CN105737627A - Surface heat recovery device of cement production rotary kiln - Google Patents
Surface heat recovery device of cement production rotary kiln Download PDFInfo
- Publication number
- CN105737627A CN105737627A CN201610194302.6A CN201610194302A CN105737627A CN 105737627 A CN105737627 A CN 105737627A CN 201610194302 A CN201610194302 A CN 201610194302A CN 105737627 A CN105737627 A CN 105737627A
- Authority
- CN
- China
- Prior art keywords
- rotary kiln
- water cooled
- water collar
- heat exchanger
- outer housing
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a surface heat recovery device of a cement production rotary kiln. The surface heat recovery device comprises an outer cover, water cooled jackets, a heat exchanger, a fan tube and an air volume adjusting valve, wherein the water cooled jackets and the outer cover are regular hexagon-shaped, and are symmetrically arranged outside the outer surface of the cement rotary kiln; a clearance is arranged between the two water cooled jackets; a clearance exists between the two water cooled jackets and the outer surface of the rotary kiln; a ventilation channel is formed between the water cooled jackets and the surface of the rotary kiln; working medium inlets and working medium outlets are formed in the water cooled jackets; the outer cover is a sealed casing wrapping the outer parts of the water cooled jackets; two cavities are arranged inside the outer cover; the fan tube is connected with one cavity of the outer cover, and the air volume adjusting valve is arranged inside the cavity; the heat exchanger is arranged in the other cavity of the outer cover; the working medium outlets in the water cooled jackets are connected with a hot working medium inlet in the heat exchanger; and bumps of which the length is larger than one second of the diameter of the water cooled jackets and is smaller than the diameter of the water cooled jackets are arranged on the inner wall of the two sides of each water cooled jacket at intervals. According to the device, the heat recovery and exchange efficiency is good.
Description
Technical field
The present invention relates to heat reclaim unit, specifically, relate to a kind of manufacture of cement rotary kiln surface heat reclaim unit.
Background technology
Cement industry is a highly energy-consuming, the industry of high pollution, and conventional cement rotary kiln is a typical high-energy equipment.Cement rotary kiln operationally surface temperature is significantly high, is approximately between 400 DEG C-200 DEG C, and major part heat all scatters and disappears with radiation mode, and this not only makes the material consumption of cement rotary kiln and brick consumption relatively big, and also results in the serious waste of the energy.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide and a kind of reclaim heat exchange efficiency well manufacture of cement rotary kiln surface heat reclaim unit simultaneously.This device makes rotary kiln surface temperature remain within a metastable scope, while reducing energy consumption, also reduces material consumption and brick consumption.
nullFor achieving the above object，The present invention is achieved by the following technical solutions: a kind of manufacture of cement rotary kiln surface heat reclaim unit，Including outer housing、Water collar、Heat exchanger、Air blower tube and volume damper，Described water collar and outer housing are regular hexagon，It is symmetricly set on outside the outer surface of cement rotary kiln，It is provided with gap between two described water collars，And all and there is gap between the outer surface of rotary kiln，A ventilating duct is formed between described water collar and rotary kiln surface，Water collar is provided with working medium import and sender property outlet，Outer housing is a closing case being wrapped in outside water collar，Two cavitys it are provided with in it，Air blower tube is connected with a cavity of outer housing and is provided with volume damper in this cavity，Heat exchanger is arranged in another cavity of outer housing，Sender property outlet on described water collar is connected with the hot working fluid import on heat exchanger，Described water collar both sides inwall is arranged at intervals with length more than 1/2nd of water collar diameter，Projection less than water collar diameter.
Further illustrating, described outer cover inner surface is provided with heat-insulation layer.
Compared with prior art, there is advantages that the present invention defines a water collar being capable of free convection and tubular heat exchanger combination on cement rotary kiln surface, it is aided with Fan pipeline, the step realizing rotary kiln surface temperature regulates, working medium does not directly contact with rotary kiln, do not affect the properly functioning of rotary kiln, recovery heat exchange efficiency is high, effective, by the recycling to the working medium heated by rotary kiln, realize saving energy, reduce overall energy consumption, rotary kiln surface is cooled down, reach the purpose reducing material consumption and brick consumption, be conducive to improving the working life of rotary kiln.Owing to water collar and outer housing are orthohexagonal geometry, the air entering inside and outside ventilating duct forms whirlpool in the position of hexagon angle, enhances heat-transfer effect, extends the air time of staying in air channel, increase the heat of recovery, improve effectiveness of regenerator.Water collar both sides inwall is arranged at intervals with length can extend air residence time more than 1/2nd of water collar diameter less than the projection of water collar diameter, better to absorb heat.
Accompanying drawing explanation
Fig. 1 is for illustrating the schematic diagram of embodiment of the present invention manufacture of cement rotary kiln surface heat reclaim unit.
Parts title and sequence number in figure: 1-rotary kiln 2-outer housing 3-water collar 4-air blower tube 5-heat exchanger 6-volume damper 7-ventilating duct 8-working medium import 9-sender property outlet 10-projection.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but is not intended to protection scope of the present invention and range of application:
As shown in Figure 1, a kind of manufacture of cement rotary kiln surface heat reclaim unit, including outer housing 2, water collar 3, heat exchanger 5, air blower tube 4 and volume damper 6, water collar 3 is in regular hexagon, it is symmetricly set on outside the outer surface of cement rotary kiln 1, it is provided with gap between two water collars 3, and all and there is gap between the outer surface of rotary kiln 1, a ventilating duct 7 is formed between water collar 3 and rotary kiln 1 surface, water collar 3 is the parts that a similar water pocket is the same, there is a cavity inside, and it is respectively arranged at two ends with working medium import 8 and sender property outlet 9.Outer housing 2 is a closing case being wrapped in outside water collar 3, is provided with two cavitys in it, and air blower tube 4 is connected with a cavity of outer housing 2 and is provided with volume damper 6 in this cavity, enters the air quantity in overcoat 2 to regulate by air blower tube 4.Heat exchanger 5 is arranged in another cavity of outer housing 2, and the working medium in water collar 3 can adopt connected in series or in parallel by sender property outlet 9 with the working medium in heat exchanger 5.Heat-insulation layer can be provided with, so that working medium fully absorbs heat and the external heat exchange of cement rotary kiln 1 in overcoat 2 interior surface.Water collar 3 both sides inwall relative spacing be provided with length more than water collar 3 diameter 1/2nd less than the projection 10 of water collar 3 diameter, the gap in water collar 3 is made to become multiple S shapes, increase cold fluid working substance time of staying in water collar 3, fully absorb the heat of cement rotary kiln 1.Owing to water collar 3 and outer housing 2 are in orthohexagonal geometry, the air entering ventilating duct forms whirlpool in the position of hexagon angle, enhances heat-transfer effect, extends the air time of staying in ventilating duct, increase the heat of recovery, improve effectiveness of regenerator.
The material of outer housing 2, water collar 3 and air blower tube 4 can adopt general boiler steel, it is not necessary to special material.Adopt low boiling working fluid or general working medium in water collar 3 and tubular heat exchanger 5, produce steam or high-temperature water.The secondary wind of available high-power blower or burner after the cold air heating entered in air blower tube 4.
When rotary kiln 1 works, its surface temperature is higher, is now placed in the water collar 3 of rotary kiln 1 outer surface and is passed into the cold fluid working substance of low boiling by working medium import 8.The radiations heat energy on rotary kiln 1 surface can be absorbed when the cold fluid flow in water collar 3 is through rotary kiln 1 outer surface space, after the cold flow body in water collar 3 is heated, enter the tubular heat exchanger 5 on rotary kiln 1 top.Meanwhile, cold air enters the ventilating duct 7 between water collar 3 and rotary kiln 1 through air blower tube 4, it is heated when flowing through rotary kiln 1 surface, absorbing the heat on rotary kiln 1 surface, the air after heating enters outside the pipe of tubular heat exchanger 5, the fluid in pipe in heating tubular heat exchanger 5, this fluid is from water collar 3, heated tube fluid can be collected utilization, thus having saved the energy, reduces overall energy consumption.The step being realized rotary kiln surface temperature by the flow regulating working medium in water collar 3 and the aperture of air blower tube 4 arranged along cement rotary kiln length is regulated, and fully absorbs the heat radiation on rotary kiln 1 surface.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make some equivalent replacements or obvious modification without departing from the inventive concept of the premise; and performance or purposes are identical, the scope of patent protection that the present invention is determined all should be considered as belonging to by submitted claims.
Claims (2)
- null1. a manufacture of cement rotary kiln surface heat reclaim unit，It is characterized in that: include outer housing (2)、Water collar (3)、Heat exchanger (5)、Air blower tube (4) and volume damper (6)，Described water collar (3) and outer housing (2) are in regular hexagon，It is symmetricly set on outside the outer surface of cement rotary kiln (1)，It is provided with gap between two described water collars (3)，And all and there is gap between the outer surface of rotary kiln (1)，A ventilating duct (7) is formed between described water collar (3) and rotary kiln (1) surface，Water collar (3) is provided with working medium import (8) and sender property outlet (9)，Outer housing (2) is one is wrapped in the closing case that water collar (3) is outside，Two cavitys it are provided with in it，Air blower tube (4) is connected with a cavity of outer housing (2) and is provided with volume damper (6) in this cavity，Heat exchanger (5) is arranged in another cavity of outer housing (2)，Sender property outlet (9) on described water collar (3) is connected with the hot working fluid import (8) on heat exchanger (5)，The both sides inwall of described water collar (3) is arranged at intervals with length more than 1/2nd of water collar (3) diameter，Projection (10) less than water collar (3) diameter.
- 2. manufacture of cement rotary kiln surface heat reclaim unit according to claim 1, it is characterised in that: described outer housing (2) inner surface is provided with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194302.6A CN105737627A (en) | 2016-03-30 | 2016-03-30 | Surface heat recovery device of cement production rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194302.6A CN105737627A (en) | 2016-03-30 | 2016-03-30 | Surface heat recovery device of cement production rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105737627A true CN105737627A (en) | 2016-07-06 |
Family
ID=56253491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610194302.6A Pending CN105737627A (en) | 2016-03-30 | 2016-03-30 | Surface heat recovery device of cement production rotary kiln |
Country Status (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009008256A1 (en) * | 2007-07-10 | 2009-01-15 | Kabushiki Kaisha Kobe Seiko Sho | Apparatus and method for treating waste gas for rotary hearth furnace-type reducing furnace |
| CN103033039A (en) * | 2013-01-10 | 2013-04-10 | 山东省能源与环境研究院 | Rotary cement kiln surface heat recycling device with temperature regulation function |
| CN103123219A (en) * | 2013-03-26 | 2013-05-29 | 山东省能源与环境研究院 | Regular hexagon rotary cement kiln surface heat recovery device |
| CN203240880U (en) * | 2012-10-29 | 2013-10-16 | 北大工学院绍兴技术研究院 | Waste heat recovery device |
| CN102607260B (en) * | 2012-03-16 | 2014-11-05 | 杭州杭锅工业锅炉有限公司 | Rotary kiln waste heat recovering device with convection fin tubes structure |
| CN205718503U (en) * | 2016-03-30 | 2016-11-23 | 南宁砼材科技有限责任公司 | A kind of manufacture of cement rotary kiln surface heat reclaim unit |
-
2016
- 2016-03-30 CN CN201610194302.6A patent/CN105737627A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009008256A1 (en) * | 2007-07-10 | 2009-01-15 | Kabushiki Kaisha Kobe Seiko Sho | Apparatus and method for treating waste gas for rotary hearth furnace-type reducing furnace |
| CN102607260B (en) * | 2012-03-16 | 2014-11-05 | 杭州杭锅工业锅炉有限公司 | Rotary kiln waste heat recovering device with convection fin tubes structure |
| CN203240880U (en) * | 2012-10-29 | 2013-10-16 | 北大工学院绍兴技术研究院 | Waste heat recovery device |
| CN103033039A (en) * | 2013-01-10 | 2013-04-10 | 山东省能源与环境研究院 | Rotary cement kiln surface heat recycling device with temperature regulation function |
| CN103123219A (en) * | 2013-03-26 | 2013-05-29 | 山东省能源与环境研究院 | Regular hexagon rotary cement kiln surface heat recovery device |
| CN205718503U (en) * | 2016-03-30 | 2016-11-23 | 南宁砼材科技有限责任公司 | A kind of manufacture of cement rotary kiln surface heat reclaim unit |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
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| RJ01 | Rejection of invention patent application after publication |