CN211695800U - Tail gas recycling device for fluidized bed - Google Patents
Tail gas recycling device for fluidized bed Download PDFInfo
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- CN211695800U CN211695800U CN202020377118.7U CN202020377118U CN211695800U CN 211695800 U CN211695800 U CN 211695800U CN 202020377118 U CN202020377118 U CN 202020377118U CN 211695800 U CN211695800 U CN 211695800U
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- tail gas
- heat exchanger
- pipeline
- air
- air inlet
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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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Abstract
The utility model belongs to the technical field of preparation edible salt and specifically relates to a device is recycled to ebullated bed tail gas, including the ebullated bed, intake stack and the tail gas pipeline of being connected with the ebullated bed, its characterized in that: the tail gas pipeline is connected with the hot blast stove through a heat exchanger, and the hot blast stove is connected with the fluidized bed through a hot blast pipeline; an air inlet pipeline is arranged on the heat exchanger. The utility model discloses can more Ha waste heat recovery with in the tail gas utilizes, reduce energy resource consumption, reduce manufacturing cost.
Description
Technical Field
The utility model relates to a preparation edible salt field, especially a boiling bed tail gas recycles device.
Background
In the prior art, a hot blast stove and a fluidized bed are usually matched for drying treatment to refine first-level salt, natural gas is combusted by the hot blast stove to heat normal-temperature air, when the air is heated to 170-190 ℃, heated hot air is conveyed into the fluidized bed through a pipeline to dry the salt, but only a small part of hot air in a hot air pipeline is used for drying, most of the hot air is discharged into the air through a tail gas discharge pipeline of the fluidized bed, and the temperature of tail gas discharged into the air can reach 100 ℃, so that a large amount of heat sources are wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, the boiling bed tail gas recycling device that power consumption is low.
The utility model adopts the following technical scheme:
a device for recycling tail gas of a fluidized bed comprises the fluidized bed, an air inlet pipeline and a tail gas pipeline connected with the fluidized bed, wherein the tail gas pipeline is connected with a hot blast stove through a heat exchanger, and the hot blast stove is connected with the fluidized bed through a hot blast pipeline; an air inlet pipeline is arranged on the heat exchanger.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses retrieve the tail gas of ebullated bed through the heat exchanger and be utilizing, then lead the air of dry heat to the reheating in the hot-blast furnace, shortened the heat time of hot-blast furnace, reduced energy resource consumption, reduced manufacturing cost.
Further, the utility model discloses a preferred scheme is:
the heat exchanger is provided with two air inlets and two air outlets, one air inlet is connected with an air inlet pipeline, the other air inlet is connected with a tail gas pipeline, one air outlet of the heat exchanger is connected with the air inlet of the hot blast stove through an air supply pipeline, and the other air outlet is externally connected with a tail gas treatment device.
The tail gas pipeline is connected with the air inlet of the heat exchanger through an induced draft fan.
The heat exchanger adopts a fin structure heat exchanger.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: a bubbling bed 1; an exhaust gas duct 2; an air inlet duct 3; a heat exchanger 4; an air supply duct 5; a hot blast stove 6; a hot air duct 7; and a draught fan 8.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Referring to the drawings: a tail gas recycling device for a fluidized bed is composed of a fluidized bed 1, an air inlet pipeline 3 and a tail gas pipeline 2 connected with the fluidized bed 1.
As shown in fig. 1, the heat exchanger 4 is a double-flow channel heat exchanger, one air inlet of the heat exchanger 4 is connected with the air inlet pipeline 3, the heat exchanger 4 is connected with the air compressor through the air inlet pipeline 3, and the other air inlet of the heat exchanger 4 is connected with the tail gas pipeline 2; an air outlet of the heat exchanger 4 is connected with an air inlet of a hot blast stove 6 through an air supply pipeline 5, and the air supply pipeline 5 conveys air in the pipe into the hot blast stove 6 through a high-pressure fan; the other air outlet of the heat exchanger 4 is externally connected with a tail gas treatment device. The air outlet of the hot blast stove 6 is connected with the air inlet of the fluidized bed 1 through a hot air pipeline 7.
The utility model discloses when using, compressed air is in 5 entering heat exchanger 4 of blast pipe, humid hot-air among the tail gas pipeline 2 gets into in heat exchanger 4 and carries out the heat exchange with the normal atmospheric temperature air through draught fan 8, the normal atmospheric temperature air preheats in heat exchanger 4 and forms the dry hot-air, the dry hot-air after preheating carries out the secondary heating by blast pipe 5 under high pressure positive blower's effect in 6 air intakes of hot-blast furnace get into hot-blast furnace 6, dry hot-air temperature in the hot-blast furnace reaches about 180 ℃, send into the boiling bed 1 with the dry hot-air in through hot-blast pipeline 7. And the tail gas after heat exchange with the normal-temperature air in the heat exchanger 4 is discharged from the other air outlet of the heat exchanger 4, enters the tail gas treatment device for treatment and then is discharged into the atmosphere.
In the embodiment, the heat exchanger 4 adopts a fin structure heat exchanger, moist hot air with dust enters the heat exchanger 4 to exchange heat with normal temperature air, dry hot air enters the hot blast stove to be heated secondarily, and tail gas after heat exchange is discharged from the heat exchanger and enters the tail gas treatment device to be treated.
The utility model discloses can utilize a large amount of waste heat in the tail gas, let in the heat exchanger 4 with the waste heat, the clean air after the heat transfer reaches the assigned temperature at the secondary heating through hot-blast furnace 6, has shortened later stage hot-blast furnace 6's heating time, has reduced the consumption of the energy.
The above is only the concrete implementation manner of the present invention, but the protection of the present invention is not limited to this, and all the changes or substitutions related to the equivalent proposed by the technical features of the present technical solution that can be thought by those skilled in the art are covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a device is recycled to ebullated bed tail gas, includes ebullated bed, intake stack and the tail gas pipeline of being connected with the ebullated bed, its characterized in that: the tail gas pipeline is connected with the hot blast stove through a heat exchanger, and the hot blast stove is connected with the fluidized bed through a hot blast pipeline; an air inlet pipeline is arranged on the heat exchanger.
2. The ebullated bed tail gas recycle device of claim 1, wherein: the heat exchanger is provided with two air inlets and two air outlets, one air inlet is connected with an air inlet pipeline, the other air inlet is connected with a tail gas pipeline, one air outlet of the heat exchanger is connected with the air inlet of the hot blast stove through an air supply pipeline, and the other air outlet is externally connected with a tail gas treatment device.
3. The ebullated bed tail gas recycle device of claim 1, wherein: the tail gas pipeline is connected with the air inlet of the heat exchanger through an induced draft fan.
4. The ebullated bed tail gas recycle device of claim 1, wherein: the heat exchanger adopts a fin structure heat exchanger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920637391 | 2019-05-07 | ||
| CN2019206373916 | 2019-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211695800U true CN211695800U (en) | 2020-10-16 |
Family
ID=72779827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020377118.7U Active CN211695800U (en) | 2019-05-07 | 2020-03-23 | Tail gas recycling device for fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211695800U (en) |
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2020
- 2020-03-23 CN CN202020377118.7U patent/CN211695800U/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: 20221221 Address after: 063611 Daqing River, Tangshan City Port Development Zone, Hebei Patentee after: Hebei Yongda Salt Co.,Ltd. Address before: 063600 Daqinghe, Haigang Development Zone, Tangshan City, Hebei Province Patentee before: TANGSHAN SANYOU SALINIZATION CO.,LTD. |
|
| TR01 | Transfer of patent right |