CN218455367U - Rotary cement kiln magnetic suspension fan oxygen boosting air input device - Google Patents
Rotary cement kiln magnetic suspension fan oxygen boosting air input device Download PDFInfo
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- CN218455367U CN218455367U CN202222411718.2U CN202222411718U CN218455367U CN 218455367 U CN218455367 U CN 218455367U CN 202222411718 U CN202222411718 U CN 202222411718U CN 218455367 U CN218455367 U CN 218455367U
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000001301 oxygen Substances 0.000 title claims abstract description 59
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 59
- 239000004568 cement Substances 0.000 title claims abstract description 35
- 239000000725 suspension Substances 0.000 title claims abstract description 34
- 239000003245 coal Substances 0.000 claims abstract description 89
- 230000001105 regulatory effect Effects 0.000 claims description 25
- 239000012528 membrane Substances 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000004378 air conditioning Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
An oxygen-enriched air input device for a magnetic suspension fan of a rotary cement kiln belongs to the technical field of rotary cement kilns. The method is characterized in that: an air inlet of the head coal air fan (8), an air inlet of the tail coal air fan (9) and an air inlet of the primary air fan (18) are all connected with an oxygen-enriched air generating device, an air outlet of the head coal air fan (8) is communicated with a kiln head (12) of the rotary kiln (13), an air outlet of the tail coal air fan (9) is communicated with the decomposing furnace (14), an air outlet of the primary air fan (18) is communicated with a combustion-supporting air port of a burner of the rotary kiln (13), a kiln tail of the rotary kiln (13) is communicated with the decomposing furnace (14), and the head coal air fan (8), the tail coal air fan (9) and the primary air fan (18) are all magnetic suspension fans. The utility model discloses a first coal wind, tail coal wind and the transport efficiency of wind are high, and the noise is low, and cost of maintenance is low, and long service life makes the cement industry can satisfy the standard and the regulation requirement that the country reduced industrial energy consumption.
Description
Technical Field
A rotary cement kiln magnetic suspension fan oxygen-enriched air input device belongs to the technical field of rotary cement kilns.
Background
The rotary cement kiln is a high-energy-consumption device in the cement industry, and the rotary cement kiln adopts oxygen-enriched combustion, so that the production efficiency is improved, and energy conservation and emission reduction are realized. Current rotary cement kiln is at the during operation, and rotary cement kiln's rich wind of supporting is sent into through the roots's fan, and the roots's fan not only energy resource consumption is high, inefficiency, the vibration is great, the noise is big, and the maintenance cost is higher moreover, leads to the energy consumption among the operation process of current rotary cement kiln to be high, and operation and maintenance cost are all very high, and then have increased the manufacturing cost of enterprise, and energy utilization is rateed lowly.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the rotary cement kiln magnetic suspension fan oxygen-enriched air input device replaces the Roots fan with a magnetic suspension fan, reduces energy consumption and maintenance cost.
The utility model provides a technical scheme that its technical problem adopted is: this rotary cement kiln magnetic suspension fan oxygen boosting air input device, its characterized in that: the kiln head of the rotary kiln is communicated with an air outlet of the head coal air fan, the air outlet of the tail coal air fan is communicated with a decomposing furnace, the air outlet of the primary air fan is communicated with a combustion-supporting air port of a burner of the rotary kiln, a kiln tail of the rotary kiln is communicated with the decomposing furnace, and the head coal air fan, the tail coal air fan and the primary air fan are all magnetic suspension fans.
Preferably, the combustion-supporting air ports of the combustor comprise an inner combustion-supporting air port and an outer combustion-supporting air port, and the air outlet of the primary air fan is communicated with the inner combustion-supporting air port and the outer combustion-supporting air port simultaneously.
Preferably, the system also comprises a head coal air regulating valve, a tail coal air regulating valve and a primary air regulating valve, wherein an air outlet of the head coal air regulating valve is communicated with an air inlet of a head coal air fan, an air inlet of the head coal air regulating valve is communicated with the atmosphere, an air outlet of the tail coal air regulating valve is communicated with an air inlet of a tail coal air fan, an air inlet of the tail coal air regulating valve is communicated with the atmosphere, an air outlet of the primary air regulating valve is communicated with an air inlet of the primary air fan, and an air inlet of the primary air regulating valve is communicated with the atmosphere.
Preferably, the air purifier also comprises a filter, and an air inlet of the oxygen-enriched air generating device is communicated with the filter.
Preferably, the filter includes a primary filter, a medium filter and a high efficiency filter which are arranged in sequence along the air intake direction.
Preferably, the oxygen-enriched air generating device comprises a centrifugal high-pressure fan, a membrane type oxygen-enriched generator, a dry vacuum pump and a pressure stabilizing tank which are connected in sequence.
Preferably, the oxygen-enriched air generating device further comprises an exhaust valve, an air inlet of the exhaust valve is communicated with the top of the pressure stabilizing tank, and an air outlet of the exhaust valve is communicated with the atmosphere.
Preferably, a vacuum meter is arranged on a pipeline between the membrane type oxygen-enriched generator and the dry vacuum pump.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
this rotary cement kiln magnetic suspension fan oxygen boosting air input device has adopted the magnetic suspension fan to realize the transport of first coal breeze, tail coal breeze and wind, compare with adopting roots's fan transport, the transport efficiency of first coal breeze, tail coal breeze and wind is high, and the noise is low, cost of maintenance is low, and long service life, make the cement industry can satisfy the standard and the regulation requirement that the country reduces industrial energy consumption, first coal breeze, tail coal breeze and wind all adopt the oxygen boosting air, the oxygen concentration in the rotary cement kiln has been guaranteed, guarantee the abundant burning of coal.
Drawings
FIG. 1 is a schematic structural diagram of an oxygen-enriched air input device of a magnetic suspension fan of a rotary cement kiln.
In the figure: 1. the device comprises a filter 101, a primary filter 102, a secondary filter 103, a high-efficiency filter 2, a centrifugal high-pressure fan 3, a membrane type oxygen-rich generator 4, a vacuum meter 5, a dry vacuum pump 6, a surge tank 7, an oxygen-rich air pipe 8, a head coal air fan 9, a tail coal air fan 10, a head coal air blowing pipe 11, a tail coal air blowing pipe 12, a kiln head 13, a rotary kiln 14, a decomposing furnace 15, a head coal air adjusting valve 16, a tail coal air adjusting valve 17, a primary air blowing pipe 18, a primary air fan 19 and a primary air adjusting valve.
Detailed Description
The present invention is further described with reference to specific embodiments, however, it will be understood by those skilled in the art that the detailed description given herein with respect to the drawings is for better explanation and that the present invention is necessarily to be construed as limited to those embodiments, and equivalents or common means thereof will not be described in detail but will fall within the scope of the present application.
Fig. 1 is a preferred embodiment of the present invention, and the present invention will be further explained with reference to fig. 1.
An oxygen-enriched air input device of a magnetic suspension fan of a cement rotary kiln comprises a head coal air fan 8, a tail coal air fan 9 and a primary air fan 18, wherein an air inlet of the head coal air fan 8, an air inlet of the tail coal air fan 9 and an air inlet of the primary air fan 18 are all connected with an oxygen-enriched air generating device, an air outlet of the head coal air fan 8 is communicated with a kiln head 12 of a rotary kiln 13, an air outlet of the tail coal air fan 9 is communicated with a decomposing furnace 14, an air outlet of the primary air fan 18 is communicated with a combustion-supporting air port of a combustor of the rotary kiln 13, a kiln tail of the rotary kiln 13 is communicated with the decomposing furnace 14, and the head coal air fan 8, the tail coal air fan 9 and the primary air fan 18 are all magnetic suspension fans. This rotary cement kiln magnetic suspension fan oxygen boosting air input device has adopted the magnetic suspension fan to realize the transport of head coal wind, tail coal wind and wind, compare with adopting roots's fan transport, the transport efficiency of head coal wind, tail coal wind and wind is high, and the noise is low, cost of maintenance is low, and long service life, make the cement industry can satisfy the standard and the regulation requirement that the country reduces industrial energy consumption, head coal wind, tail coal wind and wind all adopt the oxygen boosting air, the oxygen concentration in the rotary cement kiln has been guaranteed, guarantee that the coal fully burns.
Specifically, the method comprises the following steps: as shown in fig. 1: the oxygen-enriched air input device of the magnetic suspension fan of the rotary cement kiln further comprises a filter 1, and the filter 1 is communicated with an air inlet of the oxygen-enriched air generating device. The filter 1 comprises a primary filter 101, a secondary filter 102 and a high efficiency filter 103 which are arranged in sequence along the air intake direction, and the air outlet of the high efficiency filter 103 is communicated with the oxygen-enriched air generating device.
