CN1589951A - Ammonium chloride dry dusting method - Google Patents
Ammonium chloride dry dusting method Download PDFInfo
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- CN1589951A CN1589951A CN 03144193 CN03144193A CN1589951A CN 1589951 A CN1589951 A CN 1589951A CN 03144193 CN03144193 CN 03144193 CN 03144193 A CN03144193 A CN 03144193A CN 1589951 A CN1589951 A CN 1589951A
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- dust
- ammonium chloride
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- gas
- tail gas
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Abstract
A dry dusting method for production of ammonium chloride includes drying the tail gas by drier, cyclone separation of big particles by cyclone separator for recovering them as finished product, and filtering by cloth-bag duster to remove the dust from tail gas.
Description
Technical field
The present invention relates to a kind of method for dust removal, the invention particularly relates to a kind of ammonium chloride dry dust collection method.
Background technology
Traditional dry method for dust removal, the one, adopt the emptying after cyclonic separator separates of dried tail gas, the 2nd, adopt Wen's washing methods.The tail gas that adopts above two kinds of methods to handle can't reach the emission standard of national requirements, simultaneously because the easy moisture absorption caking of ammonium chloride, its aqueous solution is serious to metallic corrosion, and facility and environment on every side caused great harm, washing back solution-treated difficulty, expensive big.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of ammonium chloride dry dust collection method is provided, adopt method of the present invention, when guaranteeing the tail gas qualified discharge, dust reclaimed and become finished product.
The objective of the invention is to realize by following proposal.
The inventive method is in the Production of Ammonium Chloride process, the tail gas of discharging after the drying stove drying enters external cyclone water-separator, wherein oarse-grained dust returns finished bin, gas after the separation enters sack cleaner and filters, gas after the filtration enters atmosphere through induced draft fan, and the dust in the fly-ash separator enters collecting bin through blowback system.
Compared with the prior art the inventive method had not only guaranteed the tail gas qualified discharge but also dust had been reclaimed to become finished product, improved the output of product, reduced consumption, can not produce corrosion owing to adopt dry method dust not produce the aqueous solution simultaneously, prolonged the work-ing life of equipment peripheral facilities; In the ammonium chloride drying process, when the humidity of dusty gas reaches 85%, still can work in the present invention, not have the bonding phenomenon.
Description of drawings
Accompanying drawing is the process flow sheet of the inventive method.
Embodiment
In the Production of Ammonium Chloride process, the tail gas of discharging after the drying stove drying enters external cyclone water-separator, wherein oarse-grained dust is under action of centrifugal force, isolated dust is discharged cyclonic separator and is returned finished bin, gas after the separation enters sack cleaner and filters, gas after the filtration enters atmosphere through induced draft fan, this chamber quits work when the pressure reduction in the sack cleaner increases to set(ting)value, blowback system enters working order, the pressurized air of blowback system is power, pressurized air pours in rapidly in the sack cleaner, and cloth bag produces shake, and the powder on the filter bag outside is shaked off, dust falls in the ash bucket, after blowback system quit work, filter chamber entered working order again, and so circulation reaches the dedusting purpose.Described sack cleaner is made up of a plurality of chambers.
Embodiment 1
To producing 10000 tons of smart ammonium dehumidification systems per year, install one group of efficient cyclone separator additional, 1.5 meters of diameters, one of 4 Room sack cleaner, filtration area F=200m
2, the tail gas of discharging after the drying stove drying enters cyclonic separator, and wherein oarse-grained dust returns finished bin, and the gas after the separation enters sack cleaner and filters, and the gas after the filtration enters atmosphere through induced draft fan, and the air inducing amount of induced draft fan is 13500Ndm
3Dust in the/h, fly-ash separator enters collecting bin through blowback system, and the compressed air pressure of blowback system is 0.6Mpa, and the pressurized air consumption is 1.4m
3/ min, the dedusting blowback system all adopts the PCC robot control system(RCS).Dust inlet concentration is 4047mg/Ndm
3, the dust exit concentration is 2.9mg/Ndm
3, per hour reclaim finished product 54.59kg, it is ventilative good to move after 1 year cloth bag, does not have the bonding phenomenon, and exhaust emissions reaches discharging standards.
Embodiment 2
To producing 100000 tons of smart ammonium dehumidification systems per year, install one group of efficient cyclone separator additional, 1.5 meters of diameters, one of 5 Room sack cleaner, filtration area F=600m
2, filter bag adopts the preventing scaring material, and the tail gas of discharging after the drying stove drying enters cyclonic separator, wherein oarse-grained dust returns finished bin, gas after the separation enters sack cleaner and filters, and the gas after the filtration enters atmosphere through induced draft fan, and the air inducing amount of induced draft fan is 41387Ndm
3Dust in the/h, fly-ash separator enters collecting bin through blowback system, and the compressed air pressure of blowback system is 0.6Mpa, and the pressurized air consumption is 2.2m
3/ min, the dedusting blowback system all adopts the PCC robot control system(RCS).Dust inlet concentration is 22740mg/Ndm
3, the dust exit concentration is 22.3mg/Ndm
3, per hour reclaim finished product 867kg, it is ventilative good to move after 1 year cloth bag, does not have the bonding phenomenon, and exhaust emissions reaches discharging standards.
Embodiment 3
To the dedusting of ammonium chloride granulating system, installing two of efficient cyclone separators additional is one group, 1.5 meters of diameters, one of 8 Room sack cleaner, filtration area F=500m
2, filter bag adopts the preventing scaring material, and the tail gas of discharging after the drying stove drying enters cyclonic separator, wherein oarse-grained dust returns finished bin, gas after the separation enters sack cleaner and filters, and the gas after the filtration enters atmosphere through induced draft fan, and the air inducing amount of induced draft fan is 25000Ndm
3Dust in the/h, fly-ash separator enters collecting bin through blowback system, and the compressed air pressure of blowback system is 0.6Mpa, the pressurized air consumption 2.4m of blowback system
3/ min, the dedusting blowback system all adopts the PCC robot control system(RCS).Dust inlet concentration is 9800mg/Ndm
3, the dust exit concentration is 60mg/Ndm
3, per hour reclaim finished product 194.8kg, it is ventilative good to move after 1 year cloth bag, does not have the bonding phenomenon, and exhaust emissions reaches discharging standards.
Claims (1)
1. ammonium chloride dry dust collection method, it is characterized in that it may further comprise the steps: in the Production of Ammonium Chloride process, the tail gas of discharging after the drying stove drying enters external cyclone water-separator, wherein oarse-grained dust returns finished bin, and the gas after the separation enters sack cleaner and filters; Gas after the filtration enters atmosphere through induced draft fan, and the dust in the fly-ash separator enters collecting bin through blowback system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144193 CN1589951A (en) | 2003-08-27 | 2003-08-27 | Ammonium chloride dry dusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144193 CN1589951A (en) | 2003-08-27 | 2003-08-27 | Ammonium chloride dry dusting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1589951A true CN1589951A (en) | 2005-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03144193 Pending CN1589951A (en) | 2003-08-27 | 2003-08-27 | Ammonium chloride dry dusting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1589951A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487066C (en) * | 2006-09-20 | 2009-05-13 | 山东天力干燥设备有限公司 | Drying coating technology for sodium percarbonate |
| CN102172458A (en) * | 2010-12-31 | 2011-09-07 | 东莞市中镓半导体科技有限公司 | Method and equipment for processing tail gas containing ammonium chloride |
| CN110772921A (en) * | 2019-12-02 | 2020-02-11 | 天津大沽化工股份有限公司 | Purification device and purification method for particulate matters in PVC (polyvinyl chloride) drying tail air |
| CN110893284A (en) * | 2019-12-04 | 2020-03-20 | 荣海生物科技有限公司 | Method for recovering soybean peptide powder fine powder |
| CN112344354A (en) * | 2020-09-15 | 2021-02-09 | 盐城仁创砂业科技有限公司 | Tail gas treatment process for mixed precoated sand |
| CN113488219A (en) * | 2021-04-27 | 2021-10-08 | 中国核电工程有限公司 | Radioactive metal smelting tail gas treatment device, metal smelting system and method |
-
2003
- 2003-08-27 CN CN 03144193 patent/CN1589951A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487066C (en) * | 2006-09-20 | 2009-05-13 | 山东天力干燥设备有限公司 | Drying coating technology for sodium percarbonate |
| CN102172458A (en) * | 2010-12-31 | 2011-09-07 | 东莞市中镓半导体科技有限公司 | Method and equipment for processing tail gas containing ammonium chloride |
| CN102172458B (en) * | 2010-12-31 | 2013-07-24 | 东莞市中镓半导体科技有限公司 | Method and equipment for processing tail gas containing ammonium chloride |
| CN110772921A (en) * | 2019-12-02 | 2020-02-11 | 天津大沽化工股份有限公司 | Purification device and purification method for particulate matters in PVC (polyvinyl chloride) drying tail air |
| CN110893284A (en) * | 2019-12-04 | 2020-03-20 | 荣海生物科技有限公司 | Method for recovering soybean peptide powder fine powder |
| CN112344354A (en) * | 2020-09-15 | 2021-02-09 | 盐城仁创砂业科技有限公司 | Tail gas treatment process for mixed precoated sand |
| CN113488219A (en) * | 2021-04-27 | 2021-10-08 | 中国核电工程有限公司 | Radioactive metal smelting tail gas treatment device, metal smelting system and method |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |