CN208687717U - Thermoelectricity coal burning boiler loopback dust-extraction unit - Google Patents
Thermoelectricity coal burning boiler loopback dust-extraction unit Download PDFInfo
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- CN208687717U CN208687717U CN201821184933.0U CN201821184933U CN208687717U CN 208687717 U CN208687717 U CN 208687717U CN 201821184933 U CN201821184933 U CN 201821184933U CN 208687717 U CN208687717 U CN 208687717U
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- raw coal
- returning charge
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Abstract
The utility model discloses a kind of thermoelectricity coal burning boiler loopback dust-extraction units, it include: raw coal inlet, raw coal outlet, interim returning charge outlet, fluidization air import, returning charge import and returning charge outlet, raw coal cavity where raw coal inlet and raw coal outlet is connected to the fluidisation cavity where returning charge import and fluidization air import by a horizontal chamber, the returning charge entered from returning charge entrance fluidizes under the action of fluidization air, and through horizontal chamber, raw coal outlet enters in furnace, one diaphragm is set in raw coal cavity, will enter from raw coal inlet, the raw coal and fluidisation will be entered from returning charge import that raw coal outlet is fallen into furnace, through horizontal chamber, the returning charge that raw coal outlet imports in furnace is separated, at this time, diaphragm is used by the raw coal outlet at horizontal chamber end as returning charge outlet；The utility model efficiently solves the problems, such as fugitive dust when aqueous raw coal and returning charge mix in existing boiler loop back device.
Description
Technical field
The utility model relates to a kind of thermoelectricity coal burning boiler loopback dust-extraction units, belong to boiler loopback dedusting technology field.
Background technique
In commercial process, what thermoelectricity coal burning boiler loop back device was all made of is raw coal and returning charge in loop back device
It is mixed in Mixed Zone, tiny structure enters burner hearth in freely falling body plus furnace, mixes when the raw coal containing moisture content enters loop back device
When closing area, the returning charge (310 DEG C ~ 330 DEG C of powder, gas) for encountering high temperature will make moisture evaporation in raw material, generate ascending air, and
The returning charge dust of part is taken away, so that site environment deteriorates, is not normally functioning other equipment of surrounding, to operator's
Operation is made troubles, and is had some impact on to the body of operator and maintenance personal, system shutdown when serious.
Utility model content
Technical problem to be solved by the utility model is: a kind of thermoelectricity coal burning boiler loopback dust-extraction unit is provided, it is existing to solve
There is fugitive dust problem when aqueous raw coal and returning charge mix in boiler loop back device.
The technical solution of the utility model is: a kind of thermoelectricity coal burning boiler loopback dust-extraction unit, comprising: raw coal inlet, raw coal
Outlet, interim returning charge outlet, fluidization air import, returning charge import and returning charge outlet, wherein raw coal inlet and raw coal outlet are distinguished
The upper and lower side of loopback dust-extraction unit the same side is set, and returning charge import and fluidization air import are separately positioned on loopback dust-extraction unit
Raw coal cavity where other side top and the bottom, raw coal inlet and raw coal outlet and the stream where returning charge import and fluidization air import
Change cavity by a horizontal chamber connection, the returning charge entered from returning charge entrance fluidizes under the action of fluidization air, and through horizontal chamber, original
Coal export enters in furnace, and a diaphragm is arranged in raw coal cavity, will fall into furnace from raw coal inlet entrance, raw coal outlet
Raw coal and will from returning charge import enter fluidisation, through horizontal chamber, raw coal outlet import furnace in returning charge separate, at this point, water conservancy diversion
Partition is used by the raw coal outlet at horizontal chamber end as returning charge outlet.
Returning charge entrance location is lower than horizontal chamber height.
It is exported in fluidisation cavity bottom equipped with interim returning charge.
Fluidization air import is in tilted layout, and interim returning charge outlet is vertically arranged.
The utility model has the beneficial effects that compared with the prior art, the utility model boiler loopback dust-extraction unit, by
The diaphragm being arranged on boiler loopback dust-extraction unit has broken off the contact of room temperature raw coal with returning charge (310 DEG C ~ 330 DEG C of powder, gas)
Space effectively prevents the evaporation of raw coal moisture content when mixing in original Mixed Zone, and the speed to fall by raw coal itself will
Dust is brought into furnace, while returning charge (powder, gas) enters burner hearth at faster speed under the action of fluidization air, and in furnace
Under suction function, the ascending air because generating when raw coal and returning charge (powder, gas) contact is effectively avoided, creates one to scene
A good environment improves the continuous operation of surrounding devices and the operability of operator, maintenance personal；This is practical new
Type has many advantages, such as simple at low cost, structure, installation and easy to maintain.
The utility model can also be applied in other techniques for having fugitive dust, have good value for applications.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Description of symbols: 1 raw coal inlet, the outlet of 2 raw coal, 3 interim returning charges outlets, 4 fluidization air imports, 5 returning charges into
Mouthful, 6 diaphragms, 7 returning charges outlet, 8 horizontal chambers, 9 raw coal cavitys, 10 fluidisation cavitys.
Specific embodiment
With reference to the accompanying drawing and utility model is described further in specific embodiment:
With reference to Fig. 1, according to a kind of thermoelectricity coal burning boiler loopback dust-extraction unit of the utility model, comprising: raw coal inlet 1, raw coal
Outlet 2, interim returning charge outlet 3, fluidization air import 4, returning charge import 5 and returning charge outlet 7, wherein raw coal inlet 1 and raw coal go out
Mouth 2 is separately positioned on the upper and lower side of loopback dust-extraction unit the same side, and returning charge import 5 and fluidization air import 4 are separately positioned on back
Dust-extraction unit other side top and the bottom are sent, the raw coal cavity 9 and returning charge import 5 and fluidisation where raw coal inlet 1 and raw coal outlet 2 are empty
Fluidisation cavity 10 where gas import 4 is connected to by a horizontal chamber 8, and the returning charge that fluidisation cavity 10 is entered from returning charge import 5 is being flowed
It fluidizes under the action of change air, and enters in furnace through horizontal chamber 8, raw coal outlet 2, a diaphragm 6 is installed in raw coal cavity 9,
The raw coal and fluidisation will be entered from returning charge import 5, through horizontal chamber 8, original that 2 fall into furnace will be exported from the entrance of raw coal inlet 1, raw coal
The returning charge (powder, gas) that coal export 2 imports in furnace is separated, and is returned at this point, diaphragm 6 is used as by the raw coal outlet 2 at horizontal chamber end
Material outlet 7 uses.
Preferably, the installation site of diaphragm 6 is advisable with dividing equally two sides space, and 5 position of returning charge import is high lower than horizontal chamber 8
Degree, such returning charge can be fully fluidised in fluidisation cavity 10.Interim returning charge outlet 3 is installed in fluidisation 10 bottom of cavity, is returned
Doses can export 3 discharges when big by interim returning charge, it is preferable that fluidization air import 4 is in tilted layout, and interim returning charge outlet 3 is perpendicular
To arrangement, returning charge is avoided to fall at fluidization air import 4 as far as possible.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (4)
1. a kind of thermoelectricity coal burning boiler loopback dust-extraction unit, comprising: raw coal inlet (1), raw coal outlet (2), interim returning charge outlet
(3), fluidization air import (4), returning charge import (5) and returning charge outlet (7), wherein raw coal inlet (1) and raw coal export (2) respectively
The upper and lower side of loopback dust-extraction unit the same side is set, and returning charge import (5) and fluidization air import (4) are separately positioned on loopback and remove
Raw coal cavity (9) and returning charge import (5) and stream where dirt device other side top and the bottom, raw coal inlet (1) and raw coal outlet (2)
Fluidisation cavity (10) where changing air intlet (4) is connected to by a horizontal chamber (8), and the returning charge entered at returning charge import (5) exists
It fluidizes under the action of fluidization air, and enters in furnace through horizontal chamber (8), raw coal outlet (2), it is characterised in that: in raw coal cavity (9)
One diaphragm of interior setting (6) will enter from raw coal inlet (1), raw coal outlet (2) falls into the raw coal in furnace and will be from returning charge
Import (5) enters fluidisation, separates through the returning charge in horizontal chamber (8), raw coal outlet (2) importing furnace, at this point, diaphragm (6)
Raw coal outlet (2) by horizontal chamber end is used as returning charge outlet (7).
2. thermoelectricity coal burning boiler loopback dust-extraction unit according to claim 1, it is characterised in that: returning charge import (5) position is low
In horizontal chamber (8) height.
3. thermoelectricity coal burning boiler loopback dust-extraction unit according to claim 1, it is characterised in that: be equipped in fluidisation cavity bottom
Interim returning charge outlet (3).
4. thermoelectricity coal burning boiler loopback dust-extraction unit according to claim 1, it is characterised in that: fluidization air import (4) is inclined
Tiltedly arrangement, interim returning charge outlet (3) are vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821184933.0U CN208687717U (en) | 2018-07-25 | 2018-07-25 | Thermoelectricity coal burning boiler loopback dust-extraction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821184933.0U CN208687717U (en) | 2018-07-25 | 2018-07-25 | Thermoelectricity coal burning boiler loopback dust-extraction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208687717U true CN208687717U (en) | 2019-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821184933.0U Active CN208687717U (en) | 2018-07-25 | 2018-07-25 | Thermoelectricity coal burning boiler loopback dust-extraction unit |
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| CN (1) | CN208687717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355137A (en) * | 2021-06-10 | 2021-09-07 | 中国科学院工程热物理研究所 | Material returning device of circulating fluidized bed |
-
2018
- 2018-07-25 CN CN201821184933.0U patent/CN208687717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355137A (en) * | 2021-06-10 | 2021-09-07 | 中国科学院工程热物理研究所 | Material returning device of circulating fluidized bed |
| CN113355137B (en) * | 2021-06-10 | 2024-07-09 | 中国科学院工程热物理研究所 | Material returning device of circulating fluidized bed |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 208, Chuangye Road, Jinhua Street, Chishui City, Zunyi City, Guizhou Province 564700 Patentee after: Taisheng (Guizhou) Bamboo Resources Development Co.,Ltd. Address before: No. 90, Jinhua Chemical Road, Chishui City, Zunyi City, Guizhou Province, 564707 Patentee before: GUIZHOU CHITIANHUA PAPERS Co.,Ltd. |
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| CP03 | Change of name, title or address |