CN1046542C - High temp. and wear resistant coating for boiler soot pipeline - Google Patents
High temp. and wear resistant coating for boiler soot pipeline Download PDFInfo
- Publication number
- CN1046542C CN1046542C CN94114231A CN94114231A CN1046542C CN 1046542 C CN1046542 C CN 1046542C CN 94114231 A CN94114231 A CN 94114231A CN 94114231 A CN94114231 A CN 94114231A CN 1046542 C CN1046542 C CN 1046542C
- Authority
- CN
- China
- Prior art keywords
- agent
- high temperature
- soot pipeline
- boiler
- boiler soot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/346—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00551—Refractory coatings, e.g. for tamping
Abstract
The present invention relates to high temperature and wear resistant paint for boiler soot pipelines. The paint is prepared in a mode that aluminum hydroxide, water and industrial phosphorous acid are heated and stirred into an adhesive for being mixed with a loose wet material; the adhesive is mixed with emery, kyanite powder and kaolinite to be prepared into an agent A of high temperature and wear resistant paint for boiler soot pipelines, an agent B is silicasol. In use, the agent A and the agent B are proportionally mixed, are beaten into mud and are coated on the inner wall of a soot pipeline to form a wear resistant layer; the refractability is above 1750 DEG C, the wear resistance is high, the soot pipeline can be effectively prevented from being flushed by powder dust, and the service life and the maintenance period of the soot pipeline can be extended.
Description
The present invention relates to a kind of high temperature abrasion material, particularly a kind of high temperature abrasion material of smearing boiler soot pipeline that is exclusively used in.
Use at present with the boiler of coal as fuel, for alleviating the pollution to environment, boiler for producing producer all designs the device for eliminating smoke and dust that matches with boiler.Pipeline from boiler to the cleaning apparatus between the chimney, by the steel plate welding fabrication, inwall does not have the coating of abrasion-proof, causes the flyash of taking out of with flue gas directly to contact with inwall and produces friction.Boiler is when operation, the temperature of its flue gas is 200～600 ℃, the flyash that flue gas carries flows with the speed of 8～12 meter per seconds, as the sand inner-walls of duct that rubs tempestuously, less than a maintenance cycle promptly by wear down or worn out, influence the normal operation of boiler, also increased maintenance cost simultaneously.
The objective of the invention is to disclose a kind of high temperature abrasion material that is exclusively used in the soot pipeline inwall of smearing dust-removing device for boiler,, reduce maintenance cost to prolong the work-ing life and the maintenance cycle of soot pipeline.
The present invention realizes by following measure
The boiler soot pipeline high temperature abrasion material, it is formulated by first agent (loose wet feed) and second agent (silicon sol).
First agent (loose wet feed) be by the tackiness agent of aluminium hydroxide and water, industrial phosphoric acid production with by the mixing powder of emergy, aquamaine stone flour, kaolin production mutually mixed preparing form.
The second agent is a silicon sol.
The prescription of first agent (loose wet feed)
Prescription (weight ratio):
Aluminium hydroxide 1.08～1.40
Water 2.38～3.06
Industrial phosphoric acid 7.34～9.49 (concentration is 85%)
Emergy 70.33～73.96 (granularity 0.5～1.25mm accounts for 30～35%,
≤ 0.08mm accounts for 30～35%)
Aquamaine stone flour 2.37～2.49
Kaolin 6.33～6.65
Production technique:
Earlier with aluminium hydroxide with after water mixes, add 85% industrial phosphoric acid, under whipped state, be heated to 70～80 ℃, make it react the generation aluminium dihydrogen phosphate, till solution was clear, this solution promptly was the tackiness agent as mix first agent (loose wet feed).
In addition emergy and aquamaine stone flour, kaolin are mixed, as the mixing powder of mix first agent (loose wet feed).
The weight proportion of tackiness agent and mixing powder is: 10.78～13.95: 79.03～83.10
At last will by the tackiness agent of aluminium hydroxide and water, industrial phosphoric acid production with mix mutually by emergy, aquamaine stone flour, kaolinic mixing powder, promptly be the first agent (loose wet feed) of boiler soot pipeline high temperature abrasion material.
End formulation of boiler soot pipeline high temperature abrasion material (construction prescription) and technology:
Prescription: (weight percent)
First agent (loose wet feed) 93.02～94.34
Second agent (silicon sol) 5.66～6.98
Technology:
First agent (loose wet feed) is connect above-mentioned weight percent with second agent (silicon sol) mix, and ramming is applied on the inwall of boiler soot pipeline to the mud shape.
Internal surface with boiler soot pipeline during construction carries out the routine rust cleaning, and clean floating grey, the high temperature abrasion material that becomes the mud shape with ramming is as smearing on the inwall that sand-cement slurry spreads upon boiler soot pipeline, coat-thickness is 8～12mm, and pat closely knit, surperficial calendering, toast with blowtorch when tack-free etc. surperficial, with the boiler insulation of lighting a fire, the moisture content in the coating is discharged later on, intensity increases coating with the rising of the flue-gas temperature in the boiler soot pipeline.
Spread upon the high-temperature wearable layer on the boiler soot pipeline inwall; its refractoriness is greater than 1750 ℃, smooth surface, and wear resisting property also makes the flyash that carries with flue gas only contact with the surface of high-temperature wearable layer; protect the soot pipeline of smoke abatement device effectively, prolong maintenance cycle and working life.
Be described in further detail the present invention below in conjunction with embodiment.
Embodiment 1
Boiler smoke road high temperature abrasion material, it is formulated by first agent (loose wet feed) and second agent (silicon sol).
The first agent be by aluminium hydroxide and water, industrial phosphoric acid under the stirring heating condition, react the jelly produced with by the mixing powder of emergy, aquamaine stone flour, the kaolin production loose wet feed that forms of mixed preparing mutually in proportion.
The second agent is a silicon sol.
The prescription of first agent, production technique
Prescription (weight ratio)
Aluminium hydroxide 1.08
Water 2.38
Industrial phosphoric acid (concentration 85%) 7.34
(granularity 0.5～1.25mm accounts for 30-35% ,≤0.08mm to emergy 73.96
Account for 30～35%)
Aquamaine stone flour 2.49
Kaolin 6.65 (Suzhou product)
The weight ratio of first agent prescription is:
Aluminium hydroxide: water: industrial phosphoric acid: emergy: aquamaine stone flour: kaolin=1.08: 2.38: 7.34: 73.96: 2.49: 6.65.
Technology:
Earlier with aluminium hydroxide with after water mixes, add concentration and be 85% industrial phosphoric acid, under whipped state, be heated to 70～80 ℃, make it react the generation aluminium dihydrogen phosphate, till solution is clear.This solution is as the tackiness agent of mix first agent (loose wet feed).
Then emergy and aquamaine stone flour, kaolin are mixed, as the mixing powder of mix first agent (loose wet feed).
The weight proportion of tackiness agent and mixing powder is:
Tackiness agent: mixing powder=10.8: 83.1.
At last the tackiness agent that will produce by aluminium hydroxide and water, industrial phosphoric acid with by emergy, aquamaine stone flour, kaolinic mixing powder mix mutually, promptly are the first agent (loose wet feed) of boiler soot pipeline high temperature abrasion material.The bag or the bucket packing of plastics adopted in this first agent.
The end formulation of boiler soot pipeline high temperature abrasion material and technology
Prescription (weight percent)
First agent (loose wet feed): second agent (silicon sol)=93.9: 6.1
Technology:
First agent (loose wet feed) is mixed by above-mentioned weight percent with second agent (silicon sol), and ramming is applied on the inwall of boiler soot pipeline to the mud shape.Before smearing inner-walls of duct is carried out routine rust cleaning, and clean floating grey, with the high temperature abrasion material of smashing into the mud shape as smearing on the inwall that sand-cement slurry spreads upon boiler soot pipeline, and pat closely knit, surperficial calendering.Coat-thickness is 8～12mm.Earlier with the blowtorch baking, with the boiler insulation of lighting a fire, the moisture content in the coating is discharged later on when treating that coatingsurface is tack-free, coating raises and the intensity increase with the flue-gas temperature in the boiler smoke pipeline.
