CN210645627U - Comprehensive flue gas treatment system of coal-fired boiler - Google Patents
Comprehensive flue gas treatment system of coal-fired boiler Download PDFInfo
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- CN210645627U CN210645627U CN201921294190.7U CN201921294190U CN210645627U CN 210645627 U CN210645627 U CN 210645627U CN 201921294190 U CN201921294190 U CN 201921294190U CN 210645627 U CN210645627 U CN 210645627U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model belongs to the technical field of coal fired boiler department system technique and specifically relates to a coal fired boiler's flue gas integrated processing system. The comprehensive flue gas treatment system of the coal-fired boiler comprises a shell, wherein a first partition plate and a second partition plate are sequentially arranged in the shell from bottom to top, the first partition plate and the second partition plate divide the interior of the shell into a waste heat recovery chamber, a desulfurization and denitrification chamber and a dedusting and demisting chamber from bottom to top, and a vertical spiral flue gas pipeline is fixed in the waste heat recovery chamber; a desulfurizer or a denitrifier is arranged in the two adjacent mesh supporting plates in the desulfurization and denitrification cavity; the top of the dedusting and demisting chamber is provided with a clean smoke outlet. The utility model discloses a coal fired boiler's flue gas integrated processing system, the integrated design realizes coal fired boiler flue gas waste heat recovery, SOx/NOx control, dust removal defogging in same device of same system, and the system continuity is strong, has greatly shortened coal fired boiler flue gas treatment's time, improves flue gas integrated processing work efficiency.
Description
Technical Field
The utility model belongs to the technical field of coal fired boiler department system technique and specifically relates to a coal fired boiler's flue gas integrated processing system.
Background
The coal-fired boiler has higher flue gas temperature and contains a certain amount of harmful components such as solid particles, sulfides, ammonia nitrogen and the like, and if the harmful components are directly discharged into the atmosphere, the harmful components can damage the surrounding environment, so that the basic requirements of China on the reasonable environmental protection of enterprise production are not met. The existing coal-fired boiler flue gas waste heat recovery, desulfurization and denitrification and dust removal and demisting are generally carried out in different devices of the same system, the continuity is not strong, and the treatment time of the flue gas is prolonged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coal fired boiler's flue gas integrated processing system overcomes the not enough of aforementioned prior art, realizes device integrated design, accomplishes waste heat recovery, flue gas desulfurization denitration, dust removal defogging in the system in same equipment, greatly shortens flue gas treatment time, improves flue gas treatment efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
a comprehensive flue gas treatment system of a coal-fired boiler comprises a shell, wherein a first partition plate and a second partition plate are sequentially arranged inside the shell from bottom to top, the first partition plate and the second partition plate divide the interior of the shell from bottom to top into a waste heat recovery cavity, a desulfurization and denitrification cavity and a dedusting and demisting cavity, a vertical spiral flue gas pipeline is fixed in the waste heat recovery cavity, a raw flue gas inlet pipe of the spiral flue gas pipeline extends out of the shell, a raw flue gas outlet pipe of the spiral flue gas pipeline extends out of the shell and then is communicated with the bottom of the desulfurization and denitrification cavity, a water inlet is formed in one side of the lower end of the waste heat recovery cavity, a water outlet is formed in one side of the upper end of the waste heat recovery cavity, cold water enters the full-filled waste heat recovery cavity from the water inlet, raw flue gas enters from the raw flue gas inlet pipe and spirally rises in the spiral, cold water is heated and then discharged from a water outlet, and the original flue gas after heat transfer enters the desulfurization and denitrification chamber from the original flue gas outlet pipe; a plurality of mesh supporting plates are obliquely arranged in the desulfurization and denitrification cavity, a desulfurizer or a denitrifier is arranged in two adjacent mesh supporting plates, a connecting rod is arranged between the two adjacent mesh supporting plates, a vibration motor is arranged at the lower end of the second partition plate and connected with a driven rod, the other end of the driven rod is connected with the uppermost mesh supporting plate, raw flue gas enters the desulfurization and denitrification cavity, is desulfurized by the desulfurizer upwards and is discharged to the dedusting and demisting chamber after being denitrated by the denitrifier, and the vibration motor vibrates to drive the driven rod to vibrate and further drive the mesh supporting plates connected by the connecting rod to vibrate, so that the desulfurizer and the denitrifier vibrate along with the flue gas to prevent hardening; the flue gas outlet duct of SOx/NOx control cavity stretches out outer wall of the housing and communicates with dust removal defogging cavity, and upper portion is provided with dust removal mechanism in the dust removal defogging cavity, and dust removal mechanism upper portion is provided with defogging mechanism, and dust removal defogging cavity top is provided with clean flue gas outlet, and the flue gas removes dust earlier in the dust removal defogging cavity after the defogging, finally discharges from clean flue gas outlet.
Further, dust removal mechanism is including even parallelly connected the water pipe that sets up upper portion in the dust removal defogging cavity, be used for communicateing the water inlet manifold of each water pipe, evenly set up in the shower nozzle of each water pipe lower extreme, and the shower water gets into and distributes in individual water pipe from water inlet manifold, and the water in the water pipe forms the water curtain from the shower nozzle blowout, and the flue gas that gets into in the dust removal defogging cavity upwards passes the water curtain and realizes removing dust.
Further, defogging mechanism is including being fixed in the mesh fixed plate on the shells inner wall, set up the sponge layer that absorbs water on the mesh fixed plate, place in the extrusion otter board and the tailpiece of the piston rod and the extrusion otter board of the sponge layer upper surface that absorbs water fixed, the other end and the fixed hydraulic stem in casing top, the flue gas after the dust removal passes the sponge layer that absorbs water behind the mesh fixed plate and absorbs water the defogging, then continue upwards to pass and discharge from clean flue gas outlet behind the extrusion otter board, the sponge that absorbs water uses and starts the hydraulic stem after a period and drive the extrusion otter board and extrude the sponge layer that absorbs water, the intraformational moisture of sponge that absorbs water is extruded and is dripped to the dust removal.
Furthermore, the first partition plate is a downward-inclined plate, the second partition plate is an upward-convex plate, and the downward-inclined design of the first partition plate is beneficial to arranging a block-shaped manhole at one side of the shell so as to remove dust falling from the desulfurizer and the denitrifier in the vibration process of the vibration motor; the upward convex structure of the second partition plate is favorable for discharging water in the dedusting and demisting chamber.
Furthermore, the mesh supporting plate inclines upwards towards the direction of the communicating end of the original flue gas outlet pipe of the spiral flue gas pipeline and the desulfurization and denitrification cavity, so that the original flue gas can be fully contacted with a desulfurizer/denitrification agent immediately after entering the desulfurization and denitrification cavity, and the first partition plate inclines downwards towards the direction of the communicating end of the original flue gas outlet pipe of the spiral flue gas pipeline and the desulfurization and denitrification cavity.
Further, the vibration motor is arranged at the highest position of the lower surface of the second partition plate.
Furthermore, the upper end of the second clapboard is provided with a water outlet of the dedusting and demisting chamber.
Further, the flue gas outlet duct of SOx/NOx control cavity is higher than the highest point of second baffle with the intercommunication end of dust removal defogging cavity, prevents that the water for the dust removal from pouring into SOx/NOx control cavity from the flue gas outlet duct of SOx/NOx control cavity and the intercommunication end of dust removal defogging cavity.
Furthermore, a water outlet is formed in the bottom of the waste heat recovery cavity, a check valve is arranged on the water outlet, and when the system is stopped to be used, water in the waste heat recovery cavity is drained.
The utility model has the advantages that: compared with the prior art, the utility model discloses a coal fired boiler's flue gas integrated processing system has following advantage: the integrated design realizes coal fired boiler flue gas waste heat recovery, SOx/NOx control, dust removal defogging in same device of same system, and the system continuity is strong, has greatly shortened coal fired boiler flue gas treatment's time, improves flue gas comprehensive treatment work efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the region A of the present invention;
wherein, 1 casing, 2 first baffle, 3 second baffles, 4 waste heat recovery cavities, 5 SOx/NOx control cavities, 6 dust removal defogging cavities, 7 spiral flue gas pipeline, 8 former flue gas admission pipes, 9 former flue gas outlet ducts, 10 water inlets, 11 delivery ports, 12 mesh backup pads, 13 desulfurizer, 14 denitrifier, 15 connecting rods, 16 vibrating motor, 17 driven bars, 18 flue gas outlet ducts, 19 net flue gas export, 20 water pipes, 21 inlet manifold, 22 shower nozzle, 23 mesh fixed plates, 24 sponge layers of absorbing water, 25 extrusion otter boards, 26 hydraulic stem.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the embodiment shown in fig. 1 and 2, a comprehensive flue gas treatment system of a coal-fired boiler comprises a shell 1, wherein a first partition plate 2 and a second partition plate 3 are sequentially arranged inside the shell 1 from bottom to top, the first partition plate 2 and the second partition plate 3 divide the inside of the shell 1 from bottom to top into a waste heat recovery chamber 4, a desulfurization and denitrification chamber 5 and a dedusting and demisting chamber 6, a vertical spiral flue gas pipeline 7 is fixed inside the waste heat recovery chamber 4, a raw flue gas inlet pipe 8 of the spiral flue gas pipeline 7 extends out of the shell 1, a raw flue gas outlet pipe 9 of the spiral flue gas pipeline 7 extends out of the shell 1 and then is communicated with the bottom of the desulfurization and denitrification chamber 5, a water inlet 10 is arranged on one side of the lower end of the waste heat recovery chamber 4, and a water outlet 11 is arranged on; a plurality of mesh supporting plates 12 are obliquely arranged in the desulfurization and denitrification chamber 5, a desulfurizer 13 or a denitrifier 14 is arranged in each two adjacent mesh supporting plates 12, a connecting rod 15 is arranged between each two adjacent mesh supporting plates 12, a vibration motor 16 is arranged at the lower end of the second partition plate 3, the vibration motor 16 is connected with a driven rod 17, and the other end of the driven rod 17 is connected with the mesh supporting plate 12 at the uppermost end; flue gas outlet pipe 18 of SOx/NOx control cavity 5 stretches out the casing 1 outer wall and communicates with dust removal defogging cavity 6, and upper portion is provided with dust removal mechanism in the dust removal defogging cavity 6, and dust removal mechanism upper portion is provided with defogging mechanism, and dust removal defogging cavity top is provided with clean exhanst gas outlet 19.
In this embodiment, the dust removing mechanism includes water pipes 20 uniformly connected in parallel to the upper and middle portions of the dust removing and mist removing chamber 6, a water inlet header 21 for communicating the water pipes 20, and spray heads 22 uniformly arranged at the lower ends of the water pipes 20.
In this embodiment, the defogging mechanism includes a mesh fixing plate 23 fixed on the inner wall of the housing 1, a water absorption sponge layer 24 arranged on the mesh fixing plate 23, an extrusion mesh plate 25 placed on the upper surface of the water absorption sponge layer 24, and a hydraulic rod 26 fixed at the other end of the piston rod end and the extrusion mesh plate 25 and the top of the housing.
In this embodiment, the first partition board 2 is a downward inclined board, and the second partition board 3 is an upward convex board. The mesh supporting plate 12 inclines upwards towards the direction of the communicating end of the raw flue gas outlet pipe 9 of the spiral flue gas pipeline 7 and the desulfurization and denitrification chamber 5, and the first partition plate 2 inclines downwards towards the direction of the communicating end of the raw flue gas outlet pipe 9 of the spiral flue gas pipeline 7 and the desulfurization and denitrification chamber 5. The vibration motor 16 is disposed at the highest position of the lower surface of the second partition plate 3. And the upper end of the second clapboard 3 is provided with a water outlet of the dedusting and demisting chamber 6. And the communicating end of the flue gas outlet pipe of the desulfurization and denitrification chamber 5 and the dedusting and demisting chamber 6 is higher than the highest part of the second clapboard 3.
In this embodiment, a water outlet is disposed at the bottom of the waste heat recovery chamber 4, and a check valve is disposed on the water outlet.
The working principle is as follows: the utility model discloses a coal fired boiler's flue gas integrated processing system, during the use, cold water gets into from water inlet 10 and fills up waste heat recovery cavity 4, former flue gas gets into and rises spirally in spiral flue gas pipeline 7 from former flue gas inlet 8, the heat transfer of flue gas is the cold water in the waste heat recovery cavity 4, cold water is discharged from delivery port 11 after being heated, former flue gas after the heat transfer gets into desulfurization denitration cavity 5 from former flue gas outlet duct 9, shower water gets into and distributes in individual water pipe 20 from water header 21, the water in the water pipe 20 is spout from shower nozzle 22 and forms the water curtain, the flue gas that gets into in dust removal cavity 6 upwards passes the water curtain and realizes removing dust, flue gas after the dust removal passes behind mesh fixed plate 23 is absorbed the water sponge layer 24 and is inhaled the defogging by water sponge layer 24, then continue upwards pass behind extrusion otter board 25 and discharge from clean flue gas outlet 19, water sponge layer 24 uses and starts hydraulic stem 26 after a period and drives extrusion otter board 25 extrusion sponge layer 24, the water in the water absorption sponge layer 24 is extruded out and drops to the lower end of the dust and mist removing chamber 6 from the meshes of the mesh fixing plate 23.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a coal fired boiler's flue gas integrated processing system, includes the casing, its characterized in that: the device comprises a shell, and is characterized in that a first partition plate and a second partition plate are sequentially arranged in the shell from bottom to top, the interior of the shell is divided into a waste heat recovery cavity, a desulfurization and denitrification cavity and a dedusting and demisting cavity from bottom to top by the first partition plate and the second partition plate, a vertical spiral flue gas pipeline is fixed in the waste heat recovery cavity, a raw flue gas inlet pipe of the spiral flue gas pipeline extends out of the shell, a raw flue gas outlet pipe of the spiral flue gas pipeline extends out of the shell and then is communicated with the bottom of the desulfurization and denitrification cavity, a water inlet is formed in one side of the lower end of the waste heat recovery cavity, and a; a plurality of mesh supporting plates are obliquely arranged in the desulfurization and denitrification cavity, a desulfurizer or a denitrification agent is arranged in two adjacent mesh supporting plates, a connecting rod is arranged between the two adjacent mesh supporting plates, a vibration motor is arranged at the lower end of the second partition plate and connected with a driven rod, and the other end of the driven rod is connected with the mesh supporting plate positioned at the uppermost end; the flue gas outlet duct of SOx/NOx control cavity stretches out the casing outer wall and communicates with dust removal defogging cavity, and upper portion is provided with dust removal mechanism in the dust removal defogging cavity, and dust removal mechanism upper portion is provided with defogging mechanism, and dust removal defogging cavity top is provided with clean flue gas outlet.
2. The integrated processing system for flue gas of coal-fired boiler according to claim 1, characterized in that: the dust removal mechanism comprises water pipes which are uniformly and parallelly arranged at the middle upper part of the dust removal and demisting chamber, a water inlet main pipe used for communicating the water pipes and spray heads which are uniformly arranged at the lower ends of the water pipes.
3. The integrated processing system for flue gas of coal-fired boiler according to claim 1, characterized in that: the demisting mechanism comprises a mesh fixing plate fixed on the inner wall of the shell, a water absorption sponge layer arranged on the mesh fixing plate, an extrusion screen plate placed on the upper surface of the water absorption sponge layer, and a telescopic rod, wherein the end of the piston rod is fixed with the extrusion screen plate, and the other end of the piston rod is fixed with the top of the shell.
4. The integrated processing system for flue gas of coal-fired boiler according to claim 1, characterized in that: the first partition board is a downward inclined board, and the second partition board is an upward convex board.
5. The integrated processing system for flue gas of coal-fired boiler according to claim 4, characterized in that: the mesh supporting plate inclines upwards towards the direction of the communicating end of the original flue gas outlet pipe of the spiral flue gas pipeline and the desulfurization and denitrification cavity, and the first partition plate inclines downwards towards the direction of the communicating end of the original flue gas outlet pipe of the spiral flue gas pipeline and the desulfurization and denitrification cavity.
6. The integrated processing system for flue gas of coal-fired boiler according to claim 4, characterized in that: the vibrating motor is arranged at the highest position of the lower surface of the second partition plate.
7. The integrated processing system for flue gas of coal-fired boiler according to claim 4, characterized in that: and the upper end of the second clapboard is provided with a water outlet of the dedusting and demisting chamber.
8. The integrated processing system for flue gas of coal-fired boiler according to claim 7, characterized in that: and the communicating end of the flue gas outlet pipe of the desulfurization and denitrification chamber and the dedusting and demisting chamber is higher than the highest part of the second partition plate.
9. The integrated processing system for flue gas of coal-fired boiler according to claim 1, characterized in that: the bottom of the waste heat recovery cavity is provided with a water outlet, and a check valve is arranged on the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294190.7U CN210645627U (en) | 2019-08-12 | 2019-08-12 | Comprehensive flue gas treatment system of coal-fired boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294190.7U CN210645627U (en) | 2019-08-12 | 2019-08-12 | Comprehensive flue gas treatment system of coal-fired boiler |
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| CN210645627U true CN210645627U (en) | 2020-06-02 |
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| CN201921294190.7U Active CN210645627U (en) | 2019-08-12 | 2019-08-12 | Comprehensive flue gas treatment system of coal-fired boiler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354315A (en) * | 2020-11-06 | 2021-02-12 | 朱立飞 | Dust collecting equipment suitable for mill |
| CN112675655A (en) * | 2020-12-28 | 2021-04-20 | 山东诺方电子科技有限公司 | Self-cleaning water filtering dust removal device and method |
| CN112933801A (en) * | 2021-01-26 | 2021-06-11 | 江苏海洋大学 | Automatic change environmental protection dust collecting equipment in engineering production workshop |
-
2019
- 2019-08-12 CN CN201921294190.7U patent/CN210645627U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354315A (en) * | 2020-11-06 | 2021-02-12 | 朱立飞 | Dust collecting equipment suitable for mill |
| CN112675655A (en) * | 2020-12-28 | 2021-04-20 | 山东诺方电子科技有限公司 | Self-cleaning water filtering dust removal device and method |
| CN112933801A (en) * | 2021-01-26 | 2021-06-11 | 江苏海洋大学 | Automatic change environmental protection dust collecting equipment in engineering production workshop |
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