CN201926322U - Waste heat recovery device of industrial kiln - Google Patents
Waste heat recovery device of industrial kiln Download PDFInfo
- Publication number
- CN201926322U CN201926322U CN2011200258405U CN201120025840U CN201926322U CN 201926322 U CN201926322 U CN 201926322U CN 2011200258405 U CN2011200258405 U CN 2011200258405U CN 201120025840 U CN201120025840 U CN 201120025840U CN 201926322 U CN201926322 U CN 201926322U
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- China
- Prior art keywords
- waste heat
- metal
- kiln
- heat
- retracting device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model discloses a surface radiation waste heat recovery device of a large rotary industrial kiln, and a heat radiation absorbing device is arranged outside a kiln body. The heat radiation absorbing device comprises at least one axial line and metal heat absorption tubes parallel with the axial line of the industrial kiln, wherein the metal heat absorption tubes are distributed along the circumferential direction of the kiln body to form a metal heat absorption tube array; the metal heat absorption tubes are metal finned tubes; and the distance between the metal heat absorption tubes and the surface of the industrial kiln body is 20 cm to 50 cm. In the utility model, the heat radiation absorbing device is arranged outside the kiln body, thereby effectively recovering and utilizing the heat lost by the surface radiation of the kiln body and improving the waste heat recovery rate of the industrial kiln; not only the fuel cost is saved, but also the heat is prevented from being diffused into the atmosphere to cause global warming, so that the waste heat recovery device for the industrial kiln is beneficial for environmental protection.
Description
Technical field
The utility model relates to a kind of heat collection device of huge revolving Industrial Stoves, particularly a kind of retracting device of Industrial Stoves body surface radiations heat energy.
Background technology
The energy is the important substance basis of development national economy, is the necessary condition that the mankind depend on for existence, and the development and utilization degree direct influence of the energy the raising of the development and national economy and the people's material and cultural life level.China is second-biggest-in-the-world production of energy state and second largest energy-consuming state, and Chinese population is numerous, and the occupancy volume per person of energy resources only is equivalent to 51% of world's average.Energy-conservation have a very realistic meanings.Energy crisis causes fuel crunch, fuel cost to go up, and seriously prestige is being assisted the development of production and the needs of people's lives, so an urgent demand people tap a new source of energy and save the existing energy.
Waste heat recovery is the very important problems in aspect such as reasonable energy utilization, energy savings, raising energy utilization rate.At present, in industrial each department, a large amount of heating furnaces, kiln, Industrial Boiler etc. are arranged, its surface emissivity temperature is between 200～500 ℃, the radiation waste heat does not obtain to make full use of, cause the serious waste of the energy, therefore, the development of effective waste-heat recovery device is the effective means that the energy is rationally utilized.In the prior art, part industry or enterprise have taked heat recovery technology that the waste heat in the industrial processes is recycled, for example, the part cement plant utilizes the waste heat in the cement production process to build the power station, the electric power that send in the power station is back to manufacture of cement, in a large amount of waste heats that this heat recovery technology produces, reduced thermal pollution and the dust pollution of cement plant again in reclaiming cement production process, brought huge economic benefit and environmental benefit to enterprise to environment.
But the technology that existing waste heat recovery is generally adopted is by air-extractor utilization the such as directly high-temperature gas of industry kiln inside such as rotary kiln, boiler is carried out that extraction is generated electricity.Yet very limited by the heat that this method effectively reclaims, its final utilization rate only is equivalent to 1/3rd of external similar enterprise.Most of heat is lost in the atmosphere by the mode of surfaces such as kiln body, body of heater by radiation, is underutilized.For example, by certain rotary cement kiln is carried out actual measurement, the rotary kiln section outer wall observed temperature of production line is 330～350 ℃ (apart from equipment surface 30cm), and this section heat continuous radiation, finally is lost in the atmosphere.
At above-mentioned deficiency, need a kind of heat recovery technology of research, can fully fully recycle the heat of kiln body or body of heater surface emissivity, improve the organic efficiency of industrial production waste heat.
The utility model content
In view of this, the purpose of this utility model provides a kind of kiln waste heat retracting device, can fully recycle kiln body surface radiation dispersed heat, improves kiln waste heat and recycles efficient, economic environmental protection.
The purpose of this utility model is achieved through the following technical solutions: a kind of kiln waste heat retracting device, the external heat radiation absorption plant that is provided with of Industrial Stoves.
Further, described heat radiation absorption plant comprises the metal heat absorption tube that at least one axis is parallel with the axis of Industrial Stoves, and metal heat absorption tube circumferentially distributes along the kiln body and forms curved metal endothermic tube array;
Further, described metal heat absorption tube is the metal fin pipe;
Further, the distance of described metal heat absorption tube and Industrial Stoves body surface is 20cm-50cm;
Further, described curved metal endothermic tube array partly wrap up or all parcel to be arranged on Industrial Stoves external;
Further, described curved metal endothermic tube array is two superimposed distribution at least;
Further, adopt resistant to elevated temperatures pad to be connected between the metal heat absorption tube by flangeseal;
Further, described metal heat absorption tube is fixed by support, and support adopts symmetrical structure.
The beneficial effects of the utility model: kiln waste heat retracting device of the present utility model, because at the external heat radiation absorption plant that is provided with of kiln, can effectively kiln body surface radiation dispersed heat be recycled, improved the kiln waste heat recovery utilization rate; Not only saved cost, caused climate warming in the atmosphere, helped environmental protection but also prevent that heat from directly scattering to.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the cross-sectional structure schematic diagram of embodiment 1;
Fig. 2 is the cross-sectional structure schematic diagram of embodiment 2.
The specific embodiment
Embodiment 1:
As shown in Figure 1, kiln waste heat retracting device of the present utility model, be outside equipped with 13 metal heat absorption tubes 2 at industry kiln body of heater 1, the axis of metal heat absorption tube 2 is parallel with the axis of Industrial Stoves, metal heat absorption tube 2 circumferentially distributes along the kiln body and forms the semicircular arc metal heat absorption tube array that raises up, and between the surface of metal heat absorption tube 2 and Industrial Stoves 1 body surface is 20cm apart from a.This waste-heat recovery device cooperates and existingly to utilize waste heat to carry out steam-turbine power plant to use, the heat that kiln waste heat retracting device of the present utility model is collected is used for pre-Hot gas turbine condensate water, be used, improved the kiln waste heat recovery utilization rate; Not only saved cost, caused climate warming in the atmosphere, helped environmental protection but also prevent that heat from directly scattering to.With production line of Chongqing City's cement production enterprise is example: the emittance 3.42kw that rotary kiln is every square metre, 68 square metres the energy work rate 232kw that is covered in 70% acceptance rate, per hour can issue additional 174 degree.Then a year acquisition economic benefit is: 232 * 24 * 300 * 0.5=626400 unit; Wherein: count year 300 days working days; 0.5 yuan/kwh of electricity meter.Economic benefit is very considerable.
Embodiment 2:
As shown in Figure 2, kiln waste heat retracting device of the present utility model, be outside equipped with 33 metal heat absorption tubes 2 at industry kiln body of heater 1, be interspersed and be two-layer array structure, the axis of metal heat absorption tube 2 is parallel with the axis of Industrial Stoves, metal heat absorption tube 2 circumferentially distributes along the kiln body and forms the circular arc metal heat absorption tube array of overwhelming majority parcel, certainly, also can form full parcel form; Between the surface of metal heat absorption tube 2 and Industrial Stoves 1 body surface is 50cm apart from a.This waste-heat recovery device cooperates and existingly to utilize waste heat to carry out steam-turbine power plant to use, the heat that kiln waste heat retracting device of the present utility model is collected is used for pre-Hot gas turbine condensate water, be used, improved the kiln waste heat recovery utilization rate; Not only saved cost, caused climate warming in the atmosphere, helped environmental protection but also prevent that heat from directly scattering to.With production line of Chongqing City's cement production enterprise is example: the emittance 6.83kw that rotary kiln is every square metre, energy work rate 464 kw of 68 square metres of being covered in 70% acceptance rate, per hour can issue additional 348 degree.Then a year acquisition economic benefit is: 347 * 24 * 300 * 0.5=1249920 unit; Wherein: count year 300 days working days; 0.5 yuan/kwh of electricity meter.Economic benefit is very considerable.
As the further improvement to the foregoing description, described metal heat absorption tube 2 is the metal fin pipe, and present embodiment adopts the copper finned tube, has increased the absorption area of metal heat absorption tube 2 greatly, helps improving the waste heat recovery rate.
As the further improvement to the foregoing description, described curved metal endothermic tube array is two superimposed distribution at least.Adopt the multiple layer metal endothermic tube, can improve the absorption efficiency of waste heat, improve the recovery utilization rate of waste heat.
As further improvement, adopt resistant to elevated temperatures pad to be connected between the metal heat absorption tube by flangeseal to the foregoing description.Guarantee the sealing property of joint, prevent drainage.
As the further improvement to the foregoing description, described metal heat absorption tube is fixing by support 3, and support 3 adopts symmetrical concentric structure, and stability under loading is guaranteed enough constant intensities, prevents the destruction of crosswind force and vertical gravity.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (8)
1. a kiln waste heat retracting device is characterized in that: the external heat radiation absorption plant that is provided with of Industrial Stoves.
2. kiln waste heat retracting device according to claim 1, it is characterized in that: described heat radiation absorption plant comprises the metal heat absorption tube that at least one axis is parallel with the axis of Industrial Stoves, and metal heat absorption tube circumferentially distributes along the kiln body and forms curved metal endothermic tube array.
3. kiln waste heat retracting device according to claim 2 is characterized in that: described metal heat absorption tube is the metal fin pipe.
4. kiln waste heat retracting device according to claim 2 is characterized in that: the distance of described metal heat absorption tube and Industrial Stoves body surface is 20cm-50cm.
5. kiln waste heat retracting device according to claim 2 is characterized in that: described curved metal endothermic tube array partly wrap up or all parcel to be arranged on Industrial Stoves external.
6. kiln waste heat retracting device according to claim 2 is characterized in that: described curved metal endothermic tube array is two superimposed distribution at least.
7. kiln waste heat retracting device according to claim 2 is characterized in that: adopt resistant to elevated temperatures pad to be connected by flangeseal between the metal heat absorption tube.
8. kiln waste heat retracting device according to claim 2 is characterized in that: described metal heat absorption tube is fixed by support, and support adopts symmetrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200258405U CN201926322U (en) | 2011-01-26 | 2011-01-26 | Waste heat recovery device of industrial kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200258405U CN201926322U (en) | 2011-01-26 | 2011-01-26 | Waste heat recovery device of industrial kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926322U true CN201926322U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200258405U Expired - Fee Related CN201926322U (en) | 2011-01-26 | 2011-01-26 | Waste heat recovery device of industrial kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201926322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730708A (en) * | 2012-07-04 | 2012-10-17 | 青岛东岳罗地亚化工有限公司 | Heat recycling device for chain plate machine and manufacturing system for sodium silicate |
-
2011
- 2011-01-26 CN CN2011200258405U patent/CN201926322U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730708A (en) * | 2012-07-04 | 2012-10-17 | 青岛东岳罗地亚化工有限公司 | Heat recycling device for chain plate machine and manufacturing system for sodium silicate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20150126 |
|
| EXPY | Termination of patent right or utility model |