The boiler soot pipeline high temperature abrasion material of above-mentioned prescription and explained hereafter is applied in the coating of soot pipeline inwall, and its refractoriness is greater than 1750 ℃ after drying, and wear resisting property is good, can effectively protect soot pipeline, increases the service life and maintenance cycle.But bonding force is poor slightly, requires great effort when smearing.
Embodiment 2
The boiler soot pipeline high temperature abrasion material, it is formulated by first agent (loose wet feed) and second agent (silicon sol).
The first agent is to react the tackiness agent produced and emergy, aquamaine stone flour, the mutually mixed loose wet feed of kaolinic mixing powder, i.e. first agent by aluminium hydroxide and water, industrial phosphoric acid under the stirring heating condition.
The second agent is a silicon sol.
The raw material weight proportioning of first agent is:
Aluminium hydroxide: water: phosphoric acid: emergy: aquamaine stone flour: kaolin=1.40: 3.06: 9.49: 70.37: 2.37: 6.33
Technology:
Adding concentration was 85% industrial phosphoric acid after dress aluminium hydroxide mixed with water earlier, was heated to 70～80 ℃ under whipped state, made its reaction generate aluminium dihydrogen phosphate, and is clear until solution, as the tackiness agent of mix first agent (loose wet feed).
Then emergy and aquamaine stone flour, kaolin are mixed, as the mixing powder of mix first agent (loose wet feed).
The weight proportion of tackiness agent and mixing powder is:
Tackiness agent: mixing powder=13.95: 79.07
The granularity requirements of emergy and the kaolinic place of production are identical with embodiment 1.
At last will by the tackiness agent of aluminium hydroxide and water, industrial phosphoric acid production with mix mutually by above-mentioned weight proportion by emergy, aquamaine stone flour, kaolinic mixing powder, promptly be the first agent (loose temperature material) of boiler soot pipeline high temperature abrasion material.The bag or the bucket packing of plastics adopted in this first agent.
The end formulation of boiler soot pipeline high temperature abrasion material and technology.
Prescription (weight percent)
First agent (loose wet feed): second agent (silicon sol)=93.02: 6.98
Above-mentioned prescription promptly is the construction prescription.
Technology:
First agent (loose wet feed) is connect above-mentioned weight ratio with second agent (silicon sol) mix, and ramming is applied on the inwall of boiler soot pipeline to the mud shape.Before smearing inner-walls of duct is carried out routine rust cleaning, and clean floating greyly, the high temperature abrasion material that becomes the mud shape with ramming is as smearing on the even inwall that spreads upon boiler soot pipeline of sand-cement slurry, and pat closely knit, surperficial calendering.Coat-thickness is 8～12mm.Deng coatingsurface when tack-free earlier with the blowtorch baking, with the boiler insulation of lighting a fire the moisture content in the coating is discharged later on, intensity increases coating with the rising of flue-gas temperature in the boiler smoke pipeline.
The boiler soot pipeline high temperature abrasion material of above-mentioned prescription and explained hereafter is applied in the coating on the soot pipeline inwall, and its refractoriness is good greater than 1750 ℃ of wear resisting propertys after drying, can effectively protect soot pipeline, increases the service life and maintenance cycle.But coatingsurface has hair line to occur after toasting drying.
Embodiment 3 (most preferred embodiment)
The boiler soot pipeline high temperature abrasion material, it is formulated by first agent (loose wet feed) and second agent (silicon sol).
First agent (loose wet feed) is to be that 85% industrial phosphoric acid reacts the tackiness agent produced and emergy, aquamaine stone flour, the mutually mixed loose wet feed of kaolinic mixing powder, i.e. first agent under the stirring heating condition by aluminium hydroxide and water, concentration.
The second agent is a silicon sol.
The raw material weight proportioning of first agent is:
Aluminium hydroxide: water: industrial phosphoric acid: emergy: aquamaine stone flour: kaolin=1.23: 2.70: 8.34: 73.04: 2.46: 6.57
Technology:
The adding degree of depth is 85% industrial phosphoric acid after earlier aluminium hydroxide being mixed with water, is heated to 70～80 ℃ under whipped state, makes its reaction generate aluminium dihydrogen phosphate (tackiness agent), and is clear until solution, as the tackiness agent of mix first agent (loose wet feed).
Then emergy and aquamaine stone flour, kaolin are mixed, as the mixing powder of mix first agent (loose wet feed).
The weight proportion of tackiness agent and mixing powder is:
Tackiness agent: mixing powder=12.27: 82.07
The granularity requirements of emergy and the kaolinic place of production and embodiment 1, embodiment 2 is identical.
At last will be by aluminium hydroxide and water, the tackiness agent of industrial phosphoric acid production with mix mutually by emergy, aquamaine stone flour, kaolinic mixing powder, promptly be the first agent (loose wet feed) of boiler soot pipeline high temperature abrasion material.The bag or the bucket packing of plastics adopted in this first agent.
Boiler soot pipeline high temperature abrasion material end formulation and technology.
Prescription (weight percent)
First agent (loose wet feed): second agent (silicon sol)=94.34: 5.66
Above-mentioned prescription promptly is the construction prescription.Technology:
First agent (loose wet feed) is connect above-mentioned weight ratio with second agent (silicon sol) mix, and ramming is applied on the inwall of boiler soot pipeline to the mud shape.Before smearing inner-walls of duct is carried out routine rust cleaning, and clean floating greyly, the high temperature abrasion material that becomes the mud shape with ramming is as smearing on the even inwall that spreads upon soot pipeline of cement, and pat closely knit, surperficial calendering.Coat-thickness is 8～12mm.
Earlier with the blowtorch baking, with the boiler insulation of lighting a fire, the moisture content in the coating is discharged later on when treating that coatingsurface is tack-free, coating raises and the intensity increase with the flue-gas temperature in the flue.
The boiler soot pipeline high temperature abrasion material of above-mentioned prescription and explained hereafter; be applied in the coating on the soot pipeline inwall; its refractoriness is greater than 1750 ℃ after drying; the anti-mill performance of wasting is good; can effectively protect boiler soot pipeline to avoid washing away of dust; increase the service life into maintenance cycle, after toasting drying, the coatingsurface flawless.
Claims (5)
1, a kind of boiler soot pipeline high temperature abrasion material, it comprises first agent and second agent, it is characterized in that: the raw material weight ratio of first agent is
Aluminium hydroxide 1.08～1.40
Water 2.38～3.06
Industrial phosphoric acid 7.34～9.49 concentration are 85%
Emergy 70.33～73.96 granularities be 0.5～1.25mm account for 30～35%,
≤ 0.08mm accounts for 30～35%
Aquamaine stone flour 2.37～2.49
Kaolin 6.33～6.65 mixes the back with aluminium hydroxide and adds phosphoric acid with water, under whipped state, be heated to 70～80 ℃, reaction generates aluminium dihydrogen phosphate, till solution is clear, this solution is as the tackiness agent of mix first agent, with emergy, the aquamaine stone flour, kaolin mixes the mixing powder of doing the agent of mix first, the weight ratio of tackiness agent and mixing powder=10.78～13.95: 79.03～83.10, it behind the mix first agent, become loose wet feed, the second agent is a silicon sol, and the weight percent of first agent and second agent is the first agent: second agent=93.02～94.34: 5.66～6.98.
2, a kind of boiler soot pipeline high temperature abrasion material according to claim 1 is characterized in that: as producing gluing raw material weight ratio is aluminium hydroxide: water: 85% phosphoric acid=1.23: 2.70: 8.34.
3, a kind of boiler soot pipeline high temperature abrasion material according to claim 1 is characterized in that: as the weight proportion of producing mixing powder is emergy: aquamaine stone flour: kaolin=73.04: 2.46: 6.57.
4, a kind of boiler soot pipeline high temperature abrasion material according to claim 1 is characterized in that: is tackiness agent as the tackiness agent of production first agent with weight proportion as the mixing powder of production first agent: mixing powder=12.27: 82.07.
5, a kind of boiler soot pipeline high temperature abrasion material according to claim 1 is characterized in that the first agent (loose wet feed) and the weight percent of second agent (silicon sol) are first agent (loose wet feeds): second agent (silicon sol)=94.34: 5.66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94114231A CN1046542C (en) | 1994-12-18 | 1994-12-18 | High temp. and wear resistant coating for boiler soot pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94114231A CN1046542C (en) | 1994-12-18 | 1994-12-18 | High temp. and wear resistant coating for boiler soot pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1108281A CN1108281A (en) | 1995-09-13 |
| CN1046542C true CN1046542C (en) | 1999-11-17 |
Family
ID=5037134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94114231A Expired - Fee Related CN1046542C (en) | 1994-12-18 | 1994-12-18 | High temp. and wear resistant coating for boiler soot pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046542C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063206C (en) * | 1996-05-03 | 2001-03-14 | 吕瑞昌 | High temperature resisting adhesive for steel plates, production and use thereof |
| CN100494291C (en) * | 2006-04-26 | 2009-06-03 | 孙新国 | High temperature wear-resistant coating for metal surface, and its preparing method and using method |
| CN102303973B (en) * | 2011-07-25 | 2015-09-02 | 合肥科德电力表面技术有限公司 | A kind of high-temperature antiwear paint for boiler tail heating surface |
| CN102391697B (en) * | 2011-07-25 | 2015-11-25 | 合肥科德电力表面技术有限公司 | A kind of heat insulating paint for high-temperature boiler pipe |
| CN104129970B (en) * | 2014-08-18 | 2016-05-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Hot-metal bottle thermal insulation coatings |
| CN105238119A (en) * | 2015-10-20 | 2016-01-13 | 长兴宏泰耐火器材有限公司 | Novel environment-friendly fireproof coating for steel structure |
| CN105238120A (en) * | 2015-10-20 | 2016-01-13 | 长兴宏泰耐火器材有限公司 | Fireproof coating for environment-friendly composite floor |
| CN113214688B (en) * | 2021-05-28 | 2021-12-24 | 德清绿能热电有限公司 | Anti-ash boiler |
| CN114105616B (en) * | 2021-11-30 | 2023-11-14 | 中钢集团洛阳耐火材料研究院有限公司 | Rocket launching platform low-loss protective material |
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| JPS5639672B2 (en) * | 1974-03-29 | 1981-09-14 | ||
| CN1031708A (en) * | 1987-09-04 | 1989-03-15 | 北京工业学院 | Intumescence, transparent, water-soluble fire retardant coating and manufacturing process |
| CN1052878A (en) * | 1989-12-27 | 1991-07-10 | 冶金部洛阳耐火材料研究院 | Anti-oxidation coating for graphite electrode |
| CN1015848B (en) * | 1989-05-29 | 1992-03-11 | 三菱电机株式会社 | Pwm conversion apparatus |
-
1994
- 1994-12-18 CN CN94114231A patent/CN1046542C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5639672B2 (en) * | 1974-03-29 | 1981-09-14 | ||
| CN1031708A (en) * | 1987-09-04 | 1989-03-15 | 北京工业学院 | Intumescence, transparent, water-soluble fire retardant coating and manufacturing process |
| CN1015848B (en) * | 1989-05-29 | 1992-03-11 | 三菱电机株式会社 | Pwm conversion apparatus |
| CN1052878A (en) * | 1989-12-27 | 1991-07-10 | 冶金部洛阳耐火材料研究院 | Anti-oxidation coating for graphite electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1108281A (en) | 1995-09-13 |
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