CN1087844A - The spraying method of refractory fiber floor and the flame retardant coating that makes thus - Google Patents
The spraying method of refractory fiber floor and the flame retardant coating that makes thus Download PDFInfo
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- CN1087844A CN1087844A CN 93119438 CN93119438A CN1087844A CN 1087844 A CN1087844 A CN 1087844A CN 93119438 CN93119438 CN 93119438 CN 93119438 A CN93119438 A CN 93119438A CN 1087844 A CN1087844 A CN 1087844A
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Abstract
A kind of refractory fibrous material is sprayed to the method for substrate surface, this method is mainly by the preliminary treatment to refractory fibre, will and of the present inventionly form bond by colloidal sol, organic matter and additive and be ejected into surface to be sprayed through pretreated fiber then.Method of the present invention has the advantages that speed of application is fast, environmental pollution is little, applicability is wide.The refractory insulating layer overall performance that is obtained by this spraying method is good, and energy-saving effect is remarkable.
Description
The present invention relates to the technical field of sprayed surface, more particularly relate to refractory fibrous material and the method that makes the bonding bond of fiber by spraying are formed flame retardant coating from the teeth outwards.
Refractory fibre has been widely used in industries such as metallurgy, machinery, petrochemical industry and electronics light industry with its obvious energy-saving effect and good serviceability.And the refractory fibre furnace lining has been widely used in the Thermal Equipment of the kiln of metal processing and industries such as heat treatment, chemical industry and pottery, both can be used as furnace lining material, also can be used as heat-barrier material, at present domestic as the construction method of refractory fiber floor furnace lining is that layer spread method, the addition method, veneer method or the like manual manipulation method carries out site operation.Have between the flame retardant coating surface that all there are long construction period in these methods, make and flame retardant coating and the substrate slit, to abnormity complex-curvedly be difficult to construction, globality is poor, fails to give full play to the advantage of refractory fiber floor.The external technology of developing the spraying application refractory fiber floor in recent years gradually as U.S. Pat 4,547,403, discloses in this technology and has adopted spraying equipment that refractory fibre and suitable bond are ejected on the surface of required flame retardant coating.U.S. Pat 4,664 discloses a kind of method of spraying application refractory fibre in 969, and record in this method has been owing to adopted the adhesive of alpha-aluminium oxide, thereby has solved adhesion problem between flame retardant coating and the substrate.U.S. Pat 4,770 discloses a kind of method and apparatus of spraying application refractory fiber floor in 707, oozes the medium that has mixed some toughness effects in the bond wherein.But the such shortcoming of ubiquity in the document of above-mentioned relevant refractory fiber spraying construction method, promptly construction environment is poor, the labour intensity height, because the fiber fine fleece of lightweight is easy to fly upward in air, the high pollution of micro fiber concentration is serious in the construction environment.From above-mentioned patent specification and accompanying drawing, also can find out,, must put on the breathing apparatus of fully closed protection clothing and heaviness during spraying application operating personnel field operation and operate because construction environment is abominable.Because refractory fibre is by Al
2O
3, SiO
2, TiO
2Form Deng inorganic matter, when back in the suction body is difficult for drainage, depend on respiratory system be easy to respiratory tract system disease, as anthraco-silicosis.Now, people are to healthy, hygienic requirements pay attention to day by day, and it is more and more higher that labor protection is claimed, and how to improve the spraying application environment, reduce labour intensity, and the concentration that reduces the fiber suede in the operating environment is the anxious problem that solves that waits; In addition, exist cost height, characteristics that consumption is big at above-mentioned bond of the prior art, the existence of excessive bond in refractory fibre influenced heat insulation, the heat-insulating property of refractory fibre itself.
The inventor studies at the problems referred to above, by refractory fibre is carried out preliminary treatment before spraying, has improved the surface property of refractory fiber floor; Work out a kind of new bond and above-mentioned pretreated refractory fibre combination simultaneously, make the spraying application enhancement of environment, the microfibre concentration in the environment is lower than the labour protection requirement; The use of other bond makes that cost reduces, speed of application is accelerated, easy construction, and the construction later stage need not to carry out subsequent treatment and promptly finishes whole construction course.
Thereby purpose of the present invention just provides a kind of spray-finishing construction method of improved refractory fiber floor, and the present invention also provides a kind of bond that makes refractory fibre that good combination be arranged; And then the present invention also makes the refractory fiber floor that is made by construction method of the present invention.
Be detailed description of the invention below.
Of the present invention with refractory fibre with the bond that matches with it and use, the spray-finishing construction method that sprays on the surperficial lining is made up of following processing step:
1, fiber to be sprayed is carried out preliminary treatment;
2, bond of the present invention evenly is ejected in the above-mentioned pretreated fiber, then with directive surface to be sprayed on the combined dose of refractory fibre bundle that evenly applies.
3, to spray flame retardant coating be cured.
The fiber that can adopt spraying method of the present invention to spray comprises various types of fiber; as insulation, heat insulation, fire-resistant; materials such as concrete example such as mineral wool, rock wool, glass fibre, common alumina silicate fibre, high-purity, high aluminum fiber, this is all within the claimed scope of spraying method of the present invention.Below whole spray-finishing construction method is further elaborated.
(1) preprocessing process
Refractory fibre is a kind of lightweight fine fleece, and general diameter is at 2-4 μ m, and length is at 50-200mm, and unit weight is at 20kg/m
3Below, in spray-finishing construction method in the past, because the light weight of these microfibres own, the high velocity air in the course of injection impacts in addition again, and these fine fibres fly upward disperse in construction environment, because the light weight of fine fleece fiber own, fast gas shock in the course of injection in addition again, these fine fibres fly upward disperse in construction environment, because aerial suspension of fine fleece fiber and fiber own is tiny, must be with mask, otherwise totally unfavorable to operator's health.The preprocess method of the fiber of inventor's research is to adopt the pretreatment fluid that contains non-ionic surface active agent of the present invention to be injected to carry out preliminary treatment in the fiber, described pretreatment fluid is water-soluble by having, and fiber is had wetting power and the good aqueous surfactant solution composition of dispersion force.Available non-ionic surface active agent, as (1) polyoxyethylene alcohol ethers, as polyoxyethylene aliphatic alcohol ether, peregal os-15, paregal O S-20, peregal A-20; (2) polyoxyethylated alkyl phenol class, as OP-4, O-7, OP-10; (3) polyethenoxy ether class, as span-80, span60; (4) polyethylene glycols, as polyethylene glycol (300) monoleate, polyethylene glycol (400) monostearate.This pretreatment fluid is to adopt above-mentioned nonionic surface active agent mixture a kind of or that be made up of more than one material, and its content is the weight percentage of 0.1-5%.
To the preprocess method of fiber is that part by weight with above-mentioned pretreatment fluid that makes and fiber is 1: the ratio of 5-30 sprays etc. on the fiber of handling equably, leaves standstill to get final product in 5-10 minute.
By refractory fibre to be sprayed is carried out above-mentioned processing, make and fabulous wetting and dispersive property is arranged through pretreated fiber, in spraying process, be easy to mix with bond is full and uniform, combined dose of capture, thereby greatly reduce the escaped quantity of fiber in the spraying application process, and then reduced the concentration of fiber in environment, and make that the operator can operation in general construction environment, need not any special labour protection equipment can construct; Increase through pretreatment of fiber intensity in addition, test shows through pretreated and makes that the flame retardant coating globality improves, intensity is good, air-tightness is good.
(2) spraying application process
Bond of the present invention is a kind of composite suspension liquid that is composited by organic matter, inorganic matter and additive, and this bond is by (A) inorganic matter, i.e. colloidal sol accounts for the 0.5-10% of gross weight; This colloidal sol can be waterglass, Ludox and Al
2O
3Among a kind of colloidal sol or multiple mixture; (B) organic matter is one or more following material: acrylamide, hydroxyethylcellulose, CMC and carboxyethyl cellulose; It accounts for the 0.1-5% of gross weight; Another kind of (C) prodan additive, its addition is 0.01-0.5%, all the other are water.
With the part by weight of bond and fiber is 1: 0.3-2.0, preferably 1: the 0.6-1.2 scope is used.Adopt flush coater that bond is sprayed on the refractory fibre equably.The refractory fibre that will be coated with bond then is ejected on the scope of operation, reaches predetermined coating thickness, promptly finishes spraying process.
Bond of the present invention with through pretreated fiber fabulous penetration is arranged, when bond and pretreated fiber meet, bond can be dispersed in the fiber, makes the good knot of handing between fiber and the fiber, reduce the fiber fine fleece and fly upward, between the fiber and between fiber and the spraying face to combining well.By the usage ratio of bond and fiber as seen, have the few characteristics of consumption at bond of the present invention.
(3) flame retardant coating that has made is solidified
Owing to adopted pretreated fiber of the present invention and bond to be used, the consumption of bond is few, and bond with can be uniformly distributed in the fiber, and make between the fiber adhesion strong, under normal temperature condition, just can use after the air dry, need not special solidifying the crust stage; High humility and low temperature environment, can be earlier with spray flame retardant coating be heated to 450 ℃ in advance, be incubated and heat up freely again after 8 hours that then effect is better.
Adopt the flame retardant coating of the method gained of spraying application flame retardant coating of the present invention to compare the flat appearance densification with other refractory fibre furnace linings; Owing to adopted pre-treatment step and bond good integral strength; Because the disposable spray finishing construction operation, thereby the furnace lining that forms does not have seam, air-tightness is good.Cost reduces 10%-20%, and following table has provided common alumina silicate fibre, the performance of the spray refractory layer of high aluminum fiber and rock wool.
The inventive method makes the performance of spray refractory layer
Below with specific embodiment explanation the present invention.
Carry out the sprayed fire-resistant fiber construction on the hydrogenation heating furnace to Jinzhou Petrochemical Co., adopt the 0-200 flush coater of U.S. Unisil company to carry out spraying application, used refractory fibre is a high aluminum fiber, diameter 2-4 μ m, fibre length 50-100mm is with containing 4% OP-4(polyoxyethylene aliphatic alcohol ether) the ratio of treatment fluid fiber to carry out pretreatment of fiber at 1: 20.By Ludox 5%(weight), carboxymethyl cellulose 2%(weight) and prodan 0.2%(weight) the formulated bond aqueous solution with fiber to mix spraying, furnace roof area 30m at 1: 1
2, coating thickness 180mm; Stove end wall area 22m2, coating thickness 80mm, with the spraying construction that the rear surface flattens, whole furnace lining is promptly finished in press polish, air dry can heat up with the stove heating curve subsequently.
Shared 16 hours of integral spray flag worker, the outward appearance of the stove after the construction is evenly smooth, the disposable spray finishing moulding, good integrity shows that through the device operation furnace outer wall temperature reduces, energy-saving effect is obvious.
The performance of the spray refractory layer furnace lining after sampling Detection is as follows
Thermal conductivity factor (W/m.k) 0.10
(℃) 901 ℃ of hot sides
Heater wire shrinks (%)-1.7
℃×h 1200×6
Unit weight kg/m
3244
Since above-mentioned to explanation of the present invention as seen, because unique preliminary treatment process of the present invention and bond, so that the method for sprayed fire-resistant fiber of the present invention and existing method have following remarkable advantage: speed of application is fast, construction is simple, construction environment is good, labour intensity is low, globality improves, air-tightness is good, applicable to the construction of various special-shaped faces. In addition good owing to adopting spraying application method of the present invention to make the flame retardant coating overall performance, so that the skin temperature variation is little, effect of heat insulation is remarkable, compare with the flame retardant coating that additive method makes, phase fuel saving 30%, energy-saving effect reaches 10-30%, has good overall economic efficiency.
Claims (11)
1, a kind of refractory fiber spraying is formed the method for flame retardant coating to the surperficial lining, it is characterized in that this method is made up of following steps:
(1) earlier fiber to be sprayed is handled with pretreatment fluid;
(2) then bond is evenly sprayed in the above-mentioned pretreated refractory fibre, then with combined dose of refractory fibre beam that evenly applies on surface to be sprayed;
(3) to spray flame retardant coating be cured.
2, according to the process of claim 1 wherein that the treatment fluid described in (1) is by containing 0.1-5%(weight) the aqueous solution of non-ionic surface active agent form.
3, according to the method for claim 2, non-ionic surface washing agent wherein is to be selected from polyoxyethylene alcohol ethers, polyoxyethylated alkyl phenol class, polyethenoxy ether class and polyethylene glycols.
4, according to the process of claim 1 wherein that pretreatment fluid in (1) step and pending refractory fibre consumption part by weight are 1: 5-30.
5, method according to claim 1, bond wherein is by containing (A) 0.5-10%(weight), be selected from waterglass, Ludox and Al
2O
3A kind of or its mixture of glue; (B) 0.1-5% weight is selected from a kind of of acrylamide, hydroxyethylcellulose, CMC and carboxyethyl cellulose or its two or more at least mixture; (C) prodan 0.01-0.5%(weight) and all the other are that water is formed.
6, according to the process of claim 1 wherein that bond and pretreated fiber consumption ratio (weight) in the step (2) are 1: 0.3-2.0, preferable range is 1: 0.6-1.2.
