CN206176347U - Suspension firing's chain furnace - Google Patents
Suspension firing's chain furnace Download PDFInfo
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- CN206176347U CN206176347U CN201620822384.XU CN201620822384U CN206176347U CN 206176347 U CN206176347 U CN 206176347U CN 201620822384 U CN201620822384 U CN 201620822384U CN 206176347 U CN206176347 U CN 206176347U
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- grate stoker
- furnace
- heater
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Abstract
The utility model belongs to the technical field of industrial boiler equipment, concretely relates to suspension firing's chain furnace, include furnace body, coal scuttle and locate traveling grate stoker in the furnace body, traveling grate stoker's below is equipped with a plurality of air inlet rooms, traveling grate stoker passes the coal feed point of furnace body and to the furnace body is inside to be extended, the coal scuttle is located the top of this traveling grate stoker outer end, its characterized in that: the upper portion of furnace body is equipped with the air exit, the air exit is connected with the backwind tube, air inlet room and peripheral hardware spout and are connected with the air -supply line between the wind device, the air -supply line with communicate with each other between the backwind tube, adopt the utility model discloses technical scheme's suspension firing's chain furnace can retrieve high -temperature gas and buggy in the chain furnace, has the characteristics that combustion efficiency is high.
Description
Technical field
This utility model belongs to Industrial Boiler equipment technical field, and in particular to a kind of chain furnace of suspension combustion.
Background technology
Chain grate boiler is referred to as chain furnace, and chain furnace is used for existing more than the 100 years history of commercial production, now I
State also has substantial amounts of factory using chain furnace as heat energy feeding mechanism.The efficiency of combustion of chain furnace generally than relatively low, causes chain
The reason for efficiency of furnace is low be：(1) discharging fume, excess air coefficient is big, and up to 2.5-3.5, this causes boiler exhaust gas heat loss very big.(2)
Boiler slag carbon content is high and coal leakage quantity is big, causes unburned carbon loss big.Can determine and caused by test and calculating
The reason for amount air coefficient is big has two：First, traveling-grate stoker cinder notch and furnace wall leak out.Second, the air distribution mode of chain furnace is
Cause the main reason that excess air coefficient is big；The main cause for causing mechanical heat loss big is boiler slag carbon content height and chain
Fire-gate leakage coal.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of high-temperature gas and coal dust that can be reclaimed in chain furnace
Suspension combustion chain furnace, the characteristics of with high combustion efficiency.
In order to solve above-mentioned technical problem, this utility model provides a kind of chain furnace of suspension combustion, including body of heater, coal bunker
And the traveling-grate stoker in the body of heater, the chain fire-gate lower section is provided with multiple inlet air plenums, and the traveling-grate stoker is worn
Cross the coal feed point of the body of heater and extend to the furnace interior, the coal bunker is located at the top of the traveling-grate stoker outer end, wherein,
The top of the body of heater is provided with exhaust outlet, and the exhaust outlet is connected with backwind tube, between the inlet air plenum and peripheral hardware air-jet device
Blast pipe is connected with, is communicated between the blast pipe and the backwind tube.
Using the beneficial effect of the chain furnace of the suspension combustion of above-mentioned technical proposal：The top of body of heater is provided with exhaust outlet, by
In furnace interior environment is for High Temperature High Pressure and quality of pc is very light, during fire coal, coal dust is in suspended state, High Temperature Gas
Body mixed coal powder is discharged together by exhaust outlet；Because exhaust outlet is connected with backwind tube, between inlet air plenum and peripheral hardware air-jet device
Blast pipe is connected with, is communicated between blast pipe and backwind tube, realize the recovery of high-temperature gas and coal dust, high-temperature gas leads to coal dust
Cross blast pipe and enter to inlet air plenum, be finally passed through chain fire-gate lower section, during coal cinder layer is blown into again so that coal cinder layer temperature is more
Height, burning more fully, while also ensure that the abundant burning of coal dust, is reused with coal dust using the burning of chain hearth layer and mutually tied
The compound combustion mode of conjunction, the more uniform coal of one side fineness ratio can burn more complete on traveling-grate stoker, on the other hand, coal
Powder is passed through in burner hearth carries out suspension combustion, and a large amount of coal dusts are suspended in stove chamber inner combustion, can make full use of the oxygen amount in burner hearth, from
And be to reduce excess air coefficient to create condition, reduce the purpose of heat loss due to exhaust gas.
Preferably, it is contemplated that the effectiveness communicated between blast pipe and backwind tube, the blast pipe with described time
Arm is provided between airduct.
Preferably, it is contemplated that due to coal seam be intended on traveling-grate stoker experience catch fire in time, stably burning, lime-ash
After-flame three phases, the oxygen needed for stable combustion phases is most, therefore both sides air system occurs in the air near traveling-grate stoker
Number is high, the characteristics of intermediate air coefficient is low, in order to more be guaranteed at stablizing the adequacy of the coal combustion of fired state, it is described enter
Air compartment is three, and the size of the air inlet of the inlet air plenum of centre is more than the size of the air inlet of two ends inlet air plenum.
Preferably, it is contemplated that the characteristics of air capacity needed for the coal combustion of middle part is larger, centre position is adjacent
The spacing being smaller than between the adjacent described inlet air plenum at two ends between the inlet air plenum.
Description of the drawings
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the structural representation of this utility model embodiment two.
Wherein：Body of heater 1；Coal bunker 2；Traveling-grate stoker 3；Inlet air plenum 4；Exhaust outlet 5；Backwind tube 6；Air-jet device 7；Blast pipe 8；
Arm 9；Drive shaft 10.
Specific embodiment
Technical solutions of the utility model are further illustrated with reference to the accompanying drawings and examples：
Embodiment one：
As shown in figure 1, a kind of chain furnace of suspension combustion, including body of heater 1, coal bunker 2 and the chain furnace in body of heater 1
Row 3, the lower section of traveling-grate stoker 3 is provided with multiple inlet air plenums 4, and traveling-grate stoker 3 passes through the coal feed point of body of heater 1 and prolongs to the inside of body of heater 1
Stretch, coal bunker 2 is located at the top of the outer end of traveling-grate stoker 3, wherein, the top of body of heater 1 is provided with exhaust outlet 5, and exhaust outlet 5 is connected with back
Airduct 6, is connected with blast pipe 8 between inlet air plenum 4 and peripheral hardware air-jet device 7, communicate between blast pipe 8 and backwind tube 6.Additionally,
In view of the effectiveness communicated between blast pipe 8 and backwind tube 6, arm 9 is provided between blast pipe 8 and backwind tube 6；In view of by
In coal seam be intended on traveling-grate stoker 3 experience catch fire in time, stably burning, lime-ash after-flame three phases, stable combustion phases institute
The oxygen for needing is most, therefore the characteristics of both sides air coefficient is high, and intermediate air coefficient is low occurs in the air near traveling-grate stoker 3,
In order to more be guaranteed at stablizing the adequacy of the coal combustion of fired state, inlet air plenum 4 is three, and the inlet air plenum 4 of centre
Size of the size of air inlet more than the air inlet of two ends inlet air plenum 4.
Embodiment two：
As shown in Figure 2, it is contemplated that the characteristics of air capacity needed for the coal combustion of middle part is larger, the adjacent air intake in centre position
The spacing being smaller than between the adjacent inlet air plenum 4 at two ends between room 4.
Coal bunker 2 is uniformly expelled to a certain amount of coal on traveling-grate stoker 3, and traveling-grate stoker 3 is under the drive of drive shaft 10
At the uniform velocity move into body of heater 1, the coal seam on traveling-grate stoker 3 is affected by high temperature in body of heater 1, it is real with reference to the air that inlet air plenum 4 is passed through
The burning in existing coal seam, can equally affect due to the excess air coefficient in body of heater 1 temperature in body of heater 1 in combustion process, protect
Demonstrate,prove also needs to reduce the air coefficient in body of heater 1 as far as possible while providing the oxygen of abundance for coal combustion, therefore in order to reduce stove
Impact of the air content to temperature in body of heater 1, chain is passed through by the way of high-temperature gas in recovery furnace by high-temperature gas in body 1
The lower section of fire grate 3, reduce further the clean-burning condition in coal seam, meanwhile, upper strata high-temperature gas is same in recovery body of heater 1
When, imperfect combustion coal dust also can together be discharged with high-temperature gas, again flow into body of heater 1 burning, be integrally improved
The efficiency of combustion in coal seam.
Above-described is only preferred implementation of the present utility model, it is noted that for those skilled in the art
For, on the premise of without departing from this utility model structure, some deformations and improvement can also be made, these should also be considered as this
The protection domain of utility model, these are all without the effect and practical applicability for affecting this utility model to implement.
Claims (2)
1. a kind of chain furnace of suspension combustion, including body of heater, coal bunker and the traveling-grate stoker in the body of heater, the chain
Multiple inlet air plenums are provided with below fire grate, the traveling-grate stoker passes through the coal feed point of the body of heater and prolongs to the furnace interior
Stretch, the coal bunker is located at the top of the traveling-grate stoker outer end, it is characterised in that：The top of the body of heater is provided with exhaust outlet, described
Exhaust outlet is connected with backwind tube, is connected with blast pipe between the inlet air plenum and peripheral hardware air-jet device, the blast pipe with it is described
Communicate between backwind tube, be provided with arm between the blast pipe and the backwind tube, the inlet air plenum is three, and centre is entered
Size of the size of the air inlet of air compartment more than the air inlet of two ends inlet air plenum.
2. the chain furnace of suspension combustion according to claim 1, it is characterised in that：The adjacent described inlet air plenum in centre position
Between the spacing being smaller than between the adjacent described inlet air plenum at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822384.XU CN206176347U (en) | 2016-07-29 | 2016-07-29 | Suspension firing's chain furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822384.XU CN206176347U (en) | 2016-07-29 | 2016-07-29 | Suspension firing's chain furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206176347U true CN206176347U (en) | 2017-05-17 |
Family
ID=58674634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620822384.XU Active CN206176347U (en) | 2016-07-29 | 2016-07-29 | Suspension firing's chain furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206176347U (en) |
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2016
- 2016-07-29 CN CN201620822384.XU patent/CN206176347U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180517 Address after: 100041 A-0328, 2 floor, 3 building, 30 Shixing street, Shijingshan District, Beijing. Patentee after: Middle energy-saving industrial Power Conservation, Ltd. Address before: 100082 maple blue international A block 906, 32 Xizhimen North Street, Xicheng District, Beijing. Patentee before: China energy saving (Beijing) Industrial Energy Efficiency Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |