CN103267417A - High-radiation paint coating process of heat-conducting and energy-saving heating furnace - Google Patents
High-radiation paint coating process of heat-conducting and energy-saving heating furnace Download PDFInfo
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- CN103267417A CN103267417A CN2013101297650A CN201310129765A CN103267417A CN 103267417 A CN103267417 A CN 103267417A CN 2013101297650 A CN2013101297650 A CN 2013101297650A CN 201310129765 A CN201310129765 A CN 201310129765A CN 103267417 A CN103267417 A CN 103267417A
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Abstract
The invention discloses a high-radiation paint coating process of a heat-conducting and energy-saving heating furnace. A high-radiation paint layer is arranged on at least one side wall of a hearth of the heating furnace. A coating method of the high-radiation paint layer comprises the following steps: A, before the heating furnace of a resistance furnace is assembled and an electric heating element is not mounted, coating high-radiation paint on a fireproof material of the inner wall of the hearth and raising the temperature to dry to form a gray black ceramic glaze on the fireproof material; and B, with regard to a non-electric-heating type heating furnace, coating the high-radiation paint on the fireproof material of the inner wall of the hearth in a use process; and opening the furnace and raising the temperature to dry to form a gray black gray radiation face. According to the high-radiation paint coating process disclosed by the invention, the high-radiation paint is coated on the inner wall of the hearth so that energy generated in a heating process of the heating furnace is transmitted to an object to be heated by radiation through the high-radiation paint layer; and the radiation heat-transferring efficiency is improved and the energy source is saved.
Description
Technical field
The present invention relates to the high radiation paint application process of the energy-conservation heating furnace of a kind of heat transfer.
Background technology
Among the industries such as iron and steel, metallurgy, machine-building, laboratory and experimental study, resistance, combustion gas, fuel oil heating are a kind of high energy consumption equipments that generally adopts.To be the burning that relies on electricity heating original paper or oil, gaseous fuel amount to thermal energy transfer to the heat that five refractory materials absorb to (three furnace wall, one side door) around in workpiece and the burner hearth and furnace roof to the heat transfer type of heating furnace, transmits to heated workpiece (product).Usually the physical aspect of conducting heat has three; Conduction, convection current, radiation.Along with the rising radiation of temperature will become main transmission form.
Experimental results show that the heat exchange pattern of different materials changes when heating furnace is warmed up to 200C, especially the emissivity of material is changed significantly; The emissivity of iron and steel rises to 30% from 20% when being warmed up to 400C; Ceramic fibre has decline slightly from 45%, is down to 40%, 650C to 600C and drops to below 40%, drops to below 35% after the 800C; The insulating materials that has 85% high emissivity at normal temperatures is heated to 200C and drops to 80%, 400C and be down to 60%, 600C～50%, 1000C～35%; The inventor studies have shown that; " high emissivity coating " emissivity when normal temperature of preparation just reaches 80%, and increase 600C along with the rising of temperature and surpass 90%, 800-1, the 000C emissivity reaches more than 97%, when object is based on radiation delivery in heat conducting mode of medium and high temperature stage, yet various heating furnace of the prior art does not but take full advantage of radiation heat conduction.
Summary of the invention
Technical problem to be solved by this invention just provides the high radiation paint application process of the energy-conservation heating furnace of a kind of heat transfer, after by this application process heating furnace being constructed, can improve the efficient of radiant heat transfer, energy savings.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the high radiation paint application process of the energy-conservation heating furnace of a kind of heat transfer, this heating furnace comprises the body that is provided with burner hearth, it is characterized in that: at least one sidewall of described burner hearth is provided with high radiation paint layer, the smearing method of described high radiation paint layer is: A, for resistance furnace heating furnace assembling finish electrothermal part is not installed before, heat up after spreading upon high radiation paint on the inboard wall of burner hearth refractory material and toast, form the grey black Ceramic glaze at refractory material; B, for the heating furnace of non-Electric heating, high radiation paint spreads upon on the inboard wall of burner hearth refractory material in use, with the blow-on baking that heats up, forms greyish black gray radiation face then.
As preferably, the left and right sides wall of described burner hearth and inboard, Qianmen are provided with high radiation paint layer.
As preferably, the roof of described burner hearth and rear wall also are provided with high radiation paint layer.
As preferably, described heating furnace is smoke guide kiln, resistance furnace, annealing kiln, float glass technology with molten tin bath, Muffle furnace, brickmaking tunnel cave or ceramic roller kiln.
As preferably, the sidewall that described heating furnace is provided with high radiation paint layer is formed by brick the building of high radiant refractory, and described high radiant refractory brick comprises the brick body, and wherein brick dignity arranges high radiation paint layer on the side of heating furnace burner hearth.
As preferably, described brick body is provided with concaveconvex structure in the side that is coated with high radiation paint layer.
As preferably, described concaveconvex structure further groove be shaped as circular arc or many terrace with edges shape.
As preferably, the thickness of described high radiation paint layer is 0.25-0.5mm, spraying 1kg coating on each square meter furnace wall.
