CN211147352U - Kiln tail exhaust-heat boiler - Google Patents
Kiln tail exhaust-heat boiler Download PDFInfo
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- CN211147352U CN211147352U CN201921990303.7U CN201921990303U CN211147352U CN 211147352 U CN211147352 U CN 211147352U CN 201921990303 U CN201921990303 U CN 201921990303U CN 211147352 U CN211147352 U CN 211147352U
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- boiler
- kiln tail
- heat boiler
- waste gas
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a kiln tail exhaust-heat boiler, its characterized in that: the boiler is provided with two parallel and independent smoke and air pipelines, the smoke and air pipelines are provided with a waste gas inlet, the lower end of the smoke and air pipelines is provided with a waste gas outlet opposite to the waste gas inlet, and the two smoke and air pipelines are correspondingly connected with a shared steam drum. The utility model discloses kiln tail exhaust-heat boiler, simple structure under the condition that does not influence cement manufacture line system operation, realizes that area is little, easy operation, be convenient for import and export the gas-air pipeline and arrange, and is with low costs, has stronger practicality and better application prospect.
Description
Technical Field
The utility model belongs to the technical field of the boiler waste heat, more specifically say, relate to a kiln tail exhaust-heat boiler.
Background
The design unit of the cement production line is known at foreign countries and domestic countries, and on the production line of more than 4000T/D, a double-series preheater system is mostly adopted and two sets of high-temperature fans (ID fans for short) are configured. In order to utilize the kiln tail waste heat of the type, two sets of independent kiln tail waste heat boilers are required to be arranged so as to meet the operation requirements of a production line, so that the problems of large engineering occupied area, large difficulty in arranging inlet and outlet air pipes, high initial investment cost, large difficulty in operating and maintaining the boilers and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems existing in the prior art and providing a kiln tail waste heat boiler which has simple structure, low cost and convenient arrangement.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: the provided kiln tail waste heat boiler is characterized in that: the boiler is provided with two parallel and independent smoke and air pipelines, the smoke and air pipelines are provided with a waste gas inlet, the lower end of the smoke and air pipelines is provided with a waste gas outlet opposite to the waste gas inlet, and the two smoke and air pipelines are correspondingly connected with a shared steam drum.
In order to make the above technical solution more detailed and concrete, the present invention further provides the following preferable technical solution to obtain satisfactory practical effect:
and the boiler is also provided with heat exchange modules which are horizontally arranged along the flue gas pipeline at intervals.
A plurality of water circulation pipelines are arranged in the heat exchange module.
The flue at the waste gas inlet is arranged in a horn mouth, and uniformly distributed components are arranged in the flue at the waste gas inlet.
The uniform distribution assembly comprises a flow guide assembly arranged above and a flow disturbing assembly arranged below the flow guide assembly.
The guide assembly comprises two first supporting plates connected to two sides of the inner wall of the waste gas inlet flue, and a plurality of guide plates arranged at intervals are arranged perpendicular to the two first supporting plates; and the two sides of the guide plate are guide surfaces which are arranged in a downward inclined mode.
The flow disturbing assembly comprises two second supporting plates connected to two sides of the inner wall of the waste gas inlet flue, and a plurality of flow disturbing plates arranged at intervals are arranged perpendicular to the two second supporting plates; the spoiler is a groove with a semicircular cross section.
The spoilers and the guide plates are arranged in a staggered mode from top to bottom.
The boiler is provided with a set of stair system which can go up and down, and each layer of heat exchange module is provided with a corresponding operating platform.
Four or six steel structures or concrete upright supports are arranged at the bottom of the boiler.
Compared with the prior art, the utility model, have following advantage: the utility model discloses kiln tail exhaust-heat boiler, simple structure under the condition that does not influence cement manufacture line system operation, realizes that area is little, easy operation, be convenient for import and export the gas-air pipeline and arrange, and is with low costs, has stronger practicality and better application prospect.
Drawings
The contents of the drawings and the reference numerals in the drawings of the present specification will be briefly described as follows:
FIG. 1 is a schematic side view of a kiln tail waste heat boiler of the utility model;
FIG. 2 is a schematic view of the front structure of the kiln tail waste heat boiler of the utility model;
FIG. 3 is a top view of the kiln tail waste heat boiler of the utility model;
fig. 4 is the utility model discloses well equipartition subassembly arrangement structure sketch map.
Labeled as: labeled as: 1. waste gas import, 2, waste gas export, 3, sharing steam pocket, 4, heat exchange module, 5, stair system, 6, equipartition subassembly, 61, water conservancy diversion subassembly, 62, vortex subassembly, 63, first backup pad, 64, guide plate, 65, second backup pad, 66, spoiler.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
The utility model discloses this kind of kiln tail exhaust-heat boiler, as shown in figure 1, 2, 3, the boiler is equipped with two side by side and independent cigarette wind pipelines, is equipped with waste gas import 1 on the cigarette wind pipeline, and the lower extreme is equipped with exhaust outlet 2 relative with waste gas import 1, corresponds on two cigarette wind pipelines and connects a sharing steam pocket 3. The boiler is provided with a set of stair system 5 which goes up and down, and each layer of heat exchange module is provided with a corresponding operating platform. Four or six steel structure or concrete upright post supports are arranged at the bottom of the boiler. The kiln tail waste heat boiler with the structure realizes a double-series kiln tail waste heat boiler which has the advantages of small occupied area, easy operation, convenient arrangement of inlet and outlet flue gas and air pipelines and low initial investment under the condition of not influencing the operation of a cement production line system.
The utility model discloses in, still be equipped with on the boiler along flue gas pipeline horizontal interval arrangement's heat exchange module 4. A plurality of water circulation pipelines are arranged in the heat exchange module 4, and natural circulation is adopted in water circulation. The heat exchange of the flue gas is carried out through the heat exchange module.
The utility model discloses in, arrange for the horn mouth at waste gas import 1 flue, be equipped with equipartition subassembly 6 in waste gas import 1's flue, ensure that the flue gas evenly passes through the boiler heat transfer surface. In the present invention, as shown in fig. 1 and 4, the uniform distribution assembly 6 comprises a flow guide assembly 61 arranged above and a flow disturbing assembly 62 arranged below the flow guide assembly 61.
As shown in fig. 4, the flow guide assembly 61 comprises two first support plates 63 connected to both sides of the inner wall of the flue of the exhaust gas inlet 1, the two first support plates 63 are arranged in the same plane, and a plurality of flow guide plates 64 arranged at intervals are arranged perpendicular to the two first support plates 63; the guide plates 64 are provided with guide surfaces arranged in a downward inclination manner at two sides. The turbulent flow component 62 comprises two second supporting plates 65 connected to two sides of the inner wall of the flue of the waste gas inlet 1, and a plurality of turbulent flow plates 66 arranged at intervals are arranged on the two vertical second supporting plates 65; the spoiler 66 is a groove having a semicircular cross section. The spoilers 66 and the baffles 65 are arranged in a staggered manner in the up-down direction.
The two smoke and air pipelines are internally provided with uniformly distributed components, a plurality of guide plates 65 are welded at intervals along the length direction of the first supporting plate 63, the guide plates 65 can be angle steel, and two ends of each guide plate 65 are fixed on the first supporting plate 63 to play a role in guiding and uniformly distributing the entering waste gas and dust downwards; the spoilers 66 are welded on the second supporting plate 65 along the length direction at equal intervals, semicircular steel pipes can be selected as the spoilers 66, openings of semicircular grooves of the spoilers 66 are upward, the spoilers 65 and the spoilers 66 are arranged in an up-and-down staggered mode, so that exhaust gas dust entering a flue flows downwards uniformly through the diversion of the spoilers 65 and then impacts the spoilers 66, and the arc-shaped notches of the spoilers 66 are upward, so that the retention time of the exhaust gas in the boiler is prolonged, and the heat exchange efficiency of the boiler is improved.
The utility model discloses two flue kiln tail exhaust-heat boiler, including two exit flues, the flue is each other independent, one set of steam pocket of sharing and stair system adopt 4-6 boiler support concrete or steel construction stand to save the civil engineering cost. The kiln tail waste heat boiler adopts a vertical waste heat boiler, the flow direction of waste gas is from top to bottom, the heat exchange modules 4 are horizontally arranged, the shared steam drum 3 is arranged at the top of the boiler, water circulation adopts natural circulation, and the top of the boiler is provided with a waste gas inlet 1 with double flues; the heat exchange surface of the boiler adopts a double-spliced module, and four sides of the module are sealed by steel plates; the exhaust gas outlet 2 of the outlet double flue is arranged at the bottom of the boiler.
In the utility model, the waste gas inlet 1 of the inlet flue is arranged by adopting a bell mouth, the central line of the flue is overlapped with the central line of the boiler module, and the uniform distribution plate is arranged in the bell mouth to ensure that the flue gas uniformly passes through the heat exchange surface of the boiler; the boiler heat exchange module is prefabricated in a factory or partially prefabricated on site, the middle of the double-spliced module is separated by a steel plate to play a role in heat insulation, and the heat exchange module is welded on the inlet and outlet flue. The outlet flue is shared with the boiler ash bucket, the bottom of the outlet flue is provided with a zipper machine for conveying ash, and the outlet of the flue can be arranged on the wide side or the long side of the boiler according to the arrangement condition of the boiler.
In the utility model, the double-flue boiler is provided with a set of stair ascending and descending system, and each layer of module is provided with a manhole door and an operating platform, so that the operation and maintenance of operators are convenient; 4 (or 6) steel structures or concrete columns are arranged at the bottom of the boiler for supporting, so that the safety of the boiler is ensured.
The utility model discloses kiln tail exhaust-heat boiler, simple structure under the condition that does not influence cement manufacture line system operation, realizes that area is little, easy operation, be convenient for import and export the gas-air pipeline and arrange, and is with low costs, has stronger practicality and better application prospect.
The present invention has been described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and various insubstantial improvements or direct applications to other applications can be achieved by using the method and technical solution of the present invention, which all fall within the protection scope of the present invention.
Claims (10)
1. The kiln tail waste heat boiler is characterized in that: the boiler is provided with two parallel and independent smoke and air pipelines, the smoke and air pipelines are provided with a waste gas inlet, the lower end of the smoke and air pipelines is provided with a waste gas outlet opposite to the waste gas inlet, and the two smoke and air pipelines are correspondingly connected with a shared steam drum.
2. The kiln tail waste heat boiler of claim 1, characterized in that: and the boiler is also provided with heat exchange modules which are horizontally arranged along the smoke and air pipeline at intervals.
3. The kiln tail waste heat boiler of claim 2, characterized in that: a plurality of water circulation pipelines are arranged in the heat exchange module.
4. The kiln tail waste heat boiler of claim 1, characterized in that: the flue at the waste gas inlet is arranged in a horn mouth, and uniformly distributed components are arranged in the flue at the waste gas inlet.
5. The kiln tail waste heat boiler of claim 4, characterized in that: the uniform distribution assembly comprises a flow guide assembly arranged above and a flow disturbing assembly arranged below the flow guide assembly.
6. The kiln tail waste heat boiler of claim 5, characterized in that: the guide assembly comprises two first supporting plates connected to two sides of the inner wall of the waste gas inlet flue, and a plurality of guide plates arranged at intervals are arranged perpendicular to the two first supporting plates; and the two sides of the guide plate are guide surfaces which are arranged in a downward inclined mode.
7. The kiln tail waste heat boiler of claim 6, characterized in that: the flow disturbing assembly comprises two second supporting plates connected to two sides of the inner wall of the waste gas inlet flue, and a plurality of flow disturbing plates arranged at intervals are arranged perpendicular to the two second supporting plates; the spoiler is a groove with a semicircular cross section.
8. The kiln tail waste heat boiler of claim 7, characterized in that: the spoilers and the guide plates are arranged in a staggered mode from top to bottom.
9. The kiln tail waste heat boiler of claim 1, characterized in that: the boiler is provided with a set of stair system which can go up and down, and each layer of heat exchange module is provided with a corresponding operating platform.
10. The kiln tail waste heat boiler of claim 1, characterized in that: four or six steel structures or concrete upright supports are arranged at the bottom of the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990303.7U CN211147352U (en) | 2019-11-18 | 2019-11-18 | Kiln tail exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990303.7U CN211147352U (en) | 2019-11-18 | 2019-11-18 | Kiln tail exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211147352U true CN211147352U (en) | 2020-07-31 |
Family
ID=71773639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921990303.7U Active CN211147352U (en) | 2019-11-18 | 2019-11-18 | Kiln tail exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211147352U (en) |
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2019
- 2019-11-18 CN CN201921990303.7U patent/CN211147352U/en active Active
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