CN218626904U - Continuous ash conveying structure for fly ash of ash bucket of coal economizer - Google Patents
Continuous ash conveying structure for fly ash of ash bucket of coal economizer Download PDFInfo
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- CN218626904U CN218626904U CN202222241568.5U CN202222241568U CN218626904U CN 218626904 U CN218626904 U CN 218626904U CN 202222241568 U CN202222241568 U CN 202222241568U CN 218626904 U CN218626904 U CN 218626904U
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Abstract
The utility model discloses a continuous ash conveying structure of economizer ash bucket flying dust, including economizer ash bucket, ash conveying storehouse pump and ash conveying pipe, be equipped with manual gate valve and pneumatic swing valve in proper order below the ash discharge opening of economizer ash bucket, ash conveying pipe is including ash pipe horizontal segment and the vertical section of ash pipe, and the vertical section of ash pipe is connected with ash pipe horizontal segment through wear-resisting elbow, is equipped with between the input port of ash pipe horizontal segment and ash conveying storehouse pump and helps the group valve that blows, and the end of the vertical section of ash pipe inserts and unloads the ash bin. The utility model discloses a row's ash hole department in boiler economizer ash bucket bottom sets up manual slide valve and pneumatic swing valve, through carrying the storehouse pump after, send to the ash storehouse through pneumatic conveying, and the transport distance is the utmost is tens meters, and wear-resisting ash pipe and wear-resisting elbow quantity are less, can greatly reduce cost. The elevation difference between the outlet of the ash bucket of the coal economizer and the top of the slag bin is only more than ten meters, and the ash conveying pipeline is only provided with a vertical descending section and a horizontal conveying section, so that the flowing resistance is small, the fly ash conveying is facilitated, and the ash is not easy to accumulate.
Description
Technical Field
The utility model relates to an industry auxiliary production equipment technical field, concretely relates to be applied to continuous ash conveying structure of economizer ash bucket flying dust.
Background
The coal is burned in the boiler of the thermal power generating set to generate flue gas, and after the flue gas flows through each heating surface of the boiler, part of fly ash in the flue gas is cooled and deposited in an ash bucket of the economizer. This portion of the deposited fly ash must be removed in a timely manner or otherwise interfere with the proper operation of the plant. The conventional cleaning method is to convey the fly ash to an ash warehouse through a pneumatic ash conveying system, and the common pneumatic conveying system comprises a bin pump, a long-distance wear-resistant ash conveying pipeline, a fluidized air system, a blowing and blocking system and the like, but the equipment investment and the operation cost are high.
Specifically, in practical application, due to the defects in structural design and layout, the distance between the economizer and the ash silo is usually designed to be as long as one or two hundred meters, so that the wear-resistant ash conveying pipe and the wear-resistant elbow are used in a large amount, and the pipe frame is usually required to be independently made, and after the ash pipe is lowered to a horizontal conveying section (about 5 meters high), the ash pipe needs to climb to the top of the ash silo again, so that the flow resistance is large, and the ash is easy to accumulate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's defect, provide a simple structure, design more reasonable, can reduce equipment cost, reduce and carry the resistance, be favorable to the continuous ash conveying structure of economizer ash bucket flying dust that the flying dust was carried.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an economizer ash bucket flying dust is ash conveying structure in succession, is connected including economizer ash bucket, ash conveying storehouse pump and ash conveying pipe, ash conveying storehouse pump and the row's ash mouth of economizer ash bucket bottom, and ash conveying pipe is connected with ash conveying storehouse pump, and ash conveying pipe is connected to ash storehouse, its characterized in that through unloading the ash case: a manual gate valve is arranged below the ash discharge port of the coal economizer ash bucket, a pneumatic swing valve is arranged between the manual gate valve and the ash conveying bin pump, and the coal economizer ash bucket is connected with the ash conveying bin pump through the manual gate valve and the pneumatic swing valve in sequence; the ash conveying pipe comprises an ash pipe horizontal section and an ash pipe vertical section, the ash pipe vertical section is connected with the ash pipe horizontal section through a wear-resistant elbow, an auxiliary blowing valve group is arranged between an input port of the ash pipe horizontal section and the ash conveying bin pump to form an auxiliary blowing structure for the ash conveying pipe, and the tail end of the ash pipe vertical section is connected into the ash discharging box.
Furthermore, a blockage removing pipe is connected to the part, close to the input port, of the horizontal section of the ash pipe outwards, the blockage removing pipe is connected back to the adjacent economizer ash bucket, and a blockage removing valve group is arranged on the blockage removing pipe to form a blockage removing structure for the ash conveying pipe.
Furthermore, the number of the economizer ash hoppers is at least two, each economizer ash hopper adopts the same installation structure, the adjacent ash conveying bin pumps are sequentially connected through serially connected ash pipes, and the horizontal section of each ash pipe is connected with the last ash conveying bin pump.
Furthermore, a blockage removing pipe is externally connected to a serial connection ash pipe between the at least two ash conveying bin pumps, the blockage removing pipe is connected back to the ash hopper of the last coal economizer adjacent to the blockage removing pipe, and a blockage removing valve group is arranged on the blockage removing pipe to form a blockage removing structure for the serial connection ash pipe.
Further, the length of the horizontal section of the ash pipe is 10-50 meters, such as 20 meters; the height (elevation) between the ash discharge port of the ash bucket of the coal economizer and the ash storehouse is 5-15 meters, such as 10 meters.
Furthermore, the horizontal sections of the ash pipes and the ash pipes connected in series are fixedly installed through a boiler steel frame, so that an additional supporting pipe frame is not needed, and the cost can be saved.
The fly ash enters an ash conveying bin pump from an ash hopper of the coal economizer, passes through each ash pipe and the wear-resistant elbow, enters an ash discharging box and is conveyed to an ash silo (a slag bin). The manual gate valve and the pneumatic swing valve are arranged for maintenance, and the blowing-assisting valve group and the blockage clearing valve group are arranged for providing guarantee for continuous pneumatic transmission.
The utility model discloses a arrange grey mouthful department and set up manual slide valve and pneumatic swing valve in boiler economizer ash bucket bottom. After passing through the conveying bin pump, the dust is conveyed to the dust bin through pneumatic conveying, the conveying distance is at most dozens of meters, the wear-resistant dust pipes and the wear-resistant elbows are small in usage, the supporting and hanging frame can be made by means of the steel frame of the boiler in the whole process, a pipe frame does not need to be made additionally, and equipment investment can be greatly reduced. And the difference between the outlet of the ash hopper of the coal economizer and the elevation of the top of the slag bin is only more than ten meters, and the ash conveying pipeline is only provided with a vertical descending section and a horizontal conveying section, so that the flowing resistance is small, the fly ash conveying is facilitated, and the ash accumulation is difficult.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a partially enlarged view of the installation structure of the blowing-aid valve block and the blockage removing valve block in fig. 1.
In the figure, 1 is an economizer ash hopper, 2 is a manual gate valve, 3 is a pneumatic swing valve, 4 is an ash conveying bin pump, 5 is a blowing-assisting valve group, 6 is a blockage removing valve group, 71 is an ash pipe horizontal section, 72 is an ash pipe vertical section, 73 is a serial ash pipe, 8 is a wear-resistant elbow, 9 is an ash unloading box, and 10 is a blockage removing pipe.
Detailed Description
In the embodiment, referring to fig. 1 and 2, the continuous ash conveying structure for the fly ash of the ash hopper of the coal economizer comprises the ash hopper 1 of the coal economizer, an ash conveying bin pump 4 and an ash conveying pipe, wherein the ash conveying bin pump 4 is connected with an ash discharge port at the bottom of the ash hopper 1 of the coal economizer, the ash conveying pipe is connected with the ash conveying bin pump 4, and the ash conveying pipe is connected to an ash silo through an ash discharge box 9; a manual gate valve 2 is arranged below a dust discharging opening of an economizer ash hopper 1, a pneumatic swing valve 3 is arranged between the manual gate valve 2 and an ash conveying bin pump 4, and the economizer ash hopper 1 is connected with the ash conveying bin pump 4 through the manual gate valve 2 and the pneumatic swing valve 3 in sequence; the ash conveying pipe comprises an ash pipe horizontal section 71 and an ash pipe vertical section 72, the ash pipe vertical section 72 is connected with the ash pipe horizontal section 71 through a wear-resistant elbow 8, a blowing-assisting valve group 5 is arranged between an input port of the ash pipe horizontal section 71 and the ash conveying bin pump 4 to form a blowing-assisting structure for the ash conveying pipe, and the tail end of the ash pipe vertical section 72 is connected to the ash discharging box 9.
A blockage removing pipe 10 is connected to the part of the horizontal section 71 of the ash pipe, which is close to the input port, and the blockage removing pipe 10 is connected back to the adjacent ash hopper 1 of the coal economizer, and a blockage removing valve group 6 is arranged on the blockage removing pipe 10 to form a blockage removing structure for the ash conveying pipe.
The coal economizer ash hopper 1 comprises at least two coal economizer ash hoppers 1, each coal economizer ash hopper 1 adopts the same installation structure, the adjacent ash conveying bin pumps 4 are sequentially connected through a serial ash pipe 73, and an ash pipe horizontal section 71 is connected with the last ash conveying bin pump 4.
A blockage cleaning pipe 10 is also connected outwards from the serial connection ash pipe 73 between at least two ash conveying bin pumps 4, the blockage cleaning pipe 10 is connected back to the adjacent last economizer ash bucket 1, and a blockage cleaning valve group 6 is arranged on the blockage cleaning pipe 10 to form a blockage cleaning structure for the serial connection ash pipe 73.
The length of the horizontal section 71 of the ash pipe is 10-50 meters, such as 20 meters; the height (elevation) between the ash discharge opening of the ash bucket 1 of the coal economizer and the ash storehouse is 5-15 meters, such as 10 meters.
The ash pipe horizontal section 71 and the ash pipes 73 connected in series are fixedly installed through a boiler steel frame, so that an additional supporting pipe frame is not needed, and the cost can be saved.
The fly ash enters an ash conveying bin pump 4 from an ash hopper 1 of the coal economizer, passes through each ash pipe and a wear-resistant elbow 8, enters an ash unloading box 9 and is conveyed to an ash silo (a slag bin). The manual gate valve 2 and the pneumatic swing valve 3 are arranged for maintenance, and the blowing-assisting valve group 5 and the blockage clearing valve group 6 are arranged for providing guarantee for continuous pneumatic transmission.
While the present invention has been described in detail, it should be understood that the present invention is not limited to the particular embodiments disclosed, but is capable of other modifications and variations.
Claims (6)
1. The utility model provides an economizer ash bucket flying dust is defeated grey structure in succession, is including economizer ash bucket, ash conveying storehouse pump and ash conveying pipe, and ash conveying storehouse pump is connected with the ash discharge mouth of economizer ash bucket bottom, and ash conveying pipe is connected with ash conveying storehouse pump, and ash conveying pipe is connected to ash storehouse, its characterized in that through unloading the ash case: a manual gate valve is arranged below the ash discharge port of the coal economizer ash bucket, a pneumatic swing valve is arranged between the manual gate valve and the ash conveying bin pump, and the coal economizer ash bucket is connected with the ash conveying bin pump through the manual gate valve and the pneumatic swing valve in sequence; the ash conveying pipe comprises an ash pipe horizontal section and an ash pipe vertical section, the ash pipe vertical section is connected with the ash pipe horizontal section through a wear-resistant elbow, a blowing-assisting valve group is arranged between an input port of the ash pipe horizontal section and the ash conveying bin pump to form a blowing-assisting structure for the ash conveying pipe, and the tail end of the ash pipe vertical section is connected into the ash discharging box.
2. The continuous ash conveying structure of the fly ash in the ash hopper of the economizer according to claim 1, wherein: the horizontal section of the ash pipe is externally connected with a blockage removing pipe close to the input port of the ash pipe, the blockage removing pipe is connected back to the adjacent economizer ash bucket, and a blockage removing valve group is arranged on the blockage removing pipe to form a blockage removing structure for the ash conveying pipe.
3. The continuous ash conveying structure of the fly ash of the ash hopper of the coal economizer according to claim 1, wherein: the coal economizer ash hopper comprises at least two coal economizer ash hoppers, each coal economizer ash hopper adopts the same installation structure, the adjacent ash conveying bin pumps are sequentially connected through serially connected ash pipes, and the horizontal section of each ash pipe is connected with the last ash conveying bin pump.
4. The continuous ash conveying structure of the fly ash of the ash hopper of the coal economizer as claimed in claim 3, wherein: a blockage cleaning pipe is externally connected to a serial connection ash pipe between at least two ash conveying bin pumps, the blockage cleaning pipe is connected back to an adjacent last economizer ash hopper, and a blockage cleaning valve group is arranged on the blockage cleaning pipe to form a blockage cleaning structure for the serial connection ash pipe.
5. The continuous ash conveying structure of the fly ash of the ash hopper of the coal economizer according to claim 1, wherein: the length of the horizontal section of the ash pipe is 10-50 meters, and the height between an ash discharge port of the ash bucket of the coal economizer and an ash storage is 5-15 meters.
6. The continuous ash conveying structure of the fly ash in the ash hopper of the economizer according to claim 3, wherein: the horizontal section of the ash pipe and each serially connected ash pipe are fixedly installed through a boiler steel frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222241568.5U CN218626904U (en) | 2022-08-25 | 2022-08-25 | Continuous ash conveying structure for fly ash of ash bucket of coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222241568.5U CN218626904U (en) | 2022-08-25 | 2022-08-25 | Continuous ash conveying structure for fly ash of ash bucket of coal economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218626904U true CN218626904U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222241568.5U Active CN218626904U (en) | 2022-08-25 | 2022-08-25 | Continuous ash conveying structure for fly ash of ash bucket of coal economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218626904U (en) |
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2022
- 2022-08-25 CN CN202222241568.5U patent/CN218626904U/en active Active
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