7, according to the process of claim 1 wherein that (3) step is with after the refractory fiber floor air dry after the spraying, together heats with the substrate heating curve.
8, according to the process of claim 1 wherein (3) step can adopt can be earlier with spray flame retardant coating be heated to 450 ℃ in advance, be incubated and together heat up with substrate again after 8 hours.
9, according to the process of claim 1 wherein that described refractory fibre can also be to have insulation, heat insulation, the mineral wool of fire resistance, rock wool, glass fibre, common alumina silicate fibre, high-purity, high aluminum fiber.
10, a kind of goods is characterized in that the flame retardant coating that one deck is obtained by claim 1,2 or 5 spraying methods has been adhered on the surface of these goods.
11, a kind of goods is characterized in that the flame retardant coating that this product surface has one deck to make according to the method for claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93119438 CN1033310C (en) | 1993-10-29 | 1993-10-29 | Spraying coating method for refractory fibre layer and refractory layer thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93119438 CN1033310C (en) | 1993-10-29 | 1993-10-29 | Spraying coating method for refractory fibre layer and refractory layer thereby |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1087844A true CN1087844A (en) | 1994-06-15 |
| CN1033310C CN1033310C (en) | 1996-11-20 |
Family
ID=4992915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93119438 Expired - Fee Related CN1033310C (en) | 1993-10-29 | 1993-10-29 | Spraying coating method for refractory fibre layer and refractory layer thereby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033310C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535259A (en) * | 2011-12-29 | 2012-07-04 | 洛阳理工学院 | Aluminum-fibre surface felt and preparation method thereof |
| CN102719124A (en) * | 2012-05-29 | 2012-10-10 | 吴江市信许塑料鞋用配套有限公司 | Fire-preventing thermal-insulating coating on fire-fighting shoe vamp |
| CN103755367A (en) * | 2014-01-15 | 2014-04-30 | 河北星铭机械科技有限公司 | Special high-temperature resistant coating for high-temperature heating furnace, high-temperature heating furnace lining and application in high-temperature heating furnace lining |
| CN108178643A (en) * | 2018-01-27 | 2018-06-19 | 巩义市亿隆耐火材料厂 | A kind of surface spraying material of tundish cover metal framework and anchoring piece and preparation method thereof |
| CN110407595A (en) * | 2019-08-29 | 2019-11-05 | 云南濮耐昆钢高温材料有限公司 | A kind of composite anti-explosion high-strength refractory castable |
| CN112266660A (en) * | 2020-10-28 | 2021-01-26 | 淄博雨程节能环保科技有限公司 | Refractory fiber coating produced by utilizing refractory fiber waste and preparation method and application thereof |
| CN113800894A (en) * | 2021-09-15 | 2021-12-17 | 武汉钢铁有限公司 | Light high-strength refractory castable |
-
1993
- 1993-10-29 CN CN 93119438 patent/CN1033310C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535259A (en) * | 2011-12-29 | 2012-07-04 | 洛阳理工学院 | Aluminum-fibre surface felt and preparation method thereof |
| CN102719124A (en) * | 2012-05-29 | 2012-10-10 | 吴江市信许塑料鞋用配套有限公司 | Fire-preventing thermal-insulating coating on fire-fighting shoe vamp |
| CN103755367A (en) * | 2014-01-15 | 2014-04-30 | 河北星铭机械科技有限公司 | Special high-temperature resistant coating for high-temperature heating furnace, high-temperature heating furnace lining and application in high-temperature heating furnace lining |
| CN108178643A (en) * | 2018-01-27 | 2018-06-19 | 巩义市亿隆耐火材料厂 | A kind of surface spraying material of tundish cover metal framework and anchoring piece and preparation method thereof |
| CN108178643B (en) * | 2018-01-27 | 2020-11-10 | 巩义市亿隆耐火材料厂 | Surface spray coating of metal frame and anchoring piece for tundish cover and preparation method thereof |
| CN110407595A (en) * | 2019-08-29 | 2019-11-05 | 云南濮耐昆钢高温材料有限公司 | A kind of composite anti-explosion high-strength refractory castable |
| CN112266660A (en) * | 2020-10-28 | 2021-01-26 | 淄博雨程节能环保科技有限公司 | Refractory fiber coating produced by utilizing refractory fiber waste and preparation method and application thereof |
| CN113800894A (en) * | 2021-09-15 | 2021-12-17 | 武汉钢铁有限公司 | Light high-strength refractory castable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033310C (en) | 1996-11-20 |
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