CN215538677U

CN215538677U - Sludge discharge device for sewage treatment

Info

Publication number: CN215538677U
Application number: CN202121193979.0U
Authority: CN
Inventors: 管坚坚
Original assignee: Hangzhou Dajing Environmental Protection Technology Co ltd
Current assignee: Hangzhou Dajing Environmental Protection Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-01-18
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to a sludge discharge device for sewage treatment, which comprises a treatment barrel, wherein a sedimentation cavity is arranged in the treatment barrel, the lower side of the sedimentation cavity is provided with an extrusion cavity with an upward opening and a forward opening, the joint of the lower side of the sedimentation cavity and the upper opening of the extrusion cavity is an inclined plane which is symmetrical left and right, the utility model uses the interference mechanism to fully break the original sludge block and enable the sludge block to freely precipitate, the thickness of the settled sludge is uniform and the sludge particles are small, thereby being convenient for subsequent quick cleaning, simultaneously, the vibration mechanism is used for quickly transferring the sludge during sludge discharge, and the extrusion type discharge method is used, the structure is simple, the problem of blockage cannot occur, and the cleaning efficiency is high.

Description

Sludge discharge device for sewage treatment

Technical Field

The utility model relates to the field of sewage treatment sludge discharge, in particular to a sludge discharge device for sewage treatment.

Background

The sewage treatment is concerned by more and more people, the existing sewage treatment modes comprise a physical precipitation method, a chemical precipitation method, a biodegradation method and the like, sludge cannot be pumped and discharged during the sewage treatment, the existing sewage treatment sludge discharge device mostly uses a traditional sludge pump during the sewage treatment process, mixed liquid is guided into a sedimentation tank for precipitation treatment after the sewage is treated by a biochemical facility, the precipitated clear water is pumped into subsequent storage equipment through a water pumping pipe, then the rest sludge is precipitated and needs to be discharged periodically, and the problem of blockage of a sludge discharge pipe is easy to occur in the subsequent sludge discharge operation because part of the sludge is mutually adsorbed together and has larger volume before precipitation, and the difficulty of the subsequent cleaning operation is improved because of the uneven distribution of precipitation blocks and the like at the bottom of the tank.

SUMMERY OF THE UTILITY MODEL

The technical problems to be solved by the utility model are that the sizes of the sediment blocks are not uniform, the sediment blocks are not uniformly distributed at the bottom of the pool, the cleaning difficulty is improved, and the sludge volume is too large, so that the blockage of a sludge discharge pipe is easy to occur in the sludge discharge operation.

The technical problem of the utility model is mainly solved by the following technical scheme:

the sludge discharge device for sewage treatment comprises a treatment barrel, wherein a sedimentation chamber is arranged in the treatment barrel, an extrusion chamber with an upward opening and a forward opening is arranged on the lower side of the sedimentation chamber, the joint of the lower side of the sedimentation chamber and the upper opening of the extrusion chamber is a bilaterally symmetrical inclined plane, a bearing mechanism for bearing sludge is arranged on the inclined plane on the lower side of the sedimentation chamber, oscillating mechanisms matched with the bearing mechanism are arranged on the opening on the upper side of the extrusion chamber in a bilaterally symmetrical mode, a stirring shaft is arranged on the end wall of one side of the sedimentation chamber in a bilaterally symmetrical mode relative to the opening on the upper side of the extrusion chamber in a rotating mode, a stirring wheel positioned in the sedimentation chamber is fixed on the stirring shaft, and an interference mechanism positioned on the symmetrical central axis of the stirring shaft in the bilateral symmetry mode is arranged below the stirring wheel.

The utility model fully smashes the original sludge block by using the interference mechanism, enables the sludge block to freely precipitate, has uniform thickness after precipitation, has smaller sludge particles, is convenient for subsequent quick cleaning, simultaneously uses the extrusion type discharge method, has simple structure, does not have the problem of blockage, and has higher cleaning efficiency.

Preferably, a sludge discharge pipe is installed at the opening of the front side of the extrusion cavity, an inlet pipe communicated with external water supply equipment is arranged on the end wall of one side of the settling cavity, and a water pumping pipe located at the symmetrical center of the stirring shaft and connected with external water pumping equipment is arranged on the upper end wall of the settling cavity in a communicated manner.

Preferably, the bearing mechanism comprises bearing plates which are symmetrically arranged on the end walls of the left side and the right side of the precipitation cavity, the inclination degree of the bearing plates is the same as that of the inclined planes of the lower side of the precipitation cavity, a pressure cavity with an opening facing the opening direction of the upper side of the extrusion cavity is arranged in the bearing plates, an elastic sealing plate is arranged in the pressure cavity in a sliding manner, a pressure spring is fixedly connected between the elastic sealing plate and the end wall of one side, away from the opening, of the pressure cavity, a sealing block is fixed at one end, close to the opening of the pressure cavity, of the elastic sealing plate, a sliding groove is communicated with the end wall of one side of the pressure cavity, an adsorption block connected with the elastic sealing plate is arranged in the sliding groove in a sliding manner, and an electromagnet capable of being electrified and then adsorbing the adsorption block is fixed in the end wall of one side of the opening of the pressure cavity.

Preferably, the elastic sealing plates have certain elasticity, and are bent when moving from the pressure chamber to the upper opening of the extrusion chamber, and when both the elastic sealing plates move to the upper opening of the extrusion chamber, the sealing blocks abut against each other to seal the settling chamber and disconnect the settling chamber from the extrusion chamber.

As preferred, vibrate the mechanism include about extrusion chamber bilateral symmetry's cam chamber, the cam intracavity slides and is provided with the elastic plate, the up end of elastic plate is fixed with the upside and extends to extrusion chamber upside open-ended connecting rod, the up end of elastic plate with fixedly connected with elastic spring between the up end wall in cam chamber, the upper end of connecting rod is fixed with and is located extrusion chamber upside open-ended striking plate, the loading board is located pressure chamber open-ended side end face is fixed with and is located the elasticity fixed block of striking plate top, the back side end wall in cam chamber rotates and is provided with and is located the vibrations camshaft of elastic plate below, be fixed with on the vibrations camshaft outside curved surface all the time with the vibrations cam of terminal surface contact under the elastic plate.

Preferably, be provided with in the rear end wall in extrusion chamber and extend to the middle chamber of cam chamber rear side, the rear end wall in extrusion chamber rotates and is provided with the rear side and extends to the axis of rotation in the middle chamber, the rear end wall in middle chamber be fixed with the main motor that axis of rotation power is connected, be fixed with in the axis of rotation and be located the extrusion wheel in extrusion chamber, the rear end of vibrations camshaft extends to in the middle chamber and with the rear end of axis of rotation is through a set of belt pulley connection.

Preferably, the interference mechanism comprises a stirring cam shaft which is rotatably arranged in the rear end wall of the sedimentation cavity and is positioned on the symmetrical center line of the stirring shaft, a fixed block which is rotationally connected with the stirring cam shaft is fixed on the rear end wall of the sedimentation cavity, a stirring cam is fixed on the front end, the end face of the front side of the fixed block is symmetrically provided with semicircular flow surrounding blocks in a left-right sliding mode, the flow surrounding blocks are always in contact with the curved surface of the outer side of the stirring cam, an elastic baffle plate with elasticity is fixed on the curved surface of one side of the flow winding block away from the stirring cam shaft, sliding cavities with forward openings are symmetrically arranged in the left and right of the fixed block, sliding blocks connected with the flow winding block are arranged in the sliding cavities in a sliding manner, the sliding block is close to one side terminal surface of stirring camshaft with the sliding chamber is close to fixedly connected with reset spring between one side end wall of stirring camshaft.

Preferably, the rear side of the reset spring is provided with a connecting cavity, the rear end of the stirring cam shaft extends into the connecting cavity, the rear end of the stirring shaft extends into the connecting cavity, the connecting cavity is fixedly connected with a power motor which is in power connection with the stirring shaft between the settling cavities, and the rear end of the stirring shaft on the right side is connected with the rear end of the stirring cam shaft through a group of belt pulleys.

Therefore, the original sludge block is fully smashed by using the interference mechanism and is allowed to freely precipitate, the thickness of the precipitated sludge block is uniform, the sludge particles are small, subsequent quick cleaning is facilitated, meanwhile, the vibration mechanism is used for quickly transferring the sludge during sludge discharge, an extrusion type discharge method is used, the structure is simple, the problem of blockage cannot occur, and the cleaning efficiency is high.

Drawings

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a schematic view of the structure in the direction A of FIG. 1;

FIG. 3 is a sectional view of the structure taken along the line B-B in FIG. 1;

FIG. 4 is a cross-sectional view of the structure taken along the line C-C in FIG. 1;

FIG. 5 is a cross-sectional view of the structure taken along line D-D of FIG. 4;

FIG. 6 is a cross-sectional view of the structure taken in the direction E-E of FIG. 1;

FIG. 7 is a schematic view of the structure in the direction F-F of FIG. 6;

FIG. 8 is an enlarged view of the structure at G of FIG. 1;

fig. 9 is an enlarged view of the structure at H in fig. 1.

Parts, positions and numbers in the drawings: a treatment barrel 10; a sedimentation cavity 11 and a sedimentation cavity; a stirring wheel 12 and a stirring wheel; a water pumping pipe 13 and a water pumping pipe; a stirring camshaft 14, a stirring camshaft; a flow-surrounding block 15 and a flow-disturbing block; an elastic baffle 16, an elastic baffle; a rotating shaft 17, a rotating shaft; extrusion wheel 18, extrusion wheel; extrusion chamber 19, extrusion chamber; a sealing block 20, a sealing block; an elastic sealing plate 21, an elastic sealing plate; a carrier plate 22, a carrier plate; the stirring cam 23, the stirring cam; a stirring shaft 24 and a stirring shaft; a water inlet pipe 25 and a water inlet pipe; a sludge discharge pipe 26; a fixed block 27; a return spring 28, a return spring; a sliding cavity 29, a sliding cavity; a slider 31, a slider; a power motor 32, a power motor; a connection cavity 33, a connection cavity; an intermediate chamber 34, an intermediate chamber; main motor 35, main motor; a vibrating camshaft 36, a vibrating camshaft; pressure spring 37, pressure spring; pressure chamber 38, pressure chamber; an electromagnet 39, an electromagnet; an adsorption block 40, an adsorption block; a chute 41, a chute; the vibration cam 42, vibration cam; elastic springs 43, elastic springs; a connecting rod 44, a connecting rod; an impact plate 45, an impact plate; an elastic fixing block 46 and an elastic fixing block; spring plate 47, spring plate; cam cavity 48, cam cavity.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b): the sludge discharge device for sewage treatment comprises a treatment barrel 10, wherein a sedimentation chamber 11 is arranged in the treatment barrel 10, an extrusion chamber 19 with an upward opening and a forward opening is arranged on the lower side of the sedimentation chamber 11, the lower side of the sedimentation chamber 11 and the upper side opening of the extrusion chamber 19 are inclined planes which are bilaterally symmetrical, a bearing mechanism for bearing sludge is arranged on the inclined plane on the lower side of the sedimentation chamber 11, a vibrating mechanism which is matched with the bearing mechanism is arranged on the upper side opening of the extrusion chamber 19 in a bilateral symmetry manner, a stirring shaft 24 is rotationally arranged on the rear end wall of the sedimentation chamber 11 relative to the upper side opening of the extrusion chamber 19 in a bilateral symmetry manner, a stirring wheel 12 positioned in the sedimentation chamber 11 is fixed on the stirring shaft 24, an interference mechanism positioned on the symmetrical central axis of the stirring shaft 24 is arranged below the stirring wheel 12, and a sludge discharge pipe 26 is arranged at the front side opening of the extrusion chamber 19, the left end wall of the settling chamber 11 is provided with a water inlet pipe 25 communicated with an external water supply device, the upper end wall of the settling chamber 11 is provided with a water pumping pipe 13 which is positioned at the symmetrical center of the stirring shaft 24 and one end of which is connected with an external water pumping device, the bearing mechanism comprises bearing plates 22 which are arranged on the left and right end walls of the settling chamber 11 in a bilateral symmetry manner, the inclination degree of the bearing plates 22 is the same as that of the lower side inclined surface of the settling chamber 11, a pressure chamber 38 with an opening facing to the opening direction of the upper side of the extrusion chamber 19 is arranged in the bearing plates 22, an elastic sealing plate 21 is arranged in the pressure chamber 38 in a sliding manner, a pressure spring 37 is fixedly connected between the elastic sealing plate 21 and the end wall of one side of the pressure chamber 38 far away from the opening, a sealing block 20 is fixed at one end of the elastic sealing plate 21 close to the opening of the pressure chamber 38, and a chute 41 is arranged on the end wall of one side of the pressure chamber 38 in a communicating manner, an adsorption block 40 connected with the elastic sealing plate 21 is arranged in the sliding groove 41 in a sliding manner, an electromagnet 39 capable of adsorbing the adsorption block 40 after being electrified is fixed in the end wall of one side of the sliding groove 41, which is far away from the opening of the pressure cavity 38, the elastic sealing plate 21 has certain elasticity, the elastic sealing plate 21 bends when moving from the pressure cavity 38 to the opening of the upper side of the extrusion cavity 19, when the two elastic sealing plates 21 move to the opening of the upper side of the extrusion cavity 19, the sealing blocks 20 abut against each other, the sealing blocks 20 are in close contact under the pressure of the pressure spring 37, gas cannot pass through, the sedimentation cavity 11 is sealed, and is disconnected from the extrusion cavity 19, the oscillation mechanism comprises cam cavities 48 which are bilaterally symmetrical relative to the extrusion cavity 19, and elastic plates 47 are arranged in the cam cavities 48 in a sliding manner, a connecting rod 44 with an upper side extending to the upper side opening of the extrusion chamber 19 is fixed on the upper end face of the elastic plate 47, an elastic spring 43 is fixedly connected between the upper end face of the elastic plate 47 and the upper end wall of the cam chamber 48, an impact plate 45 with an upper side opening of the extrusion chamber 19 is fixed on the upper end of the connecting rod 44, an elastic fixing block 46 above the impact plate 45 is fixed on one side end face of the bearing plate 22 at the opening of the pressure chamber 38, the impact plate 45 can collide with the elastic fixing block 46, so that the bearing plate 22 vibrates, sludge attached to the bearing plate 22 is rapidly dropped, sludge attached to the impact plate 45 is rapidly dropped, a vibration cam shaft 36 located below the elastic plate 47 is rotatably arranged on the rear side end wall of the cam chamber 48, a vibration cam 42 with an outer side curved surface always contacting with the lower end face of the elastic plate 47 is fixed on the vibration cam shaft 36, be provided with in the rear end wall of extrusion chamber 19 and extend to the middle chamber 34 of cam chamber 48 rear side, the rear end wall of extrusion chamber 19 rotates and is provided with the axis of rotation 17 that the rear side extends to in the middle chamber 34, the rear end wall of middle chamber 34 be fixed with axis of rotation 17 power connection's main motor 35, be fixed with on the axis of rotation 17 and be located extrusion wheel 18 in the extrusion chamber 19, the rear end of vibrations camshaft 36 extend to in the middle chamber 34 and with the rear end of axis of rotation 17 is through a set of belt pulley connection, interference mechanism is including rotating the setting in precipitation chamber 11 rear end wall and be located stirring camshaft 14 on the (mixing) 24 symmetry center line, the rear end wall of precipitation chamber 11 be fixed with stirring camshaft 14 rotates the fixed block 27 of being connected, the front end of 14 is fixed with stirring cam 23, the front side end face bilateral symmetry slip of fixed block 27 is provided with the streaming block 15 that is the semicircle form, the flow-around block 15 is always in contact with the outer side curved surface of the stirring cam 23, one side curved surface of the flow-around block 15, which is far away from the stirring cam shaft 14, is fixed with an elastic baffle 16, sliding cavities 29 with forward openings are symmetrically arranged in the fixed block 27 in a bilateral mode, sliding blocks 31 connected with the flow-around block 15 are arranged in the sliding cavities 29 in a sliding mode, the sliding blocks 31 are close to one side end surfaces of the stirring cam shaft 14 and the sliding cavities 29 are close to a side end wall of the stirring cam shaft 14, return springs 28 are fixedly connected between the side end walls, rear sides of the return springs 28 are provided with connecting cavities 33, the rear ends of the stirring cam shaft 14 extend into the connecting cavities 33, the rear ends of the stirring shafts 24 extend into the connecting cavities 33, the connecting cavities 33 and the settling cavities 11 are fixedly connected with power motors 32 in power connection with the stirring shafts 24, the rotation directions of the two power motors 32 are opposite, and the rear end of the stirring shaft 24 on the right side is connected with the rear end of the stirring cam shaft 14 through a group of belt pulleys.

When the device is used, the two symmetrical elastic sealing plates 21 move to the lower opening of the sedimentation chamber 11, the electromagnet 39 is not electrified, at the moment, the two sealing blocks 20 are tightly contacted under the action of the pressure spring 37, so that the sedimentation chamber 11 is in a completely sealed state, then, the sewage needing to be purified outside enters the sedimentation chamber 11 through the water inlet pipe 25, the water supply can be stopped when the water level in the sedimentation chamber 11 is flush with the lowest side of the water inlet pipe 25, then, the two power motors 32 run oppositely, so that the two stirring wheels 12 rotate and turn oppositely, at the moment, the stirring wheel 12 on the left side rotates anticlockwise, the stirring wheel 12 on the right side rotates clockwise, so that the sludge in the water is scattered, meanwhile, the stirring shaft 24 on the right side drives the stirring cam shaft 14 to rotate through a group of belt pulleys, so as to drive the stirring cam 23 to rotate, so that the streaming blocks 15 move towards the left side and the right side respectively, so that the return spring 28 is gradually stretched through the sliding block 31, and at the same time, the elastic baffle 16 is bent under the action of water flow obstruction, so that the interval between the adjacent elastic baffles 16 is increased, and further more water flow is promoted, when the stirring cam 23 rotates ninety degrees, the circumfluence block 15 moves to a limit position, and then the sliding block 31 is reset under the action of the return spring 28 along with the continuous rotation of the stirring cam 23, and then the circumfluence block 15 is reset by pulling, so that reciprocating motion is realized, because the direction of the circumfluence block 15 pushing the water flow is opposite to the direction of the movement of the water flow driven by the rotation of the stirring wheel 12, turbulent flow is generated at the junction of the two water flows, and further silt of the water agglomerate can be scattered, when the circumfluence block 15 moves for at least ten cycles, the power motor 32 is turned off, then the water stands, the silt is deposited to the lower side of the settling chamber 11, and the clarified water is located at the upper side part of the silt, after standing, clarified water is pumped out through the water pumping pipe 13 by external water pumping equipment, then the residual sludge part is stored to the bottom of the sedimentation cavity 11, then the water inlet pipe 25 can be restored to supply water, so as to reciprocate, when the thickness of the sludge at the bottom of the sedimentation cavity 11 is about to exceed the inclined plane part at the bottom of the sedimentation cavity 11, the electromagnet 39 is electrified, so as to adsorb the adsorption block 40, so that the elastic sealing plate 21 moves into the pressure cavity 38, the pressure spring 37 is compressed, so that the sedimentation cavity 11 is communicated with the extrusion cavity 19, so that the sludge at the bottom of the sedimentation cavity 11 enters the extrusion cavity 19, meanwhile, the main motor 35 is started, so as to drive the rotating shaft 17 to rotate, so as to drive the vibration cam shaft 36 to rotate through a group of belt pulleys, the vibration cam shaft 36 drives the vibration cam 42 to rotate, so as to enable the elastic plate 47 to reciprocate up and down under the action of the elastic spring 43, so that the connecting rod 44 drives the impact plate 45 to reciprocate up and down, therefore, when the impact plate 45 moves upwards and collides with the elastic fixing block 46, the bearing plate 22 vibrates through the elastic fixing block 46, so that the sludge attached to the surfaces of the bearing plate 22 and the impact plate 45 is quickly separated and finally enters the extrusion cavity 19, meanwhile, the rotating shaft 17 drives the extrusion wheel 18 to rotate, so that the sludge entering the extrusion cavity 19 slowly moves towards the front side under the action of the extrusion wheel 18 and finally enters the sludge discharge pipe 26 and is discharged, the electromagnet 39 is powered off after the sludge is cleaned, then the elastic sealing plate 21 is reset under the action of the pressure spring 37, the sealing block 20 is in close contact again, and the sedimentation cavity 11 is reset to be in a closed state again, and the reciprocating operation is carried out.

The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

Claims

1. The utility model provides a sewage treatment is with arranging mud device, includes processing bucket (10), its characterized in that: a sedimentation cavity (11) is arranged in the treatment barrel (10), an extrusion cavity (19) with an upward opening and a forward opening is arranged at the lower side of the sedimentation cavity (11), the connection part of the lower side of the sedimentation cavity (11) and the upper side opening of the extrusion cavity (19) is a left-right symmetrical inclined plane, a bearing mechanism for bearing the sludge is arranged on the inclined plane at the lower side of the sedimentation cavity (11), oscillating mechanisms matched with the bearing mechanism are symmetrically arranged at the left and right sides of the opening at the upper side of the extrusion cavity (19), a stirring shaft (24) is arranged on the end wall of one side of the sedimentation cavity (11) in a left-right symmetrical manner relative to the upper opening of the extrusion cavity (19), a stirring wheel (12) positioned in the sedimentation cavity (11) is fixed on the stirring shaft (24), and an interference mechanism which is positioned on the symmetrical central axis of the stirring shaft (24) in bilateral symmetry is arranged below the stirring wheel (12).

2. The sludge discharging device for sewage treatment as claimed in claim 1, wherein: mud pipe (26) are installed to the front side opening department in extrusion chamber (19), one side end wall intercommunication in precipitation chamber (11) is provided with inlet tube (25) with external water supply equipment intercommunication, the last endwall intercommunication in precipitation chamber (11) is provided with and is located the pumping pipe (13) that the symmetric center department and one end of (mixing) shaft (24) are connected with external pumping equipment.

3. The sludge discharging device for sewage treatment as claimed in claim 1, wherein: the bearing mechanism comprises bearing plates (22) which are arranged on the left side end wall and the right side end wall of the settling chamber (11) in a bilateral symmetry mode, the inclination degree of the bearing plates (22) is the same as that of the inclined plane on the lower side of the settling chamber (11), a pressure chamber (38) with an opening facing the opening direction on the upper side of the extrusion chamber (19) is arranged in each bearing plate (22), an elastic sealing plate (21) is arranged in each pressure chamber (38) in a sliding mode, a pressure spring (37) is fixedly connected between each elastic sealing plate (21) and the end wall of one side, far away from the opening, of the pressure chamber (38), one end, close to the opening of the pressure chamber (38), of each elastic sealing plate (21) is fixedly provided with a sealing block (20), the end wall of one side of the pressure chamber (38) is communicated with a sliding groove (41), and an adsorption block (40) connected with the elastic sealing plate (21) is arranged in each sliding mode in each sliding groove (41), an electromagnet (39) which can adsorb the adsorption block (40) after being electrified is fixed in the end wall of one side of the sliding groove (41) far away from the opening of the pressure cavity (38).

4. A sludge discharging apparatus for sewage treatment as claimed in claim 3, wherein: the elastic sealing plates (21) have certain elasticity, when the elastic sealing plates (21) move to the upper opening of the extrusion cavity (19) from the pressure cavity (38), the elastic sealing plates bend, and when the two elastic sealing plates (21) move to the upper opening of the extrusion cavity (19), the sealing blocks (20) abut against each other, so that the sedimentation cavity (11) is closed and is disconnected from the extrusion cavity (19).

5. A sludge discharging apparatus for sewage treatment as claimed in claim 3, wherein: the oscillation mechanism comprises cam cavities (48) which are bilaterally symmetrical about the extrusion cavity (19), an elastic plate (47) is arranged in the cam cavities (48) in a sliding mode, the upper end face of the elastic plate (47) is fixedly provided with a connecting rod (44) with the upper side extending to the upper side of the extrusion cavity (19) in an open mode, an elastic spring (43) is fixedly connected between the upper end face of the elastic plate (47) and the upper end wall of the cam cavity (48), the upper end of the connecting rod (44) is fixedly provided with an impact plate (45) which is positioned at the upper side of the extrusion cavity (19) in an open mode, an elastic fixing block (46) which is positioned above the impact plate (45) is fixed on the end face of one side of the opening of the pressure cavity (38) of the bearing plate (22), the rear side end wall of the cam cavity (48) is rotatably provided with an oscillation cam shaft (36) which is positioned below the elastic plate (47), and a vibration cam (42) with an outer curved surface always in contact with the lower end surface of the elastic plate (47) is fixed on the vibration cam shaft (36).

6. The sludge discharging device for sewage treatment as claimed in claim 5, wherein: be provided with in the rear end wall in extrusion chamber (19) and extend to middle chamber (34) of cam chamber (48) rear side, the rear end wall of extrusion chamber (19) rotates and is provided with the rear side and extends to axis of rotation (17) in middle chamber (34), the rear end wall of middle chamber (34) be fixed with axis of rotation (17) power connection's main motor (35), be fixed with on axis of rotation (17) and be located extrusion wheel (18) in extrusion chamber (19), the rear end of vibrations camshaft (36) extend to in middle chamber (34) and with the rear end of axis of rotation (17) is through a set of belt pulley connection.

7. The sludge discharging device for sewage treatment as claimed in claim 1, wherein: the interference mechanism comprises a stirring cam shaft (14) which is rotatably arranged in the rear end wall of the settling chamber (11) and is positioned on the symmetrical center line of the stirring shaft (24), a fixing block (27) which is rotatably connected with the stirring cam shaft (14) is fixed on the rear end wall of the settling chamber (11), a stirring cam (23) is fixed on the front end of the stirring cam shaft (14), a flow-around block (15) which is semicircular is arranged on the front end face of the fixing block (27) in a bilateral symmetry sliding mode, the flow-around block (15) is always in contact with the outer side curved surface of the stirring cam (23), an elastic baffle (16) with elasticity is fixed on one side curved surface of the stirring cam shaft (14) far away from the flow-around block (15), a sliding chamber (29) with a forward opening is arranged on the fixing block (27) in the bilateral symmetry, a sliding block (31) connected with the flow-around block (15) is arranged in the sliding chamber (29) in a sliding mode, and a return spring (28) is fixedly connected between the end surface of one side, close to the stirring camshaft (14), of the sliding block (31) and the end wall of one side, close to the stirring camshaft (14), of the sliding cavity (29).

8. The sludge discharging device for sewage treatment as claimed in claim 7, wherein: reset spring (28) rear side be provided with and connect chamber (33), the rear end of stirring camshaft (14) extends to connect in chamber (33), the rear end of (mixing) shaft (24) extends to connect in chamber (33), connect chamber (33) with between sedimentation chamber (11) fixedly connected with power motor (32) that (mixing) shaft (24) power is connected, the right side the rear end of (mixing) shaft (24) with the rear end of stirring camshaft (14) is through a set of belt pulley connection.