CN220269412U - Structure for cooling vertical-lift flue by using compressed air - Google Patents
Structure for cooling vertical-lift flue by using compressed air Download PDFInfo
- Publication number
- CN220269412U CN220269412U CN202321743210.0U CN202321743210U CN220269412U CN 220269412 U CN220269412 U CN 220269412U CN 202321743210 U CN202321743210 U CN 202321743210U CN 220269412 U CN220269412 U CN 220269412U
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- CN
- China
- Prior art keywords
- compressed air
- flue
- outlet
- water jacket
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 18
- 239000000498 cooling water Substances 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003546 flue gas Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 239000004744 fabric Substances 0.000 abstract description 10
- 239000000779 smoke Substances 0.000 abstract description 7
- 238000004880 explosion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229910001152 Bi alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000295146 Gallionellaceae Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a structure for cooling a vertical-lift flue by using compressed air, wherein a cooling water jacket is arranged outside the vertical-lift flue, and a flue gas outlet of the vertical-lift flue is communicated with a bag-type dust remover; the structure comprises a compressed air pipeline and a compressed air fan; the outlet of the compressed air pipeline is communicated with the inlet of the cooling water jacket, and the outlet of the cooling water jacket is communicated with the inlet of the bag-type dust collector through an outlet pipeline. The utility model is based on the original structure of the karst furnace flue, improves the structure cooled by compressed air, does not need to modify the karst furnace flue, can avoid explosion accidents caused by water leakage into the karst furnace during traditional water cooling, can further increase the dryness of smoke dust bonded on a cloth bag, prolongs the service lives of a keel and the cloth bag, has strong practicability and wide application range.
Description
Technical Field
The utility model relates to the technical field of cooling of a flue of a Kaldo furnace, in particular to a structure for cooling a vertical flue by using compressed air.
Background
The decoppered anode slime is dried and then is respectively smelted, blown and refined with sodium carbonate, quartz sand, lead oxide and coke powder by metering into a Kaldo furnace. The lead-bismuth alloy has low melting point, can infinitely dissolve gold and silver in a molten state, can play a role in capturing gold and silver, and in order to ensure that the gold and the silver are completely dissolved in lead liquid, the smelting temperature must be controlled to be higher than 1063 ℃, and the temperature of flue gas generated by smelting reaches 1100-1200 ℃ in actual operation. Because the furnace is in a periodic working state, oxidation, reduction, deslagging and alloy discharging, when the furnace is in oxidation and reduction periods, the smoke at 1200-1300 ℃ enters the flue, and the smoke disappears when the alloy is discharged, a large amount of cold air passes through the flue at the moment, the temperature is rapidly reduced to 300-500 ℃, and the process is repeated, so that the horn mouth lining plate is deformed and cracked. The karl dor flue adopts the carbon steel water cooling structure, sets up the promotion cooling water pump in the stokehold to let in the horn mouth water jacket, the cooling water flows through the cooling water jacket of whole flue, and finally the cooling water is discharged from the flue top, and flows back to circulating water pipe, and the flue can make the flue gas cool down rapidly through water cooling, makes the refractory casting material of flue inner wall be difficult for droing, extension flue inner wall's life.
However, the welding seam of the existing carbon steel water-cooling structure is easily corroded by sulfate reducing bacteria and iron bacteria in circulating water, so that leaked water flows into the furnace along the flue, explosion reaction can be rapidly generated between the water and molten liquid, and the problems of great potential safety hazard and the like are brought to site operation.
Disclosure of Invention
The utility model aims to provide a structure for cooling a vertical flue by using compressed air.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a structure that uses compressed air to cool a vertical lift flue, the outside of which is provided with a cooling water jacket, and the flue gas outlet of the vertical lift flue is communicated with a bag-type dust remover; the structure comprises a compressed air pipeline and a compressed air fan; the outlet of the compressed air pipeline is communicated with the inlet of the cooling water jacket, and the outlet of the cooling water jacket is communicated with the inlet of the bag-type dust collector through an outlet pipeline.
As a preferable scheme, the bottom of the cooling water jacket is provided with three inlets along the circumferential direction, and the outlet of the compressed air pipeline is communicated with the three inlets of the cooling water jacket through a mechanical four-way joint.
As a preferable scheme, an outlet of the cooling water jacket is provided with a gas thermometer, and a pneumatic valve is arranged on the outlet pipeline; the gas thermometer is in communication connection with the central control equipment, and the central control equipment is in control connection with the pneumatic valve.
As a preferred solution, a filter is provided on the compressed air duct.
The utility model has the beneficial effects that: the utility model is based on the original structure of the karst furnace flue, improves the structure cooled by compressed air, does not need to modify the karst furnace flue, can avoid explosion accidents caused by water leakage into the karst furnace during traditional water cooling, can further increase the dryness of smoke dust bonded on a cloth bag, prolongs the service lives of a keel and the cloth bag, has strong practicability and wide application range.
Drawings
FIG. 1 is a schematic diagram of a prior art kardol furnace uptake stack;
FIG. 2 is a schematic view of a structure of cooling a flue using compressed air according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of electrical component connection according to an embodiment of the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, and it should be noted that, while the present embodiment provides a detailed implementation and a specific operation process on the premise of the present technical solution, the protection scope of the present utility model is not limited to the present embodiment.
The embodiment provides a structure for cooling a vertical flue by using compressed air, as shown in fig. 1, a cooling water jacket 2 is arranged outside the vertical flue 1, and a flue gas outlet of the vertical flue 1 is communicated with a bag-type dust collector (the connection relationship between the bag-type dust collector and the vertical flue is not shown in the figure). As shown in fig. 2, the structure comprises a compressed air pipeline 3 and a compressed air fan (not shown in the figure); the outlet of the compressed air pipeline 3 is communicated with the inlet 21 of the cooling water jacket 2, and the outlet 22 of the cooling water jacket 2 is communicated with the inlet of the bag-type dust collector 4 through the outlet pipeline 5.
In this embodiment, the bottom of the cooling water jacket 2 is provided with three inlets 21 along the circumferential direction, and the outlet of the compressed air pipe 3 and the three inlets 21 of the cooling water jacket 2 are communicated through a mechanical four-way. Specifically, flange connection is used between the three inlets of the outlet of the compressed air pipeline and the cooling water jacket and the mechanical four-way joint.
In this embodiment, an outlet of the cooling water jacket 2 is provided with a gas thermometer, and the outlet pipeline 5 is provided with a pneumatic valve; as shown in fig. 3, the gas thermometer is communicatively connected to a central control device that is controllably connected to the pneumatic valve.
In this embodiment, can set up the filter on compressed air pipeline for moisture and impurity in the filtration compressed air avoid moisture in the compressed air and impurity and the refractory casting material of straight-up flue outer wall to take place the reaction at high temperature, influence straight-up flue's life.
The working principle of the structure of the present embodiment using compressed air to cool the uptake flue is as follows: in the smelting and converting process by using a Kaldo furnace, high-temperature flue gas is discharged into a vertical flue, and dust is removed by a bag-type dust remover. In the process, the compression fan is started, compressed air enters the cooling water jacket 2 through the compressed air pipeline 3, flows through the whole cooling water jacket 2, and brings the temperature of the flue gas out. The gas temperature of the outlet of the cooling water jacket is monitored in real time by the gas thermometer, when the gas temperature of the outlet of the cooling water jacket is higher than 350 ℃, the pneumatic valve is controlled by the central control equipment in an interlocking way, the opening of the pneumatic valve is increased, so that the outflow amount of compressed air is increased, and high-temperature gas can flow out more quickly. When the temperature is lower than 250 ℃, the central control equipment interlocks and controls the opening of the pneumatic valve to restore to the normal value, so that the compressed wind energy fully fills the whole cooling water jacket, and the cooling effect of the compressed wind is ensured.
The high-temperature gas discharged from the cooling water jacket enters the cloth bag dust remover, so that the dryness of the smoke dust adsorbed by the cloth bag can be increased, the smoke dust adsorbed by the cloth bag can be separated from the cloth bag as far as possible after being beaten by pulse gas, the cloth bag and the keels are prevented from being corroded by substances contained in the smoke dust, the service lives of the cloth bag and the keels are further prolonged, and meanwhile, the operation efficiency of equipment is also improved.
Various modifications and variations of the present utility model will be apparent to those skilled in the art in light of the foregoing teachings and are intended to be included within the scope of the following claims.
Claims (4)
1. The structure of the vertical-lift flue is characterized in that compressed air is used for cooling the vertical-lift flue, a cooling water jacket (2) is arranged outside the vertical-lift flue (1), and a flue gas outlet of the vertical-lift flue (1) is communicated with a bag-type dust remover; the structure is characterized by comprising a compressed air pipeline (3) and a compressed air fan; the outlet of the compressed air pipeline (3) is communicated with the inlet (21) of the cooling water jacket (2), and the outlet (22) of the cooling water jacket (2) is communicated with the inlet of the bag-type dust collector (4) through the outlet pipeline (5).
2. The structure of cooling the uptake shaft by using compressed air according to claim 1, wherein the bottom of the cooling water jacket (2) is provided with three inlets (21) along the circumferential direction, and the outlet of the compressed air duct (3) and the three inlets (21) of the cooling water jacket (2) are communicated by a mechanical four-way.
3. The structure for cooling the uptake flue by using compressed air according to claim 1, wherein the outlet of the cooling water jacket (2) is provided with a gas thermometer, and the outlet pipe (5) is provided with a pneumatic valve; the gas thermometer is in communication connection with the central control equipment, and the central control equipment is in control connection with the pneumatic valve.
4. The structure for cooling a uptake shaft using compressed air of claim 1, wherein a filter is provided on the compressed air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321743210.0U CN220269412U (en) | 2023-07-05 | 2023-07-05 | Structure for cooling vertical-lift flue by using compressed air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321743210.0U CN220269412U (en) | 2023-07-05 | 2023-07-05 | Structure for cooling vertical-lift flue by using compressed air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220269412U true CN220269412U (en) | 2023-12-29 |
Family
ID=89318845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321743210.0U Active CN220269412U (en) | 2023-07-05 | 2023-07-05 | Structure for cooling vertical-lift flue by using compressed air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220269412U (en) |
-
2023
- 2023-07-05 CN CN202321743210.0U patent/CN220269412U/en active Active
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