CN101664616A - Alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities - Google Patents
Alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities Download PDFInfo
- Publication number
- CN101664616A CN101664616A CN200910164344A CN200910164344A CN101664616A CN 101664616 A CN101664616 A CN 101664616A CN 200910164344 A CN200910164344 A CN 200910164344A CN 200910164344 A CN200910164344 A CN 200910164344A CN 101664616 A CN101664616 A CN 101664616A
- Authority
- CN
- China
- Prior art keywords
- filter element
- alkali recovery
- pulse
- black liquor
- disposal ability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to an alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities, mainly comprising a plurality of pulse spay-blow bag type dedusting units and controllers for controlling the plurality of pulse spay-blow bag type dedusting units and a casing. The pulse spray-blow bag type dedusting units are provided with heaters andare composed of filtering units and ash discharge units; the top end of each filtering unit is provided with a pulse spray-blow system and a lift valve; the filtering units are arranged in the casing;the casing is installed with a wind distributor channel formed by two wind distributor slant boards; and filtering bags are arranged at the two sides of the casing. The invention can be assembled atwill according to specific conditions of processing flue gas with convenient and flexible use and higher dedusting efficiency.
Description
Technical field
The present invention relates to a kind of purification dust removal system that is used for the environmental protection equipment technical field, a kind of specifically alkali recovery furnace impulse blowing purification dust removal system that is specifically designed to the multiple black liquor disposal ability of having of paper industry.
Background technology
At present, the outlet flue dust of black liquid alkali recovery furnace adopts cottrell that it is handled all, but the efficiency of dust collection of cottrell is limited, can't reach the existing discharge standard of country at all.Thereby a lot of enterprises all cause facing the stopping production edge owing to the discharging that exceeds standard, and even more serious is that smog emission not up to standard causes great destruction for human ecological environment, so the research and development new high-tech product is very urgent.
Summary of the invention
Technical problem to be solved by this invention provides a kind of alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability, it as required the concrete condition of smoke treatment form different rectangle battle arrays by several pulse blowing bag type dust removing units arbitrarily, efficiency of dust collection height not only, and be applicable to the clarifying smoke of the large-scale alkali recovery furnace of plurality of specifications of various process conditions, site condition and service condition.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability, mainly by several pulse blowing bag type dust removing units, and the controller of controlling these several pulse blowing bag type dust removing units is formed, owing to need will guarantee the flue gas of dedusting to have certain temperature, be higher than 130 ℃, this moment, the moisture in the flue gas just can dewfall, when ambient temperature reduces, especially in the winter time, particularly at extremely frigid zones, this dust pelletizing system must keep relevant temperature, so be provided with heater in described pulse blowing bag type dust removing units.
Further, described heater comprises steam heater, electric heater unit and built-in heating bypass duct, described steam heater is positioned at filter element and ash discharge unit connecting portion, described electric heater unit is positioned at the ash bucket middle part, and described built-in heating bypass duct is positioned at filter element cloth wind passage.In order to prevent dewfall, when temperature drops to below 130 ℃, just must start heater.At first start steam heater,, restart electric heater unit, make flue-gas temperature remain on 130-150 ℃ if this moment, temperature was still lower.When the dust pelletizing system maintenance finished the blow-on igniting, temperature surpassed normal value in the stove, in order to guarantee the safe operation of dust pelletizing system, start built-in heating bypass duct this moment, without filter bag, guarantee filter bag safety, also can give the dust pelletizing system heating that is in low-temperature condition simultaneously.
In order better to realize the present invention, described pulse blowing bag type dust removing units is divided into filter element and ash discharge unit, described filter element is column structure, and described ash discharge unit is the back taper structure, and top, described ash discharge unit is connected with the filter element bottom.
Further, be provided with the skeleton of some filter bags and some support filter bags in described filter element, described filter bag is suspended in the filter element by the skeleton that supports filter bag, and the quantity of the filter bag amount and the concentration of smoke treatment is as required determined.
Described ash discharge unit comprises ash bucket and ash exhauster, and described ash exhauster is positioned at the ash discharge unit bottom, and described ash bucket top links to each other with the filter element bottom, and the bottom links to each other with ash exhauster.
Be provided with pulse jet system and lift valve on described filter element top, described pulse jet system and lift valve link to each other with some filter bags top respectively.
