CN215162875U - Clean gas heat tracing system of blast furnace gas dust remover - Google Patents
Clean gas heat tracing system of blast furnace gas dust remover Download PDFInfo
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- CN215162875U CN215162875U CN202120894858.2U CN202120894858U CN215162875U CN 215162875 U CN215162875 U CN 215162875U CN 202120894858 U CN202120894858 U CN 202120894858U CN 215162875 U CN215162875 U CN 215162875U
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Abstract
The clean gas heat tracing system of the blast furnace gas dust remover comprises a dust remover, wherein a clean gas branch pipe is arranged on a clean gas main pipe of the dust remover and is connected with the clean gas main pipe for heat tracing; one end of the heat tracing coil pipe of each ash bucket is communicated with the clean gas main pipe for heat tracing, and the other end of the heat tracing coil pipe is communicated with the clean gas recovery main pipe for heat tracing; the clean gas recovery main pipe for heat tracing is connected with a clean gas low-pressure pipe network. The utility model discloses utilize the clean coal gas after dust remover self purifies as the air supply of companion's heat facility, the energy saving. The temperature of the clean gas source is stable, the phenomenon of hardening and solidification of the coal ash in the ash hopper is avoided, and the ash discharging efficiency is improved. The clean gas passing through the heat tracing system can be completely recycled to a low-pressure gas pipe network, and energy is not wasted.
Description
Technical Field
The utility model relates to an environmental protection field specifically is clean coal gas companion heating system of blast furnace gas dust remover.
Background
The blast furnace gas dust remover is mainly used for purifying blast furnace gas, the temperature of the blast furnace gas is about 180 ℃, and the dust remover is provided with a plurality of box bodies. The coal ash generated in the purification process is settled and accumulated in an ash hopper at the bottom of the box body, and the coal ash contains water vapor. The ash bucket has the advantages that the temperature difference between the upper layer and the lower layer is huge due to the fact that a large amount of coal ash is accumulated in the ash bucket, the temperature of the coal ash at the bottom is lower than 100 ℃, water vapor in the coal ash is caused to condense, the coal ash is hardened and solidified after meeting water, the hardened and solidified coal ash is blocked in the ash bucket, and the ash bucket cannot normally unload ash. The outer wall of each ash bucket of the existing dust remover is provided with a steam coil pipe (with the temperature of 180 ℃) for heat tracing, and steam is shunted to the steam coil pipe of each ash bucket by a steam main pipe. The steam header pipe is provided with a DN80 stop valve, a DN25 stop valve is arranged at the steam inlet of each ash bucket, a DN25 stop valve and a DN25 drain valve are arranged at the steam outlet (condensate water port) of each ash bucket, and the discharged condensate water is directly discharged into the drainage ditch after being gathered by the header pipe. The steam consumption is about 10 tons per hour, the steam consumption is large, and meanwhile, condensed water is directly discharged into a drainage ditch, so that huge energy waste is caused. The steam gas source is supplied by an external factory, the stability of the steam temperature cannot be ensured, when the steam temperature and the pressure are lower than 100 ℃, the normal heat tracing cannot be carried out, the coal ash in the ash hopper is solidified, the ash in the ash hopper cannot be discharged normally, and the normal production is influenced.
CN112143844A blast furnace damping-down diffusion coal gas purification recovery device, discloses that the filter is communicated with a coal gas recovery pipeline. The gas recovery pipeline is provided with a stop valve and is communicated with a clean gas pipeline network, the purification recovery rate is close to 100 percent, but the gas recovery pipeline only recovers the gas and does not accompany heat.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a clean gas heat tracing system of a blast furnace gas dust remover, which comprises a dust remover, wherein a clean gas branch pipe is arranged on a clean gas main pipe of the dust remover and is connected with the clean gas main pipe for heat tracing; one end of the heat tracing coil pipe of each ash bucket is communicated with the clean gas main pipe for heat tracing, and the other end of the heat tracing coil pipe is communicated with the clean gas recovery main pipe for heat tracing; the clean gas recovery main pipe for heat tracing is connected with a clean gas low-pressure pipe network.
Furthermore, a blind plate valve for cutting off is arranged on the clean gas branch pipe.
The further heat tracing coil pipe is spirally arranged on the ash bucket.
Furthermore, a stop valve is arranged at the inlet of the heat tracing coil pipe, and a stop valve is arranged at the outlet of the heat tracing coil pipe.
The utility model discloses utilize the clean coal gas after dust remover self purifies as the air supply of companion's heat facility, the energy saving. The temperature of the clean gas source is stable, the phenomenon of hardening and solidification of the coal ash in the ash hopper is avoided, and the ash discharging efficiency is improved. The clean gas passing through the heat tracing system can be completely recycled to a low-pressure gas pipe network, and energy is not wasted.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a clean gas main pipe, 2, a clean gas branch pipe, 3, a clean gas main pipe for heat tracing, 4, a stop valve, 5, a dust remover, 6, an ash hopper, 7, a heat tracing coil pipe, 8, a clean gas recovery main pipe for heat tracing and 9, a blind plate valve.
Detailed Description
As shown in fig. 1, the clean gas heat tracing system of the blast furnace gas dust remover comprises a dust remover 5, a clean gas branch pipe 2 is arranged on a clean gas main pipe 1 of the dust remover, one path of clean gas branch pipe 2 is led out from the clean gas main pipe 1 of the blast furnace gas dust remover, and the clean gas purified by the blast furnace gas dust remover is used as a gas source of the heat tracing system. The clean gas branch pipe 2 is provided with a blind valve 9 for cutting off, and then the clean gas is connected to the clean gas main pipe 3 for heat tracing. The clean gas branch pipe 2 is connected with a clean gas main pipe 3 for heat tracing; one end of a heat tracing coil pipe 7 of each ash bucket 6 is communicated with a clean gas main pipe 3 for heat tracing, and the other end is communicated with a clean gas recycling main pipe 8 for heat tracing. The heat tracing coil pipe 7 is spirally arranged on the ash bucket 6, so that the heat tracing stability is improved. The inlet of the heat tracing coil pipe 7 is provided with a stop valve 4, and the outlet of the heat tracing coil pipe is also provided with the stop valve 4. The clean gas recovery header pipe 8 for heat tracing is connected with a clean gas low-pressure pipe network. The gas passing through the heat tracing coil pipe 7 is gathered by the clean gas recovery main pipe 8 for heat tracing and is connected into a clean gas low-pressure pipe network, so that the energy is not wasted.
The temperature of the blast furnace gas is about 180 ℃, the utility model discloses the blast furnace gas after the purification can regard as the companion's of companion's heat system heat supply, again can recycle, has characteristics such as the system is reliable, temperature stability, energy saving, normal production is not influenced.
Claims (5)
1. Clean coal gas heat tracing system of blast furnace gas dust remover, including the dust remover, its characterized in that: a clean gas branch pipe is arranged on a clean gas main pipe of the dust remover and is connected with a clean gas main pipe for heat tracing; one end of the heat tracing coil pipe of each ash bucket is communicated with the clean gas main pipe for heat tracing, and the other end of the heat tracing coil pipe is communicated with the clean gas recovery main pipe for heat tracing; the clean gas recovery main pipe for heat tracing is connected with a clean gas low-pressure pipe network.
2. The clean gas heat tracing system of a blast furnace gas dust collector of claim 1, wherein: and a blind plate valve for cutting is arranged on the clean gas branch pipe.
3. The clean gas heat tracing system of a blast furnace gas dust collector of claim 1, wherein: the heat tracing coil pipe is spirally arranged on the ash bucket.
4. The net gas heat tracing system of a blast furnace gas dust collector of claim 3, characterized in that: and a stop valve is arranged at the inlet of the heat tracing coil pipe.
5. The net gas heat tracing system of a blast furnace gas dust collector of claim 3, characterized in that: and a stop valve is arranged at the outlet of the heat tracing coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120894858.2U CN215162875U (en) | 2021-04-28 | 2021-04-28 | Clean gas heat tracing system of blast furnace gas dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120894858.2U CN215162875U (en) | 2021-04-28 | 2021-04-28 | Clean gas heat tracing system of blast furnace gas dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215162875U true CN215162875U (en) | 2021-12-14 |
Family
ID=79364696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120894858.2U Active CN215162875U (en) | 2021-04-28 | 2021-04-28 | Clean gas heat tracing system of blast furnace gas dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215162875U (en) |
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2021
- 2021-04-28 CN CN202120894858.2U patent/CN215162875U/en active Active
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