CN218932190U - Automatic blockage clearing device for coal injection pipeline filter - Google Patents
Automatic blockage clearing device for coal injection pipeline filter Download PDFInfo
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- CN218932190U CN218932190U CN202222829155.9U CN202222829155U CN218932190U CN 218932190 U CN218932190 U CN 218932190U CN 202222829155 U CN202222829155 U CN 202222829155U CN 218932190 U CN218932190 U CN 218932190U
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Abstract
The utility model discloses an automatic blockage removing device for a coal injection pipeline filter, which comprises a coal powder pipeline and a coal powder filter, wherein the coal powder pipeline comprises a coal powder pipeline main pipe, two coal powder pipeline branch pipes are arranged in parallel in the middle of the coal powder pipeline main pipe, the two coal powder filters are respectively arranged on the two coal powder pipeline branch pipes, the coal powder pipeline branch pipes are provided with coal powder control valves, the coal powder filter is respectively connected with a high-pressure nitrogen pipeline and a blockage removing sewage pipeline, and a pressure detecting device is arranged on the coal powder pipeline main pipe. The automatic blockage removing device for the filter can realize automatic detection by a computer and judge whether the coal dust filter is blocked or not; when the system detects that the pulverized coal filter is blocked, the computer can automatically execute the filter blocking removal operation, thereby saving labor and improving the labor environment of operators.
Description
Technical Field
The utility model relates to a blast furnace coal injection system, in particular to an automatic blockage cleaning device for a coal injection pipeline filter.
Background
In the coal injection system, coal dust collected by the coal pulverizing system is filtered by a coal dust sieve or a wood dust separator, then enters the injection system, and is injected into a blast furnace or other devices by the injection system. During actual production, the pulverized coal screen and the sawdust separator are difficult to filter out the scraps in the pulverized coal, and faults such as gun blockage and pipeline blockage often occur in the blowing process. In order to avoid similar faults, a filter is usually additionally arranged on the pulverized coal pipeline, and an operator periodically and manually cleans impurities in the filter. If the coal dust contains more impurities, the coal dust needs to be cleaned once per hour, so that a large amount of labor force is occupied, and the production cost of the coal dust is increased.
Disclosure of Invention
The utility model aims to: the utility model aims to provide an automatic blockage clearing device for a coal injection pipeline filter, which realizes the operations of automatic detection, automatic blockage clearing and the like of the coal powder pipeline filter, reduces the labor requirement and improves the labor environment.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an automatic clear stifled device of coal injection pipeline filter, includes coal powder pipeline, coal powder filter, its characterized in that: the device is characterized in that the pulverized coal pipeline comprises a pulverized coal pipeline main pipe, two pulverized coal pipeline branch pipes are arranged in parallel in the middle of the pulverized coal pipeline main pipe, two pulverized coal filters are respectively arranged on the two pulverized coal pipeline branch pipes, pulverized coal control valves are arranged on the pulverized coal pipeline branch pipes, the pulverized coal filters are respectively connected with a nitrogen injection pipeline and a blockage-removing sewage pipeline, the nitrogen injection pipeline is connected with a high-pressure nitrogen gas supply mechanism, and a pressure detection device is arranged on the pulverized coal pipeline main pipe.
Further, the pressure detection device comprises two pressure transmitters which are respectively arranged at the positions of the coal powder pipeline main pipe, which are close to the coal powder pipeline branch pipes.
Further, the pulverized coal control valve is arranged at the feeding end and the discharging end of the pulverized coal filter, and comprises a manual ball valve and a pneumatic ball valve.
Further, a nitrogen control valve is arranged on the nitrogen injection pipeline.
Further, the nitrogen control valve comprises a manual ball valve and a pneumatic ball valve.
Furthermore, a drain control valve is arranged on the blockage-removing drain pipe.
Further, the blowdown control valve comprises a manual ball valve and a pneumatic ball valve.
Furthermore, the blockage-removing sewage pipeline is connected with a grinder or a sewage device.
The beneficial effects are that:
(1) By adopting the automatic filter blockage removing device, the automatic detection of a computer can be realized, and whether the coal dust filter is blocked or not can be judged;
(2) When the system detects a blockage of the pulverized coal filter, the computer may automatically perform a filter cleaning operation. Thereby saving the labor and improving the labor environment of operators.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1-a pressure transmitter; 2-a manual ball valve; 3-pneumatic ball valve; 4-a coal dust filter; 5-clearing and blocking the sewage pipes; 6-nitrogen blowing pipeline; 7-coal powder pipeline main pipe and 8-coal powder pipeline branch pipe.
The specific embodiment is as follows:
the utility model is further explained below with reference to the drawings.
As shown in fig. 1, the automatic blockage removing device for the coal injection pipeline filter comprises a coal powder pipeline and a coal powder filter 4, wherein the coal powder pipeline comprises a coal powder pipeline main pipe 7, two coal powder pipeline branch pipes 8 are arranged in parallel in the middle of the coal powder pipeline main pipe 7, the two coal powder filters 4 are respectively arranged on the two coal powder pipeline branch pipes 8, the coal powder pipeline branch pipes 8 are provided with coal powder control valves, the coal powder control valves are arranged at the feeding end and the discharging end of the coal powder filter 4, the coal powder control valves 4 comprise a manual ball valve 2 and a pneumatic ball valve 3, the coal powder pipeline branch pipes 8 can be manually cut off through the manual ball valve 2, the blockage removing or the overhauling of the coal powder pipeline branch pipes 8 is facilitated, and the pneumatic ball valve 3 is controlled by a computer and can automatically cut off the coal powder pipeline branch pipes 8.
The pulverized coal filter 4 is respectively connected with a nitrogen injection pipeline 6 and a blockage-removing sewage pipeline 5. The nitrogen injection pipeline 6 is connected with a high-pressure nitrogen supply mechanism, and a nitrogen control valve is arranged on the nitrogen injection pipeline 6 and comprises a manual ball valve and a pneumatic ball valve. The nitrogen gas injection pipeline 6 can be manually cut off through the manual ball valve 2, the nitrogen gas injection pipeline 6 is conveniently cleared and blocked or overhauled, and the pneumatic ball valve 3 is controlled by a computer and can automatically cut off the nitrogen gas injection pipeline 6. The blockage-removing sewage drain pipe 5 is connected with a grinder or a sewage drain device. The impurities discharged from the pulverized coal filter 4 can be recycled after being fed into a mill for grinding, or can be discharged through a sewage discharge device. Similarly, a drain control valve is arranged on the clear-blockage drain pipe 5, and the drain control valve comprises a manual ball valve and a pneumatic ball valve. The blockage-removing sewage pipes 5 can be manually cut off through the manual ball valves 2, the blockage-removing sewage pipes 5 can be conveniently removed or overhauled, and the pneumatic ball valves 3 can automatically cut off the blockage-removing sewage pipes 5 through computer control.
The parameter specifications of the manual ball valve and the pneumatic ball valve in different pipelines can be adjusted according to actual needs. In the embodiment, a valve of DN100 is adopted for the pulverized coal pipeline branch pipe, a valve of DN32 is adopted for the nitrogen injection pipeline, and a valve of DN50 is adopted for the blockage removal sewage pipeline.
The pressure detection device is arranged on the coal powder pipeline main pipe 1 and used for detecting whether the coal powder filter 4 on the coal powder pipeline branch pipe 8 is blocked or not, and comprises two pressure transmitters 1, wherein the two pressure transmitters 1 are respectively arranged at the positions, close to the coal powder pipeline branch pipe 8, of the coal powder pipeline main pipe 7.
During production, the two pulverized coal pipeline branch pipes 8 work alternately, the two pressure transmitters 1 detect pressure values of the pulverized coal pipeline main pipe 1, which are close to two ends of the pulverized coal pipeline branch pipes 8, in real time, and whether the filter is blocked is judged according to the difference value of the two pressure transmitters 1.
As shown in fig. 1, when the upper pulverized coal pipe branch pipe works, the lower pulverized coal pipe branch pipe is in a blockage clearing or standby state. When the blocking of the upper pulverized coal filter is detected, the computer automatically opens the pneumatic ball valve of the lower pulverized coal pipeline branch pipe, closes the pneumatic ball valve of the upper pulverized coal pipeline branch pipe, the lower pulverized coal pipeline branch pipe is in a working state, the computer automatically opens the pneumatic ball valve of the upper nitrogen injection pipeline and the pneumatic ball valve of the upper blocking and sewage disposal pipeline, the upper pulverized coal pipeline branch pipe is switched to the blocking and sewage disposal pipeline, after the blocking and sewage disposal operation reaches a specified time, the pneumatic ball valve of the upper nitrogen injection pipeline and the pneumatic ball valve of the upper blocking and sewage disposal pipeline are automatically closed, and the cleaning of the upper pulverized coal pipeline branch pipe is completed and is in a standby state. In the manner described above, both filters are cycled.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. The utility model provides an automatic clear stifled device of coal injection pipeline filter, includes coal powder pipeline, coal powder filter, its characterized in that: the device comprises a coal powder pipeline main pipe, two coal powder pipeline branch pipes are arranged in parallel in the middle of the coal powder pipeline main pipe, two coal powder filters are respectively arranged on the two coal powder pipeline branch pipes, coal powder control valves are arranged on the coal powder pipeline branch pipes, the coal powder filters are respectively connected with a nitrogen injection pipeline and a blockage-removing sewage pipeline, the nitrogen injection pipeline is connected with a high-pressure nitrogen gas supply mechanism, and a pressure detection device is arranged on the coal powder pipeline main pipe;
the pressure detection device comprises two pressure transmitters which are respectively arranged at the positions of the coal powder pipeline main pipe, which are close to the coal powder pipeline branch pipes.
2. The automatic blockage cleaning device for the coal injection pipeline filter according to claim 1, wherein: the coal powder control valve is arranged at the feeding end and the discharging end of the coal powder filter and comprises a manual ball valve and a pneumatic ball valve.
3. The automatic blockage cleaning device for the coal injection pipeline filter according to claim 1, wherein: and a nitrogen control valve is arranged on the nitrogen injection pipeline.
4. The automatic blockage removing device for the coal injection pipeline filter according to claim 3, wherein: the nitrogen control valve comprises a manual ball valve and a pneumatic ball valve.
5. The automatic blockage cleaning device for the coal injection pipeline filter according to claim 1, wherein: and a drain control valve is arranged on the blockage-removing drain pipe.
6. The automatic blockage removing device for the coal injection pipeline filter according to claim 5, wherein: the blowdown control valve comprises a manual ball valve and a pneumatic ball valve.
7. The automatic blockage cleaning device for the coal injection pipeline filter according to claim 1, wherein: the blockage-removing sewage drain pipe is connected with the mill or the sewage drain device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222829155.9U CN218932190U (en) | 2022-10-26 | 2022-10-26 | Automatic blockage clearing device for coal injection pipeline filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222829155.9U CN218932190U (en) | 2022-10-26 | 2022-10-26 | Automatic blockage clearing device for coal injection pipeline filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218932190U true CN218932190U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222829155.9U Active CN218932190U (en) | 2022-10-26 | 2022-10-26 | Automatic blockage clearing device for coal injection pipeline filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218932190U (en) |
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2022
- 2022-10-26 CN CN202222829155.9U patent/CN218932190U/en active Active
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