CN212057341U - Second combustion chamber emergency discharge chimney tail gas clean system - Google Patents
Second combustion chamber emergency discharge chimney tail gas clean system Download PDFInfo
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- CN212057341U CN212057341U CN202020236783.4U CN202020236783U CN212057341U CN 212057341 U CN212057341 U CN 212057341U CN 202020236783 U CN202020236783 U CN 202020236783U CN 212057341 U CN212057341 U CN 212057341U
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- dust remover
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Abstract
The utility model relates to a secondary combustion chamber emergency emission chimney tail gas purification system, which comprises a secondary combustion chamber emission chimney, a Venturi dust collector, a dilute alkali solution tank, a circulating pump, a cyclone dewatering dust collector, a draught fan and an exhaust funnel, wherein the secondary combustion chamber emission chimney is communicated with the Venturi dust collector, the Venturi dust collector is communicated with the cyclone dewatering dust collector, the cyclone dewatering dust collector is communicated with the exhaust funnel, the draught fan is arranged between the cyclone dewatering dust collector and the exhaust funnel, and the dilute alkali solution tank is communicated with the throat position of the Venturi dust collector through the circulating pump. The gas discharged by the gas purifier is more environment-friendly, and the pollution to the surrounding environment is effectively avoided.
Description
Technical Field
The utility model relates to an industrial waste tail gas treatment technical field especially relates to a two combustion chambers promptly discharge chimney tail gas clean-up system.
Background
With the high-speed growth of economy in China, the growth of various dangerous wastes is accelerated continuously, the treatment of the dangerous wastes is an important problem facing China, and at present, domestic dangerous waste incineration device projects such as bamboo shoots in spring after rain are built in large batches and are put into operation continuously. According to the requirements of the national hazardous waste incineration standard, a rotary kiln is adopted as a main treatment means for a plurality of projects at present, after the hazardous waste is incinerated in the rotary kiln, the flue gas needs to be fully incinerated in an environment that the flue gas stays in a secondary chamber for 2s at 1100 ℃, and the incinerated flue gas meets the national final emission requirements on the flue gas through measures such as SNCR denitration, quenching and deacidification and the like. In the process, the secondary combustion chamber equipment is key equipment for completely incinerating wastes, the system runs under negative pressure under the normal working condition, and in order to ensure the running safety of the system, the top of the secondary combustion chamber is provided with an emergency discharge chimney, and the emergency discharge chimney is opened for pressure relief when the pressure of the system exceeds the normal running range.
At present, the domestic environmental protection pressure is increasingly greater, the secondary combustion chamber emergency discharge chimney is a safety measure, the secondary combustion chamber emergency discharge chimney can fall down after the take-off time is about 20 s-30 s each time, the current domestic project basically does not process the smoke discharged by the chimney,directly discharged to the atmosphere, but the amount of the flue gas is very large relative to the exhaust amount of a safety valve of a common storage tank, and the flue gas contains smoke dust and SO2Various pollutants such as HCL and the like cause great pollution to the surrounding environment, and the mode is not accepted by environmental protection experts and surrounding residents. In conclusion, how to collect and process the exhaust gas of the secondary combustion chamber emergency discharge chimney in the accident state and further carry out environmental protection treatment becomes a problem to be solved urgently in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a second combustion chamber promptly discharges chimney tail gas clean-up system.
The utility model discloses a realize through following technical scheme:
the utility model provides a two combustion chambers promptly discharge chimney tail gas clean system, its characterized in that, discharge chimney, venturi dust remover, weak alkali liquid jar, circulating pump, whirlwind dehydration dust remover, draught fan and aiutage including two combustion chambers, two combustion chambers discharge chimney and venturi dust remover and are linked together, venturi dust remover and whirlwind dehydration dust remover are linked together, whirlwind dehydration dust remover is linked together with the aiutage, is equipped with the draught fan between whirlwind dehydration dust remover and the aiutage, weak alkali liquid jar is linked together through circulating pump and venturi dust remover throat position.
According to the technical scheme, preferably, the bottom of the cyclone dewatering dust collector is communicated with a sedimentation tank, and a slurry discharge port is formed in the bottom of the sedimentation tank.
According to the technical scheme, preferably, the upper part of the sedimentation tank is communicated with a circulating pipeline, and the end part of the circulating pipeline is communicated with a dilute alkali liquor tank.
According to the technical scheme, preferably, the induced draft fan is a diesel oil-assisted induced draft fan, and the circulating pump is a diesel oil alkali liquor circulating pump.
The utility model has the advantages that:
the utility model is suitable for an industry hazardous waste burns the urgent emission chimney tail gas treatment of the second combustion chamber of system, because this tail gas discharges under the accident condition, this system application time is short, and the construction cost is low, and the operation is reliable and stable, all does not do under the big background of handling to this flue gas in industry, provides the environmental protection measure that a feasible flue gas was handled, makes the gaseous environmental protection more of its emission, effectively avoids causing the pollution to all ring edge borders.
Drawings
Fig. 1 is a schematic diagram of the system connection of the present invention.
In the figure: 1. a second combustion chamber discharge chimney; 2. a venturi scrubber; 3. a cyclone dehydration dust collector; 4. an induced draft fan; 5. an exhaust funnel; 6. a sedimentation tank; 7. a dilute alkali solution tank; 8. and a circulating pump.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the utility model comprises a secondary combustion chamber discharge chimney 1, a Venturi dust collector 2, a dilute alkali liquor tank 7, a circulating pump 8, a cyclone dehydration dust collector 3, a draught fan 4 and an exhaust funnel 5, the secondary combustion chamber discharge chimney 1 is communicated with a Venturi dust collector 2, the Venturi dust collector 2 is communicated with a cyclone dehydration dust collector 3, the cyclone dewatering dust collector 3 is communicated with the exhaust funnel 5, an induced draft fan 4 is arranged between the cyclone dewatering dust collector 3 and the exhaust funnel 5, the dilute alkali liquid tank 7 is communicated with the throat position of the Venturi dust collector 2 through the circulating pump 8, the Venturi dust collector 2 comprises a contraction pipe, a throat pipe and a gradual expansion pipe, high-temperature-resistant alloy steel is adopted at the inlet position of the Venturi dust collector 2, wear-resistant and corrosion-resistant materials are adopted at the throat position of the Venturi dust collector 2, the throat pipe is arranged at the throat position of the Venturi dust collector 2, and the dilute alkali liquid tank 7 is communicated with the throat pipe at the throat position of the Venturi dust collector 2 through the circulating pump 8. The secondary combustion chamber discharges the chimney 1 and opens the interlock start draught fan 4 at the same time, 1100 dug smoke enters the Venturi dust collector 2 under the power that the draught fan 4 provided, spray the dilute alkali liquor in the Venturi dust collector 2 throat position, the flue gas and dilute alkali liquor fully exchange heat, the flue gas temperature drops to saturation temperature, desorption SO2 and acidic gases such as HCL simultaneously, the flue gas enters the cyclone dehydration dust remover 3 after washing, the liquid drop of desorption rich dirt, introduce the exhaust stack 5 through the draught fan 4 and discharge to the atmosphere. The utility model is suitable for an industry hazardous waste burns the urgent emission chimney tail gas treatment of the second combustion chamber of system, because this tail gas discharges under the accident condition, this system application time is short, and the construction cost is low, and the operation is reliable and stable, all does not do under the big background of handling to this flue gas in industry, provides the environmental protection measure that a feasible flue gas was handled, makes the gaseous environmental protection more of its emission, effectively avoids causing the pollution to all ring edge borders.
According to the above embodiment, preferably, the bottom of the cyclone dewatering dust collector is communicated with a sedimentation tank 6, and the bottom of the sedimentation tank 6 is provided with a slurry discharge port. The flue gas under the saturated state enters a cyclone dehydration dust collector, water drops rich in dust in the flue gas are collected to a sedimentation tank 6 below the cyclone dehydration dust collector by utilizing the centrifugal action, and a pneumatic valve is arranged outside a slurry discharge port and used for discharging the precipitated slurry outwards at regular intervals.
According to the above embodiment, preferably, the upper part of the sedimentation tank 6 is communicated with a circulation pipeline, the end part of the circulation pipeline is communicated with the dilute alkali liquor tank 7, and the arrangement makes the supernatant liquid of the sedimentation tank 6 flow back to the dilute alkali liquor tank 7 for further spraying, so that the consumption of water quantity can be reduced.
According to the above embodiment, preferably, the induced draft fan 4 is a diesel-assisted induced draft fan, and the circulating pump 8 is a diesel lye circulating pump. The system has the advantages that the diesel auxiliary induced draft fan and the diesel alkali liquor circulating pump are selected, the external reliable power supply is not depended on, the stable operation of the system under the emergency discharge working condition possibly caused by power failure is effectively guaranteed, and the system can be widely applied to the similar industries.
The utility model is suitable for an industry hazardous waste burns the urgent emission chimney tail gas treatment of the second combustion chamber of system, because this tail gas discharges under the accident condition, this system application time is short, and the construction cost is low, and the operation is reliable and stable, all does not do under the big background of handling to this flue gas in industry, provides the environmental protection measure that a feasible flue gas was handled, makes the gaseous environmental protection more of its emission, effectively avoids causing the pollution to all ring edge borders.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a two combustion chambers promptly discharge chimney tail gas clean system, its characterized in that, discharge chimney, venturi dust remover, weak alkali liquid jar, circulating pump, whirlwind dehydration dust remover, draught fan and aiutage including two combustion chambers, two combustion chambers discharge chimney and venturi dust remover and are linked together, venturi dust remover and whirlwind dehydration dust remover are linked together, whirlwind dehydration dust remover is linked together with the aiutage, is equipped with the draught fan between whirlwind dehydration dust remover and the aiutage, weak alkali liquid jar is linked together through circulating pump and venturi dust remover throat position.
2. The secondary combustion chamber emergency exhaust chimney tail gas purification system according to claim 1, characterized in that a sedimentation tank is communicated with the bottom of the cyclone dewatering dust collector, and a slurry discharge port is arranged at the bottom of the sedimentation tank.
3. The secondary combustion chamber emergency exhaust chimney tail gas purification system according to claim 2, characterized in that a circulation pipeline is communicated with the upper part of the sedimentation tank, and the end part of the circulation pipeline is communicated with a dilute alkali liquor tank.
4. The secondary combustion chamber emergency emission chimney tail gas purification system according to any one of claims 1 to 3, characterized in that the induced draft fan is a diesel-assisted induced draft fan, and the circulating pump is a diesel lye circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020236783.4U CN212057341U (en) | 2020-03-02 | 2020-03-02 | Second combustion chamber emergency discharge chimney tail gas clean system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020236783.4U CN212057341U (en) | 2020-03-02 | 2020-03-02 | Second combustion chamber emergency discharge chimney tail gas clean system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212057341U true CN212057341U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020236783.4U Active CN212057341U (en) | 2020-03-02 | 2020-03-02 | Second combustion chamber emergency discharge chimney tail gas clean system |
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| Country | Link |
|---|---|
| CN (1) | CN212057341U (en) |
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2020
- 2020-03-02 CN CN202020236783.4U patent/CN212057341U/en active Active
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