CN110129504A - A kind of high-efficiency and energy-saving type high-blast-temperature hot-blast stove - Google Patents
A kind of high-efficiency and energy-saving type high-blast-temperature hot-blast stove Download PDFInfo
- Publication number
- CN110129504A CN110129504A CN201910603026.8A CN201910603026A CN110129504A CN 110129504 A CN110129504 A CN 110129504A CN 201910603026 A CN201910603026 A CN 201910603026A CN 110129504 A CN110129504 A CN 110129504A
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- blast
- wall
- chamber
- furnace body
- gas
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/02—Brick hot-blast stoves
- C21B9/04—Brick hot-blast stoves with combustion shaft
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/10—Other details, e.g. blast mains
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The present invention relates to efficient high-blast-temperature hot-blast stoves, it is easy to damage hot-blast outlet can effectively to be solved, the problem of inconvenient maintenance, its solve technical solution be, including furnace body, bottom is provided with gas distributing chamber in furnace body, side is provided with exhanst gas outlet in gas distributing chamber, the other side is provided with cold air inlet, furnace stay is provided in gas distributing chamber, on gas distributing chamber top, installation is connected with fire grate above furnace stay, regenerative chamber is equipped in furnace body above gas distributing chamber, it is provided in furnace body above regenerative chamber and is overlapped room, it is overlapped in the furnace body above room and combuster is set, top of combustion chamber is equipped with ceramic burner, upper wall body of the present invention is reduced to mitigate the pressure to hot-blast outlet top, the service life is longer, and maintenance is more convenient, improving hot-blast stove just reduces the iron coke per ton ratio of ironmaking to the supply air temperature of blast furnace, it reduces coke ratio and is equal to energy conservation, combustion Burning-out is congruent to environmental protection, is the innovation on hot-blast stove.
Description
Technical field
The present invention relates to hot-blast stove, especially a kind of efficient high-blast-temperature hot-blast stove.
Background technique
Existing Combustion of Hot Air Furnace area is independently arranged with heat-accumulating area, and construction cost is high, and undercompounding, ignition temperature is low, both
Coke usage amount is wasted, and results in a large amount of exhaust gas discharge, and the damage of existing hot air furnace hot air outlet is of the same trade difficult
To solve the problems, such as, the reason is that the change in displacement of wall, most hot winds go out in addition for a long time under high wind-warm syndrome high-pressure state
Mouthful it is not achieved generation furnace life, is easy brick in use and collapses, when maintenance needs superjacent part all to dismantle, maintenance capacity
It is big costly, therefore, the problem of improvement of hot-blast stove is current urgent need to resolve.
Summary of the invention
For above situation, for the defect for solving the prior art, the purpose of the present invention is just to provide a kind of efficiently high wind-warm syndrome
Hot-blast stove can effectively solve the problems, such as that hot-blast outlet is easy to damage, inconvenient maintenance.
The technical solution that the present invention solves is, including furnace body, and bottom is provided with gas distributing chamber, gas distributing chamber in furnace body
Interior side is provided with exhanst gas outlet, and the other side is provided with cold air inlet, furnace stay is provided in gas distributing chamber, furnace stay top is in gas
The installation of body distributing chamber top is connected with fire grate, and regenerative chamber, the furnace above regenerative chamber are equipped in the furnace body above gas distributing chamber
It is provided in vivo and is overlapped room, be overlapped in the furnace body above room and combuster is set, top of combustion chamber is equipped with ceramic burner, furnace body
Exterior wall is made of steel plate welding, is made of from bottom to up cylindrical wall, taper wall, straight section wall and arch wall, taper
Wall, which is engaged with cylindrical wall in step-like or bent seam labyrinth-like, to be welded together, and straight section wall and taper wall are welded on one
It rises, arch wall, which is engaged with straight section wall in step-like or bent seam labyrinth-like, to be welded together, arch wall, straight section wall, cone
Shape wall lower part is respectively arranged with the first supporting plate, the second supporting plate, third supporting plate, the first supporting plate, the second supporting plate, third supporting plate with
Furnace body exterior wall welds together, and combustion chamber has been uniformly arranged multiple air mixing chambers, air mixing chamber difference in arch wall
It is connected with air circuit and coal gas circuit, air circuit is connected with air intake, and coal gas circuit is connected with gas entry,
Hot air outlet is provided on straight section wall.
The present invention breaks old design concept, can be in heat exchanger (checker brick) using the uniformly mixed gas in part
Burning, reduces the very big bags, huge hot wind furnace volume reduce it is many reduce equipment investment cost, and reach
The purpose of high wind-warm syndrome air-supply when caloric value changes is arrived, hot-blast outlet wall has independent support, and upper wall body is reduced to mitigate to hot wind
The pressure on top is exported, the service life is longer, and maintenance is more convenient, and improving hot-blast stove to the supply air temperature of blast furnace just reduces ironmaking
Iron coke per ton ratio, reduce coke ratio be equal to energy conservation, burning be equal to environmental protection, be the innovation on hot-blast stove.
Detailed description of the invention
Fig. 1 is structural front view of the invention.
Fig. 2 is structural profile main view of the invention.
Fig. 3 is air mixing chamber structural profile main view of the invention.
Fig. 4 is air mixing chamber structural profile top view of the invention.
Specific embodiment
Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail.
It is provided by Fig. 1-4, the present invention includes furnace body, and bottom is provided with gas distributing chamber 2 in furnace body 8, in gas distributing chamber 2
Side is provided with exhanst gas outlet 1, and the other side is provided with cold air inlet 3, is provided with furnace stay 18 in gas distributing chamber 2, on furnace stay 18
Side is connected with fire grate 4 in the installation of gas distributing chamber top, is equipped with regenerative chamber 5, regenerative chamber in the furnace body of 2 top of gas distributing chamber
It is provided in the furnace body of 5 tops and is overlapped room 9, be overlapped in the furnace body of 9 top of room and combuster 17 is set, be equipped at the top of combustion chamber 17
Ceramic burner, furnace body exterior wall is made of steel plate welding, from bottom to up by cylindrical wall 16d, taper wall 16c, straight section wall
Body 16b and arch wall 16a is constituted, and taper wall 16c is engaged welding in step-like or bent seam labyrinth-like with cylindrical wall 16c
Together, straight section wall 16b and taper wall 16c welds together, arch wall 16a and straight section wall 16b in step-like or
Song seam labyrinth-like occlusion welds together, and arch wall 16a, straight section wall 16b, the lower part taper wall 16c are respectively arranged with the
One supporting plate 7a, the second supporting plate 7b, third supporting plate 7c, the first supporting plate 7a, the second supporting plate 7b, third supporting plate 7c are welded with furnace body exterior wall
Be connected together, combustion chamber 17 has been uniformly arranged multiple air mixing chambers 15 in arch wall 16a, air mixing chamber 15 respectively with
Air circuit 14a is connected with coal gas circuit 14b, and air circuit 14a is connected with air intake 12, coal gas circuit 14b and coal
Gas entrance 13 is connected, and hot air outlet 10 is provided on straight section wall 16b.
In order to guarantee using effect, the combustion chamber 17 is provided with the second maintenance manhole 11 on straight section wall 16b.
It is provided with the first maintenance manhole 6 on the coincidence room 9, conveniently enters to repair, pry through, thermometric.
The fire grate 4 is stacked with the heat storage 5a(fireproof lattice brick or flame-proof sphere for carrying out heat exchange above).
The coincidence room 9 is provided with the flame-proof sphere of the checker brick that aperture is φ 40mm or 70 or more diameter, effectively solves
Combustion space, the abundant accumulation of heat of full combustion, circulated gases improve temperature, save the energy, under equal conditions heat exchanger is strong, subtracts
Few discharge, more Gao Fengwen, heat storage are more, moreover it is possible to prevent from blocking.
The regenerative chamber is provided with the checker brick that aperture is φ 25-30mm.
The gas mixer chamber is made by refractory material.
Several mixed gas spouts 19 are provided in the combustion chamber 17, mixed gas spout 19 mixes with air room
15 are connected.
Service condition of the invention is that lower portion of furnace body is equipped with gas distributing chamber, and interior is equipped with exhanst gas outlet and cold air inlet,
Fire grate is installed on gas distributing chamber top, stacks heat storage (fireproof lattice brick or the fire resisting for carrying out heat exchange above fire grate
Ball), top straight section and the vertex of a cone do Gravity support with independent supporting plate, and top straight section is equipped with maintenance manhole, and regenerative chamber builds general (pass
System) fireproof lattice brick or flame-proof sphere, it is overlapped room 9(taper wall straight section and the part vertex of a cone) build large aperture (opposite regenerative chamber hole
Diameter) checker brick or major diameter flame-proof sphere, do burning and accumulation of heat public space, vertex of a cone top (neck) is equipped with straight section wall as combustion
Area is burnt, wall independently supports and opens up hot-blast outlet and manhole, observation thermometer hole, is equipped with ceramic burner, wall at the top of furnace body
Body is equipped with independent supporting plate and does Gravity support, and burner uses interior mixed firinor fuel burning form, is uniformly arranged multiple small mixing chambers in wall,
So that combustion air and coal gas is respectively enterd small mixing chamber and spray into combustion chamber from nozzle after mixing, principle is that mixing building volume is got over
The faster small mixing velocity the more uniform, and mixing chamber more multiinjector is more, and uniformly mixed gas is made uniformly to spray into combustion chamber internal combustion
It is faster to burn speed, burns more complete, it is the optimal selection for reaching national emission standard that the CO content in exhaust gas is lower, and hot wind goes out
Mouth is placed at the upper neck of centrum, and hot-blast outlet (neck) wall is made to have independent support, and upper wall body reduction hot wind to mitigate
The pressure on mouth top, the service life is longer, and maintenance is more convenient, and the setting for being overlapped room 9 can reduce construction cost, and combustion high temperature point
Higher wind-warm syndrome can be obtained by being located in checker brick, and air outlet 10 is placed on eminence, in the case where high temperature and pressure, aloft, pressure
Small, the service life is long, and song seam labyrinth-like occlusion can be divided into entire stove 3 major parts, and effect is under preventing from bringing on the whole when expansion
Move back and forth.
The present invention is different from the position of hot-blast outlet setting installation of traditional (existing) hot-blast stove, only in this way could be combustion
Area and accumulation of heat area overlapping are burnt, heat exchange wind-warm syndrome had not only been improved in this way but also had reduced construction cost, closes uniform gas using part is dark
Body can burn in heat exchanger (checker brick), reduce the very big bags, and huge hot wind furnace volume is reduced
Methods that are many to reduce equipment investment cost, being burnt using small top dome short distance flame gas, both air and coal gas entered combustion chamber
Preceding to be adequately mixed, the gas part mixed is burnt in the combustion chamber, and combustion high temperature area is in heat exchanger (checker brick)
Burning, makes heat exchanger (checker brick) be heated to the ignition temperature upper limit, achievees the purpose that high wind-warm syndrome air-supply when caloric value changes, exists at present
There are no this technology is used in hot-blast stove heat exchange process, smelting industry, which can save a large amount of coke using this scheme, to be made
Dosage, had not only saved the energy but also had reduced exhaust gas discharge and achieve the purpose that energy-saving and environmental protection, created more profits for enterprise, this
Invention is the innovative variation of iron industry, will push the big promotion of the technology of China's iron industry.
The present invention can provide high wind-warm syndrome, and principle is that flame gas in material burning can get higher temperature, such as lime
Kiln coal burns in lime stone, and sintered bauxite is also that as a same reason, ironmaking is also that coke is burnt etc. in iron ore to obtain
High-temperature is taken, coal gas and combustion-supporting phoenix are burnt in solid material, solid material are heated to higher temperature, flame gas is in object in a word
The highest obtainable temperature that burns in material saves fuel again, can reach 1250 °C or more, and energy conservation using blast furnace of the present invention air-supply wind-warm syndrome
Environmental protection, using effect is good, is the innovation on hot-blast stove, has good economic and social benefit.
Claims (8)
1. a kind of efficient high-blast-temperature hot-blast stove, including furnace body, which is characterized in that furnace body (8) interior bottom is provided with gas distributing chamber
(2), gas distributing chamber (2) interior side is provided with exhanst gas outlet (1), and the other side is provided with cold air inlet (3), gas distributing chamber
(2) it is provided with furnace stay (18) in, on gas distributing chamber top, installation is connected with fire grate (4) above furnace stay (18), gas distribution
Regenerative chamber (5) are equipped in furnace body above room (2), regenerative chamber is provided with heat storage (5a), sets in the furnace body above regenerative chamber (5)
It is equipped with and is overlapped room (9), be overlapped in the furnace body above room (9) and combuster (17) are set, equipped with ceramics combustion at the top of combustion chamber (17)
Burner, furnace body exterior wall is made of steel plate welding, from bottom to up by cylindrical wall (16d), taper wall (16c), straight section wall
(16b) and arch wall (16a) are constituted, and taper wall (16c) is stung with cylindrical wall (16c) in step-like or bent seam labyrinth-like
Conjunction welds together, and straight section wall (16b) welds together with taper wall (16c), arch wall (16a) and straight section wall
(16b) welds together in step-like or bent seam labyrinth-like occlusion, arch wall (16a), straight section wall (16b), taper wall
The lower part (16c) is respectively arranged with the first supporting plate (7a), the second supporting plate (7b), third supporting plate (7c), the first supporting plate (7a), the second support
Plate (7b), third supporting plate (7c) weld together with furnace body exterior wall, and combustion chamber (17) are uniformly arranged in arch wall (16a)
Having multiple air mixing chambers (15), air mixing chamber (15) is connected with air circuit (14a) and coal gas circuit (14b) respectively,
Air circuit (14a) is connected with air intake (12), and coal gas circuit (14b) is connected with gas entry (13), straight section wall
Hot air outlet (10) are provided on (16b).
2. efficient high-blast-temperature hot-blast stove according to claim 1, which is characterized in that the combustion chamber (17) is in straight section wall
The second maintenance manhole (11) is provided on body (16b).
3. efficient high-blast-temperature hot-blast stove according to claim 1, which is characterized in that be provided on the coincidence room (9)
First maintenance manhole (6).
4. efficient high-blast-temperature hot-blast stove according to claim 1, which is characterized in that the fire grate (4) is stacked above
There are the fireproof lattice brick or flame-proof sphere for carrying out heat exchange.
5. efficient high-blast-temperature hot-blast stove according to claim 1, which is characterized in that the coincidence room (9) is provided with hole
Diameter is the checker brick or flame-proof sphere of φ 40mm.
6. efficient high-blast-temperature hot-blast stove according to claim 1, which is characterized in that the heat storage (5a) is for aperture
The checker brick of φ 25-30mm.
7. efficient high-blast-temperature hot-blast stove according to claim 1, which is characterized in that the gas mixer chamber is by fire proofed wood
Material is made.
8. efficient high-blast-temperature hot-blast stove according to claim 1, which is characterized in that be provided in the combustion chamber (17)
Several mixed gas spouts (19), mixed gas spout (19) mix with air room (15) and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603026.8A CN110129504A (en) | 2019-07-05 | 2019-07-05 | A kind of high-efficiency and energy-saving type high-blast-temperature hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603026.8A CN110129504A (en) | 2019-07-05 | 2019-07-05 | A kind of high-efficiency and energy-saving type high-blast-temperature hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110129504A true CN110129504A (en) | 2019-08-16 |
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ID=67566837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910603026.8A Pending CN110129504A (en) | 2019-07-05 | 2019-07-05 | A kind of high-efficiency and energy-saving type high-blast-temperature hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110129504A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202415585U (en) * | 2012-01-19 | 2012-09-05 | 陈维汉 | Hot-blast stove for spraying mixed coal gas and air in loop from uniformly-distributed spray nozzles to form reflow for combusting |
| CN108368999A (en) * | 2015-11-30 | 2018-08-03 | 保尔伍斯耐火工程有限责任公司 | Top combustion stove |
| CN210506408U (en) * | 2019-07-05 | 2020-05-12 | 郑州光大耐火材料有限公司 | High-efficiency energy-saving high-air-temperature hot blast stove |
-
2019
- 2019-07-05 CN CN201910603026.8A patent/CN110129504A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202415585U (en) * | 2012-01-19 | 2012-09-05 | 陈维汉 | Hot-blast stove for spraying mixed coal gas and air in loop from uniformly-distributed spray nozzles to form reflow for combusting |
| CN108368999A (en) * | 2015-11-30 | 2018-08-03 | 保尔伍斯耐火工程有限责任公司 | Top combustion stove |
| CN210506408U (en) * | 2019-07-05 | 2020-05-12 | 郑州光大耐火材料有限公司 | High-efficiency energy-saving high-air-temperature hot blast stove |
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