CN210638966U - Coal gas sampling system of blast furnace material lowering line - Google Patents
Coal gas sampling system of blast furnace material lowering line Download PDFInfo
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- CN210638966U CN210638966U CN201921248624.XU CN201921248624U CN210638966U CN 210638966 U CN210638966 U CN 210638966U CN 201921248624 U CN201921248624 U CN 201921248624U CN 210638966 U CN210638966 U CN 210638966U
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Abstract
The utility model provides a coal gas sampling system of a blast furnace material lowering line, wherein a coal gas pipe and a nitrogen pipe are respectively connected with a sampling main pipe through a coal gas valve and a nitrogen valve, the sampling main pipe is connected with a sampling branch pipe valve and a coal gas filter, the other end of the sampling branch pipe is respectively connected with a sampling pipe and a diffusing pipe, and the other end of the sampling pipe is connected with a sampler through the sampling valve; the tail of the sampling main pipe is connected with a pressure gauge through the side of a stop valve of the pressure gauge, and the outlet end of the sampling main pipe is provided with a system bleeding valve. The utility model discloses can realize the timely accuracy of coal gas sample, guarantee the accuracy that the stockline data were fallen to the blast furnace, guarantee to fall the accuracy of stockline period coal gas recovery time and stockline degree of depth, prevent that coal gas from taking out the jam of mouthful, avoid the personnel's of taking a sample coal gas poisoning accident.
Description
Technical Field
The utility model belongs to examine chemical examination device field, especially relate to a blast furnace falls stockline coal gas sampling system.
Background
The material lowering line of blast furnace shutdown is based on CO in coal gas2The depth of the stockline is mastered according to the change rule, and the safety and the accuracy of gas sampling directly influence the quality of the blast furnace stockline descending. Meanwhile, gas poisoning accidents and blockage of gas sampling holes are easy to happen in the gas sampling process, so that the situations that sampling cannot be carried out, a gas sample contains more impurities and can not be tested are caused.
Disclosure of Invention
The utility model aims at providing a can take out the coal gas sample by safe accuracy, fall the stockline process for the blast furnace and provide accurate data, ensure that the blast furnace of sampling personnel's safety falls stockline coal gas sampling system.
The utility model discloses the technical solution who takes does:
a blast furnace material lowering line gas sampling system comprises a gas pipe, a nitrogen pipe, a sampling main pipe, a sampling branch pipe, a gas filter, a sampling pipe, a diffusing pipe, a sampler, a pressure gauge and stop valves matched with all pipelines; the gas pipe and the nitrogen pipe are respectively connected with a sampling main pipe through a gas valve and a nitrogen valve, the other end of the gas pipe is connected with a gas pipeline of a blast furnace material descending line, the other end of the nitrogen pipe is connected with a nitrogen main pipe, the sampling main pipe is connected with a sampling branch pipe valve and a gas filter, the other end of the sampling branch pipe is respectively connected with the sampling pipe and a bleeding pipe with a bleeding valve, and the other end of the sampling pipe is connected with a sampler through the sampling valve; the tail part of the sampling main pipe is connected with a pressure gauge through the side of a stop valve of the pressure gauge, and the outlet end of the sampling main pipe is provided with a system bleeding valve.
The utility model can realize the timely and accurate sampling of the coal gas, ensure the accuracy of the data of the stock line falling of the blast furnace, and ensure the accuracy of the coal gas recovery time and the depth of the stock line during the stock line falling period; the nitrogen is adopted for purging and maintaining pressure, so that the blockage of a coal gas outlet can be prevented; the gas sampling system is arranged at the air circulation position far away from the gas and explosion danger area, so that the danger of sampling at the top of the blast furnace is eliminated, and the labor intensity of sampling personnel is reduced; the system is provided with a diffusing device, and the diffusing pipe is far away from a sampling operation area, so that the danger of gas poisoning of sampling personnel can be prevented.
Drawings
FIG. 1 is a schematic view of a gas sampling system of a blast furnace downline.
In the figure: the device comprises a gas pipe 1, a gas valve 2, a nitrogen pipe 3, a nitrogen valve 4, a sampling main pipe 5, a sampling branch pipe valve 6, a sampling branch pipe 7, a gas filter 8, a bleeding pipe 9, a bleeding valve 10, a sampling pipe 11, a sampling valve 12, a sampler 13, a pressure gauge 14, a pressure gauge stop valve 15 and a system bleeding valve 16.
Detailed Description
As can be seen from figure 1, the utility model discloses blast furnace material falling line gas sampling system is by gas pipe 1, gas valve 2, nitrogen gas pipe 3, nitrogen gas valve 4, the sample is responsible for 5, sample branch pipe valve 6, sample branch pipe 7, gas filter 8, diffuse pipe 9, diffuse valve 10, sampling tube 11, sampling valve 12, sampler 13, manometer 14, manometer stop valve 15, system diffuse valve 16 and constitute. The gas pipe 1 is connected with the sampling main pipe 5 through a gas valve 2, and the other end of the gas pipe 1 is connected with a gas pipeline of a blast furnace material descending line; the nitrogen pipe 3 is connected with the sampling main pipe 5 through a nitrogen valve 4, and the other end of the nitrogen pipe 3 is connected with the nitrogen main pipe. The sampling branch pipe 7 is connected to the sampling main pipe 5, the sampling branch pipe 7 is provided with a sampling branch pipe valve 6 and a gas filter 8, the other end of the sampling branch pipe 7 is respectively connected with the sampling pipe 11 and the diffusing pipe 9, the diffusing pipe 9 is provided with a diffusing valve 10, and the other end of the sampling pipe 11 is connected with the sampler 13 through the sampling valve 12. The tail part of the sampling main pipe 5 is connected with a pressure gauge 14 through a pressure gauge stop valve 15, and the outlet end of the sampling main pipe 5 is provided with a system relief valve 16.
The sampling process of the damping down coal gas of the blast furnace material lowering line can be divided into two stages: the first stage is as follows: the top gas enters the gas sampling device through the gas pipe 1, the sampling main pipe 5 and the sampling branch pipe 7, the bleeding pipe 9 discharges the residual gas in the pipeline, the bleeding valve 10 is closed, the sampling valve 12 is opened, and the gas enters the sampling bladder 13 for sampling after being filtered by the gas filter 8. And a second stage: after the first sampling is finished, the gas valve 2 is closed, the nitrogen valve 4 is opened, nitrogen is introduced into the gas sampling pipeline for purging and pressure maintaining, gas dust is prevented from blocking the gas sampling pipeline, and preparation is made for the next sampling.
Claims (1)
1. A blast furnace material lowering line gas sampling system is characterized by comprising a gas pipe, a nitrogen pipe, a sampling main pipe, a sampling branch pipe, a gas filter, a sampling pipe, a bleeding pipe, a sampler, a pressure gauge and stop valves matched with all pipelines; the gas pipe and the nitrogen pipe are respectively connected with a sampling main pipe through a gas valve and a nitrogen valve, the other end of the gas pipe is connected with a gas pipeline of a blast furnace material descending line, the other end of the nitrogen pipe is connected with a nitrogen main pipe, the sampling main pipe is connected with a sampling branch pipe valve and a gas filter, the other end of the sampling branch pipe is respectively connected with the sampling pipe and a bleeding pipe with a bleeding valve, and the other end of the sampling pipe is connected with a sampler through the sampling valve; the tail part of the sampling main pipe is connected with a pressure gauge through the side of a stop valve of the pressure gauge, and the outlet end of the sampling main pipe is provided with a system bleeding valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921248624.XU CN210638966U (en) | 2019-08-05 | 2019-08-05 | Coal gas sampling system of blast furnace material lowering line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921248624.XU CN210638966U (en) | 2019-08-05 | 2019-08-05 | Coal gas sampling system of blast furnace material lowering line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210638966U true CN210638966U (en) | 2020-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921248624.XU Active CN210638966U (en) | 2019-08-05 | 2019-08-05 | Coal gas sampling system of blast furnace material lowering line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210638966U (en) |
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2019
- 2019-08-05 CN CN201921248624.XU patent/CN210638966U/en active Active
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