CN113529922B

CN113529922B - Combined sludge removal device and sludge removal method

Info

Publication number: CN113529922B
Application number: CN202110964127.5A
Authority: CN
Inventors: 许淦超
Original assignee: Jiangxi Guojin Construction Group Co ltd
Current assignee: Jiangxi Guojin Construction Group Co ltd
Priority date: 2021-08-21
Filing date: 2021-08-21
Publication date: 2023-03-17
Anticipated expiration: 2041-08-21
Also published as: CN113529922A

Abstract

The application discloses modular silt clearing device and silt clearance method, main technical scheme is a modular silt clearing device, including wearing to establish the internal flushing pipe of pipeline, the tip of flushing pipe has the shower nozzle, the centre gripping is provided with and clears away the structure on the flushing pipe, it includes that the centre gripping is on the flushing pipe the mount pad, set up on the mount pad push away from the piece, set up on the mount pad and be used for shoveling the silt shovel of silt, the silt shovel is equipped with and is used for scraping the limit with the arc of the internal wall laminating of pipeline. The application has the following effects: silt shovel can scrape the limit through the arc, strikes off the silt on the internal wall of pipeline, and scrapes from the piece can live the silt pocket of taking up along with the final discharge pipe of motion, can clear up silt to strike off the back at silt, take off the mount pad from the flushing pipe, can not influence subsequent use of flushing pipe yet, the operability is high.

Description

Combined sludge removal device and sludge removal method

Technical Field

The application relates to the technical field of municipal pipeline cleaning, in particular to a combined sludge removing device and a sludge removing method.

Background

Generally, various drainage pipelines are arranged below urban pavements, and sludge is often accumulated in the pipelines after long-time operation.

After long-time use, need clear up the silt in the pipeline, current mode is for the cooperation has the spray washing car of big water tank, will be with the help of its washing pipe of taking certainly, and its tip has the shower nozzle, at first will spray washing car drive to corresponding pipeline road surface above, penetrate the washing pipe to the pipeline in, can jet out high-pressure rivers in the shower nozzle and break away silt.

However, when the high-pressure water is ejected, the high-pressure water is often a gathered water flow, more water flows through the sludge, and only part of the sludge can be taken away, so that more sludge still remains in the pipeline under the flushing of the water flow.

Disclosure of Invention

In order to better clear up silt, the application provides a combined silt removing device and a silt removing method.

In a first aspect, the application provides a combined sludge removing device, which adopts the following technical scheme: the utility model provides a modular silt clearing device, is including wearing to establish the internal flushing pipe of pipeline, the tip of flushing pipe has the shower nozzle, the centre gripping is provided with and clears away the structure on the flushing pipe, clear away the structure and include the centre gripping mount pad on the flushing pipe, set up the piece of pushing away from on the mount pad, set up on the mount pad and be used for shoveling the silt shovel of silt, the silt shovel is equipped with and is used for scraping the limit with the arc of the internal wall laminating of pipeline.

Through adopting the technical scheme, internal at the pipeline, install the flushing pipe centre gripping to the mount pad, can stimulate the flushing pipe this moment and drive the mount pad and carry out axial motion at the internal edge of pipeline, silt shovel can scrape the limit through the arc this moment, strike off the silt on the internal wall of pipeline, and scrape the piece and can live the silt pocket of taking up along with the final discharge pipe of motion, the global motion is comparatively simple, and can be better clear up silt, and strike off the back at silt, take off the mount pad from the flushing pipe, can not influence subsequent use of flushing pipe yet, and high operability.

Preferably, the pushing-away piece is arranged on the mounting seat in a split mode, the mounting seat is provided with a mounting channel for embedding the flushing pipe, and after the pushing-away piece is mounted on the mounting seat, the flushing pipe is pressed and fixed to the bottom of the mounting channel.

Through adopting above-mentioned technical scheme, when the installation, with the flushing pipe embedding and fix in the installation channel, then will push away when installing to the mount pad from the piece, will oppress fixed flushing pipe in step, also fixed spacing is carried out to the flushing pipe like this when the fixed piece that pushes away.

Preferably, the installation channel is divided into a first section and a second section, one end of the second section is communicated with the first section; the one end of first section is located the central axis department of mount pad, the second section is established on the mount pad along the axial and is misaligned with the central axis of mount pad, and first section is kept away from one section of mount pad center department and is extended and communicate in the second section towards the mount pad outside, first section one side of second section all communicates with the mount pad outside.

Through adopting above-mentioned technical scheme, when fixed flushing pipe, the point that the flushing pipe got into will be in the central axis department of mount pad, can be comparatively even pull to the whole, and will progressively extend to the lateral wall of mount pad at the in-process that extends on, will install comparatively conveniently, and can keep better drawing the effect of dragging.

Preferably, when the pushing-away piece is fixed to the mounting seat, the pushing-away piece and the mounting seat are respectively provided with a first abutting surface and a second abutting surface which are abutted against each other, and the second abutting surface is provided with a bulge which is embedded into the mounting channel and abutted against the flushing pipe.

Through adopting above-mentioned technical scheme, when the installation pushes away from the piece, the arch will be embedded into correspondingly in the installation channel and carry out oppression fixed to the washing pipe, and the arch can be dragging the in-process through and the installation channel the effort between the inner wall play spacing effect, can make to push away from the piece and keep original fixed position, reduce the possibility of deviating.

Preferably, the first abutting surface and the central axis of the mounting seat form an included angle, and the first section and the sludge shovel are arranged just opposite to each other.

Through adopting above-mentioned technical scheme, owing to at the in-process of dragging, the flushing pipe has the trend that breaks away from the installation channel, just will have the effort to pushing away from the piece, through setting up first butt face slope, it has trend down when receiving the pulling force, just can order about silt shovel at this moment and can support tightly on the inner wall of the pipeline body to improve the efficiency that silt was scraped.

Preferably, the second abutting surface is provided with a connecting column parallel to the pipeline body, the first abutting surface is provided with a connecting groove for embedding the connecting column, the end face of the connecting column is provided with a containing groove along the length direction, the end face of the connecting column is provided with a separating groove communicated with the containing groove and the space outside the connecting column along the length direction, the separating groove is used for forming a plurality of separating sheets by the connecting column, and the containing groove is connected with a contact block in a sliding manner, wherein the contact block is used for driving the separating sheets to tightly abut against the inner wall of the connecting groove after being expanded.

Through adopting above-mentioned technical scheme, when the installation, with spliced pole embedding to the spread groove in, the spacer will be located the spread groove this moment, and when pushing away from the piece this moment and installing to the mount pad on, the conflict piece will make each spacer expand outward at gliding in-process, will support tightly on the inner wall of spread groove this moment to form fixed effect.

Preferably, the conflict piece circumference is fixed in the storage tank, it is connected with the threaded rod that is used for with conflict piece threaded connection to push away to rotate from the piece, the cross sectional area of conflict piece is from being close to push away from the one end of piece to the other end crescent.

Through adopting above-mentioned technical scheme, after pushing away from the piece and installing to the mount pad, rotatable threaded rod for the threaded rod is connected with conflict piece, because circumference is fixed, can make conflict piece slide, during the slip, its outer wall will conflict at the end of spacer, thereby fix, and dragging the in-process, when the flush tube effect is to pushing away from on the piece, both have the trend that breaks away from, nevertheless because the existence of contact piece, it only can make the spacer support tightly more on the inner wall of spread groove, can hardly break away from.

Preferably, the mounting seat is provided with a filling box, and sand or liquid is added into the filling box.

Through adopting above-mentioned technical scheme, because in the use, holistic quality need reach a value, just can make to have sluggish effect at the in-process that pulls, also can provide corresponding stability simultaneously, so can increase the peripheral material that can place in the packing box, thereby adjust the quality, and if establish the packing box in the mount pad lower part, just can move down whole focus, make at the in-process of tractive, can not rotate almost, be convenient for it clears up silt.

Preferably, a vibration cavity is formed in the mounting seat, and a collision ball for colliding with the inner wall is freely and movably connected in the vibration cavity.

Through adopting above-mentioned technical scheme, at the in-process of pulling, because the speed of pulling is blockked by silt, its velocity of motion is inhomogeneous, leads to colliding the ball will be constantly at the motion of vibration cavity to striking the inner wall, thereby make the mount pad produce the vibration, promote the effect of silt shovel.

In a second aspect, the present application further provides a sludge cleaning method, which adopts the following technical scheme: a sludge cleaning method comprises the following steps:

s1: the flushing pipe is conveyed from one end of the pipeline body to the other end of the pipeline body, and the spray heads synchronously spray high-pressure water to preliminarily flush and disperse the sludge;

s2: embedding the flushing pipe into the mounting channel at one end extending out of the pipeline body, and fixing the pushing-away piece on the mounting seat;

s3: dragging the flushing pipe to enable the mounting seat to move together, scraping the sludge on the inner wall of the pipeline body by the sludge shovel, and pushing the sludge out of the other end of the pipeline body by the pushing-away piece;

wherein the step S2 comprises the following steps:

s2.1: closing, namely mounting the push-off piece on the mounting seat to enable the connecting column to be inserted into the connecting groove;

s2.2: the threaded rod is rotated to fix the contact block, so that the contact block is in threaded connection with the threaded rod, the contact block moves towards the position far away from one side of the pushing part, and the outer wall of the contact block can be in contact with the inner wall of the separation sheet to drive the separation sheet to expand and tightly support the inner wall of the connecting groove.

Through adopting above-mentioned technical scheme, can install on the flushing pipe through the centre gripping after high pressure water spray handles, just can shovel the silt that will be located the internal portion of pipeline through silt shovel and push away from the piece, can also be taken out the other end of the pipeline body together, the clearance effect preferred.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the washing pipe is additionally arranged on the basis of the washing pipe, so that sludge on the lower side of the pipeline can be scraped in the movement process of the washing pipe, the sludge in the pipeline can be taken out together, the sludge can be cleaned, and in actual conditions, solid impurities such as small stones can be cleaned together;

2. in the process of pulling, because the speed of pulling is blockked by silt, its velocity of motion is inhomogeneous, leads to colliding the ball and will constantly be at the motion of vibration cavity intracavity to strike the inner wall, thereby make the mount pad produce the vibration, promote the effect of silt shovel.

3. In the pulling process, a downward acting force is applied to the pushing-off piece, so that the sludge shovel is well abutted against the inner wall of the pipeline body, and the cleaning effect is better;

4. when the separating piece is pulled, if the pushing-off piece has a separation tendency, the separating piece can be more tightly pressed against the inner wall of the connecting groove under the action of the abutting block;

5. wholly when using, save time more, save the labour more, can improve the effect of clearance.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present application;

FIG. 2 is an exploded view of example 1 of the present application;

FIG. 3 is an exploded view from another perspective of example 1 of the present application;

FIG. 4 is a cross-sectional view of a connecting column in the embodiment 1 of the present application, showing a contact block;

FIG. 5 is a schematic view of the structure of the packing box with matching blocks in embodiment 1 of the present application;

FIG. 6 is a sectional view of the bottom surface of the mount base in embodiment 1 of the present application;

fig. 7 is a cross-sectional view of embodiment 2 of the present application, showing the vibration cavity and the ball plunger.

Description of reference numerals: 10. a pipe body; 100. a flush tube; 101. a spray head; 110. clearing the structure; 111. a mounting seat; 112. a push-off member; 113. shoveling the silt; 114. filling a box; 115. selecting a matching block; 116. arc scraping edges; 120. installing a channel; 121. a first stage; 122. a second stage; 123. a protrusion; 211. a first abutting surface; 212. a second abutting surface; 220. connecting columns; 221. connecting grooves; 222. a containing groove; 223. a separation tank; 224. a separator; 230. a contact block; 231. a limiting rod; 232. a threaded rod; 300. vibrating the cavity; 310. and (6) knocking the ball.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a combined type sludge removing device.

Example 1:

a combined type sludge removing device, referring to fig. 1, comprises a flushing pipe 100 arranged in a pipeline body 10 in a penetrating mode, a spray head 101 is arranged at the end portion of the flushing pipe 100, a removing structure 110 is arranged on the flushing pipe 100 in a clamping mode, the removing structure 110 comprises a mounting seat 111 clamped on the flushing pipe 100, a pushing-off piece 112 arranged on the mounting seat 111, and a sludge shovel 113 arranged on the mounting seat 111 and used for shoveling sludge, and the sludge shovel 113 is provided with an arc scraping edge 116 used for being attached to the inner wall of the pipeline body 10. The cleaning structure 110 is additionally arranged on the original flushing pipe 100, in the process of pulling the flushing pipe 100, the sludge is scraped up by the sludge shovel 113 through the arc-shaped scraping edge 116, and meanwhile, the pushing-away piece 112 can bring the sludge out of the pipeline body 10, so that a good cleaning effect is formed.

In this embodiment, the mounting seat 111 is a cylinder shape adapted to the pipe body 10, the silt shovel 113 is injection molded or fixedly mounted on the lower half side of the mounting seat 111 through a bolt, the arc scraping edge 116 is located at the end of the silt shovel 113 and is used for abutting against the inner wall of the pipe body 10, and the pushing-off member 112 is disposed on the opposite upper half side.

Referring to fig. 2 and 3, the push-off member 112 is separately provided on the mounting seat 111, the mounting seat 111 has a mounting groove 120 into which the wash pipe 100 is inserted, and the wash pipe 100 is press-fixed to the bottom of the mounting groove 120 when the push-off member 112 is mounted on the mounting seat 111. The mounting channel 120 is divided into a first section 121 and a second section 122 having one end communicating with the first section 121. One end of the first segment 121 is located at the central axis of the mounting seat 111, the second segment 122 is axially disposed on the mounting seat 111 and does not coincide with the central axis of the mounting seat 111 in the axial projection, a segment of the first segment 121 away from the center of the mounting seat 111 extends toward the outer side of the mounting seat 111 and is communicated with the second segment 122, one side of each of the first segment 121 and the second segment 122 is communicated with the outer side of the mounting seat 111, and the mounting channel 120 coincides with the central axis of the mounting seat 111 in the radial projection. So that when the flush tube 100 is inserted into the mounting channel 120 it will pass from the end where the silt scoop 113 is located and extend towards the edge of the mounting 111 and then axially into the second section 122, and the spray head 101 will be located at the end of the mounting 111 remote from the spray head 101.

After the push-off element 112 is mounted, the flushing pipe 100 can be held by pressing force, while the spray head 101 can serve as a safety element which, after slipping, can be used to abut against the mounting 111.

When the push-off piece 112 is fixed on the mounting seat 111, the push-off piece 112 and the mounting seat 111 respectively have a first abutting surface 211 and a second abutting surface 212 which abut against each other, and the second abutting surface 212 has a protrusion 123 which is inserted into the mounting groove channel 120 and abuts against the flushing pipe 100. The shape of the protrusion 123 is integrally adapted to the mounting channel 120, and the protrusion will fit the inner wall of the mounting channel 120 after being inserted into the mounting channel 120. In this embodiment, the first abutting surface 211 and the central axis of the mounting seat 111 are arranged at an included angle, that is, are arranged obliquely, and meanwhile, the first section 121 and the sludge shovel 113 are arranged just opposite to each other, so that in the dragging process, the flushing pipe 100 will act on the protrusion 123, and has a tendency of inclining the whole mounting seat 111 towards one side of the sludge shovel 113, and at this time, the sludge shovel 113 will abut against the inner wall of the pipeline body 10, so that sludge can be better scraped.

Referring to fig. 3, as shown in fig. 4, in order to mount the push-off member 112 on the mounting seat 111, the mounting seat 111 has two connection posts 220 parallel to the pipe body 10, and in this embodiment, two connection posts 220 are symmetrically disposed on the second abutting surface 212. The push-off piece 112 and the second abutting surface 212 are provided with a connecting groove 221 for the connecting column 220 to be embedded in, the end surface of the connecting column 220 is provided with a containing groove 222 along the length direction, the end surface of the connecting column 220 is provided with a plurality of separating grooves 223 along the length direction, the separating grooves 223 are communicated with the containing groove 222 and the space outside the connecting column 220, the separating grooves 223 are arranged along the circumferential direction, the connecting column 220 is formed into a plurality of separating sheets 224 by the separating grooves 223, the outer walls of the separating sheets 224 are flush with the outer wall of the connecting column 220, and the thickness of the inner wall of each separating sheet 224 radially extends into the containing groove 222.

Referring to fig. 2 and 4, the receiving groove 222 is slidably connected with a contact block 230 for driving the separating sheet 224 to expand outward and then tightly contact against the inner wall of the connecting groove 221, the cross-sectional area of the contact block 230 gradually increases from one end close to the push-away piece 112 to the other end, in this embodiment, the contact block 230 is circular truncated cone-shaped, the contact block 230 is circumferentially fixed in the receiving groove 222, and two limiting rods 231 penetrating through the contact block 230 are disposed at the bottom of the receiving groove 222. The accessory block is connected with a threaded rod 232 in a rotating mode, the threaded rod 232 is in threaded connection with the abutting block 230, the threaded rod 232 is coaxial with the accommodating groove 222, when the accessory block is combined to the installation base 111, the connection column 220 can be embedded into the connection groove 221, the threaded rod 232 can be screwed into the abutting block 230 through rotation of the threaded rod 232, at the moment, the abutting block 230 can move towards one side of the separation sheet 224 due to the fact that the abutting block 230 is limited in the accommodating groove 222 in the circumferential direction, and when the outer wall of the abutting block 230 abuts against the separation sheet 224, the separation sheet 224 is driven to expand outwards and abuts against the inner wall of the connection groove 221 to form fixation.

When the push-off piece 112 and the mounting seat 111 have a tendency to separate during pulling, the interference block 230 will have the same tendency, and the resisting force of the separating sheet 224 will be increased due to the outward expansion, so that the separating sheet is hardly separated.

In another embodiment, referring to fig. 5, a hollow structure is formed on the upper side of the mounting seat 111 to form a filling box 114, in which sand or liquid can be added for weighting. In order to maintain the entire non-rotation state, the center of gravity of the entire body may be moved downward, and the filling tank 114 may be provided under the mounting seat 111 so that the sludge shovel 113 may be kept in contact with the bottom of the pipe body 10 during use.

Referring to fig. 6, the bottom of the mounting seat 111 may also be arranged in a plane, so that edges on two sides of the plane of the bottom can contact with the inner wall of the pipe body 10, and circumferential limitation is achieved.

Referring to fig. 5, the push-off member 112 and the sludge shovel 113 are both disposed at one end of the mounting base 111, and in order to adapt to the pipe bodies 10 with different pipe diameters, an optional block 115 is fixed at the other end of the mounting base 111 through a bolt, and the diameter of the optional block 115 is adapted to the pipe body 10, so that the whole body can be better adapted to the inner diameter of the pipe body 10, and the push-off member 112 and the sludge shovel 113 can be positioned.

The implementation principle of the embodiment 1 of the application is as follows: the flush tube 100 is first inserted into the mounting channel 120 so that the spray head 101 is located on the side of the mounting block 111 remote from the silt shovel 113, and then the push-off member 112 and the mounting block 111 are mated, the first abutment surface 211 and the second abutment surface 212 approach each other, and at this time the connecting post 220 will be inserted into the connecting groove 221. Then, the screw rod 232 is rotated to make the contact block 230 engage with it, and the contact block 230 will move toward the side close to the pushing-away part 112 due to the circumferential limit, and will collide against the inner wall of the separating sheet 224, so that the separating sheet 224 expands outward to be fixed.

Example 2:

the difference from the embodiment 1 is that, referring to fig. 7, a vibration cavity 300 is provided in the mounting seat 111, a ball 310 for hitting the inner wall is freely movably connected in the vibration cavity 300, the moving speed of the whole body is not uniform due to the obstruction of the sludge during the whole pulling process, and the ball 310 will continuously rock in the vibration cavity 300 due to the inertial force, and will cause vibration when hitting the inner wall, and in order to mainly concentrate the vibration at the sludge shovel 113, the bottom surface of the vibration cavity 300 can also be inclined and will incline downwards towards the sludge shovel 113 side, so that the ball 310 can have the tendency of hitting towards the sludge shovel 113 side all the time. The vibrating cavity 300 in this embodiment extends in a direction parallel to the central axis of the pipe body 10 and has a width slightly larger than the ball 310, so that the ball 310 moves only in the direction of the central axis and strikes the inner wall of the side of the shovel 113 as much as possible.

In other embodiments, the vibration cavity 300 may be widened to increase the turbulence of the ball 310 after impact, and in order to further increase the turbulence, the ball 310 or the inner wall of the vibration cavity 300 may be uneven, so that the ball 310 may also increase the turbulence after impact.

Based on the combined sludge removal device of embodiment 1, the embodiment of the application also discloses a sludge removal method, which comprises the following steps:

s1: the washing pipe 100 is transmitted from one end of the pipeline body 10 to the other end, and the spray head 101 is synchronously enabled to spray high-pressure water, so that sludge is preliminarily washed away;

s2: inserting the flushing pipe 100 into the mounting channel 120 at the end protruding out of the pipe body 10 and fixing the push-off piece 112 to the mounting seat 111;

s3: dragging the flushing pipe 100 so that the mounting seat 111 follows, at this time, the sludge shovel 113 scrapes the sludge on the inner wall of the pipe body 10, and the push-off member 112 can push the sludge out of the other end of the pipe body 10;

wherein, step S2 includes the following steps:

s2.1: involution, the pushing-off piece 112 is installed on the installation seat 111, so that the connection column 220 is inserted into the connection groove 221;

s2.2: when the screw rod 232 is fixed, the contact block 230 is screwed to the screw rod 232, and the contact block 230 moves away from the push-away piece 112, the outer wall of the contact block 230 will contact the inner wall of the separation blade 224, so as to drive the separation blade 224 to expand and tightly contact the inner wall of the connection groove 221.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A combined sludge removing device comprises a flushing pipe (100) arranged in a pipeline body (10) in a penetrating way, wherein a spray head (101) is arranged at the end part of the flushing pipe (100), and the combined sludge removing device is characterized in that: the cleaning structure (110) is clamped on the flushing pipe (100), the cleaning structure (110) comprises a mounting seat (111) clamped on the flushing pipe (100), a pushing-off piece (112) arranged on the mounting seat (111), and a sludge shovel (113) arranged on the mounting seat (111) and used for shoveling sludge, and the sludge shovel (113) is provided with an arc scraping edge (116) used for being attached to the inner wall of the pipeline body (10);

a vibration cavity (300) is arranged in the mounting seat (111), and a collision ball (310) for colliding with the inner wall is freely and movably connected in the vibration cavity (300);

the pushing-off piece (112) is arranged on the mounting base (111) in a split mode, the mounting base (111) is provided with a mounting channel (120) for the flushing pipe (100) to be embedded in, and after the pushing-off piece (112) is mounted on the mounting base (111), the flushing pipe (100) is pressed and fixed to the bottom of the mounting channel (120);

the mounting channel (120) is divided into a first section (121) and a second section (122) with one end communicated with the first section (121);

one end of the first section (121) is located at the central axis of the mounting seat (111), the second section (122) is axially arranged on the mounting seat (111) and is not coincident with the central axis of the mounting seat (111), one section of the first section (121) far away from the center of the mounting seat (111) extends towards the outer side of the mounting seat (111) and is communicated with the second section (122), and one sides of the first section (121) and the second section (122) are communicated with the outer side of the mounting seat (111);

when the pushing-off piece (112) is fixed on the mounting seat (111), the pushing-off piece (112) and the mounting seat (111) are respectively provided with a first abutting surface (211) and a second abutting surface (212) which are abutted against each other, and the second abutting surface (212) is provided with a protrusion (123) which is embedded into the mounting channel (120) and abutted against the flushing pipe (100).

2. The combined sludge removal device of claim 1, wherein: the first abutting surface (211) and the central axis of the mounting seat (111) form an included angle, and the first section (121) and the silt shovel (113) are arranged just opposite to each other.

3. The combined sludge removal device of claim 1, wherein: the connecting column (220) parallel to the pipeline body (10) is arranged on the second abutting surface (212), a connecting groove (221) for embedding the connecting column (220) is formed in the first abutting surface (211), a containing groove (222) is formed in the end surface of the connecting column (220) along the length direction, a separating groove (223) communicated with the containing groove (222) and the space outside the connecting column (220) is formed in the end surface of the connecting column (220) along the length direction, the connecting column (220) is formed into a plurality of separating sheets (224) by the separating grooves (223), and a contact block (230) used for driving the separating sheets (224) to expand outwards and then tightly abut against the inner wall of the connecting groove (221) is connected in a sliding mode in the containing groove (222).

4. A combined sludge removal device as claimed in claim 3, wherein: the contact block (230) is circumferentially fixed in the accommodating groove (222), the push-away piece (112) is rotatably connected with a threaded rod (232) which is in threaded connection with the contact block (230), and the cross-sectional area of the contact block (230) is gradually increased from one end close to the push-away piece (112) to the other end.

5. The combined sludge removal device of claim 1, wherein: the mounting seat (111) is provided with a filling box (114), and sand or liquid is added into the filling box (114).

6. A sludge cleaning method is realized by using the combined sludge cleaning device of claim 4, and is characterized in that: the method comprises the following steps:

s1: the flushing pipe (100) is transmitted from one end of the pipeline body (10) to the other end, and the spray head (101) is synchronously enabled to spray high-pressure water to preliminarily flush and disperse the sludge;

s2: inserting the flush tube (100) into the mounting channel (120) at the end of the protruding pipe body (10) and fixing the push-off piece (112) to the mounting seat (111);

s3: dragging the flushing pipe (100) to enable the mounting seat (111) to move together, wherein the sludge shovel (113) scrapes the sludge on the inner wall of the pipeline body (10) at the moment, and the pushing-off piece (112) can push the sludge out of the other end of the pipeline body (10);

wherein the step S2 includes the steps of:

s2.1: involutory, the push-off piece (112) is installed on the installation seat (111), so that the connecting column (220) is inserted into the connecting groove (221);

s2.2: and fixing and rotating the threaded rod (232) to enable the abutting block (230) to be in threaded connection with the threaded rod (232), wherein the abutting block (230) moves towards the side far away from the pushing-away piece (112), and the outer wall of the abutting block (230) abuts against the inner wall of the separating sheet (224) to drive the separating sheet (224) to expand outwards and abut against the inner wall of the connecting groove (221).