CN112413889B - Hot-blast furnace ignition and hot-blast furnace - Google Patents
Hot-blast furnace ignition and hot-blast furnace Download PDFInfo
- Publication number
- CN112413889B CN112413889B CN202011328857.8A CN202011328857A CN112413889B CN 112413889 B CN112413889 B CN 112413889B CN 202011328857 A CN202011328857 A CN 202011328857A CN 112413889 B CN112413889 B CN 112413889B
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- ignition
- hot blast
- blast stove
- box
- grate
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- 238000002485 combustion reaction Methods 0.000 claims description 20
- 239000002893 slag Substances 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F24H3/02—Air heaters with forced circulation
- F24H3/027—Air heaters with forced circulation using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q13/00—Igniters not otherwise provided for
-
- 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/189—Arrangement or mounting of combustion heating means, e.g. grates or burners 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
- F24H2230/00—Solid fuel fired boiler
- F24H2230/02—Solid and fluid fuel fired boilers
Abstract
The application discloses hot-blast furnace ignition, include: a movable grate (1); an igniter (2) arranged below the fire grate (1); the top opening of the ignition box (3) is fixedly connected with the fire grate (1), and the side wall of the ignition box (3) is in contact with the igniter (2). The application also provides a hot blast stove using the hot blast stove ignition device. The application provides a hot-blast furnace ignition and hot-blast furnace, some firearm ignition success rate is high, and the slag in the ignition box is easily cleared up simultaneously.
Description
Technical Field
The application relates to the technical field of combustion equipment, in particular to a hot blast stove ignition device and a 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 fuel inlet of the hot blast stove is usually arranged on the side wall of the hearth, so that the fuel entering the hearth is not uniformly distributed, and ignition of an igniter arranged in the wall of the hearth is easy to fail. Meanwhile, after the combustion furnace is finished, the igniter needs to be detached and cleaned, and the process is complicated.
Disclosure of Invention
In order to solve the above technical problems, a first object of the present invention is to provide an ignition device for a hot blast stove; the second purpose of the invention is to provide a hot blast stove using the ignition device of the hot blast stove; the application provides a hot-blast furnace ignition and hot-blast furnace, some firearm ignition success rate is high, and the slag in the ignition box is easily cleared up simultaneously.
The technical scheme provided by the invention is as follows:
a hot blast stove ignition device comprising:
a movable grate;
an igniter arranged below the fire grate;
the top opening of the ignition box is fixedly connected with the fire grate, and the side wall of the ignition box is in contact with the igniter.
Preferably, the bottom of the ignition box is provided with an opening, a bottom plate is fixedly arranged below the side of the igniter, and the bottom plate is matched with the opening at the bottom of the ignition box, so that when the fire grate moves to a working position, the bottom plate blocks the opening at the bottom of the ignition box.
Preferably, the ignition box is arranged in the center of the grate.
Preferably, the grate is arranged on a guide rail and moves back and forth along the guide rail.
A hot blast stove comprises a combustion chamber, an ash box arranged below the combustion chamber and an ignition device of the hot blast stove, wherein a fire grate is arranged between the combustion chamber and the ash box.
Preferably, still be equipped with hot-blast furnace hot blast main air inlet unit, hot-blast furnace hot blast main air inlet unit includes:
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;
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;
the igniter is arranged in the air guide pipe.
Preferably, the air deflector is composed of an annular connecting piece and fan blades respectively connected with the annular connecting piece, and a 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, 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.
This application at first provides a hot-blast furnace ignition, sets up the ignition box, with the open-top and the grate fixed connection of ignition box for there is the opening on the grate and is linked together with the ignition box, then in some entering ignition box through the open-top of ignition box in the fuel that falls on the grate, the lateral wall and the some firearm contact of ignition box simultaneously, then some firearm can ignite the fuel in the ignition box, improve the success rate of igniting.
The application also provides a hot blast stove using the hot blast stove ignition device. The fire grate is arranged between the combustion chamber and the ash box, and the igniter and the ignition box are both positioned in the ash box. After the ignition is finished, the ignition box can be cleaned while the ash box is cleaned, and the working efficiency is improved.
