CN105854480A - Composite dedusting method for high-concentration, high-temperature, high-humidity and large-particle kiln exhaust - Google Patents
Composite dedusting method for high-concentration, high-temperature, high-humidity and large-particle kiln exhaust Download PDFInfo
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- CN105854480A CN105854480A CN201610267366.4A CN201610267366A CN105854480A CN 105854480 A CN105854480 A CN 105854480A CN 201610267366 A CN201610267366 A CN 201610267366A CN 105854480 A CN105854480 A CN 105854480A
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- Prior art keywords
- dust
- tail gas
- kiln tail
- expansion chamber
- bulky grain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention belongs to the technical field of environment-friendly metallurgical equipment, and relates to a composite dedusting method for high-concentration, high-temperature, high-humidity and large-particle kiln exhaust. The method comprises the following steps: the exhaust is introduced into shutters, and after the kiln exhaust is filtered by the shutters, large-particle dust collides with and is collected by blades of the shutters, and falls to a dust hopper below a settling chamber; steam in flue gas settles in the settling chamber, and large-particle dust falls to the dust hopper below the settling chamber due to gravity; the kiln exhaust settles in the settling chamber, and then enters a bag dust remover through an opening on the top of a separator for dust removal, and dust falls to a dust hopper below the bag dust remover due to gravity; the kiln exhaust enters a filter bag chamber of the bag dust remover, is filtered by filter bags and then is discharged to the air, and steam or moisture in the flue gas partially settles in the settling chamber to effectively protect the cloth bags. The method can be widely applied to the field of metallurgical kilns.
Description
Technical field
The invention belongs to technical field of environment protection equipment, be specifically related to a kind of high concentration, high temperature, high humidity and bulky grain kiln tail gas combined type dedusting method.
Background technology
Existing dust collection method, predominantly organic tool formula, atomizing etc.；Mechanical collector, being divided into expansion chamber, inertial dust separator and cyclone dust extractor, mechanical collector efficiency is low, resistance is low, save the energy, little at wind-force, the occasion that dust removal requirement is the highest can be used alone, and weak point is to require that strict occasion does not reaches requirement.Need invention a kind of stable, adaptable, the large-minded cleaning equipment becoming many industrial and mining establishment removing dust project with features such as adapting to different operating modes can be processed per hour.
Summary of the invention
For overcoming the deficiencies in the prior art, louver separator is used as the pre-dedusting of senior cleaner unit, invention high concentration, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method.
High concentration, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, the method that described kiln tail gas composite dust-removing method uses includes shutter, expansion chamber, sack cleaner, dividing plate, ash bucket, shutter is installed on expansion chamber import department, expansion chamber is integrated with sack cleaner, centre dividing plate separates, ash bucket, with vent openings, is installed in dividing plate top below expansion chamber, install ash bucket below sack cleaner;The step of kiln tail gas composite dust-removing method is as follows:
(a), by high concentration, high temperature, high humidity and bulky grain kiln tail gas introduce shutter；Kiln tail gas in louver filter, flue gas with Mars big dust particle by blade of louver window collision trapping after drop to ash bucket below expansion chamber；
B (), high concentration, high temperature, high humidity and bulky grain kiln tail gas enter expansion chamber after the filter blade of shutter；From bottom to top, the steam in flue gas is at sedimentation indoor settlement, and big dust particle drops ash bucket below expansion chamber because of gravity for kiln tail gas；
C (), high concentration, high temperature, high humidity kiln tail gas opening above dividing plate after expansion chamber settles enters sack cleaner dedusting, dust drops to ash bucket below sack cleaner because of gravity；
(d), through sack cleaner dedusting kiln tail gas enter bag-type duster filtering bag room, enter air after sock filtration.
Described high concentration, high temperature, high humidity and bulky grain kiln exhaust temperature scope are 50 DEG C-300 DEG C.
Described bulky grain kiln tail gas refers to that exhaust particulate degree is 5 20000 microns.
The moisture content volume of described high humidity kiln tail gas high humidity accounts for less than the 40% of flue gas cumulative volume.
Described dust removal step (a) to (d) dust collection method is a dust removing units dust collection method step of kiln tail gas composite dust-removing method.
Described dust removing units, parallel connection extends to 2～40.
It is high concentration, high temperature, high-humidity gas fume entrance high concentration, high temperature, high humidity and bulky grain kiln tail gas hybrid device with distinguishing feature in place of the technological progress of the present invention, after using dust collection method of the present invention, in flue gas, the big dust particle with Mars drops expansion chamber ash bucket after blade of louver window collision trapping；Entering expansion chamber by the flue gas of shutter, owing to wind speed is greatly reduced, bulky grain settles further, and flue gas slowly enters the baghouse of cleaner unit upwardly through vent, is entered air by after sock filtration.Shutter and expansion chamber all have the fire function that disappears, and can effectively prevent the Mars in Industrial Stoves high-temperature flue gas from burning cloth bag.Meanwhile, the steam in flue gas or moisture also can effectively protect cloth bag in sedimentation indoor section sedimentation.Avoid Industrial Stoves high-temperature flue gas and high concentration, the big dust particle damage to sack cleaner cloth bag, be effectively improved the service life of cloth bag.
Accompanying drawing explanation
Fig. 1
Composite dust-removing device front view.
Fig. 2
Composite dust-removing device A direction view.
Fig. 3
Composite dust-removing device B direction view.
Fig. 4
Composite dust-removing device shutter front view.
Fig. 5
Composite dust-removing device shutter A direction view.
Fig. 6
Composite dust-removing device shutter B direction view.
Fig. 7
Composite dust-removing device shutter C direction view.
Fig. 8
Composite dust-removing device shutter I-I direction view.
Fig. 9
Composite dust-removing device shutter II-II direction view.
Figure 10
Blade of louver window angle schematic diagram.
In figure: shutter 1, expansion chamber 2, sack cleaner 3, dividing plate 4, ash bucket 5, ash bucket 6.
Detailed description of the invention
Embodiment one,
High concentration, high temperature, high humidity kiln are implemented this patent, high concentration, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, described composite dust-removing method includes shutter 1, expansion chamber 2, sack cleaner 3, dividing plate 4, ash bucket 5 and ash bucket 6, shutter 1 is installed on expansion chamber 2 import department, expansion chamber 2 is integrated with sack cleaner 3, centre dividing plate 4 separates, and installs ash bucket 5 below expansion chamber 2, installs ash bucket 6 below sack cleaner.
High concentration, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, the method that described kiln tail gas composite dust-removing method uses includes shutter 1, expansion chamber 2, sack cleaner 3, dividing plate 4, ash bucket 5 and ash bucket 6, shutter 1 is installed on expansion chamber 2 import department, expansion chamber 2 is integrated with sack cleaner 3, centre dividing plate 4 separates, ash bucket 5 is installed below expansion chamber 2, ash bucket 6 is installed below sack cleaner；The step of kiln tail gas composite dust-removing method is as follows:
(a), by high concentration, high temperature, high humidity and bulky grain kiln tail gas introduce shutter 1；Kiln tail gas filters through shutter 1, and in flue gas, the big dust particle with Mars drops to ash bucket 5 below expansion chamber after the collision trapping of shutter 1 blade；
B (), high concentration, high temperature, high humidity and bulky grain kiln tail gas enter expansion chamber 2 after the filter blade of shutter 1；From bottom to top, the steam in flue gas settles in expansion chamber 2 kiln tail gas, and big dust particle drops ash bucket 5 below expansion chamber because of gravity；
C (), high concentration, high temperature, high humidity kiln tail gas opening above dividing plate 4 after expansion chamber 2 settles enters sack cleaner 3 dedusting, dust drops to ash bucket 6 below sack cleaner because of gravity；
(d), through sack cleaner 3 dedusting kiln tail gas enter sack cleaner 3 baghouse, enter air after sock filtration.
Described high concentration, high temperature, high humidity and bulky grain kiln exhaust temperature are at 50 DEG C.
Described bulky grain kiln tail gas refers to that exhaust particulate degree is 5 microns.
The moisture content volume of described high humidity kiln tail gas high humidity accounts for the 20% of flue gas cumulative volume.
Described dust removal step (a) to (d) dust collection method is a dust removing units method step of kiln tail gas composite dust-removing method.
Described dust removing units, parallel connection extends to 2.
After high concentration, high temperature, high-humidity gas fume enter high concentration, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, in flue gas, big dust particle with Mars drops after being collided trapping by shutter 1 expansion chamber ash bucket；Entering expansion chamber 2 by the flue gas of shutter 1, owing to wind speed is greatly reduced, bulky grain settles further, and flue gas slowly enters the baghouse of cleaner unit 3 upwardly through vent, is entered air by after sock filtration.Shutter and expansion chamber all have the fire function that disappears, and can effectively prevent the Mars in Industrial Stoves high-temperature flue gas from burning cloth bag.Meanwhile, the steam in flue gas or moisture also can effectively protect cloth bag in sedimentation indoor section sedimentation.Avoid Industrial Stoves high-temperature flue gas and high concentration, the big dust particle damage to sack cleaner cloth bag, be effectively improved the service life of cloth bag.
Embodiment two,
Described high concentration, high temperature, high humidity and bulky grain kiln exhaust temperature scope are 125 DEG C.
Described bulky grain kiln tail gas refers to that exhaust particulate degree is 10000 microns.
The moisture content volume of described high humidity kiln tail gas high humidity accounts for less than the 30% of flue gas cumulative volume.
Described dust removal step (a) to (d) dust collection method is a dust removing units dust collection method step of kiln tail gas composite dust-removing method.
Described dust removing units, parallel connection extends to 20.
Remaining content is with embodiment one；Repeat no more.
Embodiment three,
Described high concentration, high temperature, high humidity and bulky grain kiln exhaust temperature scope are 300 DEG C.
Described bulky grain kiln tail gas refers to that exhaust particulate degree is 20000 microns.
The moisture content volume of described high humidity kiln tail gas high humidity accounts for less than the 40% of flue gas cumulative volume.
Described dust removal step (a) to (d) dust collection method is a dust removing units dust collection method step of kiln tail gas composite dust-removing method.
Described dust removing units, parallel connection extends to 40.
Remaining content is with embodiment one；Repeat no more.
Claims (6)
1. high concentration, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, it is characterized in that, the device that described kiln tail gas composite dust-removing method uses includes shutter (1), expansion chamber (2), sack cleaner (3), dividing plate (4), ash bucket (5) and ash bucket (6), shutter (1) is installed on expansion chamber (2) import department, expansion chamber (2) is integrated with sack cleaner (3), centre dividing plate (4) separates, dividing plate (4) top is with vent openings, ash bucket (5) is installed in expansion chamber (2) lower section, ash bucket (6) is installed below sack cleaner;The step of kiln tail gas composite dust-removing method is as follows:
(a), by high concentration, high temperature, high humidity and bulky grain kiln tail gas introduce shutter (1)；Kiln tail gas filters through shutter (1), and in flue gas, the big dust particle with Mars drops to ash bucket below expansion chamber (5) after the collision trapping of shutter (1) blade；
B (), high concentration, high temperature, high humidity and bulky grain kiln tail gas are through shutter (1)
Filter blade after enter expansion chamber (2)；From bottom to top, the steam in flue gas settles in expansion chamber (2) kiln tail gas, and big dust particle drops ash bucket (5) below expansion chamber because of gravity；
C (), high concentration, high temperature, high humidity kiln tail gas enter sack cleaner (3) dedusting through the opening of dividing plate (4) top after expansion chamber (2) settles, dust drops to ash bucket below sack cleaner (6) because of gravity；
(d), through sack cleaner (3) dedusting kiln tail gas enter sack cleaner (3) baghouse, enter air after sock filtration.
2. high concentration as claimed in claim 1, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, it is characterised in that described high concentration, high temperature, high humidity and bulky grain kiln exhaust temperature scope are 50 DEG C-300 DEG C.
3. high concentration as claimed in claim 2, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, it is characterised in that described bulky grain kiln tail gas refers to that exhaust particulate degree is 5 20000 microns.
4. high concentration as claimed in claim 1, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, it is characterised in that the moisture content volume of described high humidity kiln tail gas high humidity accounts for less than the 40% of flue gas cumulative volume.
5. high concentration as claimed in claim 1, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, it is characterised in that described dust removal step (a)
It is a dust removing units dust collection method step of kiln tail gas composite dust-removing method to (d) dust collection method.
6. high concentration as claimed in claim 4, high temperature, high humidity and bulky grain kiln tail gas composite dust-removing method, it is characterised in that described dust removing units, parallel connection extends to 2～40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267366.4A CN105854480A (en) | 2016-04-27 | 2016-04-27 | Composite dedusting method for high-concentration, high-temperature, high-humidity and large-particle kiln exhaust |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267366.4A CN105854480A (en) | 2016-04-27 | 2016-04-27 | Composite dedusting method for high-concentration, high-temperature, high-humidity and large-particle kiln exhaust |
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| CN105854480A true CN105854480A (en) | 2016-08-17 |
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| CN201610267366.4A Pending CN105854480A (en) | 2016-04-27 | 2016-04-27 | Composite dedusting method for high-concentration, high-temperature, high-humidity and large-particle kiln exhaust |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754537A (en) * | 2017-11-25 | 2018-03-06 | 韩梅 | Bag-type dust environmental protection equipment for industrial gasses |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156375U (en) * | 1977-05-12 | 1977-11-28 | ||
| CN203484012U (en) * | 2013-09-20 | 2014-03-19 | 营口创世纪环保科技有限公司 | Foam dust collector |
| CN203540269U (en) * | 2013-11-07 | 2014-04-16 | 中冶东方工程技术有限公司 | Composite dust remover |
| CN104083974A (en) * | 2014-06-19 | 2014-10-08 | 柏司得环保科技（上海）有限公司 | Filter core type deduster and control method thereof |
| CN203990141U (en) * | 2014-07-11 | 2014-12-10 | 三一汽车制造有限公司 | A kind of sack cleaner |
-
2016
- 2016-04-27 CN CN201610267366.4A patent/CN105854480A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156375U (en) * | 1977-05-12 | 1977-11-28 | ||
| CN203484012U (en) * | 2013-09-20 | 2014-03-19 | 营口创世纪环保科技有限公司 | Foam dust collector |
| CN203540269U (en) * | 2013-11-07 | 2014-04-16 | 中冶东方工程技术有限公司 | Composite dust remover |
| CN104083974A (en) * | 2014-06-19 | 2014-10-08 | 柏司得环保科技（上海）有限公司 | Filter core type deduster and control method thereof |
| CN203990141U (en) * | 2014-07-11 | 2014-12-10 | 三一汽车制造有限公司 | A kind of sack cleaner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107754537A (en) * | 2017-11-25 | 2018-03-06 | 韩梅 | Bag-type dust environmental protection equipment for industrial gasses |
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Application publication date: 20160817 |