CN220771378U - Multi-fuel direct-fired hot blast stove - Google Patents
Multi-fuel direct-fired hot blast stove Download PDFInfo
- Publication number
- CN220771378U CN220771378U CN202322226734.9U CN202322226734U CN220771378U CN 220771378 U CN220771378 U CN 220771378U CN 202322226734 U CN202322226734 U CN 202322226734U CN 220771378 U CN220771378 U CN 220771378U
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- China
- Prior art keywords
- hot blast
- blast stove
- main machine
- hot
- air
- Prior art date
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- 239000000446 fuel Substances 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 239000000779 smoke Substances 0.000 claims description 21
- 238000012946 outsourcing Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002283 diesel fuel Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003345 natural gas Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
The utility model relates to the technical field of boilers, in particular to a multi-fuel direct-fired hot blast stove which comprises a hot blast stove main machine, wherein a chain grate is arranged at the bottom of the hot blast stove main machine, a feeding hopper is arranged at the top of one end of the chain grate, air outlets are formed in the outer walls of two sides of the hot blast stove main machine, a blower is arranged at the other end of the chain grate, a burner is arranged at one end of the hot blast stove main machine, a hot air outlet is formed in the other end of the hot blast stove main machine, a combustion chamber is arranged in the hot blast stove main machine and comprises a front arch and a rear arch, and a horizontal section is arranged at the bottom end of the rear arch. In the multi-fuel direct-fired hot blast stove, natural gas and light diesel oil are combusted through the burner at the front part, the structure is compact, the installation and the operation are convenient, a large amount of air inlet can be realized through the blower, the combustion effect is improved, the temperature is raised quickly, the efficiency is high, the electric air regulating doors arranged at the two sides can regulate the cold air quantity entering the stove, the temperature of hot air discharged from the stove can be accurately controlled, and the adopted technology and the heat supply level reach the domestic advanced level.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a multi-fuel direct-fired hot blast stove.
Background
With the continuous progress of society, hot air stoves heated with hot air have gradually replaced conventional electric heating and steam heating equipment in many industries, because heating with hot air can provide heat utilization efficiency as well as working efficiency.
The hot blast stove in the prior art is inconvenient to flexibly adjust the quantity of entering cold air according to the needs in use, the existing method is to control the fuel conveying rate of a combustor, but the mode is difficult to accurately control the upper temperature limit, so that the air outlet temperature of the hot blast stove is inconvenient to adjust.
Disclosure of Invention
The utility model aims to provide a multi-fuel direct-fired hot blast stove so as to solve the problem that the hot blast stove provided in the background art is inconvenient to flexibly adjust the entering cold air quantity according to the needs in use.
In order to achieve the above purpose, the utility model provides a multi-fuel direct-fired hot blast stove which comprises a hot blast stove main unit, wherein a chain grate is arranged at the bottom of the hot blast stove main unit, a feeding hopper is arranged at the top of one end of the chain grate, air outlets are formed in the outer walls of two sides of the hot blast stove main unit, a blower is arranged at the other end of the chain grate, a burner is arranged at one end of the hot blast stove main unit, a hot blast outlet is formed in the other end of the hot blast stove main unit, a combustion chamber is arranged in the hot blast stove main unit and comprises a front arch and a rear arch, and a horizontal segment is arranged at the bottom end of the rear arch.
Preferably, a steel frame outer cover is arranged outside the hot blast stove main unit.
Preferably, a furnace door is arranged on one side of the hot blast stove main unit.
Preferably, a smoke folding wall is arranged in the hot air furnace main machine and close to the lower part of the hot air outlet, the smoke folding wall and the rear arch form a smoke channel together, one end of the smoke channel is communicated with the combustion chamber, and the other end of the smoke channel is communicated with the hot air outlet.
Preferably, a top plate is mounted above the interior of the hot blast stove main unit.
Preferably, the air inlets are all provided with electric air regulating doors.
Preferably, the output end of the burner is communicated with the inside of the combustion chamber through a pipeline.
Compared with the prior art, the utility model has the beneficial effects that:
in this many fuel direct-fired hot-blast furnaces, natural gas and light diesel oil burn through the combustor in front portion, compact structure, and installation and convenient operation can realize a large amount of air intakes through the air blower, improve combustion effect, and the intensification is fast, and is efficient, can adjust the cold amount of wind of going into the stove through the electronic air damper that both sides were arranged simultaneously, and then can accurate control hot-blast temperature of coming out of the stove, and its technique and the heat supply level that adopts have reached domestic advanced level.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
fig. 3 is a schematic view of the internal structure of the present utility model.
The meaning of each reference sign in the figure is:
1. a main unit of the hot blast stove; 11. outsourcing a steel frame; 12. a furnace door; 13. an air inlet; 14. a hot air outlet; 15. an electric damper; 16. a front arch; 17. a rear arch; 18. a top plate; 19. a smoke folding wall; 2. a chain grate; 3. a burner; 4. feeding a hopper; 5. a blower.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a multi-fuel direct-fired hot blast stove, which is shown in fig. 1-3, and comprises a hot blast stove main machine 1, wherein a chain grate 2 is arranged at the bottom of the hot blast stove main machine 1 and is used for burning fuel and discharging slag, a feeding hopper 4 is arranged at the top of one end of the chain grate 2 and is used for feeding, air inlets 13 are arranged on the outer walls of two sides of the hot blast stove main machine 1, an induced draft fan is connected to the outside of the air inlets 13 and is used for inducing air, an air blower 5 is arranged at the other end of the chain grate 2 and is used for blowing air into the hot blast stove main machine 1, a combustor 3 is arranged at one end of the hot blast stove main machine 1, a hot blast outlet 14 is arranged at the other end of the hot blast main machine 1, a combustion chamber is arranged in the hot blast stove main machine 1 and comprises a front arch 16 and a rear arch 17, and a horizontal section is arranged at the bottom end of the rear arch 17.
In the embodiment, a steel frame outer cover 11 is arranged outside the hot blast stove main unit 1 and is used for external protection of the hot blast stove main unit 1.
Specifically, one side of the main unit 1 of the hot blast stove is provided with a furnace door 12 for opening the main unit 1 of the hot blast stove for adding fuel.
Further, a smoke folding wall 19 is arranged in the hot blast stove main unit 1 near the lower part of the hot blast outlet 14, the smoke folding wall 19 and the rear arch 17 form a smoke channel together for smoke flow, one end of the smoke channel is communicated with the combustion chamber, and the other end of the smoke channel is communicated with the hot blast outlet 14 for discharging hot blast.
Further, a top plate 18 is installed above the inside of the main unit 1 for heat insulation of the top of the main unit 1.
Further, the air inlets 13 are respectively provided with an electric air damper 15 for adjusting the air inlet of the air inlets 13.
Further, the output end of the burner 3 is communicated with the inside of the combustion chamber through a pipeline for burning fuel.
When the multi-fuel direct-fired hot blast stove is used, firstly, high-temperature smoke is generated in a combustion chamber by burning fuel, the high-temperature smoke moves along a combustion chamber and a smoke channel under the action of a blower 5 and is fully mixed with air entering through an induced air port 13, the mixed hot smoke reaches an external drying chamber through a hot air outlet 14, a draught fan of the induced air port 13 is opened, natural ventilation is increased, after an ignition substance is combusted, an electric air damper 15 is turned down, the draught fan of the electric air damper 15 is intermittently opened, after the ignition substance is combusted, manual coal addition is started, at the moment, the blower 5 can be started, when a coal layer is combusted, a furnace door 12 can be closed, the coal amount is increased into the combustion chamber, the air quantity of the blower 5 and the draught fan is regulated, and the negative pressure of the combustion chamber is maintained at 20-30Pa, so that the combustion gradually becomes normal.
There are three general conditions for furnace shutdown: temporary furnace shutdown, emergency furnace shutdown and normal furnace shutdown.
a. Temporarily stopping the furnace: when the equipment stops working in a short time at noon break, night or at a short time, the problem that the draught fan is stopped, the electric air damper 15 is closed, and the blower 5 is stopped when the temperature of the hot air outlet 14 is lower than 50 ℃ can be solved by adopting a fire pressing method, so that the normal operation can be restored at the highest speed when the rest is finished or the equipment needs to supply heat.
b. Emergency furnace shutdown: when the operation is in sudden power failure or unexpected fault of equipment requiring heat occurs and overhauling is needed, the furnace should be stopped in emergency. The flue induced draft fan is stopped, the electric damper 15 is opened to the maximum, fire is pressed, and the furnace door 12 is opened. In operation, power failure is extremely forbidden, and the service life of the hot blast stove is greatly reduced due to the power failure.
c. Normally stopping the furnace: the operation is finished or the furnace is shut down in a planned way after long-time maintenance is needed. At this time, the ash deposited in the main machine 1 of the hot blast stove should be cleaned, and all ash in the combustion chamber should be cleaned.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a many fuel direct-fired hot-blast furnace, includes hot-blast furnace host computer (1), its characterized in that: the automatic air supply device is characterized in that a chain grate (2) is arranged at the bottom of a hot blast stove main machine (1), a feeding hopper (4) is arranged at the top of one end of the chain grate (2), air outlets (13) are formed in the outer walls of two sides of the hot blast stove main machine (1), a blower (5) is arranged at the other end of the chain grate (2), a combustor (3) is arranged at one end of the hot blast stove main machine (1), a hot blast outlet (14) is formed in the other end of the hot blast stove main machine (1), a combustion chamber is arranged in the hot blast stove main machine (1) and comprises a front arch (16) and a rear arch (17), and a horizontal section is arranged at the bottom end of the rear arch (17); and the air inlets (13) are provided with electric air regulating doors (15).
2. The multi-fuel direct-fired hot blast stove according to claim 1, characterized in that: the outside of hot-blast furnace host computer (1) is provided with steelframe outsourcing (11).
3. The multi-fuel direct-fired hot blast stove according to claim 1, characterized in that: one side of the hot blast stove main unit (1) is provided with a furnace door (12).
4. The multi-fuel direct-fired hot blast stove according to claim 1, characterized in that: a smoke folding wall (19) is arranged in the hot air furnace main machine (1) and close to the lower portion of the hot air outlet (14), the smoke folding wall (19) and the rear arch (17) form a smoke channel together, one end of the smoke channel is communicated with the combustion chamber, and the other end of the smoke channel is communicated with the hot air outlet (14).
5. The multi-fuel direct-fired hot blast stove according to claim 1, characterized in that: a top plate (18) is arranged above the inside of the hot blast stove main unit (1).
6. The multi-fuel direct-fired hot blast stove according to claim 1, characterized in that: the output end of the burner (3) is communicated with the inside of the combustion chamber through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322226734.9U CN220771378U (en) | 2023-08-18 | 2023-08-18 | Multi-fuel direct-fired hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322226734.9U CN220771378U (en) | 2023-08-18 | 2023-08-18 | Multi-fuel direct-fired hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220771378U true CN220771378U (en) | 2024-04-12 |
Family
ID=90616555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322226734.9U Active CN220771378U (en) | 2023-08-18 | 2023-08-18 | Multi-fuel direct-fired hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220771378U (en) |
-
2023
- 2023-08-18 CN CN202322226734.9U patent/CN220771378U/en active Active
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