CN216571681U

CN216571681U - Precipitation device

Info

Publication number: CN216571681U
Application number: CN202122695955.1U
Authority: CN
Inventors: 员健; 刘远宏; 向贵洪; 胡扬; 雷细平; 颜勇志; 刘光石
Original assignee: Hunan Zihong Ecological Technology Co ltd
Current assignee: Hunan Zihong Ecological Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-24
Anticipated expiration: 2031-11-05

Abstract

The embodiment of the application discloses sediment device includes: the sedimentation tank is provided with a water inlet and a water outlet on two sides along the length direction of the sedimentation tank respectively; the filtering frame body is arranged in the sedimentation tank along the length direction of the sedimentation tank and comprises baffle plates at two ends, the two baffle plates are respectively opposite to the water inlet and the water outlet, at least one fixing hole is formed in each baffle plate, and a water passing channel is formed between the two corresponding fixing holes of the baffle plates at the two ends; and the cleaning assembly comprises a water spraying port, and the water spraying port can spray impact water flow flowing along the length direction of the sedimentation tank to the water passing channel. The utility model provides a sediment device can wash the mud on horizontal sedimentation pipe surface.

Description

Precipitation device

Technical Field

The embodiment of the application relates to deposit the structure, especially relates to a sediment device.

Background

The sedimentation tank is relatively darker because the degree of depth of cell body, and consequently the time of the interact that the sedimentation mud in the sewage produced with sewage body before falling into the cell body bottom is relatively more than lasting, can make sedimentation mud mix into sewage body again by sewage body's excessive impact before subsiding to the cell body bottom like this to lead to the sedimentation efficiency of the sedimentation mud in the sewage low.

For better sedimentation effect, the novel horizontal sedimentation module is adopted to replace the original inclined tube sedimentation on the market, and the sedimentation effect is good, the size is small, the water outlet is stable, and the like. But because the equipment runs for a long time, the water quality is complicated, and the like, the surface of the horizontal sedimentation pipe can settle sludge and is not easy to slide, so that the use time of the sedimentation device is short, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application aims to solve the problem of improving the sludge on the surface of a horizontal sedimentation pipe by providing the sedimentation device.

The embodiment of the application is realized by the following technical scheme:

a precipitation device, comprising: the sedimentation tank is provided with a water inlet and a water outlet at two sides along the length direction of the sedimentation tank respectively; the filtering frame body is arranged in the sedimentation tank along the length direction of the sedimentation tank and comprises baffle plates at two ends, the two baffle plates are respectively opposite to the water inlet and the water outlet, at least one fixing hole is formed in each baffle plate, and a water passing channel is formed between the two corresponding fixing holes of the baffle plates at the two ends; and the cleaning assembly comprises a water spraying port, and the water spraying port can spray impact water flow flowing along the length direction of the sedimentation tank to the water passing channel.

Further, the cleaning assembly comprises a cleaning hard pipe; the cleaning hard pipe extends along the vertical direction and is positioned between the water inlet and the baffle, and the water spray nozzle is arranged on the cleaning hard pipe.

Further, the cleaning assembly comprises a water pump and a water source, and the water pump is communicated with the water source and pumps clean water to the cleaning hard pipe.

Furthermore, the V-shaped settling tubes are erected on the fixing holes and penetrate through the baffle plates at two ends of the filtering frame body along the length direction of the settling tank; in each water passing channel, a plurality of V-shaped settling tubes are stacked, the openings of the V-shaped settling tubes face downwards, and the water passing channel is divided into V-shaped sub-channels by the adjacent V-shaped settling tubes; a sludge discharge port is formed in a gap between two side edges of two adjacent V-shaped settling pipes;

the cleaning assembly comprises a plurality of water spraying ports, the water spraying ports are arranged on one side, facing the sub-channel, of the cleaning hard pipe, and the plurality of water spraying ports correspond to the sub-channel one to one.

Further, wash the subassembly and include the hose, the both ends of hose are connected respectively the water pump with wash the hard tube.

Further, the cleaning assembly comprises a fixing frame arranged on the outer side of the sedimentation tank and a displacement cylinder fixedly connected with the fixing frame, the displacement cylinder has a first state and a second state, and the cleaning hard pipe is connected with the displacement cylinder to realize displacement along the vertical direction; the displacement cylinder is in a first state, a piston rod of the displacement cylinder extends out, the cleaning hard pipe extends downwards, and the plurality of water spraying ports correspond to the sub-channels one by one; the displacement cylinder is in a second state, a piston rod of the displacement cylinder retracts, the cleaning hard pipe retracts upwards, and the water spraying opening is far away from the area corresponding to the sub-channel.

Furthermore, the cleaning assembly comprises a cam mechanism, and the displacement cylinder is connected with the fixed frame through the cam mechanism; the displacement cylinder is in a first state, a piston rod of the displacement cylinder extends out, and the cam mechanism can drive the displacement cylinder to fluctuate up and down along the vertical direction.

Further, cam mechanism includes cam, head rod, second connecting rod, third connecting rod, driving motor and uide bushing, the both ends of head rod respectively with cam and second connecting rod are articulated, the both ends of third connecting rod respectively with displacement cylinder and second connecting rod are articulated, the third connecting rod cover is established in the uide bushing, driving motor drive the cam rotates.

Further, the cleaning assembly comprises a water inlet pipe and a filter, one end of the water inlet pipe is communicated with the water pump, the other end of the water inlet pipe is connected with the water source, and the filter is arranged at the other end of the water inlet pipe.

Further, the edge gaps of the openings of two adjacent V-shaped settling tubes are arranged to form sludge discharge ports on two sides of the sub-channel respectively.

The beneficial effects are that:

compared with the prior art, the sediment device of this application embodiment through setting up clear water subassembly, and clear water subassembly includes the water jet, and the water jet can be to the water channel blowout along the impact rivers that the length direction of sedimentation tank flows. When the sediment device operation a period, stubborn mud can be attached to V-arrangement sedimentation pipe surface gradually, and when stubborn mud piles up the certain degree, starts the washing subassembly, constantly strikes the stubborn mud that washs attached to on the V-arrangement sedimentation pipe from water jet spun high velocity of flow clear water, realizes subsiding the clearance of mud.

Drawings

The following detailed description of embodiments of the present application is provided in conjunction with the appended drawings, wherein:

fig. 1 is a front view of a horizontal sedimentation device according to an embodiment of the present application, in which a displacement cylinder is in a first state;

FIG. 2 is a front view of a horizontal sedimentation device in accordance with an embodiment of the present application, wherein the displacement cylinder is in a second state;

FIG. 3 is a schematic view of a cleaning assembly of an embodiment of the present application flushing settled sludge in a sub-channel;

FIG. 4 is a schematic structural diagram of a cam mechanism according to an embodiment of the present application;

FIG. 5 is a schematic view of the assembly of the filter frame and the V-shaped settling tube from a first perspective;

FIG. 6 is a schematic view of the assembly of the filter frame and the V-shaped settling tube from a second perspective;

FIG. 7 is a partial schematic view of portion A of FIG. 5;

fig. 8 is a partial schematic view of part B of fig. 6, wherein the upper sub-channel shows the effect after washing the settled sludge in the sub-channel by using the washing assembly, and the lower sub-channel shows the effect without washing.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the embodiments of the present application, the embodiments of the present application are described in detail below with reference to the drawings, and the description in this section is only exemplary and explanatory, and should not have any limiting effect on the scope of the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationship shown in fig. 1 or the orientation or positional relationship that a product of the embodiment of the present application is usually placed when in use, which are only used for convenience of describing the embodiment of the present application and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiment of the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 8, a settling apparatus includes: the sedimentation tank 1, along the length direction of sedimentation tank 1 arrange filter frame body 2 and washing subassembly 7 in sedimentation tank 1.

Along the length direction of the sedimentation tank 1, a water inlet 13 and a water outlet 14 are respectively arranged on two sides of the sedimentation tank 1; the water inlet 13 is used for flowing in sewage and discharging from the water outlet 14 after the horizontal sedimentation device is sedimentated. It can be understood that the flow direction of the sewage into the horizontal sedimentation device as a whole coincides with the length direction of the sedimentation tank 1.

The filtering frame body 2 comprises baffle plates 21 at two ends, the two baffle plates 21 respectively face the water inlet 13 and the water outlet 14, at least one fixing hole 22 is formed on the baffle plate 21, and a water passing channel 23 is formed between the two corresponding fixing holes 22 of the baffle plates 21 at the two ends. After entering the sedimentation tank 1, the sewage flows through the water passage 23, and the width of the baffle 21 should be equal to that of the sedimentation tank 1, so as to prevent the sewage from bypassing the filter frame 2 and directly flowing from the water inlet 13 to the water outlet 14.

Along the length direction of the sedimentation tank 1, the V-shaped sedimentation pipe 3 is erected on the fixed hole 22 and penetrates through the baffles 21 at the two ends of the filtering frame body 2; in each water channel 23, the opening 31 of the V-shaped settling tube 3 faces downwards, the adjacent V-shaped settling tubes 3 jointly divide the water channel 23 into V-shaped sub-channels 231, and specifically, the opening 31 of the upper V-shaped settling tube 3 and the tip 32 of the lower V-shaped settling tube 3 jointly divide the water channel 23 into the V-shaped sub-channels 231; the stacking arrangement between the V-shaped settling tubes 3 can increase the surface load and improve the settling efficiency of solid particles, thereby increasing the contact area between sewage and the V-shaped settling tubes 3.

The sewage is divided into a plurality of strands after entering the sedimentation tank 1, each strand of sewage flows into one sub-channel 231, and in the process of flowing from the water inlet 13 to the water outlet 14, solid particles in the sewage are settled under the action of gravity, fall onto the tip 32 of the V-shaped sedimentation pipe 3 along the parabolic path, and fall downwards along the inclined plane of the tip 32 to the edges of two sides; the clearance of two adjacent V-arrangement sedimentation pipes 3 both sides edge forms mud discharging port 4, and solid particle breaks away from water channel 23 promptly after outflow mud discharging port 4, and the rivers of the region outside water channel 23 are in static relatively for solid particle can sink the bottom of sedimentation tank 1 in the action of gravity, makes the both sides row mud to V-arrangement sedimentation pipe 3 from this, ensures that each subchannel 231 all keeps efficient settlement efficiency.

The washing unit 7 includes water spray holes 711, and the water spray holes 711 can spray impact water flowing in the lengthwise direction of the sedimentation tank 1 toward the water passage 23. When the sedimentation device operates for a period of time, the stubborn sludge can be gradually attached to the surface of the V-shaped sedimentation pipe 3, when the stubborn sludge is accumulated to a certain degree, the cleaning assembly 7 is started, the high-flow-rate clear water sprayed from the water spray port 711 continuously impacts and cleans the stubborn sludge attached to the V-shaped sedimentation pipe 3, and the cleaned stubborn sludge enters the lower part of the sedimentation tank 1 along the sludge discharge port 4 and is discharged through the sewage discharge valve 121, so that the cleaning purpose is achieved. The cleaning assembly 7 may include a plurality of water spraying ports 711, and the plurality of water spraying ports 711 correspond to the sub-channels 231 one by one to obtain better cleaning effect.

The V-shaped settling tube 3 can be made of stainless steel and has a smooth surface. In addition, the surface of the V-shaped settling tube 3 can be provided with a lubricating coating to prevent the settled solid particles from accumulating.

In one embodiment, as shown in fig. 1-3, the cleaning assembly 7 includes a cleaning pipe 71, a water pump 73, and a water source 75. The cleaning hard pipe 71 extends in the vertical direction and is positioned between the water inlet 13 and the baffle 21, the water spray port 711 is arranged on the cleaning hard pipe 71, and the water pump 73 is communicated with the water source 75 and pumps clean water to the cleaning hard pipe 71; when the sedimentation device operates for a period of time, the stubborn sludge can be gradually attached to the surface of the V-shaped sedimentation pipe 3, and the stubborn sludge is accumulated to a certain degree, the cleaning assembly 7 is started, the water pump 73 is started, the clear water is pumped into the water pump 73 from the water source, and is sprayed out from the water spray port 711 after being shunted by the cleaning hard pipe 71 through pressurization to form high-flow-rate clear water; the high-flow-rate clean water continuously impacts and cleans the stubborn sludge attached to the V-shaped sedimentation pipe 3, the cleaned stubborn sludge enters the lower part of the sedimentation tank 1 along the sludge discharge port 4 and is discharged through the sewage discharge valve 121, and the purpose of cleaning is achieved.

The water spray holes 711 are disposed on the side of the cleaning pipe 71 facing the sub-channel 231, so that the high flow rate of clean water sprayed from the water spray holes 711 can directly impact on the sub-channel 231, thereby obtaining better cleaning effect.

In one embodiment, as shown in fig. 1 to 3, the cleaning assembly 7 includes a hose 72, a fixing frame 76 disposed outside the sedimentation tank 1, and a displacement cylinder 77 fixedly connected to the fixing frame 76. The two ends of the hose 72 are respectively connected with the water pump 73 and the cleaning hard pipe 71, the displacement cylinder 77 has a first state and a second state, and the cleaning hard pipe 71 is connected with the displacement cylinder 77 to realize displacement along the vertical direction;

wherein, the displacement cylinder 77 is in the first state, the piston rod 771 of the displacement cylinder 77 extends out, the cleaning hard tube 71 extends out downwards and reaches between the water inlet 13 and the baffle 21, and the plurality of water spray ports 711 correspond to the sub-channels 231 one by one; the water spray port 711 on the cleaning hard pipe 71 sprays out to form high-flow-rate clean water; the stubborn sludge attached to the V-shaped settling pipe 3 can be conveniently and continuously washed by impacting the clear water at a high flow speed.

When the displacement cylinder 77 is in the second state, the piston rod 771 of the displacement cylinder 77 retracts, the cleaning hard pipe 71 retracts upwards, and the water spray opening 711 is far away from the area corresponding to the sub-channel 231, so that the influence on the sedimentation of the sewage in the sedimentation tank 1 is avoided.

In one embodiment, as shown in fig. 1 to 4, the cleaning assembly 7 includes a cam mechanism 78, and the displacement cylinder 77 is connected to the fixing frame 76 through the cam mechanism 78; when the displacement cylinder 77 is in the first state, the piston rod 771 of the displacement cylinder 77 extends out, the cleaning hard tube 71 extends out downwards and reaches between the water inlet 13 and the baffle 21, and the plurality of water spraying ports 711 correspond to the sub-channels 231 one by one; the water spray port 711 on the cleaning hard pipe 71 sprays out to form high-flow-rate clean water; the method is convenient for continuously impacting and cleaning the stubborn sludge attached to the V-shaped settling pipe 3 by high-flow-rate clear water; when the washing, cam mechanism 78 can order about displacement cylinder 77 and fluctuate from top to bottom along vertical direction for the high velocity of flow clear water of impact on V-arrangement precipitation pipe 3 produces fluctuation from top to bottom, makes the clear water of high velocity of flow can be to the abluent more thoroughly of stubborn mud on the V-arrangement precipitation pipe 3.

In one embodiment, as shown in fig. 1 to 4, the cam mechanism 78 includes a cam 781, a first connection rod 782, a second connection rod 783, a third connection rod 786, a driving motor 784, and a guide sleeve 785, two ends of the first connection rod 782 are respectively hinged to the cam 781 and the second connection rod 783, two ends of the third connection rod 786 are respectively hinged to the displacement cylinder 77 and the second connection rod 783, the third connection rod 786 is sleeved in the guide sleeve 785, when the driving motor 784 drives the cam 781 to rotate, the first connecting rod 782 drives the second connecting rod 783 to rotate, so that the third connecting rod 786 rotates into a reciprocating motion in a vertical direction by the guide sleeve 785, thereby drive displacement cylinder 77 and fluctuate from top to bottom along vertical direction for the high velocity of flow clear water of impact on V-arrangement sedimentation pipe 3 produces fluctuation from top to bottom, makes the clear water of high velocity of flow can be to the abluent more thoroughly of the stubborn mud on the V-arrangement sedimentation pipe 3.

In one embodiment, as shown in fig. 1 to 8, the cleaning assembly 7 includes a water inlet pipe 74 and a filter 79, one end of the water inlet pipe 74 is connected to the water pump 73, the other end is connected to the water source 75, and the filter 79 is disposed at the other end of the water inlet pipe 74 to ensure water quality and prevent pollution during the process of cleaning the sedimentation tank 1.

In one embodiment, as shown in fig. 1 to 8, the edge gaps of the openings 31 of two adjacent V-shaped settling tubes 3 are arranged to form sludge discharge ports 4 on two sides of the sub-channel 231, so that settled solid particles can fall down on the V-shaped settling tubes 3 uniformly to two sides, and the single side of the V-shaped settling tube 3 is prevented from being blocked by the settled solid particles.

The fixing hole 22 and the V-shaped sedimentation tube 3 can be connected by bolts, clamping welding and the like.

In one embodiment, as shown in fig. 1 to 8, the fixing hole 22 is formed with a plurality of supporting legs 221 from top to bottom, and the two side edges of the V-shaped settling tube 3 are formed with positioning notches 33 matching with the supporting legs 221, so that the V-shaped settling tube 3 can be conveniently erected on the fixing hole 22 and can be taken down for maintenance at any time.

In one embodiment, as shown in fig. 1 to 8, the top end of the fixing hole 22 is V-shaped to match with the tip 32 of the V-shaped sedimentation tube 3, so as to avoid a gap between the fixing hole and the V-shaped sedimentation tube, so that all sewage is required to flow through the plurality of sub-channels 231 after entering the sedimentation tank 1, thereby improving the sedimentation quality of sewage.

In one embodiment, as shown in fig. 1 to 8, the horizontal sedimentation device includes a baffle 5 having a water outlet (not shown), the baffle 5 is disposed between the water outlet 14 and the water channel 23, the sewage treated by the plurality of V-shaped sedimentation pipes 3 on the filtering frame 2 meets the baffle 5, and the water flow mixed with solid particles is prevented from being directly discharged from the water outlet 14 by setting a height difference. The water outlet is usually arranged in the middle of the baffle 5; so that the solid particles contained in the bottom and top layers of the water stream settle further.

In one embodiment, as shown in fig. 1, the horizontal sedimentation device includes a water distribution pipe 6, one end of the water distribution pipe 6 is communicated with the water inlet 13, a plurality of water outlet sub-ports 61 are formed at the other end of the water distribution pipe 6 from top to bottom, and the water distribution pipe 6 divides the sewage into a plurality of strands in advance to prevent the large strands of sewage from generating turbulence when entering the plurality of V-shaped sedimentation pipes 3 on the filtering frame 2, which affects the sedimentation effect of the solid particles.

In one embodiment, as shown in fig. 1, the sedimentation tank 1 includes an upper water passing area 11 and a lower sedimentation area 12, and the water inlet 13 and the water outlet 14 are respectively arranged on the wall surfaces at two sides of the water passing area 11; the filtering frame body 2 is arranged in the water passing area 11, the sedimentation process of the fixed particles occurs in the water passing area 11, and the settled solid particles discharged from the sub-channel 231 through the sludge discharge port 4 can be collected from the water passing area 11 to the sedimentation area 12 and then are treated in a centralized manner.

The above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the same, and any modification or equivalent replacement without departing from the spirit and scope of the embodiments of the present application should be covered within the technical solutions of the present application.

Claims

1. A precipitation device, comprising:

the sedimentation tank (1) is provided with a water inlet (13) and a water outlet (14) along the length direction of the sedimentation tank (1) on two sides of the sedimentation tank (1) respectively;

the filter frame body (2) is arranged in the sedimentation tank (1) along the length direction of the sedimentation tank (1), the filter frame body (2) comprises baffle plates (21) at two ends, the two baffle plates (21) are respectively opposite to the water inlet (13) and the water outlet (14), at least one fixing hole (22) is formed in each baffle plate (21), and a water passing channel (23) is formed between the two corresponding fixing holes (22) of the baffle plates (21) at the two ends;

and the cleaning assembly (7) comprises a water spraying opening (711), and the water spraying opening (711) can spray impact water flow flowing along the length direction of the sedimentation tank (1) to the water passing channel (23).

2. A precipitation apparatus according to claim 1, wherein: the cleaning assembly (7) comprises a cleaning hard pipe (71); the cleaning hard pipe (71) extends along the vertical direction and is positioned between the water inlet (13) and the baffle plate (21), and the water spray opening (711) is arranged on the cleaning hard pipe (71).

3. A precipitation device according to claim 2, wherein: the cleaning assembly (7) comprises a water pump (73) and a water source (75), wherein the water pump (73) is communicated with the water source (75) and pumps clean water to the cleaning hard pipe (71).

4. A precipitation apparatus according to claim 3, wherein: the V-shaped sedimentation pipes (3) are erected on the fixing holes (22) along the length direction of the sedimentation tank (1) and penetrate through the baffle plates (21) at the two ends of the filtering frame body (2);

in each water passing channel (23), a plurality of V-shaped settling tubes (3) are stacked, the openings (31) of the V-shaped settling tubes (3) face downwards, and the water passing channel (23) is divided into V-shaped sub-channels (231) by the adjacent V-shaped settling tubes (3); a sludge discharge port (4) is formed in a gap between two side edges of two adjacent V-shaped settling tubes (3);

the cleaning assembly (7) comprises a plurality of water spraying ports (711), the water spraying ports (711) are arranged on one side, facing the sub-channel (231), of the cleaning hard pipe (71), and the plurality of water spraying ports (711) correspond to the sub-channel (231) in a one-to-one mode.

5. A precipitation apparatus according to claim 4, wherein: the cleaning assembly (7) comprises a hose (72), and two ends of the hose (72) are respectively connected with the water pump (73) and the cleaning hard pipe (71).

6. A precipitation apparatus according to claim 5, wherein: the cleaning assembly (7) comprises a fixed frame (76) arranged on the outer side of the sedimentation tank (1) and a displacement cylinder (77) fixedly connected with the fixed frame (76), the displacement cylinder (77) has a first state and a second state, and the cleaning hard pipe (71) is connected with the displacement cylinder (77) to realize displacement along the vertical direction;

the displacement cylinder (77) is in a first state, a piston rod (771) of the displacement cylinder (77) extends out, and the cleaning hard pipe (71) extends out downwards;

the displacement cylinder (77) is in a second state, a piston rod (771) of the displacement cylinder (77) retracts, the cleaning hard pipe (71) retracts upwards, and the water spray opening (711) is far away from the area corresponding to the sub-channel (231).

7. A precipitation apparatus according to claim 6, wherein: the cleaning assembly (7) comprises a cam mechanism (78), and the displacement cylinder (77) is connected with the fixed frame (76) through the cam mechanism (78);

the displacement cylinder (77) is in a first state, and the cam mechanism (78) can drive the displacement cylinder (77) to fluctuate up and down along the vertical direction.

8. A precipitation apparatus according to claim 7, wherein: cam mechanism (78) include cam (781), head rod (782), second connecting rod (783), third connecting rod (786), driving motor (784) and uide bushing (785), the both ends of head rod (782) respectively with cam (781) and second connecting rod (783) are articulated, the both ends of third connecting rod (786) respectively with displacement cylinder (77) and second connecting rod (783) are articulated, third connecting rod (786) cover is established in uide bushing (785), driving motor (784) drive cam (781) rotate.

9. A precipitation device according to any one of claims 3 to 8, wherein: wash subassembly (7) including inlet tube (74) and filter (79), the one end intercommunication of inlet tube (74) water pump (73), the other end is connected water source (75), filter (79) set up the other end of inlet tube (74).

10. A precipitation device according to any one of claims 4 to 8, wherein: the edge gaps of the openings (31) of two adjacent V-shaped settling tubes (3) are arranged to form sludge discharge openings (4) on two sides of the sub-channel (231) respectively.