CN201244507Y - Heated air circulation improved device of vertical mill system - Google Patents
Heated air circulation improved device of vertical mill system Download PDFInfo
- Publication number
- CN201244507Y CN201244507Y CNU2008200606223U CN200820060622U CN201244507Y CN 201244507 Y CN201244507 Y CN 201244507Y CN U2008200606223 U CNU2008200606223 U CN U2008200606223U CN 200820060622 U CN200820060622 U CN 200820060622U CN 201244507 Y CN201244507 Y CN 201244507Y
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- hot
- air
- vertical mill
- hot air
- blast stove
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Abstract
The utility model relates to a hot air circulation improved device of a vertical mill system, which belongs to the field of metallurgical machinery parts. The device comprises a hot air stove (1) and a vertical mill (2); the hot air stove (1) is provided with a secondary fan exhaust inlet (5) and an air outlet (7); the air outlet (7) is connected with the vertical mill (2); the vertical mill (2) is provided with an exhaust outlet (3); a hot air circulation pipe (4) is arranged from the back of the exhaust outlet (3) to the front of the hot air stove (1); the device is characterized in that a hot air return pipe (9) is added from the back of the exhaust outlet (3) of the vertical mill (2) to the secondary fan exhaust inlet (5) of the hot air stove (1); the inlet of the hot air return pipe (9) is provided with a valve (10); a three-way pipe (11) is arranged in front of the secondary fan exhaust inlet (5). The device has simple structure, is convenient to be installed, can effectively improve and utilize the efficiency of the circulating hot air and resource utilization rate, reduce energy consumption and cost, and improve efficiency.
Description
Technical field
The utility model relates to heated air circulation device, relates in particular to the improved device of vertical mill system hot air circulation.
Background technology
Blow out thermal current to the Vertical Mill preheating behind the common ambient atmosphere air of hot-blast stove by the heating suction.Along with the variation of output, the Vertical Mill preheating can become the temperature requirement of the temperature outlet of hot-blast stove, and Vertical Mill requires also very strict to the combustion chamber draft of bearing of hot-blast stove simultaneously.As shown in Figure 1, hot-blast stove has the overfire air fan inlet scoop, the hot air circulation return air inlet, and water inlet and air outlet, air outlet is received Vertical Mill, and Vertical Mill has exhaust outlet, to hot-blast stove the hot air circulation pipeline is arranged behind the exhaust outlet.The negative pressure of hot-blast stove being born because of the Vertical Mill mechanical performance difference of various countries also are not quite similar, and the negative pressure that the Vertical Mill that general offshore company produces can bear hot-blast stove almost requires to reach more than the 300pa.Because Vertical Mill to the requirement of hot-blast stove on parameter, though the hot air circulation pipeline is arranged at present, still can cause the hot air circulation rate deficiency of hot-blast stove, only reaches 60%～80%, resource utilization is not enough, does not reach the cost efficiency requirement that enterprise proposes.
Summary of the invention
Technical problem to be solved in the utility model is the improved device that increases the vertical mill system hot air circulation, makes the hot air circulation rate improve 10%, reduces by 5% fuel energy consumption, and resource utilization is not enough in the solution prior art, the defective that consumes energy is many.Technical scheme
A kind of vertical mill system hot air circulation improved device, comprise hot-blast stove 1 and Vertical Mill 2, hot-blast stove 1 has overfire air fan inlet scoop 5 and air outlet 7, air outlet 7 is received Vertical Mill 2, Vertical Mill 2 has exhaust outlet 3, there is hot air circulation pipeline 4 exhaust outlet 3 backs to hot-blast stove 1, it is characterized in that: increase a hot blast return air pipeline 9 from 5 of overfire air fan inlet scoops to hot-blast stove 1 behind the exhaust outlet 3 of Vertical Mill 2.
Described hot blast return air pipeline 9 is connected to the overfire air fan inlet scoop 5 of hot-blast stove 1 for the hot air circulation pipeline 4 behind exhaust outlet 3.
Described hot blast return air pipeline 9 inlets are equipped with valve 10.
Threeway 11 is housed before overfire air fan inlet scoop 5, and described hot blast return air pipeline 9 is connected to an end of overfire air fan inlet scoop 5 for being connected in this threeway 11.
Beneficial effect
This apparatus structure is simple, and is easy for installation, can improve the efficient of utilizing circulating air effectively, improves resource utilization, reduces energy resource consumption, and increase efficient reduces cost.
Description of drawings
Fig. 1 is the utility model prior art schematic diagram.
Fig. 2 is the utility model schematic diagram.
1 is hot-blast stove, and 2 is Vertical Mill, and 3 is the Vertical Mill exhaust outlet, and 4 is the hot air circulation pipeline, 5 is hot-blast stove overfire air fan inlet scoop, and 6 for hot air furnace hot air loops back the air port, and 7 is the hot-blast stove air outlet, and 8 is the hot-blast stove water inlet, 9 is the hot blast return air duct, and 10 is valve, and 11 are threeway.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.
Blow out thermal current to Vertical Mill 2 preheatings behind the common ambient atmosphere air of hot-blast stove 1 by the heating suction.Along with the variation of output, Vertical Mill 2 preheatings can become the temperature requirement of the temperature outlet of hot-blast stove 1, and the combustion chamber draft of bearing of 2 pairs of hot-blast stoves 1 of Vertical Mill requires also very strict simultaneously.As shown in Figure 1, hot-blast stove 1 has overfire air fan inlet scoop 5, hot air circulation return air inlet 6, and water inlet 8 and air outlet 7, air outlet 7 is received Vertical Mill 2, and Vertical Mill 2 has exhaust outlet 3, and there is hot air circulation pipeline 4 exhaust outlet 3 backs to hot-blast stove 1.
Though hot-blast stove 1 has hot air circulation pipeline 4 can utilize waste heat, but because the 2 pairs of requirements of hot-blast stove 1 on technological parameter of Vertical Mill, can cause the hot air circulation rate deficiency of hot-blast stove 1, only reach 60%～80%, if install the overfire air fan inlet scoop 5 that hot-air that a hot blast return air duct 9 will externally discharge inserts hot-blast stove additional, mix the atmosphere that sucks, improve the temperature that sucks air, and realize adjusting pressure by the by-pass valve control on hot blast return air duct 9 10 and control, can reach the utilization rate of hot-blast stove 1 former waste heat 70%～90%.As shown in Figure 2, hot blast return air duct 9 is contained in hot air circulation pipeline 4 and arrives 11 of overfire air fan inlet scoop 5 threeways before, and threeway is a feeding normal air, and two feed circulating airs, mix wind and enter overfire air fan inlet scoop 5.
Claims (4)
1. vertical mill system hot air circulation improved device, comprise hot-blast stove (1) and Vertical Mill (2), hot-blast stove (1) has overfire air fan inlet scoop (5) and air outlet (7), air outlet (7) is received Vertical Mill (2), Vertical Mill (2) has exhaust outlet (3), there is a hot air circulation pipeline (4) exhaust outlet (3) back to hot-blast stove (1) is preceding, it is characterized in that: from exhaust outlet (3) back of Vertical Mill (2) to an increase hot blast return air pipeline (9) the overfire air fan inlet scoop (5) of hot-blast stove (1).
2. warm-air pipe air-returning device as claimed in claim 1 is characterized in that: described hot blast return air pipeline (9) is connected to the overfire air fan inlet scoop (5) of hot-blast stove (1) for the hot air circulation pipeline (4) behind exhaust outlet (3).
3. warm-air pipe air-returning device as claimed in claim 1 or 2 is characterized in that: described hot blast return air pipeline (9) inlet is equipped with valve (10).
4. warm-air pipe air-returning device as claimed in claim 1 or 2 is characterized in that: threeway (11) is housed in that overfire air fan inlet scoop (5) are preceding, described hot blast return air pipeline (9) is connected to an end of overfire air fan inlet scoop (5) for being connected in this threeway (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200606223U CN201244507Y (en) | 2008-06-27 | 2008-06-27 | Heated air circulation improved device of vertical mill system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200606223U CN201244507Y (en) | 2008-06-27 | 2008-06-27 | Heated air circulation improved device of vertical mill system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201244507Y true CN201244507Y (en) | 2009-05-27 |
Family
ID=40728322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200606223U Expired - Fee Related CN201244507Y (en) | 2008-06-27 | 2008-06-27 | Heated air circulation improved device of vertical mill system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201244507Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301921A (en) * | 2013-05-21 | 2013-09-18 | 吴海鸥 | Energy-saving and emission-reducing device and method for industrial vertical mill |
| CN105091551A (en) * | 2015-08-30 | 2015-11-25 | 汝州春秋生物质能源机电设备有限公司 | Biomass briquette hot blast heater of grain drying machine |
| CN107051689A (en) * | 2017-01-16 | 2017-08-18 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of lime stone dry grinding prepares arrangement |
-
2008
- 2008-06-27 CN CNU2008200606223U patent/CN201244507Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301921A (en) * | 2013-05-21 | 2013-09-18 | 吴海鸥 | Energy-saving and emission-reducing device and method for industrial vertical mill |
| CN105091551A (en) * | 2015-08-30 | 2015-11-25 | 汝州春秋生物质能源机电设备有限公司 | Biomass briquette hot blast heater of grain drying machine |
| CN107051689A (en) * | 2017-01-16 | 2017-08-18 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of lime stone dry grinding prepares arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20150627 |
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| EXPY | Termination of patent right or utility model |