CN220288134U - Capacity expanding device for decomposing furnace - Google Patents
Capacity expanding device for decomposing furnace Download PDFInfo
- Publication number
- CN220288134U CN220288134U CN202321907732.XU CN202321907732U CN220288134U CN 220288134 U CN220288134 U CN 220288134U CN 202321907732 U CN202321907732 U CN 202321907732U CN 220288134 U CN220288134 U CN 220288134U
- Authority
- CN
- China
- Prior art keywords
- furnace body
- gooseneck
- decomposing furnace
- decomposing
- expansion device
- Prior art date
- 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.)
- Active
Links
- 244000261422 Lysimachia clethroides Species 0.000 claims abstract description 46
- 230000001174 ascending effect Effects 0.000 claims abstract description 12
- 230000009467 reduction Effects 0.000 claims abstract description 6
- 230000000630 rising effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003245 coal Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a decomposing furnace capacity-expanding device, which comprises an ascending section furnace body, a gooseneck and a descending section furnace body which are sequentially connected to a decomposing furnace body, wherein two ends of the ascending section furnace body are respectively connected with one end of the decomposing furnace body and one end of the gooseneck; the gooseneck is an inverted U-shaped gooseneck, and the position of the tertiary air interface on the decomposing furnace body moves upwards to enlarge the denitrification reduction area in the decomposing furnace body. The expansion device of the decomposing furnace has simple structure and convenient installation and use, can improve the clinker yield without changing the size of the kiln tail frame, reduce the standard coal consumption of the clinker and reduce the concentration of nitrogen oxides at the outlet of the decomposing furnace. Meanwhile, the resistance increment of the decomposing furnace is reduced, and the productivity is improved.
Description
Technical Field
The utility model relates to the technical field of cement production, in particular to a capacity expanding device of a decomposing furnace.
Background
The existing decomposing furnace has limited capacity, is difficult to bring production scale improvement to cement enterprises under the conditions of not changing the size of a kiln tail frame and saving engineering investment, cannot reduce coal consumption and pollutant emission, and has difficulty in improving the competitiveness of the enterprises.
Therefore, there is an urgent need to provide a capacity expansion device for a decomposing furnace to solve the above technical problems.
Disclosure of Invention
The utility model aims to provide a capacity expansion device of a decomposing furnace, which has a simple structure and is convenient to install and use, the clinker yield can be improved without changing the size of a kiln tail frame, the standard coal consumption of the clinker can be reduced, and the concentration of nitrogen oxides at the outlet of the decomposing furnace can be reduced. Meanwhile, the resistance increment of the decomposing furnace is reduced, and the productivity is improved.
In order to achieve the above object, the present utility model provides a decomposing furnace capacity-expanding device, which comprises a rising section furnace body, a gooseneck and a falling section furnace body which are sequentially connected to a decomposing furnace body, wherein two ends of the rising section furnace body are respectively connected with one ends of the decomposing furnace body and the gooseneck, one end of the falling section furnace body is connected with the other end of the gooseneck, and the other end of the falling section furnace body extends downwards and forms a fork tube structure at the tail end; the gooseneck is an inverted U-shaped gooseneck, and the position of the tertiary air interface on the decomposing furnace body moves upwards to enlarge the denitrification reduction area in the decomposing furnace body.
Preferably, the turning head on the gooseneck is provided as a square elbow.
Preferably, a chamfer is formed at the outer wall of the square elbow over the gooseneck.
Preferably, two ends of the rising section furnace body are respectively welded on one end of the decomposing furnace body and one end of the gooseneck.
Preferably, one end of the down leg furnace is welded to the other end of the gooseneck.
Preferably, the weld is a seal weld.
Preferably, two ends of the rising section furnace body are detachably connected with one ends of the decomposing furnace body and the gooseneck respectively.
Preferably, one end of the descending section furnace body is detachably connected with the other end of the gooseneck.
Preferably, the detachable connection is provided with a sealing ring.
Preferably, the ascending section furnace body and the descending section furnace body are arranged in parallel.
According to the technical scheme, the inverted U-shaped gooseneck is adopted, so that the airflow is changed in the furnace only once in the process of entering the descending-section furnace body again through the ascending-section furnace body, the flow field is stable, and the resistance is low; meanwhile, the tail end of the descending section furnace body is provided with a fork tube structure, and the fork tube design can effectively reduce resistance and prevent dust accumulation. In addition, the utility model lifts the tertiary air inlet port, increases the denitrification and reduction area in the furnace, ensures that the pulverized coal sprayed into the decomposing furnace burns in an oxygen-deficient environment, and inhibits NO generated in the pulverized coal combustion process X The content of nitrogen oxides at the outlet of the decomposing furnace is reduced.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a capacity expansion device of a decomposing furnace according to the present utility model.
Description of the reference numerals
1-rising section furnace body 2-gooseneck
4-fork tube structure of 3-descending-section furnace body
5-tertiary air interface 6-chamfer
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
In the present utility model, unless otherwise indicated, terms such as "upper, lower, inner, outer" and the like are used merely to denote orientations of the term in a normal use state or are commonly understood by those skilled in the art, and should not be construed as limitations of the term.
Referring to fig. 1, the utility model provides a decomposing furnace capacity-expanding device, which comprises a rising section furnace body 1, a gooseneck 2 and a falling section furnace body 3 which are sequentially connected to a decomposing furnace body, wherein two ends of the rising section furnace body 1 are respectively connected with one end of the decomposing furnace body and one end of the gooseneck 2, one end of the falling section furnace body 3 is connected with the other end of the gooseneck 2, and the other end of the falling section furnace body 3 extends downwards and is provided with a fork tube structure 4 at the tail end; the gooseneck 2 is an inverted U-shaped gooseneck, and the position of the tertiary air interface 5 on the decomposing furnace body moves upwards to enlarge the denitrification reduction area in the decomposing furnace body.
Through the technical scheme, the inverted U-shaped gooseneck 2 is adopted, so that the airflow is changed in the furnace only once in the process of passing through the ascending furnace body 1 and then entering the descending furnace body 3, the flow field is stable, and the resistance is low; meanwhile, the fork tube structure 4 is formed at the tail end of the descending-section furnace body 3, and the resistance can be effectively reduced and dust accumulation can be prevented by utilizing the design of the fork tube. In addition, the utility model lifts the tertiary air inlet port 5, increases the denitrification and reduction area in the furnace, ensures that the pulverized coal sprayed into the decomposing furnace burns in an oxygen-deficient environment, and inhibits NO generated in the pulverized coal combustion process X Is used for reducing the decomposing furnaceOutlet nitrogen oxide content.
In the present embodiment, in order that the structure of the expansion device of the decomposing furnace does not affect the surrounding facilities and materials when the expansion device is installed and mounted, it is preferable that the turning head on the gooseneck 2 is provided as a square elbow.
Furthermore, in order to prevent dead zones from occurring in the inner area of the square elbow, which may cause serious ash accumulation and even block the flow channel to affect the flow smoothness of the air flow, it is preferable to form a chamfer 6 on the outer wall of the square elbow on the gooseneck 2, so that the dead zones in the gooseneck 2 can be greatly reduced, and the efficient operation of the expansion device of the decomposing furnace can be ensured.
In one embodiment, in order to improve the integrity of the furnace body 1 of the rising section of the expansion device of the decomposing furnace after being connected with the decomposing furnace body and the gooseneck 2, the mechanical strength after being connected is enhanced to prolong the service life of each component, and preferably, two ends of the furnace body 1 of the rising section are respectively welded on one end of the decomposing furnace body and one end of the gooseneck 2.
Similarly, in order to improve the integrity of the expansion device for the decomposing furnace after the descending furnace body 3 is connected with the gooseneck 2, the mechanical strength after connection is enhanced to prolong the service life of each component, and preferably, one end of the descending furnace body 3 is welded to the other end of the gooseneck 2.
The welding can be any one of the stable and reliable welding modes commonly used in the field, but because the interior of the decomposing furnace capacity-expanding device passes through air flow, the welding is preferably sealed welding in order to avoid environmental pollution or even damage to human body caused by leakage of the air flow from a gap formed at the joint. Therefore, the tightness of the welding part can be effectively ensured, and the safety and the high efficiency of the decomposing furnace capacity-expanding device during use are ensured.
In another embodiment, in order to quickly detach and install the ascending furnace body 1 and the decomposing furnace body and the ascending furnace body 1 and the gooseneck 2, it is convenient to find out in time when a fault occurs and to detach and then to maintain or replace, and it is preferable that two ends of the ascending furnace body 1 are detachably connected to one ends of the decomposing furnace body and the gooseneck 2, respectively. By adopting the connecting mode, the ascending furnace body 1 or the gooseneck 2 with different models or different shapes can be replaced according to the specific structure and the use requirement of the working environment, so that the flexibility of the use of the expansion device of the decomposing furnace is improved and the application range of the expansion device of the decomposing furnace is widened.
Likewise, in order to quickly detach and install the descent block furnace body 3 and the gooseneck 2, it is convenient to find and disassemble in time when a fault occurs and then maintain or replace, and it is preferable that one end of the descent block furnace body 3 is detachably connected with the other end of the gooseneck 2. By adopting the connection mode, the descending-section furnace body 3 or the gooseneck 2 with different models or different shapes can be replaced according to the specific structure and the use requirement of the working environment, so that the flexibility of the use of the expansion device of the decomposing furnace is improved and the application range of the expansion device of the decomposing furnace is widened in an intangible way.
The detachable connection can be any connection mode of quick detachment and installation commonly used in the field, however, because the inside of the expansion device of the decomposing furnace is provided with air flow, in order to avoid environmental pollution and even damage to human body caused by leakage of the air flow from a gap formed at the connection part, a sealing ring is preferably arranged at the detachable connection part. Therefore, the tightness of the detachable connection part can be effectively ensured, and the safety and the high efficiency of the decomposing furnace capacity-expanding device during use are ensured.
In order to reduce the occupied area of the expansion device of the decomposing furnace and ensure the smoothness of airflow circulation in the installation and use process, the ascending furnace body 1 and the descending furnace body 3 are preferably arranged in parallel.
In actual use, the decomposing furnace capacity-expanding device fully utilizes the existing preheater framework, increases the effective furnace capacity of the decomposing furnace under the condition of not changing the arrangement of surrounding equipment, improves the clinker yield, improves the capacity load of the decomposing furnace, ensures that wind, coal and materials are more uniformly mixed by a large volume of furnace capacity, ensures that limestone decomposition and pulverized coal combustion are more complete, and is beneficial to reducing standard clinker consumption and pollutant emission.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (10)
1. The decomposing furnace capacity expansion device is characterized by comprising an ascending section furnace body (1), a gooseneck (2) and a descending section furnace body (3) which are sequentially connected to a decomposing furnace body, wherein two ends of the ascending section furnace body (1) are respectively connected with one ends of the decomposing furnace body and the gooseneck (2), one end of the descending section furnace body (3) is connected with the other end of the gooseneck (2), and the other end of the descending section furnace body (3) extends downwards and is provided with a fork tube structure (4) at the tail end; the gooseneck (2) is an inverted U-shaped gooseneck, and the position of the tertiary air interface (5) on the decomposing furnace body moves upwards to enlarge the denitrification reduction area in the decomposing furnace body.
2. The expansion device of a decomposing furnace according to claim 1, wherein the turning head on the gooseneck (2) is provided as a square elbow.
3. The expansion device of the decomposing furnace according to claim 2, wherein a chamfer (6) is formed at the outer wall of the square elbow on the gooseneck (2).
4. The expansion device of the decomposing furnace according to claim 1, wherein two ends of the rising section furnace body (1) are welded to one ends of the decomposing furnace body and the gooseneck (2), respectively.
5. The expansion device of the decomposing furnace according to claim 1, wherein one end of the descending furnace body (3) is welded to the other end of the gooseneck (2).
6. The apparatus of claim 4 or 5, wherein the weld is a seal weld.
7. The expansion device of the decomposing furnace according to claim 1, wherein two ends of the rising section furnace body (1) are detachably connected with one ends of the decomposing furnace body and the gooseneck (2), respectively.
8. The expansion device of the decomposing furnace according to claim 1, wherein one end of the descending furnace body (3) is detachably connected with the other end of the gooseneck (2).
9. The expansion device of claim 7 or 8, wherein the detachable connection is provided with a sealing ring.
10. The expansion device of the decomposing furnace according to claim 1, wherein the ascending furnace body (1) and the descending furnace body (3) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907732.XU CN220288134U (en) | 2023-07-19 | 2023-07-19 | Capacity expanding device for decomposing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321907732.XU CN220288134U (en) | 2023-07-19 | 2023-07-19 | Capacity expanding device for decomposing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288134U true CN220288134U (en) | 2024-01-02 |
Family
ID=89335266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321907732.XU Active CN220288134U (en) | 2023-07-19 | 2023-07-19 | Capacity expanding device for decomposing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220288134U (en) |
-
2023
- 2023-07-19 CN CN202321907732.XU patent/CN220288134U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220288134U (en) | Capacity expanding device for decomposing furnace | |
| CN204881212U (en) | Novel cold machine of all -round water -stop ring | |
| CN211753404U (en) | Filter core convenient to detach is clear environment-friendly discharges chimney | |
| CN208599466U (en) | A kind of desulphurization denitration dedusting integral type reaction tower | |
| CN205014847U (en) | Novel cold quick -witted upper portion water seal structure of all -round water -stop ring | |
| CN203586800U (en) | Lap joint type sealing device between annular cooler trolley breast boards and door-type sealing cover | |
| CN203170223U (en) | Common wall structure of reactor and flue gas inlet pipeline in flue gas denitration system | |
| CN214635291U (en) | SNCR (selective non-catalytic reduction) denitration system for flue gas of cement kiln | |
| CN105465802B (en) | A kind of biomass gasifying furnace reciprocal grate | |
| CN105351932B (en) | A kind of float glass furnace oxygen-enriched burning device | |
| CN208553708U (en) | Desulphurization denitration dust pelletizing system | |
| CN207667419U (en) | A kind of energy saving smoke desulfuring and denitrifying apparatus | |
| CN209325771U (en) | A kind of easily changeable boiler grid plate hood for circulating fluid bed | |
| CN213668754U (en) | Ventilation air methane and low-concentration gas mixing device | |
| CN215864699U (en) | Glass kiln exhaust-heat boiler denitration connecting flue equipment with ash discharging device | |
| CN208526301U (en) | A kind of spray gun device for macromolecule denitration | |
| CN217340743U (en) | Acid regeneration system | |
| CN111701363A (en) | Desulfurization and denitrification bag type dedusting method and system | |
| CN205860000U (en) | Smoke eliminator and be provided with the CFBB of this device | |
| CN204182288U (en) | A kind of ring-like SCR reactor for low-temperature denitration of flue gas | |
| CN110107716A (en) | A kind of air-flow switching valve group and control method | |
| CN218627784U (en) | Device suitable for metallurgical stove electrode hole high temperature flue gas is sealed | |
| CN209978633U (en) | Cold quick-witted self sealss device of ring | |
| CN212564884U (en) | High-temperature dust-containing flue gas guiding device | |
| CN213924885U (en) | Air supply device and blast furnace with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |