CN218454117U - Kitchen waste water biomass separation module - Google Patents

Abstract

The utility model discloses a surplus waste water living beings separation module in kitchen belongs to refuse treatment technical field. The separation module includes: the separation shell, the adverse current precipitation board and overflow spare, set up the cocurrent precipitation chamber with external intercommunication in the separation shell, the mud chamber with cocurrent precipitation chamber intercommunication, the adverse current precipitation chamber with mud chamber intercommunication, the exhalant canal with adverse current precipitation chamber intercommunication, and the row's mud passageway with mud chamber intercommunication, the adverse current precipitation board sets up the adverse current precipitation passageway that forms the slant and extend in the adverse current precipitation intracavity at predetermined distance intervals in the adverse current precipitation chamber, the overflow spare sets up in the adverse current precipitation board top, it sets up the overflow hole with the intercommunication of adverse current precipitation chamber, and set up in overflow spare top and the overflow launder that communicates with the overflow hole, the overflow launder communicates with exhalant canal. The utility model solves the problems of low sludge retention efficiency, high cost and high membrane process cost of aerobic process of the anaerobic reactor in the prior art.

Description

Kitchen waste water biomass separation module

Technical Field

The utility model belongs to the technical field of refuse treatment, specifically kitchen remains waste water living beings separation module.

Background

Whether the biological reaction generates methane anaerobically or aerobically, a large amount of gas is generated, and the sludge wrapping the biological thallus flows out of the biological reactor, so that the reactor is ineffective because no organism exists.

The anaerobic process in the prior art adopts the most original gravity sedimentation at present, because no effective precipitator can play a good separation effect for the complex wastewater, the sludge interception efficiency of the method is low, so that the sludge can be precipitated only by requiring the anaerobic reactor to have a very large surface area to reach a high surface load, and the aerobic process section adopts the membrane process with the highest cost at present to intercept the aerobic sludge, so the sludge interception scheme of the existing anaerobic and aerobic processes mostly has the problem of high cost caused by low interception efficiency.

Disclosure of Invention

Utility model purpose: the kitchen waste water biomass separation module can improve sludge retention efficiency.

The technical scheme of the utility model is that: kitchen remains waste water living beings separation module includes: the separation shell is provided with a cocurrent sedimentation cavity with the top end communicated with the outside, a sludge cavity with the top end communicated with the bottom end of the cocurrent sedimentation cavity, a countercurrent sedimentation cavity with the bottom end communicated with the top end of the sludge cavity, a water outlet channel communicated with the top end of the countercurrent sedimentation cavity, and a sludge discharge channel communicated with the sludge cavity.

And the plurality of countercurrent sedimentation plates are arranged in the countercurrent sedimentation cavity at intervals of a preset distance, and an obliquely extending countercurrent sedimentation channel is formed in the countercurrent sedimentation cavity.

And the overflow piece is arranged above the countercurrent sedimentation plate, is provided with a plurality of overflow holes communicated with the countercurrent sedimentation cavity and an overflow groove communicated with the overflow holes, and is communicated with the water outlet channel.

The overflow hole of the overflow piece is higher than the top end of the same-flow sedimentation cavity.

When waste water gets into in the separation casing, waste water in the cocurrent sedimentation intracavity flows to mud chamber direction, the waste water separation of mud intracavity is to the mud that row mud passageway direction flows to and to the primary separation liquid that flows in the sedimentation chamber direction against the current, the primary separation liquid separation of sedimentation intracavity against the current goes out the mud that flows to mud chamber direction, and to the secondary separation liquid that goes out the flowing of water cushion chamber.

In a further embodiment, a water outlet buffer chamber is further arranged in the separation shell.

One end of the water outlet buffer cavity is communicated with the overflow groove of the overflow piece, the other end of the water outlet buffer cavity is communicated with the water outlet channel and is used for containing a predetermined amount of secondary separation liquid, the predetermined amount of secondary separation liquid is contained in the water outlet buffer cavity, impact resistance load can be improved, and the retention time of the secondary separation liquid is prolonged.

In a further embodiment, the kitchen waste water biomass separation module further comprises: a plurality of is with flowing sediment board, its interval predetermined distance set up in with flowing sediment intracavity forms with flowing sediment passageway, through set up with flowing sediment board in with flowing sediment intracavity, can increase the area of contact of waste water in with flowing sediment intracavity, improves the effect of same-row flow separation.

In a further embodiment, the kitchen waste water biomass separation module further comprises: the flow baffle is arranged on the upper part of the communicated part of the co-current sedimentation cavity and the sludge cavity, so that the lower part of the co-current sedimentation cavity is communicated with the sludge cavity, the lower part of the co-current sedimentation cavity is communicated with the sludge cavity only through the flow baffle, the sewage flowing downwards on the upper part of the co-current sedimentation cavity can be prevented from being collided with primary separation liquid, and the primary separation efficiency is improved.

In a further embodiment, the kitchen waste water biomass separation module further comprises: and the side surface of the overflow plate is provided with a vertical waist-shaped hole for adjusting the communication height of the overflow hole and the countercurrent sedimentation cavity.

And the adjusting screw penetrates through the waist-shaped hole of the overflow plate to be connected with the overflow piece, and the height of the separation module can be adjusted according to actual requirements through the height adjustment of the overflow piece.

In a further embodiment, the bottom end of the sludge cavity close to the co-current sedimentation cavity extends towards the lower part of the communicated part of the sludge cavity and the counter-current sedimentation cavity along an oblique direction, so that sewage can flow to the lower part of the counter-current sedimentation cavity, more primary separation liquid can rise into the counter-current sedimentation cavity, and the secondary separation efficiency is improved.

In a further embodiment, the kitchen waste water biomass separation module further comprises: the back flushing pipe is accommodated at the bottom end of the sludge cavity, the outlet end of the back flushing pipe faces the co-current sedimentation cavity from the bottom end of the sludge cavity, and the inlet end of the back flushing pipe is externally connected with a pressure device and used for outputting back flushing power to the co-current sedimentation cavity from the bottom end of the sludge cavity.

The beneficial effects of the utility model are that: compromise through concurrent sedimentation chamber and adverse current sedimentation chamber with the advantage between the separation scheme of the STREAMING and the reverse separation scheme, reached the effect of dual separation, have more advantage to kitchen waste water complexity, can get rid of in a large number turbid impurity particle, suspension colloid thing etc. and the clearance reaches 95%.

And the countercurrent sedimentation channel extends along the oblique direction, so that the sedimentation area of the equipment is increased, the hydraulic radius is reduced, the Reynolds number Re can be greatly reduced under the same flow velocity, the turbulent motion of water is reduced, the sedimentation effect is increased, the sedimentation distance of particles in water is shortened due to the oblique extension of the countercurrent sedimentation channel, the sedimentation time is shortened, and the sedimentation efficiency is greatly improved.

Can increase the sewage storage volume between concurrent sedimentation chamber and the adverse current sedimentation chamber through the mud chamber, and then reduce the impact of the coming water of concurrent sedimentation chamber to the sewage that is carrying out a separation, improve a separation efficiency of sewage.

The overflow piece can further intercept the sludge wrapped by the secondary separation liquid.

Theoretically, the number of the improvement of the efficiency of the separation module is equal to the multiple of the total projection area of the inclined plate increased by the area of the original pool, and the surface area of the equipment provided with the separation module is smaller in order to achieve the same sedimentation area, so that the separation module has the advantage of small occupied area when used in an anaerobic process, achieves the effects of reducing the surface area of an anaerobic reactor and reducing the sludge interception cost of the anaerobic reactor, and can replace a membrane process with high cost to greatly reduce the cost of the aerobic process when used in the aerobic process, so the sludge interception efficiency is improved, the sludge interception cost is reduced, and the problems of low sludge interception efficiency, high cost and high membrane process cost of the aerobic process of the anaerobic reactor in the prior art are solved.

Drawings

Fig. 1 is a schematic front sectional view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is an axis measuring view of the present invention.

The reference symbols shown in the figures are: 1. separating the shell; 2. a counter-current settling plate; 3. an overflow member; 4. a co-current settling plate; 5. a flow baffle plate; 6. back flushing the pipe; 7. an overflow plate; 11. a co-current settling chamber; 12. a sludge chamber; 13. a counter-current settling chamber; 14. a water outlet channel; 15. a sludge discharge channel; 16. a water outlet buffer cavity; 31. an overflow aperture; 32. an overflow trough.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

The application discloses kitchen waste water biomass separation module that can improve efficiency is held back to mud.

In the embodiment shown in fig. 1, the kitchen waste water biomass separation module comprises: a separation shell 1, an overflow 3 and a number of counter-current settling plates 2.

In this embodiment, the separation housing 1 may be formed integrally, or may be formed by welding or screwing, and functions to surround each cavity for separating waste water.

The separation shell 1 is internally provided with a cocurrent sedimentation cavity 11, a sludge cavity 12, a countercurrent sedimentation cavity 13, a water outlet channel 14 and a sludge discharge channel 15.

The top end of the cocurrent sedimentation cavity 11 is communicated with the outside, so that the cocurrent sedimentation cavity 11 extends to the sludge cavity 12 along the vertical direction, and the wastewater close to the cocurrent sedimentation cavity 11 in the sludge cavity 12 is conveyed to the lower part of the countercurrent sedimentation cavity 13 only by depending on the external pressure. The co-current sedimentation chamber 11 may extend obliquely below the portion where the sludge chamber 12 and the counter-current sedimentation chamber 13 are connected. Or the bottom end of the sludge cavity 12 close to the cocurrent sedimentation cavity 11 extends to the lower part of the connecting part of the sludge cavity 12 and the countercurrent sedimentation cavity 13 along the oblique direction, or the sludge cavity 12 and the countercurrent sedimentation cavity 13 can be used simultaneously.

In this embodiment, the wastewater in the co-current sedimentation chamber 11 flows from the top end to the bottom end, and the flowing direction is overlapped with the gravity direction, so as to achieve the same effect as that of the co-current separation module.

The top and the 11 bottom intercommunications of concurrent sedimentation chamber in mud chamber 12 can increase the sewage storage volume between concurrent sedimentation chamber 11 and the adverse current sedimentation chamber 13 through mud chamber 12, and then has reduced the impact of the water that comes of concurrent sedimentation chamber 11 to the sewage that is carrying out a separation, has improved a separation efficiency of sewage.

The bottom end of the countercurrent sedimentation cavity 13 is communicated with the top end of the sludge cavity 12, primary separation liquid in the countercurrent sedimentation cavity 13 flows from the bottom end to the top end, the flowing direction is opposite to the gravity direction, and the effect same as that of the countercurrent separation module is achieved.

The water outlet channel 14 is communicated with the top end of the countercurrent sedimentation chamber 13, in fig. 1, the reference number indicates an extension pipe of the separation housing 1, the water outlet channel 14 is opened in the extension pipe, and in the present embodiment, the other end of the water outlet channel 14 is communicated with an external preset position for discharging the secondary separation liquid out of the separation module.

The sludge discharge channel 15 is communicated with the sludge cavity 12 and an external preset position and is used for discharging sludge in the sludge cavity 12 out of the separation module to a wastewater treatment container or the external preset position to realize sludge preservation.

The countercurrent sedimentation plates 2 are arranged in the countercurrent sedimentation cavity 13 at preset intervals, an obliquely extending countercurrent sedimentation channel is formed in the countercurrent sedimentation cavity 13 and extends along the oblique direction, so that the sedimentation area of the equipment is increased, the hydraulic radius is reduced, the Reynolds number Re can be greatly reduced under the same flow velocity, the turbulent motion of water is reduced, the sedimentation effect is improved, the countercurrent sedimentation channel extends obliquely, the sedimentation distance of particles in water is shortened, the sedimentation time is shortened, and the sedimentation efficiency is greatly improved.

In this embodiment, the counter flow settling plates 2 are connected to the inner wall of the separation shell 1, the number of the counter flow settling plates 2 is at least two, a partial inner wall of the separation shell 1 may be parallel to the counter flow settling plates 2, and the counter flow settling plates 2 are spaced apart from the partial inner wall of the separation shell 1 by a predetermined distance.

In this embodiment, the different countercurrent sedimentation channels may be arranged in parallel or in a V-shape.

In this embodiment, the oblique direction extension of the countercurrent sedimentation channel means that a predetermined included angle exists between the extension direction of the countercurrent sedimentation channel and a gravity line, wherein the gravity line may be a normal gravity line of the sewage flowing under the gravity of the earth, or a gravity line of the sewage flowing under other gravity in a weightless state.

The overflow member 3 is disposed above the counter-flow settling plate 2, and is provided with a plurality of overflow holes 31 communicated with the counter-flow settling chamber 13, and an overflow groove 32 disposed above the overflow member 3 and communicated with the overflow holes 31, the overflow groove 32 is communicated with the water outlet channel 14, in the embodiment shown in fig. 1, 2 and 3, the overflow member 3 is a C-shaped steel beam disposed above the counter-flow settling chamber 13.

The overflow hole 31 of the overflow member 3 is higher than the top end of the concurrent sedimentation chamber 11, and the fact that the overflow hole 31 is higher than the top end of the concurrent sedimentation chamber 11 in this embodiment means that the absolute height of the aperture range of the overflow hole 31 is greater than or equal to the absolute height of the top end of the concurrent sedimentation chamber 11.

In the present embodiment, the overflow member 3 is connected to the separation casing 1, and the overflow hole 31 may be provided on a side surface of the overflow member 3 or on a bottom surface of the overflow member 3.

The absolute height of the overflow holes 31 in the present embodiment means that the aperture range of the overflow holes 31 is located at an altitude greater than or equal to the absolute height of the top end of the isopipe settling chamber 11.

When the wastewater enters the separation shell 1, the wastewater in the co-current sedimentation chamber 11 flows towards the sludge chamber 12, the wastewater in the sludge chamber 12 separates sludge flowing towards the sludge discharge channel 15 and primary separation liquid flowing towards the counter-current sedimentation chamber 13, the primary separation liquid in the counter-current sedimentation chamber 13 separates sludge flowing towards the sludge chamber 12 and secondary separation liquid flowing towards the effluent buffer chamber 16, in this embodiment, the co-current sedimentation chamber 11 can extend towards the sludge chamber 12 along the vertical direction, the wastewater in the sludge chamber 12 close to the co-current sedimentation chamber 11 is conveyed to the lower part of the counter-current sedimentation chamber 13 only by means of external pressure, and the primary separation liquid in the sludge chamber 12 flows from the bottom end to the top end of the counter-current sedimentation chamber 13.

The working principle is as follows: the kitchen waste water biomass separation module is accommodated in a waste water treatment container, so that the top end of a separation shell 1 is partially exposed out of the waste water liquid surface of the waste water treatment container, further, the partial part of an overflow piece 3 is exposed out of the liquid surface of secondary separation liquid in the separation shell 1, the liquid surface in the waste water treatment container is positioned in the height range of an overflow hole 31 of the overflow piece 3 or is lower than the overflow hole 31, when waste water of a front-end process enters the waste water treatment container, the liquid surface in the waste water treatment container is higher than the overflow hole 31 or is positioned in the height range of the overflow hole 31, so that the waste water in the waste water treatment container is pressed to enter a concurrent sedimentation chamber 11 from the top end of the concurrent sedimentation chamber 11, the waste water in the concurrent sedimentation chamber 11 flows towards a sludge chamber 12, and at the moment, the waste water is in a flow separation state in the concurrent sedimentation chamber 11, then the waste water in the sludge chamber 12 separates the sludge flowing towards the sludge discharge channel 15 and the primary separation liquid flowing towards the countercurrent sedimentation chamber 13, then the primary separation liquid is in a reverse flow separation state in the countercurrent sedimentation chamber 13, so that the primary separation liquid in the countercurrent sedimentation chamber 13 separates the sludge flowing towards the sludge chamber 12 and the secondary separation liquid flowing towards the effluent buffer chamber 16, the residence time of the secondary separation liquid is prolonged by the effluent buffer chamber, the variation of the quantity of water quality is reduced, the water quality is improved, finally the secondary separation liquid is discharged from the effluent channel 14 communicated with the effluent buffer chamber 16, the sludge in the sludge chamber 12 is discharged from the sludge discharge channel 15 communicated with the sludge chamber 12, and when the sludge chamber 12 is communicated with a waste water treatment container, the effect that the sludge is retained in the waste water treatment container is realized.

Compromise through with flowing in same direction sedimentation chamber 11 and adverse current sedimentation chamber 13 and had both advantages with the separation scheme of the STREAMING and the reverse separation scheme of reversal, reached the effect of dual separation, had more the advantage to kitchen waste water complexity, can get rid of in a large number turbid impurity particle, suspension colloid thing etc. and the clearance reaches 95%.

Theoretically, the number of times of efficiency improvement of the separation module is equal to the multiple of the total projection area of the inclined plate increased by the area of the original tank, and the surface area of equipment provided with the separation module is smaller in order to achieve the same sedimentation area, so that the separation module has the advantage of small occupied area when used in an anaerobic process, achieves the effects of reducing the surface area of an anaerobic reactor and reducing the sludge interception cost of the anaerobic reactor, and can replace a membrane process with high cost to greatly reduce the cost of the aerobic process when used in the aerobic process, so that the sludge interception efficiency is improved, and the sludge interception cost is reduced.

In a further embodiment, a water outlet buffer chamber 16 is also provided in the separation housing 1.

One end of the water outlet buffer cavity 16 is communicated with the overflow groove 32 of the overflow piece 3, and the other end is communicated with the water outlet channel 14, and the water outlet buffer cavity is used for accommodating a preset amount of secondary separation liquid.

The outlet buffer chamber 16 is used for accommodating the secondary separation liquid with a preset amount, so that the impact load resistance can be improved, the retention time of the secondary separation liquid is prolonged, the problems that the retention time of water in a water outlet area is short, and the quality of outlet water is poor due to the fact that the operation cannot be adjusted in time when the change of the quality and the quantity of water is large are solved, and the reaction time for adjusting the operation when the change of the quality and the quantity of water is large is prolonged.

In a further embodiment as shown in fig. 1, the kitchen waste water biomass separation module further comprises: a number of co-current settling plates 4.

The co-current sedimentation plates 4 are arranged in the co-current sedimentation cavity 11 at intervals of a preset distance to form a co-current sedimentation channel, in the embodiment, the co-current sedimentation plates 4 are connected with the inner wall of the separation shell 1, and the number of the co-current sedimentation plates 4 is at least two.

The concurrent precipitation plate 4 may be disposed in parallel with the concurrent precipitation plate 4 in a front view, or may be disposed vertically with the concurrent precipitation plate 4 in a top view.

Through set up with flowing in the same current precipitation plate 4 in the same current precipitation chamber 11, can increase the area of contact of waste water in same current precipitation chamber 11, improve the effect of the same traffic flow separation.

In a further embodiment as shown in fig. 1, the kitchen waste water biomass separation module further comprises: a baffle plate 5.

The flow baffle plate 5 is arranged at the upper part of the communicated part of the concurrent sedimentation cavity 11 and the sludge cavity 12, so that the lower part of the concurrent sedimentation cavity 11 is communicated with the sludge cavity 12.

In the present embodiment, the baffle 5 is connected to the inner wall of the separation housing 1.

The baffle plate 5 only enables the lower part of the co-current sedimentation cavity 11 to be communicated with the sludge cavity 12, so that the sewage flowing downwards from the upper part of the co-current sedimentation cavity 11 can be prevented from being collided with the primary separation liquid, and the primary separation efficiency is improved.

In a further embodiment as shown in fig. 1, 2 and 3, the kitchen waste water biomass separation module further comprises: overflow plates 7 and adjusting screws.

As shown in fig. 1 and 3, the side surface of the overflow plate 7 is provided with a vertical kidney-shaped hole for adjusting the communication height between the overflow hole 31 and the countercurrent sedimentation chamber 13.

The adjusting screw passes through the kidney-shaped hole of the overflow plate 7 to be connected with the overflow piece 3.

In the embodiment shown in fig. 1 and 3, the side of the overflow plate 7 may also be provided with a through hole or a U-shaped groove communicating with the overflow hole 31.

The height of the overflow piece 3 can be adjusted by arranging a waist-shaped hole on the side surface of the overflow piece 3, then the screw is used for penetrating the waist-shaped hole to be connected with the overflow plate 7, a plurality of threaded holes with different heights can also be arranged on the overflow piece 3, then the screw is used for penetrating the separation shell 1 to be connected with the threaded holes with different heights, or the threaded holes with a plurality of heights are arranged on the separation shell 1, and then the screw is used for penetrating the overflow piece 3 to be connected with the threaded holes with different heights.

Or a through hole can be formed in the bottom end of the overflow piece 3, a threaded hole is formed in the separation shell 1, then a screw penetrates through the through hole, a nut in threaded connection with the screw is arranged at the other end of the overflow piece 3, and then the screw is in threaded connection with the threaded hole in the separation shell 1.

Through the cooperation in adjusting screw and waist type hole, can adjust the overflow plate 7 in the height of overflow 3 sides, make the local coincidence in below of overflow plate 7 and overflow hole 31, and then adjust the intercommunication height of overflow hole 31 and adverse current sedimentation chamber 13, and then make the separation module adjust whole water height of going out according to actual demand, the liquid level height in the separation housing 1 promptly, and then adjust external liquid level height.

In a further embodiment shown in fig. 1, the sludge chamber 12 extends in a direction diagonally below the point where the sludge chamber 12 communicates with the counter-flow settling chamber 13, near the bottom end of the co-current settling chamber 11.

The sewage can flow to the lower part of the countercurrent sedimentation cavity 13, more primary separation liquid can rise into the countercurrent sedimentation cavity 13, and the secondary separation efficiency is improved.

In a further embodiment shown in fig. 1, the kitchen waste water biomass separation module further comprises: the recoil pipe 6.

The backflushing pipe 6 is accommodated at the bottom end of the sludge cavity 12, the outlet end of the backflushing pipe faces the cocurrent sedimentation cavity 11 from the bottom end of the sludge cavity 12, and the inlet end of the backflushing pipe is externally connected with a pressure device and used for outputting backflushing power to the cocurrent sedimentation cavity 11 from the bottom end of the sludge cavity 12.

In this embodiment, the pressure device externally connected to the recoil pipe 6 may be a water pressure output device for outputting regulated water, or may be a gas pressure output device for outputting nitrogen gas.

The back flushing pipe 6 can be externally connected with pressure regulating water or nitrogen, so that the bottom end of the whole sludge cavity 12 can be effectively back flushed, the sludge return phenomenon caused by sludge discharge unsmooth is avoided, and the problem of water quality deterioration of effluent is solved.

Examples

One separation module is sized to be length, width, height, 2320mm, 1530mm, 3250mm, and the total projected area of all the sloping plates is about 18 square meters. When the device is applied to an anaerobic process, the size of a matched settling tank is a circular storage tank with the diameter of 4 meters. When the separation module is not assembled, the deposition surface area is a circular area, 2 x 3.14=12.56 square meters, and after the separation module is assembled, the deposition area is changed into 18+12.56=30.56 square meters, so that the efficiency is improved by 18/12.56=1.43 times. If the aerobic tank is used at the rear end of the aerobic tank, the aerobic tank is normally arranged in a deposition tank with the surface area of 3 x 3 meters, when a separation module is not assembled, the deposition area is 3 x 3=9 square meters, and the deposition area is changed into 18+9=27 square meters after the separation module is assembled, so that the efficiency is improved by 18/9=2 times.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. Kitchen remains waste water living beings separation module, its characterized in that includes:

the separation shell (1) is provided with a cocurrent sedimentation cavity (11) with the top end communicated with the outside, a sludge cavity (12) with the top end communicated with the bottom end of the cocurrent sedimentation cavity (11), a countercurrent sedimentation cavity (13) with the bottom end communicated with the top end of the sludge cavity (12), a water outlet channel (14) communicated with the top end of the countercurrent sedimentation cavity (13), and a sludge discharge channel (15) communicated with the sludge cavity (12);

the countercurrent sedimentation plates (2) are arranged in the countercurrent sedimentation cavity (13) at intervals of a preset distance, and an obliquely extending countercurrent sedimentation channel is formed in the countercurrent sedimentation cavity (13);

the overflow piece (3) is arranged above the countercurrent sedimentation plate (2), is provided with a plurality of overflow holes (31) communicated with the countercurrent sedimentation cavity (13) and an overflow groove (32) which is arranged above the overflow piece (3) and is communicated with the overflow holes (31), and the overflow groove (32) is communicated with the water outlet channel (14);

the overflow hole (31) of the overflow piece (3) is higher than the top end of the same-flow sedimentation cavity (11);

when waste water gets into separation casing (1) in, waste water in the same current sedimentation chamber (11) flows to mud chamber (12) direction, the waste water in mud chamber (12) separates the mud that flows to row mud passageway (15) direction to and to the primary separation liquid that flows to adverse current sedimentation chamber (13) direction, the primary separation liquid in the adverse current sedimentation chamber (13) separates the mud that flows to mud chamber (12) direction to and to the secondary separation liquid that goes out water buffer chamber (16) flow.

2. The kitchen waste water biomass separation module according to claim 1, wherein an effluent buffer chamber (16) is further provided in the separation housing (1);

one end of the water outlet buffer cavity (16) is communicated with the overflow groove (32) of the overflow piece (3), the other end of the water outlet buffer cavity is communicated with the water outlet channel (14), and the water outlet buffer cavity is used for containing a preset amount of secondary separation liquid.

3. The kitchen waste water biomass separation module of claim 1, further comprising:

and the plurality of co-current sedimentation plates (4) are arranged in the co-current sedimentation cavity (11) at intervals of a preset distance to form co-current sedimentation channels.

4. The kitchen waste water biomass separation module of claim 1, further comprising:

and the flow baffle plate (5) is arranged at the upper part of the communicated part of the co-current sedimentation cavity (11) and the sludge cavity (12) so as to ensure that the lower part of the co-current sedimentation cavity (11) is communicated with the sludge cavity (12).

5. The kitchen waste water biomass separation module of claim 1, further comprising:

the lateral surface of the overflow plate (7) is provided with a vertical waist-shaped hole for adjusting the communication height of the overflow hole (31) and the countercurrent sedimentation cavity (13);

and the adjusting screw penetrates through the waist-shaped hole of the overflow plate (7) and is connected with the overflow piece (3).

6. The kitchen waste water biomass separation module according to claim 1, wherein the bottom end of the sludge chamber (12) near the co-current sedimentation chamber (11) extends obliquely towards the sludge chamber (12) below the connection with the counter-current sedimentation chamber (13).

7. The kitchen waste water biomass separation module of claim 1, further comprising:

the backflushing pipe (6) is accommodated at the bottom end of the sludge cavity (12), the outlet end of the backflushing pipe faces the cocurrent sedimentation cavity (11) from the bottom end of the sludge cavity (12), the inlet end of the backflushing pipe is externally connected with a pressure device, and the backflushing pipe is used for outputting backflushing power to the cocurrent sedimentation cavity (11) from the bottom end of the sludge cavity (12).

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