) to form a third floc passing area (13).

13. The self-circulating high-density suspended sludge filter sedimentation water purifier of claim 12, characterized in that,

The second guide plates (24) comprise two symmetrically arranged at two sides of the second floc collecting hopper (30).

14. The self-circulating high-density suspended sludge filter sedimentation water purifier of claim 12, characterized in that,

the second floc passing area (12) is positioned below the floc settling chamber (6);

the second guide plate (24), the outer side wall of the second floc collecting hopper (30) and the area between the bottoms of the floc settling chambers (6) form a water distribution area (21), and the second floc passing area (12) is communicated with the water distribution area (21).

15. The self-circulating high-density suspended sludge filter sedimentation water purifier of claim 14, wherein,

the anti-turbulence plate (22) is further arranged in the floc settling chamber (6), the anti-turbulence plate (22) is vertically arranged, and the length direction of the anti-turbulence plate (22) is consistent with the length direction of the floc settling chamber (6).

16. The self-circulating high-density suspended sludge filter sedimentation water purifier according to claim 11, characterized in that,

the inside of the floc settling chamber (6) is also provided with a clear water collecting device which is positioned above the separation tube group (14) and is connected with the water outlet of the reactor.