CN205461701U - Kiln tail desulphurization unit - Google Patents
Kiln tail desulphurization unit Download PDFInfo
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- CN205461701U CN205461701U CN201620033304.2U CN201620033304U CN205461701U CN 205461701 U CN205461701 U CN 205461701U CN 201620033304 U CN201620033304 U CN 201620033304U CN 205461701 U CN205461701 U CN 205461701U
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- shaped pipeline
- kiln tail
- dore furnace
- venturi tube
- air outlet
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Abstract
(B /) kiln tail desulphurization unit, including two second grade whirlwind section of thick bamboos, the total air -out pipeline of dore furnace and pre -heater, set up Y venturi tube way between two second grade whirlwind section of thick bamboos and dore furnace, the Y venturi tube says that the import of bottom and the gooseneck of dore furnace export link to each other, the Y venturi tube says that two exports at top are continuous with the play tuber pipe of two second grade whirlwind section of thick bamboos respectively, the Y venturi tube says that the upper end of straight tube is equipped with the high temperature flap valve, the Y venturi tube says that the lower extreme of straight tube is equipped with an air outlet, this air outlet links to each other through horizontal pipeline and the total air -out pipeline of pre -heater, and be equipped with the high temperature push -pull valve on the horizontal pipeline.
Description
Technical field
This utility model relates to a kind of desulfurizer, is specifically related to a kind of kiln tail desulfurizer of new type nonaqueous cement production line.
Background technology
American-European countries's cement production enterprise is to SO2The concern of discharge is early than Chinese Enterprise.According to GB4915--2004 (cement industry atmosphere pollutants emission standards " regulation, rise on January 1st, 1, the SO in existing cement kiln and the grinding integrated aiutage of kiln2: the highest permission concentration of emission is 200mg/m3, unit product discharge capacity must not exceed 0.6kg/t.China numerous cement production enterprise SO2Emission reduction tasks is the most arduous, the annual SO of some enterprises2Charges for disposing pollutants are up to millions of unit.Cement producing line reduces SO2The measure of discharge is a lot, is broadly divided into three classes: the SO of cement producing line self2Remove, change cement production process and take extra SO2Removing sulfuldioxide.As it was previously stated, quality coal in cement kiln systems exists suitable condition can remove SO2, removal efficiency has much relations with the existing forms of sulfur in raw material sulfurbased NPK, raw material.If raw mill uses preheater waste gas to make to dry thermal source simultaneously, the SO of meeting removing 50%～70% further2.From the point of view of technological angle, control CO, O of clinkering zone2Content and flame profile advantageously reduce SO2Discharge.Feed change sulfur content and regulation sulfurbased NPK all can reduce SO2Discharge.
The main adoptable desulfurization technology of new type nonaqueous cement production line has at present: dry reactant insufflation, hot raw material insufflation, spray dry desulfurization method, wet desulfurization methods, kiln tail spray ammonia process.But it is big all to there is investment in these technology, the shortcomings such as operating cost is high.
Utility model content
In order to overcome the defect of prior art, this utility model provides a kind of kiln tail desulfurizer of new type nonaqueous cement production line.
Based on above-mentioned purpose, this utility model adopts the following technical scheme that:
Kiln tail desulfurizer, including two two grades of cyclone cylinders, dore furnace and the total wind pipe of preheater, at two two grades, Y-shaped pipeline is set between cyclone cylinder and dore furnace, import bottom Y-shaped pipeline is connected with the gooseneck of decomposition furnace outlet, the discharge pipe of respectively with two two grades of cyclone cylinders of two outlets at Y-shaped pipeline top is connected, the upper end of Y-shaped pipeline straight tube is provided with high-temperature flap valve, the lower end of Y-shaped pipeline straight tube is provided with an air outlet, this air outlet is connected by horizontal pipe wind pipe total with preheater, and horizontal pipe is provided with high temperature gate valve.
Kiln tail desulfurizer of the present utility model specifically refers to install additional level desulfurization pipeline on preheater wind pipe, at two two grades, Y-shaped pipeline is set between cyclone cylinder and dore furnace, the lower end of Y-shaped pipeline straight tube is provided with an air outlet, this air outlet is connected with preheater wind pipe by horizontal pipe, open high-temperature flap valve, draw the discharge pipe that the flue gas containing CaO enters two grades of cyclone cylinders from dore furnace gooseneck, with the SO in air-out inner tube smoke2Reaction generates CaSO3, according to kiln tail chimney SO2Emissions data in real time the high-temperature flap valve on desulfuration pipeline is adjusted, as high-temperature flap valve standard-sized sheet kiln tail chimney SO2Concentration of emission to be exceeded standard time, open high temperature gate valve, flue gas containing CaO enters in the total wind pipe of preheater, residue SO in flue gas in wind pipe total with preheater2Reaction generates CaSO3, final guarantee kiln tail chimney SO2Concentration of emission up to standard.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model；
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, kiln tail desulfurizer, including two two grades of cyclone cylinders 2, dore furnace 1 and the total wind pipe of preheater 4, between two two grades of cyclone cylinders 2 and dore furnace 1, Y-shaped pipeline 3 is set, the gooseneck 11 that import bottom Y-shaped pipeline 3 exports with dore furnace 1 is connected, the discharge pipe 21 of respectively with two two grades of cyclone cylinders 2 of two outlets at Y-shaped pipeline 3 top is connected, the upper end of Y-shaped pipeline 3 straight tube is provided with high-temperature flap valve 31, the lower end of Y-shaped pipeline 3 straight tube is provided with an air outlet, this air outlet is connected by horizontal pipe 5 wind pipe total with preheater 4, and horizontal pipe 5 is provided with high temperature gate valve 51.
During use, open high-temperature flap valve 31, draw the discharge pipe 21 that the flue gas containing CaO enters two grades of cyclone cylinders 2 from the gooseneck 11 of dore furnace 1 outlet, with the SO in flue gas in discharge pipe 212Reaction generates CaSO3, SO in the total wind pipe of preheater 42During concentration over-standard, opening high temperature gate valve 51, the flue gas containing CaO enters in the total wind pipe of preheater 4, the SO in flue gas in wind pipe 4 total with preheater2Reaction generates CaSO3, and can be according to kiln tail SO2Emissions data in real time to Y-shaped pipeline 3(i.e. desulfuration pipeline) on high-temperature flap valve 31 be adjusted, and then the flow-control kiln tail chimney SO of flue gas containing CaO is drawn in regulation2Concentration of emission, as standard-sized sheet high-temperature flap valve 31SO2When concentration of emission is to be exceeded standard, open high temperature gate valve 51, adjust the aperture of high temperature gate valve 51 according to concentration of emission, finally realize kiln tail chimney SO2Concentration of emission qualified.
Claims (1)
1. kiln tail desulfurizer, including two two grades of cyclone cylinders, dore furnace and the total wind pipe of preheater, it is characterized in that, at two two grades, Y-shaped pipeline is set between cyclone cylinder and dore furnace, import bottom Y-shaped pipeline is connected with the gooseneck of decomposition furnace outlet, the discharge pipe of respectively with two two grades of cyclone cylinders of two outlets at Y-shaped pipeline top is connected, the upper end of Y-shaped pipeline straight tube is provided with high-temperature flap valve, the lower end of Y-shaped pipeline straight tube is provided with an air outlet, this air outlet is connected by horizontal pipe wind pipe total with preheater, and horizontal pipe is provided with high temperature gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033304.2U CN205461701U (en) | 2016-01-14 | 2016-01-14 | Kiln tail desulphurization unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033304.2U CN205461701U (en) | 2016-01-14 | 2016-01-14 | Kiln tail desulphurization unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205461701U true CN205461701U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620033304.2U Active CN205461701U (en) | 2016-01-14 | 2016-01-14 | Kiln tail desulphurization unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN205461701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054204A (en) * | 2020-02-24 | 2020-04-24 | 上海三融环保工程有限公司 | Self-circulation desulfurization device, self-circulation desulfurization system and self-circulation desulfurization method |
| CN114870613A (en) * | 2022-04-08 | 2022-08-09 | 福建中翼节能科技有限公司 | Novel cement kiln flue gas environmental protection desulfurization device |
-
2016
- 2016-01-14 CN CN201620033304.2U patent/CN205461701U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054204A (en) * | 2020-02-24 | 2020-04-24 | 上海三融环保工程有限公司 | Self-circulation desulfurization device, self-circulation desulfurization system and self-circulation desulfurization method |
| CN114870613A (en) * | 2022-04-08 | 2022-08-09 | 福建中翼节能科技有限公司 | Novel cement kiln flue gas environmental protection desulfurization device |
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| C14 | Grant of patent or utility model | ||
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