CN213543246U - Cement kiln head waste heat boiler and cement line grate cooler integrated device - Google Patents
Cement kiln head waste heat boiler and cement line grate cooler integrated device Download PDFInfo
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- CN213543246U CN213543246U CN202022206023.1U CN202022206023U CN213543246U CN 213543246 U CN213543246 U CN 213543246U CN 202022206023 U CN202022206023 U CN 202022206023U CN 213543246 U CN213543246 U CN 213543246U
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- flue
- grate cooler
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Abstract
The utility model provides a cement kiln head waste heat boiler and cold quick-witted integrated device of cement line grate, including bed frame and fixed mounting AQC boiler on the bed frame, the bottom of AQC boiler is connected with the flue, flue longitudinal gradient sets up and runs through cement line kiln head operation layer platform, cement line kiln head operation layer platform below is provided with the grate cooler, the tail gas outlet of grate cooler links to each other with the air intake of flue, the air intake of grate cooler links to each other with supply-air duct, be provided with the fan among the supply-air duct, still be provided with on the flue and mix the cold blast valve, just mix the cold blast valve and be located cement line kiln head operation layer platform top, be provided with the coal injection combustor on the cement line kiln head operation layer platform. The utility model greatly improves the power generation efficiency and saves the power consumption of the cement line; and the energy utilization rate is improved.
Description
Technical Field
The utility model relates to a cement kiln waste heat power generation's technical field, more specifically relates to a cement kiln head waste heat boiler and cold quick-witted integrated device of cement line grate.
Background
The waste heat boiler at the kiln head of the cement kiln is equipment for generating power by using low-pressure superheated steam generated by waste heat of waste gas discharged by a cement line grate cooler, more importantly, is cooling equipment of a cement line, and meets the requirement of the inlet air temperature of a dust collector after cooling. At present, in a conventional mode, as shown in fig. 1, a kiln head waste heat boiler is arranged on an open ground beside a kiln head grate cooler factory building, a long-distance flue gas pipeline is used for connecting a grate cooler and the waste heat boiler, flue gas firstly passes through a front-mounted dust separation device and then enters the waste heat boiler, enters a dust collector after heat exchange and temperature reduction, and is exhausted into the atmosphere through a head exhaust fan after dust removal.
However, in the traditional arrangement mode, the dust separation device and the waste heat boiler arranged in front occupy the empty space of a factory, the waste heat boiler needs to take roots from the ground as a foundation, the distance between the smoke and air pipelines is long, the civil engineering and non-standard engineering quantity is large, the engineering construction investment cost is increased, meanwhile, the temperature loss and the pressure loss are large, the temperature loss from the air intake port of the grate cooler to the air intake port of the waste heat boiler is calculated to be about 20-30 ℃, the pressure loss is about 300-500 Pa, the loss of generated energy is up to 1.5kWh/t.cl, meanwhile, the increase of the system resistance brings the increase of the power consumption of the cement line head exhaust fan, the increase of about 0.2kWh/t.cl is realized, and the power loss of the generated energy is increased at the same time, and the power consumption of a cement.
Therefore, there is an urgent need in the art for a technical solution that can simplify the system, save the space, and effectively reduce the temperature loss and pressure loss of the flue gas.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cement kiln head exhaust-heat boiler and cold quick-witted integrated device of cement line comb to the not enough of above-mentioned prior art.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a cement kiln head waste heat boiler and cold quick-witted integrated device of cement line grate, includes bed frame and fixed mounting AQC boiler on the bed frame, the bottom of AQC boiler is connected with the flue, flue longitudinal gradient sets up and runs through cement line kiln head operation layer platform, cement line kiln head operation layer platform below is provided with the grate cooler, the tail gas outlet of grate cooler links to each other with the air intake of flue, the air intake and the supply-air duct of grate cooler link to each other, be provided with the fan in the supply-air duct, still be provided with on the flue and mix the cold blast gate, just mix the cold blast gate and be located cement line kiln head operation layer platform top, be provided with the coal injection combustor on cement line kiln head operation layer platform.
The base frame is further provided with a guide support and a fixed support from top to bottom, the guide support is arranged at the bent part of the flue and fixedly connected with the flue, and the fixed support is arranged at the vertical part of the flue, which is close to the cement line kiln head running layer platform, and fixedly connected with the flue.
The cross section of the flue is rectangular.
Spiral finned tubes are arranged in the AQC boiler.
Four rows of inverted angle steels and two rows of dummy pipes which are not communicated with working media are arranged at the inlet of the first heating surface of the AQC boiler.
And a dust collector and an induced draft fan are arranged at the upper end of the AQC boiler.
Compared with the prior art, the utility model beneficial effect be: the AQC boiler is directly arranged on a firing kiln head factory building of a cement production line, the bottom of the boiler is directly connected with the grate cooler and shares a base and a platform with the production line, the boiler is not provided with an ash hopper and ash unloading equipment such as a blanking device and a zipper machine, the power generation efficiency is greatly improved, and the power consumption of the cement line is saved; in addition, the AQC boiler is almost connected in series with the cement production line, and the AQC boiler is used for generating power and cooling the cement production line, so that the energy utilization rate is improved; in addition, the large-section flue is used for replacing an air pipe, so that the air speed is greatly reduced, and large-particle clinker particles flow back to the grate cooler through the flue, the heating surface of the boiler is effectively protected, and the problem of abrasion of the boiler is solved.
Drawings
Fig. 1 is a schematic view of a prior art structure.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a partial enlarged view of the upper bracket of the flue of the present invention.
Detailed Description
The invention will be further elucidated below on the basis of a specific embodiment.
The integrated device of the cement kiln head waste heat boiler and the cement line grate cooler shown in the figures 2-3 comprises a base frame and an AQC boiler 3 fixedly installed on the base frame, wherein the AQC boiler 3 is vertically arranged, a dust collector and an induced draft fan are arranged at the upper end of the AQC boiler 3, a flue 2 is connected to the bottom of the AQC boiler 3, and the cross section of the flue 2 is rectangular. The flue 2 is longitudinally obliquely arranged and penetrates through a cement line kiln head operation layer platform 7, the grate cooler 1 is arranged below the cement line kiln head operation layer platform 7, a tail gas outlet of the grate cooler 1 is connected with an air inlet of the flue, the air inlet of the grate cooler 1 is connected with an air supply pipeline, a fan 6 is arranged in the air supply pipeline, a mixed cold air valve 4 is further arranged on the flue 2, the mixed cold air valve 4 is located above the cement line kiln head operation layer platform 7, and a coal injection combustor 5 is arranged on the cement line kiln head operation layer platform 7. When the mixed cooling air valve 4 is opened, the flue 2 is communicated with the outside cold air, so that the high-temperature waste gas can be prevented from being over-heated.
A guide support 8 and a fixed support 9 are further arranged on the base frame from top to bottom, the guide support 8 is arranged at the bending position of the flue 2 and fixedly connected with the flue 2, and the fixed support 9 is arranged at the vertical position, close to the cement line kiln head running layer platform 7, of the flue 2 and fixedly connected with the flue 2.
Spiral finned tubes are arranged in the AQC boiler 3. Four rows of inverted angle steels and two rows of false pipes which are not communicated with working media are arranged at the inlet of the first heating surface of the AQC boiler 3 and are used as anti-abrasion measures, so that the heating surface of the boiler is effectively protected, and the abrasion problem of the boiler is solved.
The whole AQC boiler device is perfectly integrated with the grate cooler and integrally distributed, an air cooler of a cement line is completely replaced, the whole boiler system is connected with the kiln head waste gas treatment series of the production line, the bottom of the boiler is directly connected with the grate cooler and shares a foundation and a platform with the production line, and the boiler is not provided with an ash hopper, a feeder, a zipper machine and other ash discharge equipment and foundations thereof; the distance from the air intake port of the grate cooler to the waste heat boiler is very close, and the inlet valve of the boiler is cancelled, so that air intake of the boiler is very smooth, the system resistance is very small, the temperature loss is less than or equal to 5 ℃, the pressure loss is less than or equal to 50Pa, the tail gas of the grate cooler completely enters the boiler, the waste heat of the waste gas of the grate cooler 1 is almost completely absorbed by the AQC boiler 3, and the discharged waste gas with the temperature of less than 90 ℃ enters the dust collector and is discharged into the atmosphere through the induced draft fan.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
The above description is only the preferred embodiment of the present invention, but the present invention is not limited to the above-mentioned specific embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (6)
1. A cement kiln head waste heat boiler and cement line grate cooler integrated device comprises a base frame and an AQC boiler (3) fixedly arranged on the base frame, it is characterized in that the bottom of the AQC boiler (3) is connected with a flue (2), the flue (2) is longitudinally and obliquely arranged and penetrates through a cement line kiln head running layer platform (7), a grate cooler (1) is arranged below the cement line kiln head running layer platform (7), the tail gas outlet of the grate cooler (1) is connected with the air inlet of the flue, the air inlet of the grate cooler (1) is connected with the air supply pipeline, a fan (6) is arranged in the air supply pipeline, a mixed cold air valve (4) is also arranged on the flue (2), and the mixed cold air valve (4) is positioned above the cement line kiln head running layer platform (7), and a coal injection burner (5) is arranged on the cement line kiln head running layer platform (7).
2. The cement kiln head waste heat boiler and cement line grate cooler integrated device as claimed in claim 1, wherein a guide support (8) and a fixed support (9) are further arranged on the base frame from top to bottom, the guide support (8) is arranged at the bent part of the flue (2) and fixedly connected with the flue (2), and the fixed support (9) is arranged at the vertical part of the flue (2) close to the cement line kiln head running layer platform (7) and fixedly connected with the flue (2).
3. The cement kiln head waste heat boiler and cement line grate cooler integrated device as claimed in claim 1, wherein the cross-sectional shape of the flue (2) is rectangular.
4. The cement kiln head waste heat boiler and cement line grate cooler integrated device as claimed in claim 1, wherein the AQC boiler (3) is internally provided with spiral finned tubes.
5. The cement kiln head waste heat boiler and cement line grate cooler integrated device as claimed in claim 1, wherein the inlet of the first heating surface of the AQC boiler (3) is provided with four rows of inverted angle steels and two rows of dummy pipes which are not communicated with working media.
6. The integrated device of the cement kiln head waste heat boiler and the cement line grate cooler as claimed in claim 1, wherein the upper end of the AQC boiler (3) is provided with a dust collector and an induced draft fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022206023.1U CN213543246U (en) | 2020-09-30 | 2020-09-30 | Cement kiln head waste heat boiler and cement line grate cooler integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022206023.1U CN213543246U (en) | 2020-09-30 | 2020-09-30 | Cement kiln head waste heat boiler and cement line grate cooler integrated device |
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| Publication Number | Publication Date |
|---|---|
| CN213543246U true CN213543246U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022206023.1U Active CN213543246U (en) | 2020-09-30 | 2020-09-30 | Cement kiln head waste heat boiler and cement line grate cooler integrated device |
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| Country | Link |
|---|---|
| CN (1) | CN213543246U (en) |
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- 2020-09-30 CN CN202022206023.1U patent/CN213543246U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211018 Address after: 300400 floor 7, building 3, Beichen building, southwest of the intersection of Beijing Tianjin highway and Longzhou Road, BeiCang Town, Beichen District, Tianjin Patentee after: Sinoma new material equipment technology (Tianjin) Co.,Ltd. Address before: Block C, Beichen building, 1 Longzhou Road, Beichen District, Tianjin 300040 Patentee before: SINOMA ENERGY CONSERVATION Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230516 Address after: 239000 Yaopu Town, Nanqiao District, Chuzhou City, Anhui Province Patentee after: Chuzhou Zhongcai Energy Saving Waste Heat Power Generation Co.,Ltd. Address before: 300400 floor 7, building 3, Beichen building, southwest of the intersection of Beijing Tianjin highway and Longzhou Road, BeiCang Town, Beichen District, Tianjin Patentee before: Sinoma new material equipment technology (Tianjin) Co.,Ltd. |
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| TR01 | Transfer of patent right |