CN208253631U - A kind of hot-blast stove - Google Patents
A kind of hot-blast stove Download PDFInfo
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- CN208253631U CN208253631U CN201820857756.1U CN201820857756U CN208253631U CN 208253631 U CN208253631 U CN 208253631U CN 201820857756 U CN201820857756 U CN 201820857756U CN 208253631 U CN208253631 U CN 208253631U
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- vertical
- combustion furnace
- conditioning oven
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- flue gas
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Abstract
The utility model provides a kind of hot-blast stove, belongs to hot-blast stove technical field.The hot-blast stove includes vertical cyclone combustion furnace and vertical conditioning oven.Vertical cyclone combustion furnace and vertical conditioning oven are arranged side by side, and the side of the bottom of vertical cyclone combustion furnace is equipped with the transition flue duct for being connected to the side of the bottom of vertical conditioning oven.The hot-blast stove can suitably reduce the temperature from smoke outlet flue gas, so that flue gas exit temperature is reached 900-1000 DEG C of requirement, to meet actual demand by the way that boiler tube is arranged at an upper portion thereof.
Description
Technical field
The utility model relates to hot-blast stove technical fields, and in particular to a kind of hot-blast stove.
Background technique
Circulating fluidized bed boiler is a relatively high technology of the coal-fired thermal efficiency generally acknowledged at present, the granularity requirement to coal
It is less than 10 millimeters of particulate coal, combustion temperature in hearth is controlled at 900-1000 DEG C, it is therefore an objective to the generation of nitrogen oxides is reduced,
Since ignition temperature is lower than coal fusion point of ash, the not generation of slag, coal ash isolates the coal of bulky grain through cyclone separator
Ash, this coal ash are again introduced into circulating fluidized bed combustion, and thinner coal ash passes through high-temperature steam section, Low Temperature Steam section, province with flue gas
300 DEG C are cooled to after coal device hereinafter, being exhausted into atmosphere, the collection of dust is quite reasonable by the further dedusting of deduster.
But after our the existing more upgradings from coal, the upgrading coal dust filtered out by deduster, granularity is mostly in 0.2-0.05 millimeter
Between, it needs nearby to use this coal dust, so, fluidized bed is to foreclose.
Vertical cyclone furnace uses rough coal powder, fuel and First air and is sent into from the blade type burner at the top of cyclone cylinder, secondary
Wind is then tangentially sent into the speed of 55-100 meter per second.Vertical cyclone furnace is wider than horizontal cyclone furnace to the adaptation range of coal, required
Wind speed and wind pressure it is relatively low, but it is strong not as good as horizontal to burn.Ignition temperature is high in cyclone furnace, can be 1500 DEG C -1600 DEG C big,
The polluter NO of formationxEqual size is also higher, therefore cyclone furnace has seldom been applied in the boiler, directly by so high flue gas
Temperature is directly quoted also undesirable.In addition, temperature is too low certainly, vertical if used by the flue gas that cyclone boiler comes out
Cyclone furnace has been covered with boiler tubing above secondary furnace, and flue gas exit temperature has been much smaller than 900-1000 DEG C, and we need
Be that 900-1000 DEG C of flue gas is passed through a kind of pyrolysis plant, it is clear that circulating fluidized bed combustion temperature is not inconsistent compared with requiring
It closes and requires.
How high combustion efficiency can be accomplished not only using the coal dust after dedusting as raw material but also to exiting flue gas
The requirement of temperature, the hot-blast furnace equipment that also requirement guarantee complete equipment system steadily operated and met environmental requirement, which becomes, compels to be essential
It wants.
Utility model content
One of the purpose of this utility model includes providing a kind of hot-blast stove, and the hot-blast stove by being arranged boiler at an upper portion thereof
Pipe, can suitably reduce the temperature from smoke outlet flue gas, so that flue gas exit temperature is reached 900-1000 DEG C of requirement, to meet reality
Border demand.
The utility model solves its technical problem using including following technical scheme to realize:
The utility model embodiment proposes a kind of hot-blast stove comprising vertical cyclone combustion furnace and vertical conditioning oven.
Vertical cyclone combustion furnace and vertical conditioning oven are arranged side by side, and the side of the bottom of vertical cyclone combustion furnace, which is equipped with, to be used for
The transition flue duct being connected to the side of the bottom of vertical conditioning oven.
The boiler tubing that the top of vertical conditioning oven is equipped with for reducing flue gas exit temperature.
Further, in the utility model preferred embodiment, boiler tubing along vertical conditioning oven axial setting and by
The top of vertical conditioning oven extends to bottom.
Further, in the utility model preferred embodiment, vertical conditioning oven is additionally provided with exhanst gas outlet, and exhanst gas outlet is set
It is placed in the side wall of vertical conditioning oven and is located at the one end at the top close to vertical conditioning oven of boiler tubing.
Further, in the utility model preferred embodiment, the bottom of vertical conditioning oven is equipped with after-flame burner hearth, transition cigarette
Road is connected to after-flame burner hearth, and the side wall opposite with transition flue duct of after-flame burner hearth is equipped with flue gas baffling angle.
Further, in the utility model preferred embodiment, flue gas baffling angle is from the bore wall of after-flame burner hearth to transition cigarette
Road protrusion.
Further, in the utility model preferred embodiment, flue gas baffling angle is acute angle.
Further, in the utility model preferred embodiment, the bottom of vertical conditioning oven is additionally provided with to be free of for blowing into
The air inlet three times of the tertiary air of coal dust and three times air inlet are located at the one of the bottom close to vertical conditioning oven at flue gas baffling angle
Side.
Further, in the utility model preferred embodiment, vertical cyclone combustion furnace burns including the first vertical cyclone
Furnace and the second vertical cyclone combustion furnace, the first vertical cyclone combustion furnace and the second vertical cyclone combustion furnace are with the axis of vertical conditioning oven
It is symmetrically arranged to for symmetry axis in the two sides of vertical conditioning oven, the side of the bottom of the first vertical cyclone combustion furnace is equipped with the
The side of one transition flue duct, the bottom of the second vertical cyclone combustion furnace is equipped with the second transition flue duct, First Transition flue and second
Transition flue duct is connected to the side of the bottom of vertical conditioning oven.
Further, in the utility model preferred embodiment, after-flame burner hearth be symmetrically arranged with the first flue gas baffling angle with
Second flue gas baffling angle, the first flue gas baffling angle are protruded from the bore wall of after-flame burner hearth to First Transition flue, the second flue gas baffling
Angle is protruded from the bore wall of after-flame burner hearth to the second transition flue duct, and at the dog-ear at the first flue gas baffling angle and the second flue gas baffling angle
Dog-ear at have gap.
Further, in the utility model preferred embodiment, vertical cyclone combustion furnace further includes cylinder, vane cyclone type
Burner, swirl flow air port and cinder notch.
Vane cyclone type burner is set to the top of cylinder, and swirl flow air port is set to the close vane cyclone of cylinder
One end of type burner, cinder notch are set to the bottom of cylinder.
The beneficial effect of hot-blast stove includes: in the utility model embodiment
Hot-blast stove provided by the present embodiment can be reduced suitably by the way that boiler tube is arranged at an upper portion thereof from smoke outlet cigarette
The temperature of gas makes flue gas exit temperature reach 900-1000 DEG C of requirement, to meet actual demand.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the hot-blast stove with 1 vertical cyclone combustion furnace provided by the embodiment of the utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at II；
Fig. 3 is the structural schematic diagram of the hot-blast stove with 2 vertical cyclone combustion furnaces provided by the embodiment of the utility model.
Icon: 1- vertical cyclone combustion furnace；101- the first vertical cyclone combustion furnace；102- the second vertical cyclone combustion furnace；
11- cylinder；12- vane cyclone type burner；13- swirl flow air port；14- cinder notch；15- transition flue duct；151- First Transition
Flue；The second transition flue duct of 152-；The vertical conditioning oven of 2-；21- after-flame burner hearth；22- boiler tubing；23- flue gas baffling angle；231-
First dog-ear wall；232- the second dog-ear wall；233- the first flue gas baffling angle；234- the second flue gas baffling angle；24- is entered the wind three times
Mouthful；25- exhanst gas outlet.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
In the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower", "inner", "outside"
Or positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In addition, the terms such as term " vertical " are not offered as requiring component absolute upright, but can be slightly tilted.As " hung down
Directly " only refer to that its direction is more vertical with respect to for "horizontal", be not indicate the structure have to it is completely vertical, but can
To be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
It is specifically described with reference to embodiments.
Embodiment
The utility model embodiment provides a kind of hot-blast stove, and referring to Fig.1 with Fig. 2, which includes vertical cyclone burning
Furnace 1 and vertical conditioning oven 2.
Vertical cyclone combustion furnace 1 and vertical conditioning oven 2 are arranged side by side, and the side of the bottom of vertical cyclone combustion furnace 1 is equipped with
Transition flue duct 15 for being connected to the side of the bottom of vertical conditioning oven 2.
Vertical cyclone combustion furnace 1 further includes cylinder 11, vane cyclone type burner 12, swirl flow air port 13 and cinder notch
14。
Vane cyclone type burner 12 is set to the top of cylinder 11, and swirl flow air port 13 is set to the close of cylinder 11
One end of vane cyclone type burner 12, cinder notch 14 are set to the bottom of cylinder 11.
The boiler tubing 22 that the top of vertical conditioning oven 2 is equipped with for reducing 25 temperature of exhanst gas outlet.It can refer to ground, boiler
Pipeline 22 can be arranged along the axial direction of vertical conditioning oven 2 and be extended from the top of vertical conditioning oven 2 to bottom.Preferably, extending length
Degree is unsuitable too long, and otherwise cost greatly increases.Optionally, above-mentioned boiler tubing 22 can be U-typed pipeline.
Vertical conditioning oven 2 is additionally provided with exhanst gas outlet 25, and exhanst gas outlet 25 is set to the side wall of vertical conditioning oven 2 and is located at pot
The one end at the top close to vertical conditioning oven 2 in boiler tube road 22.Namely the length of boiler tubing 22 is greater than exhanst gas outlet 25 along vertical
The axial length of formula conditioning oven 2.
By above-mentioned setting, the flue gas in vertical conditioning oven 2 is after the cooling effect of boiler tubing 22 again from exhanst gas outlet
25 discharges, to effectively reduce the temperature from flue gas from exhanst gas outlet 25, make 25 temperature of exhanst gas outlet reach 900-1000 DEG C
It is required that meet actual demand.
The bottom of vertical conditioning oven 2 is equipped with after-flame burner hearth 21, and transition flue duct 15 is connected to after-flame burner hearth 21, after-flame burner hearth 21
The side wall opposite with transition flue duct 15 be equipped with flue gas baffling angle 23.By the way that baffling angle is arranged, can improve in vertical conditioning oven 2
Mobility status mitigates 21 furnace bottom dead angle of after-flame burner hearth and flows the slag phenomenon in dead area；In addition, also advantageously improving after-flame
The temperature of burner hearth 21 improves after-flame degree.
Specifically, flue gas baffling angle 23 is protruded from the bore wall of after-flame burner hearth 21 to transition flue duct 15.Preferably, flue gas baffling
Angle 23 is acute angle.It should be understood that the flue gas baffling angle 23 is formed by the first dog-ear wall 231 and the second dog-ear wall 232, the first folding
Angle between angle wall 231 and the second dog-ear wall 232 is acute angle.More preferably, the vertex at flue gas baffling angle 23 is fillet.
Further, the bottom of vertical conditioning oven 2 is additionally provided with the air inlet three times for blowing into the tertiary air for being free of coal dust
24 and three times air inlet 24 be located at flue gas baffling angle 23 close to vertical conditioning oven 2 bottom side namely flue gas baffling angle
23 are located at the top (non-surface) of air inlet 24 three times.By the way that air inlet 24 three times are arranged, coal dust can be reduced in vertical cyclone
The air inlet coefficient of combustion furnace 1 is in the burning of vertical cyclone combustion furnace 1 in reducing atmosphere, generates nitrogen oxidation less as far as possible
Object NOx, improve environmentally friendly friendly.
In addition, the quantity of vertical cyclone combustion furnace 1 other than it can be 1, can also be 2 (referring to figure 3.).?
I.e. vertical cyclone combustion furnace 1 includes the first vertical cyclone combustion furnace 101 and the second vertical cyclone combustion furnace 102.First vertical rotation
Wind combustion furnace 101 and the second vertical cyclone combustion furnace 102 are symmetrically arranged by symmetry axis of the axial direction of vertical conditioning oven 2 in vertical
The two sides of formula conditioning oven 2.
Accordingly, the side of the bottom of the first vertical cyclone combustion furnace 101 is equipped with First Transition flue 151, and second is vertical
The side of the bottom of cyclone-combustion stove 102 is equipped with the second transition flue duct 152, First Transition flue 151 and the second transition flue duct 152
It is connected to the side of the bottom of vertical conditioning oven 2
In conjunction with above scheme, after-flame burner hearth 21 is symmetrically arranged with the first flue gas baffling angle 233 and the second flue gas baffling angle
234.First flue gas baffling angle 233 is protruded from the bore wall of after-flame burner hearth 21 to First Transition flue 151, the second flue gas baffling angle
234 are protruded from the bore wall of after-flame burner hearth 21 to the second transition flue duct 152, and with second at the dog-ear at the first flue gas baffling angle 233
There is gap at the dog-ear at flue gas baffling angle 234.
By being symmetrical arranged 2 vertical cyclone combustion furnaces 1 and corresponding 2 flue gases foldings of side wall setting in vertical conditioning oven 2
Angle 23 is flowed, can be conducive to increase coal dust supply, increase total pre- heat, without the cost of equipment that is multiplied, meanwhile, it saves
Occupied area.
To sum up, hot-blast stove provided by the utility model embodiment can be reduced suitably by the way that boiler tube is arranged at an upper portion thereof
From the temperature of flue gas from exhanst gas outlet 25,25 temperature of exhanst gas outlet is set to reach 900-1000 DEG C of requirement, to meet actual demand.It is logical
Setting baffling angle is crossed, the mobility status in vertical conditioning oven 2 can be improved, mitigates 21 furnace bottom dead angle of after-flame burner hearth and flowing dead area
Interior slag phenomenon；In addition, also advantageously improving the temperature of after-flame burner hearth 21, after-flame degree is improved.By the way that air inlet three times is arranged
24, coal dust can be reduced in the air inlet coefficient of vertical cyclone combustion furnace 1, the burning of vertical cyclone combustion furnace 1 is made to be in reproducibility gas
In atmosphere, nitrogen oxides NO is generated less as far as possiblex, improve environmentally friendly friendly.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of hot-blast stove, which is characterized in that including vertical cyclone combustion furnace and vertical conditioning oven；
The vertical cyclone combustion furnace and the vertical conditioning oven are arranged side by side, the side of the bottom of the vertical cyclone combustion furnace
Equipped with the transition flue duct for being connected to the side of the bottom of the vertical conditioning oven；
The boiler tubing that the top of the vertical conditioning oven is equipped with for reducing flue gas exit temperature.
2. hot-blast stove according to claim 1, which is characterized in that axial direction of the boiler tubing along the vertical conditioning oven
It is arranged and is extended from the top of the vertical conditioning oven to bottom.
3. hot-blast stove according to claim 1, which is characterized in that the vertical conditioning oven is additionally provided with exhanst gas outlet, described
Exhanst gas outlet is set to the side wall of the vertical conditioning oven and is located at the top close to the vertical conditioning oven of the boiler tubing
The one end in portion.
4. hot-blast stove according to claim 1, which is characterized in that the bottom of the vertical conditioning oven is equipped with after-flame burner hearth,
The transition flue duct is connected to the after-flame burner hearth, and the side wall opposite with the transition flue duct of the after-flame burner hearth is equipped with flue gas
Baffling angle.
5. hot-blast stove according to claim 4, which is characterized in that flue gas baffling angle by the after-flame burner hearth bore wall
It is protruded to the transition flue duct.
6. hot-blast stove according to claim 5, which is characterized in that flue gas baffling angle is acute angle.
7. hot-blast stove according to claim 4, which is characterized in that the bottom of the vertical conditioning oven is additionally provided with for blowing into
The air inlet three times of tertiary air without coal dust and the air inlet three times are located at the close described vertical of flue gas baffling angle
The side of the bottom of conditioning oven.
8. hot-blast stove according to claim 4, which is characterized in that the vertical cyclone combustion furnace includes the first vertical cyclone
Combustion furnace and the second vertical cyclone combustion furnace, the first vertical cyclone combustion furnace and the second vertical cyclone combustion furnace are with institute
The axial direction for stating vertical conditioning oven is that symmetry axis is symmetrically arranged in the two sides of the vertical conditioning oven, first vertical cyclone
The side of the bottom of combustion furnace is equipped with First Transition flue, and the side of the bottom of the second vertical cyclone combustion furnace is equipped with second
Transition flue duct, the First Transition flue and second transition flue duct connect with the side of the bottom of the vertical conditioning oven
It is logical.
9. hot-blast stove according to claim 8, which is characterized in that the after-flame burner hearth is symmetrically arranged with the first flue gas baffling
Angle and the second flue gas baffling angle, the first flue gas baffling angle are convex from the bore wall of the after-flame burner hearth to the First Transition flue
Out, the second flue gas baffling angle is protruded from the bore wall of the after-flame burner hearth to second transition flue duct, and first cigarette
There is gap at the dog-ear at gas baffling angle and at the dog-ear at the second flue gas baffling angle.
10. hot-blast stove according to claim 1, which is characterized in that the vertical cyclone combustion furnace further includes cylinder, blade
Swirling type burner, swirl flow air port and cinder notch；
The vane cyclone type burner is set to the top of the cylinder, and the swirl flow air port is set to the cylinder
Close to one end of the vane cyclone type burner, the cinder notch is set to the bottom of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820857756.1U CN208253631U (en) | 2018-06-04 | 2018-06-04 | A kind of hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820857756.1U CN208253631U (en) | 2018-06-04 | 2018-06-04 | A kind of hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208253631U true CN208253631U (en) | 2018-12-18 |
Family
ID=64653479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820857756.1U Active CN208253631U (en) | 2018-06-04 | 2018-06-04 | A kind of hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208253631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011861A1 (en) * | 2020-07-15 | 2022-01-20 | 中国华能集团清洁能源技术研究院有限公司 | Apparatus for improving flue gas uniformity of flow field of large-angle bend of boiler |
-
2018
- 2018-06-04 CN CN201820857756.1U patent/CN208253631U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011861A1 (en) * | 2020-07-15 | 2022-01-20 | 中国华能集团清洁能源技术研究院有限公司 | Apparatus for improving flue gas uniformity of flow field of large-angle bend of boiler |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220630 Address after: 474571 industrial cluster of hongshiqiao village, HUICHE Town, Xixia County, Nanyang City, Henan Province Patentee after: HENAN LONGCHENG COAL HIGH EFFICIENCY TECHNOLOGY APPLICATION Co.,Ltd. Patentee after: Hebei Longcheng coal comprehensive utilization Co., Ltd Address before: 473000 industrial cluster area, hongshiqiao village, HUICHE Town, Xixia County, Nanyang City, Henan Province Patentee before: HENAN LONGCHENG COAL HIGH EFFICIENCY TECHNOLOGY APPLICATION Co.,Ltd. Patentee before: Shaanxi Longcheng coal clean and efficient utilization Co., Ltd |
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| TR01 | Transfer of patent right |