CN209622766U - A kind of coal burner - Google Patents
A kind of coal burner Download PDFInfo
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- CN209622766U CN209622766U CN201920070091.4U CN201920070091U CN209622766U CN 209622766 U CN209622766 U CN 209622766U CN 201920070091 U CN201920070091 U CN 201920070091U CN 209622766 U CN209622766 U CN 209622766U
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- air channel
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- air
- precombustion chamber
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Abstract
The utility model discloses in Thermal Energy and Power Engineering technical field, in particular to a kind of coal burner.The coal burner includes precombustion chamber, the inlet side of precombustion chamber is sequentially coaxially arranged with central air hose from inside to outside, First air channel, secondary air channel, tertiary air channel, the outer wall of precombustion chamber offers four wind channels, burning torch is plugged in central air hose, one end of burning torch is against precombustion chamber inlet side, other end is provided with igniter, deep or light ring is provided in First air channel, Flow restrictions are arranged in the air inlet in wind channel, the first arc swirl vane is provided in secondary air channel, the second arc swirl vane is provided in tertiary air channel, Flow restrictions are arranged in the air inlet in tertiary air channel, third arc swirl vane is provided on four wind channels.The utility model is structurally reasonable and burning is controllable.
Description
Technical field
The utility model relates to Thermal Energy and Power Engineering technical field, in particular to a kind of coal burner.
Background technique
For China's energy resource structure based on coal, current pulverized coal combustion is widely used in power boiler burning field,
Coal dust firing is insufficient, can generate the pollutant that nitrogen oxides, oxysulfide and dust etc. are harmful to the human body, and nitrogen oxides
Be one of main atmosphere pollution, be primarily referred to as NO and NO2, and coal dust burn at high temperature generation nitrogen oxides it is most of
For NO, the nitrogen oxides in atmosphere is the principal element to form photochemical fog, and is also the main source of PM2.5 particle,
One of the principal element of nationwide haze is formed, furthermore nitrogen oxides, which meets water, can be converted into nitric acid or nitrous acid, form acid
Rain corrodes building etc. and can be detrimental to health.Therefore a kind of new coal burner is needed
Utility model content
The purpose of the utility model is to provide a kind of structurally reasonable, burn controllable coal burner.
In order to realize above-mentioned purpose of utility model, the following technical solution that a kind of coal burner of the utility model uses:
The inlet side of a kind of coal burner, including precombustion chamber, precombustion chamber is sequentially coaxially arranged with centre wind from inside to outside
Pipe, First air channel, secondary air channel, tertiary air channel, the outer wall of precombustion chamber offer four wind channels, central air hose interpolation
It is connected to burning torch, against precombustion chamber inlet side, other end is provided with igniter for one end of burning torch, and First air channel is passed through
Coal dust is provided with deep or light ring in wind channel, and Flow restrictions are arranged in the air inlet in wind channel, is passed through in secondary air channel natural
Gas is provided with the first arc swirl vane in wind channel, and tertiary air channel is passed through air, the second arc shaped rotary is provided in wind channel
Blade is flowed, Flow restrictions are arranged in the air inlet in tertiary air channel, and four wind channels are passed through surrounding air, are provided with third in channel
Arc swirl vane.
The current-limiting apparatus includes circular baffle plate, and semi-circular recesses and circular groove, the circle are provided in circular baffle plate
The center of circle of shape baffle and wind channel side wall are hinged, and baffle can rotate in wind channel.It can be with Effective Regulation coal dust and air
Input.
The radius of the circular baffle plate is less than the diameter in wind channel.
The outlet in four wind channels is inclined nock, and nock is against boiler.It effectively prevent the cinder etc. of precombustion chamber
Impurity is mixed into four blockings that wind channel is caused in wind channel.
Compared with prior art, the utility model has the beneficial effects that:
1, the inlet side of precombustion chamber is sequentially coaxially arranged with central air hose from inside to outside, First air channel, secondary air channel,
Tertiary air channel, the outer wall of precombustion chamber offer four wind channels.Make coal dust that can reduce the row of nitrogen oxides with full combustion
It puts.
2, Flow restrictions are set on First air channel and tertiary air channel.The input of effective regulation coal dust and air,
Make its burning sufficiently, reduces the discharge of nitrogen oxides.
3, surrounding air is connected in four wind channels.The speed of surrounding air is higher than the speed of breeze airflow, can increase air-flow
Rigidity, prevent air-flow deflection, and coal dust can be held, prevent coal dust from separating from primary air and causing imperfect combustion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of current-limiting apparatus；
Fig. 3 is the scheme of installation of current-limiting apparatus.
Wherein, 1 central air hose, 11 burning torches, 12 igniters, 2 First air channels, 21 deep or light rings, 3 secondary air channels,
31 first arc swirl vanes, 4 tertiary air channels, 41 second arc swirl vanes, 5 four wind channels, 51 third arc eddy flows
Blade, 52 nocks, 6 boilers, 7 current-limiting apparatus, 71 semi-circular recesses, 72 circular grooves, 8 precombustion chambers.
Specific embodiment
With reference to embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Bright the utility model rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art
Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term "vertical", " outer peripheral surface "
Set relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation usually put
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively heavy
The property wanted.
In addition, the terms such as term "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly tilted.
It is not to indicate that the structure is had to fully horizontally if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical",
But it can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
As shown in Figure 1 to Figure 3, a kind of coal burner, including precombustion chamber 8, the inlet side of precombustion chamber 8 is from inside to outside successively
Coaxial sleeve is equipped with central air hose 1, and the outer wall in First air channel 2, secondary air channel 3, tertiary air channel 4, precombustion chamber 2 offers four
Secondary wind channel 5, is plugged with burning torch 11 in central air hose 1, and one end of burning torch 11 is against 8 inlet side of precombustion chamber, other end
It is provided with igniter 12, First air channel 2 is passed through coal dust, and deep or light ring 21 is provided in wind channel, and the air inlet in wind channel is set
It is equipped with current-limiting apparatus 7, natural gas is passed through in secondary air channel 3, the first arc swirl vane 31, tertiary air are provided in wind channel
Channel 4 is passed through air, and the second arc swirl vane 41 is provided in wind channel, and current limiting is arranged in the air inlet in tertiary air channel 4
Device 7, four wind channels 5 are passed through surrounding air, and 51 third arc swirl vanes, the outlet in four wind channels 5 are provided in channel
For inclined nock 52, for nock 52 against boiler 6, current-limiting apparatus 7 includes circular baffle plate, is provided in circular baffle plate semicircle recessed
Slot 71 and circular groove 72, the center of circle of circular baffle plate and wind channel side wall are hinged, and baffle can rotate in wind channel.
The specific work process and principle of the utility model: a kind of coal burner, including precombustion chamber 8, precombustion chamber 8 into
Mouth side is sequentially coaxially arranged with central air hose 1, First air channel 2, secondary air channel 3, tertiary air channel 4, pre-burning from inside to outside
The outer wall of room 2 offers four wind channels 5, is plugged with burning torch 11 in central air hose 1, and one end of burning torch 11 is against precombustion chamber
8 inlet sides, other end are provided with igniter 12, and First air channel 2 is passed through coal dust, and deep or light ring 21 is provided in wind channel,
Flow restrictions 7 are arranged in the air inlet in wind channel, are passed through natural gas in secondary air channel 3, the first arc is provided in wind channel
Swirl vane 31, tertiary air channel 4 are passed through air, and the second arc swirl vane 41 is provided in wind channel, tertiary air channel 4
Flow restrictions 7 are arranged in air inlet, and four wind channels 5 are passed through surrounding air, are provided with 51 third arc swirl vanes in channel, and four
The outlet in secondary wind channel 5 is inclined nock 52, and for nock 52 against boiler 6, current-limiting apparatus 7 includes circular baffle plate, circular baffle plate
On be provided with semi-circular recesses 71 and circular groove 72, the center of circle of circular baffle plate and wind channel side wall are hinged, and baffle can be in wind
It is rotated in channel.In use, first protruding into igniter 11 in precombustion chamber 8, connects secondary air channel 3 and access natural gas, connect
First air channel 2 is blown into coal dust, and the two mixing burns, then connects tertiary air channel 4, be blown into air-breathing, by turning
Dynamic current-limiting apparatus 7 adjusts the input of coal dust and air, then turns on four wind channels 5 on 8 outer wall of precombustion chamber, is blown into circumference
The speed of wind, surrounding air is higher than the speed of breeze airflow, can increase the rigidity of air-flow, prevents air-flow deflection, and can hold coal
Powder prevents coal dust from separating from primary air and causes imperfect combustion, and the outlet in four wind channels 5 is inclined nock
52, nock 52 prevents wind passway from blocking against boiler 6.It should be noted that inclined nock is directed toward boiler, inclination angle
Degree can be adjusted according to actual needs, and precombustion chamber and the structure structure size in wind channel be all can be according to practical life
It produces and needs and specific aim setting, however it is not limited to which a certain fixed dimension, furthermore precombustion chamber and air piping are connected and fixed mode
It is not limited to be socketed, it is last originally practical as long as being that by the fixed form of air piping and precombustion chamber being stably connected with
Novel middle pre-burning chamber enclosure, air piping, current-limiting apparatus are not limited to cast steel, other satisfactory metal materials, together
When pre-burning chamber liner use fireproof high-temperature resistant material, as long as the fireproof high-temperature resistant lining for meeting the utility model demand is suitable for
Property be applied to the utility model, the connection of current-limiting apparatus and air piping is not limited only to hingedly, guarantee circular baffle plate in air piping
It can relatively rotate.
Claims (4)
1. a kind of coal burner, it is characterised in that: including precombustion chamber, the inlet side of precombustion chamber is sequentially coaxially arranged from inside to outside
There is central air hose, First air channel, secondary air channel, tertiary air channel, the outer wall of precombustion chamber offers four wind channels, described
Burning torch is plugged in central air hose, against precombustion chamber inlet side, other end is provided with igniting dress for one end of the burning torch
It sets, is provided with deep or light ring in the First air channel, the air inlet in wind channel is arranged Flow restrictions, in the secondary air channel
Be provided with the first arc swirl vane, be provided with the second arc swirl vane in the tertiary air channel, tertiary air channel into
Flow restrictions are arranged in air port, are provided with third arc swirl vane on four wind channels.
2. a kind of coal burner according to claim 1, it is characterised in that: the current-limiting apparatus includes circular baffle plate,
Semi-circular recesses and circular groove are provided in circular baffle plate, the center of circle of the circular baffle plate and wind channel side wall are hinged, baffle
It can be rotated in wind channel.
3. a kind of coal burner according to claim 2, it is characterised in that: the radius of the circular baffle plate is logical less than wind
The diameter in road.
4. a kind of coal burner according to claim 1, it is characterised in that: the outlet in four wind channels is inclination
Nock, nock is against boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920070091.4U CN209622766U (en) | 2019-01-16 | 2019-01-16 | A kind of coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920070091.4U CN209622766U (en) | 2019-01-16 | 2019-01-16 | A kind of coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209622766U true CN209622766U (en) | 2019-11-12 |
Family
ID=68450087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920070091.4U Active CN209622766U (en) | 2019-01-16 | 2019-01-16 | A kind of coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209622766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992640A (en) * | 2022-05-23 | 2022-09-02 | 扬州市银焰机械有限公司 | Multi-channel mixed fuel combustor for rotary kiln |
-
2019
- 2019-01-16 CN CN201920070091.4U patent/CN209622766U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992640A (en) * | 2022-05-23 | 2022-09-02 | 扬州市银焰机械有限公司 | Multi-channel mixed fuel combustor for rotary kiln |
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