CN210057743U - Smoke discharge treatment device for coal-fired furnace - Google Patents
Smoke discharge treatment device for coal-fired furnace Download PDFInfo
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- CN210057743U CN210057743U CN201920757096.4U CN201920757096U CN210057743U CN 210057743 U CN210057743 U CN 210057743U CN 201920757096 U CN201920757096 U CN 201920757096U CN 210057743 U CN210057743 U CN 210057743U
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- chamber
- pipeline
- flue gas
- treatment
- coal
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- 239000000779 smoke Substances 0.000 title abstract description 36
- 208000028659 discharge Diseases 0.000 title description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000003546 flue gas Substances 0.000 claims abstract description 50
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 34
- 230000023556 desulfurization Effects 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000002910 solid waste Substances 0.000 claims description 15
- 238000004065 wastewater treatment Methods 0.000 claims description 12
- 239000010865 sewage Substances 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000001223 reverse osmosis Methods 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000002341 toxic gas Substances 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000003009 desulfurizing effect Effects 0.000 description 3
- MXWHMTNPTTVWDM-NXOFHUPFSA-N mitoguazone Chemical compound NC(N)=N\N=C(/C)\C=N\N=C(N)N MXWHMTNPTTVWDM-NXOFHUPFSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 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
- 239000003245 coal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a smoke emission treatment device for a coal-fired furnace, which comprises a treatment chamber, a smoke communicating pipeline and a treatment liquid communicating pipeline, wherein the treatment chamber is built by reinforced concrete, and the smoke communicating pipeline and the treatment liquid communicating pipeline are both communicated with the treatment chamber; the treatment chamber is including the clean room, desulfurization chamber, denitrogenation room and the heat exchange chamber that communicate in proper order, and flue gas intercommunication pipeline and clean room intercommunication, desulfurization chamber and denitrogenation room are one or continuous a plurality ofly, all are equipped with the baffle between two adjacent rooms, and treatment fluid intercommunication pipeline includes dust removal liquid pipeline, doctor solution pipeline and denitrogenation liquid pipeline at least, and the heat exchange chamber side is equipped with the flue gas pipeline with the chimney intercommunication. The utility model discloses it makes up into an organic whole to remove dust with desulfurization denitrogenation, can reduce the process and the area that desulfurization denitrogenation removed dust, can reduce the corruption of equipment with reinforced concrete, effectively reduces the emission of toxic gas and waste water simultaneously, and environmental pollution is few, cost greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of flue gas treatment, concretely relates to coal-fired furnace flue gas emission processing apparatus.
Background
With the continuous deepening of the country on the energy saving and emission reduction work, the environmental protection standard is continuously improved, and the emission supervision is more and more strict. The reserved heat supply coal-fired boiler discharges sulfur dioxide, nitrogen oxide and particulate matters to meet the ultra-low emission requirement (namely the emission concentrations of the particulate matters, the sulfur dioxide and the nitrogen oxide are respectively not higher than 10 mg/cubic meter, 35 mg/cubic meter and 50 mg/cubic meter under the condition that the reference oxygen content is 6%). In addition, the local environmental protection department also puts a clear requirement on eliminating the pollution of colored smoke plume (white, blue, yellow and gray) of the chimney 12 of the large-scale coal-fired power plant.
The smoke temperature control and other effective measures are required to be adopted to eliminate the phenomena of gypsum rain, colored white smoke and the like in the power generation coal-fired boiler (except for the installed wet electricity), namely, the corresponding technology is adopted to reduce the emission humidity and the moisture content of the smoke, the supersaturated water vapor moisture in the smoke is collected, and the emission of condensable particles such as soluble salt, sulfuric acid mist, organic matters and the like in the smoke is reduced. After the corresponding technology is adopted, the smoke temperature of the coal-fired boiler in summer (4 months to 10 months) is not higher than 47 ℃, and the moisture content of the smoke is not higher than 9.5%; the smoke temperature is not higher than 45 ℃ in winter (11 months to 3 months in the next year), and the moisture content is not higher than 8.5%.
The existing MGGH and GGH technologies recover the waste heat of the flue gas before the flue gas enters the desulfurizing tower, and then use the heat to heat the wet flue gas after leaving the desulfurizing tower, so as to dry the flue gas, thereby eliminating white smoke plume. However, when the technology (similar) MGGH and GGH and the technology for directly heating the flue gas to eliminate the white smoke are adopted, the temperature of the flue gas at the outlet of the desulfurizing tower is higher, and the total moisture content of the flue gas is higher, so that more heat is needed for heating, and the technology (similar) MGGH and GGH consumes the benefit of flue gas waste heat utilization.
In addition, the existing treatment device adopts steel, so that the equipment is seriously corroded, the later-stage transformation difficulty is high, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coal-fired furnace fume emission processing apparatus, overcome the above-mentioned technical problem that exists among the prior art.
The utility model provides a technical scheme as follows:
a coal-fired furnace flue gas emission treatment device comprises a treatment chamber, a flue gas communicating pipeline and a treatment liquid communicating pipeline, wherein the treatment chamber is built by reinforced concrete, and the flue gas communicating pipeline and the treatment liquid communicating pipeline are both communicated with the treatment chamber;
the utility model discloses a flue gas desulfurization and denitrification device, including dust removal chamber, desulfurization chamber, denitrogenation chamber and the heat exchange chamber that communicates in proper order, flue gas intercommunication pipeline and dust removal chamber intercommunication, desulfurization chamber and denitrogenation chamber are one or continuous a plurality ofly, all are equipped with the baffle between two adjacent rooms, processing liquid intercommunication pipeline includes dust removal liquid pipeline, doctor solution pipeline and denitrogenation liquid pipeline at least, dust removal liquid pipeline, doctor solution pipeline, denitrogenation liquid pipeline communicate with the spray thrower at dust removal chamber, desulfurization chamber, denitrogenation roof portion respectively, heat exchange chamber side limit is equipped with the flue gas pipeline with the chimney intercommunication.
Dust removal chamber, desulfurization chamber, denitrogenation room and heat exchange chamber set gradually along the horizontal direction, the vertical setting of baffle and highly be less than the height of process chamber, the baffle includes the last baffle of being connected with process chamber inner wall top and the lower baffle of being connected with process chamber inner wall bottom, goes up the baffle and sets up with lower baffle interval.
Supreme setting gradually is down followed to clean room, desulfurization chamber, denitrogenation room and heat exchange chamber, the baffle level sets up and the width is less than the width of process chamber, two adjacent baffle intervals and the both sides internal connection of process chamber.
The solid waste water treatment device is characterized by further comprising a solid waste water treatment device and a sewage pipeline, wherein the sewage pipeline is arranged at the bottom of the treatment chamber, and the treatment chamber is communicated with the solid waste water treatment device through the sewage pipeline.
The heat exchange chamber is provided with a coil pipe, the inlet end of the coil pipe is communicated with air, and the outlet end of the coil pipe is communicated with a coal-fired furnace.
The top of the heat exchange chamber is communicated with a cooling water pipeline through a sprayer.
The solid waste water treatment device comprises a solid waste sedimentation treatment tank, a reverse osmosis treatment unit and a clear water storage tank which are sequentially communicated, and the clear water storage tank is communicated with the dedusting liquid pipeline.
The heat exchange chamber is also provided with a demister.
The utility model has the advantages that:
the utility model provides a this kind of coal-fired furnace flue gas discharge processing apparatus removes dust with desulfurization denitrogenation and makes up integratively, can reduce the process and the area that desulfurization denitrogenation removed dust, can reduce the corruption of equipment with reinforced concrete, effectively reduces the emission of toxic gas and waste water simultaneously, and environmental pollution is few, cost greatly reduced.
The following will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of an embodiment of the flue gas emission treatment device of a coal-fired furnace of the present invention;
FIG. 2 is a flow chart of a coal-fired furnace flue gas treatment process.
In the figure: 1. a dust chamber; 2. a desulfurization chamber; 3. a denitrification chamber; 4. a heat exchange chamber; 5. an upper partition plate; 6. a lower partition plate; 7. a flue gas communicating pipe; 8. a treatment liquid communicating pipe; 9. a solid waste sedimentation treatment tank; 10. a reverse osmosis treatment unit; 11. a clear water storage tank; 12. a chimney; 13. a coal-fired furnace.
Detailed Description
Example 1:
the embodiment provides a coal-fired furnace flue gas emission treatment device, which comprises a treatment chamber, a flue gas communicating pipeline 7 and a treatment liquid communicating pipeline 8, wherein the treatment chamber is built by reinforced concrete, and the flue gas communicating pipeline 7 and the treatment liquid communicating pipeline 8 are both communicated with the treatment chamber;
the treatment chamber is including dust removal chamber 1, desulfurization chamber 2, denitrogenation chamber 3 and the heat exchange chamber 4 that communicates in proper order, flue gas intercommunication pipeline 7 and dust removal chamber 1 intercommunication, desulfurization chamber 2 and denitrogenation chamber 3 are one or continuous a plurality of, all are equipped with the baffle between two adjacent rooms, treatment liquid intercommunication pipeline 8 includes dust removal liquid pipeline, doctor solution pipeline and denitrogenation liquid pipeline at least, dust removal liquid pipeline, doctor solution pipeline, denitrogenation liquid pipeline communicate with the spray thrower at dust removal chamber 1, desulfurization chamber 2, denitrogenation chamber 3 top respectively, 4 sides of heat exchange chamber are equipped with the flue gas pipeline with chimney 12 intercommunication.
The utility model provides a coal-fired furnace flue gas emission processing apparatus, it makes up into an organic whole to remove dust with desulfurization denitrogenation, can reduce the process and the area that desulfurization denitrogenation removed dust, can reduce the corruption of equipment with reinforced concrete, when making flue gas processing back up to standard completely, greatly reduced cost.
Example 2:
on the basis of embodiment 1, this embodiment provides a coal-fired furnace smoke emission processing apparatus, clean room 1, desulfurization room 2, denitrogenation room 3 and heat exchange chamber 4 set gradually along the horizontal direction, the vertical setting of baffle and the height that highly is less than the process chamber, the baffle includes last baffle 5 of being connected with process chamber inner wall top and lower baffle 6 of being connected with process chamber inner wall bottom, goes up baffle 5 and 6 interval settings of baffle down.
The smoke emission treatment device of the coal-fired furnace is built by using reinforced concrete and is divided into a plurality of chambers, smoke passes through the chambers from top to bottom, a sprayer is arranged at the top of each chamber and sprays desulfurization or denitrification liquid to perform desulfurization and denitrification treatment on the smoke, and the temperature of the smoke is reduced by heat exchange in the heat exchange chamber 4 to eliminate white smoke plume.
Example 3:
on the basis of embodiment 1, this embodiment provides a coal-fired furnace smoke emission processing apparatus, supreme setting gradually is followed to clean room 1, desulfurization chamber 2, denitrogenation room 3 and heat exchange chamber 4, the baffle level sets up and the width is less than the width of process chamber, two adjacent baffle intervals and the both sides internal connection of process chamber.
The coal-fired furnace flue gas emission treatment device integrates desulfurization, denitrification and dust removal, and can reduce the procedures and the occupied area of desulfurization, denitrification and dust removal.
Example 4:
on the basis of embodiment 2, this embodiment provides a coal fired furnace flue gas discharge treatment device as shown in fig. 1, and further includes a solid wastewater treatment device and a sewage pipeline, wherein the sewage pipeline is arranged at the bottom of the treatment chamber, and the treatment chamber is communicated with the solid wastewater treatment device through the sewage pipeline.
In this embodiment, the solid waste water treatment device comprises a solid waste sedimentation treatment tank 9, a reverse osmosis treatment unit 10 and a clean water storage tank 11 which are sequentially communicated, wherein the clean water storage tank 11 is communicated with a dedusting liquid pipeline.
The solid sewage is treated to realize water recycling, the discharge amount of toxic gas and waste water is effectively reduced, the environmental pollution is less, and the cost is greatly reduced.
Example 5:
on the basis of embodiment 1, this embodiment provides a coal-fired furnace flue gas emission processing apparatus, the heat exchange chamber 4 is provided with a coil pipe, the inlet end of the coil pipe communicates with air, and the outlet end of the coil pipe communicates with a coal-fired furnace 13.
The smoke is outside the coil pipe, the air is in the pipe, the smoke temperature is reduced through heat exchange between the smoke and the air, white smoke, namely white smoke plume, is eliminated when the smoke is discharged, and the air with the increased temperature is introduced to the coal-fired furnace 13 and can be used as preheated fresh air.
Example 6:
on the basis of embodiment 1, the embodiment provides a coal-fired furnace flue gas emission treatment device, and the top of the heat exchange chamber 4 is communicated with a cooling water pipeline through a sprayer.
The heat exchange chamber 4 is also provided with a demister.
The smoke temperature is reduced through cooling water spraying, the temperature difference between the smoke and the environment temperature is reduced, the production speed of white smoke plume when the smoke is discharged is effectively reduced, the partial pressure of water vapor in the smoke is continuously reduced along with the continuous diffusion of the smoke in the atmosphere, part of separated fine water drops can be gasified again, when the saturation temperature corresponding to the partial pressure of the water vapor is reduced to be lower than the temperature of foggy water drops (a re-evaporation point), all the fine water drops can be gasified, and the white smoke plume disappears.
Example 7:
in this embodiment, the coal-fired furnace flue gas emission treatment device of embodiment 1 is used, flue gas discharged from the coal-fired furnace 13 enters the treatment chamber, is subjected to dust removal in the dust removal chamber 1, desulfurization in the desulfurization chamber 2 and denitrification in the denitrification chamber 3, is subjected to heat exchange to reduce the temperature of the flue gas, and is finally discharged through the chimney 12.
Example 8:
based on example 7, this example provides a coal-fired furnace flue gas treatment process as shown in fig. 2, in which flue gas discharged from the coal-fired furnace 13 is pre-denitrified in a combustion furnace by a reduction method and low-nitrogen combustion, and clean water generated after sewage and solid waste discharged from a treatment chamber are treated by a solid waste water treatment device is used for dust removal.
Wherein the dedusting liquid is clear water, the desulfurization liquid is double alkali, and the denitrification liquid is sodium sulfite. The spraying liquid is recycled, and the cost is reduced.
The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention. Components and structures not described in detail in the embodiments are those well-known in the art and commonly used structures or commonly used means, which are not all specifically described herein.
Claims (8)
1. A coal-fired furnace fume emission processing apparatus which characterized in that: the device comprises a treatment chamber, a flue gas communicating pipeline (7) and a treatment liquid communicating pipeline (8), wherein the treatment chamber is built by reinforced concrete, and the flue gas communicating pipeline (7) and the treatment liquid communicating pipeline (8) are both communicated with the treatment chamber;
the utility model discloses a desulfurization and denitrification combined type flue gas desulfurization and denitrification device, including dust removal chamber (1), desulfurization chamber (2), denitrogenation chamber (3) and heat exchange chamber (4) that communicate in proper order, flue gas intercommunication pipeline (7) and dust removal chamber (1) intercommunication, desulfurization chamber (2) and denitrogenation chamber (3) are one or continuous a plurality ofly, all are equipped with the baffle between two adjacent rooms, processing liquid intercommunication pipeline (8) include dust removal liquid pipeline, doctor solution pipeline and denitrogenation liquid pipeline at least, dust removal liquid pipeline, doctor solution pipeline, denitrogenation liquid pipeline respectively with the spray thrower intercommunication at dust removal chamber (1), desulfurization chamber (2), denitrogenation chamber (3) top, heat exchange chamber (4) side is equipped with the flue gas pipeline with chimney (12) intercommunication.
2. The coal-fired furnace flue gas emission treatment device of claim 1, characterized in that: dust removal room (1), desulfurization room (2), denitrogenation room (3) and heat exchange chamber (4) set gradually along the horizontal direction, the vertical setting of baffle and highly be less than the height of process chamber, the baffle includes last baffle (5) be connected with process chamber inner wall top and lower baffle (6) be connected with process chamber inner wall bottom, goes up baffle (5) and lower baffle (6) interval setting.
3. The coal-fired furnace flue gas emission treatment device of claim 1, characterized in that: supreme setting gradually is followed down in clean room (1), desulfurization chamber (2), denitrogenation room (3) and heat exchange chamber (4), the baffle level sets up and the width is less than the width of process chamber, two adjacent baffle intervals and the both sides internal connection of process chamber.
4. The coal-fired furnace flue gas emission treatment device of claim 1, characterized in that: the solid waste water treatment device is characterized by further comprising a solid waste water treatment device and a sewage pipeline, wherein the sewage pipeline is arranged at the bottom of the treatment chamber, and the treatment chamber is communicated with the solid waste water treatment device through the sewage pipeline.
5. A coal-fired furnace flue gas emission treatment device as set forth in claim 1, characterized in that: the heat exchange chamber (4) is provided with a coil pipe, the inlet end of the coil pipe is communicated with air, and the outlet end of the coil pipe is communicated with a coal-fired furnace (13).
6. The coal-fired furnace flue gas emission treatment device of claim 1, characterized in that: the top of the heat exchange chamber (4) is communicated with a cooling water pipeline through a sprayer.
7. The coal-fired furnace flue gas emission treatment device of claim 4, characterized in that: the solid waste water treatment device comprises a solid waste sedimentation treatment tank (9), a reverse osmosis treatment unit (10) and a clear water storage tank (11) which are sequentially communicated, and the clear water storage tank (11) is communicated with a dedusting liquid pipeline.
8. The coal-fired furnace flue gas emission treatment device of claim 5, characterized in that: the heat exchange chamber (4) is also provided with a demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757096.4U CN210057743U (en) | 2019-05-24 | 2019-05-24 | Smoke discharge treatment device for coal-fired furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757096.4U CN210057743U (en) | 2019-05-24 | 2019-05-24 | Smoke discharge treatment device for coal-fired furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210057743U true CN210057743U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920757096.4U Expired - Fee Related CN210057743U (en) | 2019-05-24 | 2019-05-24 | Smoke discharge treatment device for coal-fired furnace |
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| Country | Link |
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| CN (1) | CN210057743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999589A (en) * | 2019-05-24 | 2019-07-12 | 鞍山美城城市环境服务有限公司 | A kind of coal furnace flue gas emission processing unit and flue gas treating process |
-
2019
- 2019-05-24 CN CN201920757096.4U patent/CN210057743U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999589A (en) * | 2019-05-24 | 2019-07-12 | 鞍山美城城市环境服务有限公司 | A kind of coal furnace flue gas emission processing unit and flue gas treating process |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |