CN203342902U - Tail wind water removing device for industrial vertical mill - Google Patents
Tail wind water removing device for industrial vertical mill Download PDFInfo
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- CN203342902U CN203342902U CN 201320283141 CN201320283141U CN203342902U CN 203342902 U CN203342902 U CN 203342902U CN 201320283141 CN201320283141 CN 201320283141 CN 201320283141 U CN201320283141 U CN 201320283141U CN 203342902 U CN203342902 U CN 203342902U
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- shaped pipe
- heat exchanger
- tail
- wind
- tail wind
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Abstract
The utility model discloses a tail wind water removing device for an industrial vertical mill. The tail wind water removing device adopts a U-shaped pipe, wherein two ends of the U-shaped pipe are connected with air return pipes respectively, a heat exchanger is arranged in the position of the U-shaped pipe, cold ends of the heat exchanger are mounted in the U-shaped pipe, a hot end of the heat exchanger is mounted at an outlet of the U-shaped pipe, and a self-sealing drainage pipe is arranged at the bottom of the U-shaped pipe. The device adopts the U-shaped pipe to be matched with the heat exchanger for removing water in tail wind, that is, the cold ends of the heat exchanger are used for cooling the tail wind to turn steam in the tail wind into water, so that the efficiency of the dust collector is improved, the work efficiency of the dust collector is improved, the load of a fan is reduced, the power consumption per unit of a product is reduced, the service life of a dust collecting bag is prolonged, and the production cost is further reduced.
Description
Technical field
The utility model relates to a kind of vertical mill system, particularly a kind of wind of the tail for industrial Vertical Mill de-watering apparatus.
Background technology
The industry Vertical Mill has the advantages such as technique is simple, mill efficiency is high, energy consumption is low, the unit ability is large, occupation area of equipment is little, is replacing rapidly traditional grinding process, in industries such as building materials, metallurgy, coals, is used widely.
In the Vertical Mill production process, material enters Vertical Mill, be extruded fragmentation, grinding between grinding roller and mill, the material after grinding is blown afloat and sends into the powder concentrator that is positioned at Vertical Mill top by the hot blast from hot-blast stove, by powder concentrator, the material after grinding is divided into to meal and fine powder.Fine powder is brought to dust-precipitator by thermal current, after collecting after filtration, sends into warehouse for finished product.In this process, slag and hot-air produce heat exchange, and moisture content is dried.Meal falls back on mill by grinding again, and tail wind is discharged into atmosphere.
The water content of material before entering Vertical Mill generally is not less than 8%, in order to maintain material bed stablizing on mill, also needs timely and appropriate discovery to spray water to the bed of material.Because thermal current contains moisture content, in order to guarantee the Quality and yield of product, in the service life of extension device consumable accessory, the outlet wind-warm syndrome of Vertical Mill must be higher than the steam dew-point temperature more than 20 degrees centigrade.
Therefore, vertical mill system contains moisture content, heat, dust and other all kinds of pernicious gases in the tail wind to airborne release.In order to reclaim heat and dust to reach the effect of energy-saving and emission-reduction, industrial trying in recent years installed backwind tube additional on vertical mill system, and the waste heat in the hot tail wind of part (<50%) is utilized.Moisture but this has also circulated simultaneously in tail wind, improved the water capacity of system, makes the moisture balance in vertical mill system wayward, the easy dewfall of dust-precipitator.
It is all that single argument is controlled that current industrial Vertical Mill moisture balance is controlled, and namely the experience of single temperature variable is controlled.System running temperature substantially constant, insensitive to system water capacity and environmental temperature fluctuation.This has increased energy consumption, has reduced the operational efficiency of dust-precipitator and the service life of dust collecting sleeve.
In recent years, country-driven energy-saving and emission-reduction policy, particularly proposed stricter requirement to the industrial discharge total amount since 2013, makes building materials grinding industry be faced with formidable challenges in the environmental protection and energy saving link.
Reduce the discharge of industrial vertical mill system, increase the utilization rate of waste heat, key issue is that tail wind dewaters.
The utility model content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of tail wind de-watering apparatus that can be dewatered to the tail wind of vertical mill system, in the utilization rate that increases waste heat, has improved the operational efficiency of dust-precipitator and the service life of dust collecting sleeve.
The technical solution of the utility model is achieved in that
A kind of wind of the tail for industrial Vertical Mill de-watering apparatus, described tail wind de-watering apparatus is the U-shaped pipe, the two ends of U-shaped pipe connect respectively backwind tube, at the U-shaped pipe, place is provided with heat exchanger, the cold junction of heat exchanger is arranged in the U-shaped pipe, the hot junction of heat exchanger is arranged on the exit position of U-shaped pipe, in the bottom of U-shaped pipe, is provided with the self sealss drainpipe.
In order further to improve heat transfer effect, as preferably, in cold junction, the hot junction of heat exchanger, heat exchange fin all is housed.
As preferably, the cross-sectional area of U-shaped pipe is greater than the cross-sectional area of backwind tube.The Main Function of U-shaped pipe is to reduce wind speed, thereby can reduce the wind speed of tail wind, makes the moisture content in tail wind have time enough to separate.The existence form of water in tail gas has two kinds, and the one, gas, the 2nd, the liquid state existed with little water droplet form, i.e. water smoke.Under the condition of high wind speed, water smoke can't be separated from air-flow.Therefore need the U-shaped pipe to reduce wind speed, a metastable environment is provided, make little water droplet the time enough cohesion be arranged and separate from thermal current.
As preferably, the cross-sectional area of U-shaped pipe is 5～6 times of backwind tube cross-sectional area.Thereby make wind speed drop to 3 meter per second left and right, make effectively to reduce wind speed, and make the moisture content in tail wind have time enough to separate.
As preferably, described self sealss drainpipe is a U-shaped drainpipe.In the U-shaped drainpipe, the water seal of water storage formation all the time spills from here to prevent tail wind, and the water in the U-shaped pipe can spill out by the self sealss drainpipe.
Effect of the present utility model is as follows: the utility model adopts the U-shaped pipe to coordinate heat exchanger to be dewatered to tail wind, the cold junction that is heat exchanger is lowered the temperature to tail wind, make the aqueous vapor in tail wind become water, improved the efficiency of dust-precipitator, the raising of dust-precipitator operating efficiency also can alleviate the load of blower fan, reduces the power consumption of unit product.The prolongation in dust collecting sleeve service life, reduced again production cost.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
The specific embodiment of the present utility model is as follows:
Embodiment: a kind of wind of the tail for industrial Vertical Mill de-watering apparatus, as shown in Figure 1, described tail wind de-watering apparatus is a U-shaped pipe 9, the two ends of U-shaped pipe 9 connect respectively backwind tube 8, the cross-sectional area of U-shaped pipe 9 is 5～6 times of backwind tube 8 cross-sectional areas, at the U-shaped pipe, 9 places are provided with heat exchanger, the cold junction 10 of heat exchanger is arranged in U-shaped pipe 9, the hot junction 11 of heat exchanger is arranged on the exit position of U-shaped pipe 9, on the cold junction 10 of heat exchanger, hot junction 11, heat exchange fin 13 all is housed, in the bottom of U-shaped pipe 9, is provided with self sealss drainpipe 12.Self sealss drainpipe 12 is a U-shaped drainpipe, in the U-shaped drainpipe all the time water storage form water seal and spill from here to prevent tail wind, and the water of 9 li of U-shaped pipes can spill out by self sealss drainpipe 12.
Tail wind enters U-shaped pipe 9 along the direction of arrow in Fig. 1 through backwind tube 8, through the cold junction 10 of over-heat-exchanger, is freezed, and by the cohesion of the aqueous water in tail wind, separate, tail wind is heated through the hot junction 11 of over-heat-exchanger again, again heats up.
Claims (5)
1. the wind of the tail for an industrial Vertical Mill de-watering apparatus, it is characterized in that: described tail wind de-watering apparatus is the U-shaped pipe, the two ends of U-shaped pipe connect respectively backwind tube, at the U-shaped pipe, place is provided with heat exchanger, the cold junction of heat exchanger is arranged in the U-shaped pipe, the hot junction of heat exchanger is arranged on the exit position of U-shaped pipe, in the bottom of U-shaped pipe, is provided with the self sealss drainpipe.
2. a kind of wind of the tail for industrial Vertical Mill de-watering apparatus according to claim 1, it is characterized in that: heat exchange fin all is equipped with in cold junction, hot junction at heat exchanger.
3. a kind of wind of the tail for industrial Vertical Mill de-watering apparatus according to claim 1, it is characterized in that: the cross-sectional area of U-shaped pipe is greater than the cross-sectional area of backwind tube.
4. a kind of wind of the tail for industrial Vertical Mill de-watering apparatus according to claim 3, it is characterized in that: the cross-sectional area of U-shaped pipe is 5～6 times of backwind tube cross-sectional area.
5. a kind of wind of the tail for industrial Vertical Mill de-watering apparatus according to claim 1, it is characterized in that: described self sealss drainpipe is a U-shaped drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320283141 CN203342902U (en) | 2013-05-21 | 2013-05-21 | Tail wind water removing device for industrial vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320283141 CN203342902U (en) | 2013-05-21 | 2013-05-21 | Tail wind water removing device for industrial vertical mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203342902U true CN203342902U (en) | 2013-12-18 |
Family
ID=49742842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320283141 Expired - Fee Related CN203342902U (en) | 2013-05-21 | 2013-05-21 | Tail wind water removing device for industrial vertical mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203342902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920376A (en) * | 2014-04-30 | 2014-07-16 | 四川省达州钢铁集团有限责任公司 | Low-energy-consumption hybrid white smoke elimination device |
-
2013
- 2013-05-21 CN CN 201320283141 patent/CN203342902U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920376A (en) * | 2014-04-30 | 2014-07-16 | 四川省达州钢铁集团有限责任公司 | Low-energy-consumption hybrid white smoke elimination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20140521 |