CN202494346U - Tail gas waste heat recovery device of rotary cement kiln - Google Patents
Tail gas waste heat recovery device of rotary cement kiln Download PDFInfo
- Publication number
- CN202494346U CN202494346U CN2012201027205U CN201220102720U CN202494346U CN 202494346 U CN202494346 U CN 202494346U CN 2012201027205 U CN2012201027205 U CN 2012201027205U CN 201220102720 U CN201220102720 U CN 201220102720U CN 202494346 U CN202494346 U CN 202494346U
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- China
- Prior art keywords
- tail gas
- transferring medium
- heat transferring
- heat
- exhaust pipe
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- 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.)
- Expired - Fee Related
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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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a tail gas waste heat recovery device of a rotary cement kiln. The tail gas waste heat recovery device comprises a tail gas pipeline, a heat exchange medium pipeline is sleeved on the outer peripheral side of the tail gas pipeline, a helical tail gas stream guide chamber is arranged inside the tail gas pipeline, and a helical heat exchange medium stream guide chamber is arranged inside a heat exchange medium pipeline. Tail gas discharged by a discharge hole of the rotary cement kiln enters the tail gas pipeline, is guided by tail gas stream guide plate and flows in a spiral path, and more heat in the tail gas can be transmitted to an inner wall of the tail gas pipeline; in a flowing process of a heat exchange medium, the heat exchange medium flows in the spiral path under guidance of the heat exchange medium stream guide plate, and work efficiency of the heat exchange medium is greatly improved. The tail gas waste heat recovery device has the advantages of being reasonable in structure and high in heat exchange efficiency.
Description
Technical field
The utility model relates to a kind of waste-heat recovery device that is used for cement rotary kiln.
Background technology
In recent years, because energy shortage, energy-saving and cost-reducing theory is rooted in the hearts of the people gradually.In the production of cement sectors, the tail gas of cement rotary kiln is high-temp waste gas, wherein contains great amount of heat energy, if this part heat energy can not get effective recovery, will cause great waste.In order to reclaim the heat energy in the cement rotary kiln exhaust gas, people have developed multiple exhaust heat-energy retracting device, but the exchange capability of heat of present existing exhaust heat-energy retracting device is relatively poor, and it is on the low side that the heat of recovery accounts in the tail gas ratio of total amount of heat.
The utility model content
The utility model technical problem to be solved provides a kind of rational in infrastructure, cement rotary kiln using waste heat from tail gas retracting device that heat exchange efficiency is high.
For solving the problems of the technologies described above; The technical scheme of the utility model is: cement rotary kiln using waste heat from tail gas retracting device; Comprise exhaust pipe; The outer circumferential side of said exhaust pipe is arranged with the heat transferring medium pipeline, and said exhaust pipe inside is provided with spiral helicine tail gas diversion cavity, and said heat transferring medium pipe interior is provided with spiral helicine heat transferring medium diversion cavity.
As optimized technical scheme, said tail gas diversion cavity comprises the tail gas deflector that is fixedly installed on the said exhaust pipe inwall, the shape setting in the shape of a spiral of said tail gas deflector.
As optimized technical scheme, said heat transferring medium diversion cavity comprises the heat transferring medium deflector that is fixedly installed between said heat transferring medium inner-walls of duct and the said exhaust pipe outer wall, the shape setting in the shape of a spiral of said heat transferring medium deflector; One side of said heat transferring medium deflector is connected with the inner wall sealing of said heat transferring medium pipeline, and another side of said heat transferring medium deflector and the outer wall of said exhaust pipe are tightly connected.
Owing to adopted technique scheme; Cement rotary kiln using waste heat from tail gas retracting device; Comprise exhaust pipe; The outer circumferential side of said exhaust pipe is arranged with the heat transferring medium pipeline, and said exhaust pipe inside is provided with spiral helicine tail gas diversion cavity, and said heat transferring medium pipe interior is provided with spiral helicine heat transferring medium diversion cavity.After the tail gas that the cement rotary kiln discharging opening is discharged gets into said exhaust pipe; Receive the guiding of said tail gas deflector, path flows in the shape of a spiral, glide path lengthening; The tail gas deflector has also increased the surface area in the exhaust pipe simultaneously; Tail gas not only conducts heat through contacting with the inwall of said exhaust pipe, and can by the tail gas deflector this part heat be passed to the inwall of exhaust pipe again through conducting heat with said tail gas deflector; The exhaust pipe of " bare " was compared with in the past, and the heat in the tail gas can more be passed on the inwall of exhaust pipe; Around flowing in the heat transferring medium pipeline that is arranged on said exhaust pipe outer circumferential side heat transferring medium is arranged, be used to absorb the tail gas heat quantity that is absorbed by the exhaust pipe inwall, heat transferring medium heats up in flow process; And outflow heat transferring medium pipeline carries out next step utilization; In the flow process of heat transferring medium, because the guiding of heat transferring medium deflector, heat transferring medium is path flows in the shape of a spiral; Glide path prolongs; The outer wall of heat transferring medium and said exhaust pipe is long time of contact, and simultaneously, the heat transferring medium deflector has also increased the surface area in the heat transferring medium pipeline; Heat transferring medium not only absorbs heat through contacting with the outer wall of said exhaust pipe; And wall energy is delivered to heat on the said heat transferring medium deflector outside the exhaust pipe, and this part heat passes to heat transferring medium through the heat transferring medium deflector again, and this has improved the operating efficiency of heat transferring medium greatly.The utlity model has advantage rational in infrastructure, that heat exchange efficiency is high.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: the 1-exhaust pipe; 11-tail gas deflector; 2-heat transferring medium pipeline; 21-heat transferring medium deflector; 3-core pipe; 4-heat transferring medium inlet; The outlet of 5-heat transferring medium.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.In the detailed description below, some example embodiment of the utility model has only been described through the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from the utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.
