CN217757543U - Slag flowing dust removal system of RH vacuum tank - Google Patents
Slag flowing dust removal system of RH vacuum tank Download PDFInfo
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- CN217757543U CN217757543U CN202220778248.0U CN202220778248U CN217757543U CN 217757543 U CN217757543 U CN 217757543U CN 202220778248 U CN202220778248 U CN 202220778248U CN 217757543 U CN217757543 U CN 217757543U
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Abstract
The utility model relates to a RH vacuum tank flows sediment dust pelletizing system belongs to metallurgical industry technical field. The vacuum groove switching device comprises a plurality of vacuum groove mechanisms, wherein outlet pipelines of the plurality of vacuum groove mechanisms are respectively connected with a vacuum switching unit; the outlet pipeline of the vacuum groove mechanism is connected with the inlet pipeline of the environment dust removal mechanism through a dust removal pipeline respectively, a nitrogen pipeline is arranged on the inlet pipeline, one end of the nitrogen pipeline is used as a nitrogen inlet, and the nitrogen inlet is externally connected with a nitrogen source. The vacuum switching unit comprises a vacuum mechanism, the vacuum mechanism is respectively communicated with the vacuum groove mechanisms through vacuum pipelines, a vacuum switching valve is arranged on each vacuum pipeline, and the vacuum switching valve is arranged at the joint of an outlet pipeline of each vacuum groove mechanism and the vacuum pipeline. When this application flows the sediment operation to a station RH vacuum tank, another station RH vacuum tank continues the operation, not only can collect the smoke and dust that produces when flowing the sediment operation, reduces the emission of particulate matter, improves production rhythm moreover, reduces and flows the sediment cost.
Description
Technical Field
The utility model relates to a RH vacuum tank flows sediment dust pelletizing system belongs to metallurgical industry technical field.
Background
After the RH vacuum tank is used for a period of time, slag flowing operation is required. The cold steel accumulated on the refractory bricks in the vacuum tank is cleaned by using oxygen, a large amount of smoke dust is generated in the process, and if the cold steel is not collected, the direct discharge can cause environmental pollution. Generally, the slag flowing operation is required to be carried out once every 12 hours, and the duration is about 30 minutes. Currently, this portion of smoke is recovered by the negative pressure generated by the vacuum pumping system. However, for the double-station RH furnace, when slag flowing operation is carried out at one station, the vacuum pump system cannot be used at the other station, so that the use rate of the RH system is reduced, the production rhythm is disturbed, and the slag flowing cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that when providing a RH vacuum tank flows sediment dust pelletizing system to above-mentioned prior art, flows the sediment operation to a station RH vacuum tank, another station RH vacuum tank continues the operation, improves the production rhythm, reduces and flows the sediment cost.
The utility model provides a technical scheme that above-mentioned problem adopted does: a kind of RH vacuum tank flows the dreg dust pelletizing system, including multiple vacuum tank mechanisms, the outlet pipe line of the said multiple vacuum tank mechanisms is connected with vacuum switching unit separately, the said vacuum switching mechanism produces the negative pressure to operate the vacuum tank mechanism alternatively; the outlet pipeline of the vacuum groove mechanism is respectively connected with the inlet pipeline of the environment dust removing mechanism through corresponding dust removing pipelines, and the inlet pipeline is provided with a branch pipe: and one end of the nitrogen pipeline is used as a nitrogen inlet which is externally connected with a nitrogen source.
The vacuum switching unit comprises a vacuum mechanism, the vacuum mechanism is respectively communicated with the vacuum groove mechanisms through vacuum pipelines, a vacuum switching valve is arranged on the vacuum pipeline and is arranged at the joint of an outlet pipeline of the vacuum groove mechanisms and the vacuum pipelines, and the vacuum switching valve controls the vacuum groove mechanisms to be connected or disconnected with the vacuum mechanism.
And a nitrogen control valve is arranged on the nitrogen pipeline.
Compared with the prior art, the utility model has the advantages of: the utility model provides a RH vacuum tank flows sediment dust pelletizing system, when a station RH vacuum tank flows the sediment operation, another station RH vacuum tank continues vacuum operation, not only can collect the smoke and dust that produces when flowing the sediment operation, reduces the emission of particulate matter, has improved the production rhythm moreover, has reduced the sediment cost that flows.
Drawings
FIG. 1 is a schematic view of a slag flowing dust removing system of an RH vacuum tank in an embodiment of the utility model;
in the figure, 1RH vacuum tank, 2 air cooler, 3 vacuum mechanism, 4 dust removal pipeline, 5 dust removal cut-off valve, 6 vacuum switching valve, 7 nitrogen inlet, 8 nitrogen control valve, 9 environment dust removal mechanism, 9.1 inlet pipeline, 10 vacuum pipeline, 11 nitrogen pipeline.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the RH vacuum tank slag-flowing dust removal system in this embodiment includes two vacuum tank mechanisms, outlet pipelines of the two vacuum tank mechanisms are respectively connected with the vacuum switching unit, and the vacuum switching mechanism can switch between the two vacuum tank mechanisms, so that negative pressure generated by the vacuum switching unit alternately operates the vacuum tank mechanisms. The outlet pipelines of the vacuum groove mechanisms are also respectively connected with the inlet pipelines 9.1 of the environment dust removing mechanism 9 through the corresponding dust removing pipelines 4. The inlet pipeline 9.1 is divided into branch pipes: one end of the nitrogen pipeline 11 and one end of the nitrogen pipeline 11 are used as a nitrogen inlet 7, a nitrogen control valve 8 is arranged on the nitrogen pipeline 11, and the nitrogen inlet 7 is externally connected with a nitrogen source. The nitrogen control valve 8 is used for controlling the flow rate of nitrogen gas, and may be one of an electric valve, a pneumatic valve, a hydraulic valve, and a manual valve. The flow rate of nitrogen is 4 times of the flow rate of oxygen for the flowing slag, so that the content of oxygen in flue gas generated during the operation of the flowing slag is diluted, and the equipment is prevented from being damaged.
The vacuum switching unit comprises a vacuum mechanism 3, the vacuum mechanism 3 is respectively communicated with the two vacuum groove mechanisms through a vacuum pipeline 10, a vacuum switching valve 6 is arranged on the vacuum pipeline 10, the vacuum switching valve 6 is arranged at the joint of an outlet pipeline of the vacuum groove mechanisms and the vacuum pipeline 10, and the vacuum switching valve 6 controls the vacuum mechanism 3 and the vacuum groove mechanisms to be in a conducting state or a disconnecting state.
The vacuum chamber mechanism includes an RH vacuum chamber 1 and an air cooler 2.
And the dust removal pipelines 4 are respectively provided with a dust removal cut-off valve 5 for controlling the on-off of the dust removal pipelines.
Example one
The vacuum switching valve is a movable four-elbow, baffles are respectively arranged in two outer side elbows, the dust removal cut-off valve is an electric blind plate valve, and the nitrogen control valve is a pneumatic valve. When the slag flowing operation is carried out, the four elbows are moved, so that one vacuum groove mechanism is cut off from the vacuum mechanism, and the other vacuum groove mechanism is communicated with the vacuum mechanism. And opening the vacuum groove mechanism which is cut off by the vacuum mechanism to the corresponding electric blind plate valve, so that the corresponding dust removal pipeline is conducted, opening the environment dust removal mechanism, opening the pneumatic valve, and then starting slag flowing operation. The vacuum tank mechanism communicated with the vacuum mechanism continues to operate, so that the two vacuum tank mechanisms complete two operations without mutual interference.
Example two
When the vacuum groove mechanism is a single station, the vacuum switching valve is a pneumatic valve, and the vacuum switching valve realizes the connection or disconnection of the vacuum mechanism and the vacuum groove mechanism. The dust removal cut-off valve is an electric blind plate valve, and the nitrogen control valve is a pneumatic valve and is used for controlling the nitrogen flow, so that the nitrogen flow is 4 times of the oxygen flow for slag flowing. When the slag flowing operation is carried out, the pneumatic valve on the vacuum pipeline is closed, and the vacuum mechanism is cut off. And opening the two electric blind plate valves, opening the environment dust removal mechanism, opening the pneumatic valve on the nitrogen pipeline, and then starting to perform slag flowing operation on the two vacuum groove mechanisms.
EXAMPLE III
When the vacuum groove mechanism is a single station, the vacuum switching valve is a hydraulic valve, and the vacuum switching valve realizes the connection or disconnection of the vacuum mechanism and the vacuum groove mechanism. The dust removal stop valve is an electric blind plate valve, and the nitrogen control valve is a pneumatic valve. When the slag flowing operation is carried out, the pneumatic valve on the vacuum pipeline is closed, and the vacuum mechanism is cut off. And opening the two electric blind plate valves, opening the environment dust removal mechanism, opening the pneumatic valve on the nitrogen pipeline, and then starting to perform slag flowing operation on the two vacuum groove mechanisms.
Example four
The vacuum switching valve is a movable four-elbow, baffles are respectively arranged in two outer side elbows, the dust removal cut-off valve is a manual blind plate valve, and the nitrogen control valve is a pneumatic valve. When the slag flowing operation is carried out, the four elbows are moved, so that one vacuum groove mechanism is cut off from the vacuum mechanism, and the other vacuum groove mechanism is communicated with the vacuum mechanism. And opening the vacuum groove mechanism which is cut off by the vacuum mechanism to the corresponding manual blind plate valve, so that the corresponding dust removal pipeline is conducted, opening the environment dust removal mechanism, opening the pneumatic valve, and then starting slag flowing operation. The vacuum tank mechanism communicated with the vacuum mechanism continues to operate, so that the two vacuum tank mechanisms complete two operations without mutual interference.
When this application flows the sediment operation to a station RH vacuum tank, another station RH vacuum tank continues vacuum operation, not only can collect the smoke and dust that produces when flowing the sediment operation, reduces the emission of particulate matter, has improved the production rhythm moreover, has reduced the sediment cost that flows.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (3)
1. The utility model provides a RH vacuum tank flows sediment dust pelletizing system which characterized in that: the vacuum tank switching mechanism is characterized by comprising a plurality of vacuum tank mechanisms, wherein outlet pipelines of the plurality of vacuum tank mechanisms are respectively connected with a vacuum switching unit, and negative pressure generated by the vacuum switching mechanism alternately operates the vacuum tank mechanisms; the outlet pipeline of the vacuum groove mechanism is respectively connected with the inlet pipeline of the environment dust removing mechanism through corresponding dust removing pipelines, and the inlet pipeline is provided with a branch pipe: and one end of the nitrogen pipeline is used as a nitrogen inlet which is externally connected with a nitrogen source.
2. The RH vacuum tank slag runner dust removal system of claim 1, wherein: the vacuum switching unit comprises a vacuum mechanism, the vacuum mechanism is respectively communicated with the vacuum groove mechanisms through vacuum pipelines, a vacuum switching valve is arranged on the vacuum pipeline and is arranged at the joint of an outlet pipeline of the vacuum groove mechanisms and the vacuum pipelines, and the vacuum switching valve controls the vacuum groove mechanisms to be connected or disconnected with the vacuum mechanism.
3. The system for removing the slag from the RH vacuum tank as claimed in claim 1, wherein: and a nitrogen control valve is arranged on the nitrogen pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220778248.0U CN217757543U (en) | 2022-04-06 | 2022-04-06 | Slag flowing dust removal system of RH vacuum tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220778248.0U CN217757543U (en) | 2022-04-06 | 2022-04-06 | Slag flowing dust removal system of RH vacuum tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217757543U true CN217757543U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220778248.0U Active CN217757543U (en) | 2022-04-06 | 2022-04-06 | Slag flowing dust removal system of RH vacuum tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217757543U (en) |
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2022
- 2022-04-06 CN CN202220778248.0U patent/CN217757543U/en active Active
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