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 ignition device of a hot blast stove according to an embodiment of the present invention (ignition box is engaged with a base plate);
FIG. 2 is a schematic cross-sectional view of an ignition device of a hot blast stove according to an embodiment of the present invention (ignition box separated from the base plate);
FIG. 3 is a schematic top view of an ignition device of a hot blast stove according to an embodiment of the present invention (ignition box separated from the base plate);
FIG. 4 is a schematic enlarged partial view of an ignition device of a hot blast stove and an air intake device of the hot blast stove according to an embodiment of the present invention;
FIG. 5 is a schematic enlarged partial view of another angle of the ignition device of the hot blast stove and the air intake device of the hot blast stove according to the embodiment of the present invention;
reference numerals: 1-a fire grate; 2-an igniter; 3-ignition box; 4-a bottom plate; 51-a blower; 52-a wind guide pipe; 53-air deflectors; 54-a through hole; 55-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.
Referring to fig. 1 to 5, an embodiment of the present invention provides an ignition device for a hot blast stove, including:
a movable grate 1;
an igniter 2 arranged below the fire grate 1;
the top opening of the ignition box 3 is fixedly connected with the fire grate 1, and the side wall of the ignition box 3 is in contact with the igniter 2.
This application at first provides a hot-blast furnace ignition, sets up ignition box 3, with the open-top of ignition box 3 and grate 1 fixed connection for there is the opening on the grate 1 and ignites box 3 and be linked together, then in some in the fuel that falls on grate 1 enters ignition box 3 through the open-top of ignition box 3, simultaneously the lateral wall and the 2 contacts of some firearm of ignition box 3, then some firearm 2 can ignite the fuel in the ignition box 3, improve the success rate of igniting.
In addition, because the grate 1 can move, the ignition box 3 fixed on the grate 1 can move along with the grate, when the hot blast stove finishes working and needs to be cleaned, the grate 1 is moved outwards, so that slag accumulated in the ignition box 3 can be cleaned conveniently, and therefore when re-ignition is carried out, enough space is reserved in the ignition box 3 to contain fuel, and the success rate of ignition of the igniter 2 is guaranteed.
Preferably, the bottom of the ignition box 3 is open, a bottom plate 4 is fixedly arranged below the igniter 2, and the bottom plate 4 is matched with the bottom opening of the ignition box 3, so that when the fire grate 1 moves to a working position, the bottom plate 4 blocks the bottom opening of the ignition box 3.
Preferably, the ignition box 3 is arranged at the center of the fire grate 1.
In order to further improve the cleaning efficiency of the ignition box 3, the bottom of the ignition box 3 is preferably set to be an open opening, and the bottom plate 4 is fixedly arranged below the side of the ignition box 2, so that when the ignition box 3 moves to a working position along with a fire grate, the bottom plate 4 just blocks the opening at the bottom of the ignition box 3, at the moment, fuel can be accumulated in a space enclosed by the ignition box 3 and the bottom plate 4, and then the ignition box 2 contacted with the side wall of the ignition box 3 can be ignited successfully. When the hot blast stove is finished and needs to be cleaned, the fire grate 1 is moved, the ignition box 3 moves along with the fire grate, the bottom plate 4 does not close the opening at the bottom of the ignition box 3 at the moment, and slag in the ignition box 3 directly falls from the opening at the bottom, so that the labor intensity of workers is reduced.
Preferably, the ignition box 3 is arranged at the center of the fire grate 1. Since the fuel inlet openings are usually arranged in the side walls of the stove, the fuel entering from the inlet openings is not evenly distributed in the grate 1, but is distributed in a more or less two sides in the middle part. The ignition box 3 is arranged at the center of the fire grate 1, so that enough fuel entering the ignition box 3 can be ensured to facilitate the ignition of the igniter 2; in addition, after the fuel in the ignition box 3 is ignited, the area with the most fuel above the grate 1 is directly ignited, and the success rate of ignition can also be improved.
However, when the bottom plate 4 is arranged to be matched with the ignition box 3, the ignition box 3 is arranged at the center of the fire grate 1, and the bottom plate 4 is positioned below the central line of the fire grate 1 and is matched with the ignition box 3.
Preferably, the grate 1 is arranged on a guide rail and moves back and forth along the guide rail.
Preferably, the grate 1 is movable by arranging the grate 1 on rails. The fire grate 1 and the guide rail can slide mutually, so that the movement of the fire grate 1 is convenient, and meanwhile, the guide rail can also guide the movement of the fire grate 1.
A hot blast stove comprises a combustion chamber, an ash box arranged below the combustion chamber and an ignition device of the hot blast stove, wherein a fire grate 1 is arranged between the combustion chamber and the ash box.
The application also provides a hot blast stove using the hot blast stove ignition device. The fire grate 1 is arranged between the combustion chamber and the ash box, and the igniter 2 and the ignition box 3 are both positioned in the ash box. After the ignition is finished, the ignition box 3 can be cleaned while the ash box is cleaned, and the working efficiency is improved. Especially when the bottom plate 4 is arranged to match with the ignition box 3 with an opening at the bottom, the furnace grate 1 is moved to enable slag in the ignition box 3 to fall into an ash box and be cleaned together.
