CN203469714U - Granular bed deduster capable of automatic counter-blowing for removing dust - Google Patents
Granular bed deduster capable of automatic counter-blowing for removing dust Download PDFInfo
- Publication number
- CN203469714U CN203469714U CN201320535269.0U CN201320535269U CN203469714U CN 203469714 U CN203469714 U CN 203469714U CN 201320535269 U CN201320535269 U CN 201320535269U CN 203469714 U CN203469714 U CN 203469714U
- Authority
- CN
- China
- Prior art keywords
- blowing
- distribution plate
- counter
- housing
- nozzle
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to a granular bed deduster, and particularly relates to a granular bed deduster capable of automatic counter-blowing for removing the dust; the granular bed deduster comprises a casing (4), a wind-distribution plate (6) and a granular layer (13) are arranged in the casing, the granular layer is arranged above the wind distribution plate, a cavity defined by the casing and the top of the granular layer is a gas inlet chamber (14) with a gas inlet (16), a cavity defined by the casing and the bottom of the wind-distribution plate is a gas outlet chamber (7) with a gas outlet (8), the gas inlet chamber is provided with a counter-blowing gas discharge port (1), a nozzle (5) is fixed at the lower part of the wind-distribution plate, the nozzle is connected with a counter-blowing gas storage tank (12) through a counter-blowing pipe (11), the counter-blowing pipe is provided with a venturi tube (9) and a pulse counter-blowing valve (10), and the venturi tube and the pulse counter-blowing valve are in connection with a control unit. The granular bed deduster has the advantages of simple structure and high work efficiency, can realize granular bed dedusting cyclic regeneration, can adjust in real time the gas flow of a counter blowing gas, and is good in filter stability, low in operation cost, and long in service life.
Description
Technical field
The utility model relates to a kind of grain bed deduster, particularly a kind of grain bed deduster that can automatic back blow deashing.
Background technology
Grain bed deduster, because of its good high temperature high voltage resistant performance, removes when being particularly easy to realize multiple harmful substances, and since the nineties, ，Shen Shou various countries pay attention to.Its dust removal and filtration mode is mainly a kind of mode that absorption, surface filtration and in-depth filtration combine.Work principle of filter is mainly inertial collision, spreads and holds back.Research shows, Bed Filtration device filtered after a period of time, and the pressure drop of bed is substantially exponential form and increases, and the excessive increase of pressure drop can affect proceeding of follow-up filtration.Therefore need to carry out necessary blowback to grain bed and clean, to realize the continuous firing moving in circles.
Grain bed deduster at present adopts pneumatic deashing method, and less employing mechanical ash removing method.Reason is that mechanical ash removing method is easy to mix filtrate between layers, destroys bilayer or sandwich construction.The purge mode that a Chinese utility model patent < < filter for granular with auto-moving bed > > (CN89200977U) adopts be utilize particle sprayer band dirt particle delivery to deashing in particle dust remover, the major defect of this mode is easily to cause that reentrainment of dust, wear of filtering material are serious, energy consumption is relatively high, and particle moving speed is uneven, control more complicated.The deashing process of Chinese invention patent < < grain bed dust arrester and method > > (CN1470310A) thereof and < < grain bed gas-filtering device and screening and dedusting method > > (CN102019118A) thereof is all first ash-laden gas import and clean gas outlet to be closed, open again blowback air import and blowback air outlet, the blowback air air-distribution device of flowing through from bottom to top, stratum granulosum and powder layer, then be with dust is drawn housing from the blowback air outlet of housing.What the purge mode of these two kinds of devices adopted is all regularly blowback mode, and in practical operation, owing to operating the difference of the fluctuation of operating mode or the material of filtrate, stacking states, thickness etc., can cause different filtration pressure drops.Therefore for the difference of different operating conditions or filtrate character, and cannot adjust in time the reverse gas cleaning cycle, be the operational efficiency that can affect whole system.
Simultaneously for dust of different nature, because of its difference to the adhesion of grain bed or the granularity of itself, temperature, humidity, disperse state etc., during blowback, the gas usage of demand is different.And existing deashing device is all generally to be controlled by a pulse valve, the consumption of purge gas is all identical during deashing.Therefore the dust being easily eliminated for those can cause the unnecessary waste of purge gas.In addition, for different grain bed filtrates, the fluidizing velocity of its requirement is also not quite similar.Fluidizing velocity is too large, easily causes stratum granulosum to mix; Fluidizing velocity is too little, does not have the effect of deashing.
Utility model content
According to above deficiency of the prior art, problem to be solved in the utility model is: provide a kind of simple in structure, operating efficiency is high, can realize grain bed dedusting circular regeneration, can adjust in real time the gas flow of purge gas, filter stability is good, cost is low can automatic back blow deashing grain bed deduster.
The utility model solves the technical scheme that its technical problem adopts:
Described grain bed deduster that can automatic back blow deashing, comprise housing, enclosure interior arranges air distribution plate and stratum granulosum, stratum granulosum is arranged on the top of air distribution plate, the cavity that stratum granulosum top and housing form is the inlet plenum with gas feed, air distribution plate bottom is the discharge chamber with gas vent with the cavity that housing forms, inlet plenum is also provided with blowback air exhaust outlet, air distribution plate bottom is fixed with nozzle, nozzle connects blowback air accumulator by blowback pipeline, blowback pipeline is provided with Venturi tube and pulse backblowing valve, Venturi tube and pulse backblowing valve connection control unit.
Described grain bed deduster that can automatic back blow deashing is provided with the pulse backblowing valve, the Venturi tube that are electrically connected to control module the flow of purge gas, flow velocity is detected and controlled, to realize deduster carried out to the reasonable control of dynamic blowback adjustment and blowback flow, can be according to the difference of actual operating mode, rationally adjust blowback pressure and the blowback cycle of grain bed, not only can avoid under underrun operating mode deashing frequency too high, can avoid again the problem of the deashing frequency deficiency under extreme loads operating condition.
Wherein preferred:
Between described inlet plenum and discharge chamber, connect differential pressure pickup, differential pressure pickup connection control unit.The pressure drop of stratum granulosum is detected and controlled.
Described nozzle arranges a plurality of, and nozzle such as is at the gap arrangement.Nozzle is by the filter bottom end portion of inserting into the inner fixing, and each nozzle such as is at the gap arrangement, and its arrangement mode and usage quantity determine with the shape of described housing and the cross-sectional area of stratum granulosum, thickness, guarantee without dead angle raising cleaning effect.
Described stratum granulosum be two-layer more than.Stratum granulosum filtrate used is diatomaceous filtrate and andalusite filtrate, and cost is low, and anti-wear performance is good.
The equal set temperature table in upper and lower of described housing, housing middle part arranges visual windows.Facilitate Real-Time Monitoring temperature and observe deduster internal operation state.
The beneficial effect that the utility model has is:
Described grain bed deduster that can automatic back blow deashing is provided with pulse backblowing valve, Venturi tube and the differential pressure pickup being electrically connected to control module, can the flow of the pressure drop of stratum granulosum and purge gas, flow velocity be detected and be controlled, to realize, deduster be carried out to the reasonable control of dynamic blowback adjustment and blowback flow.Can, according to the difference of actual operating mode, rationally adjust blowback pressure and the blowback cycle of grain bed.So not only can avoid under underrun operating mode deashing frequency too high, can avoid again the problem of the deashing frequency deficiency under extreme loads operating condition.Control by Venturi tube to purge gas flow, flow velocity, can meet the requirement of different filtering layer filtrates to fluidizing velocity, both can be by the adjusting of Venturi tube, realize the best collocation of fluidizing velocity and blowback pressure, meanwhile, the dust requiring for different deashings, also can reasonably regulate by Venturi tube, avoid the waste of blowback air-flow, thus cost-saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is one of injector configuration schematic diagram of the present utility model;
Fig. 3 is two of injector configuration schematic diagram of the present utility model;
Wherein, 1, blowback air exhaust outlet; 2, differential pressure pickup; 3, visual windows; 4, housing; 5, nozzle; 6, air distribution plate; 7, discharge chamber; 8, gas vent; 9, Venturi tube; 10, pulse backblowing valve; 11, blowback pipeline; 12, blowback air accumulator; 13, stratum granulosum; 14, inlet plenum; 15, thermometer; 16, gas feed.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1-Figure 3, grain bed deduster that can automatic back blow deashing described in the utility model, comprise housing 4, housing 4 inside arrange air distribution plate 6 and stratum granulosum 13, stratum granulosum 13 is arranged on the top of air distribution plate 6, the cavity that stratum granulosum 13 tops and housing 4 form is the inlet plenum 14 with gas feed 16, the cavity that air distribution plate 6 bottoms and housing 4 form is the discharge chamber 7 with gas vent 8, inlet plenum 14 is also provided with blowback air exhaust outlet 1, air distribution plate 6 bottoms are fixed with nozzle 5, nozzle 5 connects blowback air accumulator 12 by blowback pipeline 11, blowback pipeline 11 is provided with Venturi tube 9 and pulse backblowing valve 10, Venturi tube 9 and pulse backblowing valve 10 connection control units.
