CN110553276A - Suspension type hot blast stove oxygenation system - Google Patents
Suspension type hot blast stove oxygenation system Download PDFInfo
- Publication number
- CN110553276A CN110553276A CN201910814833.4A CN201910814833A CN110553276A CN 110553276 A CN110553276 A CN 110553276A CN 201910814833 A CN201910814833 A CN 201910814833A CN 110553276 A CN110553276 A CN 110553276A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- pipe
- connecting pipe
- outlet
- hot blast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 15
- 239000000725 suspension Substances 0.000 title claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 76
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 76
- 239000001301 oxygen Substances 0.000 claims abstract description 76
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 239000002956 ash Substances 0.000 abstract description 32
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract description 11
- 239000000446 fuel Substances 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
- B01F27/906—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms with fixed axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/04—Blast-producing apparatus before the fire by induction of air for combustion, e.g. using steam jet
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a suspension type hot blast stove oxygen increasing system which comprises a stirring unit and an ash discharging unit which are arranged in a hearth, wherein a fire grate fixed in the hearth is arranged between the stirring unit and the ash discharging unit, an oxygen increasing device is arranged between the ash discharging unit and the fire grate, an air outlet is formed in the oxygen increasing device, and the air outlet direction of the air outlet points to the direction of the fire grate. Through set up oxygenation device between row's ash unit and grate, at the hot-blast furnace during operation, the gas outlet on the oxygenation device blows in the air to the furnace from bottom to top, and oxygen is gone into to the interior drum of ashes on the one hand, and the fuel that does not burn completely in making ashes burns once more under the cooperation of stirring unit, and on the other hand strikes ashes through the air current effect, prevents that ashes from piling up the caking to influence the smooth discharge of ashes.
Description
Technical Field
The invention relates to the technical field of hot blast stoves, in particular to an oxygenation system of a suspension type hot blast stove.
Background
With the rapid development of modern agriculture, the output of novel drying equipment is doubled, and the suspension type hot blast stove is also gradually applied to the drying of large batches of grains.
The fuel of the suspension hot blast stove is mainly rice hulls and crushed straws, and the fuels generate ashes after combustion and are accumulated on the bottom of the stove, so that the fuels cannot be sufficiently combusted, the heat utilization rate of the fuels is low, and the flue gas generated after combustion also contains carbon monoxide to destroy the ecological environment.
Disclosure of Invention
The invention provides a suspension hot blast stove oxygenation system which provides sufficient oxygen in a combustion furnace and ensures that fuel is fully combusted.
In order to achieve the purpose, the invention adopts the technical scheme that: a suspended hot blast stove oxygen increasing system comprises a stirring unit and an ash discharging unit which are arranged in a hearth, a grate fixed in the hearth is arranged between the stirring unit and the ash discharging unit, an oxygen increasing device is arranged between the ash discharging unit and the grate, an air outlet is formed in the oxygen increasing device, and the air outlet direction of the air outlet points to the direction of the grate.
Further, oxygenation device includes the connecting pipe, is provided with into oxygen pipe and play oxygen pipe on the circumferential direction of connecting pipe, advances the one end of oxygen pipe and the lumen intercommunication of connecting pipe, the other end and is connected with the oxygen source, goes out the one end of oxygen pipe and the lumen intercommunication of connecting pipe, the other end and is the closed form, has seted up the gas outlet on going out the pipe wall of oxygen pipe.
Furthermore, the oxygen inlet pipe and the oxygen outlet pipe are uniformly distributed and arranged along the circumferential direction of the connecting pipe.
Furthermore, gas outlets are uniformly arranged on the pipe wall of the upper side of the oxygen outlet pipe at intervals, and the gas outlet direction of the gas outlets points to the direction of the fire grate.
Furthermore, the connecting pipe is a regular polygon closed pipeline, the oxygen inlet pipe is arranged on one edge of the connecting pipe, and the oxygen outlet pipe is provided with a plurality of oxygen outlets which are respectively arranged corresponding to the edges of the connecting pipe.
Furthermore, the connecting pipe is in a regular octagon shape, the oxygen inlet pipe is arranged on one edge of the connecting pipe, and the oxygen outlet pipes are provided with seven oxygen outlet pipes which are respectively arranged corresponding to the other seven edges of the connecting pipe.
The beneficial effect of adopting above-mentioned technical scheme is: through set up oxygenation device between row's ash unit and grate, at the hot-blast furnace during operation, the gas outlet on the oxygenation device blows in the air to the furnace from bottom to top, and oxygen is gone into to the interior drum of ashes on the one hand, and the fuel that does not burn completely in making ashes burns once more under the cooperation of stirring unit, and on the other hand strikes ashes through the air current effect, prevents that ashes from piling up the caking to influence the smooth discharge of ashes.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Fig. 2 is a schematic structural view of the oxygen increasing device of the present invention.
Detailed Description
the technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
A suspended hot blast stove oxygen increasing system comprises a stirring unit 20 and an ash discharging unit 30 which are arranged in a hearth 10, a fire grate 40 fixed in the hearth 10 is arranged between the stirring unit 20 and the ash discharging unit 30, an oxygen increasing device 50 is arranged between the ash discharging unit 30 and the fire grate 40, an air outlet 51 is formed in the oxygen increasing device 50, and the air outlet direction of the air outlet 51 points to the direction of the fire grate 40. The core of the invention is that an oxygen increasing device is arranged between an ash discharging unit and a fire grate, when the hot blast stove works, an air outlet on the oxygen increasing device blows air into a hearth from bottom to top, on one hand, oxygen is blown into ash, under the cooperation of a stirring unit, incompletely combusted fuel in the ash is combusted again, on the other hand, the ash is impacted through airflow action, and the ash is prevented from being accumulated and agglomerated, so that the smooth discharge of the ash is influenced.
Further, the oxygen increasing device 50 includes a connecting pipe 52, an oxygen inlet pipe 53 and an oxygen outlet pipe 54 are arranged in the circumferential direction of the connecting pipe 52, one end of the oxygen inlet pipe 53 is communicated with the pipe cavity of the connecting pipe 52, the other end of the oxygen inlet pipe is connected with an oxygen source, one end of the oxygen outlet pipe 54 is communicated with the pipe cavity of the connecting pipe 52, the other end of the oxygen outlet pipe is closed, and an air outlet 51 is arranged on the pipe wall of the oxygen outlet pipe 54. In specific implementation, air is introduced into the cavity of the connecting pipe 52 through the oxygen inlet pipe 53, enters the oxygen outlet pipe 54 through the cavity of the connecting pipe 52, and is discharged through the air outlet 51 to form an upward airflow.
Further, the oxygen inlet pipe 53 and the oxygen outlet pipe 54 are uniformly arranged along the circumferential direction of the connecting pipe 52. In specific implementation, the oxygen outlet pipes 54 are arranged along the circumferential direction of the connecting pipe 52, so that the air outlets 51 are uniformly arranged in the area below the fire grate 40, and the upward air flow in the area below the whole fire grate 40 is ensured to be uniform.
Further, the upper side pipe wall of the oxygen outlet pipe 54 is provided with air outlets 51 at regular intervals, and the air outlet direction of the air outlets 51 points to the direction of the fire grate 40. The air outlet 51 is arranged on the upper pipe wall of the oxygen outlet pipe 54, and air is blown out from bottom to top, so that the purposes of blowing oxygen into the hearth and impacting ash are achieved.
Further, the connection pipe 52 is a closed pipe with a regular polygon shape, the oxygen inlet pipe 53 is disposed on one side of the connection pipe 52, and the oxygen outlet pipes 54 are plural and disposed corresponding to the sides of the connection pipe 52. Preferably, the connection pipe 52 has a regular octagon shape, the oxygen inlet pipe 53 is disposed on one side of the connection pipe 52, and the oxygen outlet pipes 54 have seven pieces and are disposed corresponding to the other seven sides of the connection pipe 52. During the concrete implementation, can select the structure of connecting pipe 52 according to the diameter size of furnace 10, if the diameter size of furnace 10 is great, then connecting pipe 52 can be selected to regular dodecagon, regular hexadecagon etc. and the quantity of the play oxygen pipe 54 of arranging like this is many, and the mutual interval between gas outlet 51 is little, and the air-blowing is more even. If the diameter of the furnace 10 is small, the connecting pipe 52 can be selected to be a regular hexagon, a regular octagon, etc., and only a small number of oxygen outlet pipes 54 are needed to meet the requirement of air blowing.
The working principle of the invention is as follows: when the hot blast stove works, air is blown into the oxygen inlet pipe 53 through the air blower, enters the cavity of the connecting pipe 52, directly enters the oxygen outlet pipe 54, is discharged through the air outlet 51 on the oxygen outlet pipe 54, and forms an upward airflow through the air discharged from the air outlet 51, so that ash is impacted, the ash is turned over, and the incompletely combusted fuel in the ash is continuously combusted.
Claims (6)
1. A floated hot-blast furnace oxygenation system which characterized in that: the furnace comprises a stirring unit (20) and an ash discharging unit (30) which are arranged in a furnace hearth (10), a fire grate (40) fixed in the furnace hearth (10) is arranged between the stirring unit (20) and the ash discharging unit (30), an oxygen increasing device (50) is arranged between the ash discharging unit (30) and the fire grate (40), an air outlet (51) is formed in the oxygen increasing device (50), and the air outlet direction of the air outlet (51) points to the direction of the fire grate (40).
2. The suspension type hot blast stove oxygenation system of claim 1, characterized in that: the oxygen increasing device (50) comprises a connecting pipe (52), an oxygen inlet pipe (53) and an oxygen outlet pipe (54) are arranged on the circumferential direction of the connecting pipe (52), one end of the oxygen inlet pipe (53) is communicated with a pipe cavity of the connecting pipe (52), the other end of the oxygen inlet pipe is connected with an oxygen source, one end of the oxygen outlet pipe (54) is communicated with the pipe cavity of the connecting pipe (52), the other end of the oxygen outlet pipe is closed, and an air outlet (51) is formed in the pipe wall of the oxygen outlet pipe (54).
3. The suspension type hot blast stove oxygenation system of claim 2, characterized in that: the oxygen inlet pipes (53) and the oxygen outlet pipes (54) are uniformly arranged along the circumferential direction of the connecting pipe (52).
4. The suspension type hot blast stove oxygenation system of claim 2, characterized in that: the upper side pipe wall of the oxygen outlet pipe (54) is uniformly provided with air outlets (51) at intervals, and the air outlet direction of the air outlets (51) points to the direction of the fire grate (40).
5. The suspension type hot blast stove oxygenation system of claim 2, characterized in that: the connecting pipe (52) is a closed pipeline in the shape of a regular polygon, the oxygen inlet pipe (53) is arranged on one edge of the connecting pipe (52), and the oxygen outlet pipe (54) is provided with a plurality of pipes which are respectively arranged corresponding to the edges of the connecting pipe (52).
6. The suspension type hot blast stove oxygenation system of claim 5, characterized in that: the connecting pipe (52) is in a regular octagon shape, the oxygen inlet pipe (53) is arranged on one side of the connecting pipe (52), and the oxygen outlet pipe (54) is provided with seven oxygen outlets which are respectively arranged corresponding to the other seven sides of the connecting pipe (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814833.4A CN110553276A (en) | 2019-09-02 | 2019-09-02 | Suspension type hot blast stove oxygenation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814833.4A CN110553276A (en) | 2019-09-02 | 2019-09-02 | Suspension type hot blast stove oxygenation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553276A true CN110553276A (en) | 2019-12-10 |
Family
ID=68738541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910814833.4A Pending CN110553276A (en) | 2019-09-02 | 2019-09-02 | Suspension type hot blast stove oxygenation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110553276A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006200825A (en) * | 2005-01-20 | 2006-08-03 | Sunpot Co Ltd | Ligneous pellet combustion system |
| CN104296127A (en) * | 2014-09-24 | 2015-01-21 | 山东建筑大学 | Two-section type combustion device and method for biomass briquettes |
| CN205979738U (en) * | 2016-08-19 | 2017-02-22 | 陈国栋 | Biomass gasification furnace |
| CN208025535U (en) * | 2018-02-11 | 2018-10-30 | 溧阳正昌干燥设备有限公司 | Hot-blast stove automatic ash discharging device |
| CN109780548A (en) * | 2019-03-12 | 2019-05-21 | 重庆管利实业有限公司 | A kind of pyrolysis gasification furnace |
-
2019
- 2019-09-02 CN CN201910814833.4A patent/CN110553276A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006200825A (en) * | 2005-01-20 | 2006-08-03 | Sunpot Co Ltd | Ligneous pellet combustion system |
| CN104296127A (en) * | 2014-09-24 | 2015-01-21 | 山东建筑大学 | Two-section type combustion device and method for biomass briquettes |
| CN205979738U (en) * | 2016-08-19 | 2017-02-22 | 陈国栋 | Biomass gasification furnace |
| CN208025535U (en) * | 2018-02-11 | 2018-10-30 | 溧阳正昌干燥设备有限公司 | Hot-blast stove automatic ash discharging device |
| CN109780548A (en) * | 2019-03-12 | 2019-05-21 | 重庆管利实业有限公司 | A kind of pyrolysis gasification furnace |
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