As preferably, smearing of described high radiation paint layer uses spray gun to operate, and its concrete steps are:
1) air compressor is connected power supply, start working;
2) the high radiation paint that different furnace walls are used pours in the spray gun, and is connected with the cylinder of air compressor;
3) pulling the spray gun spanner sprays;
4) regulate air mass flow in the spraying process, spray shapes, and coating flow are to reach the spraying effect of setting.
The present invention smears high radiation paint layer at inboard wall of burner hearth, makes the heat in the heating furnace heating process give heating object by radiation delivery by this high radiation paint layer, has improved the efficient of radiant heat transfer, has saved the energy.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 is the cross-sectional view of burner hearth among the present invention;
Structural representation when Fig. 2 sprays high radiation paint layer for the energy-conservation heating furnace of high radiant heat transfer of the present invention;
Fig. 3 is high radiant refractory brick structure schematic diagram.
The specific embodiment
Specify the concrete structure of the energy-conservation heating furnace of the high radiant heat transfer of the present invention in conjunction with Fig. 1, it comprises the body 1 that is provided with burner hearth, and the left and right sides sidewall of described burner hearth is provided with high radiation paint layer 11, and the thickness of described high radiation paint layer is 0.25-0.5mm.The inboard, Qianmen of described burner hearth also is provided with high radiation paint layer 11.The roof of described burner hearth and rear wall also are provided with high radiation paint layer 11.
High radiation paint can be coated in the furnace wall in the face of on the insulation material or other refractory materials of last one deck of processed workpiece (product) (being the inboard wall of burner hearth outermost layer), thereby, increase the heat-conductive characteristic that improves the furnace wall; When heating furnace in when heating, the high radiation paint of smearing is in the face of heated workpiece (handled product), thereby gives workpiece with the heat energy radiation delivery.
High temperature radiating coating material layer 11 have two kinds of spread form: A, for resistance furnace heating furnace assembling finish electrothermal part is not installed before, the baking that heats up after spreading upon high radiation paint on the burner hearth refractory material forms the grey black Ceramic glaze at refractory material; B, for the heating furnace of non-Electric heating, high radiation paint spreads upon on the burner hearth refractory material in use, with the blow-on baking that heats up, forms greyish black gray radiation face then.
Be to improve the heat exchange efficiency of equipment, the high radiation paint in furnace wall can according to operating position after using, show coating exist adhesion condition on the furnace wall to add to be coated with, thereby the energy-saving effect of maintenance heating furnace.
The work progress that high temperature radiating coating material is smeared is; Get high radiation paint, the about 1kg coating of each square meter, in the face of workpiece the furnace wall on daub.
Operating procedure:
1. air compressor 2 is connected power supply, start working;
2. the high radiation paint that different furnace walls are used pours in the spray gun 20, and is connected with the air compressor cylinder;
3. pulling the spray gun spanner can spray;
4. adjusting air mass flow, spray shapes, and coating flow are to reach desirable spraying effect.
Described heating furnace is smoke guide kiln, resistance furnace, annealing kiln, float glass technology molten tin bath, Muffle furnace, brickmaking tunnel cave or ceramic roller kiln.
Certainly, above-mentioned high radiation paint also can need to add local employing the on the melting furnaces of intense radiation conduction at all kinds of kilns; Also can in all kinds of boiler furnaces, adopt; Further above-mentioned high radiation paint also can adopt liquid, gas, solid-fuelled all kinds of preheatings and heating furnace to use.
Heating furnace is formed by brick the building of high radiant refractory, and as shown in Figure 3, this high radiant refractory brick comprises brick body 10, and at least one plane of described brick body is provided with high radiation paint layer.The thickness of described high radiation paint layer is 0.25-0.5mm.Described high radiation paint layer is located at brick dignity on the side of heating furnace inner chamber.
Above-mentioned refractory brick can also be done further improvement, is provided with concaveconvex structure 101 at described brick body in the side that is coated with high radiation paint layer.Concaveconvex structure is arranged and to be cellular, described concaveconvex structure further groove be shaped as circular arc or many terrace with edges shape.Increase the heat radiation area like this, improved radiation efficiency.
Claims (9)
1. high radiation paint application process of energy-conservation heating furnace that conducts heat, this heating furnace comprises the body that is provided with burner hearth, it is characterized in that: at least one sidewall of described burner hearth is provided with high radiation paint layer, the smearing method of described high radiation paint layer is: A, for resistance furnace heating furnace assembling finish electrothermal part is not installed before, heat up after spreading upon high radiation paint on the inboard wall of burner hearth refractory material and toast, form the grey black Ceramic glaze at refractory material; B, for the heating furnace of non-Electric heating, high radiation paint spreads upon on the inboard wall of burner hearth refractory material in use, with the blow-on baking that heats up, forms greyish black gray radiation face then.
2. the high radiation paint application process of the energy-conservation heating furnace of heat transfer according to claim 1, it is characterized in that: the left and right sides wall of described burner hearth and inboard, Qianmen are provided with high radiation paint layer.
3. the high radiation paint application process of the energy-conservation heating furnace of heat transfer according to claim 2, it is characterized in that: the roof of described burner hearth and rear wall also are provided with high radiation paint layer.
4. the high radiation paint application process of the energy-conservation heating furnace of heat transfer according to claim 1 is characterized in that: described heating furnace is smoke guide kiln, resistance furnace, annealing kiln, float glass technology with molten tin bath, Muffle furnace, brickmaking tunnel cave or ceramic roller kiln.
5. according to any high radiation paint application process of the energy-conservation heating furnace of described heat transfer of claim 1 to 4, it is characterized in that: the sidewall that described heating furnace is provided with high radiation paint layer is formed by brick the building of high radiant refractory, described high radiant refractory brick comprises the brick body, and wherein brick dignity arranges high radiation paint layer on the side of heating furnace burner hearth.
6. the high radiation paint application process of the energy-conservation heating furnace of heat transfer according to claim 5, it is characterized in that: described brick body is provided with concaveconvex structure in the side that is coated with high radiation paint layer.
7. the high radiation paint application process of the energy-conservation heating furnace of heat transfer according to claim 6 is characterized in that: described concaveconvex structure further groove be shaped as circular arc or many terrace with edges shape.
8. the high radiation paint application process of the energy-conservation heating furnace of heat transfer according to claim 6, it is characterized in that: the thickness of described high radiation paint layer is 0.25-0.5mm, spraying 1kg coating on each square meter furnace wall.
9. the high radiation paint application process of the energy-conservation heating furnace of heat transfer according to claim 6 is characterized in that: smearing of described high radiation paint layer uses spray gun to operate, and its concrete steps are:
1) air compressor is connected power supply, start working;
2) the high radiation paint that different furnace walls are used pours in the spray gun, and is connected with the cylinder of air compressor;
3) pulling the spray gun spanner sprays;
4) regulate air mass flow in the spraying process, spray shapes, and coating flow are to reach the spraying effect of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101297650A CN103267417A (en) | 2013-04-15 | 2013-04-15 | High-radiation paint coating process of heat-conducting and energy-saving heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101297650A CN103267417A (en) | 2013-04-15 | 2013-04-15 | High-radiation paint coating process of heat-conducting and energy-saving heating furnace |
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| CN103267417A true CN103267417A (en) | 2013-08-28 |
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| CN2013101297650A Pending CN103267417A (en) | 2013-04-15 | 2013-04-15 | High-radiation paint coating process of heat-conducting and energy-saving heating furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014206A (en) * | 2016-09-01 | 2017-08-04 | 咸阳蓝光热工科技有限公司 | Ceramic network formula inlays boiler tube and its forming method |
Citations (6)
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| CN2195745Y (en) * | 1994-06-30 | 1995-04-26 | 四川工业学院 | Strong radiative transfer energy-saving industral furnace |
| CN2229644Y (en) * | 1995-08-18 | 1996-06-19 | 北京华燕玻璃工业技术联合开发公司 | Brick for honeycomb-like lining of industry furnace |
| JPH11302723A (en) * | 1998-04-23 | 1999-11-02 | Nippon Steel Corp | Skid supporting beam and its production |
| CN201754028U (en) * | 2010-07-30 | 2011-03-02 | 北京恩吉节能科技有限公司 | Fireproof material with hearth radiating element |
| CN201785458U (en) * | 2010-09-10 | 2011-04-06 | 长沙科星纳米工程技术有限公司 | Rolled steel heating furnace based on energy-saving coating |
| CN102020475A (en) * | 2010-09-29 | 2011-04-20 | 北京安泰恒业科技有限公司 | Ceramic coating used for heating furnace |
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2013
- 2013-04-15 CN CN2013101297650A patent/CN103267417A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195745Y (en) * | 1994-06-30 | 1995-04-26 | 四川工业学院 | Strong radiative transfer energy-saving industral furnace |
| CN2229644Y (en) * | 1995-08-18 | 1996-06-19 | 北京华燕玻璃工业技术联合开发公司 | Brick for honeycomb-like lining of industry furnace |
| JPH11302723A (en) * | 1998-04-23 | 1999-11-02 | Nippon Steel Corp | Skid supporting beam and its production |
| CN201754028U (en) * | 2010-07-30 | 2011-03-02 | 北京恩吉节能科技有限公司 | Fireproof material with hearth radiating element |
| CN201785458U (en) * | 2010-09-10 | 2011-04-06 | 长沙科星纳米工程技术有限公司 | Rolled steel heating furnace based on energy-saving coating |
| CN102020475A (en) * | 2010-09-29 | 2011-04-20 | 北京安泰恒业科技有限公司 | Ceramic coating used for heating furnace |
Non-Patent Citations (1)
| Title |
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| 张奇光等: "《HRC红外辐射涂料在武钢热轧厂的应用》", 《武钢技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014206A (en) * | 2016-09-01 | 2017-08-04 | 咸阳蓝光热工科技有限公司 | Ceramic network formula inlays boiler tube and its forming method |
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Application publication date: 20130828 |