CN206831478U - A kind of three CFBBs that nano silicon is prepared for combusting rice hull - Google Patents
A kind of three CFBBs that nano silicon is prepared for combusting rice hull Download PDFInfo
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- CN206831478U CN206831478U CN201720757238.8U CN201720757238U CN206831478U CN 206831478 U CN206831478 U CN 206831478U CN 201720757238 U CN201720757238 U CN 201720757238U CN 206831478 U CN206831478 U CN 206831478U
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- cyclone
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Abstract
A kind of three CFBBs that nano silicon is prepared for combusting rice hull, belong to nano silicon preparing technical field, purpose is further to improve the purity of amorphous nano silicon to realize, it includes burner hearth, primary cyclone, secondary cyclone and three-stage cyclone separator, the exhanst gas outlet of burner hearth is connected by the import of accelerating sections and primary cyclone, outlet at the top of primary cyclone is connected by the import of accelerating sections and secondary cyclone, outlet at the top of secondary cyclone is connected by the import of accelerating sections and three-stage cyclone separator, primary cyclone, the outlet of secondary cyclone and three-stage cyclone separator bottom is connected by feeding back device with burner hearth respectively；The primary cyclone, secondary cyclone and three-stage cyclone separator use circulation whirlwind separator；The rice husk that the utility model is used to burn pretreated prepares the amorphous nano silicon of high-purity.
Description
Technical field
The utility model belongs to nano silicon preparing technical field, and in particular to one kind is used for combusting rice hull preparation and received
Three CFBBs of rice silica.
Background technology
Silica is that one kind is widely used the promising chemical products of tool, is all played extremely in chemical industry, medicine and other fields
Important effect；Rice husk is the preferable natural material for preparing silica, and it is one to prepare nano silicon using combusting rice hull
Kind is efficient, the biomass transformation technology of cleaning, but due to some alkali metal impurities in rice husk be present, with the liter of ignition temperature
Height, silica chemically react with alkali metal impurity, hinder the further haptoreaction of internal organic carbon and air, finally
Cause carbon residue content in rice hull ash high, and lose the activity of its amorphous state, therefore, employ acid or hydrogen peroxide solution to rice
The scheme that shell is pre-processed, to remove the impurity for hindering combusting rice hull, after recycling burning in circulating fluid bed boiler pretreatment
Rice husk prepare armorphous nano silica, such as number of patent application：201511003904.0 application publication number：
Combustion technology of circulating fluidized disclosed in CN105423291A, the ninety-nine amorphous dioxy of purity percent can be made
SiClx, but still have centesimal residual carbon content, and two conventional cyclones are used, resistance reaches 2,000 five to three
KPa, resistance is too big, and air-introduced machine power consumption is high, and economy declines；This programme is to prepare dioxy to further reduce combusting rice hull
The residual carbon content of SiClx, improve the purity of amorphous silica and research and develop, meanwhile, isolation resistance is greatly reduced, improves fortune
Row economy.
The content of the invention
The purpose of this utility model is to realize the purity of further raising amorphous silica, reduces equipment operation
Resistance, there is provided a kind of three CFBBs that nano silicon is prepared for combusting rice hull, its technical scheme are as follows：
A kind of three CFBBs that nano silicon is prepared for combusting rice hull, it includes burner hearth, one-level is revolved
Wind separator, secondary cyclone and three-stage cyclone separator, the exhanst gas outlet of burner hearth pass through accelerating sections and one cyclonic point
Import from device is connected, and the outlet at the top of primary cyclone is connected by the import of accelerating sections and secondary cyclone,
Outlet at the top of secondary cyclone is connected by the import of accelerating sections and three-stage cyclone separator, primary cyclone,
The outlet of secondary cyclone and three-stage cyclone separator bottom is filled by feeding back device one, feeding back device two and feed back respectively
Put three to connect with burner hearth, primary cyclone, secondary cyclone and three-stage cyclone separator return all directly into burner hearth
Material, can guarantee that feed back is smooth；The primary cyclone, secondary cyclone and three-stage cyclone separator use circulation
Formula cyclone separator, the structure of circulation whirlwind separator is CN2577970Y by notification number, and entitled circulation whirlwind removes
The patent of dirt device discloses, and circulation whirlwind separator uses the structure of circumfluent cyclone, small with windage, separative efficiency
Or so the advantages of high, the pa of total windage about 1,800 of three separators, less than three conventional cyclones resistance sums
Half；The entrance connection of outlet and back-end ductwork at the top of three-stage cyclone separator, is provided with heated in back-end ductwork
Face, flue gas heat can not only be recycled, moreover it is possible to which flue-gas temperature is down to less than 150 degree；The outlet of back-end ductwork with
The entrance connection of sack cleaner, what the dust export of sack cleaner was discharged is exactly residual carbon content less than 0. 5 percent
Amorphous nano silicon.
The beneficial effects of the utility model are：Using stage high-effective loop structure, high rate cyclic adds the combustion of rice husk
The residence time is burnt, realizes pretreated rice husk completely burned, improves the purity of amorphous nano silicon to 9 percent
Ten nine points five；The windage of used cyclone separator is small, and separative efficiency is high, and it is reasonable that loop is set, and feed back is smooth, can realize into
One step improves the purity of amorphous nano silicon, and improves performance driving economy.
Brief description of the drawings：
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the schematic top plan view of burner hearth and cyclone separator part.
Embodiment：
Referring to Figures 1 and 2, a kind of three CFBBs that nano silicon is prepared for combusting rice hull, it is wrapped
Containing burner hearth 1, primary cyclone 2, secondary cyclone 3 and three-stage cyclone separator 4, the exhanst gas outlet of burner hearth 1 passes through
Accelerating sections is connected with the import of primary cyclone 2, and the outlet at the top of primary cyclone 2 is revolved by accelerating sections and two level
The import connection of wind separator 3, the outlet at the top of secondary cyclone 3 are entered by accelerating sections and three-stage cyclone separator 4
Mouth connection, the outlet of primary cyclone 2, secondary cyclone 3 and the bottom of three-stage cyclone separator 4 passes through feed back respectively
The 5-1 of device one, the 5-2 of feeding back device two and the 5-3 of feeding back device three connect with burner hearth 1, primary cyclone 2, two level whirlwind point
From device 3 and three-stage cyclone separator 4 all directly into burner hearth 1 feed back, can guarantee that feed back is smooth；The primary cyclone 2,
Secondary cyclone 3 and three-stage cyclone separator 4 use circulation whirlwind separator, the structure of circulation whirlwind separator
It is CN2577970Y by notification number, the patent of entitled circumfluent cyclone discloses, and circulation whirlwind separator uses
The structure of circumfluent cyclone, there is the advantages of windage is small, and separative efficiency is high, total windage about 1,008 of three separators
Hundred pas or so, the half of less than three conventional cyclones resistance sums；The outlet at the top of three-stage cyclone separator 4 with
The entrance connection of back-end ductwork 6, heating surface is provided with back-end ductwork 6, can not only be recycled flue gas heat, moreover it is possible to will
Flue-gas temperature is down to less than 150 degree；The outlet of back-end ductwork 6 is connected with the entrance of sack cleaner 7, sack cleaner 7
Dust export discharged be exactly residual carbon content be less than 0. 5 percent amorphous nano silicon.
The exhanst gas outlet of sack cleaner 7 is connected by air-introduced machine 8 with chimney 9, and clean gas is arranged to air.
Preferably, the dust export of sack cleaner 7 is connected with collection device 10, for collecting amorphous nano-silica
SiClx.
Claims (4)
1. a kind of three CFBBs that nano silicon is prepared for combusting rice hull, it includes burner hearth (1), one-level is revolved
Wind separator (2), secondary cyclone (3) and three-stage cyclone separator (4), the exhanst gas outlet of burner hearth (1) pass through accelerating sections
Import with primary cyclone (2) is connected, and the outlet at the top of primary cyclone (2) passes through accelerating sections and two level whirlwind
The import of separator (3) connects, and the outlet at the top of secondary cyclone (3) passes through accelerating sections and three-stage cyclone separator (4)
Import connection, it is characterised in that primary cyclone (2), secondary cyclone (3) and three-stage cyclone separator (4) bottom
The outlet in portion is connected by feeding back device one (5-1), feeding back device two (5-2) and feeding back device three (5-3) and burner hearth (1) respectively
It is logical；The primary cyclone (2), secondary cyclone (3) and three-stage cyclone separator (4) use circulation whirlwind
Separator, circulation whirlwind separator use the structure of circumfluent cyclone；Outlet at the top of three-stage cyclone separator (4)
It is connected with the entrance of back-end ductwork (6), the outlet of back-end ductwork (6) is connected with the entrance of sack cleaner (7).
2. a kind of three CFBBs that nano silicon is prepared for combusting rice hull as claimed in claim 1, it is special
Sign is that the exhanst gas outlet of sack cleaner (7) is connected by air-introduced machine (8) with chimney (9).
3. a kind of three CFBBs that nano silicon is prepared for combusting rice hull as claimed in claim 1, it is special
Sign is to be provided with heating surface in back-end ductwork (6).
4. a kind of three CFBBs that nano silicon is prepared for combusting rice hull as claimed in claim 1, it is special
Sign is that the dust export of sack cleaner (7) is connected with collection device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757238.8U CN206831478U (en) | 2017-06-27 | 2017-06-27 | A kind of three CFBBs that nano silicon is prepared for combusting rice hull |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757238.8U CN206831478U (en) | 2017-06-27 | 2017-06-27 | A kind of three CFBBs that nano silicon is prepared for combusting rice hull |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206831478U true CN206831478U (en) | 2018-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720757238.8U Withdrawn - After Issue CN206831478U (en) | 2017-06-27 | 2017-06-27 | A kind of three CFBBs that nano silicon is prepared for combusting rice hull |
Country Status (1)
| Country | Link |
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| CN (1) | CN206831478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120641A (en) * | 2017-06-27 | 2017-09-01 | 哈尔滨工业大学 | A kind of three CFBBs that nano silicon is prepared for combusting rice hull |
-
2017
- 2017-06-27 CN CN201720757238.8U patent/CN206831478U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120641A (en) * | 2017-06-27 | 2017-09-01 | 哈尔滨工业大学 | A kind of three CFBBs that nano silicon is prepared for combusting rice hull |
| CN107120641B (en) * | 2017-06-27 | 2023-06-06 | 哈尔滨工大华实环保科技有限公司 | Three-circulation fluidized bed boiler for preparing nano silicon dioxide by rice hull combustion |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200331 Address after: Room 812, Xiyangyang building, No.16, Wenku street, Nangang District, Harbin City, Heilongjiang Province Patentee after: Harbin Huashi environmental protection science and Technology Co.,Ltd. Address before: 150000 Harbin, Nangang, West District, large straight street, No. 92 Patentee before: HARBIN INSTITUTE OF TECHNOLOGY |
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| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180102 Effective date of abandoning: 20230606 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180102 Effective date of abandoning: 20230606 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |