CN220853159U - Melting furnace ash removal system provided with spark catcher - Google Patents
Melting furnace ash removal system provided with spark catcher Download PDFInfo
- Publication number
- CN220853159U CN220853159U CN202322734061.8U CN202322734061U CN220853159U CN 220853159 U CN220853159 U CN 220853159U CN 202322734061 U CN202322734061 U CN 202322734061U CN 220853159 U CN220853159 U CN 220853159U
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- Prior art keywords
- ash
- spark
- ash removal
- melting furnace
- removal system
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- 238000002844 melting Methods 0.000 title claims abstract description 34
- 230000008018 melting Effects 0.000 title claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 35
- 238000009413 insulation Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 abstract description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 24
- 239000002245 particle Substances 0.000 abstract description 14
- 238000004880 explosion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model provides a melting furnace ash removal system provided with a spark catcher, and aims to solve the problem that the ash removal device is easy to fire when a dust removal system in the prior art processes high-temperature flue gas containing spark particles. The utility model provides a be furnished with melting furnace ash removal system of spark catcher, includes the trunk line and sets up explosion-proof valve, spark catcher, ash removal device and centrifugal fan on the trunk line, explosion-proof valve, spark catcher, ash removal device and centrifugal fan follow the air inlet end to the exhaust end of trunk line set gradually, and the exhaust end intercommunication of trunk line has the chimney of outside exhaust. The spark catcher is arranged at one side of the air inlet end of the ash removing device, so that the spark catcher can remove spark particles in high-temperature flue gas in advance, and fire disasters caused by the fact that the spark particles enter the ash removing device are avoided. The explosion-proof valve is arranged between the air inlet end of the spark catcher and the melting furnace, so that permanent deformation and flue explosion of the hearth are avoided.
Description
Technical Field
The utility model belongs to the technical field of flue gas treatment, and particularly relates to a melting furnace ash removal system provided with a spark catcher.
Background
At present, high-temperature flue gas discharged from a melting furnace of a steel mill contains more harmful substances, and the temperature is higher, if the filtering treatment is not carried out, the air can be seriously polluted, and the health of people is endangered. At present, the ash removal device is mainly adopted to filter and then discharge the high-temperature flue gas. However, a part of spark particles are also arranged in the high-temperature flue gas discharged from the melting furnace of the steel mill, and when the high-temperature flue gas containing the spark particles flows in the pipeline of the dust removing system, the high-temperature flue gas can easily enter the dust removing device of the dust removing system, so that the dust removing device is easy to fire, and the production safety of the mill is seriously affected.
Disclosure of utility model
The utility model provides a melting furnace ash removal system provided with a spark catcher, and aims to solve the problem that the ash removal device is easy to fire when a dust removal system in the prior art processes high-temperature flue gas containing spark particles.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a be furnished with melting furnace ash removal system of spark catcher, includes the trunk line and sets up explosion-proof valve, spark catcher, ash removal device and centrifugal fan on the trunk line, explosion-proof valve, spark catcher, ash removal device and centrifugal fan follow the air inlet end to the exhaust end of trunk line set gradually, and the exhaust end intercommunication of trunk line has the chimney of outside exhaust.
The further scheme is as follows: the spark catcher comprises a shell, an air inlet communicated with the explosion-proof valve is arranged at the upper end of the shell, an air outlet communicated with the ash removing device is arranged on the side surface of the shell, and the air inlet and the air outlet are mutually perpendicular; the shell is rotationally provided with guide vanes, and an ash collecting hopper is arranged below the shell.
Based on the technical scheme: after the high-temperature flue gas containing spark particles enters the shell from the air inlet of the shell, the spark particles collide with the guide vanes and annihilate to become dust which enters the dust collecting hopper, so that the high-temperature flue gas without the spark particles is discharged from the air outlet of the shell.
The further scheme is as follows: the ash removing system of the melting furnace provided with the spark catcher further comprises an ash transporting vehicle arranged at the lower end of the ash collecting hopper, an ash discharging pipe is arranged between the ash transporting vehicle and the ash collecting hopper, and an ash discharging valve is arranged between the upper end of the ash discharging pipe and the ash collecting hopper.