This system is the rectangle battle array that is made of described several pulse blowing bag type dust removing units, can be arranged to single or double, this system also comprises housing, described filter element is positioned within the housing, be provided with air inlet at described housing one end, the other end relative with it is provided with air outlet, is respectively equipped with pneumatic power lifting valve on described air inlet and air outlet.
For flue gas can be evenly distributed within each filter bag, in described housing, be provided with the cloth wind passage that constitutes by two cloth wind swash plates, described built-in heating bypass duct is positioned at filter element cloth wind passage, and described cloth wind passage two ends connect air inlet and air outlet respectively.
Take a series of heating measure, actual is to prevent smoke condensation, it also is the condition that prevents to form caustic corrosion, be the important measures that prevent caustic corrosion, brushing respectively on the skeleton of described support filter bag, built-in heating bypass duct, the housing simultaneously has corrosion-inhibiting coating, can prevent further that each parts is by caustic corrosion in this system.
To sum up, the invention has the beneficial effects as follows:
(1) filter bag that is provided with plurality of specifications according to the size and the concentration of smoke treatment amount, multiple pulse jetting deashing device, airflow uniform distribution device, ash bucket heater, unloading valve, pulse jet controller, plurality of specifications deduction valve, plurality of specifications pulse valve etc., thus meet the different needs.
(2) can form different matrix forms by several pulse blowing bag type dust removing units, further satisfy the flue gas of handling different amounts.
(3) adopt the numerical control form, utilize controller to control the work of each parts, comprise air inlet, give vent to anger, filter each functions such as gas, ash discharge, heating, convenient to use.
Description of drawings
Fig. 1 blows the structural representation of pocket type ash discharge unit for the present invention resprays.
Fig. 2 is an overall structure schematic diagram of the present invention.
Mark and corresponding parts title in the accompanying drawing: 1-pulse blowing bag type dust removing units; The 2-filter element; 3-ash discharge unit; The 4-filter bag; 5-supports the skeleton of filter bag; The 6-ash bucket; The 7-ash exhauster; 8-pulse jet system; The 9-lift valve; The 10-steam heater; The 11-electric heater unit; The built-in heating bypass duct of 12-; The 13-housing; The 14-air inlet; The 15-air outlet; The 16-pneumatic power lifting valve; 17-cloth wind swash plate.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1 and Figure 2, this has the alkali recovery furnace impulse blowing purification dust removal system of multiple black liquor disposal ability, mainly by several pulse blowing bag type dust removing units 1, and the controller of controlling these several pulse blowing bag type dust removing units 1 is formed, described controller is a PLC computer programmable preface control system, control the switch of various electronic or operated pneumatic valves, control impuls jetting deashing device online (or off-line), level pressure (or regularly) deashing work; Detect and show the pressure reduction of dust pelletizing system import and export; Detect and display system import and export exhaust gas volumn; The temperature of detection and each monitoring point of display system etc.When low temperature appearred in inlet temperature, the heating of heating system device valve was opened in control automatically.When overtemperature appears in inlet temperature, start built in bypass system valve, the safety of protection dust pelletizing system filter bag.
In described pulse blowing bag type dust removing units 1, be provided with heater; Described heater comprises steam heater 10, electric heater unit 11 and built-in heating bypass duct 12, described steam heater 10 is positioned at filter element 2 and ash discharge unit 3 connecting portions, described electric heater unit 11 is positioned at ash bucket 6 middle parts, and described built-in heating bypass duct 12 is positioned at filter element 2 cloth wind passages.
Described pulse blowing bag type dust removing units 1 is divided into filter element 2 and ash discharge unit 3, and described filter element 2 is column structure, and described ash discharge unit 3 is the back taper structure, and 3 tops, described ash discharge unit are connected with filter element 2 bottoms; Be provided with the skeleton 5 of some filter bags 4 and some support filter bags in described filter element 2, described filter bag 4 is suspended in the filter element 2 by the skeleton 5 that supports filter bag; Described ash discharge unit 3 comprises ash bucket 6 and ash exhauster 7, and described ash exhauster 7 is positioned at 3 bottoms, ash discharge unit, and described ash bucket 6 tops link to each other with filter element 2 bottoms, and the bottom links to each other with ash exhauster 7; Be provided with pulse jet system 8 and lift valve 9 on described filter element 2 tops, described pulse jet system 8 and lift valve 9 link to each other with some filter bags 4 tops respectively.
Described ash exhauster 7 comprises three kinds of frame modes:
First kind of frame mode adopts the star discharger, the carbonated drink carrier pipe.Method of attachment is: ash bucket 6 outlets of dust pelletizing system are connected with the import of star discharger, and the outlet of star discharger is connected with the import of carbonated drink conveyance conduit.
Second kind of frame mode adopts the gravity dumping device, air conveyer flume.Method of attachment is: ash bucket 6 outlets of dust pelletizing system are connected with the import of gravity dumping device, and the outlet of gravity dumping device is connected with the air conveyer flume import.
The third frame mode adopts the gravity dumping device, the strength delivery pump.Method of attachment is: ash bucket 6 outlets of dust pelletizing system are connected with the import of gravity dumping device, and the outlet of gravity dumping device is connected with the import of strength delivery pump.
This system is the rectangle battle array that is made of described several pulse blowing bag type dust removing units 1, and this system also comprises housing 13, described filter element 2 is positioned within the housing 13, be provided with air inlet 14 at described housing 13 1 ends, the other end relative with it is provided with air outlet 15, is respectively equipped with pneumatic power lifting valve 16 on described air inlet 14 and air outlet 15; The middle part is provided with the cloth wind passage that is made of two cloth wind swash plates 17 in described housing 13, described filter bag 4 is positioned at housing 13, and be distributed in cloth wind passage both sides, can not cause obstruction, and described cloth wind passage two ends connect air inlet 14 and air outlet 15 respectively the air intake in the passage.
Brush respectively on the skeleton 5 of described support filter bag, built-in heating bypass duct 12, the housing 13 corrosion-inhibiting coating is arranged.
When using this to have the alkali recovery furnace impulse blowing purification dust removal system of multiple black liquor disposal ability, at first its concrete condition according to smoke treatment is arranged to different matrix forms, can be set to single or double.The alkali kiln gas connects the air inlet 14 of this dust pelletizing system by pipeline, dust pelletizing system air inlet 14 and airflow uniform distribution device, promptly the cloth wind passage that is made of cloth wind swash plate 17 connects, dust pelletizing system housing 13 inside are provided with filter bag 4, pulse spraying equipment 8 is located at dust pelletizing system top, the pulse jet pipe has the outlet of twisted-pair cable type low-resistance, dust pelletizing system top and ash bucket 6 all are provided with access door, the dust pelletizing system middle part is provided with steam heater 10, dust pelletizing system bottom ash bucket 6 is provided with electric heater unit 11, and dust pelletizing system air outlet 15 connects air-introduced machine.
The course of work of the present invention is: the flue gas from the alkali stove enters dust pelletizing system by pipeline, after ash-laden gas enters dust pelletizing system, enter by airflow uniform distribution device, ash bucket in the upper box of dust pelletizing system, bag filtration after filtration, fine dust is attached to the outer surface of filter bag, flue gas after being purified is by air-purifying chamber, and upper box is discharged dust pelletizing system, and the dust content of clean flue gas is lower than 50mg/Nm
3The work certain hour, along with the dust increase of filter bag outside, the dust pelletizing system resistance rises.When resistance rises to certain value, beginning deashing, the mode of employing off-line (or online) deashing.Send the deashing signal by electrical apparatus control system, pulse ash remover work, the dust on filter bag surface is eliminated, and falls into the lower taper ash bucket.After this process finished, SR reduced, and filter bag recovers filtration work again.
In the purification and deashing process of ash-laden gas, the dust that is eliminated or settles down enters ash bucket, discharges by ash bucket bottom ash conveying device.First kind of defeated grey mode is: open the revolution discharger and make the dust in the ash bucket send into the carbonated drink conveyance conduit to dust by the revolution discharger, send the liquid hopper back to by the carbonated drink conveyance conduit.Second kind of defeated grey mode is: by the gravity unloading valve dust is unloaded into air conveyer flume, by air conveyer flume, dust is carried back the liquid hopper.The third defeated grey mode is: by the gravity dumping device dust is discharged into the strength delivery pump, the strength delivery pump uses pressure-air that dust is carried back the liquid hopper.
Concrete implementation is: the ash-laden gas that goes out from the alkali fire grate, at first enter dust pelletizing system air inlet 14, make ash-laden gas evenly enter the housing 13 of dust pelletizing system through cloth wind swash plate 17, the housing 13 inner filter bags 4 that purify dusty gas that hang, and the skeleton 5 that supports filter bag, when dusty gas passed through filter bag 4, the alkali dirt in the gas was isolated in filter bag 4 outsides, the gas that purified enters air outlet 15 by lift valve 9, enters chimney through blower fan.
It is long-pending when a certain amount of to be isolated in the alkali dirt in filter bag 4 outsides, controller control lift valve 9, close ventilating duct, and starting impulse injection system 8, to filter bag 4 inner winding-up compressed air, make the alkali dirt that is isolated in filter bag 4 outsides break away from filter bag 4, drop to ash bucket 6, through ash exhauster 7 alkali dirt is transported to spout again.
As mentioned above, just can realize the present invention preferably.
Claims (10)
1, the alkali recovery furnace impulse blowing purification dust removal system that has multiple black liquor disposal ability, it is characterized in that, mainly by several pulse blowing bag type dust removing units (1), and the controller composition of controlling these several pulse blowing bag type dust removing units (1), in described pulse blowing bag type dust removing units (1), be provided with heater.
2, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 1, it is characterized in that, described pulse blowing bag type dust removing units (1) is made of filter element (2) and ash discharge unit (3), described filter element (2) is column structure, described ash discharge unit (3) is the back taper structure, and top, described ash discharge unit (3) is connected with filter element (2) bottom.
3, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 2, it is characterized in that, be provided with the skeleton (5) of some filter bags (4) and some support filter bags in described filter element (2), described filter bag (4) is suspended in the filter element (2) by the skeleton (5) that supports filter bag.
4, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 2, it is characterized in that, described ash discharge unit (3) comprises ash bucket (6) and ash exhauster (7), described ash exhauster (7) is positioned at bottom, ash discharge unit (3), described ash bucket (6) top links to each other with filter element (2) bottom, and the bottom links to each other with ash exhauster (7).
5, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 2, it is characterized in that, be provided with pulse jet system (8) on described filter element (2) top, described pulse jet system (8) links to each other with some filter bags (4) top respectively.
6, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 2, it is characterized in that, be provided with lift valve (9) on described filter element (2) top, described lift valve (9) links to each other with some filter bags (4) top respectively.
7, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 1, it is characterized in that, described heater comprises steam heater (10), electric heater unit (11) and built-in heating bypass duct (12), described steam heater (10) is positioned at filter element (2) and ash discharge unit (3) connecting portion, described electric heater unit (11) is positioned at ash bucket (6) middle part, and described built-in heating bypass duct (12) is positioned at filter element (2).
8, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 1, it is characterized in that, this dust pelletizing system is the rectangle battle array that is made of described several pulse blowing bag type dust removing units (1), and this system also comprises housing (13), described filter element (2) is positioned within the housing (13), be provided with air inlet (14) at described housing (13) one ends, the other end relative with it is provided with air outlet (15), is respectively equipped with pneumatic power lifting valve (16) on described air inlet (14) and air outlet (15).
9, the alkali recovery furnace impulse blowing purification dust removal system with multiple black liquor disposal ability according to claim 8, it is characterized in that, in described housing (13), be provided with the cloth wind passage that constitutes by two cloth wind swash plates (17), described built-in heating bypass duct (12) is positioned at filter element (2) cloth wind passage, and described cloth wind passage two ends connect air inlet (14) and air outlet (15) respectively.
