CN217296381U - Pneumatic ash conveying device for conveying coal - Google Patents
Pneumatic ash conveying device for conveying coal Download PDFInfo
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- CN217296381U CN217296381U CN202221045103.6U CN202221045103U CN217296381U CN 217296381 U CN217296381 U CN 217296381U CN 202221045103 U CN202221045103 U CN 202221045103U CN 217296381 U CN217296381 U CN 217296381U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides a pneumatic ash conveying device of defeated coal, relates to the technical field of defeated coal, and its structure is: the device comprises a middle bin tank, wherein a material level meter is arranged on the middle bin tank, a feeding pipe is arranged in the middle of the top end of the middle bin tank, a feeding valve is arranged on the feeding pipe, an air inlet pipe and an exhaust pipe are respectively arranged on the middle bin tank at two sides of the feeding pipe, and an air inlet valve and an exhaust valve are respectively arranged on the air inlet pipe and the exhaust pipe; the middle bin is characterized in that a discharge pipe is arranged at the bottom end of the middle bin, a discharge valve is arranged on the discharge pipe, a blow assisting pipe is connected to the discharge pipe at the rear end of the discharge valve, and a blow assisting valve is arranged on the blow assisting pipe. The beneficial effects of the utility model reside in that: simple structure, it is nimble convenient to use, through the sharing buggy of strength ash conveying device, can avoid stopping up the problem of unable normal follow-up work because of powder process system trouble or whole coal injection system when needing to shut down to overhaul.
Description
Technical Field
The utility model relates to a coal conveying's technical field especially relates to a coal conveying's strength ash handling device.
Background
The blast furnace coal injection system mainly comprises a coal pulverizing system, an injection system, an air supply system and the like, coal powder is stored to a coal powder bin through a coal grinding machine, the coal powder bin is connected with the injection system, the air supply system supplies air for the injection system, and the injection system is connected with a blast furnace to perform blast furnace coal injection.
At present, a blast furnace coal injection system is an independent production line from coal powder preparation to coal powder injection, and when a coal powder preparation system in the blast furnace coal injection system breaks down or needs to be stopped for maintenance, all the systems need to be stopped, so that the whole production line cannot operate for production.
SUMMERY OF THE UTILITY MODEL
To the deficiency of the prior art, the utility model provides a pneumatic ash conveying device for conveying coal, which solves the problem.
The utility model provides a defeated grey device of strength of coal conveying, its structure is: the device comprises a middle bin tank, wherein a material level meter is arranged on the middle bin tank, a feeding pipe is arranged in the middle of the top end of the middle bin tank, a feeding valve is arranged on the feeding pipe, an air inlet pipe and an exhaust pipe are respectively arranged on the middle bin tank at two sides of the feeding pipe, and an air inlet valve and an exhaust valve are respectively arranged on the air inlet pipe and the exhaust pipe; the bottom end of the middle bin tank is provided with a discharge pipe, a discharge valve is arranged on the discharge pipe, a blowing assisting pipe is connected to the discharge pipe at the rear end of the discharge valve, and a blowing assisting valve is arranged on the blowing assisting pipe.
The feeding pipe is connected with one pulverized coal bunker, and the discharging pipe is connected with the other pulverized coal bunker.
The air inlet pipe and the blowing-assisting pipe are connected with an air compressor.
The exhaust pipe is connected with the dust remover.
And a pressure sensor is arranged in the intermediate bin.
And the feeding valve, the discharging valve, the air inlet valve, the exhaust valve and the blowing assisting valve are controlled to be opened and closed through a control program.
The utility model discloses a use method does: when a coal pulverizing system in a blast furnace coal injection system breaks down or needs to be shut down for maintenance, pulverized coal in a pulverized coal bin in another blast furnace coal injection system is conveyed into the pulverized coal bin of the coal injection system through a pneumatic ash conveying device, so that the coal injection system can normally run.
The specific use method comprises the following steps: opening an exhaust valve, opening a feed valve, controlling feeding through a level meter or feeding time, closing the feed valve and the exhaust valve after the material in the intermediate storage bin is full or reaches the expected set feeding time, opening an air inlet valve, opening a blowing-assistant valve when the pressure in the intermediate storage bin reaches a set value range, opening a discharge valve when the pressure in the intermediate storage bin reaches the upper limit of the set value range, closing the air inlet valve when the pressure in the storage bin reaches a set empty bin pressure value, closing the discharge valve, closing the blowing-assistant valve after 5 seconds, and emptying the pulverized coal in a discharge pipe; and then opening the exhaust valve and the feeding valve to perform the circulation operation.
The beneficial effects of the utility model reside in that: simple structure, it is nimble convenient to use, through the sharing buggy of strength ash conveying device, can avoid stopping up the problem of unable normal follow-up work because of powder process system trouble or whole coal injection system when needing to shut down to overhaul.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a connection diagram of the present invention;
in the figure: 1. the device comprises a middle bin tank, 2, a material level meter, 3, an air inlet valve, 4, an air inlet pipe, 5, a feeding pipe, 6, a feeding valve, 7, an exhaust pipe, 8, an exhaust valve, 9, a discharge valve, 10, a discharge pipe, 11, a blowing assisting pipe, 12, a blowing assisting valve, 13, a No. 1 mill, 14, a No. 1 pulverized coal bin, 15, a No. 1 blast furnace, 16, a No. 2 mill, 17, a No. 2 pulverized coal bin and 18, a No. 2 blast furnace.
Detailed Description
Example 1
As shown in fig. 1-2, the utility model provides a pneumatic ash conveying device for conveying coal, which has the structure that: the device comprises a middle bin tank, wherein a material level meter 2 is arranged on the middle bin tank, a feeding pipe 5 is arranged in the middle of the top end of the middle bin tank, a feeding valve 6 is arranged on the feeding pipe 5, an air inlet pipe 4 and an exhaust pipe 7 are respectively arranged on the middle bin tank on two sides of the feeding pipe 5, and an air inlet valve 3 and an exhaust valve 8 are respectively arranged on the air inlet pipe 4 and the exhaust pipe 7; a discharge pipe 10 is arranged at the bottom end of the middle bin tank, a discharge valve 9 is arranged on the discharge pipe 10, an auxiliary blowing pipe 11 is connected to the discharge pipe 10 at the rear end of the discharge valve 9, and an auxiliary blowing valve 12 is arranged on the auxiliary blowing pipe 11.
The feeding pipe 5 is connected with a No. 1 pulverized coal bunker, the discharging pipe 10 is connected with a No. 2 pulverized coal bunker, the front end of the No. 1 pulverized coal bunker is connected with a No. 1 grinding machine 13, and the No. 1 pulverized coal bunker is used for a No. 1 blast furnace 15; the front end of the No. 2 pulverized coal cabin is connected with a No. 2 grinding machine 16, and the No. 2 pulverized coal cabin is used for supplying a No. 2 blast furnace 18.
The air inlet pipe 4 and the blowing-assisting pipe 11 are connected with an air compressor.
The exhaust pipe 7 is connected with a dust remover.
And a pressure sensor is arranged in the intermediate bin.
The charging valve 6, the discharging valve 9, the air inlet valve 3, the exhaust valve 8 and the blow-assisting valve 12 are controlled to be opened and closed through a control program.
When the No. 2 grinding machine 16 system is in failure or needs to be shut down for maintenance, the pulverized coal in the No. 1 pulverized coal bunker 14 is shared to the No. 2 pulverized coal bunker 17 through the pneumatic ash conveying device, so that the No. 2 blast furnace 18 can normally operate.
The specific use method comprises the following steps: firstly, opening an exhaust valve 8, delaying 5 seconds to open a feeding valve 6, controlling feeding through a charge level indicator 2 or feeding time, closing the feeding valve 6 and the exhaust valve 8 after the material in an intermediate bin 1 is full or reaches the expected set feeding time for 30 seconds, delaying 3 seconds to open an air inlet valve 3, opening a blowing-assistant valve 12 when the pressure in the intermediate bin 1 reaches a set value range (0.18 MP-0.45 MP) of 0.18MP, opening a discharging valve 9 when the pressure in the intermediate bin 1 reaches the upper limit of 0.45MP of the set value range (0.18 MP-0.45 MP), closing the air inlet valve 3 when the pressure in the bin reaches a set empty bin pressure value of 0.05MP, then closing the discharging valve 9, and closing the blowing-assistant valve 12 after delaying 5 seconds to empty the pulverized coal in a discharging pipe 10; the exhaust valve 8 and the feed valve 6 are opened again to perform the above-described circulation operation.
Claims (6)
1. The utility model provides a defeated pneumatic ash conveying device of coal which characterized in that: the device comprises a middle bin tank, wherein a material level meter is arranged on the middle bin tank, a feeding pipe is arranged in the middle of the top end of the middle bin tank, a feeding valve is arranged on the feeding pipe, an air inlet pipe and an exhaust pipe are respectively arranged on the middle bin tank at two sides of the feeding pipe, and an air inlet valve and an exhaust valve are respectively arranged on the air inlet pipe and the exhaust pipe; the middle bin is characterized in that a discharge pipe is arranged at the bottom end of the middle bin, a discharge valve is arranged on the discharge pipe, a blow assisting pipe is connected to the discharge pipe at the rear end of the discharge valve, and a blow assisting valve is arranged on the blow assisting pipe.
2. The pneumatic coal conveying ash device according to claim 1, characterized in that: the feeding pipe is connected with one pulverized coal bunker, and the discharging pipe is connected with the other pulverized coal bunker.
3. The pneumatic coal conveying ash device according to claim 1, characterized in that: the air inlet pipe and the blowing-assisting pipe are connected with an air compressor.
4. The pneumatic coal conveying ash device according to claim 1, wherein: the exhaust pipe is connected with the dust remover.
5. The pneumatic coal conveying ash device according to claim 1, wherein: and a pressure sensor is arranged in the intermediate bin.
6. The pneumatic coal conveying ash device according to claim 1, characterized in that: and the feed valve, the discharge valve, the air inlet valve, the exhaust valve and the blow-assisting valve are controlled to be switched on and off through a control program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221045103.6U CN217296381U (en) | 2022-05-05 | 2022-05-05 | Pneumatic ash conveying device for conveying coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221045103.6U CN217296381U (en) | 2022-05-05 | 2022-05-05 | Pneumatic ash conveying device for conveying coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217296381U true CN217296381U (en) | 2022-08-26 |
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ID=82917085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221045103.6U Active CN217296381U (en) | 2022-05-05 | 2022-05-05 | Pneumatic ash conveying device for conveying coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217296381U (en) |
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2022
- 2022-05-05 CN CN202221045103.6U patent/CN217296381U/en active Active
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