Wherein, between inlet plenum 14 and discharge chamber 7, connect differential pressure pickup 2, differential pressure pickup 2 connection control units, nozzle 5 arranges a plurality of, and nozzle 5 such as is at the gap arrangement.Stratum granulosum 13 be two-layer more than, the upper and lower equal set temperature table 15 of housing 4, housing 4 middle parts arrange visual windows 3.
Operation principle and use procedure:
As Figure 1-3, the end of the blowback pipeline 11 of described grain bed deduster that can automatic back blow deashing can be provided with a plurality of nozzles 5, its arrangement mode and the shape of quantity Main Basis housing 4 cross sections, the thickness of stratum granulosum or dust character not definite on an equal basis.The Venturi tube 9 being provided with in described blowback pipeline 11 can be controlled the implementation of purge gas flow, flow velocity, to be used for meeting the requirement of different filtering layer filtrates to fluidizing velocity.Both can realize the best collocation of fluidizing velocity and blowback pressure by the adjusting of Venturi tube, also can reasonably regulate by Venturi tube, avoid the waste of blowback air-flow, thus cost-saving.
The differential pressure pickup 2 connecting between described inlet plenum 4 and discharge chamber 7, for the pressure drop of grain bed is monitored, when the pressure drop of grain bed increases to setting range, pulse backblowing valve 10 is opened, add the control of 9 pairs of purge gas flows of Venturi tube, flow velocity, can realize to grain bed carry out timely, the backwash effect of some strength, more flexible automatic.
Claims (5)
- One kind can automatic back blow deashing grain bed deduster, comprise housing (4), it is characterized in that: housing (4) inside arranges air distribution plate (6) and stratum granulosum (13), stratum granulosum (13) is arranged on the top of air distribution plate (6), the cavity that stratum granulosum (13) top and housing (4) form is the inlet plenum (14) of band gas feed (16), air distribution plate (6) bottom is the discharge chamber (7) of band gas vent (8) with the cavity that housing (4) forms, inlet plenum (14) is also provided with blowback air exhaust outlet (1), air distribution plate (6) bottom is fixed with nozzle (5), nozzle (5) connects blowback air accumulator (12) by blowback pipeline (11), blowback pipeline (11) is provided with Venturi tube (9) and pulse backblowing valve (10), Venturi tube (9) and pulse backblowing valve (10) connection control unit.
- 2. grain bed deduster that can automatic back blow deashing according to claim 1, is characterized in that: between described inlet plenum (14) and discharge chamber (7), connect differential pressure pickup (2), differential pressure pickup (2) connection control unit.
- 3. grain bed deduster that can automatic back blow deashing according to claim 1, is characterized in that: described nozzle (5) arranges a plurality of, and nozzle (5) such as is at the gap arrangement.
- 4. grain bed deduster that can automatic back blow deashing according to claim 1, is characterized in that: described stratum granulosum (13) is for more than two-layer.
- 5. grain bed deduster that can automatic back blow deashing according to claim 1, is characterized in that: the equal set temperature table in upper and lower (15) of described housing (4), housing (4) middle part arranges visual windows (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535269.0U CN203469714U (en) | 2013-08-30 | 2013-08-30 | Granular bed deduster capable of automatic counter-blowing for removing dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535269.0U CN203469714U (en) | 2013-08-30 | 2013-08-30 | Granular bed deduster capable of automatic counter-blowing for removing dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203469714U true CN203469714U (en) | 2014-03-12 |
Family
ID=50218132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320535269.0U Expired - Fee Related CN203469714U (en) | 2013-08-30 | 2013-08-30 | Granular bed deduster capable of automatic counter-blowing for removing dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203469714U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226070A (en) * | 2014-10-21 | 2014-12-24 | 北京弘扬紫东环保科技有限公司 | Fixed particle layer dust remover |
| CN104568690A (en) * | 2015-01-07 | 2015-04-29 | 浙江南源环境工程技术有限公司 | PM2.5 dust detection device and PM2.5 dust detection system of wet-type electric dust collector |
| CN104874242A (en) * | 2015-05-29 | 2015-09-02 | 扬中市第一蝶阀厂有限公司 | Granular layer filtration device based dust cleaning system |
| CN105058619A (en) * | 2015-07-30 | 2015-11-18 | 江苏锐升新材料有限公司 | Precise filter for floor processing |
| CN105202548A (en) * | 2015-10-13 | 2015-12-30 | 武汉高特维电气有限公司 | Flue gas treatment device for domestic refuse incineration |
| CN109357557A (en) * | 2017-09-22 | 2019-02-19 | 萍乡市华星环保工程技术有限公司 | A kind of flue gas ash removal and waste heat recycle integrated device |
| CN110975458A (en) * | 2019-12-23 | 2020-04-10 | 盐城工学院 | Internal circulation particle bed dust remover |
| CN112816644A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Device and method for detecting VOCs in water |
-
2013
- 2013-08-30 CN CN201320535269.0U patent/CN203469714U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226070A (en) * | 2014-10-21 | 2014-12-24 | 北京弘扬紫东环保科技有限公司 | Fixed particle layer dust remover |
| CN104226070B (en) * | 2014-10-21 | 2015-11-18 | 北京弘扬紫东环保科技有限公司 | Immobilized particles layer deduster |
| CN104568690A (en) * | 2015-01-07 | 2015-04-29 | 浙江南源环境工程技术有限公司 | PM2.5 dust detection device and PM2.5 dust detection system of wet-type electric dust collector |
| CN104874242A (en) * | 2015-05-29 | 2015-09-02 | 扬中市第一蝶阀厂有限公司 | Granular layer filtration device based dust cleaning system |
| CN105058619A (en) * | 2015-07-30 | 2015-11-18 | 江苏锐升新材料有限公司 | Precise filter for floor processing |
| CN105202548A (en) * | 2015-10-13 | 2015-12-30 | 武汉高特维电气有限公司 | Flue gas treatment device for domestic refuse incineration |
| CN109357557A (en) * | 2017-09-22 | 2019-02-19 | 萍乡市华星环保工程技术有限公司 | A kind of flue gas ash removal and waste heat recycle integrated device |
| CN110975458A (en) * | 2019-12-23 | 2020-04-10 | 盐城工学院 | Internal circulation particle bed dust remover |
| CN112816644A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Device and method for detecting VOCs in water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203469714U (en) | Granular bed deduster capable of automatic counter-blowing for removing dust | |
| CN102698546B (en) | Pulse reverse blowing ash removal device of ceramic filter | |
| CN206468408U (en) | A kind of diesel engine back flushing type smoke discharging and purifying device | |
| CN106345192A (en) | Small-size pulse bag dust collector | |
| CN203663588U (en) | Special pulsed jet cloth filter for compound fertilizers | |
| CN200961246Y (en) | Dust remover of road sweeping lorry | |
| CN201669025U (en) | Efficient and convenient combined type gas-solid separating device | |
| CN203417545U (en) | Bag dust remover | |
| CN208244334U (en) | A kind of Pulse filter drum dust collector | |
| CN202020984U (en) | Novel dust removing device | |
| NL2025879B1 (en) | Microporous membrane dust collector for dust removal based on rotary pulse and dust removal method therefor | |
| CN204553172U (en) | A kind of energy-efficient air compressor air intake filtration system | |
| CN202778139U (en) | Filtering and washing device for boiling granulation drier | |
| CN205516981U (en) | Printing processing equipment and dust collector thereof | |
| CN110567078B (en) | New fan of long-life | |
| CN201999906U (en) | Blast furnace gas dust collecting device | |
| CN207287016U (en) | Production of carbon black workshop cleaner | |
| CN203678167U (en) | Dust remover | |
| CN107096334A (en) | One kind filtering tube sheet and pulse backblowing deashing device | |
| CN206262277U (en) | A kind of nano fibrous membrane bag hose | |
| CN204684826U (en) | Pulse bag type dust collector | |
| CN206688406U (en) | A kind of Chemical Manufacture mechanical collector | |
| CN207024882U (en) | A kind of negative pressure sucktion type pulsed dust-removing device for steel skeleton building materials feedstock transportation | |
| CN202638153U (en) | High-efficiency long-bag low pressure pulse bag-type dust remover | |
| CN208275151U (en) | A kind of filtering tube sheet and pulse backblowing deashing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20180830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |