CN107448731A - A kind of Wen's pipe connected pipe method of inhibiting corrosion - Google Patents
A kind of Wen's pipe connected pipe method of inhibiting corrosion Download PDFInfo
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- CN107448731A CN107448731A CN201710648535.3A CN201710648535A CN107448731A CN 107448731 A CN107448731 A CN 107448731A CN 201710648535 A CN201710648535 A CN 201710648535A CN 107448731 A CN107448731 A CN 107448731A
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- flake graphite
- crystalline flake
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- graphite alkene
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Prevention Of Electric Corrosion (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Carbon And Carbon Compounds (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The present invention relates to a kind of Wen's pipe connected pipe method of inhibiting corrosion, and the inwall of connecting tube is polished, is polishing to Sa2.5 levels, and roughness reaches 63 μm, and one layer of 304 stainless steel hexsteel is welded in buffed surface；Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, while the edge of the stainless steel roll bending, which is flipped over, makes its covering connect tube end.The connecting tube that the present invention solves the problems, such as Venturi tube causes system air leakage because of corrosion and damage.
Description
Technical field
The present invention relates to a kind of Wen's pipe connected pipe method of inhibiting corrosion.
Background technology
Because waste heat can not utilize in gold ores containing sulfur roasting technique, the mode of text-fill out-electricity is typically taken to carry out cooling and remove
Dirt technique, and at Venturi tube it is the position that flue gas is changed into 80 DEG C of low temperature of ＜ from 280 DEG C of high temperature of ＞, cold and heat succeed each other, connecting tube is frequent
There is liner fragmentation, spill shell and corrode, part low temperature crystallization thing is bonded on pipeline, causes SR to increase, and is influenceed
System production.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of Wen's pipe connected pipe method of inhibiting corrosion, present invention solution
The problem of certainly connecting tube of Venturi tube causes system air leakage because of corrosion and damage.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, stainless in one layer 304 of buffed surface welding
Steel hexsteel；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 20~40:0.8~2, its
Middle component A by following material by weight：
20~40 parts of epoxy resin, 10~20 parts of activated zinc oxide, 20~30 parts of talcum powder, 20~30 parts of white carbon, diluent 5
~15 parts and 1~5 part of crystalline flake graphite alkene；
Wherein B component by following material by weight：
75~85 parts of 15~25 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Crystalline flake graphite ore deposit and water after will be broken is according to mass ratio 25~35:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, addition 50~100g of butyl xanthate, stirring 3~
5min, scrape 8~15min of bubble；Once purging selection：20~40g butyl xanthates are added into ore pulp, stirs 1 minute, scrapes 3~5 points of bubble
Clock；It is secondary to scan：20~40g butyl xanthates are added into ore pulp, stirs 1 minute, scrapes bubble 3~5 minutes；Obtain flotation scale stone
Ink and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 20~50:0.1~
0.5:50~80 are added in homogenizer, at least homogeneous 1 time under the conditions of 50~75 DEG C, obtain crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained；
The epoxy resin is that epoxy resin is epoxy resin E44, furane resins, No. 6101 epoxy resin and No. 634 asphalt mixtures modified by epoxy resin
One kind or arbitrary proportion in fat it is two or more；
The diluent is alcohol, ethylene glycol diglycidylether, epoxide diluent D-678 and one kind in ethyl acetate or appointed
Meaning ratio it is two or more.
Component A by following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 7 parts of diluent and crystalline flake graphite alkene 3
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
The epoxy resin is that epoxy resin is epoxy resin E44 and No. 6101 epoxy resin according to mass ratio 2:1 composition；
The diluent is epoxide diluent D-678.
Step 1）Described in the gap of hexsteel and communicating pipe<3mm.
Step d）For homogeneous 3 times, first time homogeneous pressure is 30~40MPa, homogeneous 20min；Second of homogeneous pressure be
10~20MPa, homogeneous 20min；Third time homogeneous pressure is 4~8MPa, homogeneous 20min.
Invention has following advantageous effects：
1st, be mounted directly after carrying out castable liner with conventional communicating pipe, using liner after a period of time because cold and heat succeed each other and
It is cracked, can be come off after long-play, enclosure material is ordinary carbon steel, is corroded intolerant to diluted acid, causes device damage, air leak rate of air curtain to increase
Greatly.
2nd, village in one layer of 254SMO stainless steel of present invention increase, Heat-stable, interior facings is smooth, does not bond mine dust, system
Resistance is small.
3rd, the present invention adds crystalline flake graphite alkene, can substantially increase the toughness of heatproof castable, will not be because of temperature at Venturi tube
Change, is cracked.
4th, because graphene has a floatability in itself, therefore the present invention is only with adding a small amount of butyl xanthate flotation, and roughing one
It is secondary, scan twice, without selected, you can obtain flotation essence crystalline flake graphite.
5th, graphene of the crystalline flake graphite alkene through homogeneous acquisition three times of the present invention, there is the characteristics of number of plies is low, good toughness.