Based on the technical scheme: the ash transporting vehicle is used for containing dust in the ash collecting hopper so as to transport the dust to be treated, and the ash discharging valve is used for switching on and off an outlet at the lower end of the ash collecting hopper.
The further scheme is as follows: a material level gauge is arranged above the ash discharge pipe.
Based on the technical scheme: the level gauge can be used to monitor whether the ash handling vehicle is full.
The further scheme is as follows: and the outer sides of the ash collecting hopper and the shell are provided with heat insulation layers.
Based on the technical scheme: because the high-temperature flue gas temperature is higher, therefore, the outer layers of the dust collection hopper and the shell are required to be provided with heat insulation layers for heat insulation treatment.
The further scheme is as follows: an expansion joint is arranged on the main pipeline, and heat preservation cotton is arranged on the outer side of the expansion joint.
Based on the technical scheme: because the main pipeline is used for conveying high-temperature flue gas and is easy to produce the effect of thermal expansion and cold contraction, the expansion joint is arranged on the main pipeline and is used for compensating the change of the main pipeline caused by thermal expansion and cold contraction.
The further scheme is as follows: the main pipeline is provided with a cold air supplementing device for blowing cold air into the main pipeline, and the cold air supplementing device is positioned between the spark catcher and the ash removing device.
Based on the technical scheme: the cold air supplementing device can further cool the temperature of the high-temperature flue gas by blowing cold air into the main pipeline.
The further scheme is as follows: and the air inlet end and the air exhaust end of the ash removing device are respectively provided with a temperature sensor.
Based on the technical scheme: the temperature sensor is used for monitoring the temperature of the high-temperature flue gas at the air inlet end and the air exhaust end of the ash removing device in real time.
The further scheme is as follows: the air inlet end and the air exhaust end of the ash removing device are respectively provided with a pressure sensor.
The further scheme is as follows: and a dust concentration detector is arranged on the chimney.
Based on the technical scheme: the dust concentration monitoring device is used for monitoring the dust concentration in the gas exhausted by the chimney, so that the operation condition of the dust removal system can be reflected.
The beneficial effects of the utility model are as follows:
The air inlet end of the main pipeline is used for being connected with the melting furnace, so that high-temperature flue gas containing spark particles discharged by the melting furnace enters the dust removal system, and the spark catcher is arranged on one side of the air inlet end of the ash removal device, so that the spark catcher can remove the spark particles in the high-temperature flue gas in advance, and the spark particles are prevented from entering the ash removal device to cause fire. The explosion-proof valve is arranged between the air inlet end of the spark catcher and the melting furnace, so that air can be supplemented into the boiler and the flue in advance when the boiler is implosion, and permanent deformation of a hearth and explosion of the flue are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first directional configuration of a melting furnace ash removal system equipped with a spark arrestor according to the utility model.
FIG. 2 is a schematic view of a second directional configuration of a melting furnace ash removal system equipped with a spark arrestor according to this utility model.
Fig. 3 is a schematic view of the spark arrestor of the present utility model in a first orientation.
Fig. 4 is a schematic view of a second direction of the spark arrestor of the present utility model.
The reference numerals in the figures illustrate:
1-a main pipeline; 2-an explosion-proof valve; 3-spark arrestor; 31-a housing; 311-an air inlet; 312-exhaust outlet; 32-an ash collecting hopper; 33-ash conveying vehicle; 34-ash discharge pipe; 35-an ash valve; 4-ash removal device; 5-chimney; 6-a melting furnace; 7-a centrifugal fan.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be obtained by a person skilled in the art without creative efforts, are included in the protection scope of the present utility model based on the embodiments of the present utility model.
As shown in fig. 1 to 2, the present embodiment provides a melting furnace ash removal system configured with a spark catcher, which comprises a main pipe 1, and an explosion-proof valve 2, a spark catcher 3, an ash removal device 4 and a centrifugal fan 7 which are arranged on the main pipe 1, wherein the explosion-proof valve 2, the spark catcher 3, the ash removal device 4 and the centrifugal fan 7 are sequentially arranged from an air inlet end to an air exhaust end of the main pipe 1, and the air exhaust end of the main pipe 1 is communicated with a chimney 5 for exhausting air outwards. Specifically, the explosion-proof valve 2 is arranged between the melting furnace 6 and the dust removal system. A centrifugal fan 7 (shown in fig. 2 as a mounted position of the centrifugal fan 7) is used to discharge flue gases from the stack 5.
As shown in fig. 3 and fig. 4, as a specific embodiment of the spark arrestor 3, the spark arrestor 3 includes a casing 31, for convenience of installation of the guide vane, the casing 31 may be configured as a volute casing 31, an air inlet 311 communicating with the explosion-proof valve 2 is provided at an upper end of the casing 31, an air outlet communicating with the ash cleaning device 4 is provided at a side surface of the casing 31, and the air inlet 311 and the air outlet are vertically provided; the shell 31 is rotationally provided with guide vanes, an ash collecting hopper 32 is arranged below the shell 31, and the shell 31 and the ash collecting hopper 32 are connected in a sealing mode. To facilitate the discharge of ash, the ash collection hopper 32 may be provided in a shape having a large upper end and a small lower end. After the high-temperature flue gas containing spark particles discharged from the melting furnace 6 enters the shell 31 from the air inlet 311 of the shell 31, the spark particles collide with the guide vanes and annihilate to become dust, and the dust enters the dust collection hopper 32.
In this embodiment, as shown in fig. 3 and fig. 4, in order to facilitate timely transferring of dust in the dust collecting hopper 32, the ash cleaning system of the melting furnace provided with the spark catcher provided in this embodiment further includes an ash transporting vehicle 33 disposed at the lower end of the dust collecting hopper 32, an ash discharging pipe 34 is disposed between the ash transporting vehicle 33 and the dust collecting hopper 32, and an ash discharging valve 35 is disposed between the upper end of the ash discharging pipe 34 and the dust collecting hopper 32, and the dust in the dust collecting hopper 32 can be controlled to fall into the ash transporting vehicle 33 by opening or closing the ash discharging valve 35. The opening or closing of the ash valve 35 can be controlled by a motor, so that the operation is convenient, and the damage to human beings caused by the high temperature of the shell 31 of the spark catcher 3 can be avoided. Specifically, in order to facilitate transporting the ash transporting vehicle 33, a forklift can be used for transporting the ash transporting vehicle, and a fork position matched with the forklift is arranged below the ash transporting vehicle 33.
In order to facilitate monitoring of whether the ash handling vehicle 33 is full or not, and avoid overflow of dust, the embodiment is provided with a level gauge above the ash discharge pipe 34, and the level gauge can be used for monitoring the height in the ash handling vehicle 33 in real time, so that a new ash handling vehicle 33 can be replaced in time after the ash handling vehicle is full.
In this embodiment, the heat insulation layers are disposed on the outer sides of the ash collection hopper 32 and the housing 31, and the heat insulation layer is required to be disposed on the outer layers of the ash collection hopper 32 and the housing 31 for heat insulation treatment because the high temperature flue gas exhausted from the melting furnace 6 has a higher temperature. On the one hand, the high-temperature radiation of the shell 31 of the spark arrester 3 into the surrounding environment can be reduced, and on the other hand, the service life of the shell 31 of the spark arrester 3 can be prevented from being reduced due to the fact that the temperature of the shell 31 is raised and lowered too fast.
The main pipe 1 connected with the melting furnace 6 needs to transmit high-temperature flue gas, and needs to face heating and cooling back and forth in long-term use, so in the embodiment, an expansion joint is arranged on the main pipe 1, and heat-insulating cotton is arranged on the outer side of the expansion joint. The expansion joint can be arranged at the joint of the pipelines and is used for compensating the change of the main pipeline 1 caused by heat expansion and cold contraction. The heat preservation cotton plays a role in heat preservation and heat insulation, further protects the expansion joint from the short service cycle caused by the abrupt change of the temperature, and prolongs the service life of the expansion joint.
In this embodiment, because the high-temperature flue gas temperature is higher, so need cool it, this embodiment be equipped with on the trunk line 1 and be used for blowing cold wind mending cold wind device to the trunk line 1 in, mend cold wind device is located spark catcher 3 with ash removal device 4 between, mend cold wind device through blowing in cold wind to the trunk line 1 in, can further cool off the temperature of high-temperature flue gas.
In this embodiment, in order to facilitate timely monitoring of the temperature and pressure of the air inlet end and the air outlet end of the ash removal device 4, the air inlet end and the air outlet end of the ash removal device 4 are both provided with temperature sensors, and the air inlet end and the air outlet end of the ash removal device 4 are both provided with pressure sensors. The dust removal system is conveniently and timely regulated and controlled by monitoring the parameters.
The chimney 5 finally discharges the gas to the external environment, so the chimney 5 is provided with a dust concentration detector for monitoring the dust concentration in the gas discharged from the chimney 5, thereby reflecting the operation condition of the dust removal system.
Description of working principle:
When passing through the spark catcher 3, the high-temperature flue gas discharged from the melting furnace 6 collides with the guide vane of the spark catcher 3 and is annihilated, becomes dust and falls into the dust collecting hopper 32, and the high-temperature flue gas continuously transmitted backwards by the spark catcher 3 is further purified when passing through the ash cleaning device 4 and finally discharged from the chimney 5.
The utility model is not limited to the above-mentioned alternative embodiments, on the premise of not contradicting each other, can combine arbitrarily between every scheme; any person who is in the light of the present utility model can obtain other products in various forms, however, any changes in shape or structure are within the scope of the present utility model as defined by the claims.
Claims (10)
1. The utility model provides a be furnished with melting furnace ash removal system of spark trapper, its characterized in that includes the trunk line and sets up explosion-proof valve, spark trapper, ash removal device and centrifugal fan on the trunk line, explosion-proof valve, spark trapper, ash removal device and centrifugal fan follow the air inlet end to the exhaust end of trunk line set gradually, and the exhaust end intercommunication of trunk line has the chimney of outside exhaust.
2. The ash removal system of a melting furnace provided with a spark catcher as claimed in claim 1, wherein the spark catcher comprises a shell, an air inlet communicated with an explosion-proof valve is arranged at the upper end of the shell, an air outlet communicated with an ash removal device is arranged on the side surface of the shell, and the air inlet and the air outlet are mutually perpendicular; the shell is rotationally provided with guide vanes, and an ash collecting hopper is arranged below the shell.
3. The ash removal system of a melting furnace equipped with a spark catcher as set forth in claim 2, further comprising an ash handling vehicle disposed at a lower end of the ash collection hopper, an ash discharge pipe being disposed between the ash handling vehicle and the ash collection hopper, and an ash discharge valve being disposed between an upper end of the ash discharge pipe and the ash collection hopper.
4. A melting furnace ash removal system equipped with a spark arrester as set forth in claim 3, wherein a level gauge is provided above the ash discharge pipe.
5. The ash removal system of a melting furnace equipped with a spark arrester of claim 2, wherein the ash collection hopper and the outer side of the housing are both provided with an insulating layer.
6. The ash removal system of a melting furnace equipped with a spark catcher as set forth in claim 1, wherein an expansion joint is provided on the main pipe, and heat insulation cotton is provided on the outer side of the expansion joint.
7. The ash removal system of a melting furnace equipped with a spark catcher as set forth in claim 1, wherein a cold air supplementing device for blowing cold air into the main pipe is provided on the main pipe, and the cold air supplementing device is located between the spark catcher and the ash removal device.
8. The ash removal system for a melting furnace equipped with a spark arrester of claim 1, wherein the ash removal device is provided with temperature sensors at both the air inlet end and the air outlet end.
9. The ash removal system of a melting furnace equipped with a spark catcher as set forth in claim 1, wherein the air intake end and the air exhaust end of the ash removal device are both provided with pressure sensors.
10. The ash removal system for a melting furnace equipped with a spark arrester of claim 1, wherein a dust concentration detector is provided on the chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322734061.8U CN220853159U (en) | 2023-10-11 | 2023-10-11 | Melting furnace ash removal system provided with spark catcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322734061.8U CN220853159U (en) | 2023-10-11 | 2023-10-11 | Melting furnace ash removal system provided with spark catcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220853159U true CN220853159U (en) | 2024-04-26 |
Family
ID=90779235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322734061.8U Active CN220853159U (en) | 2023-10-11 | 2023-10-11 | Melting furnace ash removal system provided with spark catcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220853159U (en) |
-
2023
- 2023-10-11 CN CN202322734061.8U patent/CN220853159U/en active Active
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