Self-circulation rapid muddy water purification device

Abstract

The utility model provides a self-circulation rapid muddy water purification device, which belongs to the technical field of water treatment devices and comprises a main body, a first annular piece, a second annular piece and a third annular piece, the area between the second annular piece and the inner wall of the main body forms a settling area, and the area between the third annular piece and the inner wall of the main body and the outer side of the second annular piece forms a mud and sand settling area; an inlet of the mud and sand settling area is communicated with an external sewage source, and a sand body outlet of the mud and sand settling area is communicated with the outside of the main body; an outlet of the sludge concentration area is communicated with an inlet of the settling area; according to the scheme, after external sewage enters the mud and sand settling area, mud and sand in a water body are settled into the mud and sand settling area, the water body subjected to sand removal enters the sludge concentration area, and the water body subjected to sludge concentration enters the settling area.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment devices, in particular to a self-circulating muddy water rapid purification device. Background Art

[0002] The sludge generated by the water treatment sedimentation tank, filter tank backwash water, coal washing water, ash water, and centrifugal dehydration water are sewage with high suspended solids concentration, with a water content of about 98-99%. For this type of sewage, sludge concentration + subsequent treatment is usually used for sewage treatment. Among them, the main purpose of concentration is to reduce the volume of sludge, which is very beneficial for reducing the burden of subsequent treatment processes such as digestion, dehydration, drying and incineration. However, this type of sewage usually contains a large amount of mud and sand, which is not only easy to block the flow channel during the concentration process, but also affects the treatment effect of the subsequent sludge treatment process. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect of the prior art that there is no separation of mud and sand, thereby providing a self-circulating mud and water rapid purification device.

[0004] The utility model provides a self-circulating muddy water rapid purification device, comprising:

[0005] main body;

[0006] a first annular member, disposed concentrically with the main body and inside the main body, wherein an inner space of the first annular member forms a sludge concentrating area for concentrating sludge;

[0007] A second annular member is disposed inside the main body concentrically with the main body, and the second annular member is located outside the first annular member; an area between the second annular member and the inner wall of the main body forms a precipitation area;

[0008] A third annular member is disposed inside the main body concentrically with the main body, and the third annular member is located outside the second annular member; the area between the third annular member, the inner wall of the main body and the outer side of the second annular member forms a mud and sand settling area; the inlet of the mud and sand settling area is connected to an external sewage source, and the sand body outlet of the mud and sand settling area is connected to the outside of the main body; the outlet of the sludge concentration area is connected to the inlet of the sedimentation area;

[0009] After the external sewage enters the mud and sand settling area, the mud and sand in the water body settle in the mud and sand settling area, the water body after sand removal enters the sludge concentration area, and the water body after sludge concentration enters the sedimentation area.

[0010] As a preferred solution, the second annular member is in a cone-shaped structure as a whole, so that after the water enters the sedimentation area, the sludge in the water can slide along the inner wall of the third annular member to the bottom of the sedimentation area;

[0011] The third annular member is in a cone-shaped structure as a whole, so that after the water body enters the mud and sand settling area, the sand in the water body can slide along the inner wall of the third annular member to the bottom of the mud and sand settling area.

[0012] As a preferred solution, it also includes a cyclone separation plate, which is arranged in the mud and sand settling area, one end of the cyclone separation plate is connected to the outer side wall of the second annular member, and the other end is connected to the inner side wall of the third annular member;

[0013] The cyclone separation plate extends along the circumference of the second annular member for one circle, so that the cyclone separation plate, the second annular member and the third annular member form an annular cyclone separation chamber;

[0014] A sand sliding slot is provided between the cyclone separation plate and the third annular member, and the sand sliding slot serves as an outlet of the cyclone separation bin;

[0015] The inlet of the cyclone separation chamber is connected to an external sewage source. After the external sewage enters the cyclone separation chamber, it enters the mud and sand settling area from the sand sliding seam.

[0016] As a preferred embodiment, it also includes a cyclone guide plate, which is arranged in the cyclone separation chamber, and a guide area is formed between the cyclone guide plate and the cyclone separation chamber, and the guide area is connected to the cyclone separation chamber, and an external sewage source is connected to the guide area, and the external sewage first enters the guide area and then enters the cyclone separation chamber.

[0017] As a preferred solution, it also includes a first water inlet pipe, one end of which is connected to the mud and sand settling area, and the other end of which is connected to the sludge concentration area.

[0018] As a preferred solution, it further comprises a sand discharge pipe, one end of which is connected to the bottom of the mud and sand settling area, and the other end of which extends to the outside of the main body.

[0019] As a preferred solution, it also includes a mud discharge pipe, one end of which extends into the bottom of the sedimentation area, and the other end of which extends to the outside of the main body.

[0020] As a preferred solution, it also includes a central tube, a water inlet ejector and a throat;

[0021] The central tube is arranged concentrically with the main body in the main body, and the central tube is located in the sludge concentration zone, and the area between the central tube and the first annular member forms a sludge maturation buffer zone, and the outlet of the sludge maturation buffer zone is connected to the inlet of the sedimentation zone;

[0022] The throat pipe is concentrically arranged in the central tube, the area between the throat pipe and the central tube forms a sludge reaction zone, and the outlet of the sludge reaction zone is connected to the inlet of the sludge maturation buffer zone;

[0023] The inlet of the water inlet ejector is connected to the first water inlet pipe, and the outlet of the water inlet ejector extends into the throat pipe;

[0024] The water body enters the throat pipe after being accelerated by the water inlet ejector, rises along the throat pipe and is released to the sludge reaction zone at the top of the throat pipe, then enters the sludge maturation buffer zone, and finally enters the sedimentation zone.

[0025] As a preferred solution, it also includes a baffle channel, which is arranged between the sludge reaction zone and the sludge maturation buffer zone;

[0026] The outlet of the sludge reaction zone is connected to the inlet of the baffle channel, and the outlet of the baffle channel is divided into a first branch and a second branch. The water along the first branch flows back into the throat, and the water along the second branch enters the sludge maturation buffer zone.

[0027] It also includes a reflux channel, one end of which is connected to the sludge maturation buffer zone, and the other end of which is connected to the sludge reaction zone;

[0028] The water entering the sludge maturation buffer zone along the second branch is divided into a third branch and a fourth branch. The water along the third branch enters the sedimentation zone, and the water along the fourth branch enters the throat through the reflux channel.

[0029] As a preferred solution, an inclined tube separation device and a water outlet trough are provided in the sedimentation area, and the inclined tube separation device is located upstream of the water outlet trough;

[0030] The water in the sedimentation area enters the water outlet trough after sedimentation and separation by the inclined tube separation device, and then is discharged from the main body through the water outlet trough.

[0031] The technical solution of this utility model has the following advantages:

[0032] 1. The utility model provides a self-circulating muddy water rapid purification device, comprising a main body, a first annular member, a second annular member and a third annular member; in this scheme, after the external sewage enters the mud and sand settling area, the mud and sand in the water body settle in the mud and sand settling area, the water body after sand removal enters the sludge concentration area, and the water body after the sludge is concentrated enters the sedimentation area.

[0033] 2. The utility model provides a self-circulating mud and water rapid purification device, which also includes a cyclone separation plate. By setting the cyclone separation plate, the mud and sand in the sewage can be pre-treated. Because the initial flow velocity of the sewage is relatively large, if the cyclone separation plate is not set, the sewage with a large flow rate directly enters the containing space, which will cause the water flow velocity in the containing space to be too fast, which is not conducive to the separation of mud and sand from sewage. By setting the cyclone separation plate, the sewage will form a cyclone in the containing space, and the cyclone effect is to achieve cyclone separation, thereby achieving the separation of heavy substances.

[0034] 3. The utility model provides a self-circulating muddy water rapid purification device, which is also provided with a cyclone guide plate, which is arranged in the cyclone separation chamber, and a guide area is formed between the cyclone guide plate and the cyclone separation chamber, the guide area is connected with the cyclone separation chamber, the external sewage source is connected with the guide area, and the external sewage first enters the guide area and then enters the cyclone separation chamber. The guide area can further ensure the uniformity of the flow direction of the water entering the cyclone separation chamber, and further increase the cyclone separation effect.

[0035] 4. The utility model provides a self-circulating muddy water rapid purification device, wherein the third annular member is cone-shaped, and the sand in the water body can slide along the inner wall of the third annular member to the bottom of the mud and sand sedimentation area to facilitate the collection of mud and sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 The utility model provides a schematic diagram of the overall structure of a self-circulating muddy water rapid purification device.

[0038] Figure 2 The utility model provides a structural schematic diagram of a drainage plate of a self-circulating muddy water rapid purification device.

[0039] Figure 3 A schematic diagram of an alternative implementation of a self-circulating muddy water rapid purification device provided by the utility model.

[0040] Description of reference numerals:

[0041] 1. Main body; 11. Sedimentation zone; 12. Mud and sand settling zone; 13. Sludge concentration zone; 14. Sludge maturation buffer zone; 15. Sludge reaction zone; 2. First annular member; 3. Second annular member; 4. Cyclone separation plate; 41. Cyclone separation chamber; 42. Sand sliding seam; 43. Cyclone guide plate; 44. Guide zone; 5. First water inlet pipe; 6. Dosing pipe; 7. Sand discharge pipe; 8. Third annular member; 9. Mud discharge pipe; 10. Central tube; 101. Water inlet ejector; 102. Throat pipe; 103. Baffle channel; 104. Inclined pipe separation device; 105. Water outlet tank; DETAILED DESCRIPTION

[0042] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0044] like Figure 1 As shown, in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] like Figure 1As shown, this embodiment provides a self-circulating muddy water rapid purification device, including a main body 1, a first annular member 2, a second annular member 3 and a third annular member 8; wherein the first annular member 2 is arranged in the main body 1 concentrically with the main body 1, and the internal space of the first annular member 2 forms a sludge concentration area 13 for concentrating sludge; wherein the second annular member 3 is arranged in the main body 1 concentrically with the main body 1, and the second annular member 3 is located on the outside of the first annular member 2; the area between the second annular member 3 and the inner wall of the main body 1 forms a sedimentation area 11; the third annular member 8 is arranged in the main body 1 concentrically with the main body 1, and the third annular member 8 Located on the outside of the second ring-shaped member 3; the area between the third ring-shaped member 8 and the inner wall of the main body 1 and the outside of the second ring-shaped member 3 forms a mud and sand settling area 12; the inlet of the mud and sand settling area 12 is connected to the external sewage source, and the sand body outlet of the mud and sand settling area 12 is connected to the outside of the main body 1; the outlet of the sludge concentration area 13 is connected to the inlet of the sedimentation area 11; in this embodiment, after the external sewage enters the mud and sand settling area 12, the mud and sand in the water body settles into the mud and sand settling area 12, the water body after sand removal enters the sludge concentration area 13, and the water body after sludge concentration enters the sedimentation area 11.

[0047] It should be noted that the present embodiment only requires the introduction of sewage, and the muddy water purification process can be completed during the flow of sewage, and the present device can be adaptively adjusted. If the water intake is large, the water output will also increase synchronously.

[0048] Furthermore, the second ring member 3 is a cone-shaped structure as a whole, so that after the water body enters the sedimentation area 11, the sludge in the water body can slide along the inner wall of the third ring member 8 to the bottom of the sedimentation area 11; the third ring member 8 is a cone-shaped structure as a whole, so that after the water body enters the mud and sand sedimentation area 12, the sand in the water body can slide along the inner wall of the third ring member 8 to the bottom of the mud and sand sedimentation area 12.

[0049] It should be noted that maintenance windows are also provided on the side walls of the second annular member 3 and the third annular member 8, through which the interior of the second annular member 3 can be repaired later. Mud or sludge will naturally slide along the inner wall to the bottom under the action of gravity.

[0050] Furthermore, it also includes a cyclone separation plate 4, which is arranged in the mud and sand settling area 12, one end of the cyclone separation plate 4 is connected to the outer wall of the second ring member 3, and the other end is connected to the inner wall of the third ring member 8; the cyclone separation plate 4 extends around the circumference of the second ring member 3 so that the cyclone separation plate 4, the second ring member 3 and the third ring member 8 form an annular cyclone separation chamber 41; a sand sliding seam 42 is provided between the cyclone separation plate 4 and the third ring member 8, and the sand sliding seam 42 serves as the outlet of the cyclone separation chamber 41; the inlet of the cyclone separation chamber 41 is connected to an external sewage source, and after the external sewage enters the cyclone separation chamber 41, it enters the mud and sand settling area 12 from the sand sliding seam 42.

[0051] It should be noted that after the external sewage enters the cyclone separation chamber 41, it will swirl along the cyclone separation chamber 41, where the mud and sand will be concentrated at the bottom of the cyclone separation chamber 41 due to the large gravity, and enter the mud and sand settling area through the sand sliding seam 42 along the side wall of the third ring member 8, and then the mud and sand will be gathered at the bottom of the third ring member 8 under the action of gravity. By setting the cyclone separation plate 4, the mud and sand in the sewage can be pre-treated, because the initial flow velocity of the sewage is large. If the cyclone separation plate 4 is not set, the sewage with a large flow rate directly enters the accommodation space, which will cause the water flow velocity in the accommodation space to be too fast, which is not conducive to the separation of mud and sand from sewage. By setting the cyclone separation plate 4, the sewage will form a cyclone in the accommodation space, thereby reducing the flow velocity of the sewage.

[0052] Further, such as Figure 2 As shown, it also includes a swirl guide plate 43, which is arranged in the swirl separation chamber 41, and a guide area 44 is formed between the swirl guide plate 43 and the swirl separation chamber 41, and the guide area 44 is connected to the swirl separation chamber 41, and the external sewage source is connected to the guide area 44, and the external sewage first enters the guide area 44, and then enters the swirl separation chamber 41. It should be noted that the external sewage first enters the guide area 44, and then enters the swirl separation chamber 41. The guide area 44 can further ensure the uniformity of the flow direction of the water body entering the swirl separation chamber 41, and further increase the swirl separation effect. In this embodiment, the swirl guide plate 43 is in the shape of a quarter of a circular ring. The length of the swirl guide plate 43 can be appropriately increased or decreased according to actual usage.

[0053] Furthermore, it also includes a first water inlet pipe 5, one end of which is connected to the mud and sand settling area 12, and the other end of which is connected to the sludge concentration area 13. The first water inlet pipe 5 is connected to the mud and sand settling area 12 near the top. After the sewage enters the mud and sand settling area 12, the water level rises over time, and the sewage enters the sludge concentration area 13 through the first water inlet pipe 5. In this embodiment, there are two first water inlet pipes 5, which are symmetrically distributed.

[0054] Furthermore, a sand discharge pipe 7 is provided, one end of which is connected to the bottom of the mud and sand settling area 12, and the other end of which extends to the outside of the main body 1; when there is too much mud and sand in the mud and sand settling area 12, the sand discharge pipe 7 can be opened manually to discharge the excess mud and sand to prevent the mud and sand settling area 12 from being blocked.

[0055] Furthermore, it also includes a mud discharge pipe 9 , one end of which extends into the bottom of the sedimentation area 11 , and the other end of which extends to the outside of the main body 1 .

[0056] Furthermore, it also includes a central tube 10, a water inlet ejector 101 and a throat 102. The central tube 10 is arranged concentrically with the main body 1 in the main body 1, and the central tube 10 is located in the sludge concentration area 13, and the area between the central tube 10 and the first annular member 2 forms a sludge maturation buffer area 14, and the outlet of the sludge maturation buffer area 14 is connected to the inlet of the sedimentation area 11;

[0057] The throat pipe 102 is concentrically arranged in the central tube 10, and the area between the throat pipe 102 and the central tube 10 forms a sludge reaction zone 15, and the outlet of the sludge reaction zone 15 is connected to the inlet of the sludge maturation buffer zone 14;

[0058] The inlet of the water inlet ejector 101 is connected to the first water inlet pipe 5, and the outlet of the water inlet ejector 101 extends into the throat pipe 102;

[0059] The water body is accelerated by the water inlet ejector 101 and enters the throat pipe 102. The water body rises along the throat pipe 102 and is released to the sludge reaction zone 15 at the top of the throat pipe 102. The water body then enters the sludge maturation buffer zone 14 and finally enters the sedimentation zone 11. It should be noted that the water inlet ejector 101 is used to accelerate the flow rate of the water body.

[0060] It should be noted that in this embodiment, a dosing pipe 6 is also provided, and the dosing pipe 6 is connected to the first water inlet pipe 5. The dosing pipe 6 is used to add coagulant. It should be noted that the dosing pipe 6 is connected to the injection head of the water inlet injector 101, so that the reagents are mixed after injection, and the reagents will not flow back (they will flow back after water is cut off, and the dosing pipe 6 also has a check valve). Further, it also includes a baffle channel 103, and the baffle pipe is arranged between the sludge reaction zone 15 and the sludge maturation buffer zone 14;

[0061] The outlet of the sludge reaction zone 15 is connected to the inlet of the baffle channel 103. The outlet of the baffle channel 103 is divided into a first branch and a second branch. The water along the first branch flows back to the throat 102, and the water along the second branch enters the sludge maturation buffer zone 14.

[0062] Furthermore, a reflux channel is also provided, one end of which is connected to the sludge maturation buffer zone 14, and the other end of which is connected to the sludge reaction zone 15;

[0063] The water entering the sludge maturation buffer zone 14 along the second branch is divided into a third branch and a fourth branch. The water along the third branch enters the sedimentation zone 11, and the water along the fourth branch enters the throat 102 through the reflux channel.

[0064] It should be noted that if Figure 3 As shown, as an alternative implementation, the distance of the third branch is increased, and the height of the first ring 2 is increased, so that a channel suitable for water circulation is provided between the first ring 2 and the top of the main body 1, and the third branch needs to pass through the channel between the first ring 2 and the top of the main body 1. Compared with the above embodiment, the distance of the third branch is increased, and the time that the water body is in the sludge concentration area 13 is increased, thereby increasing the concentration effect.

[0065] Furthermore, an inclined tube separation device 104 and a water outlet trough 105 are provided in the sedimentation area 11, and the inclined tube separation device 104 is located upstream of the water outlet trough 105;

[0066] It should be noted that the function of the inclined tube separation device 104 is to form multiple channels, through which the fine particles in the water body can be precipitated to increase the cleanliness of the water body. It should be noted that the existing market concentration is not integrated, but simply concentrated, and the supernatant is returned to the original system for further treatment, and there is no sand separation effect. This equipment concentrates and treats together, the supernatant is clear, and the sludge enters the concentration section to the greatest extent, and no longer returns to the original system for further treatment.

[0067] The water in the sedimentation area 11 enters the water outlet trough 105 after sedimentation and separation by the inclined tube separation device 104 , and then is discharged from the main body 1 through the water outlet trough 105 .

[0068] It should be noted that the inclined tube separation device 104 has a filtering effect, preventing sludge from passing through, thereby ensuring the cleanliness of the water in the outlet tank 105.

[0069] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A self-circulating muddy water rapid purification device, characterized in that: include: Subject (1); A first annular member (2) is arranged inside the main body (1) concentrically with the main body (1), wherein the internal space of the first annular member (2) forms a sludge concentrating area (13) for concentrating sludge; A second annular member (3) is arranged inside the main body (1) concentrically with the main body (1), and the second annular member (3) is located outside the first annular member (2); the area between the second annular member (3) and the inner wall of the main body (1) forms a precipitation area (11); A third annular member (8) is arranged inside the main body (1) concentrically with the main body (1), and the third annular member (8) is located outside the second annular member (3); the area between the third annular member (8), the inner wall of the main body (1) and the outer side of the second annular member (3) forms a mud and sand settling area (12); the inlet of the mud and sand settling area (12) is connected to an external sewage source, and the sand body outlet of the mud and sand settling area (12) is connected to the outside of the main body (1); the outlet of the sludge concentration area (13) is connected to the inlet of the sedimentation area (11); After the external sewage enters the mud and sand settling area (12), the mud and sand in the water body settle in the mud and sand settling area (12), the water body after the sand is removed enters the sludge concentration area (13), and the water body after the sludge is concentrated enters the sedimentation area (11).

2. The self-circulating muddy water rapid purification device according to claim 1 is characterized in that: The second annular member (3) is of a cone-shaped structure as a whole, so that after the water enters the sedimentation area (11), the sludge in the water can slide along the inner wall of the third annular member (8) to the bottom of the sedimentation area (11); The third annular member (8) is of a cone-shaped structure as a whole, so that after the water enters the mud and sand settling area (12), the sand in the water can slide along the inner wall of the third annular member (8) to the bottom of the mud and sand settling area (12).

3. The self-circulating muddy water rapid purification device according to claim 2 is characterized in that: It also comprises a cyclone separation plate (4) arranged in the mud and sand settling area (12), one end of the cyclone separation plate (4) being connected to the outer side wall of the second annular member (3), and the other end of the cyclone separation plate (4) being connected to the inner side wall of the third annular member (8); The cyclone separation plate (4) extends along the circumference of the second annular member (3) for one circle, so that the cyclone separation plate (4), the second annular member (3) and the third annular member (8) form an annular cyclone separation chamber (41); A sand sliding gap (42) is provided between the cyclone separation plate (4) and the third annular member (8), and the sand sliding gap (42) serves as an outlet of the cyclone separation chamber (41); The inlet of the cyclone separation chamber (41) is connected to an external sewage source. After the external sewage enters the cyclone separation chamber (41), it enters the mud and sand settling area (12) through the sand sliding seam (42).

4. The self-circulating muddy water rapid purification device according to claim 3 is characterized in that: The invention also comprises a cyclone guide plate (43) arranged in the cyclone separation chamber (41); a guide area (44) is formed between the cyclone guide plate (43) and the cyclone separation chamber (41); the guide area (44) is connected to the cyclone separation chamber (41); an external sewage source is connected to the guide area (44); the external sewage first enters the guide area (44) and then enters the cyclone separation chamber (41).

5. The self-circulating muddy water rapid purification device according to claim 4 is characterized in that: It also includes a first water inlet pipe (5), one end of which is connected to the mud and sand settling area (12), and the other end of which is connected to the sludge concentration area (13).

6. The self-circulating muddy water rapid purification device according to claim 1 is characterized in that: It also comprises a sand discharge pipe (7), one end of which is connected to the bottom of the mud and sand settling area (12), and the other end of which extends to the outside of the main body (1).

7. The self-circulating muddy water rapid purification device according to claim 1 is characterized in that: It also comprises a mud discharge pipe (9), one end of which extends into the bottom of the sedimentation area (11), and the other end of which extends to the outside of the main body (1).

8. The self-circulating muddy water rapid purification device according to claim 5 is characterized in that: It also includes a central tube (10), a water inlet ejector (101) and a throat (102); The central tube (10) is arranged concentrically with the main body (1) in the main body (1), and the central tube (10) is located in the sludge concentration zone (13). The area between the central tube (10) and the first annular member (2) forms a sludge maturation buffer zone (14), and the outlet of the sludge maturation buffer zone (14) is connected to the inlet of the sedimentation zone (11); The throat pipe (102) is arranged concentrically with the central tube (10) in the central tube (10), the area between the throat pipe (102) and the central tube (10) forms a sludge reaction zone (15), and the outlet of the sludge reaction zone (15) is connected to the inlet of the sludge maturation buffer zone (14); The inlet of the water inlet ejector (101) is connected to the first water inlet pipe (5), and the outlet of the water inlet ejector (101) extends into the throat pipe (102); The water body is accelerated by the water inlet ejector (101) and enters the throat pipe (102). The water body rises along the throat pipe (102) and is released to the sludge reaction zone (15) at the top of the throat pipe (102). Thereafter, the water body enters the sludge maturation buffer zone (14), and finally, the water body enters the sedimentation zone (11).

9. The self-circulating muddy water rapid purification device according to claim 8 is characterized in that: It also includes a baffle channel (103) disposed between the sludge reaction zone (15) and the sludge maturation buffer zone (14); The outlet of the sludge reaction zone (15) is connected to the inlet of the baffle channel (103), and the outlet of the baffle channel (103) is divided into a first branch and a second branch. The water along the first branch flows back into the throat (102), and the water along the second branch flows into the sludge maturation buffer zone (14); It also includes a reflux channel, one end of which is connected to the sludge maturation buffer zone (14), and the other end of which is connected to the sludge reaction zone (15); The water entering the sludge maturation buffer zone (14) along the second branch is divided into a third branch and a fourth branch. The water along the third branch enters the sedimentation zone (11), and the water along the fourth branch enters the throat (102) through the reflux channel.

10. The self-circulating muddy water rapid purification device according to claim 1 is characterized in that: An oblique tube separation device (104) and a water outlet trough (105) are provided in the sedimentation zone (11), and the oblique tube separation device (104) is located upstream of the water outlet trough (105); The water in the sedimentation area (11) enters the water outlet trough (105) after sedimentation and separation in the inclined tube separation device (104), and then is discharged from the main body (1) through the water outlet trough (105).

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