Embodiment
Embodiment 1
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 7 parts of diluent and crystalline flake graphite alkene 3
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 3 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Third time homogeneous pressure is 6MPa, homogeneous 20min, obtains crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 2
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 7 parts of diluent and crystalline flake graphite alkene 3
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 4 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Third time homogeneous pressure is that time homogeneous pressure of 6MPa, homogeneous 20min, the 4th is 4MPa, homogeneous
20min, obtain crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 3
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 7 parts of diluent and crystalline flake graphite alkene 3
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 2 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Obtain crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 4
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 7 parts of diluent and crystalline flake graphite alkene 3
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 2 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 6MPa, homogeneous 20min, obtains crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 5
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 5 parts of diluent and crystalline flake graphite alkene 5
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 3 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Third time homogeneous pressure is 6MPa, homogeneous 20min, obtains crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 6
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 6 parts of diluent and crystalline flake graphite alkene 4
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 3 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Third time homogeneous pressure is 6MPa, homogeneous 20min, obtains crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 7
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 8 parts of diluent and crystalline flake graphite alkene 2
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 3 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Third time homogeneous pressure is 6MPa, homogeneous 20min, obtains crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 8
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 9 parts of diluent and crystalline flake graphite alkene 1
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 3 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Third time homogeneous pressure is 6MPa, homogeneous 20min, obtains crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
Embodiment 9
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, and one layer is welded in buffed surface
304 stainless steel hexsteels, the gap of the hexsteel and buffed surface<3mm；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 35:1.3, wherein component A
By following material by weight：
2 parts of 25 parts of furane resins, 20 parts of activated zinc oxide, 25 parts of talcum powder, 20 parts of white carbon, 8 parts of alcohol and crystalline flake graphite alkene；
Wherein B component by following material by weight：
Wherein B component by following material by weight：
75 parts of 25 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Roughing will it is broken after crystalline flake graphite alkene ore deposit and water according to mass ratio 30:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, adds butyl xanthate 60g, 4min is stirred, scrapes
Steep 10min；Once purging selection：30g butyl xanthates are added into ore pulp, are stirred 1 minute, scrape bubble 4 minutes；It is secondary to scan：To ore pulp
Middle addition 20g butyl xanthates, stir 1 minute, scrape bubble 4 minutes；It is selected：10g butyl xanthates are added into ore pulp, are stirred 1 minute,
Scrape bubble 4 minutes；Obtain flotation crystalline flake graphite and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 30:0.2:69.8 add
Enter into homogenizer, homogeneous 3 times under the conditions of 60 DEG C, first time homogeneous pressure is 35MPa, homogeneous 20min；Second of homogeneous pressure
Power is 15MPa, homogeneous 20min；Third time homogeneous pressure is 6MPa, homogeneous 20min, obtains crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained.
The epoxy resin of embodiment 1 to 8 is that epoxy resin is epoxy resin E44 and No. 6101 epoxy resin according to quality
Than 2:1 composition；The diluent is epoxide diluent D-678.
The present invention is further illustrated with reference to instantiation.
Experiment one：
1 materials and methods：
1.1 test site：The global Qi Ye Co., Ltds in Yantai laboratory.
1.2 experiment detections：Carry out carrying out flaw detection.
1.3 material to be tested：Heatproof castable, embodiment 3 prepared by heatproof castable, the embodiment 2 of the preparation of embodiment 1 is made
It is prepared by heatproof castable, embodiment 6 prepared by heatproof castable prepared by standby heatproof castable, embodiment 4, embodiment 5
Heatproof castable prepared by heatproof castable and embodiment 8 prepared by heatproof castable, embodiment 7.
1.4 experimental design：By the 254SMO stainless steels roll bending one side of 2mm thickness, Sa2.5 levels are polishing to, roughness reaches
63
μm, weld one layer of 304 stainless steel hexsteel, the gap of the hexsteel and buffed surface in buffed surface<3mm；Respectively will be real
Heatproof castable, embodiment 4 prepared by the heatproof castable of example 1, heatproof castable prepared by embodiment 2, embodiment 3 is applied to prepare
Heatproof prepared by heatproof castable, embodiment 7 prepared by heatproof castable, the heatproof castable of the preparation of embodiment 5, embodiment 6
Heatproof castable prepared by castable and embodiment 8 is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
The 254SMO stainless steel roll bendings turnup of 2mm thickness is wrapped up into liner, respectively strip of the seamless welding into 6cm × 12cm.By strip
It is put into 300 DEG C of drying air boxes 12 hours, takes out room temperature and cool down 8 hours, so repeatedly 45 days, using ultrasonic examination, in survey
It is lined with flawless or defect.
This experiment is consistent with other operations in addition to processing difference except testing.
2 results and analysis in table 1
Carrying out flaw detection result after table 1 is tested 45 days
In table 1 by embodiment 1, embodiment 2, embodiment 3 and embodiment 4 compare it can be seen from 3 times homogeneous to crystalline flake graphite alkene
With 4 times, reachable liner flawless, no peeling；Compared by embodiment 1, embodiment 5, embodiment 6, embodiment 7 and embodiment 8
Relatively as can be seen that liner flawless, no peeling can be accomplished when crystalline flake graphite alkene addition reaches 3%, and integrated cost and effect are examined
Consider the technique of embodiment 1 and graphene addition is optimal.
Embodiment 1 is applied to the Venturi tube in Yantai Jin Ao gold smeltings Co., Ltd gold ores containing sulfur roasting technique
Place, using 2 years, does not occur liner Fragmentation Phenomena；Liner occurred as soon as broken corrosion phenomenon using 1 year in the past, needed to change.
Claims (4)
1. a kind of Wen's pipe connected pipe method of inhibiting corrosion, it is characterised in that follow the steps below：
1）The inwall of connecting tube is polished, is polishing to Sa2.5 levels, roughness reaches 63 μm, stainless in one layer 304 of buffed surface welding
Steel hexsteel；
2）Heatproof castable is uniformly applied on hexsteel, thickness 3cm, 24h is stood, as liner；
3）The 254SMO stainless steel roll bendings of 2mm thickness are attached to inner lining surface, at the same by the edge of the stainless steel roll bending to
Outer upset makes its covering connection tube end；
The heatproof castable is made up of component A and B component, and the ratio of component A and B component is 20~40:0.8~2, its
Middle component A by following material by weight：
20~40 parts of epoxy resin, 10~20 parts of activated zinc oxide, 20~30 parts of talcum powder, 20~30 parts of white carbon, diluent 5
~15 parts and 1~5 part of crystalline flake graphite alkene；
Wherein B component by following material by weight：
75~85 parts of 15~25 parts of ethylenediamine and trimethylhexamethylenediamine；
Wherein crystalline flake graphite alkene follows the steps below：
a）Prepare ore pulp：Crystalline flake graphite ore deposit and water after will be broken is according to mass ratio 25~35:100 mix, and ore pulp is made；
b）Prepare flotation crystalline flake graphite：Roughing：Ore pulp is added in flotation device, addition 50~100g of butyl xanthate, stirring 3~
5min, scrape 8~15min of bubble；Once purging selection：20~40g butyl xanthates are added into ore pulp, stirs 1 minute, scrapes 3~5 points of bubble
Clock；It is secondary to scan：20~40g butyl xanthates are added into ore pulp, stirs 1 minute, scrapes bubble 3~5 minutes；Obtain flotation scale stone
Ink and mine tailing；
c）Prepare flotation essence crystalline flake graphite：Flotation crystalline flake graphite is filtered, obtains flotation essence crystalline flake graphite and filtrate；
d）Prepare crystalline flake graphite alkene liquid：By flotation essence crystalline flake graphite, 5040 dispersants and water according to mass ratio 20~50:0.1~
0.5:50~80 are added in homogenizer, at least homogeneous 1 time under the conditions of 50~75 DEG C, obtain crystalline flake graphite alkene liquid；
e）Prepare crystalline flake graphite alkene：After crystalline flake graphite alkene liquid is spray-dried, crystalline flake graphite alkene is obtained；
The epoxy resin is that epoxy resin is epoxy resin E44, furane resins, No. 6101 epoxy resin and No. 634 asphalt mixtures modified by epoxy resin
One kind or arbitrary proportion in fat it is two or more；
The diluent is alcohol, ethylene glycol diglycidylether, epoxide diluent D-678 and one kind in ethyl acetate or appointed
Meaning ratio it is two or more.
2. Wen's pipe connected pipe method of inhibiting corrosion as claimed in claim 1, it is characterised in that：Component A is pressed by following material
Formed according to parts by weight：
30 parts of epoxy resin, 15 parts of activated zinc oxide, 20 parts of talcum powder, 25 parts of white carbon, 7 parts of diluent and crystalline flake graphite alkene 3
Part；
Wherein B component by following material by weight：
80 parts of 20 parts of ethylenediamine and trimethylhexamethylenediamine；
The epoxy resin is that epoxy resin is epoxy resin E44 and No. 6101 epoxy resin according to mass ratio 2:1 composition；
The diluent is epoxide diluent D-678.
3. Wen's pipe connected pipe method of inhibiting corrosion as claimed in claim 1, it is characterised in that：Step 1）Described in tortoise plastron
Net and the gap of communicating pipe<3mm.
4. Wen's pipe connected pipe method of inhibiting corrosion as claimed in claim 1, it is characterised in that：Step d）For homogeneous 3 times, the
Homogeneous pressure is 30~40MPa, homogeneous 20min；Second of homogeneous pressure is 10~20MPa, homogeneous 20min；For the third time
Homogeneous pressure is 4~8MPa, homogeneous 20min.
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Cited By (1)
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| CN107448731B (en) | 2019-03-12 |
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