CN110512709A - Trenchless repairing method of underground pipeline - Google Patents
Trenchless repairing method of underground pipeline Download PDFInfo
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- CN110512709A CN110512709A CN201910770897.9A CN201910770897A CN110512709A CN 110512709 A CN110512709 A CN 110512709A CN 201910770897 A CN201910770897 A CN 201910770897A CN 110512709 A CN110512709 A CN 110512709A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/10—Homopolymers or copolymers of propene
- C09J123/12—Polypropene
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
- E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention relates to pipe rehabilitation technology fields, are inconvenient problems for the resin that is heating and curing, provide a kind of trenchless repairing method of underground pipeline, the technical solution is as follows: the following steps are included: the water in S1. discharge damaged pipe；S2. ventilation dredging in pipe；S3. detection in pipe；S5. it is damaged place's coating repairing resin；S6. detection in being managed after constructing；S7. water flowing is checked and accepted；Repairing resin includes the component of following mass fraction: 100 parts of polypropylene；35-45 parts of polyacrylonitrile；18-22 parts of cellulose acetate；5-8 parts of silane coupling agent；3-5 parts of cobalt salt.The major ingredient of repairing resin is acted on by using polypropylene, is coated in the impaired place of pipeline after repairing resin can be heated by hot melt, underground piping is heated without large area, so that operating when repairing more convenient.
Description
Technical field
The present invention relates to pipe rehabilitation technology fields, more particularly, to a kind of trenchless repairing method of underground pipeline.
Background technique
Underground piping is mainly used for sewage effluent, and underground blow-off line is divided into several segments, is arranged between adjacent tubular segments and checks
Well, maintenance personnel, which periodically enters in pipeline from inspection shaft, detects whether underground piping is damaged with timed maintenance.
Usually maintenance when add the combination of curing agent to insert impaired place using resin, by heating so that resin solidification, in turn
Stablize and be filled in impaired place, and then realizes the repairing to damaged pipe.
But this repairing method needs to heat the resin and curing agent at the impaired place of filling pipeline, when pipeline is impaired
When area is larger, heating surface (area) (HS will be bigger, so that operation is inconvenient, therefore, there are also improve space.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of underground piping non-excavation rehabilitation side
Method has the advantages that easy to operate.
To achieve the above object, the present invention provides the following technical scheme that
A kind of trenchless repairing method of underground pipeline, comprising the following steps:
S1. the water in damaged pipe is discharged；
S2. ventilation dredging in pipe；
S3. detection in pipe；
S4. it is damaged place's coating repairing resin；
S5. detection in being managed after constructing；
S6. water flowing is checked and accepted；
The repairing resin includes the component of following mass fraction:
100 parts of polypropylene；
35-45 parts of polyacrylonitrile；
18-22 parts of cellulose acetate；
5-8 parts of silane coupling agent；
3-5 parts of cobalt salt.
By using above-mentioned technical proposal, the major ingredient of repairing resin is acted on by using polypropylene, so that repairing resin is
Thermoplastic resin is coated in the impaired place of pipeline after can heating repairing resin by hot melt, since repairing resin heating is squeezing out
It carries out in equipment, underground piping is heated without large area, so that being operated when repairing more convenient；
By be added cobalt salt so that repairing resin preferably with metal bonding so that armored concrete preparation buried pipe
Road is damaged to when exposing reinforcing bar, and repairing resin can guarantee the effect of repairing reinforced concrete pipiline, together preferably in conjunction with pipeline
When repairing metallic conduit when, repairing resin it is sufficiently stable with pipeline in conjunction with so that repair metallic conduit effect it is preferable；
By the way that silane coupling agent is added, so that the attachment force of repairing resin and inorganic matter enhances, so that repairing resin adherency
Attachment force on concrete tube wall is stronger, so that being adhered on concrete tube wall with repairing stable resin, guarantees repairing resin
The effect of mending concrete underground piping.
By the way that polyacrylonitrile and cellulose acetate is added in repairing resin, and match at a specific ratio with polypropylene
It closes, so that polyacrylic brittle temperature is reduced, so that repairing resin is better adapted to cold district, so that repairing resin
Applicability it is wider.
The present invention is further arranged to: the repairing resin further includes the component of following mass fraction:
10-12 parts of casein.
The combination of repairing resin and metal is further increased by the way that casein is added by using above-mentioned technical proposal
Power, so that the attachment force that repairing resin is adhered on metal pipe-wall or reinforcing bar is stronger, utility repairs resin and repairs underground
The effect of pipeline.
The present invention is further arranged to: the repairing resin further includes the component of following mass fraction:
5-8 parts of polyethylene glycol；
3-5 parts of stearic acid；
3-5 parts of paraffin.
By using above-mentioned technical proposal, by the way that polyethylene glycol, stearic acid, paraffin and with specific are added in repairing resin
Proportion combination so that repairing resin fusing point decline so that use hot melt hot melt repairing resin to repair pipeline when it is required
Heating temperature decline, energy conservation and environmental protection are easy to operate.
The present invention is further arranged to: the repairing resin further includes the component of following mass fraction:
22-25 parts of mica；
1-2 parts of titanate coupling agent.
By using above-mentioned technical proposal, makes the physical property for repairing resin increase by filling mica, improve and stretch
Intensity and compression strength increase mica and polyacrylic connective stability by titanate coupling agent, so that mica is more steady
Surely it is uniformly dispersed, guarantees the effect of mica reinforcement repairing resin, while further increasing repairing using titanate coupling agent
The attachment force of resin and concrete tube wall better ensures that so that repairing resin is adhered on concrete tube wall more stablely
Repair the effect of resin mending concrete underground piping.
The present invention is further arranged to: the repairing resin further includes the component of following mass fraction:
3-5 parts of lotus leaf powder.
The hydrophobicity of repairing resin is further increased, so that water by the way that lotus leaf powder is added by using above-mentioned technical proposal
Divide and be not easy to penetrate into repairing resin, guarantees the waterproof effect of repairing resin.
The present invention is further arranged to: the repairing resin further includes the component of following mass fraction:
3-5 parts of organo montmorillonite.
By using above-mentioned technical proposal, by the way that organo montmorillonite is added to be scattered in using organo montmorillonite layer structure
Repair in resin, stop the harmful components such as oxygen molecule, slow down repairing resin degradation with aging so that repairing resin service life compared with
It is long.
The present invention is further arranged to: the repairing resin further includes the component of following mass fraction:
5-8 parts of sebacic dihydrazide.
By using above-mentioned technical proposal, by the way that sebacic dihydrazide is added, so that the brittle temperature of repairing resin is substantially
Decline, so that repairing resin is preferably suitable for cold district, so that the applicability of repairing resin is wider.
The present invention is further arranged to: it is described repairing resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt are ground to the powder that partial size is 10-100nm；
B. it mixes, specific as follows:
PP GRANULES, polyacrylonitrile powder, cellulose acetate powder, cobalt salt powder, silane coupling agent powder are mixed
Even formation mixture；
C. extruding pelletization, specific as follows:
It feeds the mixture into extruding pelletization in extrusion equipment and forms granular repairing resin.
By using above-mentioned technical proposal, by the way that polyacrylonitrile, cellulose acetate, cobalt salt are ground into nanometer grade powder
Shape, so that each raw material are easy to be uniformly dispersed in polypropylene after polypropylene fusion, so that repairing resin quality is preferable；Pass through
Melting is added in entering extruder to carry out last mixing after first mixing a raw material, so that contracting the time required to being uniformly mixed
It is short, polyacrylic thermal history is reduced, so that repairing resin is not easy thermal degradation, guarantees the quality of repairing resin.
In conclusion the invention has the following advantages:
1. acting on the major ingredient of repairing resin by using polypropylene, pipe is coated in after repairing resin being heated by hot melt
The impaired place in road, heats underground piping without large area, so that operating when repairing more convenient；
2. by be added cobalt salt, casein so that repairing resin preferably with metal bonding so that armored concrete prepare
Underground piping be damaged to expose reinforcing bar when, repairing resin can preferably with pipeline ining conjunction with, guarantee repair reinforced concrete pipiline
Effect, while when repairing metallic conduit, repairing resin is sufficiently stable with pipeline in conjunction with so that repair the effect of metallic conduit compared with
It is good；
3. by the way that sebacic dihydrazide is added, so that the brittle temperature of repairing resin declines to a great extent, so that repairing resin is more
It is suitable for cold district well, so that the applicability of repairing resin is wider.
Detailed description of the invention
Fig. 1 is the flow diagram of trenchless repairing method of underground pipeline in the present invention.
Specific embodiment
With reference to the accompanying drawings and embodiments, invention is further described in detail.
In following embodiment, polypropylene uses the polypropylene of Kunshan Jin Kaiwo plastic cement Co., Ltd sale.
In following embodiment, polyacrylonitrile uses the polyacrylonitrile hs2000 of Shenzhen Dan Sheng plastic cement Co., Ltd sale.
In following embodiment, cellulose acetate uses the cellulose acetate of Shanghai fuzz Chemical Co., Ltd. sale.
In following embodiment, silane coupling agent using Suzhou Bert receive environmental friendly material Co., Ltd sale solid silicone
Coupling agent W-6040.
In following embodiment, cobalt salt uses the cobalt boracylate of Shanghai Bei Yu Industrial Co., Ltd. sale.
In following embodiment, casein uses the casein of Henan Yan Kang food additives Co., Ltd sale.
In following embodiment, polyethylene glycol uses the polyethylene glycol 400 of Guangzhou Xing Wei trade Co., Ltd sale.
In following embodiment, stearic acid uses the stearic acid 1838 of Shandong You Suo Chemical Industry Science Co., Ltd sale.
In following embodiment, paraffin uses semi-refined paraffin wax 58 that You Suo Chemical Industry Science Co., Ltd in Shandong sells.
In following embodiment, mica uses the mica powder of Lingshou County Run Yu mineral products processing factory sale.
In following embodiment, titanate coupling agent is even using the titanate esters that Dongguan City Lv Wei plasthetics Co., Ltd sells
Join agent YB-201.
In following embodiment, lotus leaf powder uses the lotus leaf powder of Xinghua City Lv Shuai Food Co., Ltd sale.
In following embodiment, organo montmorillonite is de- using the organic illiteracy of nanoscale that Lingshou County Wo Ao mineral products processing factory sells
Soil.
In following embodiment, sebacic dihydrazide uses two acyl of decanedioic acid of Changzhou Kai Qiao Biotechnology Co., Ltd sale
Hydrazine.
Embodiment 1
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 35kg, cellulose acetate powder 18kg, cobalt are added in a stirring kettle
Salt powder 3kg, silane coupling agent powder 5kg close stirred tank, inject nitrogen, and air, revolving speed 75r/min, stirring is discharged
10min forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 2
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 40kg, cellulose acetate powder 20kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 6kg close stirred tank, inject nitrogen, and air, revolving speed 75r/min, stirring is discharged
10min forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 3
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 45kg, cellulose acetate powder 22kg, cobalt are added in a stirring kettle
Salt powder 5kg, silane coupling agent powder 8kg close stirred tank, inject nitrogen, and air, revolving speed 75r/min, stirring is discharged
10min forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 4
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 7kg close stirred tank, inject nitrogen, and air, revolving speed 75r/min, stirring is discharged
10min forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 5
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt, mica are respectively put into and are ground into partial size position 10-100nm's in grinder
Powder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 7kg, casein 10kg, polyethylene glycol 5kg, stearic acid 3kg, paraffin 3kg, mica powder
22kg, titanate coupling agent 1kg, lotus leaf powder 3kg, organo montmorillonite 3kg, sebacic dihydrazide 5kg close stirred tank, injection
Air is discharged in nitrogen, and revolving speed 75r/min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 6
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt, mica are respectively put into and are ground into partial size position 10-100nm's in grinder
Powder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 7kg, casein 10kg, polyethylene glycol 7kg, stearic acid 4kg, paraffin 4kg, mica powder
24kg, titanate coupling agent 1.5kg, lotus leaf powder 4kg, organo montmorillonite 4kg, sebacic dihydrazide 6kg close stirred tank, note
Enter nitrogen, air is discharged, revolving speed 75r/min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 7
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt, mica are respectively put into and are ground into partial size position 10-100nm's in grinder
Powder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 7kg, casein 12kg, polyethylene glycol 8kg, stearic acid 5kg, paraffin 5kg, mica powder
25kg, titanate coupling agent 2kg, lotus leaf powder 5kg, organo montmorillonite 5kg, sebacic dihydrazide 8kg close stirred tank, injection
Air is discharged in nitrogen, and revolving speed 75r/min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 8
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt, mica are respectively put into and are ground into partial size position 10-100nm's in grinder
Powder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 7kg, casein 11kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, mica powder
23kg, titanate coupling agent 1.2kg, lotus leaf powder 3kg, organo montmorillonite 3kg, sebacic dihydrazide 6kg close stirred tank, note
Enter nitrogen, air is discharged, revolving speed 75r/min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Embodiment 9
A kind of trenchless repairing method of underground pipeline, referring to Fig.1, comprising the following specific steps
S1. the water in damaged pipe is discharged, specific as follows:
In the inspection shaft at the both ends of impaired pipeline section, two segment pipes adjacent with impaired pipeline section are blocked towards impaired pipeline section
Nozzle extracts the water in impaired pipeline section out by inspection shaft.
S2. ventilation dredging in pipe, specific as follows:
Ventilation in impaired pipeline section is kept, manually clears out mud, and is taken out from inspection shaft to transport to mud collection place.
S3. detection in pipe, specific as follows:
Maintenance personal detects the impaired place of pipeline by supersonic detector, and irises out damaged location.
S4. it is damaged place's coating repairing resin, specific as follows:
Repairing resin is heated by thermosol gelgun to be squeezed out to after melting to the impaired place of pipeline section, and is smoothed out, and tree is repaired after floating
Rouge area coverage is the 110% of impaired place's area, the repairing resin after floating be raised in inner wall of the pipe with a thickness of 1mm.
S5. detection in being managed after constructing, specific as follows:
After repairing resin cooling, impaired pipeline section is detected again by supersonic detector, sees if there is what omission was not repaired
Place, if carrying out next step without if, if being repaired.
S6. water flowing is checked and accepted, specific as follows:
Water flowing detects whether to complete to construct if without if there is also leakage, if there is also leakages to continue to test repairing.
In the present embodiment, repairing resin uses the repairing resin of embodiment 8, and embodiment 1- also can be used in other embodiments
7 repairing resin.
Comparative example 1
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Cellulose acetate, cobalt salt, mica are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, cellulose acetate powder 21kg, cobalt salt powder 4kg, silane coupled is added in a stirring kettle
Agent powder 7kg, casein 11kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, mica powder 23kg, titanate coupling agent
1.2kg, lotus leaf powder 3kg, organo montmorillonite 3kg, sebacic dihydrazide 6kg close stirred tank, inject nitrogen, and air is discharged, and turn
Fast 75r/min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Comparative example 2
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cobalt salt, mica are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cobalt salt powder 4kg, silane coupling agent are added in a stirring kettle
Powder 7kg, casein 11kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, mica 23kg, titanate coupling agent 1.2kg,
Lotus leaf powder 3kg, organo montmorillonite 3kg, sebacic dihydrazide 6kg close stirred tank, inject nitrogen, and air, revolving speed 75r/ is discharged
Min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Comparative example 3
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Cobalt salt, mica are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, cobalt salt powder 4kg, silane coupling agent powder 7kg, casein are added in a stirring kettle
11kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, mica powder 23kg, titanate coupling agent 1.2kg, lotus leaf powder 3kg,
Organo montmorillonite 3kg, sebacic dihydrazide 6kg close stirred tank, inject nitrogen, and air, revolving speed 75r/min, stirring is discharged
10min forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Comparative example 4
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt, mica are respectively put into and are ground into partial size position 10-100nm's in grinder
Powder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 7kg, casein 11kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, mica powder
23kg, titanate coupling agent 1.2kg, lotus leaf powder 3kg, organo montmorillonite 3kg close stirred tank, inject nitrogen, and air is discharged,
Revolving speed 75r/min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Comparative example 5
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, silane coupling agent powder 7kg, casein 11kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, lotus leaf powder
3kg, organo montmorillonite 3kg, sebacic dihydrazide 6kg close stirred tank, inject nitrogen, and air is discharged, and revolving speed 75r/min is stirred
10min is mixed, mixture is formed.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Comparative example 6
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, mica are respectively put into the powder that partial size position 10-100nm is ground into grinder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, silicon are added in a stirring kettle
Alkane coupling agent powder 7kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, mica powder 23kg, titanate coupling agent 1.2kg,
Lotus leaf powder 3kg, organo montmorillonite 3kg, sebacic dihydrazide 6kg close stirred tank, inject nitrogen, and air, revolving speed 75r/ is discharged
Min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Comparative example 7
A kind of repairing resin, repair resin the preparation method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt, mica are respectively put into and are ground into partial size position 10-100nm's in grinder
Powder.
B. it mixes, specific as follows:
PP GRANULES 100kg, polyacrylonitrile powder 42kg, cellulose acetate powder 21kg, cobalt are added in a stirring kettle
Salt powder 4kg, casein 11kg, polyethylene glycol 6kg, stearic acid 4kg, paraffin 4kg, mica powder 23kg, titanate coupling agent
1.2kg, lotus leaf powder 3kg, organo montmorillonite 3kg, sebacic dihydrazide 6kg close stirred tank, inject nitrogen, and air is discharged, and turn
Fast 75r/min stirs 10min, forms mixture.
C extruding pelletization, specific as follows:
Mixture is discharged into double screw extruder and squeezes out stability contorting at 150 DEG C, extrusion is made into underwater pelletizing equipment
Grain, forms granular repairing resin.
Experiment 1
Embodiment 1-8 and comparative example 1-7 is detected according to GB/T5470-2008 " measurement of plastic impact method brittle temperature "
Repairing resin preparation sample brittle temperature.
Experiment 2
According to GB/T14208.3-2009 " textile fibreglass reinforced plastics roving reinforced resin stick mechanical performance
Measure third portion: the measurement of compressive strength " detection embodiment 1-8 and comparative example 1-7 repairing resin preparation sample pressure
Contracting intensity.
Experiment 3
It is detected and is implemented according to GB/T528-2009 " measurement of vulcanized rubber or thermoplastic elastomer tensile stress-strain performance "
The tensile strength of the sample of the repairing resin preparation of example 1-8 and comparative example 1-7.
Experiment 4
Using the fusing point of the repairing resin of melting point apparatus detection embodiment 1-8 and comparative example 1-7.
Experiment 5
Cement block is made using portland cement, quartz sand, water, portland cement: quartz sand: water 1:2:1.
Cement block is having a size of long x wide x high=10cmx1cmx1cm.
Glassine paper is wrapped up in cement block one end, and glassine paper packages length is 2cm.
Portland cement extensively undertakes the construction of the P.O42.5R ordinary portland cement of material trade Co., Ltd sale using Dongguan City.
Using cement block upper surface is coated in after the repairing resin hot melt of embodiment 1-8 and comparative example 1-7, resin is repaired
Coating thickness is 1mm, first coats the repairing resin of 0.5mm thickness, then places polyester fiber cloth on repairing resin, then
It is coated with the repairing resin of 0.5mm thickness, polyester fiber cloth thickness 0.1mm.
It is detected by tensile testing machine, one of fixture clamping another fixture of cement block clamping repairing resin quilt
The end of glassine paper isolation, the peel strength of detection repairing resin and cement block.
Experiment 6
Metal strip is cut, metal strip uses stainless steel, and the size of metal strip is long x wide x high=10cmx1cmx1cm.
Glassine paper is wrapped up in metal strip one end, and glassine paper packages length is 2cm.
Using metal strip upper surface is coated in after the repairing resin hot melt of embodiment 1-8 and comparative example 1-7, resin is repaired
Coating thickness is 1mm, first coats the repairing resin of 0.5mm thickness, then places polyester fiber cloth on repairing resin, then
It is coated with the repairing resin of 0.5mm thickness, polyester fiber cloth thickness 0.1mm.
It is detected by tensile testing machine, one of fixture clamping another fixture of metal strip clamping repairing resin quilt
The end of glassine paper isolation, the peel strength of detection repairing resin and metal strip.
Specific detection data is shown in Table 1
Table 1
Can be obtained according to table 1, by be added in repairing resin polyacrylonitrile and cellulose acetate and and polypropylene with spy
Fixed ratio mixing, can be effectively reduced polyacrylic brittle temperature, so that repairing resin is more suitable for cold district.
It can be further improved polyacrylonitrile and cellulose acetate reduction polypropylene embrittlement by the way that sebacic dihydrazide is added
The effect of temperature, so that polyacrylic brittle temperature further declines, so that repairing resin is more suitable for cold district.
By the way that mica and titanate coupling agent is added and is cooperated with special ratios, the compression of limited raising repairing resin is strong
Degree and tensile strength, so that the physical property of repairing resin is more preferably, repair efficiency is preferable.
The peel strength of repairing resin and metal is effectively improved by addition cobalt salt, casein, so that repairing resin adherency
Stability on metallic conduit is preferable, guarantees repairing resin to the repair efficiency of metal tube.
By the way that silane coupling agent and titanate coupling agent is added, repairing resin and cement peel strength are effectively improved, is made
It must repair that the stability that resin is adhered on cement is preferable, guarantee repairing resin to the repair efficiency of reinforced concrete pipiline.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of trenchless repairing method of underground pipeline, it is characterized in that: the following steps are included:
S1. the water in damaged pipe is discharged；
S2. ventilation dredging in pipe；
S3. detection in pipe；
S4. it is damaged place's coating repairing resin；
S5. detection in being managed after constructing；
S6. water flowing is checked and accepted；
The repairing resin includes the component of following mass fraction:
100 parts of polypropylene；
35-45 parts of polyacrylonitrile；
18-22 parts of cellulose acetate；
5-8 parts of silane coupling agent；
3-5 parts of cobalt salt.
2. trenchless repairing method of underground pipeline according to claim 1, it is characterized in that: the repairing resin further include with
The component of lower mass fraction:
10-12 parts of casein.
3. trenchless repairing method of underground pipeline according to claim 2, it is characterized in that: the repairing resin further include with
The component of lower mass fraction:
5-8 parts of polyethylene glycol；
3-5 parts of stearic acid；
3-5 parts of paraffin.
4. trenchless repairing method of underground pipeline according to claim 3, it is characterized in that: the repairing resin further include with
The component of lower mass fraction:
22-25 parts of mica；
1-2 parts of titanate coupling agent.
5. trenchless repairing method of underground pipeline according to claim 4, it is characterized in that: the repairing resin further include with
The component of lower mass fraction:
3-5 parts of lotus leaf powder.
6. trenchless repairing method of underground pipeline according to claim 1, it is characterized in that: the repairing resin further include with
The component of lower mass fraction:
3-5 parts of organo montmorillonite.
7. trenchless repairing method of underground pipeline according to claim 1, it is characterized in that: the repairing resin further include with
The component of lower mass fraction:
5-8 parts of sebacic dihydrazide.
8. trenchless repairing method of underground pipeline according to claim 1, it is characterized in that: the preparation side of the repairing resin
Method is as follows:
A. it grinds, specific as follows:
Polyacrylonitrile, cellulose acetate, cobalt salt are ground to the powder that partial size is 10-100nm；
B. it mixes, specific as follows:
PP GRANULES, polyacrylonitrile powder, cellulose acetate powder, cobalt salt powder, silane coupling agent powder are mixed even shape
Resulting mixture；
C. extruding pelletization, specific as follows:
It feeds the mixture into extruding pelletization in extrusion equipment and forms granular repairing resin.
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| CN201910770897.9A CN110512709A (en) | 2019-08-20 | 2019-08-20 | Trenchless repairing method of underground pipeline |
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| CN201910770897.9A CN110512709A (en) | 2019-08-20 | 2019-08-20 | Trenchless repairing method of underground pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111117379A (en) * | 2020-01-13 | 2020-05-08 | 广州铭汇建设工程有限公司 | Pipeline antirust coating |
| CN111535425A (en) * | 2020-05-12 | 2020-08-14 | 广东明龙建设有限公司 | Underground drainage pipe leakage repairing construction method |
| CN112227498A (en) * | 2020-09-30 | 2021-01-15 | 长春市城建维护集团股份有限公司 | Non-excavation construction method for municipal pipeline |
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| CN105218998A (en) * | 2015-10-21 | 2016-01-06 | 南京润屹电子科技有限公司 | The high performance material protected for underground pipeline or repair and preparation method |
| CN108692128A (en) * | 2017-04-07 | 2018-10-23 | 健管（厦门）环境科技有限公司 | A kind of trenchless repairing method of underground piping and inspection shaft |
| CN110106960A (en) * | 2019-06-06 | 2019-08-09 | 广东隆建工程有限公司 | Sewage conduct construction method |
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| CN102516669A (en) * | 2011-11-30 | 2012-06-27 | 广东联塑科技实业有限公司 | Modified polypropylene mixture for non-excavating power cable communication casing pipes and preparation method thereof |
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| CN111117379A (en) * | 2020-01-13 | 2020-05-08 | 广州铭汇建设工程有限公司 | Pipeline antirust coating |
| CN111535425A (en) * | 2020-05-12 | 2020-08-14 | 广东明龙建设有限公司 | Underground drainage pipe leakage repairing construction method |
| CN112227498A (en) * | 2020-09-30 | 2021-01-15 | 长春市城建维护集团股份有限公司 | Non-excavation construction method for municipal pipeline |
| CN112227498B (en) * | 2020-09-30 | 2022-06-21 | 长春市城建维护集团股份有限公司 | Non-excavation construction method for municipal pipeline |
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Application publication date: 20191129 |