Shown in accompanying drawing; Cement rotary kiln using waste heat from tail gas retracting device; Comprise exhaust pipe 1; The outer circumferential side of said exhaust pipe 1 is arranged with heat transferring medium pipeline 2, and said exhaust pipe 1 inside is provided with spiral helicine tail gas diversion cavity, and said heat transferring medium pipeline 2 inside are provided with spiral helicine heat transferring medium diversion cavity.
Said tail gas diversion cavity comprises the tail gas deflector 11 that is fixedly installed on said exhaust pipe 1 inwall, the shape setting in the shape of a spiral of said tail gas deflector 11.Said tail gas diversion cavity is made up of exhaust pipe 1 inwall and tail gas deflector 11 jointly.
In order to make tail gas fully along the helical form path flows that designs; The centre of said exhaust pipe 1 also can be provided for supporting the core pipe 3 of said tail gas deflector 11 and double as buffer action; Shown in accompanying drawing; Without tail gas deflector 11, this can force tail gas to flow along the helical path of design in advance to the closed at both ends of said core pipe 3 in case tail gas therefrom passes through.The diameter of core pipe 3 is not limit; The diameter of core pipe 3 can be zero; Just the width of tail gas deflector 11 arrives at the position of center line of exhaust pipe, is equivalent to not exist the core pipe, and this structure equally also makes in the exhaust gas flow process can not break away from tail gas deflector 11 all the time.
Said heat transferring medium diversion cavity comprises the heat transferring medium deflector 21 that is fixedly installed between said heat transferring medium pipeline 2 inwalls and said exhaust pipe 1 outer wall; The shape setting in the shape of a spiral of said heat transferring medium deflector 21; One side of said heat transferring medium deflector 21 is connected with the inner wall sealing of said heat transferring medium pipeline 2, and another side of said heat transferring medium deflector 21 and the outer wall of said exhaust pipe 1 are tightly connected.Said heat transferring medium diversion cavity is made up of the inwall and the said heat transferring medium deflector 21 of the outer wall of said exhaust pipe 1, said heat transferring medium pipeline 2 jointly.
In the present embodiment, tail gas is that the hollow arrow in the accompanying drawing is represented the flow direction of tail gas in exhaust pipe 1 along from lower to upper path flows; The top of heat transferring medium pipeline 2 is provided with heat transferring medium inlet 4, and the bottom of heat transferring medium pipeline 2 is provided with heat transferring medium outlet 5, and heat transferring medium is got into by heat transferring medium inlet 4, and the direction shown in the filled arrows flows in the accompanying drawing, is flowed out by heat transferring medium outlet 5.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. cement rotary kiln using waste heat from tail gas retracting device; Comprise exhaust pipe; The outer circumferential side of said exhaust pipe is arranged with the heat transferring medium pipeline; It is characterized in that: said exhaust pipe inside is provided with spiral helicine tail gas diversion cavity, and said heat transferring medium pipe interior is provided with spiral helicine heat transferring medium diversion cavity.
2. cement rotary kiln using waste heat from tail gas retracting device as claimed in claim 1 is characterized in that: said tail gas diversion cavity comprises the tail gas deflector that is fixedly installed on the said exhaust pipe inwall, the shape setting in the shape of a spiral of said tail gas deflector.
3. cement rotary kiln using waste heat from tail gas retracting device as claimed in claim 1; It is characterized in that: said heat transferring medium diversion cavity comprises the heat transferring medium deflector that is fixedly installed between said heat transferring medium inner-walls of duct and the said exhaust pipe outer wall, the shape setting in the shape of a spiral of said heat transferring medium deflector; One side of said heat transferring medium deflector is connected with the inner wall sealing of said heat transferring medium pipeline, and another side of said heat transferring medium deflector and the outer wall of said exhaust pipe are tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201027205U CN202494346U (en) | 2012-03-19 | 2012-03-19 | Tail gas waste heat recovery device of rotary cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201027205U CN202494346U (en) | 2012-03-19 | 2012-03-19 | Tail gas waste heat recovery device of rotary cement kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494346U true CN202494346U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201027205U Expired - Fee Related CN202494346U (en) | 2012-03-19 | 2012-03-19 | Tail gas waste heat recovery device of rotary cement kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196297A (en) * | 2013-03-01 | 2013-07-10 | 武汉长海高新技术有限公司 | Device for recovering waste heat during cooling in ceramsite sand production |
-
2012
- 2012-03-19 CN CN2012201027205U patent/CN202494346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196297A (en) * | 2013-03-01 | 2013-07-10 | 武汉长海高新技术有限公司 | Device for recovering waste heat during cooling in ceramsite sand production |
| CN103196297B (en) * | 2013-03-01 | 2015-07-15 | 武汉长海高新技术有限公司 | Device for recovering waste heat during cooling in ceramsite sand production |
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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: 20121017 Termination date: 20130319 |