CN112705446A - Urban sewer pipeline anticorrosion process method - Google Patents
Urban sewer pipeline anticorrosion process method Download PDFInfo
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- CN112705446A CN112705446A CN202011512985.8A CN202011512985A CN112705446A CN 112705446 A CN112705446 A CN 112705446A CN 202011512985 A CN202011512985 A CN 202011512985A CN 112705446 A CN112705446 A CN 112705446A
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- plate
- frame
- fixedly connected
- wall
- sewer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
- B05D7/225—Coating inside the pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Sewage (AREA)
Abstract
The invention discloses an anticorrosion process method for urban sewer lines, wherein liquid spraying equipment in the method comprises a bottom plate, supporting plates are arranged at positions, close to the front side and the rear side, of the top of the bottom plate, two power rollers are arranged at the top of the bottom plate, the distance between the two power rollers is gradually increased towards the top, and a strickle spraying device is inserted into the tops of the two supporting plates; according to the invention, before the spray head sprays liquid, the scraper scrapes the inner wall of the sewer pipe, so that the anti-corrosion treatment effect is ensured; the clearance that the scraper scraped down can gather on the scraper surface afterwards, and partly clearance can enter into the frame is accepted to the sunken formation in scraper middle part in, and the height of accepting the inboard bottom of frame diminishes to the front and back side by the middle part gradually, therefore the clearance that falls to accepting in the frame is along accepting the inboard bottom landing of frame to spill hole department, drops to the sewer pipe outside from spill hole department, has realized dropping fast of clearance.
Description
Technical Field
The invention belongs to the technical field of pipeline corrosion prevention, and particularly relates to an urban sewer pipeline corrosion prevention process method.
Background
Along with economic development, domestic and production sewage discharge is increasing day by day, and great pressure is brought to the environment. One important component causing pollution in domestic and production sewage is sulfide, sulfate in the water can be reduced into sulfide by Sulfate Reducing Bacteria (SRB), and the sulfide emission can cause the following problems: firstly, the sulfide (such as hydrogen sulfide) can corrode the concrete of the sewage pipeline; secondly, hydrogen sulfide is used as a toxic gas, so that the sewer staff is dangerous; the secondary hydrogen sulfide has obvious odor and has adverse effect on production and life. Several factors in wastewater including pollutant composition, biofilm, sediment, temperature, air, etc. are related to the evolution of sulfides. In addition, the pH of the wastewater is also an important pollution-related factor. Eutrophication of water bodies causes pH drop, which not only causes increase of sulfides, but also increases of heavy metal activity, which leads to increased risk of diseases such as bone pain. The main method for solving the sulfide corrosion of the sewer pipe is to add an epoxy resin layer on the wall of the sewer pipe. The epoxy layer is generally used on the inner wall of the sewer pipe.
Because current sewer pipe is when production, the position that corresponds mould seam crossing on its inner wall has protrusion or debris, behind spraying epoxy liquid, the protrusion or the debris of its inner wall drop, can be together drop with epoxy liquid, cause the not epoxy layer of formation here, and then can take the lead to here to receive the corruption, slowly corrode all around afterwards, cause the area of corroding bigger and bigger, lead to inside anticorrosive coating to damage.
Therefore, it is necessary to provide an anticorrosion process for urban sewer pipes to solve the above problems, which can treat uneven parts when spraying epoxy resin liquid to prevent surface objects from falling off and affecting anticorrosion effect.
Disclosure of Invention
Aiming at the problems, the invention provides an urban sewer pipeline anticorrosion process method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an urban sewer pipeline anticorrosion process method comprises the following steps:
s1: compacting the edge of the foundation pit of the embedded pipeline, mixing the embedded soil with lime powder, and performing air drying treatment;
s2: hoisting the sewer pipe to a liquid spraying device through a crane, leveling the inner wall of the sewer pipe through the liquid spraying device, and spraying epoxy resin liquid on the inner wall of the sewer pipe in the leveling process to form a compact epoxy resin coating on the inner wall of the sewer pipe;
s3: placing the sewer pipe processed in the step S2 outside a vacant and windy room, ventilating for 3-5 days, and then hoisting the sewer pipe into a foundation pit;
s4: covering the sewer pipeline in the step S3 by the pre-buried soil subjected to the air drying treatment in the step S1, and rolling and flattening by a compression roller to realize the internal and external dual anti-corrosion treatment of the sewer pipeline;
the liquid spraying equipment in the S2 comprises a bottom plate, wherein supporting plates are arranged at positions, close to the front side and the rear side, of the top of the bottom plate, two power rollers are arranged at the top of the bottom plate, the distance between the two power rollers is gradually increased towards the top, a scraping and spraying device is inserted into the tops of the two supporting plates, and the scraping and spraying device is fixed on the supporting plates through bolts;
the strickle spraying device comprises a supporting shaft, two ends of the supporting shaft are fixedly connected with side plates, and the bottom ends of the side plates are inserted into the supporting plate and are in threaded connection with bolts; the device comprises a support shaft, a scraper, a plurality of spray heads, a liquid distribution pipe, a liquid spraying pump and a liquid distribution pipe, wherein the scraper is fixedly connected to one side of the bottom of the support shaft, the plurality of spray heads are fixedly connected to the other side of the bottom of the support shaft, the top of each spray head is connected with a connecting pipe, the top ends of the plurality of connecting pipes are connected with the liquid distribution pipe, the liquid distribution pipe; the scraper slope sets up, and scraper middle part undercut forms and accepts the frame, and accepts the height of the inboard bottom of frame and diminish to the front and back side by the middle part gradually, and accept and all seted up on the lateral wall around the frame and leak the hole.
As a specific embodiment of the invention, a plurality of through grooves are arranged on the side wall of the bearing frame close to the spray head, the through grooves are uniformly distributed at intervals along the bottom of the inner wall of the bearing frame, vertical rods are arranged in the through grooves, two ends of each vertical rod are fixedly connected with the bearing frame, a shifting plate is sleeved on the vertical rod, a torsional spring is arranged between the vertical rod and the shifting plate, the bottom surface of the shifting plate is contacted with the bottom of the inner wall of the bearing frame, the side wall of the bearing frame close to the spray head is fixedly connected with a plurality of air injection components which are in one-to-one correspondence with the plurality of shifting plates, the air injection assembly comprises a strip-shaped frame, a pushing plate matched with the strip-shaped frame is arranged in the strip-shaped frame, one surface, close to the corresponding shifting plate, of the pushing plate is fixedly connected with a connecting rod, the connecting rod penetrates through the strip-shaped frame and is connected with a contact plate, and the other surface of the shifting plate is fixedly connected with a return spring which is fixedly connected with the strip-shaped frame; one side of the strip-shaped frame, which is close to the spray head, is communicated with a spray head, and the spray head gradually inclines towards the adjacent supporting plate.
Preferably, the shifting plate is located inside the bearing frame and provided with a bearing groove, a sealing plate is arranged at one end, away from the middle part of the bearing frame, of the bearing groove, a sealing spring is fixedly connected to one surface, close to the bearing groove, of the sealing plate, one end of the sealing spring is fixedly connected with a cross rod, and the cross rod is fixedly connected to the groove wall of the bearing groove.
Preferably, a transverse plate is inserted into the shifting plate at the bottom of the receiving groove and fixedly connected with the sealing plate, the height of the transverse plate is gradually reduced from the middle of the transverse plate to the two ends of the shifting plate, and a vertically arranged leak hole is formed in the surface of the transverse plate in a penetrating mode.
Preferably, the bottom of the supporting plate is in threaded connection with an adjusting shaft, and the bottom of the adjusting shaft is in threaded connection with the bottom plate.
Preferably, one surface of the shifting plate, which is close to the middle of the bearing frame, is fixedly connected with a plugging pad, the plugging pad is close to the through groove, and the plugging pad is used for plugging the through groove.
Preferably, two power rollers are symmetrically arranged around the supporting shaft, and the surfaces of the power rollers are subjected to sanding treatment.
The invention has the technical effects and advantages that:
1. according to the invention, before the spray head sprays liquid, the scraper scrapes the inner wall of the sewer pipe, and then the liquid sprayed by the spray head is sprayed on the inner wall of the sewer pipe subjected to the scraping treatment, so that the anti-corrosion treatment effect is ensured; then, cleaning matters scraped by the scraper can be gathered on the surface of the scraper, part of the cleaning matters can enter a bearing frame formed by the downward sinking of the middle part of the scraper, and the height of the bottom of the inner side of the bearing frame is gradually reduced from the middle part to the front side and the rear side, so that the cleaning matters falling into the bearing frame slide to a leakage hole along the bottom of the inner side of the bearing frame and fall to the outer side of a sewer pipe from the leakage hole, and the cleaning matters can quickly fall;
2. according to the invention, the cleaning matter falls into the bearing frame and slides along the bottom of the inner wall of the bearing frame, the cleaning matter can push the shifting plate to rotate in the sliding process, so that the shifting plate deflects around the vertical rod, the shifting plate deflects to push the contact plate at the other end of the shifting plate, the contact plate pushes the connecting rod, the connecting rod can push the pushing plate, the pushing plate can extrude gas in the strip-shaped frame through the air nozzle, the inner wall of a sewer pipe to be sprayed at the bottom of the nozzle is just cleaned, the cleaned particle residue is prevented, and the anti-corrosion treatment effect is further ensured;
3. according to the invention, a part of cleaning materials can be contained in the bearing groove, and finally the amount of the cleaning materials stored in the bearing frame is increased, when the shifting plate deflects, the cleaning materials in the bearing groove can push the sealing plate to open, the cleaning materials in the bearing groove can fall from the bearing groove, when the shifting plate returns, the sealing spring can rapidly pull the sealing plate back to the original position, so that a part of cleaning materials remain in the bearing groove, the restoring speed of the torsion spring can be reduced, the returning speed of the return spring is reduced, the suck-back strength of the air nozzle is weakened, and the situation that the blown away particles cannot return is ensured;
4. according to the bearing frame, the transverse plate connected to the sealing plate can play a bearing role on the cleaning objects, the cleaning objects can fall onto the transverse plate firstly, the cleaning objects with smaller particle sizes can fall onto the bottom of the inner wall of the bearing frame through the leakage holes firstly, a protective layer is formed on the bottom of the inner wall, and then the protective layer with larger particle sizes can be smashed on the protective layer formed by the cleaning objects with smaller particle sizes when falling, so that the inner wall of the bearing frame is protected.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a main sectional view of a liquid ejection apparatus used in the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is a top view of the bearing frame of the present invention taken along the plane of the top surfaces of the plurality of pulling plates as a cut plane;
FIG. 5 is an enlarged view of portion B of FIG. 4 according to the present invention;
FIG. 6 is a side sectional view of the adaptor frame of the present invention;
FIG. 7 is an enlarged view of the portion C of FIG. 6 according to the present invention;
FIG. 8 is a schematic view of the positioning of the dial plate and the closing plate of the present invention;
FIG. 9 is a perspective view of the cross board of the present invention.
In the figure: the device comprises a bottom plate 1, a supporting plate 2, a power roller 3, a strickle spraying device 4, a supporting shaft 41, a side plate 42, a scraper 43, a spray head 44, a connecting pipe 45, a liquid distribution pipe 46, a liquid spraying pump 47, a bearing frame 48, a leakage hole 49, a bolt 5, a through groove 6, a vertical rod 7, a shifting plate 8, an air injection assembly 9, a strip-shaped frame 91, a pushing plate 92, a connecting rod 93, a contact plate 94, a return spring 95, an air injection head 96, a bearing groove 10, a sealing plate 11, a sealing spring 12, a cross rod 13, a transverse plate 14, a leakage hole 15, an adjusting shaft 16 and a plugging pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an urban sewer pipeline anticorrosion process method as shown in figures 1-9, which comprises the following steps:
s1: compacting the edge of the foundation pit of the embedded pipeline, mixing the embedded soil with lime powder, and performing air drying treatment; after the edge of the foundation pit is compacted, the airtightness in the casing can be ensured, the air content can be reduced, the breeding of bacteria is reduced, meanwhile, after the lime powder is mixed in the pre-buried soil, the pre-buried soil can be sterilized, the sterilization effect is further improved, and after the lime powder is dried in the air, the water content in the pre-buried soil is reduced, and the breeding of bacteria is reduced;
s2: hoisting the sewer pipe to a liquid spraying device through a crane, leveling the inner wall of the sewer pipe through the liquid spraying device, and spraying epoxy resin liquid on the inner wall of the sewer pipe in the leveling process to form a compact epoxy resin coating on the inner wall of the sewer pipe; leveling the inner wall of the sewer pipeline by using liquid spraying equipment to prevent the protrusions or impurities on the inner wall from falling off after spraying the epoxy resin liquid, so that an epoxy resin layer is not formed at the position;
s3: placing the sewer pipe processed in the step S2 outside a vacant and windy room, ventilating for 3-5 days, and then hoisting the sewer pipe into a foundation pit; the epoxy resin liquid can be fully dried and the epoxy resin layer can be better molded by ventilating for 3-5 days in open and windy outdoor;
s4: covering the sewer pipeline in the step S3 by the pre-buried soil subjected to the air drying treatment in the step S1, and rolling and flattening by a compression roller to realize the internal and external dual anti-corrosion treatment of the sewer pipeline;
the liquid spraying device in the S2 comprises a bottom plate 1, supporting plates 2 are arranged at positions, close to the front side and the rear side, of the top of the bottom plate 1, two power rollers 3 are arranged at the top of the bottom plate 1, the distance between the two power rollers 3 is gradually increased towards the top, a strickle spraying device 4 is inserted into the tops of the two supporting plates 2, and the strickle spraying device 4 is fixed on the supporting plates 2 through bolts 5;
the strickle spraying device 4 comprises a support shaft 41, two ends of the support shaft 41 are fixedly connected with side plates 42, and the bottom ends of the side plates 42 are inserted in the support plate 2 and are in threaded connection with bolts 5; a scraper 43 is fixedly connected to one side of the bottom of the support shaft 41, a plurality of spray heads 44 are fixedly connected to the other side of the bottom of the support shaft 41, connecting pipes 45 are connected to the tops of the spray heads 44, a liquid distribution pipe 46 is connected to the top ends of the connecting pipes 45, the liquid distribution pipe 46 is installed at the top of the support shaft 41, one end of the liquid distribution pipe 46 is a closed end, and the other end of the liquid distribution pipe 46 is connected with a; the scraper 43 is obliquely arranged, the middle of the scraper 43 is recessed downwards to form a bearing frame 48, the height of the inner bottom of the bearing frame 48 is gradually reduced from the middle to the front side and the rear side, and the front side wall and the rear side wall of the bearing frame 48 are provided with escape holes 49.
As a specific embodiment of the invention, a plurality of through grooves 6 are formed on the side wall of the receiving frame 48 close to the spray nozzle 44, the plurality of through grooves 6 are uniformly distributed at intervals along the bottom of the inner wall of the receiving frame 48, vertical rods 7 are arranged in the plurality of through grooves 6, both ends of each vertical rod 7 are fixedly connected with the receiving frame 48, a shifting plate 8 is sleeved on each vertical rod 7, a torsion spring is arranged between each vertical rod 7 and the shifting plate 8, the bottom surface of each shifting plate 8 is contacted with the bottom of the inner wall of the receiving frame 48, a plurality of air injection assemblies 9 are fixedly connected on the side wall of the receiving frame 48 close to the spray nozzle 44, the plurality of air injection assemblies 9 are in one-to-one correspondence with the plurality of shifting plates 8, each air injection assembly 9 comprises a strip-shaped frame 91, a pushing plate 92 matched with the strip-shaped frame 91 is arranged in the strip-shaped frame 91, a connecting rod 93 is fixedly connected on one surface of the pushing plate, a return spring 95 is fixedly connected to the other surface of the shifting plate 8, and the return spring 95 is fixedly connected with the strip-shaped frame 91; one surface of the strip-shaped frame 91 close to the spray head 44 is communicated with a spray head 96, and the spray head 96 gradually inclines towards the adjacent support plate 2; when the clearance drops inside the accepting frame 48, can be along accepting frame 48 inner wall bottom slip, the clearance is at the slip in-process, can promote to dial board 8 and rotate, make and dial board 8 and deflect round vertical pole 7, dial board 8 deflection and can promote its other end's contact plate 94, contact plate 94 promotes connecting rod 93, connecting rod 93 can promote push plate 92, push plate 92 passes through jet 96 extrusion with the gas in the bar frame 91, just in time clear up the sewer pipe inner wall that will want the spraying bottom shower nozzle 44, prevent that there is the particle after the clearance to remain, anticorrosive treatment effect has further been guaranteed.
As a specific embodiment of the present invention, a receiving groove 10 is formed on the shifting plate 8 located inside the receiving frame 48, a closing plate 11 is arranged at one end of the receiving groove 10 away from the middle portion of the receiving frame 48, a closing spring 12 is fixedly connected to one surface of the closing plate 11 close to the receiving groove 10, one end of the closing spring 12 is fixedly connected to a cross rod 13, and the cross rod 13 is fixedly connected to a groove wall of the receiving groove 10; in order to guarantee the intensity of dialling board 8, consequently, the thickness of dialling board 8 is great, thicker dialling board 8 has occupied and has accepted more volume in the frame 48, consequently seted up on dialling board 8 and accepted groove 10, and through the shutoff of shrouding 11, it can hold some clearance to accept groove 10, the volume of the clearance that finally makes and accept the interior storage of frame 48 is more, and when dialling board 8 deflection, the clearance in accepting groove 10 can promote shrouding 11 and open, inside clearance can drop from accepting groove 10, when dialling board 8 return, sealing spring 12 can spur shrouding 11 fast and return to the normal position, make and leave some clearance in accepting groove 10, and then can make the recovery speed of torsional spring slow down, and then make return spring 95's return speed slow down, the intensity that jet 96 department's resorption, guarantee to blow and the particle of keeping away from can not move back.
As a specific embodiment of the invention, a transverse plate 14 is inserted into the shifting plate 8 at the bottom of the receiving groove 10, the transverse plate 14 is fixedly connected with the closing plate 11, the height of the transverse plate 14 gradually decreases from the middle part thereof to the two ends of the shifting plate 8, and a vertically arranged leak hole 15 penetrates through the surface of the transverse plate 14; when shrouding 11 is opened, when accepting the clearance roll-off in the groove 10, diaphragm 14 of connecting on shrouding 11 can play the effect of accepting to the clearance, the clearance can take lead to drop on diaphragm 14, the clearance that the granularity is less can take lead to drop on accepting 48 inner wall bottoms through small opening 15, form the one deck protective layer on the inner wall bottom, when the great protective layer of granularity drops afterwards, can pound on the protective layer that the clearance that the granularity is less formed, and then play the guard action to accepting 48 inner walls of frame.
As a specific embodiment of the invention, the bottom of the supporting plate 2 is in threaded connection with an adjusting shaft 16, and the bottom of the adjusting shaft 16 is in threaded connection with the bottom plate 1; the height of the supporting plate 2 needs to be adjusted to adapt the strickle spraying device 4 to sewer pipes of different sizes.
In an embodiment of the present invention, a plugging pad 17 is fixedly connected to one surface of the poking plate 8 close to the middle of the receiving frame 48, the plugging pad 17 is close to the through groove 6, and the plugging pad 17 is used for plugging the through groove 6.
As a specific embodiment of the present invention, two of the power rollers 3 are symmetrically arranged about the support shaft 41, and the surfaces of the power rollers 3 are subjected to a sanding treatment; the power roller 3 can improve the friction between the power roller and a sewer pipeline after being subjected to frosting treatment, and further ensures the rotating effect on the sewer pipeline.
The working principle of the invention is as follows:
referring to the attached drawings 1-9 of the specification, when the existing sewer pipe is produced, the positions of the inner walls of the sewer pipe, which correspond to the joints of the dies, are provided with bulges or sundries, after the epoxy resin liquid is sprayed, the bulges or sundries on the inner walls of the sewer pipe fall off and can be together with the epoxy resin liquid to fall off, so that an epoxy resin layer is not formed at the positions, and further, the positions are corroded at first and then slowly corroded to the periphery, so that the corrosion area is larger and larger, and the corrosion-resistant layer in the sewer pipe is damaged, therefore, the invention mainly solves the problem that when the epoxy resin liquid is sprayed, the uneven positions are treated, the surface objects are prevented from falling off, and the corrosion-resistant effect; the specific measures and the using process are as follows: firstly, hoisting a sewer pipe onto two power rollers 3 by a crane, then plugging a strickle spraying device 4 into the sewer pipe, inserting a side plate 42 on a support plate 2 in an inserting manner, and then fixing the side plate 42 on the support plate 2 by bolts 5; then, the liquid spraying pump 47 is externally connected with epoxy resin liquid, the two power rollers 3 are started to work in the same direction, the power rollers 3 drive the sewer pipeline to rotate, the liquid spraying pump 47 pumps the epoxy resin liquid to enter the liquid distributing pipe 46 and then enter the connecting pipe 45, and finally the epoxy resin liquid is sprayed out from the spray head 44 to carry out liquid spraying treatment on the inner wall of the sewer pipeline, when the spray head 44 sprays liquid in the rotating process of the sewer pipeline, the scraper 43 carries out scraping treatment on the inner wall of the sewer pipeline, and then the liquid sprayed out from the spray head 44 is sprayed on the inner wall of the sewer pipeline subjected to scraping treatment, so that the anticorrosive treatment effect is ensured; then, the cleaning materials scraped by the scraper 43 can be gathered on the surface of the scraper 43, part of the cleaning materials can enter the bearing frame 48 formed by the downward sinking of the middle part of the scraper 43, the height of the inner side bottom of the bearing frame 48 gradually becomes smaller from the middle part to the front side and the rear side, so that the cleaning materials falling into the bearing frame 48 slide to the leakage hole 49 along the inner side bottom of the bearing frame 48, and fall to the outer side of the sewer pipe from the leakage hole 49, the cleaning materials can quickly fall off, finally, after the sewer pipe is rotated for multiple circles, the scraping and spraying device 4 is detached, the finished sewer pipe is lifted out again through a crane, and the inner wall anticorrosion treatment of the sewer pipe is realized.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. An anticorrosion process method for urban sewer pipelines is characterized in that: the method comprises the following steps:
s1: compacting the edge of the foundation pit of the embedded pipeline, mixing the embedded soil with lime powder, and performing air drying treatment;
s2: hoisting the sewer pipe to a liquid spraying device through a crane, leveling the inner wall of the sewer pipe through the liquid spraying device, and spraying epoxy resin liquid on the inner wall of the sewer pipe in the leveling process to form a compact epoxy resin coating on the inner wall of the sewer pipe;
s3: placing the sewer pipe processed in the step S2 outside a vacant and windy room, ventilating for 3-5 days, and then hoisting the sewer pipe into a foundation pit;
s4: covering the sewer pipeline in the step S3 by the pre-buried soil subjected to the air drying treatment in the step S1, and rolling and flattening by a compression roller to realize the internal and external dual anti-corrosion treatment of the sewer pipeline;
the liquid spraying device in the S2 comprises a bottom plate (1), supporting plates (2) are arranged at positions, close to the front side and the rear side, of the top of the bottom plate (1), two power rollers (3) are arranged at the top of the bottom plate (1), the distance between the two power rollers (3) is gradually increased towards the top, a scraping and spraying device (4) is inserted into the tops of the two supporting plates (2), and the scraping and spraying device (4) is fixed on the supporting plates (2) through bolts (5);
the strickle spraying device (4) comprises a support shaft (41), two ends of the support shaft (41) are fixedly connected with side plates (42), and the bottom ends of the side plates (42) are inserted into the support plate (2) and are in threaded connection with bolts (5); a scraper (43) is fixedly connected to one side of the bottom of the supporting shaft (41), a plurality of spray heads (44) are fixedly connected to the other side of the bottom of the supporting shaft (41), connecting pipes (45) are connected to the tops of the spray heads (44), liquid distributing pipes (46) are connected to the top ends of the connecting pipes (45), the liquid distributing pipes (46) are installed on the top of the supporting shaft (41), one end of each liquid distributing pipe (46) is a closed end, and the other end of each liquid distributing pipe is connected with a liquid spraying pump (; scraper (43) slope sets up, and scraper (43) middle part undercut forms and accepts frame (48), and accepts the height of the inboard bottom of frame (48) and diminishes to the front and back side by the middle part gradually, and accepts and all seted up on frame (48) the front and back lateral wall and leak hole (49).
2. The urban sewer pipeline anticorrosion process method according to claim 1, wherein: the side wall of the bearing frame (48) close to the spray head (44) is provided with a plurality of through grooves (6), the through grooves (6) are uniformly distributed at intervals along the bottom of the inner wall of the bearing frame (48), vertical rods (7) are arranged inside the through grooves (6), two ends of each vertical rod (7) are fixedly connected with the bearing frame (48), the vertical rods (7) are sleeved with shifting plates (8), torsion springs are arranged between the vertical rods (7) and the shifting plates (8), the bottom surfaces of the shifting plates (8) are contacted with the bottom of the inner wall of the bearing frame (48), the side wall of the bearing frame (48) close to the spray head (44) is fixedly connected with a plurality of air injection assemblies (9), the air injection assemblies (9) are in one-to-one correspondence with the shifting plates (8), each air injection assembly (9) comprises a strip-shaped frame (91), pushing plates (92) matched with the strip-shaped frame (91) are arranged inside the strip-shaped frame (91), and one face, close to the corresponding shifting plates (8), of each pushing plate (92), the connecting rod (93) penetrates through the strip-shaped frame (91) and is connected with the contact plate (94), the other surface of the shifting plate (8) is fixedly connected with a return spring (95), and the return spring (95) is fixedly connected with the strip-shaped frame (91); one surface of the strip-shaped frame (91) close to the spray head (44) is communicated with a spray head (96), and the spray head (96) gradually inclines towards the adjacent supporting plate (2).
3. The urban sewer pipeline anticorrosion process method according to claim 1, wherein: the drawing plate (8) located inside the bearing frame (48) is provided with a bearing groove (10), one end, away from the middle of the bearing frame (48), of the bearing groove (10) is provided with a sealing plate (11), one face, close to the bearing groove (10), of the sealing plate (11) is fixedly connected with a sealing spring (12), one end of the sealing spring (12) is fixedly connected with a cross rod (13), and the cross rod (13) is fixedly connected to the groove wall of the bearing groove (10).
4. The urban sewer pipeline anticorrosion process method according to claim 2, wherein: the bottom of the bearing groove (10) is provided with a transverse plate (14) in an inserted manner on the shifting plate (8), the transverse plate (14) is fixedly connected with the sealing plate (11), the height of the transverse plate (14) is gradually reduced from the middle part of the transverse plate to the two ends of the shifting plate (8), and the surface of the transverse plate (14) is provided with a vertically arranged leak hole (15) in a penetrating manner.
5. The urban sewer pipeline anticorrosion process method according to claim 3, wherein: the bottom of the supporting plate (2) is in threaded connection with an adjusting shaft (16), and the bottom of the adjusting shaft (16) is in threaded connection with the bottom plate (1).
6. The urban sewer pipeline anticorrosion process method according to claim 2, wherein: one surface of the shifting plate (8) close to the middle of the bearing frame (48) is fixedly connected with a plugging pad (17), the plugging pad (17) is close to the through groove (6), and the plugging pad (17) is used for plugging the through groove (6).
7. The urban sewer pipeline anticorrosion process method according to claim 1, wherein: the two power rollers (3) are symmetrically arranged relative to the supporting shaft (41), and the surfaces of the power rollers (3) are subjected to sanding treatment.
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| CN202011512985.8A CN112705446A (en) | 2020-12-20 | 2020-12-20 | Urban sewer pipeline anticorrosion process method |
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Application publication date: 20210427 |