CN206240331U - Vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit - Google Patents

Vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit Download PDF

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Publication number
CN206240331U
CN206240331U CN201621078555.9U CN201621078555U CN206240331U CN 206240331 U CN206240331 U CN 206240331U CN 201621078555 U CN201621078555 U CN 201621078555U CN 206240331 U CN206240331 U CN 206240331U
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flue gas
tank body
adsorbent
regenerating unit
single hop
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徐庆余
胡刚
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Huatian Engineering and Technology Corp MCC
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Huatian Engineering and Technology Corp MCC
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Abstract

The utility model discloses a kind of vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit.Described device includes vertical tank body, and blow vent is provided with described tank body upper and lower ends;Adsorbent is provided with described tank body.The utility model can be according to different fume treatment requirements after using present apparatus parallel connection, the regeneration of desulphurization denitration and adsorbent is carried out, whole process active coke adsorbent is fixed in a device, it is not necessary to mobile, a large amount of losses of activated coke are avoided, operating cost is substantially reduced.

Description

Vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit
Technical field
The utility model is related to a kind of vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit.More particularly to ring Protect field in border.
Background technology
Air is the important environmental factor for participating in water and various elements circulation, is most basic environment for the survival of mankind Key element.With the development and the acceleration of process of industrialization of social economy, the burning of a large amount of fossil fuels and the discharge of industrial waste gas, Atmosphere quality is deteriorated increasingly, not only natural, ecological is destroyed, also directly threaten human health and life security.Air In pollutant, that be sequentially badly in need of improvement is SO2, pellet, NOx etc..
The enterprises such as enterprise and thermal power plant such as sintering, pelletizing and coking in iron and steel enterprise generate substantial amounts of flue gas, this Contain substantial amounts of dust, SO to some extent in a little flue gases discharged according to respective production technology2, the harmful substance such as NOx.This A little harmful substances such as can not be removed effectively and qualified discharge, it will form haze weather and acid rain, severe contamination atmospheric environment, from And damage health of masses and life security, it is necessary to thoroughly administer, qualified discharge.
Regarding to the issue above, at present traditional FGD methods up to hundreds of, mainly have circulating fluidized bed dry flue gas desulfurization Technique, magnesium processes sulfur removal technology, semi-dry desulfurizing process, ammonia desulfurizing process etc., although these techniques and technology contribution to the history of are very Greatly, but obvious shortcoming is there is also, the utilization rate of such as desulfuration efficiency and desulfurizing agent is relatively low, and desulfuration byproduct is difficult comprehensive profit With being also easy to produce new pollution, and complex process.
On denitration, the ripe denitration technology of current domestic contrast has SCR (SCR), SNCR (non-selection Property catalysis reduction) two kinds of technology and techniques.
Active coke dry-method desulfuration technology, foreign countries start from and start the sixties in 20th century to develop the technology, and in 70 years 20th century In generation, carries out Industrial demonstration, starts commercial Application the eighties in 20th century.The current technology has been applied to process various industrial waste gases, such as Fire coal boiler fume, sintering device flue gas and flue gas of refuse burning, are related to the multiple industry such as chemical industry, electric power, metallurgy.The base of the technology This method is that activated coke is loaded in adsorption tower, and flue gas is under the suction-operated of activated coke and in finite concentration ammonia atmosphere and work Property burnt catalytic action under (SCR) removing SO2And NOx.The activated coke of adsorption saturation is sent by electronic discharging Starlike valve and transhipment Material chain mat machine is transported to after special regenerator carries out desorption activity recovery and sends into desulfurizing tower treatment flue gas by chain mat machine again.Should Method is exactly in the presence of obvious shortcoming:Activated coke badly broken during physical recycling, waste is big, accounts for wastage in bulk or weight 50%~70%, supplement activated coke amount year greatly, the electric lighting bill is heavy for operating, moves equipment operation maintenance costly.
Utility model content
For drawbacks described above, the utility model provide a kind of activated coke during physical recycling it is damaged less, operating cost Low vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit
To reach above-mentioned purpose, vertical single hop modularization flue gas desulfurization and denitrification of the present utility model absorption/regenerating unit, bag Vertical tank body is included, blow vent is provided with described tank body upper and lower ends;Adsorbent is provided with described tank body.
Preferably, being provided with filter layer between described adsorbent and tank body upper end.
Preferably, setting air inlet Distribution Layer between described adsorbent and tank body lower end.
Preferably, bottom is provided with adsorbent supportive grid in described tank body, described adsorbent is arranged on absorption On agent grid.
Preferably, described tank body includes upper cover, barrel-shaped tank body and low head composition;To just inhaling on described tank body Attached dose of position is provided with manhole.
Preferably, described air inlet Distribution Layer is arranged in the top of the low head, described air inlet Distribution Layer is at least wrapped Include:The distributive lattice screen being distributed by multigroup axially spaced-apart is constituted.
Preferably, described air inlet Distribution Layer also includes being arranged on the air inlet distribution grid branch of the top of low head in tank body Support, described distributive lattice screen is arranged on air inlet distribution grid support frame.
Preferably, described air inlet Distribution Layer includes what is set from the bottom to top:Air inlet distribution grid support frame, air inlet distribution Grid, redistributor support frame and redistributor.
The utility model provides a kind of activated coke and is loaded in adsorbent bed and desorption bed, and absorbing unit and desorption are single in work The method of first mutually switching, the SO in effectively removing flue gas2, NOx, bioxin, fluoride, on the premise of heavy metal, it is to avoid Physics movement attrition and the machine operation equipment of activated coke, greatly reduce operating cost and use and maintenance cost, significantly The operating cost of enterprise is reduced, the unit cost of production can be greatly reduced.Simultaneously because without running device, burnt tank, screening plant With independent regenerator, floor space can reduce suitably.
Brief description of the drawings
Fig. 1 is the vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit front view of embodiment 1;
Fig. 2 is the A-A profiles of Fig. 1;
Fig. 3 is the B-B profiles of Fig. 1.
Specific embodiment
The utility model is further described with reference to Figure of description.
The vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the utility model, including vertical tank body, described Tank body upper and lower ends be provided with blow vent;Adsorbent is provided with described tank body.The vertical single hop modularization of the utility model Flue gas desulfurization and denitrification absorption/regenerating unit can according to different fume treatment requirements by being connected using this modular unit and After parallel connection, the regeneration of desulphurization denitration and adsorbent is carried out, whole process active coke adsorbent is fixed in a device, it is not necessary to moved It is dynamic, it is to avoid a large amount of losses of activated coke, substantially reduce operating cost.
Operation principle of the present utility model is as follows:
SO2Adsorption process:Activated coke desulfurization is a kind of dry FGD process technology of resource.The technology is described Using the activated coke pair with unique absorption and catalytic performance in vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit SO in flue gas2Carry out selective absorption, the SO of ADSORPTION STATE2Oxygen and vapor are oxidized under conditions of existing in the flue gas H2SO4And be stored in activated coke hole, complete flue gas desulfurization.
2SO2+O2+2H2O=2H2SO4
Denitrification process:Enter two sections of vertical absorption/regenerating units by the flue gas after one section of vertical absorption/regenerating unit, Spray into diluted ammonia under the conditions of, the NOx in flue gas occurs under the catalytic action of activated coke SCR reduction reactions generation nitrogen with Water, realizes denitration.
4NO+4NH3+O2=4N2+6H2O
2NO2+4NH3+O2=3N2+6H2O
Desorption process:Activated coke absorption SO in the vertical single hop modularization desulfurization absorption/regenerating unit2Afterwards, adding In the case of heat, its H for being adsorbed2SO4SO is reduced to C (activated coke) reactions2, while activated coke is activated again so as to extensive Multiple its absorption property, recycles.
2H2SO4+ C=2SO2+CO2+2H2O
Whole sweetening process, in this activated coke one in using novel vertical single hop modularization desulfurization absorption/regenerating unit No longer moved after secondary filling, so as to avoid breakage.
The position of correspondence adsorbent is provided with manhole on tank body, the dress of maintenance and active coke adsorbent for device Unload.
Above-mentioned tank body includes upper cover, barrel-shaped tank body and low head composition;The cylinder thin-walled shell knot of the tank body one Structure, its top is equipped with upper cover, and upper cover can both use ellipsoidal head, it would however also be possible to employ conical head, upper cover top Exhanst gas outlet/regeneration gas inlet nipple is installed.Low head is housed below, low head can both use ellipsoidal head, Conical head can be used.Low head lower section is provided with gas approach/regeneration gas outlet nozzle.
Further improved as the utility model, filter layer is provided between described adsorbent and tank body upper end. The filter layer is arranged on adsorbent top, can filter a small amount of broken burnt particulate, it is ensured that discharge exhaust gas dust content is up to standard.Cross Filtering layer can be made up of screen support grid and filter screen.
Further improved as the utility model, bottom is provided with adsorbent supportive grid, institute in described tank body The adsorbent stated is arranged on adsorbent grid.Above-mentioned adsorbent is active coke adsorbent, and active coke adsorbent has low temperature SO in lower absorption flue gas2Ability and under finite concentration ammonia atmosphere catalytic elimination NOx ability, while having power of regeneration.
Further improved as the utility model, air inlet distribution is set between described adsorbent and tank body lower end Layer.Described air inlet Distribution Layer is arranged in the top of the low head, and described air inlet Distribution Layer at least includes:By multigroup axial direction The distributive lattice screen composition being spaced apart.Air inlet distribution grid is made up of multigroup flase floor being distributed at a certain distance, it is described enter Qi leel is arranged on the top of the low head and air inlet distribution grid support frame with grid, to entering the turbulent flow at low head Flue gas carries out preliminary rectification and distribution.Air inlet distribution grid support frame is welded to connect with the tank body inner frame, it is described enter qi leel It is made up of multigroup module with grid, is positioned on air inlet distribution grid support frame, it is not necessary to weld, it is easy for installation, fast.
Further improved as the utility model, described air inlet Distribution Layer includes what is set from the bottom to top:Enter qi leel With grill support frame, air inlet distribution grid, redistributor support frame and redistributor.Above-mentioned redistributor is regularly arranged by multiple Tubular structure composition, the redistributor is arranged on the top of the air inlet distribution grid and redistributor support frame, To carrying out secondary rectification into absorber flue gas, it is ensured that flue gas is uniformly through tank interior activity focus layer.The reallocation Device support frame is welded to connect with the tank body inner frame, it is described enter redistributor be made up of multigroup module, be positioned over redistributor It is easy for installation on support frame, it is not necessary to weld, fast.
For the ease of installing, further improved as the utility model, the undersetting and upper branch are provided with tank body Seat, the undersetting is fixedly connected with external frame, and the upper bracket is connected by elastic device and external frame.
The vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit can as needed be individually for one group, It can be one group with series/parallel.
The vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit production application mistake of above-mentioned the utility model Cheng Wei:In absorption/regenerating unit, contain SO2Flue gas with the harmful substance such as NOx passes sequentially through gas approach, low head, air inlet Distribution grid, redistributor, active coke adsorbent, filter screen, upper cover, exhanst gas outlet, flue gas complete qualified discharge after absorption.Solution Inhale in device, regeneration gas import, upper cover, filter screen, active coke adsorbent, reallocation are passed sequentially through by the regeneration gas for heating Device, air inlet distribution grid, low head, regeneration gas outlet, active coke adsorbent complete desorption, and resolution gas go relieving haperacidity, complete resource Change and utilize.
The course of work of the present utility model is as follows:
Step 1, make vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit be in adsorbed state
Flue gas is set to enter the tank body of vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit by lower blow vent It is interior, due to the active coke adsorbent that presets in tank body, so using the activated coke with unique absorption and catalytic performance to cigarette SO in gas2Carry out selective absorption, the SO of ADSORPTION STATE2Oxygen and vapor are oxidized under conditions of existing in the flue gas H2SO4 is simultaneously stored in activated coke hole;While activated coke adsorption layer is equivalent to high-efficient granule layer filter, in inertial collision With intercept under effect effect, a small amount of dust granules in the flue gas after udst separation different parts inside bed are captured, complete Into flue gas desulfurization and udst separation.Flue gas after purification is discharged by upper vent.
Step 2, make vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit be in reproduced state
Upper vent of the regeneration gas from above tank body enters after making heating, adsorbs SO2Activated coke afterwards, in heating regeneration gas Under heating state, its H2SO for being adsorbed4SO is reduced to C (activated coke) reactions2, while activated coke be activated again so as to Recover its absorption property, recycle.And the flue gas after desorbing is exported by the lower blow vent below tank body, can be used for relieving haperacidity Deng.So, regenerative process is completed.
Step 3, make said process be persistently alternately accomplished i.e. be capable of achieving desulphurization denitration is carried out to flue gas.
The arrangement of vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the present utility model is more flexible, can For absorption SO2, another vertical single hop modularization desulfurization absorption/regenerating unit of arranged in series can be used to remove NOx.It is raw During product, two devices constitute an absorbing unit, while for the absorption of harmful substance;Two devices can also be constituted separately simultaneously One desorption unit, for the activated coke regeneration after adsorption saturation.Absorbing unit and desorption unit mutually switch, and common completion has The removing of evil material and the regeneration cycle of activated coke.
The utility model is further described with reference to embodiment.
Embodiment 1
Embodiment of the present utility model shown in Fig. 1.The vertical single hop modularization flue gas desulfurization and denitrification absorption/regeneration of the present embodiment Device includes the gas approach/regeneration gas outlet 1, low head 2, the air inlet distribution grid support frame 3, air inlet distributive lattice that are sequentially connected Grid 4, redistributor support frame 5, undersetting 6, redistributor 7, adsorbent supportive grid 8, tank body 9, screen support grid 11, filter Net 12, upper bracket 13, upper cover 14, exhanst gas outlet/regeneration gas import 15, manhole 16.
Specifically part annexation is:The lower end of the tank body 9 is welded to connect with low head 2, the upper end of the tank body 9 It is welded to connect with upper cover 14, the gas approach/regeneration gas outlet 1 is welded to connect in the bottom of low head 2, and the flue gas goes out Mouth/regeneration gas import 15 is welded to connect in the top of upper cover 14, the bottom for stating tank body 9 be sequentially installed with from top to bottom into Qi leel matches somebody with somebody grill support frame 3, air inlet distribution grid 4, redistributor support frame 5, redistributor 7, adsorbent supportive grid 8, institute The top for stating tank body 9 is provided with screen support grid 11, filter screen 12, and the outer lower portion of the tank body 9 is provided with undersetting 6, The outer upper of the tank body 9 is provided with upper bracket 13.Active coke adsorbent is filled with the housing of the tank body 9.
The maintenance of the vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the present embodiment and adsorbent for convenience Filling, be additionally provided with upper and lower part manhole 16.
The vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the present embodiment when in use, the flue gas is entered Mouth/regeneration gas outlet 1 passes through flange or is welded to connect with outside smoke inlet pipe road or regeneration gas outlet conduit, by the flue gas Outlet/regeneration gas import 15 passes through flange or is welded to connect with outside flue gas outlet pipe or regeneration gas inlet pipeline.
Associated components material therefor is adopted in the vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the utility model With 316L or other high temperature resistants and resistant material, miscellaneous part main material can use austenitic stainless steel or carbon steel material.
The vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the present embodiment has the advantages that:
1st, the vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the utility model can be according in industrial production The content of harmful substances from flue gases and the concrete condition of exhaust gas volumn carry out modular connection in series-parallel combination, it is possible to achieve and absorption/again The modularization of generating apparatus, has the advantages that specific aim is good, flexible.
2nd, the vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit of the utility model is in desulfurization and adsorbent reactivation During active coke adsorbent one-time pad in a device, recycle, in the absence of the physics movement of activated coke, it is to avoid work Property burnt a large amount of losses, compared with traditional activated burnt desulfurization, operating cost is substantially reduced.
3rd, the vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit production application process of the utility model For:In absorption/regenerating unit, contain SO2Qualified discharge after absorption is completed with the flue gas of the harmful substance such as NOx.Simultaneously in desorption In device, through heating regeneration gas by completing desorption after the active coke adsorbent of adsorption saturation, the regeneration gas after parsing is gone Relieving haperacidity workshop section, completes recycling, is produced without secondary waste.
More than, preferred embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto, and appoints What those familiar with the art the change that can readily occur in or replaces in the technical scope that the utility model is disclosed Change, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim The protection domain for being defined is defined.

Claims (8)

1. a kind of vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit, it is characterised in that:
Including vertical tank body, blow vent is provided with described tank body upper and lower ends;
Adsorbent is provided with described tank body.
2. vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit as claimed in claim 1, it is characterised in that: Filter layer is provided between described adsorbent and tank body upper end.
3. vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit as claimed in claim 1, it is characterised in that: Air inlet Distribution Layer is set between described adsorbent and tank body lower end.
4. vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit as claimed in claim 1, it is characterised in that: Bottom is provided with adsorbent supportive grid in described tank body, and described adsorbent is arranged on adsorbent grid.
5. vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit as claimed in claim 1, it is characterised in that:Institute The tank body stated includes upper cover, barrel-shaped tank body and low head composition;The position of correspondence adsorbent is provided with described tank body Manhole.
6. vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit as claimed in claim 1, it is characterised in that:Institute The air inlet Distribution Layer stated is arranged in the top of the low head, and described air inlet Distribution Layer at least includes:By multigroup axially spaced-apart The distributive lattice screen composition of distribution.
7. vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit as claimed in claim 6, it is characterised in that:Institute The air inlet Distribution Layer stated also includes being arranged on the air inlet distribution grid support frame of the top of low head in tank body, described distributive lattice Screen is arranged on air inlet distribution grid support frame.
8. vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit as claimed in claim 6, it is characterised in that:Institute The air inlet Distribution Layer stated includes what is set from the bottom to top:Air inlet distribution grid support frame, air inlet distribution grid, redistributor support Frame and redistributor.
CN201621078555.9U 2016-09-23 2016-09-23 Vertical single hop modularization flue gas desulfurization and denitrification absorption/regenerating unit Active CN206240331U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106563355A (en) * 2016-09-23 2017-04-19 中冶华天南京工程技术有限公司 A vertical type single-segment modularized flue gas desulphurization denitration adsorption/regeneration device
CN108096992A (en) * 2018-01-23 2018-06-01 大连大学 A kind of method for being catalyzed burning removing volatile organic compounds
CN111234885A (en) * 2019-12-30 2020-06-05 上海仅优节能环保科技有限公司 Hot rolling mill gas purification material and device and method for reducing oxidation burning loss of steel billets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106563355A (en) * 2016-09-23 2017-04-19 中冶华天南京工程技术有限公司 A vertical type single-segment modularized flue gas desulphurization denitration adsorption/regeneration device
CN108096992A (en) * 2018-01-23 2018-06-01 大连大学 A kind of method for being catalyzed burning removing volatile organic compounds
CN108096992B (en) * 2018-01-23 2020-06-30 大连大学 Method for removing volatile organic compounds by catalytic combustion
CN111234885A (en) * 2019-12-30 2020-06-05 上海仅优节能环保科技有限公司 Hot rolling mill gas purification material and device and method for reducing oxidation burning loss of steel billets

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