CN106964213A - A kind of modular radial dedusting Benitration reactor - Google Patents

A kind of modular radial dedusting Benitration reactor Download PDF

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Publication number
CN106964213A
CN106964213A CN201710352740.5A CN201710352740A CN106964213A CN 106964213 A CN106964213 A CN 106964213A CN 201710352740 A CN201710352740 A CN 201710352740A CN 106964213 A CN106964213 A CN 106964213A
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CN
China
Prior art keywords
bin
radial direction
bag
denitration
dust
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CN201710352740.5A
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Chinese (zh)
Inventor
卢昊
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Anhui Morning Cleaning Technology Co Ltd
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Anhui Morning Cleaning Technology Co Ltd
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Priority to CN201710352740.5A priority Critical patent/CN106964213A/en
Publication of CN106964213A publication Critical patent/CN106964213A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023Pockets filters, i.e. multiple bag filters mounted on a common frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8631Processes characterised by a specific device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/92Dimensions
    • B01D2255/9202Linear dimensions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The present invention discloses a kind of modular radial dedusting Benitration reactor, including reactor body, it is characterized in that, multigroup bin for flue gas ash removal denitration is provided with inside the reactor body, the bin is provided with air inlet and gas outlet, upper bin and lower bin are divided into by dividing plate and horizontally disposed card inside bin, the air inlet is communicated with lower bin, the gas outlet is communicated with upper bin, multiple dust-removal cloth-bags are provided with the lower bin, the sack of the multiple dust-removal cloth-bag is all buckled on card, soot blowing pipeline is provided with above the card, the radial direction denitration bed corresponding with dust-removal cloth-bag is additionally provided with inside the bin, flue gas sequentially passes through dust-removal cloth-bag and radial direction denitration bed in the way of Radial Flow, the present invention is simple in construction, it is novel, two equipment of denitration and dedusting are merged into an equipment, flue gas even distribution device need not be increased, while denitration efficiency is ensured, reduce investment and occupation area of equipment.

