CN206831504U - Drying grate coal dust concurrent heating burner - Google Patents
Drying grate coal dust concurrent heating burner Download PDFInfo
- Publication number
- CN206831504U CN206831504U CN201720268327.6U CN201720268327U CN206831504U CN 206831504 U CN206831504 U CN 206831504U CN 201720268327 U CN201720268327 U CN 201720268327U CN 206831504 U CN206831504 U CN 206831504U
- Authority
- CN
- China
- Prior art keywords
- whirl deposite
- deposite tank
- coal
- inner cylinder
- wind
- 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.)
- Expired - Fee Related
Links
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a kind of drying grate coal dust concurrent heating burner, for introducing the fuel into kiln combustion zone, described drying grate concurrent heating burner includes shower nozzle, conduit is connected with described shower nozzle, conduit is used for the jet hole that fuel and combustion air are delivered to shower nozzle, characterized in that, the shower nozzle is made up of the Whirl deposite tank sleeve of coaxial package, Whirl deposite tank inner cylinder, coal wind inner cylinder and central air hose；Conduit includes Whirl deposite tank outer tube, Whirl deposite tank inner tube, coal airduct and the central air hose of coaxial package；Whirl deposite tank sleeve, Whirl deposite tank inner cylinder, coal wind inner cylinder are assembled by being connected seal of tube docking with Whirl deposite tank outer tube, Whirl deposite tank inner tube, coal airduct respectively, and the passage of annular space type is formed after assembled.The coal dust concurrent heating burner of the utility model structure improves the working environment of burner, from localized hyperthermia, then improves the service life of burner.
Description
Technical field
A kind of pellet drying grate concurrent heating burner, using coal dust as fuel.Needed for supplementing green-ball drying, preheating
Heat and form temperature flow field reasonably, flame profile, belong to grate-kiln pelletizing production Thermal Equipment technology
Field.
Background technology
Drying, the preheating of the pelletizing green-ball of grate kiln realize that drying grate concurrent heating burner is on drying grate
The key equipment of pellet drying and preheating technique, its performance directly affect the quality of finished pellet.
With the fast development of China's steel industry, there is fuel diversified development in the heat energy supply of drying grate in recent years
Situation.According to the fuel service condition of different manufacturers, pointedly design the concurrent heating burner of practicality, be industry development must
So require.
The utility model discloses a kind of concurrent heating burner for the drying grate Thermal Equipment using coal dust as fuel.Mainly solve
Common burner because of front end localized hyperthermia and service life is short, influences the problem of normal production.
The content of the invention
The purpose of this utility model is, the problem of overcoming burner quick abrasion, short life in hot environment, is burnt to improve
In the mouth life-span, reduce production cost, improve the quality of production, disclosing a kind of kiln tail drying grate concurrent heating burner, ensure from structure type
Homogeneous flame temperature, and extend the service life of burner.
To realize the purpose of this utility model, the technical scheme that uses for：Drying grate coal dust concurrent heating burner, for that will fire
Material is introduced in kiln combustion zone, and described drying grate concurrent heating burner includes shower nozzle, and conduit is connected with described shower nozzle, and conduit is used
In the jet hole that fuel and combustion air are delivered to shower nozzle, it is characterised in that the shower nozzle by coaxial package eddy flow windband
Cylinder, Whirl deposite tank inner cylinder, coal wind inner cylinder and central air hose composition；The Whirl deposite tank outer tube of conduit including coaxial package, Whirl deposite tank inner tube,
Coal airduct and central air hose；Whirl deposite tank sleeve, Whirl deposite tank inner cylinder, coal wind inner cylinder respectively with Whirl deposite tank outer tube, Whirl deposite tank inner tube, coal
Airduct is assembled by connecting seal of tube docking, and the passage of annular space type is formed after assembled.
Combustion air air intake passage is assemblied with described Whirl deposite tank outer tube, coal wind air intake is assemblied with Whirl deposite tank inner tube and is led to
Road, crosswind pipe is assemblied with coal airduct, and crosswind pipe is connected with the insertion of combustion air air intake passage.
The end face of the shower nozzle is concordant, and other end is stepped after being connected with conduit；Concordant one end end face is formed
The ejection end of fuel and air distribution, the stair-stepping other end are air intake and enter fuel end.
With forming contour stealth wind passage after Whirl deposite tank inner cylinder suit, Whirl deposite tank inner cylinder is set with Whirl deposite tank sleeve with coal wind inner cylinder
After form coal wind duct, coal wind inner cylinder forms centre wind and led to forming inner eddy flow wind duct, central air hose after central wind-tube suit
Road, center wind duct are built-in with ignition channel；Described contour stealth wind channel outlet section be gradual-enlargement type structure design, Whirl deposite tank
The outlet section of passage is tapering type structure design.
The Whirl deposite tank sleeve of each coaxial package of shower nozzle, Whirl deposite tank inner cylinder, coal wind inner cylinder axiality are less than 0.2mm.
The advantages of the utility model：
1st, the channel design of the utility model design, can form uniform temperature field and rational flame-shaped in combustion zone
Shape, the heat balance of green-ball drying and preheating is kept, combustion air is sufficiently mixed with fuel, homogenous combustion, eliminates collection high temperature
Area, make furnace temperature uniform.The working environment of burner is improved, from localized hyperthermia, then improves the service life of burner.
2nd, the axiality of each part of shower nozzle is strict controlled within 0.2mm, it is ensured that the rule of the flame profile of burner is complete
Property and stability.
3rd, inside and outside bispin flow structure, it is easier to which regulation obtains required flame profile and length.
Brief description of the drawings
Fig. 1 is head construction schematic diagram of the present utility model,
Fig. 2 is overall structure diagram of the present utility model.
Embodiment
The utility model is described in further detail with example below in conjunction with the accompanying drawings.
Illustrate structure of the present utility model with reference to accompanying drawing 1, Fig. 2：
Drying grate is with the shower nozzle A structures of coal dust concurrent heating burner from outside to inside by Whirl deposite tank sleeve 1, Whirl deposite tank inner cylinder 2, coal wind
Inner cylinder 3 and the coaxial package of central air hose 4 are formed；Whirl deposite tank sleeve 1, Whirl deposite tank inner cylinder 2, coal wind inner cylinder 3 pass through screwed pipe respectively
Whirl deposite tank outer tube 5, Whirl deposite tank inner tube 6, coal airduct 7 are coaxially connected with, forming annular space type passage contour stealth wind respectively after assembled leads to
Road, coal wind duct, inner eddy flow wind duct, central air hose form center wind duct, are built-in with ignition channel；On Whirl deposite tank outer tube 5
Combustion air air intake passage 51 is assemblied with, coal wind air intake passage 61 is assemblied with Whirl deposite tank inner tube 6, crosswind is assemblied with coal airduct 7
Pipe 71, crosswind pipe 71 are connected with the insertion of combustion air air intake passage 51.
The shower nozzle of this drying grate concurrent heating burner is made by heat resisting steel, and heat resisting steel passes through solution treatment Technology for Heating Processing, it is ensured that
Shower nozzle wearability under high temperature.To avoid burner from not burnt out by high-temperature flue gas, in the shower nozzle and conduit of burner contact flame portion
Leading portion pours refractory material, forms protective layer, can be in the characteristic such as high temperature resistance, anti-oxidant, anticorrosive under working environment.
External cyclone butterfly valve 511 is provided with combustion air air intake passage 51, crosswind butterfly valve is provided with crosswind pipe 71
711, external cyclone butterfly valve 511 and crosswind butterfly valve 711 are respectively used to adjust the air quantity of contour stealth wind and coal wind.
The operation principle of the utility model structure is：Fuel coal dust is carried from coal airduct 7 by air-flow and presses certain angle of flare
Outwards spray, at a relatively high momentum and the moment of momentum are transmitted to by the Whirl deposite tank of outer adjacent contour stealth wind passage, inner side inward eddy wind leads to
The Whirl deposite tank in road is mixed with the breeze airflow sprayed and is at full speed threadingly advanced, and the contour stealth wind beam projected with high speed meets.Outside
The insertion of Whirl deposite tank beam further enhancing the mixing of coal, wind（Secondary Air including surrounding）, and the diverging journey of adjustable flame
Degree, length, the thickness of flame can be adjusted on demand, reach the flame profile of needs.Center wind action is in center wind duct
Promote a small amount of coal dust and CO of core to burn, make burning more abundant, and play current stabilization.Due to this combustion mechanism
The high speed having with medial rotation, outflow wind, the burning of fuel are rapid, complete.
Claims (5)
1. drying grate coal dust concurrent heating burner, for introducing the fuel into kiln combustion zone, described drying grate concurrent heating burner bag
Shower nozzle is included, conduit is connected with described shower nozzle, conduit is used for the jet hole that fuel and combustion air are delivered to shower nozzle, and it is special
Sign is that the shower nozzle is made up of the Whirl deposite tank sleeve of coaxial package, Whirl deposite tank inner cylinder, coal wind inner cylinder and central air hose；Conduit
Whirl deposite tank outer tube, Whirl deposite tank inner tube, coal airduct and central air hose including coaxial package；Whirl deposite tank sleeve, Whirl deposite tank inner cylinder, coal
Wind inner cylinder is assembled by being connected seal of tube docking with Whirl deposite tank outer tube, Whirl deposite tank inner tube, coal airduct respectively, and annular space is formed after assembled
The passage of type.
2. drying grate according to claim 1 coal dust concurrent heating burner, it is characterised in that：Spelled on described Whirl deposite tank outer tube
Equipped with combustion air air intake passage, coal wind air intake passage is assemblied with Whirl deposite tank inner tube, crosswind pipe, crosswind pipe are assemblied with coal airduct
It is connected with the insertion of combustion air air intake passage.
3. drying grate according to claim 1 coal dust concurrent heating burner, it is characterised in that：The end face of the shower nozzle is put down
Together, it is stepped after other end is connected with conduit；Concordant one end end face forms the ejection end of fuel and air distribution, the ladder
The other end of shape is air intake and enters fuel end.
4. drying grate according to claim 1 coal dust concurrent heating burner, it is characterised in that：In Whirl deposite tank sleeve and Whirl deposite tank
Contour stealth wind passage is formed after jacket casing dress, Whirl deposite tank inner cylinder after coal wind inner cylinder suit with forming coal wind duct, and coal wind inner cylinder is with
Inner eddy flow wind duct is formed after heart air duct suit, central air hose forms center wind duct, and center wind duct is built-in with ignition channel；
Described contour stealth wind channel outlet section is the structure design of gradual-enlargement type, and the outlet section of Whirl deposite tank passage sets for tapering type structure
Meter.
5. drying grate according to claim 1 coal dust concurrent heating burner, it is characterised in that：The eddy flow of each coaxial package of shower nozzle
Windband cylinder, Whirl deposite tank inner cylinder, coal wind inner cylinder axiality are less than 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268327.6U CN206831504U (en) | 2017-03-20 | 2017-03-20 | Drying grate coal dust concurrent heating burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268327.6U CN206831504U (en) | 2017-03-20 | 2017-03-20 | Drying grate coal dust concurrent heating burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206831504U true CN206831504U (en) | 2018-01-02 |
Family
ID=60779446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720268327.6U Expired - Fee Related CN206831504U (en) | 2017-03-20 | 2017-03-20 | Drying grate coal dust concurrent heating burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206831504U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059534A (en) * | 2018-06-12 | 2018-12-21 | 湖北锋焰机电科技有限公司 | A kind of adjustable energy-efficient rotary kiln burner |
| CN112484026A (en) * | 2020-12-04 | 2021-03-12 | 鞍钢集团矿业有限公司 | Double-rotational-flow pulverized coal burner and chain grate with same |
| CN112481486A (en) * | 2020-12-04 | 2021-03-12 | 鞍钢集团矿业有限公司 | System and method for reducing nitrogen oxide discharge of chain grate-rotary kiln |
-
2017
- 2017-03-20 CN CN201720268327.6U patent/CN206831504U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059534A (en) * | 2018-06-12 | 2018-12-21 | 湖北锋焰机电科技有限公司 | A kind of adjustable energy-efficient rotary kiln burner |
| CN109059534B (en) * | 2018-06-12 | 2024-02-23 | 湖北锋焰机电科技有限公司 | Adjustable high-efficiency energy-saving rotary kiln burner |
| CN112484026A (en) * | 2020-12-04 | 2021-03-12 | 鞍钢集团矿业有限公司 | Double-rotational-flow pulverized coal burner and chain grate with same |
| CN112481486A (en) * | 2020-12-04 | 2021-03-12 | 鞍钢集团矿业有限公司 | System and method for reducing nitrogen oxide discharge of chain grate-rotary kiln |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201706487U (en) | Anthracite powdered coal burner for a rotary kiln | |
| CN206831504U (en) | Drying grate coal dust concurrent heating burner | |
| CN104595900B (en) | Low-nitrogen-oxide gas combustor and combustion method of combustor | |
| CN101694297A (en) | Forced-draft burner and method for regularizing side-combustion high-temperature preheated air of square-box furnace | |
| CN204704817U (en) | A kind of low nitrogen oxide gas burner | |
| CN205102123U (en) | Spray gun device for combustor | |
| CN107355786A (en) | The more level air-distributions of industrial combustion gas kiln are oxygen-enriched with burning burner special | |
| CN102297426A (en) | Hydrogen gas combustor | |
| CN207214040U (en) | A kind of integrated burner based on combustion gas annealing furnace | |
| CN106439801B (en) | A kind of reverse spray type bluff body vortex burner | |
| CN204987008U (en) | Bispin STREAMING low heat value gas combustion ware | |
| CN206669731U (en) | A kind of premixed high-speed jet burner | |
| CN207094614U (en) | Four-channel coal burner for cement kiln | |
| CN206257664U (en) | Reverse spray type bluff body vortex burner | |
| CN203464270U (en) | Novel two-cyclone oxygen-rich micro-oil ignition stable combustion coal powder combustor | |
| CN205957179U (en) | High -efficient helical fin self preheating -type nozzle | |
| CN105114954B (en) | Combustion device for multi-fuel premix swirl-flow combustion | |
| CN206001454U (en) | A kind of coal burner | |
| CN205119066U (en) | High combustion rate burner | |
| CN207751345U (en) | Rotary kiln adjustable burner | |
| CN102734796A (en) | Low-quality coal burner | |
| CN209484601U (en) | A kind of low NOx drainage burner of fuel gas with low heat value | |
| CN203744247U (en) | Spiral pulverized coal inlet center-backdraught type pulverized coal gasification burner | |
| CN207688121U (en) | A kind of burner | |
| CN206682926U (en) | Five-channel coal-powder combustor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20210320 |