Preferably, still be equipped with hot-blast furnace hot blast main air inlet unit, hot-blast furnace hot blast main air inlet unit includes:
a blower 51,
The inlet of the air guide pipe 52 is communicated with the blower 51, and the outlet of the air guide pipe 52 is arranged below a fire grate of the hot blast stove;
an air guide plate 53 is arranged at one end of the outlet of the air guide pipe 52, and a plurality of through holes 54 are formed in the pipe wall at one end of the outlet of the air guide pipe 52;
the igniter 2 is disposed in the air guide duct 52.
Preferably, the air deflector 53 is composed of a ring-shaped connector and fan blades respectively connected to the ring-shaped connector, and a central through hole of the ring-shaped connector is used for fixing the igniter 2.
Preferably, the through holes 54 are distributed on the wall of the air duct 52 facing the grate.
Preferably, an exhaust duct 55 is further disposed at one end of the air duct 52 close to the blower 51, and the exhaust duct 55 is provided with a valve.
Preferably, the hot blast stove that this application provided still is equipped with hot blast stove hot-blast furnace hot blast blowpipe apparatus, for providing sufficient oxygen in the hot blast stove, improves ignition success rate and combustion efficiency. By providing the air guide duct 52, air generated by the operation of the blower 51 is guided to the lower side of the grate of the hot blast stove. The air guide pipe 52 is provided with an air guide plate 53 at one end of an outlet below the fire grate, the pipe wall of the air guide pipe is provided with a through hole 54, part of air flow entering the air guide pipe 52 passes through the air guide plate 53 and flows out from one end of the outlet, the other part of air flow passes through the through hole 54, and because the positions and the orientations of the air guide plate 53 and the through hole 54 are different, the air flows flowing out from the two positions are also positioned at different positions below the fire grate, so that when the air flow passes through the fire grate, oxygen can be provided for fuel at different positions above the fire grate, thereby ensuring full combustion of the fuel and improving the working efficiency of the hot blast stove.
Preferably, the air guide plate 53 is a structure in which an annular connector is disposed at the center, and a plurality of blades are respectively connected to the outer periphery of the annular connector, the center of the annular connector is used for fixing the igniter, and the gap between the blades can allow the airflow to flow. When the bottom plate 4 is matched with the ignition box 3 with an opening at the bottom, the bottom plate 4 is close to the opening of the air guide pipe 52 or is positioned in the air guide pipe 52, and the bottom plate 4 is a flat plate and is parallel to the airflow direction, so that the airflow in the air guide pipe 52 can bypass the bottom plate 4 and the ignition box 3 and is supplied to the fire grate 1, and the airflow flowing out from the through hole 54 is matched, so that the airflow flows through all the places of the fire grate 1, and oxygen is supplied, and the fuel is combusted more fully.
Preferably, the through holes 54 are distributed on the wall of the air duct 52 facing the grate to guide the air flow to the grate and supply oxygen to the fuel on the grate. The duct 52 may be in various shapes such as a cylinder, a rectangular parallelepiped, or a polygonal cylinder, and it is preferable that the duct 52 is in a cylinder shape in view of convenience of processing, and the through holes 54 are distributed on the arc-shaped wall of the duct 52 facing the grate.
Preferably, the through holes 54 are arranged in rows and columns on the wall of the air guide duct 52, and the wall of the air guide duct 52 is provided with 3-10 rows of through holes 54, and each row comprises 3-10 through holes 54. For example, the duct 2 has 4 rows of through holes 54, and each row includes 5 through holes 54.
Preferably, the air duct 52 is provided with an exhaust duct 55, and the exhaust duct 55 is provided with a valve for controlling the on/off of the exhaust duct 55.
Example 1
A hot blast stove ignition device comprising:
a movable grate 1;
an igniter 2 arranged below the fire grate 1;
the top opening of the ignition box 3 is fixedly connected with the fire grate 1, and the side wall of the ignition box 3 is in contact with the igniter 2; the bottom of the ignition box 3 is provided with an opening, a bottom plate 4 is fixedly arranged below the igniter 2, and the bottom plate 4 is matched with the opening at the bottom of the ignition box 3, so that when the fire grate 1 moves to a working position, the bottom plate 4 blocks the opening at the bottom of the ignition box 3;
the ignition box 3 is arranged in the center of the fire grate 1.
Example 2
An ignition device of a hot blast stove is the same as the embodiment 1, except that a fire grate 1 is arranged on a guide rail and moves back and forth along the guide rail.
Example 3
The hot blast stove comprises a combustion chamber, an ash box arranged below the combustion chamber and the ignition device of the hot blast stove in embodiment 1, wherein a fire grate 1 is arranged between the combustion chamber and the ash box.
Still be equipped with hot-blast furnace hot blast blowpipe apparatus, hot-blast furnace hot blast blowpipe apparatus includes:
a blower 51,
The inlet of the air guide pipe 52 is communicated with the blower 51, and the outlet of the air guide pipe 52 is arranged below a fire grate of the hot blast stove;
an air guide plate 53 is arranged at one end of an outlet of the air guide pipe 52, the air guide plate 53 is composed of an annular connecting piece and fan blades respectively connected with the annular connecting piece, and a central through hole of the annular connecting piece is used for fixing the igniter 2; the pipe wall at one end of the outlet of the air guide pipe 52 is provided with a plurality of through holes 54; the through holes 54 are distributed on the pipe wall of the air guide pipe 52 facing the fire grate;
the igniter 2 is arranged in the air guide pipe 52;
an exhaust duct 55 is further arranged at one end, close to the blower 51, of the air guide duct 52, and the exhaust duct 55 is provided with a valve.
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 (8)
1. A hot blast stove ignition device, comprising:
a movable grate (1);
an igniter (2) arranged below the fire grate (1);
the top opening of the ignition box (3) is fixedly connected with the fire grate (1), and the side wall of the ignition box (3) is contacted with the igniter (2);
the bottom opening of the ignition box (3), a bottom plate (4) is fixedly arranged below the side of the igniter (2), the bottom plate (4) is matched with the bottom opening of the ignition box (3), so that when the fire grate (1) moves to a working position, the bottom plate (4) blocks the bottom opening of the ignition box (3).
2. A hot blast stove ignition device according to claim 1, characterized in that the ignition box (3) is arranged in the centre of the grate (1).
3. A hot blast stove ignition device according to claim 1, characterized in that the grate (1) is arranged on a guide rail and moves back and forth along the guide rail.
4. A hot blast stove comprising a combustion chamber, an ash box arranged below the combustion chamber, characterized in that it is further provided with an ignition device of the hot blast stove according to any one of claims 1-3, and the grate (1) is arranged between the combustion chamber and the ash box.
5. The hot blast stove according to claim 4, further comprising a hot blast stove inlet device, the hot blast stove inlet device comprising:
a blower (51),
The inlet of the air guide pipe (52) is communicated with the blower (51), and the outlet of the air guide pipe (52) is arranged below a fire grate of the hot blast stove;
an air guide plate (53) is arranged at one end of the outlet of the air guide pipe (52), and a plurality of through holes (54) are formed in the pipe wall at one end of the outlet of the air guide pipe (52);
the igniter (2) is arranged in the air guide pipe (52).
6. The hot blast stove according to claim 5, wherein the air deflector (53) consists of a ring-shaped connector, the central through hole of which is used for fixing the igniter (2), and blades respectively connected to the ring-shaped connector.
7. The stove according to claim 5, wherein the through holes (54) are distributed in the wall of the duct (52) facing the grate.
8. The hot blast stove according to claim 5, wherein an exhaust duct (55) is further provided at an end of the air guiding duct (52) close to the blower (51), and the exhaust duct (55) is provided with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011328857.8A CN112413889B (en) | 2020-11-24 | 2020-11-24 | Hot-blast furnace ignition and hot-blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011328857.8A CN112413889B (en) | 2020-11-24 | 2020-11-24 | Hot-blast furnace ignition and hot-blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112413889A CN112413889A (en) | 2021-02-26 |
| CN112413889B true CN112413889B (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011328857.8A Active CN112413889B (en) | 2020-11-24 | 2020-11-24 | Hot-blast furnace ignition and hot-blast furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN112413889B (en) |
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| Publication number | Publication date |
|---|---|
| CN112413889A (en) | 2021-02-26 |
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Application publication date: 20210226 Assignee: HUNAN NONGYOU MACHINERY GROUP Co.,Ltd. Assignor: HUNAN NONGYOU SHENGTAI AGRICULTURAL TECHNOLOGY CO.,LTD. Contract record no.: X2023980047535 Denomination of invention: A hot air stove ignition device and a hot air stove Granted publication date: 20220422 License type: Exclusive License Record date: 20231122 |