CN101880742A - Hot blast stove - Google Patents
Hot blast stove Download PDFInfo
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- CN101880742A CN101880742A CN2010102058579A CN201010205857A CN101880742A CN 101880742 A CN101880742 A CN 101880742A CN 2010102058579 A CN2010102058579 A CN 2010102058579A CN 201010205857 A CN201010205857 A CN 201010205857A CN 101880742 A CN101880742 A CN 101880742A
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- waste gas
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Abstract
The invention provides a hot blast stove. The adopted technical scheme is that: the hot blast stove is provided with two or more fresh air blast chambers and one or more waste gas blast chambers to surround the outer wall of a combustion chamber, wherein adjacent fresh air blast chambers are communicated with each other through a plurality of passages; and adjacent waste gas blast chambers are communicated with each other through a plurality of passages. The hot blast stove of the technical scheme has the advantages of simple structure, easy processing, convenient use, high heat efficiency and the capability of providing different products according to different application places and different processing conditions.
Description
Affiliated technical field
The present invention relates to a kind of hotblast stove, particularly use the hotblast stove of fuel indirect heating air.
Background technology
The technical scheme of existing hotblast stove has shell and tube, telescopic, tubulation and sleeve combination or spiral etc.
The shell and tube hotblast stove life-span is low; Common telescopic hotblast stove efficient is low; Spiral hotblast stove processing is complicated unusually.The combustion chamber that has is independent of heat exchange structure, need add heat-proof device; The waste gas that has is directly discharged body of heater, and heat utilization efficiency is lower.Shortcomings such as no matter which kind of mode, prior art ubiquity complex structure, processing technology require high, and the dust stratification problem is difficult to resolve determines, and efficient is not high, and adaptability is low.
For overcoming above-mentioned shortcoming, the invention provides a kind of hotblast stove, it is simple in structure, and is easy to manufacture, easy to use, and energy consumption is low, efficient height, adaptability height.
Summary of the invention
The technical solution used in the present invention is, this hotblast stove comprises combustion air inlet (60), fuel inlet, combustion chamber (1), wind chamber, cold air inlet (20), hot-blast outlet (21), waste gas outlet (31), it is characterized in that,
Described wind chamber comprises new wind wind chamber, waste gas wind chamber; New wind wind path and waste gas wind path are arranged in the described hotblast stove;
Two or more several new wind wind chamber and cold air inlet (20), hot-blast outlet (21) form described new wind wind path, adjacent several channel connections of described new wind wind chamber;
One or more several waste gas wind chambeies and exhaust gas entrance (30), waste gas outlet (31) are formed described waste gas wind path, adjacent several channel connections of waste gas wind chamber, described exhaust gas entrance (30) are communicated with the combustion chamber (1) and the waste gas wind chamber (32) of close combustion chamber;
The wind chamber (22) of close combustion chamber is in outer wall of combustion chamber (4) and is enclosed between the dividing plate (5) in the outside, combustion chamber and on the base plate (6), all the other described wind chambeies be between two dividing plates and base plate (6) on.
The described hotblast stove wind chamber (22) of close combustion chamber is new wind wind chamber with the wind chamber (23) away from the combustion chamber; The wind chamber (22) of close combustion chamber and one or more waste gas wind chamber is set, one or more new wind wind chambeies are set or new wind wind chamber is not set between the wind chamber (23) away from the combustion chamber.
Field of employment according to different process for processing conditioned disjunction hotblast stoves, described outer wall of combustion chamber (7) is that sphere, semisphere or wall are sphere or conical as cylindrical, top, and it is sphere or taper shape or flat-top or arbitrary surface as cylinder-shaped top that the outboard partition of encirclement combustion chamber (1) should be sphere, semisphere or wall mutually; Or described outer wall of combustion chamber (7) is the Polygons cylinder, or outer wall of combustion chamber (7) wall is corresponding polygon vertebra shape or flat-top as polygon cylindricality, top, it is polygon cylindricality that the described dividing plate of encirclement combustion chamber (1) should be the bottom mutually, and the top is corresponding polygon taper, or is flat-top.
Be the further heat exchanger effectiveness that improves, described hotblast stove, described outer wall of combustion chamber and/or dividing plate arranged outside have heat abstractor (8).Described heat abstractor (8) can be vertically, laterally or conducting strip, the heat pipe of other angular distribution.
Improve the another kind of measure of heat exchange efficiency, axially be vertical spiral dividing plate in described wind chamber, being provided with.
Remove dust stratification, several ash discharging gears are established in setting, described ash discharging gear is arranged at the bottom in waste gas wind chamber, form by base plate (6), ash discharge pipeline (61), ash-removing door (62), base plate is provided with an opening and connects the ash discharge pipeline, ash discharge pipeline below is provided with ash-removing door, and the opening of the base plate of each ash discharging gear is positioned at the extreme lower position of base plate, and the base plate of opening both sides raises gradually.
During more than one, can make two or more waste gas wind chamber the common base plate be arranged, shared ash discharging gear in waste gas wind chamber.
In order to reduce the intravital dust stratification of stove, can filtering net be set in described exhaust gas entrance (30).
The invention has the beneficial effects as follows that adopt the hotblast stove of this programme, it is simple in structure, primary structure is combustion chamber and the dividing plate that surrounds the combustion chamber; Easy to use, can adopt shapes such as right cylinder, square or Polygons cylinder, adaptability height according to the situation in process for processing condition and place; Because the new wind of outer wall of combustion chamber direct heating of fuel combustion post-heating, and waste gas after burning is not outside the direct discharge body of heater, but several times are so that the new wind of preheating in the return air chamber of turning back, so efficient is very high, and energy consumption is very low; Under the situation that adds heat abstractor or spiral dividing plate, adopt the efficient of the hotblast stove of this programme that acquisition is significantly improved; Ash discharging gear rational in infrastructure will make the hotblast stove of this programme can keep good work status for a long time.
Description of drawings
Fig. 1 is a basic structure synoptic diagram of the present invention.
Fig. 2 is provided with the synoptic diagram of scatterer for the present invention.
Fig. 3 is provided with the synoptic diagram of ash discharging gear for the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, outer wall of combustion chamber (7) is set on base plate (6), then sheathed layer by layer successively dividing plate outside outer wall of combustion chamber (7).Present embodiment is provided with five layers of dividing plate, five wind chambeies.Describe for convenient, the order of direction is from inside to outside pressed from the combustion chamber in five wind chambeies, is respectively first, second so that the tendencies chamber.The first, the 3rd, the tendencies chamber is new wind wind chamber, the second, the 4th wind chamber is waste gas wind chamber.Described dividing plate is a thermally conductive material, can be general steel plate or stainless steel plate.Angle from heat exchanger effectiveness, outermost one deck dividing plate is that the body of heater shell can use lagging material, but consider actual service condition, the tendencies cavity temperature is not high, the thermosteresis of not using lagging material to cause is not obvious, the thermally conductive material identical can be directly used, also common lagging material can be outside body of heater, covered where necessary with the internal layer dividing plate.
Shown in Fig. 1 fine line arrow, new wind at the route of new wind wind path is: enter tendencies chamber (23) from cold air inlet (20), enter the 3rd wind chamber (27) through passage (24), enter the first wind chamber (22) through passage (26) again, pass through passage (25) at last and arrive hot-blast outlet (21), finish new wind at the intravital stroke of stove.Hot-blast outlet can be provided with vacuum fan.The passage in two new wind wind of described connection chamber can be provided with one or more.
Fuel inlet is provided with routinely, can be arranged at the body of heater bottom.It is combustion-supporting that combustion air enters the combustion chamber from combustion air inlet (60), and all burnt produces high-temp waste gas.
Shown in Fig. 1 meander line arrow, waste gas at the route of waste gas wind path is: (1) enters the second wind chamber (32) through exhaust gas entrance (30) from the combustion chamber, enters the 4th wind chamber (33) through passage (34), is discharged outside the body of heater by waste gas outlet (31) at last.Waste gas outlet can be provided with vacuum fan.Vacuum fan is set can makes fuel combustion more abundant, and the generation of the dust stratification that slows down.The passage in two waste gas wind of described connection chamber can be provided with one or more.
New wind and waste gas are advanced in wind path separately, isolate fully each other, have guaranteed the cleaning of the hot blast of output.New wind wind chamber is staggered with waste gas wind chamber, constantly heats after making new wind enter new wind wind path, from outside to inside, reaches the highest outer wall of combustion chamber of temperature until at last, finishes heat-processed at last, is exported by hot-blast outlet; And the top temperature state of waste gas when discharging from the combustion chamber, the stroke through at the waste gas wind path by way of two waste gas wind chambeies, constantly is subjected to the cooling of new wind, by dividing plate waste heat is passed to new wind, finally discharges outside the body of heater with very low temperature at waste gas outlet.
The wind chamber (22) of close combustion chamber is new wind wind chamber with the wind chamber (23) away from the combustion chamber; The wind chamber (22) of close combustion chamber and one or more waste gas wind chamber is set, one or more new wind wind chambeies are set or new wind wind chamber is not set between the wind chamber (23) away from the combustion chamber, its order can be provided with arbitrarily but be interspersed with new wind wind chamber and waste gas wind chamber in the present embodiment and help heat exchange the most, and is the most reasonable.
From improving the angle of thermo-efficiency, wind chamber quantity is The more the better, but consider the volume of hotblast stove, the complexity and the manufacturing cost of manufacturing, waste gas wind chamber is comparatively reasonable with one to three, newly wind wind chamber is corresponding Duos one than waste gas wind chamber, present embodiment waste gas wind chamber is two, and new wind wind chamber is three.
Arrange in the wind chamber of this scheme, make heat that burning produces can be under without the situation of lagging material or lagging material by rationally, utilize fully, and want lagging material or lagging material unlike considerable scheme in the prior art.Particularly under the technical scheme that combustion chamber and heat exchange structure split, not only need lagging material or lagging material, increase cost, strengthen the complexity of manufacturing process, and still have quite a lot of unnecessary heat to run off.
With the angle of saving material and raising the efficiency, hotblast stove is fit to large-scale production with cylindrical the best.But in practice, consider the restriction of situations such as manufacture, producing apparatus, the optimum shape of hotblast stove should be polygon cylindricality, particularly positive square, its manufacturing is simple especially, required equipment seldom, required tooling cost is very low; And owing to produce a lot of leftover bits cylindrical unlike making, the manufacturing of comprehensive whole body of heater, actual required material on the contrary still less, the reduction of the heat exchange efficiency that causes then is negligible.
The present invention is the efficient that further improves heat exchange, as shown in Figure 2, at outer wall of combustion chamber and/or dividing plate arranged outside heat abstractor is arranged, also promptly both can be separately at outer wall of combustion chamber or dividing plate arranged outside heat abstractor, also can be simultaneously at outer wall of combustion chamber and dividing plate arranged outside heat abstractor.Simple radiating device is for being provided with radiator element (8) with welding or other modes on outer wall of combustion chamber, the purpose that is provided with of described radiator element (8) is to strengthen the contact area of new wind and high temperature source, at outer wall of combustion chamber radiator element (8) is set and is equivalent to strengthen outer wall of combustion chamber.Radiator element (8) can align at random angles, considers the flow direction of new wind, and being parallel to new wind flow direction with radiator element (8) is the best, the resistance minimum that is subjected to of hot blast like this, and radiator element (8) two sides can the new wind of even heating.
Improve the another kind of measure of heat exchange efficiency, axially be vertical spiral dividing plate in described wind chamber, being provided with.After described spiral dividing plate is set, the wind chamber will become screw type, after new wind or waste gas enter screw type wind chamber, will be from bottom to top, or spiral from the top down advancing, its distance of advancing is elongated, and because spiral dividing plate also is equivalent to heat abstractor, strengthen the contact area of hot blast or waste gas, thereby improved heat exchange efficiency.
Hotblast stove certainly leads to dust stratification after using for some time in the body of heater, in order to remove this dust stratification, establish several ash discharging gears.As shown in Figure 3, described ash discharging gear is arranged at the bottom in waste gas wind chamber, form by base plate (6), ash discharge pipeline (61), ash-removing door (62), base plate is provided with an opening and connects the ash discharge pipeline, ash discharge pipeline below is provided with ash-removing door, and ash-removing door can adopt prior art, as drawer type etc., purpose is to seal this outlet at ordinary times, and is easy to open when needing.The opening of the base plate of each ash discharging gear is positioned at the extreme lower position of base plate, and the base plate of opening both sides raises gradually.Under this scheme, dust stratification drops on the ash discharging gear earlier usually.Even dust stratification is attached on other positions and since base plate be oblique down, so also can be easy to dust stratification be removed by knocking, sweep mode such as scrape.
In waste gas wind chamber during more than one, with the communication passage between the waste gas wind chamber be arranged at the bottom and run through whole one week of dividing plate, can make two or more waste gas wind chamber the common base plate be arranged, shared ash discharging gear, can reduce the sum of ash discharging gear, reduce manufacturing cost.
Claims (13)
1. a hotblast stove comprises combustion air inlet (60), fuel inlet, combustion chamber (1), wind chamber, cold air inlet (20), hot-blast outlet (21), waste gas outlet (31), it is characterized in that,
Described wind chamber comprises new wind wind chamber, waste gas wind chamber; New wind wind path and waste gas wind path are arranged in the described hotblast stove;
Two or more several new wind wind chamber and cold air inlet (20), hot-blast outlet (21) form described new wind wind path, adjacent several channel connections of described new wind wind chamber;
One or more several waste gas wind chambeies and exhaust gas entrance (30), waste gas outlet (31) are formed described waste gas wind path, adjacent several channel connections of waste gas wind chamber, described exhaust gas entrance (30) are communicated with the combustion chamber (1) and the waste gas wind chamber (32) of close combustion chamber;
The wind chamber (22) of close combustion chamber is in outer wall of combustion chamber (4) and is enclosed between the dividing plate (5) in the outside, combustion chamber and on the base plate (6), all the other described wind chambeies be between two dividing plates and base plate (6) on.
2. hotblast stove as claimed in claim 1, the wind chamber (22) of close combustion chamber is new wind wind chamber with the wind chamber (23) away from the combustion chamber; The wind chamber (22) of close combustion chamber and one or more waste gas wind chamber is set, one or more new wind wind chambeies are set or new wind wind chamber is not set between the wind chamber (23) away from the combustion chamber.
3. hotblast stove as claimed in claim 1 or 2, described outer wall of combustion chamber (7) is that sphere, semisphere or wall are sphere or conical as cylindrical, top, and it is sphere or taper shape or flat-top or arbitrary surface as cylinder-shaped top that the outboard partition of encirclement combustion chamber (1) should be sphere, semisphere or wall mutually; Or described outer wall of combustion chamber (7) is the Polygons cylinder, or outer wall of combustion chamber (7) wall is corresponding polygon vertebra shape or flat-top as polygon cylindricality, top, it is polygon cylindricality that the described dividing plate of encirclement combustion chamber (1) should be the bottom mutually, and the top is corresponding polygon taper, or is flat-top.
4. hotblast stove as claimed in claim 1 or 2, described outer wall of combustion chamber and/or dividing plate arranged outside have heat abstractor (8).
5. hotblast stove as claimed in claim 3, described outer wall of combustion chamber and/or dividing plate arranged outside have heat abstractor (8).
6. hotblast stove as claimed in claim 4, described heat abstractor (8) are conducting strip, the heat pipe of vertical, horizontal or other angular distribution.
7. hotblast stove as claimed in claim 5, described heat abstractor (8) are conducting strip, the heat pipe of vertical, horizontal or arbitrarily angled distribution.
8. hotblast stove as claimed in claim 1 or 2, being provided with in the described wind chamber axially is vertical spiral dividing plate.
9. hotblast stove as claimed in claim 3, being provided with in the described wind chamber axially is vertical spiral dividing plate.
10. hotblast stove as claimed in claim 1 or 2, setting is provided with several ash discharging gears, described ash discharging gear is arranged at the bottom in waste gas wind chamber, form by base plate (6), ash discharge pipeline (61), ash-removing door (62), base plate is provided with an opening and connects the ash discharge pipeline, ash discharge pipeline below is provided with ash-removing door, and the opening of the base plate of each ash discharging gear is positioned at the extreme lower position of base plate, and the base plate of opening both sides raises gradually.
11. hotblast stove as claimed in claim 3, setting is provided with several ash discharging gears, described ash discharging gear is arranged at the bottom in waste gas wind chamber, form by base plate, ash discharge pipeline, ash-removing door, base plate is provided with an opening and connects the ash discharge pipeline, ash discharge pipeline below is provided with ash-removing door, and the opening of the base plate of each ash discharging gear is positioned at the extreme lower position of base plate, and the base plate of opening both sides raises gradually.
12. hotblast stove as claimed in claim 4, setting is provided with several ash discharging gears, described ash discharging gear is arranged at the bottom in waste gas wind chamber, form by base plate, ash discharge pipeline, ash-removing door, base plate is provided with an opening and connects the ash discharge pipeline, ash discharge pipeline below is provided with ash-removing door, and the opening of the base plate of each ash discharging gear is positioned at the extreme lower position of base plate, and the base plate of opening both sides raises gradually.
13. hotblast stove as claimed in claim 1 or 2, described exhaust gas entrance (30) is provided with filtering net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102058579A CN101880742A (en) | 2010-06-22 | 2010-06-22 | Hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102058579A CN101880742A (en) | 2010-06-22 | 2010-06-22 | Hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101880742A true CN101880742A (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102058579A Pending CN101880742A (en) | 2010-06-22 | 2010-06-22 | Hot blast stove |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945487A (en) * | 2019-04-18 | 2019-06-28 | 唐超 | The more spiral energy-saving hot-blast stoves of multilayer |
| CN111023162A (en) * | 2019-12-31 | 2020-04-17 | 熊玉昌 | Efficient energy-saving environment-friendly return air heating furnace |
| CN111023161A (en) * | 2019-12-31 | 2020-04-17 | 熊玉昌 | Efficient energy-saving environment-friendly air return furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216988U (en) * | 1987-12-30 | 1988-10-12 | 中国农业工程研究设计院 | Two-circuit indirectly-heating hot-blast stove using metal body and burnt coal |
| CN2273007Y (en) * | 1996-08-20 | 1998-01-21 | 河北工业大学 | Vertical cylindrical double-return hot-blast stove |
| CN2700772Y (en) * | 2004-06-03 | 2005-05-18 | 张振伟 | Indirect heat transferred hot-blast stove with high temperature and high efficiency |
| CN201770719U (en) * | 2010-06-22 | 2011-03-23 | 南宁市烤得快烘烤设备有限公司 | Blast stove |
-
2010
- 2010-06-22 CN CN2010102058579A patent/CN101880742A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216988U (en) * | 1987-12-30 | 1988-10-12 | 中国农业工程研究设计院 | Two-circuit indirectly-heating hot-blast stove using metal body and burnt coal |
| CN2273007Y (en) * | 1996-08-20 | 1998-01-21 | 河北工业大学 | Vertical cylindrical double-return hot-blast stove |
| CN2700772Y (en) * | 2004-06-03 | 2005-05-18 | 张振伟 | Indirect heat transferred hot-blast stove with high temperature and high efficiency |
| CN201770719U (en) * | 2010-06-22 | 2011-03-23 | 南宁市烤得快烘烤设备有限公司 | Blast stove |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945487A (en) * | 2019-04-18 | 2019-06-28 | 唐超 | The more spiral energy-saving hot-blast stoves of multilayer |
| CN111023162A (en) * | 2019-12-31 | 2020-04-17 | 熊玉昌 | Efficient energy-saving environment-friendly return air heating furnace |
| CN111023161A (en) * | 2019-12-31 | 2020-04-17 | 熊玉昌 | Efficient energy-saving environment-friendly air return furnace |
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Application publication date: 20101110 |