CN211292203U - Converter coal gas composition detects large-traffic air exhaust device - Google Patents
Converter coal gas composition detects large-traffic air exhaust device Download PDFInfo
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- CN211292203U CN211292203U CN201921765833.1U CN201921765833U CN211292203U CN 211292203 U CN211292203 U CN 211292203U CN 201921765833 U CN201921765833 U CN 201921765833U CN 211292203 U CN211292203 U CN 211292203U
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Abstract
The utility model discloses a converter gas composition detects large-traffic air exhaust device, relate to steelmaking converter gas recovery technical field, including large-traffic aspiration pump, the sampling pipeline, the exhaust pipe, manual control valve, float flowmeter and composition instrumentation, sampling pipeline and exhaust pipe all connect in manual control valve, large-traffic aspiration pump is located on the sampling pipeline, float flowmeter and composition instrumentation locate on the blast pipe way, still include the sample thief, the freezing dehydrator, the filter, the sample pipeline is connected on locating the converter gas pipeline to the sample thief, the freezing dehydrator, the filter is located sampling pipeline between sample thief and the large-traffic aspiration pump in proper order on the road, still be connected with the exhaust bypass, be equipped with manual control valve in proper order on the exhaust bypass, the float flowmeter. The delay time of the detection of the components of the converter gas is reduced, and the real-time analysis can be basically realized.
Description
Technical Field
The utility model relates to a steelmaking converter coal gas retrieves technical field, especially relates to a converter coal gas composition detects large-traffic air exhaust device.
Background
A converter can generate a large amount of CO in the production process, and converter gas recovery can recover a large amount of energy, so that the energy-saving and emission-reducing effects are great. The converter steelmaking basically realizes the recovery of converter gas, the recovery of the converter gas is based on the detection of gas components when CO and O2The recovery is started after the content is qualified, and once CO and O are generated2The unqualified content is immediately diffused, so the accuracy and timeliness of the detection are very important. At present, converter gas component detection generally adopts an extraction type system with pretreatment, converter gas is extracted through an air extraction pump and enters an instrument for analysis, but a gas extraction pipeline is long, the front of the instrument is about 20m, if a phi 8 gas extraction pipeline is adopted, 1L of converter gas is arranged in the front pipeline of the instrument, and the air extraction pump with the air extraction capacity of 3L/min is generally selected, so that the real-time converter gas can enter the instrument for analysis after 20s of delay. This means that the recovery is delayed by 20s, generally 10-12min is recovered in each furnace, thus, 2.5% -3% of qualified coal gas is less recovered in each furnace; and the delay of 20s of emission causes unqualified converter gas to be recycled, so that potential safety hazard exists. Therefore, the delay time of the detection of the components of the converter gas is reduced as much as possible, and the delay time is only about 1s and is basically real-time if a suction pump of 50-100L/min is adopted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a converter gas composition detects large-traffic air exhaust device, including large-traffic aspiration pump, the sampling pipeline, the exhaust pipe, manual control valve, float flowmeter and composition instrumentation, sampling pipeline and exhaust pipe all connect in manual control valve, large-traffic aspiration pump is located on the sampling pipeline, float flowmeter and composition instrumentation locate on the exhaust pipe, still include the sample thief, freezing dehydrator, the filter, the sample thief is located on the converter gas pipeline and is connected the sampling pipeline, freezing dehydrator, the filter is located on the sampling pipeline between sample thief and the large-traffic aspiration pump in proper order, still be connected with the exhaust bypass, be equipped with manual control valve on the exhaust bypass in proper order, float flowmeter.
The technical effects are as follows: the utility model provides a pair of large-traffic air exhaust device of converter gas composition detection has reduced the delay time that converter gas composition detected, can realize real-time analysis basically.
The utility model discloses the technical scheme who further injects is:
according to the converter gas component detection high-flow air extraction device, the air extraction flow of the high-flow air extraction pump is 50-100L/min.
According to the converter gas component detection high-flow air extraction device, the exhaust bypass is connected between the high-flow air extraction pump and the manual regulating valve.
According to the converter gas component detection high-flow air extraction device, the detected converter gas is discharged through the exhaust pipeline.
The utility model has the advantages that: the utility model discloses having reduced converter coal gas composition detection delay time by a wide margin, accomplishing real-time analysis basically, can retrieving 2% -3% more qualified converter coal gas, in time diffusing unqualified converter coal gas simultaneously, avoided the potential safety hazard, had energy saving and emission reduction and the dual meaning of safe recovery.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. a manual regulating valve; 2. a float flow meter; 3. an exhaust bypass; 4. a sampling pipeline; 5. a sampler; 6. an exhaust line; 7. a freezing dehydrator; 8. a filter; 9. a high-flow air pump; 10. a component detecting instrument.
Detailed Description
The structure of the high-flow air extraction device for detecting the components of the converter gas provided by the embodiment is shown in fig. 1, and the high-flow air extraction device comprises a high-flow air extraction pump 9, a sampling pipeline 4, an exhaust pipeline 6, a manual regulating valve 1, a float flowmeter 2 and a component detection instrument 10, wherein the air extraction flow of the high-flow air extraction pump 9 is 50-100L/min. Sampling pipeline 4 and exhaust pipe 6 all connect in manual control valve 1, large-traffic aspiration pump 9 is located on sampling pipeline 4, float flowmeter 2 and composition detecting instrument 10 are located on exhaust pipe 6, still include sample thief 5, freeze dehydrator 7, filter 8, sample thief 5 is located on the converter gas pipeline and is connected sampling pipeline 4, freeze dehydrator 7, filter 8 is located in proper order on sample thief 5 and the sampling pipeline 4 between the large-traffic aspiration pump 9, still be connected with exhaust bypass 3 between large-traffic aspiration pump 9 and the manual control valve 1, be equipped with manual control valve 1 on the exhaust bypass 3 in proper order, float flowmeter 2, converter gas after the detection discharges through exhaust pipe 6. Wherein, the air pumping flow of the large-flow air pump 9 is not necessarily 50-100L/min, but is obviously larger than the flow of the common air pump.
The debugging method of the device comprises the following steps: the method comprises the steps that a manual regulating valve 1 on an exhaust bypass 3 is opened firstly, the manual regulating valve 1 in front of a component detection instrument 10 is closed, the manual regulating valve 1 in front of the component detection instrument 10 is opened slowly after a large-flow air pump 9 runs, and when the indication of a float flowmeter 2 meets the instrument detection requirement, the opening degree of the manual regulating valve 1 is fixed.
In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (4)
1. The utility model provides a converter coal gas composition detects large-traffic air exhaust device, includes large-traffic aspiration pump (9), sampling pipeline (4), exhaust pipe (6), manual control valve (1), float flowmeter (2) and composition detecting instrument (10), sampling pipeline (4) with exhaust pipe (6) all connect in manual control valve (1), large-traffic aspiration pump (9) are located on sampling pipeline (4), float flowmeter (2) with composition detecting instrument (10) are located on exhaust pipe (6), its characterized in that: the sampling device is characterized by further comprising a sampler (5), a freezing dehydrator (7) and a filter (8), wherein the sampler (5) is arranged on a converter gas pipeline and is connected with the sampling pipeline (4), the freezing dehydrator (7) and the filter (8) are sequentially arranged between the sampler (5) and the large-flow air pump (9), an exhaust bypass (3) is further connected onto the sampling pipeline (4), and the exhaust bypass (3) is sequentially provided with the manual regulating valve (1) and the float flowmeter (2).
2. The large-flow air extractor for detecting the components of the converter gas according to claim 1, which is characterized in that: the air exhaust flow of the large-flow air exhaust pump (9) is 50-100L/min.
3. The large-flow air extractor for detecting the components of the converter gas according to claim 1, which is characterized in that: the exhaust bypass (3) is connected between the large-flow air pump (9) and the manual regulating valve (1).
4. The large-flow air extractor for detecting the components of the converter gas according to claim 1, which is characterized in that: the detected converter gas is discharged through the exhaust pipeline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765833.1U CN211292203U (en) | 2019-10-21 | 2019-10-21 | Converter coal gas composition detects large-traffic air exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765833.1U CN211292203U (en) | 2019-10-21 | 2019-10-21 | Converter coal gas composition detects large-traffic air exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211292203U true CN211292203U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921765833.1U Active CN211292203U (en) | 2019-10-21 | 2019-10-21 | Converter coal gas composition detects large-traffic air exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211292203U (en) |
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2019
- 2019-10-21 CN CN201921765833.1U patent/CN211292203U/en active Active
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