CN202376875U - Coal-fired flue gas foam dust collection device - Google Patents
Coal-fired flue gas foam dust collection device Download PDFInfo
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- CN202376875U CN202376875U CN2011205341803U CN201120534180U CN202376875U CN 202376875 U CN202376875 U CN 202376875U CN 2011205341803 U CN2011205341803 U CN 2011205341803U CN 201120534180 U CN201120534180 U CN 201120534180U CN 202376875 U CN202376875 U CN 202376875U
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- dust collector
- collector box
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Abstract
The utility model discloses a coal-fired flue gas foam dust collection device which mainly consists of a dust collector box body, a water feeding tank, an overflow ring and a gas distributor component, wherein a water inlet is arranged at the upper end of the dust collector box body; the water feeding tank is arranged on the outer wall of the dust collector box body below the water inlet; the overflow ring is arranged on the inner wall of the dust collector box body below the water inlet; an exhaust port is arranged at the top of the dust collector box body; a slag discharge valve is arranged at the bottom of the dust collector box body; a gas inlet is arranged at the middle part of the dust collector box body; an overflow hole is arranged at the lower end of the dust collector box body; and a gas distributor is arranged at the center in the dust collector box body and connected with the gas inlet to obtain a horn-shaped elbow with a large gas distributor and a small gas inlet. A gas outlet of the gas distributor is 5-10cm above the overflow hole of the dust collector box body. The device is simple in structure and easy to operate and has a good dust collection effect, small flow resistance of the glue gas in water and stable flow rate of the flue gas; and the overflow ring can form a water wall on the inner surface of the box body so as to absorb dust particles and corrosive oxides in the flue gas to protect the inner wall of the dust collector box body. Compared with a flue gas dust collector which has an overflow ring and reaches the bottom of water, the dust collection efficiency is improved by 13%.
Description
Technical field:
The utility model relates to a kind of chemical industry equipment, relates in particular to a kind of coal-fired flue-gas foam dust arrester.
Technical background:
Hot-blast stove is the visual plant in the nano-calcium carbonate production process, and the high hot coal-fired flue-gas that is produced by hot-blast stove obtains the higher cleaned air of temperature through heat exchanger and pure air and is used for the nano-calcium carbonate drying.High hot coal-fired flue-gas becomes the lower flue gas of temperature after heat exchange, wherein contain a large amount of grits and coal fugitive constituent, can cause serious environmental pollution if directly be discharged in the air.Therefore must adopt an effective measure coal-fired flue-gas is made dust removal process.The foam dedusting is to be used for coal-fired flue-gas is done the common apparatus of dust removal process.But when making dust removal process, the coal-fired flue-gas that common foam deduster produces can have following problem usually in being used for to the nano-calcium carbonate production process:
1. efficiency of dust collection is low, still contains a large amount of grits and other pollutants in the discharging flue gas.
2. dust pelletizing system pressure instability causes the heat exchanger can not steady operation, and then influences dry normally the carrying out of nano-calcium carbonate.
3. directly the furnace gas air inlet pipe there is not below upstream face 5～10cm, gas just need overcome certain pressure and could circulate.If the enough big coal-fired flue-gas of pressure can reach gas washing dedusting purpose by the smooth and easy outflow water surface, but when gas pressure hour, furnace gas just can not smooth and easyly overflow, thereby causes nano-calcium carbonate drying control hysteresis.
4. sulfur-containing compound can not in time be discharged deduster in the coal-fired flue-gas, causes the heavy corrosion to cleaner.
Summary of the invention:
The purpose that this practicality is new:, design a kind of modified form coal-fired flue-gas foam dust arrester that can effectively improve efficiency of dust collection and strick precaution equipment corrosion for overcoming the existing deficiency of foam deduster in coal-fired flue-gas dust-removing.
The utility model is achieved in that
A kind of coal-fired flue-gas foam dust arrester, its structure mainly is made up of deduster casing, feed trough, overflow circle and gas distributor parts; Deduster casing upper end is provided with water inlet, on the deduster cabinet exterior feed trough is being set below the water inlet, and the overflow circle is set on deduster cabinet wall below the water inlet, and deduster casing top is provided with exhaust outlet, and the deduster bottom half is provided with residual cake valve; Deduster casing middle part is provided with air inlet, and deduster casing lower end is provided with spout hole; The interior centre of deduster casing is provided with gas distributor and is connected with air inlet.
The gas vent of described gas distributor is positioned at the 5-10cm place, spout hole top of deduster casing.
Described gas distributor is connected with air inlet, and it is big to be set to gas distributor, the horn-like bend pipe that air inlet is young.
This coal-fired flue-gas foam dust arrester operation principle:
Adding entry to spout hole at feed trough and deduster casing overflows; Feed flue gas from air inlet again; The flue gas of certain flow blows to the water surface concordant with spout hole through gas distributor and forms pollutants such as foam absorption grit and sulfur-containing compound; Grit in the flue gas also can get in the water by buffering and gravity effect smoothly, gives off Purge gas from exhaust outlet then, arrives the dedusting purpose.Water in the feed trough slowly flow to overflow circle upper edge, continues slowly to flow down and be paved with whole deduster interior along overflow circle inwall, forms larger area water wall.Because grit and corrosive oxide effect in the absorption flue gas played in the existence of water wall, protected cabinet wall again, makes its protect it from corrosion.
The utlity model has following outstanding feature:
(1) since the utility model set the flue gas distributor outlet apart from water surface 5-10cm; The flow resistance that flue gas gets in the water reduces; Flue gas flow is stable; Played good regulating action for the flow-control of furnace gas, prevented that gas flow modulation from lagging behind to the negative effect of nano-calcium carbonate dry run.
(2) the set horn-like bend pipe of the utility model makes the distribution of gas area increase, and when gas during from even discharges of gas distributor, can fully contact dedusting with water with helping bigger efficient.
(3) deduster casing top installs the overflow circle additional and can form the water wall in interior, absorbs in the flue gas effect of grit and corrosive oxidation thing and has protected the deduster cabinet wall again thereby play, and makes its protect it from corrosion.
(4) the utility model is produced in the coal-fired flue-gas dust-removing process at applying nano calcium carbonate, has advantages of simplicity and high efficiency and treats a little, and what both helped producing normally carries out, and also effectively reduces disposal of pollutants, has reached the purpose of protecting environment to greatest extent.
(5) the utility model is simple in structure, processing ease, and good dedusting effect has favorable economic benefit, social benefit and environmental benefit.
Description of drawings
The cross-sectional schematic of Fig. 1 the utility model.
Identify among the figure: 1-deduster casing; 2-exhaust outlet 2; The 3-feed trough; 4-overflow circle; The 5-water inlet; The 6-air inlet; The 7-gas distributor; 8 spout holes; The 9-residual cake valve.
The specific embodiment:
Guangxi company adopts this coal-fired flue-gas foam dust arrester, tries out in the production line of producing 40000 tons of nano-calcium carbonates per year, per hour handles coal-fired flue-gas 20000m
3Deduster casing 1 upper end of coal-fired flue-gas foam dust arrester is provided with water inlet 5; On deduster casing 1 outer wall feed trough 3 is being set below the water inlet 5; On deduster casing 1 inwall overflow circle 4 is being set below the water inlet 5; Deduster casing 1 top is provided with exhaust outlet 2, and deduster casing 1 bottom is provided with residual cake valve 9; The middle part of deduster casing 1 is provided with air inlet 6, and deduster casing 1 lower end is provided with spout hole 8; Deduster casing 1 interior centre is provided with gas distributor 7 and is connected with air inlet 6, and it is big to be set to gas distributor 7, the horn-like bend pipe of air inlet 6.Gas distributor 7 cloth devices 7 also are connected with air inlet 6, and it is big to be set to gas distributor 7, the horn-like bend pipe of air inlet 6.The gas vent of gas distributor 7 is apart from the spout hole 8 low 5-10cm of deduster casing 1.
In use; Feed trough 3 adds entry to spout hole 8 with deduster casing 1 and overflows, and feeds flue gas from air inlet 6 again, and flue gas gets into dust-removal and desulfurizing in the water through gas distributor 7; Grit in the flue gas can get in the water by buffering and gravity effect smoothly; Sulfide is water-soluble, rises then to give off Purge gas from exhaust outlet 2, arrives the dedusting purpose.Water in the feed trough 3 slowly flow to overflow circle upper edge, continues slowly to flow down and be paved with whole deduster casing 1 inner surface along overflow circle inwall, forms larger area water wall.Because grit and corrosive oxide effect in the absorption flue gas played in the existence of water wall, protected deduster casing 1 inwall again, makes its protect it from corrosion.
