CN112484072A - Hot-blast furnace hot blast heater and air inlet device thereof - Google Patents
Hot-blast furnace hot blast heater and air inlet device thereof Download PDFInfo
- Publication number
- CN112484072A CN112484072A CN202011332396.1A CN202011332396A CN112484072A CN 112484072 A CN112484072 A CN 112484072A CN 202011332396 A CN202011332396 A CN 202011332396A CN 112484072 A CN112484072 A CN 112484072A
- Authority
- CN
- China
- Prior art keywords
- air guide
- hot blast
- guide pipe
- air
- blast stove
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 239000000446 fuel Substances 0.000 abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
- F23L1/02—Passages or apertures for delivering primary air for combustion by discharging the air below the fire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/008—Air heaters using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0057—Guiding means
- F24H9/0063—Guiding means in air channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0073—Arrangement or mounting of means for forcing the circulation of air
Abstract
The application discloses hot-blast furnace hot blast blowpipe apparatus includes: a blower (1); the inlet of the air guide pipe (2) is communicated with the blower (1), and the outlet of the air guide pipe (2) is arranged below a fire grate of the hot blast stove; an air guide plate (3) is arranged at one end of the outlet of the air guide pipe (2), and a plurality of through holes (4) are formed in the pipe wall of the outlet end of the air guide pipe (2). The application still provides an use above-mentioned hot-blast furnace hot blast main air inlet unit. The application provides a hot-blast furnace hot blast furnace and can provide oxygen for the fuel of the different positions of grate top to guarantee that the fuel burning is abundant, improve the work efficiency of hot-blast furnace.
Description
Technical Field
The application relates to the technical field of combustion equipment, in particular to an air inlet device of a hot blast stove and the hot blast stove.
Background
The hot blast stove is a thermal device integrating combustion and heat transfer processes. The hot blast stove generates heat through the combustion of fuel and transfers the heat to air to form hot air.
However, in the existing hot blast stove, the air flow in the hearth is irregular, and particularly when the air flow flows through the fuel stacked on the grate, the air flow is blocked and the circulation is not smooth, so that the fuel combustion in the hot blast stove is influenced, and the working efficiency of the hot blast stove is influenced.
Disclosure of Invention
In order to solve the technical problems, the first object of the invention is to provide an air inlet device of a hot blast stove; the second purpose of the invention is to provide a hot blast stove using the hot blast stove air inlet device; the application provides a hot-blast furnace hot blast furnace and can provide oxygen for the fuel of the different positions of grate top to guarantee that the fuel burning is abundant, improve the work efficiency of hot-blast furnace.
The technical scheme provided by the invention is as follows:
an air intake device of a hot blast stove comprises:
a blower;
the inlet of the air guide pipe is communicated with the blower, and the outlet of the air guide pipe is arranged below a fire grate of the hot blast stove;
and an air guide plate is arranged at one end of the outlet of the air guide pipe, and a plurality of through holes are formed in the pipe wall at one end of the outlet of the air guide pipe.
Preferably, the air deflector comprises a plurality of blades, and a gap is formed between the blades.
Preferably, the air deflector is composed of an annular connecting piece and fan blades respectively connected with the annular connecting piece.
Preferably, the igniter is arranged in the air guide pipe, and the central through hole of the annular connecting piece is used for fixing the igniter.
Preferably, the through holes are distributed on the pipe wall of the air guide pipe facing the fire grate.
Preferably, the wall of the air guide pipe is provided with 3-10 rows of through holes, and each row comprises 3-10 through holes.
Preferably, an exhaust pipe is further arranged at one end, close to the blower, of the air guide pipe, and the exhaust pipe is provided with a valve.
The hot blast stove comprises a combustion chamber, a feeding hole formed in the side wall of the combustion chamber, a fire grate arranged below the combustion chamber, an ash box arranged below the fire grate, and a hot blast stove air inlet device, wherein an outlet of the air guide pipe is arranged in the ash box and is positioned below the fire grate.
Preferably, the outlet of the air guide pipe is positioned below the center of the grate.
The application firstly provides an air inlet device of a hot blast stove, which is provided with an air guide pipe and guides air generated by the work of an air blower into the lower part of a fire grate of the hot blast stove. The air guide pipe is provided with an air guide plate at one end of an outlet below the fire grate, the pipe wall of the air guide pipe is provided with a through hole, part of air flow entering the air guide pipe passes through the air guide plate and flows out from one end of the outlet, the other part of air flow passes through the through hole and flows out, and due to the fact that the positions and the orientations of the air guide plate and the through hole are different, the air flow flowing out from the two positions are also located at different positions below the fire grate, when the air flow passes through the fire grate, oxygen can be provided for fuel at different positions above the fire grate.
The application also provides a hot blast stove, which uses the hot blast stove air inlet device.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic cross-sectional view of an air intake device of a hot blast stove according to an embodiment of the present invention;
FIG. 2 is a schematic top view of an air intake device of a hot blast stove according to an embodiment of the present invention;
FIG. 3 is a partially enlarged schematic view of an air intake device of the hot blast stove according to an embodiment of the present invention; wherein a is an igniter;
FIG. 4 is a partial enlarged schematic view of another angle of the air intake device of the hot blast stove in the embodiment of the present invention;
reference numerals: 1-a blower; 2-a wind guide pipe; 3-a wind deflector; 4-a through hole; 5-an exhaust pipe.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
The embodiments of the present application are written in a progressive manner.
As shown in fig. 1 to 4, an embodiment of the present invention provides an air intake device of a hot blast stove, including:
a blower 1;
the inlet of the air guide pipe 2 is communicated with the blower 1, and the outlet of the air guide pipe 2 is arranged below a fire grate of the hot blast stove;
an air guide plate 3 is arranged at one end of the outlet of the air guide pipe 2, and a plurality of through holes 4 are formed in the pipe wall of the outlet end of the air guide pipe 2.
To the problem that prior art exists, this application provides a hot-blast furnace hot blast main at first, sets up guide duct 2, with the fire grate below of the leading-in hot-blast furnace of the wind that 1 work of air-blower produced. The air guide pipe 2 is provided with an air guide plate 3 at one end of an outlet below the fire grate, the pipe wall of the air guide pipe is provided with a through hole 4, part of air flow entering the air guide pipe 2 passes through the air guide plate 3 and flows out from one end of the outlet, the other part of air flow passes through the through hole 4, and due to the difference of the positions and the orientations of the air guide plate 3 and the through hole 4, the air flows flowing out from the two positions are also located at different positions below the fire grate, so that when the air flow passes through the fire grate, oxygen can be provided for fuels at different positions above the fire grate, thereby ensuring full.
Preferably, the air deflector 3 comprises a plurality of blades, and a gap is formed between the blades.
Preferably, the air deflector 3 is composed of an annular connector and fan blades respectively connected to the annular connector.
Preferably, the igniter is arranged in the air guide pipe 2, and the central through hole of the annular connecting piece is used for fixing the igniter.
Preferably, the air deflector 3 comprises a plurality of blades, and a gap formed between the blades is used for air flow to flow through, so that the air flow is guided. More preferably, the fan blades can be slightly inclined towards the advancing direction of the airflow, so that the flow guiding effect is further improved.
Preferably, the air guide plate 3 is provided with a ring-shaped connector at the center, and the periphery of the ring-shaped connector is connected with a plurality of fan blades respectively. The center of the annular connecting piece can also pass through the air flow; alternatively, when the igniter is disposed inside the air guide duct 2, the center of the annular connector is used to fix the igniter.
Preferably, the through holes 4 are distributed on the wall of the air guide pipe 2 facing the fire grate.
Preferably, the pipe wall of the air guide pipe 2 is provided with 3-10 rows of through holes 4, and each row comprises 3-10 through holes 4.
Preferably, the through holes 4 are distributed on the pipe wall of the air guide pipe 2 facing the fire grate to guide airflow to the fire grate and supply oxygen for fuel on the fire grate. The air guide pipe 2 can be in various shapes such as a cylinder shape, a rectangular parallelepiped shape or a polygonal column shape, and from the viewpoint of processing convenience, the air guide pipe 2 is preferably in a cylinder shape, and the through holes 4 are distributed on the arc-shaped pipe wall of the air guide pipe 2 facing the fire grate.
Preferably, the through holes 4 are arranged on the pipe wall of the air guide pipe 2 in rows and columns, the pipe wall of the air guide pipe 2 is provided with 3-10 rows of through holes 4, and each row comprises 3-10 through holes 4. For example, the duct wall of the air duct 2 is provided with 4 rows of through holes 4, and each row comprises 5 through holes 4.
Preferably, an exhaust duct 5 is further disposed at one end of the air guide duct 2 close to the blower 1, and the exhaust duct 5 is provided with a valve.
Preferably, the air guide pipe 2 is provided with an exhaust pipe 5, and the exhaust pipe 5 is provided with a valve for controlling the on-off of the exhaust pipe 5.
The hot blast stove comprises a combustion chamber, a feeding hole formed in the side wall of the combustion chamber, a fire grate arranged below the combustion chamber, an ash box arranged below the fire grate, and a hot blast stove air inlet device, wherein an outlet of the air guide pipe 2 is arranged in the ash box and is positioned below the fire grate.
Preferably, the outlet of the air guide pipe 2 is positioned below the center of the grate.
The application also provides a hot blast stove, and the hot blast stove air inlet device is used, and the outlet end of the air guide pipe 2 is arranged in the ash box and is positioned below the fire grate.
More preferably, the outlet of the air duct 2 is located below the center of the fire grate, so that the through hole 4 of the duct wall of the air duct 2 supplies air flow to a part of the fire grate, and the air flow flowing out of the air deflector 3 of the air duct 2 supplies air flow to another part of the fire grate.
Example 1
An air intake device of a hot blast stove comprises:
a blower 1;
the inlet of the air guide pipe 2 is communicated with the blower 1, and the outlet of the air guide pipe 2 is arranged below a fire grate of the hot blast stove;
an air guide plate 3 is arranged at one end of an outlet of the air guide pipe 2, the air guide plate 3 is composed of an annular connecting piece and fan blades respectively connected with the annular connecting piece, and gaps are formed among the fan blades. The igniter is arranged in the air guide pipe 2, and the central through hole of the annular connecting piece is used for fixing the igniter; and the pipe wall at one end of the outlet of the air guide pipe 2 is provided with a plurality of through holes 4, and the through holes 4 are distributed on the pipe wall of the air guide pipe 2 facing the fire grate. The pipe wall of the air guide pipe 2 is provided with 4 rows of through holes 4, and each row comprises 5 through holes 4;
an exhaust pipe 5 is further arranged at one end, close to the air blower 1, of the air guide pipe 2, and the exhaust pipe 5 is provided with a valve.
Example 2
The hot blast stove comprises a combustion chamber, a feeding hole formed in the side wall of the combustion chamber, a fire grate arranged below the combustion chamber, an ash box arranged below the fire grate, and a hot blast stove air inlet device in embodiment 1, wherein an outlet of an air guide pipe 2 is arranged in the ash box and is positioned below the center of the fire grate.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a hot-blast furnace hot blast blowpipe apparatus which characterized in that includes:
a blower (1);
the inlet of the air guide pipe (2) is communicated with the blower (1), and the outlet of the air guide pipe (2) is arranged below a fire grate of the hot blast stove;
an air guide plate (3) is arranged at one end of the outlet of the air guide pipe (2), and a plurality of through holes (4) are formed in the pipe wall of the outlet end of the air guide pipe (2).
2. The hot blast stove inlet device according to claim 1, characterized in that the air deflector (3) comprises a plurality of blades, and gaps are formed between the blades.
3. The hot blast stove inlet device according to claim 2, wherein the air deflector (3) is composed of an annular connector and fan blades respectively connected to the annular connector.
4. The hot blast stove inlet device according to claim 3, characterized in that an igniter is arranged in the air guide pipe (2), and the central through hole of the annular connecting piece is used for fixing the igniter.
5. A hot blast stove inlet device according to any one of claims 1-4, characterized in that the through holes (4) are distributed in the wall of the air duct (2) facing the grate.
6. The hot blast stove inlet device according to claim 5, characterized in that the duct wall of the air duct (2) is provided with 3-10 rows of through holes (4), each row comprising 3-10 through holes (4).
7. A hot blast stove inlet device according to any one of claims 1-4, characterized in that an exhaust duct (5) is further provided at an end of the air guide duct (2) close to the blower (1), and the exhaust duct (5) is provided with a valve.
8. A hot blast stove comprises a combustion chamber, a feeding hole arranged on the side wall of the combustion chamber, a fire grate arranged below the combustion chamber, and an ash box arranged below the fire grate, and is characterized in that the hot blast stove is further provided with a hot blast stove air inlet device according to any one of claims 1 to 6, and an outlet of an air guide pipe (2) is arranged in the ash box and is positioned below the fire grate.
9. The stove according to claim 8, wherein the outlet of the air duct (2) is located below the centre of the grate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332396.1A CN112484072B (en) | 2020-11-24 | 2020-11-24 | Hot-blast furnace hot blast heater and air inlet device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332396.1A CN112484072B (en) | 2020-11-24 | 2020-11-24 | Hot-blast furnace hot blast heater and air inlet device thereof |
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| Publication Number | Publication Date |
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| CN112484072A true CN112484072A (en) | 2021-03-12 |
| CN112484072B CN112484072B (en) | 2022-06-17 |
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| CN202011332396.1A Active CN112484072B (en) | 2020-11-24 | 2020-11-24 | Hot-blast furnace hot blast heater and air inlet device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413889A (en) * | 2020-11-24 | 2021-02-26 | 湖南省农友盛泰农业科技有限公司 | Hot-blast furnace ignition and hot-blast furnace |
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| CN112484072B (en) | 2022-06-17 |
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Denomination of invention: An air inlet device and a hot air stove Effective date of registration: 20230302 Granted publication date: 20220617 Pledgee: China Construction Bank Corporation Shuangfeng Sub-branch Pledgor: HUNAN NONGYOU MACHINERY GROUP Co.,Ltd.|HUNAN NONGYOU SHENGTAI AGRICULTURAL TECHNOLOGY CO.,LTD. Registration number: Y2023980033958 |
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