Description

A kind of modular radial dedusting Benitration reactor
Technical field
The present invention relates to industrial flue gas cleaning processing unit, specifically a kind of modular radial dedusting Benitration reactor.
Background technology
China is coal-fired big country, and the production process such as fire coal, coking, glass can all produce a certain amount of dust, SO2, nitrogen oxygen Compound and harmful metal elements etc., NO in flue gasXDischarge compare SO2Harm to environment is even more serious, the row of a large amount of nitrogen oxides The a series of environmental problem such as acid rain, photochemical fog, depletion of the ozone layer and greenhouse effects can be caused by putting, particularly national in recent years Serious " haze " phenomenon that most of place occurs, it has its source in the discharge of nitrogen oxides, control NO_x in Air Environment Discharge causes the concern in the whole world, while being also the emphasis and difficult point protected in the current atmospheric environment of China, therefore, NOXPlace Reason is particularly important.
According to current market trend, desulfurization is divided into dry method, semidry method and wet method, is promoted in national long-term environmental protection policy Under, its most of technique is all very ripe, stable;Denitration is main based on SCR (SCR) technology, its technology into It is ripe, efficiently and be widely used.
Domestic at present there are many flue gas desulfurization and denitrification residual heat integrative processing systems, its technical process be by denitration, Waste heat, desulfurization unit are together in series, to reach the purpose of the comprehensive regulation.But all many problems of generally existing:
1st, SCR denitration can be divided into high temperature catalyst (300~400 DEG C), middle low temperature catalyst (180~300 DEG C) Two kinds:High temperature catalyst is widely used in power industry at present, and technology is highly developed;Middle low temperature catalyst is currently only used for Jiao The minority industry such as change, glass, is remained in certain technical risk, the problems such as principal risk is the anti-dust of catalyst, sulfur resistive, simultaneously Traditional SCR denitration typically uses honeycomb bulk-mode, modularization assembling, and denitrification apparatus takes up an area big, one-time investment height, separately Outer air speed is low, and catalyst amount is big, and utilization rate is relatively low.
2nd, wet desulphurization effect very well, is widely applied to industry-by-industry, but can cause secondary dirt in sulfur removal technology Dye, severe corrosion equipment, water consumption is high, floor space is big, and investment operating cost is high;It is national that the market of wet desulphurization is accounted at present Than carrying out certain regulation and control, as semi-dry desulphurization technology reaches its maturity, it will slowly replace wet desulphurization.
Although the 3, there is the technique administered to smoke comprehensive at present, from using, investment, in terms of efficiency for also have it is a lot Problem needs to solve.
The content of the invention
It is an object of the invention to provide a kind of modular radial dedusting Benitration reactor, to solve in above-mentioned background technology The problem of proposition.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is:
A kind of modular radial dedusting Benitration reactor, including reactor body, it is characterised in that the reactor body Inside is provided with multigroup bin for flue gas ash removal denitration, the bin provided with air inlet and gas outlet, inside bin by every Plate and horizontally disposed card are divided into bin and lower bin, and the air inlet is communicated with lower bin, the gas outlet with it is upper Bin is communicated, and multiple dust-removal cloth-bags is provided with the lower bin, the sack of the multiple dust-removal cloth-bag is all buckled on card, described Be provided with inside soot blowing pipeline, the bin above card and be additionally provided with the radial direction denitration bed corresponding with dust-removal cloth-bag, flue gas with The mode of Radial Flow sequentially passes through dust-removal cloth-bag and radial direction denitration bed.
Further, radial direction denitration bed has multiple structural forms and corresponding a variety of installation sites, including Bag cagelike structure, cover type structure, bin found surface structure, bin tiling type structure.
Further, if radial direction denitration bed uses bag cagelike structure, it is shaped as cylinder barrel shaped, each radial direction denitration Bed one dust-removal cloth-bag of correspondence, radial direction denitration bed is close in dust-removal cloth-bag inner surface, insertion dust-removal cloth-bag bag cage, the footpath Include inwall and outer wall to denitration bed, the inwall is netted with outer wall, is equipped between the inwall and outer wall for cigarette The pellet type catalyst of qi exhaustion nitre.
Further, if radial direction denitration bed uses cover type structure, it is shaped as cylinder barrel shaped, each radial direction denitration bed One dust-removal cloth-bag of correspondence, radial direction denitration bed is arranged between card and soot blowing pipeline, and cover is buckled on card, and positioned at dedusting Directly over the sack of cloth bag, the radial direction denitration bed includes inwall and outer wall, the inwall be with outer wall it is netted, it is described interior The pellet type catalyst for denitrating flue gas is equipped between wall and outer wall.
Further, if radial direction denitration bed founds surface structure using bin, it is panel-shaped, is vertically positioned at bin And the position of the outlet close to flue gas, its two plane in left and right is netted, and is equipped between two planes for denitrating flue gas Pellet type catalyst.
Further, if radial direction denitration bed uses bin tiling type structure, it is panel-shaped, and in the form of tiling It is placed in above soot blowing pipeline, two each planes are netted above and below it, and the particle for denitrating flue gas is equipped between two planes Shape catalyst.
Further, bin lower end is provided with ash bucket.
The beneficial effects of the invention are as follows:
Structure of the present invention provides a kind of modular radial dedusting Benitration reactor, its simple in construction, novelty, by denitration and removes Two equipment of dirt merge into an equipment, are not required to or not carrying out structural modifications dedusting;When flue gas passes through high temperature cloth bag, by cigarette Bisque, sulphur ammonium salt and heavy metallic oxide for being carried secretly in gas etc. are filtered down in cloth bag smooth surface, the cigarette after this spline filter Gas influences very little to the catalyst after cloth bag, is effectively protected catalyst;Using pellet type catalyst, it has mechanical strength High characteristic, service life is long.And specific surface area is big, reaction motive force is big, while denitration efficiency is ensured, can reduce again Catalyst amount;Because flue gas through cloth bag has flow velocity slow, the characteristic such as smoke distribution is uniform, same flue gas is entering catalyst Also there is the characteristics such as flow velocity is slow, smoke distribution is uniform during bed, there is very big benefit to denitration reaction.So relative to tradition SCR denitration reactor need not do flow field simulation, it is not necessary to increase flue gas even distribution device, while denitration efficiency is ensured, subtract Few investment and occupation area of equipment;Change used honeycombed catalyst in the past, using pellet type catalyst, flow of flue gas pattern by Axially it is changed into radially;Flue gas is with the flow pattern progress pellet type catalyst bed of radial direction, its turbulent extent flowed and with urging The impact severity of agent can so reduce denitration and urge relative to axially flowing can all be significantly increased in honeycomb catalyst bed layer Agent usage amount simultaneously extends catalyst usage cycles.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is body construction schematic diagram of the present invention.
Fig. 2 is radial direction denitration bed first embodiment schematic diagram.
Fig. 3 is first embodiment partial view.
Fig. 4 is radial direction denitration bed second embodiment schematic diagram.
Fig. 5 is second embodiment partial schematic diagram.
Fig. 6 is radial direction denitration bed 3rd embodiment schematic diagram.
Fig. 7 is radial direction denitration bed fourth embodiment schematic diagram.
In figure:1st, reactor body, 2, bin, 3, air inlet, 4, gas outlet, 5, ash bucket, 6, dividing plate, 7, card, 8, on Bin, 9, lower bin, 10, dust-removal cloth-bag, 11, soot blowing pipeline, 12, radial direction denitration bed, 13, inwall, 14, outer wall.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in Fig. 1~7, the modular radial dedusting Benitration reactor that the present invention is provided, including reactor body 1, institute State the inside of reactor body 1 and be provided with multigroup bin 2 for flue gas ash removal denitration, the bin 2 is provided with air inlet 3 and gas outlet 4, the lower end of bin 2 is provided with inside ash bucket 5, bin 2 and is divided into upper bin 8 and lower bin by dividing plate 6 and horizontally disposed card 7 9, the air inlet 3 is communicated with lower bin 9, and the gas outlet 4 is communicated with upper bin 8, and multiple dedustings are provided with the lower bin 9 Cloth bag 10, the sack of the multiple dust-removal cloth-bag 10 is all buckled on card 7, and the top of card 7 is provided with soot blowing pipeline 11, described The radial direction denitration bed 12 corresponding with dust-removal cloth-bag 10 is additionally provided with inside bin 2, flue gas is worn successively in the way of Radial Flow Cross dust-removal cloth-bag 10 and radial direction denitration bed 12.
Radial direction denitration bed 12 has multiple structural forms and corresponding a variety of installation sites, and the invention provides four kinds The structure that radial direction denitration bed 12 is used in embodiment, four kinds of embodiments includes bag cagelike structure, cover type structure, bin respectively Vertical surface structure, bin tiling type structure.
First embodiment
Fig. 2 is radial direction denitration bed first embodiment schematic diagram, and Fig. 3 is first embodiment partial view.
As shown in figures 2-3, radial direction denitration bed 12 is bag cagelike structure, and it is shaped as cylinder barrel shaped, each radially de- One dust-removal cloth-bag 10 of correspondence of nitre bed layer 12, radial direction denitration bed 12 is close to the inner surface of dust-removal cloth-bag 10, inserts dust-removal cloth-bag 10 In bag cage, the radial direction denitration bed 12 includes inwall 13 and outer wall 14, the inwall 13 be with outer wall 14 it is netted, it is described interior Low temperature SCR denitration catalyst in the graininess for denitrating flue gas is equipped between wall 13 and outer wall 14.
Second embodiment
Fig. 4 is radial direction denitration bed second embodiment schematic diagram, and Fig. 5 is second embodiment partial view.
As shown in Figures 4 and 5, radial direction denitration bed 12 is cover type structure, and it is shaped as cylinder barrel shaped, each radial direction denitration bed One dust-removal cloth-bag 10 of correspondence of layer 12, radial direction denitration bed 12 is arranged between card 7 and soot blowing pipeline 11, and cover is buckled in card 7 On, and directly over the sack of dust-removal cloth-bag 10, the radial direction denitration bed 12 includes inwall 13 and outer wall 14, the inwall 13 be netted with outer wall 14, and low-temperature SCR in the graininess for denitrating flue gas is equipped between the inwall 13 and outer wall 14 and is taken off Denox catalyst.
3rd embodiment
Fig. 6 is radial direction denitration bed 3rd embodiment schematic diagram.
As shown in fig. 6, radial direction denitration bed 12, which is bin, founds surface structure, it is panel-shaped, is vertically positioned at bin 8 And the position of the outlet close to flue gas, its two plane in left and right is netted, and is equipped between two planes for denitrating flue gas Graininess in low temperature SCR denitration catalyst.
Fourth embodiment
Fig. 7 is radial direction denitration bed fourth embodiment schematic diagram.
As shown in fig. 7, radial direction denitration bed 12 is bin tiling type structure, it is panel-shaped, and in the form of tiling The top of soot blowing pipeline 11 is placed in, two each planes are netted above and below it, and for denitrating flue gas is equipped between two planes Granular middle low temperature SCR denitration catalyst.
The embodiments of the present invention described above are not intended to limit the scope of the present invention, any in the present invention Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention Within enclosing.

Claims (7)

1. a kind of modular radial dedusting Benitration reactor, including reactor body, it is characterised in that in the reactor body Portion is provided with multigroup bin for flue gas ash removal denitration, and the bin, which is provided with inside air inlet and gas outlet, bin, passes through dividing plate And horizontally disposed card is divided into bin and lower bin, the air inlet is communicated with lower bin, the gas outlet and upper storehouse Room is communicated, and multiple dust-removal cloth-bags are provided with the lower bin, and the sack of the multiple dust-removal cloth-bag is all buckled on card, the flower It is provided with above plate inside soot blowing pipeline, the bin and is additionally provided with the radial direction denitration bed corresponding with dust-removal cloth-bag, flue gas is with footpath Dust-removal cloth-bag and radial direction denitration bed are sequentially passed through to the mode of flowing.
2. modular radial dedusting Benitration reactor according to claim 1, it is characterised in that the radial direction denitration bed There are multiple structural forms and corresponding a variety of installation sites, including bag cagelike structure, cover type structure, bin facade type Structure, bin tiling type structure.
3. modular radial dedusting Benitration reactor according to claim 2, it is characterised in that if radial direction denitration bed is adopted Bag cagelike structure is used, it is shaped as cylinder barrel shaped, one dust-removal cloth-bag of each radial direction denitration bed correspondence, radial direction denitration bed It is close in dust-removal cloth-bag inner surface, insertion dust-removal cloth-bag bag cage, the radial direction denitration bed includes inwall and outer wall, the inwall It is netted with outer wall, the pellet type catalyst for denitrating flue gas is equipped between the inwall and outer wall.
4. modular radial dedusting Benitration reactor according to claim 2, it is characterised in that if radial direction denitration bed is adopted With cover type structure, it is shaped as cylinder barrel shaped, and one dust-removal cloth-bag of each radial direction denitration bed correspondence, radial direction denitration bed is set Between card and soot blowing pipeline, cover is buckled on card, and directly over the sack of dust-removal cloth-bag, the radial direction denitration bed Including inwall and outer wall, the inwall is netted with outer wall, and for denitrating flue gas is equipped between the inwall and outer wall Granular catalyst.
5. modular radial dedusting Benitration reactor according to claim 2, it is characterised in that if radial direction denitration bed is adopted Surface structure is found with bin, it is panel-shaped, be vertically positioned at the position of bin and the outlet close to flue gas, its left and right two Plane is netted, and the pellet type catalyst for denitrating flue gas is equipped between two planes.
6. modular radial dedusting Benitration reactor according to claim 2, it is characterised in that if radial direction denitration bed is adopted With bin tiling type structure, it is panel-shaped, and is placed in the form of tiling above soot blowing pipeline, and two each planes are equal above and below it To be netted, and the pellet type catalyst for denitrating flue gas is equipped between two planes.
7. modular radial dedusting Benitration reactor according to claim 1, it is characterised in that the bin lower end is provided with Ash bucket.
CN201710352740.5A 2017-05-18 2017-05-18 A kind of modular radial dedusting Benitration reactor Pending CN106964213A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107497391A (en) * 2017-10-10 2017-12-22 安徽晨晰洁净科技有限公司 A kind of Novel denitration catalyst module component
CN109954404A (en) * 2019-04-24 2019-07-02 福建龙净环保股份有限公司 SCR denitration system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08196830A (en) * 1995-01-31 1996-08-06 Babcock Hitachi Kk Bag filter medium
CN201371041Y (en) * 2009-02-20 2009-12-30 西安交通大学 Flue gas dust-removing and denitrifying device
CN204768274U (en) * 2015-06-19 2015-11-18 安徽水利水电职业技术学院 Burn integrative cooling dust removal purification device of dioxin waste gas
CN205127751U (en) * 2015-10-27 2016-04-06 展宗城 Remove dust and denitration integrated device
CN205461451U (en) * 2016-01-18 2016-08-17 莆田市圣元环保电力有限公司 Dust remover increase -volume device
CN106110850A (en) * 2016-08-12 2016-11-16 浙江富春江环保热电股份有限公司 A kind of flue gas pollutant minimum discharge system and method
WO2017005679A1 (en) * 2015-07-08 2017-01-12 Lab Sa Device for cleaning fumes including a bagfilter and a catalyst
CN206778067U (en) * 2017-05-18 2017-12-22 安徽晨晰洁净科技有限公司 A kind of modular radial dedusting Benitration reactor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08196830A (en) * 1995-01-31 1996-08-06 Babcock Hitachi Kk Bag filter medium
CN201371041Y (en) * 2009-02-20 2009-12-30 西安交通大学 Flue gas dust-removing and denitrifying device
CN204768274U (en) * 2015-06-19 2015-11-18 安徽水利水电职业技术学院 Burn integrative cooling dust removal purification device of dioxin waste gas
WO2017005679A1 (en) * 2015-07-08 2017-01-12 Lab Sa Device for cleaning fumes including a bagfilter and a catalyst
CN205127751U (en) * 2015-10-27 2016-04-06 展宗城 Remove dust and denitration integrated device
CN205461451U (en) * 2016-01-18 2016-08-17 莆田市圣元环保电力有限公司 Dust remover increase -volume device
CN106110850A (en) * 2016-08-12 2016-11-16 浙江富春江环保热电股份有限公司 A kind of flue gas pollutant minimum discharge system and method
CN206778067U (en) * 2017-05-18 2017-12-22 安徽晨晰洁净科技有限公司 A kind of modular radial dedusting Benitration reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107497391A (en) * 2017-10-10 2017-12-22 安徽晨晰洁净科技有限公司 A kind of Novel denitration catalyst module component
CN109954404A (en) * 2019-04-24 2019-07-02 福建龙净环保股份有限公司 SCR denitration system

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