CN206944132U - A kind of resistive connection slag biomass combustion machine - Google Patents
A kind of resistive connection slag biomass combustion machine Download PDFInfo
- Publication number
- CN206944132U CN206944132U CN201720561078.XU CN201720561078U CN206944132U CN 206944132 U CN206944132 U CN 206944132U CN 201720561078 U CN201720561078 U CN 201720561078U CN 206944132 U CN206944132 U CN 206944132U
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- China
- Prior art keywords
- burner hearth
- combustion machine
- biomass combustion
- resistive connection
- hearth
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Abstract
The utility model belongs to biomass burner field, and in particular to a kind of resistive connection slag biomass combustion machine, including feed bin, feeder, First air entrance, fire grate, burner hearth, Secondary Air entrance and crater, feed bin is by feeder to burner hearth feeding；Fire grate is inside burner hearth and below burner hearth；First air entrance is communicated in burner hearth, and below fire grate；Secondary Air entrance is located on hearth wall and is located at upper furnace；Crater is located above burner hearth on hearth wall；Also include overfire air jet, overfire air jet includes ventilation duct, and ventilation duct is installed on hearth wall, and is laid along the short transverse of burner hearth, and one end of ventilation duct is communicated in Secondary Air entrance, and the other end is provided with closed head；Simultaneously several equally distributed exhaust vents are additionally provided with ventilation duct.It can effectively facilitate burning, reduce outlet slagging amount, and the service life of biomass combustion machine is effectively ensured.
Description
Technical field
The utility model belongs to biomass burner field, and in particular to a kind of resistive connection slag biomass combustion machine.
Background technology
At present, the research of biomass combustion machine abroad is relatively more, but mainly with the grain forming combustor of wooden class
Based on, species is single, and China is large agricultural country, and the biomass energy of stalk is relatively more, biomass combustion in the market
The shortcomings that machine generally existing crater slagging is serious.
In view of the above-mentioned problems of the prior art, reduced in the prior art using Secondary Air promotion solid phase combustion is passed through
The problem of crater slagging, but the problem of air quantity and Secondary Air skewness due to Secondary Air so that the secondary combustion of solid phase
It is not high to burn efficiency.
Utility model content
The utility model provides a kind of resistive connection slag biomass combustion machine, and it can effectively facilitate burning, reduces outlet slagging amount,
The service life of biomass combustion machine is effectively ensured.
To realize above-mentioned technical purpose, the concrete technical scheme that the utility model is taken is a kind of resistive connection slag biomass fuel
Burning machine, including feed bin, feeder, First air entrance, fire grate, burner hearth, Secondary Air entrance and crater, feed bin pass through feeder
To burner hearth feeding；Fire grate is inside burner hearth and below burner hearth；First air entrance is communicated in burner hearth, and under fire grate
Side；Secondary Air entrance is located on hearth wall and is located at upper furnace；Crater is located above burner hearth on hearth wall；Also
Including overfire air jet, overfire air jet includes ventilation duct, and ventilation duct is installed on hearth wall, and along the short transverse cloth of burner hearth
If；And one end of ventilation duct is communicated in Secondary Air entrance, the other end is provided with closed head；Simultaneously several are additionally provided with ventilation duct
Equally distributed exhaust vent.
As the improved technical scheme of the utility model, closed head is cap-like structure.
As the improved technical scheme of the utility model, overfire air jet is high temperature resistant stainless steel material.
As the improved technical scheme of the utility model, in addition to eddy flow deflection plate, eddy flow deflection plate is with parallel to burner hearth
The mode of cross section is arranged in burner hearth stage casing；And the center of eddy flow deflection plate is provided with through hole.
As the improved technical scheme of the utility model, the cross section of through hole is into circular cone structure, and through hole large scale
One end towards burner hearth bottom.
As the improved technical scheme of the utility model, the diameter of through hole is 1 with the length ratio of burner hearth cross section:2.
As the improved technical scheme of the utility model, in addition to several are laid in burner hearth the temperature at different height
Sensor.
As the improved technical scheme of the utility model, in addition to several air measuring instrument, air measuring instrument set secondary
Wind porch.
As the improved technical scheme of the utility model, fire grate is hollow tubular structure prepared by high temperature resistant stainless steel.
Beneficial effect
The utility model improve secondary blast changing the vaporific nozzle arrangements of Secondary Air by way of with air-supply air quantity
Distribution so that Secondary Air forms vaporific air-supply, allows air to be sufficiently mixed burning with biomass fuel, improves biomass fuel
Efficiency of combustion；Meanwhile equally distributed Secondary Air can force down furnace flame, crater temperature is reduced, improves combustor resistive connection slag
Property；
Eddy flow spoiler is set so that is layered as solid phase combustion room according to the physical state of biomass in burner hearth, gas phase is fired
Burn room and burn combustion chamber, specifically the afterbody in gas-phase combustion room employs eddy flow spoiler, and increase fuel is in burner hearth
Residence time, make burning more abundant；
The temperature sensor that the central control panel connection that can be set by outside is distributed in burner hearth diverse location is supervised in real time
In-furnace temperature distribution is surveyed, and Secondary Air air quantity is automatically adjusted, makes uniformity of temperature profile in burner hearth, reduces in stove and goes out fire
The fluxing power of mouth；
To sum up, the plant automation degree is high, and anti-slagging properties are obvious, can promote the use of；It is simple in construction, advantageously reduce
Cost, it is easy to accomplish.
Brief description of the drawings
The structural representation of Fig. 1 overfire air jets；
Biomass combustion machine structural representation in Fig. 2 the application；
In figure：1st, feed bin；2nd, feeder；3rd, First air entrance；4th, solid phase combustion room；5th, gas-phase combustion room；6th, burn
Burn room；7th, eddy flow deflection plate；8th, crater；9th, Secondary Air entrance；10th, fire grate；11st, closed head；12nd, ventilation duct；13rd, air-out
Hole.
Embodiment
To make the purpose of the utility model embodiment and technical scheme clearer, implement below in conjunction with the utility model
The accompanying drawing of example, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, described embodiment
It is part of the embodiment of the present utility model, rather than whole embodiments.Based on described embodiment of the present utility model,
The every other embodiment that those of ordinary skill in the art are obtained on the premise of without creative work, belongs to this practicality
Novel protected scope.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein（Including technology art
Language and scientific terminology）With the general understanding identical meaning with the those of ordinary skill in the utility model art.Also
It should be understood that those terms defined in such as general dictionary should be understood that with the context of prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the implication of idealization or overly formal.
The implication of " inside and outside " described in the utility model is referred to relative to equipment itself, inside sensing equipment
Direction be interior, otherwise is outer, rather than the specific restriction to equipment mechanism of the present utility model.
The implication of " connection " described in the utility model can be between part to be directly connected to can also be between part
Pass through being indirectly connected with for other parts.
A kind of resistive connection slag biomass combustion machine as shown in Figure 2, including feed bin 1, feeder 2, First air entrance 3, fire grate
10th, burner hearth, Secondary Air entrance 9 and crater 8, feed bin 1 is by feeder 2 to burner hearth feeding；Fire grate 10 is inside burner hearth
And below burner hearth（Fire grate 10 is high temperature resistant stainless steel hollow pipeline in the application；It is passed through when in use to the pipeline of fire grate
Recirculated cooling water reduces fire grate temperature to reduce fire grate slagging；The both ends of hollow pipeline are communicated in external water source, current during use
Circulating between water source, hollow pipeline can be realized under the power that outside provides；In order to more save the energy, external water
Source may connect to the heating combined equipments such as boiler）；First air entrance 3 is communicated in burner hearth, and positioned at the lower section of fire grate 10；Secondary Air entrance 9
On hearth wall and it is located at upper furnace；Crater 8 is located above burner hearth on hearth wall；Also include Secondary Air to spray
Mouth（As shown in Figure 1）, overfire air jet includes ventilation duct, and ventilation duct 12 is installed on hearth wall, and along the short transverse of burner hearth
Lay, and one end of ventilation duct is communicated in Secondary Air entrance 9（I.e. the air intake vent of ventilation duct is in the side wall of ventilation duct；
Ventilation duct can be set to L-type, and L-type short end is communicated in Secondary Air entrance 9）, the other end is provided with closed head 11；Lead to simultaneously
Several equally distributed exhaust vents 13 are additionally provided with airduct, in order to ensure Secondary Air can stablize conveying and do not easily cause stifled
Plug or resistance are excessive, and the diameter of exhaust vent 13 is not more than 4mm, preferably 2mm；Wherein, closed head 11 is cap-like structure.Can also
Overfire air jet is described as into mushroom head, specific effect is：Secondary Air is by that can form vaporific send after overfire air jet
Wind, it can both allow air to be sufficiently mixed burning with bio-fuel, flame temperature, slagging prevention can be reduced again；During concrete application,
According to the state of biomass combustion, burner hearth is divided into solid phase combustion room 4, gas-phase combustion room 5, burns the cell structure of combustion chamber 6 three, can
Secondary Air entrance 9 is uniformly laid in the top of gas-phase combustion room 5, with burning in combustion chamber 6, Secondary Air can further be entered
Mouth 9 is divided into three layers from top to bottom, and each layer is evenly arranged three vaporific nozzles of Secondary Air；
Preferably, overfire air jet is high temperature resistant stainless steel material.
Preferably, in addition to eddy flow deflection plate 7, eddy flow deflection plate 7 are arranged in stove in a manner of parallel to burner hearth cross section
Thorax stage casing；And the center of eddy flow deflection plate 7 is provided with through hole；The cross section of through hole is into circular cone structure, and through hole is big
One end of size is towards burner hearth bottom；During specific design, the diameter of through hole is 1 with the length ratio of burner hearth cross section：2, purpose exists
Combustion chamber 6 is burnt in enabling eddy flow to rest on for more time, the excessive combustion efficiency of through hole is undesirable, and through hole is too small, can not generate
Stablize effective eddy flow：The afterbody of gas-phase combustion room 5 employs cyclone structure, and high-temperature combustion product and the fuel gas not burnt exist
This eddy flow mixed combustion, can both reduce gas incomplete combustion heat loss, flame can be made no longer to sweep along carbon granule again.
As the improved technical scheme of the utility model, each air inlet design air flow measuring instrument is additionally included in；In each burning
Room each point design temperature sensor；Central control panel is installed outside stove, temperature sensor and air measuring instrument are connected to, for showing
Show in-furnace temperature distribution and air force, in-furnace temperature is monitored by temperature sensor, and Secondary Air air quantity is carried out
Automatically adjust, make uniformity of temperature profile in burner hearth, burning reaches optimal, and reduces in stove and the fluxing power of crater 8.
Another object of the present utility model is to provide a kind of application method of resistive connection slag biomass combustion machine, including as follows
Step, Step 1: the feeding into burner hearth by feeder 2 of feed bin 1, while First air entrance 3 is blown into burner hearth, the speed of feeding
Spend for 0.5kg/min, air supply velocity 13-34m/s, air quantity 6-13m3/min；Step 2: secondary blast mouth is sent into burner hearth
Wind；Step 3: the temperature at temperature sensor detection burner hearth diverse location, air measuring instrument detect the wind at Secondary Air entrance 9
Amount, the speed for controlling secondary blast is 6-12m/s, air quantity 2-6m3/min.
It is specifically：Biomass is poured into feed bin 1 during including starting, and is entered by feeder 2 in burner hearth, and First air is from one
Secondary wind entrance 3 enters.Biomass fuel burns in solid phase combustion room 4 first during burning, and the volatile matter of precipitation is in gas-phase combustion
Burnt in room 5, fuel gas forms eddy flow by eddy flow deflection plate 7, into combustion chamber 6 is burnt, due to eddy flow deflection plate 7 be present
Residence time of the combustible in burner hearth is added, combustible is more fully mixed with air, burning is more complete；When burning
When flame temperature in combustion chamber 6 is too high, easily melting produces slagging to a small amount of winged particle of ash in combustion chamber 6 is burnt, now root
According to each point temperature measured, the Secondary Air air quantity sprayed at Secondary Air entrance 9 is automatically adjusted, flame temperature is reduced so as to drop
Low fluxing power；The hollow pipeline of further oriented fire grate, which is passed through recirculated cooling water, reduces fire grate temperature to reduce fire grate slagging.
The utility model can effectively reduce the cigarette temperature at crater 8, reduce the winged particle of ash caused by too high flame temperature
Melting slagging, so as to effectively reduce crater 8 fluxing power.
Each point temperature feedback automatically adjusts air quantity to control panel in temperature sensor monitors burner hearth, makes temperature field in burner hearth
Distribution is more uniform, improves efficiency of combustion；
Temperature sensor can automatically adjust air quantity according to the temperature feedback of burner hearth each point to control panel, reduce too high
Flame temperature is to reduce fluxing power.
Embodiment of the present utility model is these are only, its description is more specific and detailed, but can not therefore understand
For the limitation to the utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, do not taking off
On the premise of conceiving from the utility model, various modifications and improvements can be made, these belong to protection of the present utility model
Scope.
Claims (9)
1. a kind of resistive connection slag biomass combustion machine, including feed bin, feeder, First air entrance, fire grate, burner hearth, Secondary Air entrance
And crater, feed bin is by feeder to burner hearth feeding；Fire grate is inside burner hearth and below burner hearth；First air entrance
Burner hearth is communicated in, and below fire grate；Secondary Air entrance is located on hearth wall and is located at upper furnace；Crater is located at burner hearth
On wall, and above burner hearth；Characterized in that, also including overfire air jet, overfire air jet includes ventilation duct；Ventilation duct is pacified
Laid loaded on hearth wall, and along the short transverse of burner hearth；And one end of ventilation duct is communicated in Secondary Air entrance, the other end is set
There is closed head；Simultaneously several equally distributed exhaust vents are additionally provided with ventilation duct.
2. a kind of resistive connection slag biomass combustion machine according to claim 1, it is characterised in that closed head is cap-like structure.
3. a kind of resistive connection slag biomass combustion machine according to claim 1, it is characterised in that overfire air jet is high temperature resistant
Stainless steel.
A kind of 4. resistive connection slag biomass combustion machine according to claim 1, it is characterised in that also including eddy flow deflection plate,
Eddy flow deflection plate is arranged in burner hearth stage casing in a manner of parallel to burner hearth cross section；And the center of eddy flow deflection plate is provided with
Through hole.
5. a kind of resistive connection slag biomass combustion machine according to claim 4, it is characterised in that the cross section of through hole is into circular cone
Platform structure, and the large-sized one end of through hole is towards burner hearth bottom.
6. a kind of resistive connection slag biomass combustion machine according to claim 4, it is characterised in that the diameter of through hole is horizontal with burner hearth
The length ratio in section is 1:2.
7. a kind of resistive connection slag biomass combustion machine according to claim 1, it is characterised in that be also laid in including several
Temperature sensor in burner hearth at different height.
8. a kind of resistive connection slag biomass combustion machine according to claim 1, it is characterised in that also surveyed including several air quantity
Instrument is measured, air measuring instrument sets Secondary Air porch.
9. a kind of resistive connection slag biomass combustion machine according to claim 1, it is characterised in that fire grate is high temperature resistant stainless steel
The hollow tubular structure of preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720561078.XU CN206944132U (en) | 2017-05-19 | 2017-05-19 | A kind of resistive connection slag biomass combustion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720561078.XU CN206944132U (en) | 2017-05-19 | 2017-05-19 | A kind of resistive connection slag biomass combustion machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206944132U true CN206944132U (en) | 2018-01-30 |
Family
ID=61360935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720561078.XU Expired - Fee Related CN206944132U (en) | 2017-05-19 | 2017-05-19 | A kind of resistive connection slag biomass combustion machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206944132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062199A (en) * | 2017-05-19 | 2017-08-18 | 中国矿业大学 | A kind of resistive connection slag biomass combustion machine and its application method |
-
2017
- 2017-05-19 CN CN201720561078.XU patent/CN206944132U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062199A (en) * | 2017-05-19 | 2017-08-18 | 中国矿业大学 | A kind of resistive connection slag biomass combustion machine and its application method |
| CN107062199B (en) * | 2017-05-19 | 2023-12-05 | 中国矿业大学 | Anti-slagging biomass burner and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |