CN203116540U - Cement ring kiln waste heat recovery hot air circulating device - Google Patents
Cement ring kiln waste heat recovery hot air circulating device Download PDFInfo
- Publication number
- CN203116540U CN203116540U CN2013201400572U CN201320140057U CN203116540U CN 203116540 U CN203116540 U CN 203116540U CN 2013201400572 U CN2013201400572 U CN 2013201400572U CN 201320140057 U CN201320140057 U CN 201320140057U CN 203116540 U CN203116540 U CN 203116540U
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- air
- cooling wall
- outer cover
- air channel
- cement
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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
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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
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
A cement ring kiln waste heat recovery hot air circulating device comprises an induced draft fan, a heat exchanger, a water cooling wall, an outer cover, side air channels, a main air channel and a return air pipeline. The water cooling wall is arranged on the periphery of the surface of a cement ring kiln, a gap exists between the water cooling wall and the ring kiln to form an air channel, the outer portion of the water cooling wall is wrapped by the outer cover, the main air channel communicated with the air channel and at least one side air channel communicated with the air channel are arranged on the outer cover, a cavity communicated with the air channel is arranged in the outer cover, the heat exchanger and the induced draft fan are arranged in the cavity, the induced draft fan is connected with one end of the return air pipeline, and the other end of the return air pipeline is connected into the main air channel. By means of the cement ring kiln waste heat recovery hot air circulating device, air quantity control is achieved, medium temperatures in an outlet of the heat exchanger can be improved, energy in better quality is achieved, the function of circulated waste recovery is achieved, recovery and heat exchange are high efficiency and good in effect, energy consumption is reduced, and meanwhile the service life of the cement ring kiln is prolonged.
Description
Technical field
The utility model relates to a kind of device for cement revolving tubular kiln surface heat recovery, belongs to the heat recovery technology field.
Background technology
Cement industry is the industry of a highly energy-consuming high pollution, and cement rotary kiln is a typical high-energy equipment of dry production cement process.Rotary kiln surface temperature when work is higher, and greatly about 200 ℃-400 ℃, most of heat all scatters and disappears with radiation mode, needs simultaneously with cold water or cold wind the rotary kiln drum surface to be cooled off.It is bigger that this working method makes that cement rotary kiln required material consumption in service and brick consume, and also causes the serious waste of the energy.
CN102636022A discloses a kind of " dry method cement rotary kiln jacket casing waste heat recovery heat-exchanger rig ", be to be with one or more snippets fixed outer cylinder cover in the outside of described cement rotary kiln kiln body, outer jacket casing two ends are provided with the working medium import, cement rotary kiln kiln body and urceolus inner room maintain at interval and form working medium runner and heat transfer space, and the jacket casing middle part is provided with sender property outlet outside.Cold heat-exchange working medium can be outside every section the two ends of jacket casing enter the interval of two cylindrical shells, heated working medium is discharged from this section middle part stationary exit, utilizes system to supply with external heat, finishes cement rotary kiln surface waste heat recovery.This device can not change existing cement rotary kiln body construction and not influence on the basis of its operation, with the cement rotary kiln surface heat recovery that wasted originally.But this device can only reclaim heat exchange by a kind of working medium, and working medium is to flow between jacket casing and the cement rotary kiln kiln surface outside, directly contact with cement rotary kiln kiln body, the recovery heat exchange efficiency is low, effect is not good enough, and cement rotary kiln kiln body is had certain infringement.
Summary of the invention
The utility model provides a kind of can the circulation to reclaim cement revolving tubular kiln surface heat and the high cement revolving tubular kiln waste heat recovery circulating air device of organic efficiency at the deficiency that existing cement revolving tubular kiln surface heat recovery technology exists.
Cement revolving tubular kiln waste heat recovery circulating air device of the present utility model, adopt following technical scheme:
This device comprises air-introduced machine, heat exchanger, water-cooling wall, outer cover and return air pipeline; Water-cooling wall is arranged on the periphery of cement revolving tubular kiln, there is the gap between the surface of water-cooling wall and rotary kiln, form a ventilating duct, outer cover is wrapped in the water-cooling wall outside, outer cover is provided with a main air duct that is communicated with ventilating duct and at least one crosswind road that is communicated with ventilating duct, also is provided with a cavity that is communicated with ventilating duct on the outer cover, is provided with heat exchanger and air-introduced machine in this cavity, air-introduced machine is connected with an end of return air pipeline, and the other end of return air pipeline is connected in the main air duct.
Water-cooling wall is hexagon, the air that enters in the ventilating duct is formed in the position at hexagonal six angles to reflux, not only feasible heat exchange effect with water-cooling wall and rotary kiln surface is strengthened but also the time of staying in ventilating duct also lengthens, strengthen the heat recovery effect like this, realized the recovery of more heats.
Low boiling point working medium in water-cooling wall (perhaps general working medium) or the cold air that enters through main air duct when absorbing the heat on rotary kiln surface to the rotary kiln surface cooling.Cold air enters heat exchanger as the working medium in the thermal source heating heat exchanger after being heated through the rotary kiln surface, air temperature after heat exchange as thermal source can reach about 100 ℃, get back to the return air pipeline through air-introduced machine, so far finish a circulation, when air enters in the ventilating duct again, begin new heat transfer cycle.Simultaneously, can regulate the air quantity enter in the rotary kiln with the temperature on control rotary kiln surface by the crosswind road.By above-mentioned measure, not only realized the recycling of energy, reach purpose of energy saving, also reduced the material consumption and brick consumption of cement production process, improved the working life of rotary kiln.
The utility model arranges heat exchanger above the water-cooling wall on cement revolving tubular kiln surface, be aided with the crosswind road, realization is to the control of air quantity in the ventilating duct, can improve the outlet medium temperature in the heat exchanger, obtain the more high-quality energy, have the function of circulation recovery waste heat, reclaim heat exchange efficiency height, effective, when cutting down the consumption of energy, also prolonged the life-span of rotary kiln.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Among the figure: 1. air-introduced machine, 2. heat exchanger, 3. water-cooling wall, 4. cement revolving tubular kiln, 5. outer cover, 6. crosswind road, 7. main air duct, 8. return air pipeline, 9, ventilating duct.
The specific embodiment
As shown in drawings, cement revolving tubular kiln waste heat recovery circulating air device of the present utility model comprises outer cover 5, water-cooling wall 3, heat exchanger 2, air-introduced machine 1, main air duct 7, return air pipeline 8 and crosswind road 6.Water-cooling wall 3 is hexagon, and there is the gap in the outer side surface around being arranged on cement revolving tubular kiln 4 between the surface of water-cooling wall 3 and rotary kiln 1, and this gap forms a ventilating duct 9.Water-cooling wall 3 can be made two parts symmetry and link together.The periphery of water-cooling wall 3 is enclosed with outer cover 5, and the bottom of outer cover 5 is provided with a main air duct that is communicated with ventilating duct 7, and the crosswind road 6 that at least one is communicated with ventilating duct 9 is set beyond main air duct 7 in addition, enters air quantity in the ventilating duct with adjusting.The top of outer cover 5 is provided with a cavity that is communicated with ventilating duct 9, is provided with heat exchanger 2 and air-introduced machine 1 in this cavity, and air-introduced machine 1 is connected with an end of return air pipeline 8, and the other end of return air pipeline 8 is connected in the main air duct 7.Heat exchanger 2 can adopt tubular heat exchanger.
Cold wind enters from main air duct 7, is heated during the outer surface of the cement rotary kiln 4 of the high temperature of flowing through.Heated air is as thermal source, continues the working medium in the heat exchanger 2 on heating outer cover 5 tops.After the air heat release, temperature drops to about 100 ℃.The air of this high temperature is drawn in the return air pipeline 8 by air-introduced machine 1, continues as thermal source, realizes the cycling hot transmission of cement kiln waste heat recovery process.This circulating air device can improve the temperature of air side, and then improves the outlet temperature of the interior heated medium of pipe of water-cooling wall 3 and heat exchanger 2.
Crosswind road 6 can compensate the used air of whole diabatic process, can link to each other with air-introduced machine.By regulating power and the running time of pressure fan, can control the size of mending air quantity.
Claims (2)
1. a cement revolving tubular kiln waste heat recovery circulating air device comprises air-introduced machine, heat exchanger, water-cooling wall, outer cover, crosswind road, main air duct and return air pipeline; It is characterized in that: water-cooling wall is arranged on the surface periphery of cement revolving tubular kiln, there is the gap between the surface of water-cooling wall and rotary kiln, form a ventilating duct, outer cover is wrapped in the water-cooling wall outside, outer cover is provided with a main air duct that is communicated with ventilating duct and at least one crosswind road that is communicated with ventilating duct, also be provided with a cavity that is communicated with ventilating duct on the outer cover, be provided with heat exchanger and air-introduced machine in this cavity, air-introduced machine is connected with an end of return air pipeline, and the other end of return air pipeline is connected in the main air duct.
2. cement revolving tubular kiln waste heat recovery circulating air device according to claim 1, it is characterized in that: described water-cooling wall is hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201400572U CN203116540U (en) | 2013-03-26 | 2013-03-26 | Cement ring kiln waste heat recovery hot air circulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201400572U CN203116540U (en) | 2013-03-26 | 2013-03-26 | Cement ring kiln waste heat recovery hot air circulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203116540U true CN203116540U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201400572U Expired - Fee Related CN203116540U (en) | 2013-03-26 | 2013-03-26 | Cement ring kiln waste heat recovery hot air circulating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203116540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123217A (en) * | 2013-03-26 | 2013-05-29 | 山东省能源与环境研究院 | Cement ring kiln waste heat recovery circulation hot air device |
| CN103822496A (en) * | 2014-03-11 | 2014-05-28 | 洛阳水泥工程设计研究院有限公司 | Adjustable rotary kiln heat collection system and heat energy collection method |
-
2013
- 2013-03-26 CN CN2013201400572U patent/CN203116540U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123217A (en) * | 2013-03-26 | 2013-05-29 | 山东省能源与环境研究院 | Cement ring kiln waste heat recovery circulation hot air device |
| CN103123217B (en) * | 2013-03-26 | 2013-12-25 | 山东省能源与环境研究院 | Cement ring kiln waste heat recovery circulation hot air device |
| CN103822496A (en) * | 2014-03-11 | 2014-05-28 | 洛阳水泥工程设计研究院有限公司 | Adjustable rotary kiln heat collection system and heat energy collection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140326 |