CN201300019Y - Smoke steady flow collection drum - Google Patents
Smoke steady flow collection drum Download PDFInfo
- Publication number
- CN201300019Y CN201300019Y CNU2008202159718U CN200820215971U CN201300019Y CN 201300019 Y CN201300019 Y CN 201300019Y CN U2008202159718 U CNU2008202159718 U CN U2008202159718U CN 200820215971 U CN200820215971 U CN 200820215971U CN 201300019 Y CN201300019 Y CN 201300019Y
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- flue gas
- smoke
- current stabilization
- air inlet
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Abstract
A smoke steady flow collection drum is characterized by comprising an outer drum provided with a high temperature smoke inlet, a low temperature smoke inlet, a mixed smoke outlet, a smoke stabilizing section, a smoke steady flow collection section, an ash hopper, a dust valve and an ash hopper, wherein the dust valve is arranged at the lower part of the outer drum; the high temperature smoke inlet is accessed along the tangent line of the stabilizing section at one side of the collection drum; the low temperature smoke inlet is accessed along the tangent line of the stabilizing section at the other side of the collection drum; the two tangent lines are parallel, with reversal air inlet directions. The collection drum can completely mix high temperature smoke and low temperature smoke, to protect cloth bag from the smoke of ultrahigh temperature in dust cleaner, and prevent smoke from refluxing and reverse irrigation, and the smoke steady flow collection drum can replace cyclone dust cleaner to deposit large particles. The smoke steady flow collection drum has small occupied area, stable operation, low resistance, low maintenance strength, low energy consumption and low investment.
Description
Technical field
The utility model relates in the electric stove dust system device that high-temperature flue gas and low-temperature flue gas are mixed, and makes it to enter sack cleaner after flue-gas temperature reduces, and is to make high low-temperature flue gas can fully mix set tube with steady air flow.
Background technology
In the electric stove dust system, the especially dedusting of the above electric furnace of 50t, smoke evacuation is discharged with outer smoke evacuation through electric furnace the 4th hole (or second hole) and is discharged the dust collecting process flow process that combines through the roof fume trap cover in all adopting usually both at home and abroad.Row's high-temperature flue gas (about 1000 ℃) is through equipment such as combustion chamber, expansion chamber, water-cooled flue, coolers promptly, temperature drops to about 250 ℃, mix with the low-temperature flue gas (60-85 ℃) that effluxes of roof fume trap cover then, flue-gas temperature is dropped to below 110 ℃, enter sack cleaner.
Because interior smoke discharging temperature is dropped to about 250 ℃ from about 1000 ℃, and required equipment is more, SR is bigger, in interior smoke discharging system booster fan is set usually, and interior smoke discharging is mixed with discharged gas fume through behind the booster fan again.The type selecting parameter of booster fan is extremely important, pressure head selects low, and then interior smoke discharging can't be taken away with discharged gas fume mixes, and the pressure head choosing is high, then interior smoke discharging can't mix with discharged gas fume, cause two kinds of phenomenons to take place: the one, flue gas mixes inhomogeneous, and mixed flue gas surpasses 120 ℃, can burn cloth bag after entering deduster, make systemic breakdown, the 2nd, hinder discharged gas fume and enter deduster, even can make discharged gas fume pour in down a chimney back the roof cover, dust pelletizing system is ineffective.
The type selecting parameter of booster fan is a difficult problem always, because the smelting operating mode of electric furnace does not stop to change, the temperature of interior smoke discharging also changes thereupon, system demand pressure is also changing, so do not provide accurate data in practice with the provisional capital both at home and abroad, generally all after theory is calculated, the maximum pressure head type selecting of in actual design, pressing booster fan, this has just caused system's frequent pressure head that is in operation too high, and flue gas overtemperature or flue gas pour in down a chimney phenomenon to be taken place often.So that whole dust-removal system can not produce a desired effect even paralyse state.
Existing dust pelletizing system is in operation and also has a difficult problem, be exactly that cloth bag is damaged easily, this is bigger because of the contained dust granules of electric furnace flue gas, and has certain magnetic, for addressing this problem, the general cyclone dust collectors that adopt carry out elementary dedusting, remove big dust granules in the flue gas, but behind the employing cyclone dust collectors, SR is bigger, must adopt more high-head blower fan, and this has just increased the power of motor, the cost that has also just increased operation and safeguarded, the theory of this and energy-conserving and environment-protective is inconsistent.
Summary of the invention
The utility model purpose is: the set tube that proposes a kind of new current stabilization flue gas, high-temperature flue gas and low temperature are fully mixed, flue-gas temperature is dropped to below certain temperature, make the work of the suitable sack cleaner of flue gas, the overtemperature that removes smoke burns cloth bag or flue gas pours in down a chimney phenomenon, substitutes cyclone dust collectors sedimentation big dust particle simultaneously.
Technical solution of the present utility model is: the set tube of flue gas current stabilization, it is characterized in that being provided with a urceolus, on outer cylinder body, be provided with the high-temperature flue gas air inlet, low-temperature flue gas air inlet, mixed flue gas air outlet, flue gas pressure-stabilizing section, flue gas current stabilization manifold section, ash bucket, unloading valve, ash bucket, wherein unloading valve is in the bottom of urceolus, the high-temperature flue gas air inlet is tangentially inserted by set tube one side pressure-stabilizing section, the low-temperature flue gas air inlet tangentially inserts from set tube opposite side pressure-stabilizing section, above-mentioned two tangential directions are parallel, and the air intake direction is opposite; The import that is low temperature and high-temperature flue gas is all at the two ends of outer cylinder body circular section one diameter, high low-temperature flue gas is all along helical trajectory is out of shape down, mixed cigarette district from bottom to top, behind gas current stabilization manifold section current stabilization, discharge by the air outlet at gas current stabilization manifold section top, the big dust particle of sedimentation is regularly discharged outward transport by the unloading valve of ash bucket below, can make the full and uniform mixing of flue gas, can reduce the pressure influence of booster fan again, thereby stablize the pressure of dust pelletizing system, and replace cyclone dust collectors sedimentation bulky grain, thereby reduce the resistance of system.
The height 1 of high-temperature flue gas air inlet is generally a little less than low-temperature flue gas air inlet 2, or can be identical, the size of air inlet is relevant with air inflow, and the high-temperature flue gas air inlet is a rectangular configuration, its size (cross section of latus rectum) is connected with flue gas pressure-stabilizing section 4 at opposite side less than the low temperature air inlet.
The utility model current stabilization set tube (having used the utility model current stabilization set tube) has following beneficial effect:
1. guarantee the abundant mixing of high-temperature flue gas and low-temperature flue gas, the flue-gas temperature that enters deduster is consistent with theoretical calculating, be no more than the serviceability temperature of cloth bag.
2. can unload and cushion the pressure head of booster fan, prevent smoke backflow so that pour in down a chimney back the roof cover.
3. replace cyclone dust collectors sedimentation big dust particle, reduce the impact of big dust particle, prolong the service life of cloth bag cloth bag,
4. minimizing SR reduces the power of booster fan institute gas-distributing motor, energy efficient.
5. floor space is little, and is stable, and maintenance workload is little.
6. critical piece is steel construction, reduced investment, and service life is long.
Description of drawings
Fig. 1 is flue gas current stabilization set tube side elevational view,
Fig. 2 is flue gas current stabilization set tube vertical view.
Among the figure: 1. high-temperature flue gas air inlet, 2. low-temperature flue gas air inlet, 3. mixed flue gas air outlet, 4. flue gas pressure-stabilizing section, 5. flue gas current stabilization manifold section, 6. ash bucket, 7. unloading valve, 8. support.
The specific embodiment
Referring to description of drawings, flue gas current stabilization set tube is mainly by high-temperature flue gas air inlet 1, low-temperature flue gas air inlet 2, mixed flue gas air outlet 3, and flue gas pressure-stabilizing section 4, flue gas current stabilization manifold section 5, ash bucket 6, unloading valve 7, support 8 are formed.
High-temperature flue gas air inlet 1 is generally rectangular configuration, is connected with flue gas pressure-stabilizing section 4 in a side.
Low-temperature flue gas air inlet 2 is a rectangular configuration, is connected with flue gas pressure-stabilizing section 4 at opposite side.
Mixed flue gas air outlet 3 can be done circular or rectangular configuration according to actual needs, is connected with flue gas current stabilization manifold section 5 at the top.
Flue gas pressure-stabilizing section 4 is generally a section of urceolus, walks spiral trajectory from tangential direction, is connected with flue gas current stabilization manifold section 5.
Flue gas current stabilization manifold section 5 is columnar structured in the outer cylinder body, and the side is connected with flue gas pressure-stabilizing section 4, and the top is connected with mixed flue gas air outlet 3, and the bottom is connected with ash bucket 6.
Unloading valve 7 is a sub-assembly, and the upper end is connected with ash bucket 6.
Mixed flue gas air outlet 3 is located at set tube top, so after low-temperature flue gas was entered by set tube one side along low-temperature flue gas air inlet 2, tangentially direction was gone down helical trajectory, flows through flue gas pressure-stabilizing section 4, then from bottom to top in the 5 buffering diffusions of flue gas current stabilization manifold section; High-temperature flue gas is tangentially gone down helical trajectory after being entered by set tube opposite side along high-temperature flue gas air inlet 1, flows through flue gas pressure-stabilizing section 4, then from bottom to top in the 5 buffering diffusions of flue gas current stabilization manifold section; High-temperature flue gas and low-temperature flue gas are taken away through top mixed flue gas air outlet 3 after flue gas current stabilization manifold section 5 is fully mixed, and enter deduster; Because when flue gas mixed in the diffusion of flue gas current stabilization manifold section 5 buffering, velocity of flue gas reduced, its time of staying is long, so big dust particle can automatic sedimentation, falls in the ash bucket 6, and dust is discharged and transported outward by the unloading valve 7 of ash bucket below.
Flue gas current stabilization set tube is applicable to that mainly the high low-temperature flue gas of metallurgy industry, machine casting industry and other industry stove mixes.Abundant mixed flue gas prevents that flue gas overtemperature and backflow from pouring in down a chimney, and can substitute cyclone dust collectors sedimentation bulky grain again, energy efficient, thus guarantee the normal stable operation of whole dust-removal system.
Claims (7)
1, the set tube of flue gas current stabilization, it is characterized in that being provided with a urceolus, on outer cylinder body, be provided with the high-temperature flue gas air inlet, low-temperature flue gas air inlet, mixed flue gas air outlet, flue gas pressure-stabilizing section, flue gas current stabilization manifold section, ash bucket, unloading valve, ash bucket, wherein unloading valve is in the bottom of urceolus, the high-temperature flue gas air inlet is tangentially inserted by set tube one side pressure-stabilizing section, the low-temperature flue gas air inlet tangentially inserts from set tube opposite side pressure-stabilizing section, above-mentioned two tangential directions are parallel, and the air intake direction is opposite.
2, the set tube of flue gas current stabilization according to claim 1, the height that it is characterized in that the high-temperature flue gas air inlet is a little less than low-temperature flue gas air inlet or identical.
3, the set tube of flue gas current stabilization according to claim 1 and 2 is characterized in that the high-temperature flue gas air inlet is a rectangular configuration, and the sectional dimension of its latus rectum is connected with flue gas pressure-stabilizing section (4) at opposite side less than low temperature air inlet bore.
4, the set tube of flue gas current stabilization according to claim 1 is characterized in that mixed flue gas air outlet (3) can do circular or rectangular configuration according to actual needs, is connected with flue gas current stabilization manifold section (5) at the top.
5, the set tube of flue gas current stabilization according to claim 1 and 2 is characterized in that flue gas pressure-stabilizing section (4) is generally a section of urceolus, walks spiral trajectory from tangential direction, is connected with flue gas current stabilization manifold section (5).
6, the set tube of flue gas current stabilization according to claim 1, it is characterized in that flue gas current stabilization manifold section (5) columnar structured in the outer cylinder body, the side is connected with flue gas pressure-stabilizing section (4), and the top is connected with mixed flue gas air outlet (3), and the bottom is connected with ash bucket (6).
7, according to the set tube of claim 1 or 6 described flue gas current stabilizations, it is characterized in that ash bucket (6) is a conical structure, top is connected with flue gas current stabilization manifold section (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202159718U CN201300019Y (en) | 2008-11-18 | 2008-11-18 | Smoke steady flow collection drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202159718U CN201300019Y (en) | 2008-11-18 | 2008-11-18 | Smoke steady flow collection drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201300019Y true CN201300019Y (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202159718U Expired - Fee Related CN201300019Y (en) | 2008-11-18 | 2008-11-18 | Smoke steady flow collection drum |
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| CN (1) | CN201300019Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240014A (en) * | 2013-05-30 | 2013-08-14 | 中冶华天南京工程技术有限公司 | Flue gas mixing device |
| CN103374653A (en) * | 2012-04-28 | 2013-10-30 | 宝山钢铁股份有限公司 | Low-energy-consumption and low-emission sintering method |
| CN104525009A (en) * | 2014-12-11 | 2015-04-22 | 北京京诚泽宇能源环保工程技术有限公司 | Flue gas mixed flow tower |
-
2008
- 2008-11-18 CN CNU2008202159718U patent/CN201300019Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374653A (en) * | 2012-04-28 | 2013-10-30 | 宝山钢铁股份有限公司 | Low-energy-consumption and low-emission sintering method |
| CN103240014A (en) * | 2013-05-30 | 2013-08-14 | 中冶华天南京工程技术有限公司 | Flue gas mixing device |
| CN103240014B (en) * | 2013-05-30 | 2015-09-02 | 中冶华天南京工程技术有限公司 | Flue gas mixing arrangement |
| CN104525009A (en) * | 2014-12-11 | 2015-04-22 | 北京京诚泽宇能源环保工程技术有限公司 | Flue gas mixed flow tower |
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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: 20090902 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |