CN214496370U - Converter dry dedusting coal gas recovery device - Google Patents
Converter dry dedusting coal gas recovery device Download PDFInfo
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- CN214496370U CN214496370U CN202022857217.8U CN202022857217U CN214496370U CN 214496370 U CN214496370 U CN 214496370U CN 202022857217 U CN202022857217 U CN 202022857217U CN 214496370 U CN214496370 U CN 214496370U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model provides a converter dry process dust removal coal gas recovery unit, the device include that flue gas input pipeline, coal gas diffuse pipeline, coal gas recovery pipeline, carbon monoxide analysis appearance, oxygen analysis appearance, diffuse cup valve, proportional servo valve, retrieve the cup valve, diffuse chimney, coal gas cooler, coal gas output pipeline, coal gas cooler entry glasses valve, coal gas cooler export glasses valve and gas chamber. The utility model discloses can improve coal gas recovery precision and can greatly reduced switch the probability of holding back the fan when retrieving the mode in the mode of diffusing. The gas cooler inlet glasses valve is additionally arranged behind the recovery cup valve, and when the system needs to be stopped for maintenance, equipment maintenance needs to be carried out by closing the gas cooler inlet glasses valve, so that the safety operation of personnel is ensured.
Description
Technical Field
The utility model discloses converter coal gas recovery technical field relates to a converter dry process dust removal coal gas recovery unit.
Background
Converter gas is important secondary energy for iron and steel enterprises, is one of weak links for recycling secondary energy in China, and is not only required for developing circular economy and implementing clean production, but also required for energy conservation, emission reduction and cost reduction of enterprises. The high-temperature furnace gas in the converter steelmaking process contains high-temperature sensible heat and chemical latent heat and can be recycled. Converter gas containing a large amount of CO is called converter gas, is one of the most important byproducts of steel making, and has great significance for recycling and utilizing the converter gas to save energy consumption and reduce environmental pollution for steel making. The gas recovery precision of the existing converter dry dedusting gas recovery device is low, and the problem of a fan being blocked easily occurs when the diffusing mode and the recovery mode are switched.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a can improve coal gas recovery precision and can reduce the probability that the fan condition takes place is held back when diffusing the mode and switching into the recovery mode to converter dry process dust removal coal gas recovery unit.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a converter dry dedusting gas recovery device comprises:
the flue gas input pipeline is used for inputting flue gas which is cooled by the evaporative cooler and then is output, and the outlet end of the flue gas input pipeline is simultaneously communicated with the gas diffusion pipeline and the gas recovery pipeline;
the carbon monoxide analyzer and the oxygen analyzer are sequentially arranged on the flue gas input pipeline;
the bleeding cup valve is arranged on the coal gas bleeding pipeline;
the proportional servo valve is arranged on a control pipeline connected with the bleeding cup valve;
the recovery cup valve is arranged on the coal gas recovery pipeline;
the diffusion chimney is communicated with the outlet end of the coal gas diffusion pipeline;
the gas cooler is communicated with the outlet end of the gas recovery pipeline;
the gas output pipeline is communicated with the outlet end of the gas cooler;
the gas cooler inlet glasses valve is arranged on a gas recovery pipeline between the recovery cup valve and the gas cooler;
the gas cooler outlet glasses valve is arranged on the gas output pipeline;
and the gas chamber is communicated with the outlet end of the gas output pipeline.
Furthermore, the converter dry dedusting gas recovery device also comprises a PLC controller, and the PLC controller is respectively connected with the carbon monoxide analyzer, the oxygen analyzer, the bleeding cup valve, the proportional servo valve and the recovery cup valve.
Further, the carbon monoxide analyzer adopts a carbon monoxide infrared analyzer.
Further, the oxygen analyzer adopts a double-electrode electrochemical oxygen analyzer.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses diffusing cup valve is through increasing the proportional servo valve on diffusing cup valve, and proportional servo valve's aperture is controllable, can finely tune, ensures to switch the station differential pressure and slowly increases, and the front and back differential pressure satisfies the technological requirement, can improve coal gas recovery precision, and when diffusing the mode and switching into the recovery mode, greatly reduced held back the probability that the fan condition takes place when diffusing the mode and switching into the recovery mode.
(2) The gas cooler inlet glasses valve is additionally arranged behind the recovery cup valve, and when the system needs to be stopped for maintenance, equipment maintenance needs to be carried out by closing the gas cooler inlet glasses valve, so that the safety operation of personnel is ensured.
(3) The carbon monoxide analyzer adopts a carbon monoxide infrared analyzer, the oxygen analyzer adopts a double-electrode electrochemical oxygen analyzer, and the carbon monoxide content and the oxygen content of the flue gas output by the self-evaporation cooler can be accurately measured, so that the PLC can accurately control the diffusion cup valve, the proportional servo valve and the recovery cup valve, and the coal gas recovery precision is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. a flue gas input pipeline, 101, a coal gas diffusion pipeline, 102 and a coal gas recovery pipeline;
2. carbon monoxide analyzer, 3, oxygen analyzer;
41. a bleeding cup valve 42, a proportional servo valve;
5. the system comprises a recovery cup valve 6, a diffusion chimney 7, a gas cooler 8, a gas output pipeline 9, a gas cooler inlet glasses valve 10, a gas cooler outlet glasses valve 11 and a gas cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1, a gas recovery device for dry dedusting of a converter comprises:
the flue gas input pipeline 1 is used for inputting flue gas which is cooled by the evaporative cooler and then is output, and the outlet end of the flue gas input pipeline 1 is communicated with the coal gas diffusion pipeline 101 and the coal gas recovery pipeline 102 at the same time;
a carbon monoxide analyzer 2 and an oxygen analyzer 3 which are sequentially arranged on the flue gas input pipeline 1;
the bleeding cup valve 41, the bleeding cup valve 41 is installed on the coal gas bleeding pipeline 101;
a proportional servo valve 42 installed on a control line connected to the purge cup valve 41;
the recovery cup valve 5 is arranged on the gas recovery pipeline 102;
the bleeding chimney 6 is communicated with the outlet end of the coal gas bleeding pipeline 101;
the gas cooler 7 is communicated with the outlet end of the gas recovery pipeline 102;
the gas output pipeline 8 is communicated with the outlet end of the gas cooler 7;
the gas cooler inlet glasses valve 9 is arranged on a gas recovery pipeline 102 between the recovery cup valve 5 and the gas cooler 7;
the gas cooler outlet glasses valve 10 is arranged on the gas output pipeline 8;
and the gas tank 11 is communicated with the outlet end of the gas output pipeline 8.
The converter dry dedusting gas recovery device further comprises a PLC (programmable logic controller), and the PLC is respectively connected with the carbon monoxide analyzer 2, the oxygen analyzer 3, the bleeding cup valve 41, the proportional servo valve 42 and the recovery cup valve 5.
The carbon monoxide analyzer 2 adopts a carbon monoxide infrared analyzer.
The oxygen analyzer 3 adopts a double-electrode electrochemical oxygen analyzer 3.
The utility model discloses a coal gas recovery flow: the flue gas with the temperature reduced to 180-2When the content is lower than 1.2% and the CO content is higher than 15%), a signal is transmitted to the PLC controller, the PLC controller controls the relief cup valve 41 to be closed and the recovery cup valve 5 to be opened, the flue gas can be conveyed to the gas cooler 7, the temperature of the flue gas can be reduced again through the gas cooler 7, and the flue gas is sent to the gas cabinet 11 to be stored after the temperature is reduced to below 70 ℃. When the carbon monoxide analyzer 2 and the oxygen analyzer 3 detect that the purified flue gas does not conform to the recovery conditions, the diffusing cup valve 41 and the proportional servo valve 42 are opened, the recovering cup valve 5 is closed, and the flue gas is ignited and diffused to the diffusing chimney. The utility model discloses an installation proportion servo valve 42 on the control line of diffusing cup valve 41, proportion servo valve 42's aperture is controllable, can finely tune, consequently can improve coal gas recovery precision, when diffusing the mode and switching into the recovery mode, greatly reduced is diffusing the mode and switching into the probability that the fan condition takes place when retrieving the mode.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (4)
1. A converter dry dedusting gas recovery device is characterized by comprising:
the flue gas input pipeline is used for inputting flue gas which is cooled by the evaporative cooler and then is output, and the outlet end of the flue gas input pipeline is simultaneously communicated with the gas diffusion pipeline and the gas recovery pipeline;
the carbon monoxide analyzer and the oxygen analyzer are sequentially arranged on the flue gas input pipeline;
the bleeding cup valve is arranged on the coal gas bleeding pipeline;
the proportional servo valve is arranged on a control pipeline connected with the bleeding cup valve;
the recovery cup valve is arranged on the coal gas recovery pipeline;
the diffusion chimney is communicated with the outlet end of the coal gas diffusion pipeline;
the gas cooler is communicated with the outlet end of the gas recovery pipeline;
the gas output pipeline is communicated with the outlet end of the gas cooler;
the gas cooler inlet glasses valve is arranged on a gas recovery pipeline between the recovery cup valve and the gas cooler;
the gas cooler outlet glasses valve is arranged on the gas output pipeline;
and the gas chamber is communicated with the outlet end of the gas output pipeline.
2. The converter dry dedusting gas recovery device as recited in claim 1, further comprising a PLC controller, wherein the PLC controller is respectively connected to the carbon monoxide analyzer, the oxygen analyzer, the bleeding cup valve, the proportional servo valve, and the recovery cup valve.
3. The converter dry dedusting gas recovery device of claim 1, wherein the carbon monoxide analyzer is a carbon monoxide infrared analyzer.
4. The converter dry dedusting gas recovery device as recited in claim 1, wherein the oxygen analyzer is a two-electrode electrochemical oxygen analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022857217.8U CN214496370U (en) | 2020-12-02 | 2020-12-02 | Converter dry dedusting coal gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022857217.8U CN214496370U (en) | 2020-12-02 | 2020-12-02 | Converter dry dedusting coal gas recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN214496370U true CN214496370U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022857217.8U Active CN214496370U (en) | 2020-12-02 | 2020-12-02 | Converter dry dedusting coal gas recovery device |
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| Country | Link |
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| CN (1) | CN214496370U (en) |
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2020
- 2020-12-02 CN CN202022857217.8U patent/CN214496370U/en active Active
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