The oxygen-enriched air generating device comprises a centrifugal high-pressure fan 2, a membrane type oxygen-enriched generator 3, a dry vacuum pump 5 and a pressure stabilizing tank 6 which are connected in sequence, wherein an air inlet of the centrifugal high-pressure fan 2 is communicated with an air outlet of a high-efficiency filter 103, and a vacuum meter 4 is arranged on a pipeline between the membrane type oxygen-enriched generator 3 and the dry vacuum pump 5. The top of the pressure stabilizing tank 6 is connected with an exhaust valve.
In this embodiment, the left end of the rotary kiln 13 is a kiln tail, the right end is a kiln head 12, the kiln tail is connected with a decomposing furnace 14, and the decomposing furnace 14 is arranged at the left side of the rotary kiln 13.
The oxygen-enriched air input device of the magnetic suspension fan of the rotary cement kiln further comprises an oxygen-enriched air pipe 7, a head coal air blowing pipe 10, a tail coal air blowing pipe 11 and a primary air blowing pipe 17, wherein an air inlet of the head coal air fan 8, an air inlet of the tail coal air fan 9 and an air inlet of the primary air fan 18 are communicated with the oxygen-enriched air pipe 7, and an air inlet of the oxygen-enriched air pipe 7 is communicated with the top of the pressure stabilizing tank 6. The air outlet of the head coal air blower 8 is communicated with the kiln head 12 through a head coal air blowing pipe 10, the air outlet of the tail coal air blower 9 is communicated with the decomposing furnace 14 through a tail coal air blowing pipe 11, and the air outlet of the primary air blower 18 is communicated with the burner of the rotary kiln 13 through a primary air blowing pipe 17.
In this embodiment, the combustion-supporting tuyere of the combustor includes an inner combustion-supporting tuyere and an outer combustion-supporting tuyere, and the air outlet of the primary air blowing pipe 17 is simultaneously communicated with the inner combustion-supporting tuyere and the outer combustion-supporting tuyere.
The oxygen-enriched air input device of the magnetic suspension fan of the rotary cement kiln further comprises a head coal air regulating valve 15, a tail coal air regulating valve 16 and a primary air regulating valve 19, wherein an air inlet of the head coal air regulating valve 15 is communicated with the atmosphere, and an air outlet of the head coal air regulating valve 15 is communicated with an air inlet of a head coal air fan 8 so as to conveniently regulate the concentration of oxygen in head coal air fed into the kiln head 12. The air inlet of the tail coal air adjusting valve 16 is communicated with the atmosphere, and the air outlet of the tail coal air adjusting valve 16 is communicated with the air inlet of the tail coal air fan 9 so as to adjust the concentration of oxygen in the tail coal air fed into the decomposing furnace 14. The air inlet of the primary air regulating valve 19 is communicated with the atmosphere, and the air outlet of the primary air regulating valve 19 is communicated with the air inlet of the primary air fan 18 so as to regulate the concentration of oxygen in the primary air fed into the combustor.
The head coal air blower 8, the tail coal air blower 9 and the primary air blower 18 are all magnetic suspension blowers, the magnetic suspension blowers adopt magnetic suspension bearings without contact and mechanical friction and high-speed high-power permanent magnet synchronous motors to directly drive the high-efficiency fluid impeller, the defects of the Roots blower are overcome, the magnetic suspension blower has the advantages of high efficiency, low noise, less faults, no need of a lubricating system and the like, even if the magnetic suspension bearings break down, the rotor rotating at high speed can still be safely stopped by depending on the protective bearings in the system, and the serious damage of equipment can not be caused.
The working process of the oxygen-enriched air input device of the magnetic suspension fan of the rotary cement kiln is as follows: the centrifugal high-pressure fan 2 pumps air, the air is filtered by the primary filter 101, the intermediate filter 102 and the high-efficiency filter 103 and then enters the membrane type oxygen-enriched generator 3, and oxygen-enriched air generated by the membrane type oxygen-enriched generator 3 is pressurized by the dry vacuum pump 5 and then stored in the pressure stabilizing tank 6 to ensure the sufficiency of the oxygen-enriched air. The first coal air blower 8 blows coal into the kiln head 12 through the burner, the tail coal air blower 9 blows coal into the decomposing furnace 14, and the primary air blower 18 blows combustion-supporting air into the burner and provides oxygen consumed by coal combustion for the burner.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a rotary cement kiln magnetic suspension fan oxygen boosting air input device which characterized in that: the kiln tail gas recovery device comprises a head coal air fan (8), a tail coal air fan (9) and a primary air fan (18), wherein an air inlet of the head coal air fan (8), an air inlet of the tail coal air fan (9) and an air inlet of the primary air fan (18) are respectively connected with an oxygen-enriched air generating device, an air outlet of the head coal air fan (8) is communicated with a kiln head (12) of a rotary kiln (13), an air outlet of the tail coal air fan (9) is communicated with a decomposing furnace (14), an air outlet of the primary air fan (18) is communicated with a combustion-supporting air port of a burner of the rotary kiln (13), the kiln tail of the rotary kiln (13) is communicated with the decomposing furnace (14), and the head coal air fan (8), the tail coal air fan (9) and the primary air fan (18) are magnetic suspension fans.
2. The rotary cement kiln magnetic suspension fan oxygen-enriched air input device as claimed in claim 1, is characterized in that: the combustion-supporting air ports of the combustor comprise an inner combustion-supporting air port and an outer combustion-supporting air port, and the air outlet of the primary air fan (18) is communicated with the inner combustion-supporting air port and the outer combustion-supporting air port simultaneously.
3. The rotary cement kiln magnetic suspension fan oxygen-enriched air input device as claimed in claim 1, is characterized in that: the coal-air-conditioning system is characterized by further comprising a head coal air regulating valve (15), a tail coal air regulating valve (16) and a primary air regulating valve (19), wherein an air outlet of the head coal air regulating valve (15) is communicated with an air inlet of a head coal air fan (8), an air inlet of the head coal air regulating valve (15) is communicated with the atmosphere, an air outlet of the tail coal air regulating valve (16) is communicated with an air inlet of a tail coal air fan (9), an air inlet of the tail coal air regulating valve (16) is communicated with the atmosphere, an air outlet of the primary air regulating valve (19) is communicated with an air inlet of a primary air fan (18), and an air inlet of the primary air regulating valve (19) is communicated with the atmosphere.
4. The rotary cement kiln magnetic suspension fan oxygen-enriched air input device as claimed in claim 1, is characterized in that: the oxygen-enriched air generating device is characterized by further comprising a filter (1), and an air inlet of the oxygen-enriched air generating device is communicated with the filter (1).
5. The rotary cement kiln magnetic suspension fan oxygen-enriched air input device as claimed in claim 4, is characterized in that: the filter (1) comprises a primary filter (101), a medium-efficiency filter (102) and a high-efficiency filter (103) which are sequentially arranged along the air inlet direction.
6. The rotary cement kiln magnetic suspension fan oxygen-enriched air input device as claimed in claim 1 or 4, is characterized in that: the oxygen-enriched air generating device comprises a centrifugal high-pressure fan (2), a membrane type oxygen-enriched generator (3), a dry vacuum pump (5) and a pressure stabilizing tank (6) which are connected in sequence.
7. The rotary cement kiln magnetic suspension fan oxygen-enriched air input device as claimed in claim 6, wherein: the oxygen-enriched air generating device also comprises an exhaust valve, wherein an air inlet of the exhaust valve is communicated with the top of the pressure stabilizing tank (6), and an air outlet of the exhaust valve is communicated with the atmosphere.
8. The rotary cement kiln magnetic suspension fan oxygen-enriched air input device as claimed in claim 6, is characterized in that: a vacuum meter (4) is arranged on a pipeline between the membrane type oxygen-enriched generator (3) and the dry vacuum pump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222411718.2U CN218455367U (en) | 2022-09-13 | 2022-09-13 | Rotary cement kiln magnetic suspension fan oxygen boosting air input device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222411718.2U CN218455367U (en) | 2022-09-13 | 2022-09-13 | Rotary cement kiln magnetic suspension fan oxygen boosting air input device |
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| CN218455367U true CN218455367U (en) | 2023-02-07 |
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| CN202222411718.2U Active CN218455367U (en) | 2022-09-13 | 2022-09-13 | Rotary cement kiln magnetic suspension fan oxygen boosting air input device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118482569A (en) * | 2024-07-12 | 2024-08-13 | 西南科技大学 | Clinker calcination production equipment and production method for pure oxygen combustion of rotary kiln |
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2022
- 2022-09-13 CN CN202222411718.2U patent/CN218455367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118482569A (en) * | 2024-07-12 | 2024-08-13 | 西南科技大学 | Clinker calcination production equipment and production method for pure oxygen combustion of rotary kiln |
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