CN218180429U - Blast furnace falls charge level blowing-out coal gas sampling device - Google Patents
Blast furnace falls charge level blowing-out coal gas sampling device Download PDFInfo
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- CN218180429U CN218180429U CN202222666824.5U CN202222666824U CN218180429U CN 218180429 U CN218180429 U CN 218180429U CN 202222666824 U CN202222666824 U CN 202222666824U CN 218180429 U CN218180429 U CN 218180429U
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Abstract
The utility model belongs to the technical field of the blast furnace is smelted, a blast furnace falls charge level blowing-out coal gas sampling device is related to, including the blast furnace, set up in the coal gas tedge at blast furnace top, set up in the wind gap platform district of blast furnace one side, the coal gas sampling tube, reserve coal gas sampling tube nitrogen gas jar, nitrogen gas branch pipe, coal gas chemical examination device. By adding the sampling hole in the blast furnace top gas riser and welding the gas sampling tube, a spare gas sampling tube is added, so that the gas testing work is prevented from being influenced by the problem of a single pipeline; leading the furnace top mixed gas to a lower tuyere platform area, adding nitrogen for back blowing on a pipeline, and avoiding dust from blocking a sampling pipeline; the end part of the gas sampling tube is additionally provided with the gas testing device, so that the gas can be tested in real time only by using the switch of the valve without taking the gas outside, the labor intensity of workers is reduced, the working efficiency is improved, the accuracy of a testing result can be ensured, and a plurality of potential safety hazards existing in the sampling and delivering processes of the workers are eliminated.
Description
Technical Field
The utility model belongs to the technical field of blast furnace smelting, concretely relates to blast furnace falls charge level blowing-out coal gas sampling device.
Background
The blowing-out operation is an important link in the production of the blast furnace, the components of the gas of the blast furnace can show regular changes in the whole blowing-out process, the gas components during blowing-out can be measured at equal time intervals, the charge level position can be roughly determined according to the change rules, important parameters are provided for the blowing-out operation, and CO is pushed along with the blowing-out time 2 Curve of change in content, CO, with falling level 2 The content of CO is reduced as well, and when the content of CO is reduced 2 When the position of the charge level is lowered to the inflection point, the charge level position at the moment can be judged to be close to the furnace waist part, so that the charge level position in the furnace blowing-out process can be mastered, and the method is particularly important when no long stock rod exists or the long stock rod fails to work during furnace blowing-out. In addition, H can be effectively tracked 2 The change of concentration is avoided due to H 2 The furnace shutdown explosion accident and the like are caused by the over-high concentration, and the safe operation of the furnace shutdown is ensured.
In the blowing-out process, under unnecessary special conditions, personnel are strictly prohibited from working on the furnace top, and how to obtain the furnace top mixed gas sample needs to make corresponding measures and manufacture corresponding tools; and safety accidents are easy to happen when the gas sample is taken by improper operation.
The taken gas sample needs to be sent to a laboratory by a special person for division, so that the labor intensity of staff is increased, the working efficiency is influenced, the time consumption for taking and sending the sample is long, the error of a test result is large, and the potential safety hazard also exists in the process of sending the test sample.
Disclosure of Invention
An object of the utility model is to provide a carry out chemical examination to coal gas composition in real time, alleviate staff intensity of labour, improve work efficiency, guarantee to examine the blast furnace of result accuracy and fall charge level blowing-out coal gas sampling device.
The utility model provides a technical scheme that its technical problem adopted is: a blast furnace material level lowering and blowing-out gas sampling device comprises a blast furnace, a gas ascending pipe arranged at the top of the blast furnace, a tuyere platform area arranged at one side of the blast furnace, a gas sampling pipe, a nitrogen tank, a nitrogen branch pipe and a gas testing device; the gas sampling device is characterized in that a sampling hole is formed in the gas ascending pipe and is connected with one end of a gas sampling pipe, the other end of the gas sampling pipe is connected to a gas testing device, a second gas valve and a first gas valve are sequentially arranged on the gas sampling pipe, the position, close to the gas testing device, of the gas sampling pipe is connected with a nitrogen tank through a nitrogen branch pipe, a nitrogen valve is arranged at the position, close to the gas sampling pipe, of the nitrogen branch pipe, and the gas testing device, the first gas valve, the second gas valve and the nitrogen valve are located in the air port platform area.
Furthermore, a standby gas sampling pipe is arranged on one side of the gas sampling pipe in parallel, a first gas valve and a second gas valve are arranged on the standby gas sampling pipe respectively, one end of the standby gas sampling pipe is connected to the sampling hole in the gas ascending pipe, the other end of the standby gas sampling pipe is connected to the gas testing device, the position, close to the gas testing device, of the standby gas sampling pipe is connected with the nitrogen tank through a nitrogen branch pipe, and the position, close to the standby gas sampling pipe, of the nitrogen branch pipe is provided with a nitrogen valve.
Furthermore, the number of the sampling holes on the gas ascending pipe is two, one sampling hole is connected with the gas sampling pipe, and the other sampling hole is connected with the spare gas sampling pipe.
The utility model discloses following beneficial effect has: the utility model adds the sampling hole on the blast furnace top gas riser, welds the gas sampling tube, adds the spare gas sampling tube, and two pipelines are used one by one, thereby avoiding the influence on the normal propulsion of the gas testing work due to the problem of a single pipeline; leading the furnace top mixed gas to a lower tuyere platform area, adding nitrogen for back blowing on a pipeline, and avoiding dust from blocking a sampling pipeline; the end part of the gas sampling tube is additionally provided with the gas testing device, so that gas is not required to be taken outside, and the gas components can be tested in real time according to requirements only by using the switch of the valve, so that the labor intensity of workers is reduced, the working efficiency is improved, the accuracy of a testing result can be ensured, and a plurality of potential safety hazards existing in the sampling and delivering processes of the workers are eliminated.
Drawings
Fig. 1 is a schematic structural diagram of the gas sampling device of the present invention.
In the figure, 1, a blast furnace, 2, a gas ascending pipe, 3, a first gas valve, 4, a gas sampling pipe, 5, a spare gas sampling pipe, 6, a second gas valve, 7, a nitrogen tank, 8, a nitrogen branch pipe, 9, a nitrogen valve, 10, a gas testing device, 11 and a tuyere platform area.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the blast furnace charge level lowering and blowing-out gas sampling device comprises a blast furnace 1, a gas ascending pipe 2 arranged at the top of the blast furnace 1, a tuyere platform area 11 arranged at one side of the blast furnace 1, a gas sampling pipe 4, a nitrogen tank 7, a nitrogen branch pipe 8 and a gas testing device 10; the gas riser 2 is provided with a sampling hole, the sampling hole is connected with one end of a gas sampling tube 4, the other end of the gas sampling tube 4 is connected to a gas testing device 10, a second gas valve 6 and a first gas valve 3 are sequentially arranged on the gas sampling tube 4, the position, close to the gas testing device 10, on the gas sampling tube 4 is connected with a nitrogen tank 7 through a nitrogen branch tube 8, the position, close to the gas sampling tube 4, on the nitrogen branch tube 8 is provided with a nitrogen valve 9, and the gas testing device 10, the first gas valve 3, the second gas valve 6 and the nitrogen valve 9 are all located in a tuyere platform area 11.
A standby gas sampling pipe 5 is arranged on one side of the gas sampling pipe 4 in parallel, a first gas valve 3 and a second gas valve 6 are respectively arranged on the standby gas sampling pipe 5, one end of the standby gas sampling pipe 5 is connected to a sampling hole on the gas ascending pipe 2, the other end of the standby gas sampling pipe 5 is connected to a gas testing device 10, the position, close to the gas testing device 10, on the standby gas sampling pipe 5 is connected with a nitrogen tank 7 through a nitrogen branch pipe 8, and a nitrogen valve 9 is arranged on the position, close to the standby gas sampling pipe 5, on the nitrogen branch pipe 8.
The number of sampling holes on the gas ascending pipe 2 is two, one sampling hole is connected with a gas sampling pipe 4, and the other sampling hole is connected with a spare gas sampling pipe 5.
The nitrogen branch pipe 8 is provided with a tee joint, the nitrogen branch pipe 8 is respectively connected with the gas sampling pipe 4 and the spare gas sampling pipe 5 through the tee joint, and the two nitrogen valves 9 are respectively arranged between the tee joint and the gas sampling pipe 4 and between the tee joint and the spare gas sampling pipe 5 and are used for respectively controlling the back flushing of nitrogen to the gas sampling pipe 4 and the spare gas sampling pipe 5.
Arranging professionals to wear corresponding protective articles before blowing out, selecting proper positions on the furnace top gas riser, making two sampling holes, and welding the inner diameter of the sampling holes
The gas sampling tube and the standby gas sampling tube are connected to the tuyere platform area, and the two pipelines are used and standby one by one, so that the normal propulsion of gas testing work is prevented from being influenced due to the problem of a single pipeline; two gas valves, namely a first gas valve and a second gas valve, are added at the rear ends of the gas sampling pipe and the spare gas sampling pipe, so that gas is effectively cut off; leading out a nitrogen branch pipe from a nitrogen tank in the tuyere platform area, connecting the nitrogen branch pipe to the tail parts of the two gas sampling pipes, adding a nitrogen valve, opening the nitrogen valve when a gas sample is not taken, carrying out back flushing on the two gas sampling pipes, and avoiding that the dust blocks a pipeline to cause that the sample cannot be collected; the tail end of the gas sampling tube is connected with a gas testing device, so that the gas can be tested in real time without taking the gas outside.
In the blowing-out process, close the nitrogen gas valve on a pipeline, utilize the nature of the same pressure in the pipeline, will overflow mixed coal gas in the coal gas sampling pipe, close the first gas valve and the second gas valve of corresponding pipeline this moment, can be at pipeline afterbody intercepting a certain amount of mixed coal gas, this part coal gas directly links to each other with the coal gas chemical examination device, can realize directly testing and obtaining the result to the coal gas composition, open first gas valve and second gas valve after the chemical examination is finished, open the nitrogen gas valve blowback simultaneously, avoid the dust to block up the pipeline. And repeating the assay according to the requirement.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Under the prerequisite that does not deviate from the design concept of the utility model, the ordinary person in the art should fall into the protection scope of the utility model to the various changes and improvements that the technical scheme of the utility model made.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (3)
1. A blast furnace charge level lowering and blowing-out gas sampling device is characterized by comprising a blast furnace, a gas ascending pipe arranged at the top of the blast furnace, a tuyere platform area arranged at one side of the blast furnace, a gas sampling pipe, a nitrogen tank, a nitrogen branch pipe and a gas testing device;
the gas sampling device is characterized in that a sampling hole is formed in the gas ascending pipe and is connected with one end of a gas sampling pipe, the other end of the gas sampling pipe is connected to a gas testing device, a second gas valve and a first gas valve are sequentially arranged on the gas sampling pipe, the position, close to the gas testing device, of the gas sampling pipe is connected with a nitrogen tank through a nitrogen branch pipe, a nitrogen valve is arranged at the position, close to the gas sampling pipe, of the nitrogen branch pipe, and the gas testing device, the first gas valve, the second gas valve and the nitrogen valve are located in the air port platform area.
2. The blast furnace burden-descending blowing-out gas sampling device according to claim 1, wherein a spare gas sampling tube is provided in parallel on one side of the gas sampling tube, the spare gas sampling tube is provided with a first gas valve and a second gas valve, respectively, one end of the spare gas sampling tube is connected to the sampling hole on the gas riser, the other end of the spare gas sampling tube is connected to the gas testing device, a position on the spare gas sampling tube, which is close to the gas testing device, is connected to the nitrogen tank through a nitrogen branch tube, and a position on the nitrogen branch tube, which is close to the spare gas sampling tube, is provided with a nitrogen valve.
3. The blast furnace charge level lowering and blowing-out gas sampling device as claimed in claim 2, wherein there are two sampling holes in said gas rising pipe, one sampling hole being connected to a gas sampling pipe, and the other sampling hole being connected to a spare gas sampling pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222666824.5U CN218180429U (en) | 2022-10-11 | 2022-10-11 | Blast furnace falls charge level blowing-out coal gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222666824.5U CN218180429U (en) | 2022-10-11 | 2022-10-11 | Blast furnace falls charge level blowing-out coal gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218180429U true CN218180429U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222666824.5U Active CN218180429U (en) | 2022-10-11 | 2022-10-11 | Blast furnace falls charge level blowing-out coal gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218180429U (en) |
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2022
- 2022-10-11 CN CN202222666824.5U patent/CN218180429U/en active Active
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