CN117225090A - System and process for treating flue gas of titanium sponge reduction tank - Google Patents
System and process for treating flue gas of titanium sponge reduction tank Download PDFInfo
- Publication number
- CN117225090A CN117225090A CN202311318786.7A CN202311318786A CN117225090A CN 117225090 A CN117225090 A CN 117225090A CN 202311318786 A CN202311318786 A CN 202311318786A CN 117225090 A CN117225090 A CN 117225090A
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- CN
- China
- Prior art keywords
- flue gas
- gas treatment
- titanium sponge
- reduction tank
- filter
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 239000003546 flue gas Substances 0.000 title claims abstract description 124
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 67
- 239000000779 smoke Substances 0.000 claims abstract description 28
- 238000001704 evaporation Methods 0.000 claims abstract description 18
- 230000008020 evaporation Effects 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 239000002912 waste gas Substances 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 238000002955 isolation Methods 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 238000010926 purge Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000000889 atomisation Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 9
- 238000004880 explosion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a system and a process for treating flue gas of a titanium sponge reduction tank, wherein the treatment system comprises a flue gas treatment pipeline and a vacuum pump, and the front end of the flue gas treatment pipeline is communicated with an exhaust port of the titanium sponge reduction tank; the vacuum pump is arranged at the rear end of the flue gas treatment pipeline; the device comprises a smoke treatment pipeline, a titanium sponge reduction tank, a vacuum pump, a filter, an evaporative cooling tower and an evaporation cooling tower, wherein the smoke treatment pipeline is positioned between the titanium sponge reduction tank and the vacuum pump, the filter and the evaporative cooling tower are sequentially arranged from the front end to the rear end, the filter is used for filtering and recycling particulate matters in smoke, and the evaporative cooling tower is used for absorbing and treating waste gas in the smoke and cooling the smoke. Compared with the prior art, the method has the advantages that the useful substances in the smoke are recovered and the harmful substances are treated through the collection and treatment of the smoke generated by the titanium sponge reduction tank, and the smoke is cooled, so that the smoke emission is harmless to the environment.
Description
Technical Field
The invention belongs to the technical field of titanium sponge manufacturing, and particularly relates to a system and a process for treating flue gas of a titanium sponge reduction tank.
Background
Titanium and titanium alloys are now widely used in various industries due to their excellent properties. Currently, the magnesium reduction method for producing titanium sponge is an important method for producing metallic titanium in industry, and the main equipment used in the method is a titanium sponge reduction tank. In the process of producing the titanium sponge by using the titanium sponge reduction tank, smoke is generated, the temperature of the smoke is high, the smoke is acidic and has sparks, and in the prior art, the smoke is only cooled and then discharged, and the smoke is not subjected to centralized treatment, so that the influence on the environment can be caused.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a system and a process for treating flue gas in a titanium sponge reduction tank, which are used for solving the problem that the flue gas generated in the titanium sponge reduction tank in the prior art is not effectively treated and pollutes the environment.
To achieve the above object and other related objects, the present invention provides the following technical solutions:
a titanium sponge reduction tank flue gas treatment system comprising:
the front end of the flue gas treatment pipeline is communicated with the exhaust port of the titanium sponge reduction tank;
the vacuum pump is arranged at the rear end of the flue gas treatment pipeline;
the device comprises a smoke treatment pipeline, a titanium sponge reduction tank, a vacuum pump, a filter, an evaporative cooling tower and an evaporation cooling tower, wherein the smoke treatment pipeline is positioned between the titanium sponge reduction tank and the vacuum pump, the filter and the evaporative cooling tower are sequentially arranged from the front end to the rear end, the filter is used for filtering and recycling particulate matters in smoke, and the evaporative cooling tower is used for absorbing and treating waste gas in the smoke and cooling the smoke.
Optionally, an emergency discharge valve and an explosion-proof isolation valve are arranged between the titanium sponge reduction tank and the filter on the flue gas treatment pipeline.
Optionally, a nitrogen purging port is arranged on the flue gas treatment pipeline between the emergency discharge valve and the explosion-proof isolation valve, and the nitrogen purging port is connected with a nitrogen source.
Optionally, the flue gas treatment pipeline is located between the explosion-proof isolation valve and the filter, between the filter and the evaporative cooling tower, and between the evaporative cooling tower and the vacuum pump are all provided with temperature monitoring sensors.
Optionally, pressure monitoring sensors are arranged on the flue gas treatment pipeline between the explosion-proof isolation valve and the filter and between the evaporative cooling tower and the vacuum pump.
Optionally, the flue gas treatment pipeline is connected with a differential pressure monitor, one end of the differential pressure monitor is connected to the flue gas treatment pipeline between the explosion-proof isolation valve and the filter, and the other end of the differential pressure monitor is connected to the flue gas treatment pipeline between the filter and the evaporative cooling tower.
Optionally, the flue gas treatment pipeline is connected with an oxyhydrogen analyzer, one end of the oxyhydrogen analyzer is connected to the flue gas treatment pipeline between the filter and the evaporation cooling tower, and the other end of the oxyhydrogen analyzer is connected to the flue gas treatment pipeline between the evaporation cooling tower and the vacuum pump.
Optionally, a valve is installed at the rear end of the explosion-proof isolation device on the flue gas treatment pipeline, and the filter is a high-efficiency filter.
Optionally, the pressure of the vacuum pump is between-30 Kpa and-40 Kpa, and the evaporative cooling tower is a high-efficiency evaporative cooling tower.
Correspondingly, the invention also provides a titanium sponge reduction tank flue gas treatment process, which adopts the titanium sponge reduction tank flue gas treatment system as described in any one of the above, and comprises the following steps:
collecting the flue gas generated from the titanium sponge reduction tank through a flue gas treatment pipeline;
filtering the flue gas through a filter, filtering and separating solid particles in the flue gas, and entering the filter at the temperature of less than 500 ℃;
cooling the flue gas by an evaporation cooling tower in an atomization cooling mode, wherein the temperature of the cooled flue gas is less than 70 ℃, and the wastewater generated by cooling the flue gas by the evaporation cooling tower is discharged to a factory for treatment;
and (5) exhausting the treated flue gas through a vacuum pump.
As described above, according to the system and the process for treating the flue gas of the titanium sponge reduction tank, the flue gas generated by the titanium sponge reduction tank is collected through the flue gas treatment pipeline, and the particulate matters in the flue gas are filtered by using the filter, so that if the particulate matters contain other metal ions, the particulate matters can be recovered; then, the evaporation cooling tower is used for carrying out atomization cooling on the flue gas, so that the waste gas in the flue gas and the atomized gas react and are treated, and the wastewater generated by treatment can be discharged to a factory for unified treatment; finally, the treated flue gas is discharged through a vacuum pump at the rear end of the flue gas treatment pipeline. Compared with the prior art, the method has the advantages that the useful substances in the smoke are recovered and the harmful substances are treated through the collection and treatment of the smoke generated by the titanium sponge reduction tank, and the smoke is cooled, so that the smoke emission is harmless to the environment.
Drawings
FIG. 1 is a schematic diagram of an exemplary titanium sponge reduction tank flue gas treatment system according to the present invention.
The reference numerals in the embodiments include:
the device comprises a titanium sponge reduction tank 10, a flue gas treatment pipeline 11, an emergency discharge valve 12, a nitrogen purging port 13, an explosion-proof isolation valve 14, a valve 15, a temperature monitoring sensor 16, a pressure monitoring sensor 17, a filter 18, an evaporative cooling tower 19, a vacuum pump 20, a differential pressure monitor 21 and an oxyhydrogen analyzer 22.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
It should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like numbers refer to like elements throughout.
Referring to fig. 1 in combination to the specific structure of the flue gas treatment system of the titanium sponge reduction tank 10 in the present invention, the flue gas treatment system of the titanium sponge reduction tank 10 comprises:
a flue gas treatment pipeline 11, wherein the front end of the flue gas treatment pipeline 11 is communicated with an exhaust port of the titanium sponge reduction tank 10;
a vacuum pump 20, wherein the vacuum pump 20 is arranged at the rear end of the flue gas treatment pipeline 11;
the flue gas treatment pipeline 11 is positioned between the titanium sponge reduction tank 10 and the vacuum pump 20, a filter 18 and an evaporative cooling tower 19 are sequentially arranged from the front end to the rear end, the filter 18 is used for filtering and recycling particulate matters in flue gas, and the evaporative cooling tower 19 is used for absorbing and treating waste gas in the flue gas and cooling the flue gas.
Specifically, the front end of the flue gas treatment pipeline 11 is provided with a connector pipe, and is connected with the exhaust port of the titanium sponge reduction tank 10 through the connector pipe orifice, wherein the direction of flue gas entering is the front end of the flue gas treatment pipeline 11, and the direction of flue gas flowing out is the rear end of the flue gas treatment pipeline 11. According to the actual running condition of the processing system, an online analyzer, a differential pressure sensor, a valve group, an electric control system and a pipeline system can be configured, and corresponding civil engineering is configured according to the system equipment.
In the actual implementation, the high-temperature furnace gas generated from the titanium sponge reduction tank 10 needs to be discharged with exhaust gas 50 times/120 h, and the discharge pressure range is as follows: 5-200 KPa, the interface pipe is connected with the tank body exhaust port of the titanium sponge reduction tank 10, the fine filtration is carried out through the filter 18, the dust-free gas is cooled by the evaporation cooling tower 19 and then is discharged by the vacuum pump 20, and the wastewater generated by cooling the flue gas in the evaporation cooling tower 19 is discharged to a factory for centralized treatment. It should be noted that, in the exhaust gas discharging process, different opening degrees of the valve 15 (based on final debugging data) can be selected according to the discharge pressure of the tank body, and the whole system needs to be subjected to nitrogen purging replacement before starting up and after stopping.
In some embodiments, an emergency discharge valve 12 and an explosion-proof isolation valve 14 are arranged on the flue gas treatment pipeline 11 between the titanium sponge reduction tank 10 and the filter 18. For example, as shown in fig. 1, the emergency discharge valve 12 and the explosion-proof isolation valve 14 are configured for system protection, and the flue gas treatment pipeline 11 is subjected to explosion venting treatment in time.
In some embodiments, a nitrogen purge port 13 is disposed on the flue gas treatment pipeline 11 between the emergency discharge valve 12 and the explosion-proof isolation valve 14, and the nitrogen purge port 13 is connected to a nitrogen source. For example, as shown in fig. 1, nitrogen is introduced into the flue gas treatment pipeline 11 to protect the treatment process of flue gas, and meanwhile, high-pressure inert gas is adopted to purge the pipeline, so that the problem of pipeline blockage can be solved, and in the scheme, high-purity nitrogen (inert shielding gas) is adopted as a system replacement and purging gas source.
In some embodiments, temperature monitoring sensors 16 are disposed on the flue gas treatment pipeline 11 between the explosion protection isolation valve 14 and the filter 18, between the filter 18 and the evaporative cooling tower 19, and between the evaporative cooling tower 19 and the vacuum pump 20. For example, as shown in fig. 1, the temperatures of each section of the flue gas treatment pipeline 11 can be monitored, and if the temperature on a certain section of the flue gas treatment pipeline 11 does not reach the preset temperature, an accident may occur, and the flue gas treatment pipeline can be timely treated through temperature monitoring.
In some embodiments, pressure monitoring sensors 17 are disposed on the flue gas treatment pipeline 11 between the explosion-proof isolation valve 14 and the filter 18, and between the evaporative cooling tower 19 and the vacuum pump 20. For example, as shown in fig. 1, the pressure of the flue gas treatment pipeline 11 can be monitored, the condition of the flue gas treatment pipeline 11 can be known in time, and if an abnormality occurs, the flue gas treatment pipeline can be treated in time.
In some embodiments, a differential pressure monitor is connected to the flue gas treatment duct 11, one end of the differential pressure monitor is connected to the flue gas treatment duct 11 between the explosion-proof isolation valve 14 and the filter 18, and the other end of the differential pressure monitor is connected to the flue gas treatment duct 11 between the filter 18 and the evaporative cooling tower 19. For example, as shown in fig. 1, the differential pressure monitor can monitor the differential pressure of two sections of flue gas treatment pipelines 11 and regulate and control each device in time.
In some embodiments, a oxyhydrogen analyzer 22 is connected to the flue gas treatment pipe 11, one end of the oxyhydrogen analyzer 22 is connected to the flue gas treatment pipe 11 between the filter 18 and the evaporation cooling tower 19, and the other end of the oxyhydrogen analyzer 22 is connected to the flue gas treatment pipe 11 between the evaporation cooling tower 19 and the vacuum pump 20. For example, as shown in fig. 1, the oxyhydrogen analyzer 22 analyzes the oxygen content and the hydrogen content of the two-stage flue gas treatment pipeline 11 on line, and alarms and stops for treatment when exceeding a set value.
In some embodiments, a valve 15 is installed on the flue gas treatment pipeline 11 at the rear end of the explosion-proof isolation device, and the filter 18 is a high-efficiency filter 18. For example, as shown in fig. 1, the valve 15 can close the rear flue gas treatment pipeline 11 in time when the explosion venting condition is needed, the high-efficiency filter 18 can perform fine filtration, and the high-temperature-resistant metal is adopted as a filter material, so that the filtering area is at least 40 square meters.
In some embodiments, the vacuum pump 20 has a pressure of-30 Kpa to-40 Kpa, and the evaporative cooling tower 19 is a high efficiency evaporative cooling tower 19. For example, as shown in fig. 1, the efficient evaporative cooling tower 19 can be matched with an evaporative cooling control system, a spraying power device and an alkali liquor configuration tank, and the shell 316L with the maximum working temperature less than 600 ℃ is arranged outdoors, so that the efficient evaporative cooling tower is more suitable for being used in the system.
In some embodiments, the present disclosure further provides a process for treating a titanium sponge reduction tank 10 flue gas, using a titanium sponge reduction tank 10 flue gas treatment system as described in any one of the above, the process comprising:
collecting the flue gas generated from the titanium sponge reduction tank 10 through a flue gas treatment pipe 11;
filtering the flue gas through a filter 18, filtering and separating solid particles in the flue gas, and entering the filter 18 at a temperature less than 500 ℃;
cooling the flue gas by an evaporation cooling tower 19 in an atomization cooling mode, wherein the temperature of the cooled flue gas is less than 70 ℃, and the wastewater generated by cooling the flue gas by the evaporation cooling tower 19 is discharged to a factory for treatment;
the treated fumes are discharged by the vacuum pump 20.
Specifically, the high-temperature furnace gas generated from the titanium sponge reduction tank 10 is required to be discharged for 50 times/120 hours, and the discharge pressure ranges: 5-200 KPa, the connection pipe opening of the flue gas treatment pipeline 11 is connected with the exhaust opening of the titanium sponge reduction tank 10, so that the flue gas treatment pipeline 11 collects the flue gas generated from the titanium sponge reduction tank 10; the dust-free gas is cooled by the high-efficiency evaporative cooling tower 19 and then discharged by the vacuum pump 20 after being subjected to fine filtration by the high-efficiency filter 18, and the cooled waste water is discharged to a factory for centralized treatment. The exhaust emission process can be carried out according to the emission pressure of the tank body and different opening degrees of the valve 15 are selected (based on final debugging data), and the whole system is required to be subjected to nitrogen purging replacement qualification before starting up and after stopping.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A titanium sponge reduction tank fume treatment system, comprising:
the front end of the flue gas treatment pipeline is communicated with the exhaust port of the titanium sponge reduction tank;
the vacuum pump is arranged at the rear end of the flue gas treatment pipeline;
the device comprises a smoke treatment pipeline, a titanium sponge reduction tank, a vacuum pump, a filter, an evaporative cooling tower and an evaporation cooling tower, wherein the smoke treatment pipeline is positioned between the titanium sponge reduction tank and the vacuum pump, the filter and the evaporative cooling tower are sequentially arranged from the front end to the rear end, the filter is used for filtering and recycling particulate matters in smoke, and the evaporative cooling tower is used for absorbing and treating waste gas in the smoke and cooling the smoke.
2. The titanium sponge reduction tank flue gas treatment system as claimed in claim 1, wherein: an emergency discharge valve and an explosion-proof isolation valve are arranged between the titanium sponge reduction tank and the filter on the flue gas treatment pipeline.
3. The titanium sponge reduction tank flue gas treatment system as claimed in claim 2, wherein: the flue gas treatment pipeline between the emergency discharge valve and the explosion-proof isolation valve is provided with a nitrogen purging port, and the nitrogen purging port is connected with a nitrogen source.
4. A titanium sponge reduction tank flue gas treatment system as claimed in claim 3, wherein: and temperature monitoring sensors are arranged on the flue gas treatment pipeline and positioned between the explosion-proof isolation valve and the filter, between the filter and the evaporative cooling tower and between the evaporative cooling tower and the vacuum pump.
5. The titanium sponge reduction tank flue gas treatment system as claimed in claim 4, wherein: and pressure monitoring sensors are arranged on the flue gas treatment pipeline between the explosion-proof isolation valve and the filter and between the evaporative cooling tower and the vacuum pump.
6. The titanium sponge reduction tank flue gas treatment system as claimed in claim 5, wherein: the flue gas treatment pipeline is connected with a differential pressure monitor, one end of the differential pressure monitor is connected to the flue gas treatment pipeline between the explosion-proof isolation valve and the filter, and the other end of the differential pressure monitor is connected to the flue gas treatment pipeline between the filter and the evaporative cooling tower.
7. The titanium sponge reduction tank flue gas treatment system as claimed in claim 6, wherein: the device is characterized in that an oxyhydrogen analyzer is connected to the flue gas treatment pipeline, one end of the oxyhydrogen analyzer is connected to the flue gas treatment pipeline between the filter and the evaporation cooling tower, and the other end of the oxyhydrogen analyzer is connected to the flue gas treatment pipeline between the evaporation cooling tower and the vacuum pump.
8. The titanium sponge reduction tank flue gas treatment system as claimed in claim 7, wherein: the rear end of the explosion-proof isolation device on the flue gas treatment pipeline is provided with a valve, and the filter is a high-efficiency filter.
9. The titanium sponge reduction tank flue gas treatment system as claimed in claim 1, wherein: the pressure of the vacuum pump is between-30 Kpa and-40 Kpa, and the evaporative cooling tower is a high-efficiency evaporative cooling tower.
10. A process for treating the flue gas of a titanium sponge reduction tank, which is characterized in that the process adopts the flue gas treatment system of the titanium sponge reduction tank as claimed in any one of claims 1 to 9, and comprises the following steps:
collecting the flue gas generated from the titanium sponge reduction tank through a flue gas treatment pipeline;
filtering the flue gas through a filter, filtering and separating solid particles in the flue gas, and entering the filter at the temperature of less than 500 ℃;
cooling the flue gas by an evaporation cooling tower in an atomization cooling mode, wherein the temperature of the cooled flue gas is less than 70 ℃, and the wastewater generated by cooling the flue gas by the evaporation cooling tower is discharged to a factory for treatment;
and (5) exhausting the treated flue gas through a vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311318786.7A CN117225090A (en) | 2023-10-12 | 2023-10-12 | System and process for treating flue gas of titanium sponge reduction tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311318786.7A CN117225090A (en) | 2023-10-12 | 2023-10-12 | System and process for treating flue gas of titanium sponge reduction tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117225090A true CN117225090A (en) | 2023-12-15 |
Family
ID=89094740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311318786.7A Pending CN117225090A (en) | 2023-10-12 | 2023-10-12 | System and process for treating flue gas of titanium sponge reduction tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117225090A (en) |
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2023
- 2023-10-12 CN CN202311318786.7A patent/CN117225090A/en active Pending
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