CN103073225A - Method for prolonging service life of metal burner - Google Patents
Method for prolonging service life of metal burner Download PDFInfo
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- CN103073225A CN103073225A CN2012105799187A CN201210579918A CN103073225A CN 103073225 A CN103073225 A CN 103073225A CN 2012105799187 A CN2012105799187 A CN 2012105799187A CN 201210579918 A CN201210579918 A CN 201210579918A CN 103073225 A CN103073225 A CN 103073225A
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- metal burner
- burner
- chromium corundum
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Abstract
The invention provides a method for prolonging the service life of a metal burner. The outer surface of the metal burner to be coated or the easily burnt surface thereof is cleaned; a chrome corundum coating material is scraped on the outer surface of the metal burner or the easily burnt surface thereof to form a chrome corundum coating layer; the coating layer is moisturized at the room temperature and nursed for 48 hours; and the baking is started after the nursing is implemented for 48 hours until the baking is finished. The method is simple and reliable, has low cost and good effect, and can prolong the service life of the metal burner to one year or even longer.
Description
Technical field
The present invention relates to a kind of prolongation metal burner (burner) method in work-ing life.
Background technology
The effect of burner (burner) is with fuel and oxygen, by sending into burner hearth after desired condition (concentration, speed, turbulivity and the angle etc.) mixing, make fuel stable ignition and burning in burner hearth, at needs fuel combustion is all needed with burner (burner) with the occasion that adds thermal material or reaction.The environment for use of metal burner all is High Temperature High Pressure usually, combustion gases corrodibility is strong, be subjected to the severe environment such as fluid scouring serious wear, and then cause metallic substance damaged, cause the metal burner to use, and then affecting the long-time safety in production of enterprise, enterprise needs stop production to overhaul, has a strong impact on the economic benefit of enterprise.
The form of burner (burner) combustible medium is divided into fuel oil, combustion gas (coal gas) substantially, coal-fired (coal dust/coal water slurry) three major types is other.And that the material of making burner (burner) also has is multiple, uses more all employings metallic substance manufacturing and forms.Usually the burning top temperature of fuel can reach about 2000～3000 ℃, and the temperature tolerance of metallic substance own has certain restriction, and present known the highest high temperature resistant the reaching about 1200 ℃ of metallic substance is far below the temperature of combustion of fuel.The metal burner is because the restriction of the performance of himself manufactured materials own, can't satisfy that product is long-time, the requirement of high reliability, therefore just retrained working conditions and the work-ing life of burner (burner).
Summary of the invention
The purpose of this invention is to provide a kind of metal burner method in work-ing life that prolongs, the method is simple and reliable, and cost is low, and is effective, can make the metal burner extend to 1 year or longer work-ing life.
Technical scheme of the present invention is: a kind of metal burner method in work-ing life that prolongs, it is characterized in that the removing surface of metal burner outside surface to be applied or the easy scaling loss of metal burner totally, the chromium corundum coating scraped form the chromium corundum coating on the surface that is put on metal burner outside surface or the easy scaling loss of metal burner; Smeared rear normal temperature moisture-keeping maintaining 48 hours; 48 hours begin baking after the maintenance, until baking finishes.
Wherein the baking processing system is: will be coated with the metal burner position that wipes the chromium corundum coating and be heated to 80 ℃ in the mode that per hour is not higher than 20 ℃ of temperature rises, be incubated after 24 hours, be heated to 120 ℃ in the mode that per hour is not higher than 5 ℃ of temperature rises again, be incubated again 48 hours and get final product.
Wherein the chromium corundum coating is to add the stirring of phosphoric acid resinoid bond by the chromium corundum powder to form, and its proportioning is the chromium corundum powder by weight: phosphoric acid resin=100:10～10.5.
Can also be provided with on the surface of metal burner outside surface or the easy scaling loss of metal burner the pawl nail, the pawl nail is rectangular parallelepiped or "T"-shaped structure, and the height of pawl nail equals 50%～80% of chromium corundum coat-thickness simultaneously.
The present invention has the following advantages:
The present invention utilizes chromium corundum coating high temperature resistance; the advantage of sherardizing steel forms layer protecting film at metal burner outside surface, adheres to for a long time metal material surface; thereby greatly prolonged the work-ing life of metal burner, for enterprise saves the repair and maintenance cost.The advantages such as simultaneously, it is simple that the present invention has technique, and cost is low, and effect is remarkable can make the metal burner prolong 1 year or longer work-ing life.
Description of drawings
Fig. 1 is burner (burner) structural representation sketch.
Fig. 2 is the structural representation of pawl nail.
Embodiment
At present, the high temperature material fast development comprises refractory materials and heat-stable material, and mineral compound is arranged, and macromolecule polymer material etc. is also arranged.But in its use procedure, be subjected to the impact of the aspects such as its chemical action (material erosion, slag corrosion etc.), physical action (wash away, thermal expansion, thermal shocking, melting etc.), human factor (match improper, improper use etc.), often do not reach ideal effect.The environment for use of metal burner (burner) mainly is the corrosion under the High Temperature High Pressure and the mal-condition such as washes away, simultaneously, metal burner (burner) self has again the characteristics of surface volume less, therefore just require high temperature material at first can not adopt the mode of common big area cast, smear form of construction work and will adopt; It is less important to satisfy the special environment for use of metal burner (burner); Last high temperature material will be constructed with good bonding strength with the metal-made of metal burner, adhere to for a long time metal material surface, can improve metal burner environment for use, improves its work-ing life.
The chromium corundum coating has high temperature resistant, good heat-insulation effect, the advantages such as while high temperature resistance air scour.As shown in Figure 1, therefore with such applying material at metal burner 1(burner) outside surface or metal burner 1(burner) and easily the surface of scaling loss form chromium corundum coating 2, just can greatly prolong working conditions and the work-ing life of metallic substance, namely prolong the work-ing life of metal burner 1 (burner).
In order to increase the bonding strength of chromium corundum coating and metallic substance, metal material surface needs the pawl nail 3 of some amount, as shown in Figure 2.Pawl nail 3 adopts rectangular parallelepiped usually, for the bonding strength of further enhancing pawl nail 3 with the chromium corundum coating, also can adopt "T"-shaped structure.The thickness H1=50% of while pawl nail 3～80% chromium corundum coat-thickness H2.The material of pawl nail 3 is not less than metal burner (burner) and makes material.
Wherein the chromium corundum coating is to add the stirring of phosphoric acid resinoid bond by the chromium corundum powder to form, and its proportioning is by weight: the chromium corundum powder: phosphoric acid resin=100:10～10.5.Must be controlled in the above-mentioned desired scope in conjunction with dosage.
The production process of chromium corundum coating is as follows: at first will the chromium corundum powder add in the stirrer and stirred 2～3 minutes, then add behind the phosphoric acid resinoid bond restir 5～7 minutes and get final product.
Constructional method is as follows:
1, metal burner nozzle site surface to be applied is cleaned out.
When 2, smearing, from bottom to top required chromium corundum coating is scraped along the metal burner with spatula and to be put on the metal burner surface, smear successively 2～3 times, then suitably floating with spatula.
Maintenance and thermal treatment:
1, smeared rear normal temperature moisture-keeping maintaining 48 hours.
2, began baking after the maintenance in 48 hours.
3, the baking processing system is:
Claims (4)
1. one kind prolongs the metal burner method in work-ing life, it is characterized in that the removing surface of metal burner (1) outside surface to be applied or the easy scaling loss of metal burner totally, the chromium corundum coating scraped form chromium corundum coating (2) on the surface that is put on metal burner (1) outside surface or the easy scaling loss of metal burner; Smeared rear normal temperature moisture-keeping maintaining 48 hours; 48 hours begin baking after the maintenance, until baking finishes.
2. a kind of metal burner method in work-ing life that prolongs as claimed in claim 1, it is characterized in that the baking processing system is: will be coated with the metal burner position that wipes the chromium corundum coating and be heated to 80 ℃ in the mode that per hour is not higher than 20 ℃ of temperature rises, be incubated after 24 hours, be heated to 120 ℃ in the mode that per hour is not higher than 5 ℃ of temperature rises again, be incubated again 48 hours and get final product.
3. a kind of metal burner method in work-ing life that prolongs as claimed in claim 1, it is characterized in that the chromium corundum coating is to add the stirring of phosphoric acid resinoid bond by the chromium corundum powder to form, its proportioning is the chromium corundum powder by weight: phosphoric acid resin=100:10～10.5.
4. a kind of metal burner method in work-ing life that prolongs as claimed in claim 1, it is characterized in that being provided with pawl on the surface of metal burner (1) outside surface or the easy scaling loss of metal burner follows closely (3), pawl nail (3) is rectangular parallelepiped or "T"-shaped structure, and the height of pawl nail equals 50%～80% of chromium corundum coating (2) thickness simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105799187A CN103073225A (en) | 2012-12-27 | 2012-12-27 | Method for prolonging service life of metal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105799187A CN103073225A (en) | 2012-12-27 | 2012-12-27 | Method for prolonging service life of metal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103073225A true CN103073225A (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105799187A Pending CN103073225A (en) | 2012-12-27 | 2012-12-27 | Method for prolonging service life of metal burner |
Country Status (1)
| Country | Link |
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| CN (1) | CN103073225A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257051A (en) * | 1998-12-11 | 2000-06-21 | 王永利 | Unfired chromium corundum refractory material products |
| CN101709229A (en) * | 2009-12-04 | 2010-05-19 | 北京航天动力研究所 | Coal water slurry process burner with long service life and method for manufacturing same |
-
2012
- 2012-12-27 CN CN2012105799187A patent/CN103073225A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257051A (en) * | 1998-12-11 | 2000-06-21 | 王永利 | Unfired chromium corundum refractory material products |
| CN101709229A (en) * | 2009-12-04 | 2010-05-19 | 北京航天动力研究所 | Coal water slurry process burner with long service life and method for manufacturing same |
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Application publication date: 20130501 |