This device can be removed 87% above grit and other pollutants in the flue gas.Compare with the smoke duster below not having overflow circle 4 and blast pipe not having upstream face, efficiency of dust collection has improved 13%, has avoided the problem of often changing because of deduster casing 1 inner wall corrosion basically.
Claims (3)
1. coal-fired flue-gas foam dust arrester, it is characterized in that: structure mainly is made up of deduster casing (1), feed trough (3), overflow circle (4) and gas distributor (7) parts; Deduster casing (1) upper end is provided with water inlet (5); On the below of water inlet (5) deduster casing (1) outer wall, feed trough (3) is set; On the below of water inlet (5) deduster casing (1) inwall, overflow circle (4) is set; Deduster casing (1) top is provided with exhaust outlet (2), and deduster casing (1) bottom is provided with residual cake valve (9); Deduster casing (1) middle part is provided with air inlet (6), and deduster casing (1) lower end is provided with spout hole (8); The interior centre of deduster casing (1) is provided with gas distributor (7) and is connected with air inlet (6).
2. coal-fired flue-gas foam dust arrester according to claim 1 is characterized in that: the gas vent of described gas distributor (7) is positioned at the 5-10cm place, spout hole (8) top of deduster casing (1).
3. coal-fired flue-gas foam dust arrester according to claim 1 is characterized in that: described gas distributor (7) is connected with air inlet (6), and it is big to be set to gas distributor (7), the horn-like bend pipe that air inlet (6) is little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205341803U CN202376875U (en) | 2011-12-20 | 2011-12-20 | Coal-fired flue gas foam dust collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205341803U CN202376875U (en) | 2011-12-20 | 2011-12-20 | Coal-fired flue gas foam dust collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202376875U true CN202376875U (en) | 2012-08-15 |
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ID=46625397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205341803U Expired - Fee Related CN202376875U (en) | 2011-12-20 | 2011-12-20 | Coal-fired flue gas foam dust collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202376875U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239960A (en) * | 2013-05-30 | 2013-08-14 | 南京德邦金属装备工程股份有限公司 | Single pipe type in-liquid gas phase washing distributor |
| CN106397104A (en) * | 2016-10-27 | 2017-02-15 | 广东华特气体股份有限公司 | Carbon tetrafluoride purification system with nitrogen recycling function |
| CN106397107A (en) * | 2016-10-27 | 2017-02-15 | 广东华特气体股份有限公司 | Purification system for carbon tetrafluoride |
-
2011
- 2011-12-20 CN CN2011205341803U patent/CN202376875U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239960A (en) * | 2013-05-30 | 2013-08-14 | 南京德邦金属装备工程股份有限公司 | Single pipe type in-liquid gas phase washing distributor |
| CN106397104A (en) * | 2016-10-27 | 2017-02-15 | 广东华特气体股份有限公司 | Carbon tetrafluoride purification system with nitrogen recycling function |
| CN106397107A (en) * | 2016-10-27 | 2017-02-15 | 广东华特气体股份有限公司 | Purification system for carbon tetrafluoride |
| CN106397107B (en) * | 2016-10-27 | 2019-05-03 | 广东华特气体股份有限公司 | A kind of purification system of carbon tetrafluoride |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangxi Tianyang Xintai Chemical Co., Ltd. Assignor: Guangxi Huana New Materials Science & Technology Co., Ltd. Contract record no.: 2014450000047 Denomination of utility model: Coal-fired flue gas foam dust collection device Granted publication date: 20120815 License type: Exclusive License Record date: 20140711 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Coal-fired flue gas foam dust collection device Effective date of registration: 20150826 Granted publication date: 20120815 Pledgee: Bank of Communications Ltd the Guangxi Zhuang Autonomous Region branch Pledgor: Guangxi Huana New Materials Science & Technology Co., Ltd. Registration number: 2015990000720 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190322 Granted publication date: 20120815 Pledgee: Bank of Communications Ltd the Guangxi Zhuang Autonomous Region branch Pledgor: Guangxi Huana New Materials Science & Technology Co., Ltd. Registration number: 2015990000720 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20191220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |