CN113350886A

CN113350886A - Multiple filtration equipment for sewage treatment

Info

Publication number: CN113350886A
Application number: CN202110706628.3A
Authority: CN
Inventors: 刘强; 刘思瑶
Original assignee: Xuzhou University of Technology
Current assignee: Xuzhou University of Technology
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-09-07
Anticipated expiration: 2041-06-24
Also published as: CN113350886B

Abstract

The invention discloses a multiple filtering device for sewage treatment, which comprises a water feeding pipe, a treatment box, a sewer pipe and a control box, wherein the water feeding pipe and the sewer pipe are respectively arranged at two ends of the treatment box; the multi-filtration equipment for sewage treatment has the beneficial effects that the structure is simple, through the integral box-type structure, the garbage with large particle size particles in the sewage is accumulated and separated by utilizing the matching of the main shaft rotary type filtration mechanism and the blocking blanking component, and then the net type arresting mechanism and the net type replacing mechanism are matched to filter fine impurities, so that the sewage treatment efficiency is improved, and the volume of the sewage treatment equipment is reduced.

Description

Multiple filtration equipment for sewage treatment

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a multiple filtration device for sewage treatment.

Background

The sewage is a common byproduct in daily production and life, the components contained in the sewage are various, therefore, the sewage treatment process is diversified, but most of sewage needs to be filtered in the treatment process, in the using process of the existing sewage treatment equipment, different grades are required to be classified into a primary filter, a middle-grade filter and a high-grade filter according to the requirements under most conditions, so that when the equipment is used, when the filtration is needed, the multi-stage filtration is often needed to be connected in series, which not only occupies a large space, and the equipment cost and the maintenance cost are higher in the using process, and meanwhile, when the existing filtering equipment is used, the filter element or the filter screen of the internal filter needs to be cleaned regularly, the machine needs to be shut down, the maintenance cost is high, and the workload is large.

Disclosure of Invention

The invention aims to solve the problems, designs a multiple filtering device for sewage treatment and solves the problems of the prior art.

The technical scheme of the invention for realizing the aim is as follows: a multi-filtering device for sewage treatment comprises a water feeding pipe, a treatment box, a sewer pipe and a control box, wherein the water feeding pipe and the sewer pipe are respectively arranged at two ends of the treatment box;

the main shaft rotary type filtering mechanism comprises: the device comprises a pair of through grooves, a roller, a rotary tooth groove, a driving motor, an adjusting gear, a plurality of filtering holes, a rotary bearing, a thread plate and an inner protective cylinder;

a pair of symmetrical through grooves are respectively arranged at the two ends of the treatment box, the two ends of the roller are respectively embedded in the pair of through grooves, one end of the treatment box close to the water feeding pipe is provided with a sealing component which is sleeved at the end part of the roller, the roller is sleeved with a rotary tooth socket, a driving motor is arranged on one side of the processing box, an adjusting gear meshed with an adjusting tooth groove is arranged on the driving end of the driving motor, a plurality of filter holes are densely distributed in the middle section of the roller in an annular array, a plugging blanking assembly is arranged at one end of the roller opposite to the sealing assembly, a rotary bearing is embedded in the through groove positioned at one side in the treatment box, the roller is embedded in the rotary bearing, the filter hole outside cover that the cylinder just is located the middle section is equipped with the thread plate outward, the cylinder overcoat is equipped with interior casing, interior casing and upper hose intercommunication, the thread plate is laminated with interior casing inner wall.

The net arresting mechanism comprises: the filter comprises a partition board, a through hole, a pair of limiting grooves, an insertion board, a plurality of filter grooves and a plurality of filter screens;

the treatment incasement just is provided with the division board with cylinder end connection, the clearing hole has been seted up at the division board center, it is equipped with the parcel sliding ring to pass through downthehole and lie in the cylinder end the clearing hole both sides are equipped with a pair of spacing groove, cartridge board cartridge is in a pair of spacing inslot and with handle the contact of incasement face, a plurality of rose tanks have been seted up to the direction of perpendicular to level on the cartridge board, and is a plurality of the filter screen is inserted and is equipped with.

The mesh replacement mechanism comprises: the device comprises a slot, a mounting plate, a plurality of sockets, a plurality of sealing strips, a plurality of pull handles, a plurality of sedimentation tanks and a movable plate;

the slot that matches with the cartridge board is seted up to the roof of handling the case, the cartridge board periphery is equipped with the mounting panel, be equipped with a plurality of connecting bolts on the mounting panel and be connected with handling the case roof, it is a plurality of the filter tank is the logical groove of rectangle structure, and is a plurality of the filter tank top is equipped with a plurality of bellmouths, and is a plurality of the filter screen top is equipped with a plurality of sealing strips, and is a plurality of the sealing strip is with a plurality of the bellmouth matches, and is a plurality of be equipped with a plurality of handles on the sealing strip, and is a plurality of filter tank bottom one side is equipped with a plurality of subsides groove, and is a plurality of the subsides groove is equipped with the fly leaf for falling trapezium structure and bottom surface respectively.

The seal assembly includes: the sealing device comprises a sealing sleeve, a sealing ring and a plurality of fixing bolts;

the processing box is arranged on one side of the processing box, a sealing sleeve is arranged outside the through hole, a sealing ring is arranged on the sealing sleeve, the sealing sleeve is inserted into the side of the processing box, a plurality of through holes are formed in the sealing sleeve in an annular mode, a plurality of fixing bolts are embedded in the through holes, and the fixing bolts are connected to the side wall of the processing box.

The shutoff unloading subassembly includes: the device comprises a plurality of telescopic pipes, a plurality of springs, a plurality of adjusting push rods, a ring plate and a pair of feed openings;

handle case middle section and be located the division board and be located the tip outer loop of cylinder and be equipped with a plurality of flexible pipes, it is a plurality of flexible intraductal the inlaying is equipped with a plurality of springs, and is a plurality of flexible end of pipe passes through the crown plate and connects, the width of crown plate matches with the interval of cylinder and interior protective barrel, the crown plate inner and outer ring is equipped with a pair of closed ring respectively, interior protective barrel tip is equipped with the closing plate and handles the laminating of incasement wall, it is equipped with a pair of feed opening to handle case both sides lateral surface, and is a plurality of flexible pipe embedding is equipped with a plurality of adjusting push rod.

The processing box is a cavity shell with a rectangular structure, and a pair of feed openings are formed in the two sides of the side wall of the processing box and between the end part of the inner protective cylinder and the isolation plate.

One end of the roller exposed out of the treatment box is of a closed structure, the other end of the roller is open, and the circumferential wall surfaces at the two ends of the roller are not provided with filter holes.

The pair of limiting grooves are plates with rectangular structures, and a pair of sliding grooves matched with the width of the insertion plate are formed in the opposite wall surfaces of the pair of limiting grooves.

The water feeding pipe is installed on the top wall of one end of the treatment box and penetrates through the top wall of the treatment box to be communicated with the inner protection barrel.

The inner wall of the treatment box is provided with a separation plate, the separation plate is of a triangular structure, and the bottom ends of two sides of the separation plate are connected with the feed openings.

The multiple filtering equipment for sewage treatment manufactured by the technical scheme of the invention has a simple structure, and through an integral box-type structure, the garbage with large particle size particles in sewage is accumulated and separated by utilizing the matching of the main shaft rotary type filtering mechanism and the blocking blanking component, and then the net type blocking mechanism and the net type replacing mechanism are matched to filter fine impurities, so that the sewage treatment efficiency is improved, and the volume of the sewage treatment equipment is reduced.

Drawings

Fig. 1 is a schematic front view of a multiple filtration apparatus for sewage treatment according to the present invention.

Fig. 2 is a schematic side view of a multi-filtration apparatus for sewage treatment according to the present invention.

Fig. 3 is a schematic top view of a multi-filtration apparatus for sewage treatment according to the present invention.

Fig. 4 is a schematic sectional view showing a position a-a of a multi-filtration apparatus for sewage treatment according to the present invention.

Fig. 5 is a schematic sectional view showing the position b-b of a multi-filtration apparatus for sewage treatment according to the present invention.

Fig. 6 is a schematic sectional view showing a position c-c of a multi-filtering apparatus for sewage treatment according to the present invention.

Fig. 7 is a partial sectional structural view of a multi-filtration apparatus for sewage treatment according to the present invention.

Fig. 8 is a partially enlarged schematic view of a multiple filtration apparatus for wastewater treatment according to the present invention.

In the figure: 1. a water feeding pipe; 2. a treatment tank; 3. a sewer pipe; 4. a control box; 5. a through groove; 6. a drum; 7. rotating the tooth socket; 8. a drive motor; 9. an adjusting gear; 10. a filtration pore; 11. a rotating bearing; 12. a thread plate; 13. an inner protective cylinder; 14. a separator plate; 15. through the hole; 16. a limiting groove; 17. a board is inserted; 18. a filter tank; 19. a filter screen; 20. a slot; 21. mounting a plate; 22. a socket; 23. a sealing strip; 24. pulling a handle; 25. a deposition tank; 26. a movable plate; 27. sealing sleeves; 28. a seal ring; 29. fixing the bolt; 30. a telescopic pipe; 31. a spring; 32. adjusting the push rod; 33. a ring plate; 34. a feeding port; 35. and (5) separating the plates.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings, and as shown in fig. 1 to 5, the present embodiment is characterized by comprising a water feeding pipe, a treatment tank, a water discharging pipe and a control tank, wherein the two ends of the treatment tank are respectively provided with the water feeding pipe and the water discharging pipe, the control tank is installed at one side of the treatment tank, the treatment tank is provided with a main shaft rotary type filtering mechanism, one side of the main shaft rotary type filtering mechanism is provided with a net type arresting mechanism, and the net type arresting mechanism is provided with a net type replacing mechanism; the main shaft rotary type filtering mechanism comprises: the device comprises a pair of through grooves, a roller, a rotary tooth groove, a driving motor, an adjusting gear, a plurality of filtering holes, a rotary bearing, a thread plate and an inner protective cylinder; the two ends of the treatment box are respectively provided with a pair of symmetrical through grooves, the two ends of the roller are respectively embedded in the pair of through grooves, one end of the treatment box, which is close to a water feeding pipe, is provided with a sealing component sleeved at the end part of the roller, the roller is sleeved with a rotary tooth groove, one side of the treatment box is provided with a driving motor, a driving end of the driving motor is provided with an adjusting gear which is meshed with the adjusting tooth groove, the middle section of the roller is densely provided with a plurality of filtering holes in an annular array, one end of the roller, which is opposite to the sealing component, is provided with a plugging blanking component, a rotary bearing is embedded in the through groove in the treatment box and positioned at one side of the treatment box, the roller is embedded in the rotary bearing, the outer side of the filtering hole in the middle section of the roller is sleeved with a threaded plate, the outer sleeve of the roller is provided with an inner protective cylinder, the inner protective cylinder is communicated with the water feeding pipe, and the threaded plate is attached to the inner wall of the inner protective cylinder; the multiple filtering equipment for sewage treatment is simple in structure, through the integral box type structure, the garbage of large-particle-size particles in sewage is accumulated and separated by utilizing the matching of the main shaft rotary type filtering mechanism and the blocking blanking assembly, and fine impurities are filtered by matching with the net type blocking mechanism and the net type replacing mechanism, so that the sewage treatment efficiency is improved, and the volume of the sewage treatment equipment is reduced.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.

Example (b): as can be seen from the attached figures 1-8 of the specification, the multi-filtering equipment for sewage treatment comprises a water feeding pipe 1, a treatment box 2, a water discharging pipe 3 and a control box 4, wherein the water feeding pipe 1 and the water discharging pipe 3 are respectively arranged at two ends of the treatment box 2, the control box 4 is arranged at one side of the treatment box 2, a main shaft rotary type filtering mechanism is arranged on the treatment box 2, a net type blocking mechanism is arranged at one side of the main shaft rotary type filtering mechanism, a net type replacing mechanism is arranged on the net type blocking mechanism, in the concrete implementation process, the treatment box 2 is used as a main container for water treatment, sewage is introduced into the treatment box 2 through the water feeding pipe 1, the control box 4 is used for controlling the operation of an internal electric device, water is primarily filtered through the main shaft rotary type filtering mechanism in the treatment box 2, solid impurities with large block diameter are separated after the filtration is finished, and secondary filtration is carried out by the net type blocking mechanism, fine solid particles in the filter screen can be filtered, and meanwhile, the net sheets can be replaced successively through the net type replacing mechanism, so that the filter screen 19 is prevented from being blocked, and the filter screen is convenient to maintain and clean;

as can be seen from fig. 1 to 8 of the specification, the spindle rotation type filter mechanism includes: the device comprises a pair of through grooves 5, a roller 6, a rotary tooth groove 7, a driving motor 8, an adjusting gear 9, a plurality of filtering holes 10, a rotary bearing 11, a thread plate 12 and an inner protective cylinder 13, wherein the connection relation and the position relation are as follows;

a pair of symmetrical through grooves 5 are respectively formed in two ends of a treatment box 2, two ends of a roller 6 are respectively embedded in the pair of through grooves 5, a sealing assembly is arranged at one end, close to a water feeding pipe 1, of the treatment box 2 and sleeved at the end of the roller 6, a rotary tooth socket 7 is sleeved on the roller 6, a driving motor 8 is arranged at one side of the treatment box 2, an adjusting gear 9 is arranged on a driving end of the driving motor 8 and meshed with the adjusting tooth socket, a plurality of filter holes 10 are densely distributed in the middle section of the roller 6 in an annular array mode, a plugging blanking assembly is arranged at one end, opposite to the sealing assembly, of the roller 6, a rotary bearing 11 is embedded in the through groove 5 in one side of the treatment box 2, the roller 6 is embedded in the rotary bearing 11, a thread plate 12 is sleeved outside the filter hole 10 in the middle section outside the roller 6, an inner protection barrel 13 is sleeved outside the roller 6, the inner protection barrel 13 is communicated with the water feeding pipe 1, and the thread plate 12 is attached to the inner wall of the inner protection barrel 13;

in the specific implementation process, the water feeding pipe 1 is installed on the top wall of one end of the treatment box 2 and penetrates through the top wall of the treatment box 2 to be communicated with the inner protection barrel 13, one end of the roller 6 exposed out of the treatment box 2 is of a closed structure, the other end of the roller 6 is open, the circumferential wall surfaces of two ends of the roller 6 are not provided with the filter holes 10, the water feeding pipe 1 feeds sewage into the inner protection barrel 13, two ends of the roller 6 are fixed through the through grooves 5 respectively, the driving motor 8 is meshed with the adjusting tooth sockets through the adjusting gear 9 to drive the adjusting tooth sockets to rotate and drive the roller 6 to rotate, so that the roller 6 drives the thread plates 12 thereon to rotate, large particles in the sewage are separated by the filter holes 10 on the roller 6, the sewage is fed into the roller 6, the sewage outside the roller 6 is secondarily filtered by the net type filtering mechanism on the other side of the treatment box 2, large solid impurities are pushed to one side of the blocking blanking component under the action of the thread plates 12, after the solid particles are accumulated to a certain degree, the solid particles are discharged under the pushing action.

As can be seen from fig. 1 to 8 of the specification, the blocking and blanking assembly comprises: a plurality of extension tubes 30, a plurality of springs 31, a plurality of adjusting push rods 32, a ring plate 33 and a pair of feed openings 34, wherein the connection relationship and the position relationship are as follows;

handle case 2 middle section and be located division board 14 and be located the tip outer loop of cylinder 6 and be equipped with a plurality of flexible pipes 30, a plurality of flexible pipe 30 embedded a plurality of springs 31 that are equipped with, the flexible end of a plurality of flexible pipes 30 is connected through crown plate 33, the width of crown plate 33 matches with the interval of cylinder 6 and interior protective barrel 13, the crown plate 33 inner and outer ring is equipped with a pair of closed ring respectively, interior protective barrel 13 tip is equipped with the closing plate and handles 2 inner walls laminating of case, handle case 2 both sides wall face and be equipped with a pair of feed opening 34, a plurality of flexible pipe 30 embedded a plurality of adjusting push rods 32 that are equipped with.

In the specific implementation process, the processing box 2 is a hollow shell with a rectangular structure, a pair of feed openings 34 are arranged on two sides of the side wall of the processing box 2 and between the end part of the inner protective cylinder 13 and the partition plate 14, a separation plate 35 is arranged on the inner wall of the processing box 2, the separation plate 35 is in a triangular structure, the bottom ends of the two sides are connected with the pair of feed openings 34, a pair of feed openings 34 are arranged on two sides of the processing box 2, a plurality of springs 31 are embedded in a plurality of telescopic pipes 30, the telescopic ends of a plurality of adjusting push rods 32 are connected with the telescopic ends of the telescopic pipes 30, the telescopic pipes 30 are used for supporting the ring plate 33, large-particle garbage is pushed and accumulated by utilizing the space between the ring plate 33 and the inner protective cylinder 13 and the roller 6, when the garbage is excessively accumulated, the ring plate 33 slides back by removing the pushing force of the adjusting push rods 32, and the extruded garbage is pushed by subsequent garbage to be discharged out of the inner protective cylinder 13, so that the garbage can be discharged from the pair of the feed openings 34, after the garbage with large particle size is discharged, the adjusting push rod 32 is started to push the annular plate 33 to close the space between the inner protective cylinder 13 and the roller 6 again under the action of the spring 31.

As can be seen from figures 1 to 8 of the specification, the above-described sealing assembly comprises: a sealing sleeve 27, a sealing ring 28 and a plurality of fixing bolts 29, wherein the connection relationship and the position relationship are as follows;

processing case 2 is last just to be located a pair of one of them side through-hole and be equipped with seal cover 27 outward, is equipped with sealing ring 28 on the seal cover 27, and seal cover 27 cartridge is equipped with a plurality of through-holes in this side through-hole on the seal cover 27, and a plurality of fixing bolt 29 are equipped with to a plurality of through-holes are embedded, and a plurality of fixing bolt 29 are connected on processing case 2 lateral wall.

In the specific implementation process, the space between the through groove 5 and the roller 6 is sealed by a sealing ring 28 on the sealing sleeve 27, and the sealing sleeve 27 is fixed by a plurality of fixing bolts 29.

As can be seen from fig. 1 to 8 of the specification, the net arresting mechanism comprises: the filter comprises a partition plate 14, a through hole 15, a pair of limiting grooves 16, a plug-in board 17, a plurality of filter grooves 18 and a plurality of filter screens 19, wherein the connection relationship and the position relationship are as follows;

the treatment box 2 is internally provided with a separation plate 14 connected with the end part of the roller 6, the center of the separation plate 14 is provided with a through hole 15, the end part of the roller 6, which is positioned in the through hole 15, is provided with a pair of limiting grooves 16 at two sides of the through hole 15 for wrapping a sliding ring, the insertion plate 17 is inserted in the pair of limiting grooves 16 and contacts with the bottom surface of the treatment box 2, the insertion plate 17 is provided with a plurality of filter tanks 18 vertical to the horizontal direction, and a plurality of filter screens 19 are inserted in the filter tanks 18.

In the specific implementation process, the pair of limiting grooves 16 are plates with rectangular structures, a pair of sliding grooves matched with the width of the insertion plate 17 are formed in opposite wall surfaces of the pair of limiting grooves 16, the space in the treatment box 2 is separated through the partition plate 14 on the treatment box 2, one side of the partition plate 14 is provided with the pair of limiting grooves 16 for fixing the bottom end of the insertion plate 17, the filter grooves 18 on the insertion plate 17 are respectively communicated with the inner groove of the roller 6 and the space on one side of the sewer pipe 3, and the filter net 19 on the filter grooves is used for filtering a small amount of residual impurities in sewage.

As can be seen from fig. 1 to 8 of the specification, the above-mentioned net type replacement mechanism comprises: the device comprises a slot 20, a mounting plate 21, a plurality of sockets 22, a plurality of sealing strips 23, a plurality of pull handles 24, a plurality of sedimentation tanks 25 and a movable plate 26, wherein the connection relationship and the position relationship are as follows;

the top wall of the treatment box 2 is provided with a slot 20 matched with the plug-in board 17, a mounting plate 21 is arranged on the periphery of the plug-in board 17, the mounting plate 21 is provided with a plurality of connecting bolts connected with the top wall of the treatment box 2, the plurality of filter tanks 18 are through grooves 5 of a rectangular structure, a plurality of bellmouths 22 are arranged on the top ends of the plurality of filter tanks 18, a plurality of sealing strips 23 are arranged on the top ends of the plurality of filter screens 19, the plurality of sealing strips 23 are matched with the plurality of bellmouths 22, a plurality of pull handles 24 are arranged on the plurality of sealing strips 23, a plurality of sedimentation tanks 25 are respectively arranged on one side of the bottom ends of the plurality of filter tanks 18, and a movable plate 26 is arranged on the bottom surface of the plurality of sedimentation tanks 25 and has an inverted trapezoidal structure.

In the specific implementation process, through the top of the spacing and fixed mounting plate 17 of the peripheral mounting panel 21 of mounting plate 17, top surface through filter tank 18 is equipped with a plurality of sealing strips 23 and matches with a plurality of bellmouths 22, the top of filter screen 19 can be spacing, when needing to be changed filter screen 19, pull 24 pulling filter screen 19 through the pull on the filter screen 19 and break away from filter tank 18, thereby clearance and change one by one can be carried out, when needing to clear up the settling tank 25, can pull out the whole cartridge plate 17, open fly leaf 26, make accumulational tiny rubbish discharge.

In summary, the multiple filtration apparatus for sewage treatment has a simple structure, and through an integral box-type structure, the garbage with large particle size particles in the sewage is accumulated and separated by using the matching of the main shaft rotary type filtration mechanism and the blocking blanking component, and then the net type blocking mechanism and the net type replacing mechanism are matched to filter fine impurities, thereby improving the sewage treatment efficiency and reducing the volume of the sewage treatment apparatus.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. A multi-filtration device for sewage treatment comprises a water feeding pipe (1), a treatment box (2), a sewer pipe (3) and a control box (4), wherein the water feeding pipe (1) and the sewer pipe (3) are respectively arranged at two ends of the treatment box (2), and the control box (4) is installed at one side of the treatment box (2), and is characterized in that a main shaft rotary type filtration mechanism is arranged on the treatment box (2), a net type blocking mechanism is arranged at one side of the main shaft rotary type filtration mechanism, and a net type replacement mechanism is arranged on the net type blocking mechanism;

the main shaft rotary type filtering mechanism comprises: the device comprises a pair of through grooves (5), a roller (6), a rotary tooth groove (7), a driving motor (8), an adjusting gear (9), a plurality of filtering holes (10), a rotary bearing (11), a thread plate (12) and an inner protective cylinder (13);

handle case (2) both ends and seted up logical groove (5) of a pair of symmetry respectively, the both ends of cylinder (6) are inlayed respectively and are in a pair of lead to groove (5), handle case (2) and be close to water pipe (1) one end and be equipped with the seal assembly cover and locate cylinder (6) tip, the cover is equipped with rotatory tooth's socket (7) on cylinder (6), it is equipped with driving motor (8) to handle case (2) one side, be equipped with adjusting gear (9) and the meshing of adjusting tooth's socket on the drive end of driving motor (8), cylinder (6) middle section is that the annular array gathers has a plurality of filtration pore (10), cylinder (6) are equipped with shutoff unloading subassembly with the relative one end of seal assembly, handle case (2) in and be located one side logical groove (5) embedded swivel bearing (11) of being equipped with, cylinder (6) are inlayed and are located swivel bearing (11), the utility model discloses a drum, including drum (6), filter hole (10), cylinder (6) and upper hose (1), the outer cover of filter hole (10) that just is located the middle section of thick bamboo of drum (6) is equipped with thread board (12), drum (6) overcoat is equipped with interior casing (13), interior casing (13) and upper hose (1) intercommunication, thread board (12) and interior casing (13) inner wall laminating.

2. A multiple filtration apparatus for treatment of wastewater according to claim 1, wherein said mesh arresting mechanism comprises: the filter comprises a partition plate (14), a through hole (15), a pair of limiting grooves (16), an inserting plate (17), a plurality of filter grooves (18) and a plurality of filter screens (19);

handle in case (2) and be provided with division board (14) with cylinder (6) end connection, clearing hole (15) have been seted up at division board (14) center, just be located cylinder (6) tip in clearing hole (15) and be equipped with the parcel sliding ring clearing hole (15) both sides are equipped with a pair of spacing groove (16), plugboard (17) cartridge is in a pair of spacing groove (16) in and with handle case (2) bottom surface contact, a plurality of rose box (18) have been seted up to perpendicular to horizontally direction on plugboard (17), and is a plurality of rose box (18) interpolation is equipped with a plurality of filter screens (19).

3. A multiple filtration device for treatment of wastewater according to claim 1, wherein said mesh replacement means comprises: the device comprises a slot (20), a mounting plate (21), a plurality of sockets (22), a plurality of sealing strips (23), a plurality of pull handles (24), a plurality of sedimentation tanks (25) and a movable plate (26);

handle slot (20) of roof of case (2) seted up and plug-in board (17) matching, plug-in board (17) periphery is equipped with mounting panel (21), be equipped with a plurality of connecting bolt on mounting panel (21) and handle case (2) roof and be connected, a plurality of filter tank (18) are logical groove (5) of rectangle structure, and are a plurality of filter tank (18) top is equipped with a plurality of bellmouths (22), and is a plurality of filter screen (19) top is equipped with a plurality of sealing strips (23), and is a plurality of sealing strip (23) and a plurality of bellmouth (22) match, and are a plurality of be equipped with a plurality of drawing (24) on sealing strip (23), and are a plurality of filter tank (18) bottom one side is equipped with a plurality of sedimentation tank (25) respectively, and is a plurality of sedimentation tank (25) are equipped with fly leaf (26) for falling trapezium structure and bottom surface.

4. The multiple filtration apparatus for treatment of wastewater as set forth in claim 1, wherein said seal assembly comprises: the sealing sleeve (27), the sealing ring (28) and a plurality of fixing bolts (29);

handle on case (2) and be located one of them side a pair of sealing cover (27) are equipped with outward to the through-hole, be equipped with sealing ring (28) on sealing cover (27), sealing cover (27) cartridge is in this side in the through-hole, it is equipped with a plurality of through-holes to encircle sealing cover (27), and is a plurality of the through-hole is embedded to be equipped with a plurality of fixing bolt (29), and is a plurality of fixing bolt (29) are connected on handling case (2) lateral wall.

5. The multiple filtration apparatus for sewage treatment of claim 2 wherein said plug blanking assembly comprises: a plurality of extension tubes (30), a plurality of springs (31), a plurality of adjusting push rods (32), a ring plate (33) and a pair of feed openings (34);

handle case (2) middle section and be located division board (14) and the tip outer loop that is located cylinder (6) is equipped with a plurality of flexible pipes (30), and is a plurality of flexible pipe (30) are embedded to be equipped with a plurality of spring (31), and is a plurality of flexible end of flexible pipe (30) is connected through crown plate (33), the width and the cylinder (6) of crown plate (33) match with the interval of interior protective barrel (13), crown plate (33) inner and outer ring is equipped with a pair of closed ring respectively, interior protective barrel (13) tip is equipped with the closing plate and handles the laminating of case (2) inner wall, it is equipped with a pair of feed opening (34) to handle case (2) both sides wall face, and is a plurality of to adjust push rod (32) are embedded to be equipped with in flexible pipe (30).

6. The multiple filtration equipment for sewage treatment according to claim 5, wherein the treatment box (2) is a hollow shell with a rectangular structure, and a pair of feed openings (34) are arranged on two sides of the side wall of the treatment box (2) and between the end part of the inner protective cylinder (13) and the isolation plate (14).

7. The multiple filtration equipment for sewage treatment according to claim 1, wherein one end of the drum (6) exposed out of the treatment tank (2) is of a closed structure, the other end of the drum (6) is open, and the circumferential wall surfaces of the two ends of the drum (6) are not provided with the filter holes (10).

8. The multiple filtration equipment for sewage treatment as claimed in claim 2, wherein the pair of limiting grooves (16) are plates with rectangular structures, and a pair of sliding grooves matched with the width of the insertion plate (17) are formed on the opposite wall surfaces of the pair of limiting grooves (16).

9. A multiple filtration apparatus for sewage treatment according to claim 1, wherein the water supply pipe (1) is installed at an end top wall of the treatment tank (2) and communicated with the inner casing (13) through the top wall of the treatment tank (2).

10. A multiple filtration apparatus for sewage treatment according to claim 6, wherein the inner wall of the treatment tank (2) is provided with a separation plate (35), the separation plate (35) has a triangular structure and the bottom ends of both sides are connected with a pair of said feed openings (34).