10, according to claim 3 or 7 or 8 described alkali recovery furnace impulse blowing purification dust removal systems with multiple black liquor disposal ability, it is characterized in that brushing respectively on the skeleton of described support filter bag (5), built-in heating bypass duct (12), the housing (13) has corrosion-inhibiting coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101643445A CN101664616B (en) | 2009-09-04 | 2009-09-04 | Alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101643445A CN101664616B (en) | 2009-09-04 | 2009-09-04 | Alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101664616A true CN101664616A (en) | 2010-03-10 |
| CN101664616B CN101664616B (en) | 2011-12-07 |
Family
ID=41801491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101643445A Active CN101664616B (en) | 2009-09-04 | 2009-09-04 | Alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101664616B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949891A (en) * | 2011-08-18 | 2013-03-06 | 林州市林丰铝电有限责任公司 | Side-spray low-pressure-impulse bag-type dust collector |
| CN116726624A (en) * | 2023-07-31 | 2023-09-12 | 山东大成环境修复有限公司 | Dust removing system for thermal desorption tail gas |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1005246B (en) * | 1987-03-05 | 1989-09-27 | 劳动人事部劳动保护科学研究所 | Chambered air-stopping pulse blowing bag type dust collector |
| CN1042743A (en) * | 1989-09-01 | 1990-06-06 | 四川省乡镇企业造纸协会 | Soda recovery process of small paper mill and equipment |
| CN100408918C (en) * | 2004-01-15 | 2008-08-06 | 沈阳戴维国际机电设备有限公司 | Method for dealing with discharge liquid from paper, leather and dye printing industry using circulating fluidized combustion method |
| CN101015757B (en) * | 2006-02-06 | 2011-04-06 | 上海市凌桥环保设备厂有限公司 | Pulse spray bag type dust remover of big anti-block ash bucket |
| CN200974003Y (en) * | 2006-11-27 | 2007-11-14 | 于仁先 | Pulse blowing cloth bag type dust precipitator |
| CN101028576A (en) * | 2006-12-26 | 2007-09-05 | 云南银发环保集团股份有限公司 | Assembled electric bag dust collector |
| CN201482350U (en) * | 2009-09-04 | 2010-05-26 | 谭鼎昌 | Pulse-jetting purifying and dust removing system of alkali recovering furnace with multiple black liquor processing capacities |
-
2009
- 2009-09-04 CN CN2009101643445A patent/CN101664616B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949891A (en) * | 2011-08-18 | 2013-03-06 | 林州市林丰铝电有限责任公司 | Side-spray low-pressure-impulse bag-type dust collector |
| CN116726624A (en) * | 2023-07-31 | 2023-09-12 | 山东大成环境修复有限公司 | Dust removing system for thermal desorption tail gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101664616B (en) | 2011-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102107107B (en) | Split-type pulse dust collector for drying and burning sludge | |
| CN108895465B (en) | High-efficient environmental protection waste disposal system | |
| CN106178738A (en) | A kind of Modular high-temperature smoke duster | |
| CN201997197U (en) | Box-divided pulse dust remover for drying and burning sludge | |
| CN105617798A (en) | Air-conveying type ultrasonic wave micron-grade dry fog dust suppression system and method | |
| CN101559307A (en) | High temperature resistant dust collector | |
| CN201482350U (en) | Pulse-jetting purifying and dust removing system of alkali recovering furnace with multiple black liquor processing capacities | |
| CN101664616B (en) | Alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities | |
| CN201168519Y (en) | High temperature coal gas bag-type dust remover | |
| WO2018210643A1 (en) | Low particulate matter emission fabric filter | |
| CN112569765A (en) | Furnace kiln smoke environment-friendly ultra-clean discharge system for refractory material and metallurgical smelting industry | |
| CN114558423B (en) | Asphalt flue gas coke powder injection adsorption purification device | |
| CN210138551U (en) | Bag-type dust removal system based on cloud platform | |
| CN201168535Y (en) | Continuous flue gas desulfurization dust removing integrated purification system | |
| CN214182226U (en) | Industrial furnace cloth bag dust remover capable of detecting and replacing damaged cloth bag on line | |
| CN205032002U (en) | Acetylene gas generator carbide exhaust gas purification system for awning | |
| CN108379956A (en) | A kind of dust-extraction unit | |
| CN111321263A (en) | Blast furnace raw gas heating method and device | |
| CN105087854B (en) | Converter high-temperature flue gas dry method dust and process waste heat staged reclaimer and method | |
| CN212703045U (en) | Active carbon winnowing dust removal device for desulfurization and denitrification system | |
| CN210543842U (en) | Bag collector with dust bag leak hunting function | |
| US20090010720A1 (en) | Use of air activated gravity conveyors in a continuous particulate removal process from an ESP or baghouse | |
| CN211060680U (en) | Purification system of calcium carbide furnace gas | |
| CN207407322U (en) | A kind of secondary exhaust gas combustion environmental protecting device | |
| CN215462668U (en) | Dust removal system for removing water vapor in high-temperature flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |