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CN106039946A - An energy-saving environmental friendly system - Google Patents

An energy-saving environmental friendly system Download PDF

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Publication number
CN106039946A
CN106039946A CN201610307072.XA CN201610307072A CN106039946A CN 106039946 A CN106039946 A CN 106039946A CN 201610307072 A CN201610307072 A CN 201610307072A CN 106039946 A CN106039946 A CN 106039946A
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CN
China
Prior art keywords
pipeline
heat
flue
tower
water
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.)
Pending
Application number
CN201610307072.XA
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Chinese (zh)
Inventor
张静
张明宇
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Yunnan Energy Research Institute Co Ltd
Original Assignee
Yunnan Energy Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yunnan Energy Research Institute Co Ltd filed Critical Yunnan Energy Research Institute Co Ltd
Priority to CN201610307072.XA priority Critical patent/CN106039946A/en
Publication of CN106039946A publication Critical patent/CN106039946A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • 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
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/50Sulfur oxides
    • B01D53/501Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • 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
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/56Nitrogen oxides
    • 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
    • B01D53/73After-treatment of removed components
    • 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
    • B01D53/75Multi-step processes
    • 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
    • B01D53/76Gas phase processes, e.g. by using aerosols
    • 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
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact

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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)
  • Dispersion Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

An energy-saving environmental friendly system is disclosed. The system comprises a deoxygenated water pipe, an ozone pipe, an air pipe, an ammonia water supplementing pipe, a process water pipe, a coking flue gas pipe, a desulfurizing tower, a denitration tower, an induced draft fan, a waste heat boiler, a heat storing and dust removing device and a heat-exchange and dust removing device. The desulfurizing tower comprises an absorption segment at the top, a concentrating segment at the middle and a liquid storage tank at the bottom segment. Residual ammonia water of a coking enterprise is utilized for desulfurizing, and therefore the running cost is reduced, ammonium sulfate is produced as a side product, and the economical efficiency is better. Waste heat of the coking flue gas can be recovered to produce low-pressure vapor, and the temperature of the flue gas is reduced to a ranged allowed by wet desulfurizing and denitration processes. Heat and harmful compounds in the flue gas are fully absorbed by water in a first water storage cavity of the heat-exchange and dust removing device, filtered and desulfurized, then the flue gas is discharged through a flue gas discharging port, and the discharged gas is free of dust and smoke.

Description

A kind of energy-conserving and environment-protective system
Technical field
The present invention relates to energy-conserving and environment-protective technical field, specifically a kind of energy-conserving and environment-protective system.
Background technology
In process of factory production, due to reasons such as burning are insufficient, raw material impurity content is high, therefore high temperature furnace is produced Flue gas in usually contain various pollutant, such as sulfur, dust particale etc., be exhausted directly in air cause the biggest pollution.Coking One of important industrial processes, by coal high-temperature retorting in coke oven is produced coke and coal gas, be iron and steel, the energy and The basic industries of chemical industry.Coking produces the high-temp combustion process relating to up to more than 1300 DEG C, can produce substantial amounts of nitrogen oxides, And enter combustor participation burning owing to coking furnace shaft string leakage conductance causes high sulfur-bearing raw coke oven gas, form SO 2 from fume.Coking Produce oneself through becoming one of important Air Pollutant Emission source of China.Along with the new environmental law of China just rose on January 1st, 2015 Formula is implemented, and coking produces and must strictly meet the fume emission national standard limit value that coking produces.
The means such as the cleaning of existing tail gas treatment device many employings cleaning mixture and micronic dust filtration.A class in corresponding tail gas is miscellaneous Matter uses a kind of equipment to be removed, and such as washing is to make tail gas pass through alkaline detergent liquid mist, uses sack cleaner the most again Remove micronic dust.This scheme needs two complete equipments, and, the filter bag loss of sack cleaner is very big, produces dedusting when Another kind of waste.Simultaneously as this type of fume treatment auxiliary often price is higher and power consumption big, increase the production cost of enterprise, A lot of enterprises are to buying and using the enthusiasm of this kind equipment the highest, it is impossible to the effective discharge reducing waste gas, to factory's periphery Environment causes greatly pollution.
Summary of the invention
It is an object of the invention to provide the energy-conserving and environment-protective system of a kind of low cost, simple in construction, to solve above-mentioned background The problem proposed in technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of energy-conserving and environment-protective system, supplements pipeline, fresh water (FW) including deaerated water pipeline, ozone pipeline, air line, ammonia Pipeline, coking flue, desulfurizing tower, denitrating tower, air-introduced machine, waste heat boiler, heat accumulation dust arrester and heat-exchange dedusting device, institute State desulfurizing tower to include being positioned at the absorber portion of top section, being positioned at the enriching section in stage casing and be positioned at the reservoir of end section, described coking flue gas The rear end of pipeline is connected with waste heat boiler by air-introduced machine, and the pipeline at waste heat boiler rear passes through booster fan and is positioned at desulfurizing tower The smoke inlet of the enriching section at middle part is connected, and ozone pipeline exports and bottom denitrating tower with the desulfurization fume at desulfurizing tower top respectively Denitrating tower smoke inlet pipeline be connected, ammonia supplements pipeline and is connected with bottom reservoir, reservoir and ammonium sulfate circulation barrel Road connects, and a wherein pipeline at ammonium sulfate circulating slot rear connects with the top of enriching section, another pipeline and solid-liquid separation Device connects, and the mother solution after solid-liquid separator separates is connected with reservoir by pipeline, the rear end of solid-liquid separator and dehydrate Device is connected, bottom denitrating tower respectively with the mouth spray pipeline at the mouth spray of the apical sink section of desulfurizing tower and denitrating tower top even Connecing, the port of export of deaerated water pipeline is connected with waste heat boiler, and low-pressure steam pipe network is accessed at the rear of waste heat boiler, air line and Ammonia supplements pipeline and is respectively connected to the bottom of reservoir, and reservoir is connected with absorber portion by pipeline, the outlet of fresh water (FW) pipeline Terminate the top into absorber portion;The top of described denitrating tower is provided with denitration exhanst gas outlet, and the middle part of heat accumulation dust arrester is set to First water storage cavity, offers flue in the first water storage cavity body, the top of heat accumulation dust arrester is provided with flue entrance, institute Stating denitration exhanst gas outlet and connect described flue entrance, the bottom of heat accumulation dust arrester is provided with flue outlet, flue entrance and cigarette Road outlet is connected to flue, and the bottom of heat accumulation dust arrester is provided with valve, and top is provided with rinse mouth, and described heat exchange removes Being the second water storage cavity in dirt device, the flue connected with the flue outlet of heat accumulation dust arrester stretches into the end of the second water storage cavity Portion, the top of described heat-exchange dedusting device is provided with fume emission outlet, and the bottom of heat-exchange dedusting device is provided with valve, top It is provided with water inlet;The rear end of described heat-exchange dedusting device is additionally provided with boiler feed water pipeline, and boiler feed water pipeline stretches into heat exchange Dust arrester also connects, on boiler feed water pipeline with the first water storage cavity of heat accumulation dust arrester after stretching out heat-exchange dedusting device It is provided with circulating pump.
As the further scheme of the present invention: be provided with liquid at the bottom of liquid bath between described reservoir and ammonium sulfate circulating slot and connect Pipe.
As the further scheme of the present invention: be provided with liquid at the bottom of liquid stream section between described enriching section and ammonium sulfate circulating slot even Adapter.
As the further scheme of the present invention: between bottom and the absorber portion at desulfurizing tower top of described denitrating tower, house friend is de- Nitre tower bottom connecting tube.
As the further scheme of the present invention: be provided with denitration absorbing liquor between bottom and the top spray portion of described denitrating tower Connecting tube, and it is provided with urea liquid storage tank in this denitration absorbing liquor connecting tube.
As the present invention further scheme: the described boiler feed water pipeline stretched in heat-exchange dedusting device is helically Shape or U-shape arrangement.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention utilizes the remained ammonia of coal chemical enterprise to carry out desulfurization, reduces operating cost, and output sulphuric acid hinge is as secondary Product, has more preferable economy, recyclable waste heat of coking smoke, produces low-pressure steam, and the temperature of flue gas is reduced to In the allowed band of wet desulphurization and denitration process, flue gas institute's heat content and harmful substance are by the first water storage of heat-exchange dedusting device Moisture in cavity all absorbs, filters, desulfurization, is then discharged by fume emission mouth, and discharge is smoke dust gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Referring to Fig. 1, a kind of energy-conserving and environment-protective system, including deaerated water pipeline 13, ozone pipeline 14, air line 15, ammonia Water supplements pipeline 16, fresh water (FW) pipeline 17, coking flue 18, desulfurizing tower 4, denitrating tower 5, air-introduced machine 1, waste heat boiler 2, storage Hot dust arrester 10 and heat-exchange dedusting device 20, described desulfurizing tower 4 includes being positioned at the absorber portion 43 of top section, being positioned at the concentration in stage casing Section 42 and the reservoir 41 being positioned at end section, the rear end of described coking flue 18 is connected with waste heat boiler 2 by air-introduced machine 1, The pipeline at waste heat boiler 2 rear is connected with the smoke inlet of the enriching section 42 being positioned in the middle part of desulfurizing tower 4 by booster fan 3, smelly Oxygen pipeline 14 exports the denitrating tower smoke inlet pipeline 52 bottom 47 and denitrating tower 5 with the desulfurization fume at desulfurizing tower 4 top respectively Being connected, ammonia supplements pipeline 16 and is connected bottom reservoir 41, and reservoir 41 is connected with ammonium sulfate circulating slot 6 pipeline, ammonium sulfate A wherein pipeline at circulating slot 6 rear connects with the top of enriching section 42, and another pipeline is connected with solid-liquid separator 7, Gu Mother solution after liquid/gas separator 7 separates is connected with reservoir 41 by pipeline, the rear end of solid-liquid separator 7 and dewatering dryer 8 phase Even, bottom denitrating tower 5 respectively with the mouth spray pipeline at the mouth spray of the apical sink section 43 of desulfurizing tower 4 and denitrating tower 5 top even Connecing, the port of export of deaerated water pipeline 13 is connected with waste heat boiler 2, and low-pressure steam pipe network 11, air are accessed in the rear of waste heat boiler 2 Pipeline 15 and ammonia supplement pipeline 16 and are respectively connected to the bottom of reservoir 41, and reservoir 41 is connected with absorber portion 43 by pipeline, The port of export of fresh water (FW) pipeline 17 accesses the top of absorber portion 43;The top of described denitrating tower 5 is provided with denitration exhanst gas outlet 53, storage The middle part of hot dust arrester 10 is set to the first water storage cavity 31, offers flue 32, heat accumulation in the first water storage cavity 31 The top of dust arrester 10 is provided with flue entrance 33, and described denitration exhanst gas outlet 53 connects described flue entrance 33, and heat accumulation removes The bottom of dirt device 10 is provided with flue outlet 34, flue entrance 33 and flue outlet 34 and is connected to flue 37, and heat accumulation removes The bottom of dirt device 3 is provided with valve 35, and top is provided with rinse mouth 36, is the second water storage cavity in described heat-exchange dedusting device 20 Body 21, the flue 37 connected with the flue outlet 34 of heat accumulation dust arrester 10 stretches into the bottom of the second water storage cavity 21, described in change The top of hot dust arrester 20 is provided with fume emission outlet 22, and the bottom of heat-exchange dedusting device 20 is provided with valve 23, top It is provided with water inlet 24;The rear end of described heat-exchange dedusting device 20 is additionally provided with boiler feed water pipeline 25, boiler feed water pipeline 25 After stretching into heat-exchange dedusting device 20 and stretching out heat-exchange dedusting device 20, the first water storage cavity 31 with heat accumulation dust arrester 10 connects, Boiler feed water pipeline 25 is provided with circulating pump 26.
Liquid connecting tube 44 at the bottom of liquid bath, described enriching section 42 He it is provided with between described reservoir 41 and ammonium sulfate circulating slot 6 Liquid connecting tube 45 at the bottom of liquid stream section it is provided with, the bottom of described denitrating tower 5 and the suction at desulfurizing tower 4 top between ammonium sulfate circulating slot 6 Receive connecting tube 46 bottom the friendly denitrating tower of house between section 43, be provided with denitration between bottom and the top spray portion of described denitrating tower 5 and inhale Receive liquid connecting tube 51, and be provided with urea liquid storage tank 9 in this denitration absorbing liquor connecting tube 51, in order to accelerate heat exchange efficiency, In the shape of a spiral or U-shape is arranged to stretch into the boiler feed water pipeline 25 in heat-exchange dedusting device 20.
In use, the coking from coke oven flue produces flue gas and sends into waste heat through air-introduced machine 1 described energy-conserving and environment-protective system Boiler 2, is down to about 160 DEG C by flue-gas temperature from 300 DEG C, Mist heat recovering output low-pressure steam, enters low pressure steam pipe Net 11, the flue gas after waste heat recovery is through booster fan 3, through flue gas input channel, with ozone pipeline 14 before entering desulfurizing tower 4 Converging, the part nitric oxide in flue gas and ozone fast reaction, generate nitrogen dioxide, flue gas sends into desulfurization after mixing with ozone Tower enriching section 42;
In sulfur removal technology, in enriching section, the solution of the liquid containing ammonium sulfate sent here through circulating pump from ammonium sulfate circulating slot 6 from Enriching section 42 top spray, the heat smoke counter current contacting with about 160 DEG C evaporates the moisture in spray liquid, it is achieved ammonium sulfate Concentrating, enriching section bottom liquid delivers to sulphuric acid by circulating slot 6, through spray-evaporation-concentration repeatedly, by ammonium sulfate storage tank 6 Ammonium sulfate solid content brings up to more than 5%, and discharging is to solid-liquid separator 7, and through drying and dehydrating, output ammonium sulfate solids, wraps Dress outward transport, the mother solution obtained after solid-liquid separation, it is back to desulfurizing tower reservoir 41, after completing discharging, from desulfurizing tower 4 liquid storage every time Liquid storage is delivered to ammonium sulfate circulating slot 6 by groove, and the flue-gas temperature through enriching section is down to about 65 DEG C from 160 DEG C, enters through gas cap To the absorber portion of desulfurizing tower 4, and the desulfurization absorbing liquid counter current contacting of top spray, in the great turbulence level state that booster fan is formed Under complete mass transfer desulfurization, simultaneously the nitric oxide in flue gas and nitrogen dioxide and desulfurizing tower 4 top spray from denitrating tower 5 tower The end containing carbamide residual liquid counter current contacting, it is achieved pre-denitration, the liquid bottom absorber portion 43 is flowed to bottom desulfurizing tower 4 by back of pipeline Reservoir 41.In order to recover the absorbability of absorbing liquid, add the supplementary ammonia of content about 10%, make the pH value of absorbing liquid Control about 5.5.Desulfurizing tower 4 top can spray process water, keep reservoir 41 liquid level in the reasonable scope.Reservoir Blast air bottom 414, be ammonium sulfate by the part sulfite oxidation in reservoir 41.Between reservoir 41 and enriching section 42 The enriching section directed the air into by air line, regulation air capacity and air pressure, change the degree of oxidation.
In denitrating technique, the flue after desulfurizing tower 4 pushes up desulfurization is connected with ozone pipeline 14,60 DEG C after desulfurization Ozone mixed in the flue gas of left and right, the part nitric oxide in flue gas and ozone fast reaction, generate nitrogen dioxide, controls dioxy Change nitrogen and nitric oxide ratio is 1:1.Flue gas enter denitrating tower 5 bottom, with denitrating tower 5 top spray containing urea liquid adverse current Contact, completes denitration.Bottom denitrating tower 5, residual liquid is pumped to top, suitably replenish new urea liquid by circulating pump repeatedly To keep the urea concentration of denitration absorbing liquor more than 10%.Part residual liquid bottom denitrating tower 5 delivers to desulfurizing tower 4 top spray, Realize pre-denitration and the excessive moisture that denitration produces is supplemented to desulfurizing tower 4, reaching the flue gas of environmental emission standard at denitrating tower Top enters air.
When the flue dust in heat accumulation dust arrester 3 is saved bit by bit more, then open bottom valve 35, flue dust is discharged, meanwhile, can Rinse mouth 36 at top is passed through water source and is rinsed, and the sewage of flushing is processed by sewage-treatment plant 40;Flue gas warp After crossing the water purification filter in the second water storage cavity 21, the fume emission offered by heat-exchange dedusting device 20 top exports 22 rows Go out;When the flue dust of the second water storage cavity 21 is saved bit by bit more in heat-exchange dedusting device 20, then open bottom valve 23, will be filled with cigarette The sewage of dirt is discharged, and is processed by sewage-treatment plant, meanwhile, can be in the water inlet at top, 24 are passed through water source rushes Washing, the sewage of flushing is processed by sewage-treatment plant 40.
The present invention utilizes the remained ammonia of coal chemical enterprise to carry out desulfurization, reduces operating cost, and output sulphuric acid hinge is as secondary Product, has more preferable economy, recyclable waste heat of coking smoke, produces low-pressure steam, and the temperature of flue gas is reduced to In the allowed band of wet desulphurization and denitration process, flue gas institute's heat content and harmful substance are by the first storage of heat-exchange dedusting device 10 Moisture in water chamber 31 all absorbs, filters, desulfurization, is then discharged by fume emission mouth, and discharge is smoke dust gas.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment party Formula, in the ken that one skilled in the relevant art is possessed, it is also possible on the premise of without departing from this patent objective Various changes can be made.

Claims (6)

1. an energy-conserving and environment-protective system, it is characterised in that include deaerated water pipeline (13), ozone pipeline (14), air line (15), ammonia supplements pipeline (16), fresh water (FW) pipeline (17), coking flue (18), desulfurizing tower (4), denitrating tower (5), draws Blower fan (1), waste heat boiler (2), heat accumulation dust arrester (10) and heat-exchange dedusting device (20), described desulfurizing tower (4) includes being positioned at Push up the absorber portion (43) of section, be positioned at the enriching section (42) in stage casing and be positioned at the reservoir (41) of end section, described coking flue (18) rear end is connected with waste heat boiler (2) by air-introduced machine (1), and the pipeline at waste heat boiler (2) rear passes through booster fan (3) Be connected with the smoke inlet of enriching section (42) being positioned at desulfurizing tower (4) middle part, ozone pipeline (14) respectively with desulfurizing tower (4) top Desulfurization fume outlet (47) and denitrating tower (5) bottom denitrating tower smoke inlet pipeline (52) be connected, ammonia supplements pipeline (16) being connected with reservoir (41) bottom, reservoir (41) is connected with ammonium sulfate circulating slot (6) pipeline, ammonium sulfate circulating slot (6) A wherein pipeline at rear connects with the top of enriching section (42), and another pipeline is connected with solid-liquid separator (7), and solid-liquid divides Mother solution after device (7) separates is connected with reservoir (41) by pipeline, the rear end of solid-liquid separator (7) and dewatering dryer (8) be connected, denitrating tower (5) bottom respectively with the mouth spray of the apical sink section (43) of desulfurizing tower (4) and denitrating tower (5) top Mouth spray pipeline connects, and the port of export of deaerated water pipeline (13) is connected with waste heat boiler (2), and the rear of waste heat boiler (2) is accessed Low-pressure steam pipe network (11), air line (15) and ammonia supplement pipeline (16) and are respectively connected to the bottom of reservoir (41), liquid storage Groove (41) is connected with absorber portion (43) by pipeline, and the port of export of fresh water (FW) pipeline (17) accesses the top of absorber portion (43);Institute The top stating denitrating tower (5) is provided with denitration exhanst gas outlet (53), and the middle part of heat accumulation dust arrester (10) is set to the first water storage cavity Body (31), offers flue (32) in the first water storage cavity (31), the top of heat accumulation dust arrester (10) is provided with flue Entrance (33), described denitration exhanst gas outlet (53) connects described flue entrance (33), and the bottom of heat accumulation dust arrester (10) is arranged Flue outlet (34), flue entrance (33) and flue outlet (34) is had to be connected to flue (37), heat accumulation dust arrester (3) Bottom is provided with valve (35), and top is provided with rinse mouth (36), is the second water storage cavity in described heat-exchange dedusting device (20) (21) flue (37), connected with the flue outlet (34) of heat accumulation dust arrester (10) stretches into the end of the second water storage cavity (21) Portion, the top of described heat-exchange dedusting device (20) is provided with fume emission outlet (22), and the bottom of heat-exchange dedusting device (20) sets Being equipped with valve (23), top is provided with water inlet (24);The rear end of described heat-exchange dedusting device (20) is additionally provided with boiler feed water Pipeline (25), boiler feed water pipeline (25) stretches into heat-exchange dedusting device (20) and stretches out heat-exchange dedusting device (20) and remove with heat accumulation afterwards First water storage cavity (31) of dirt device (10) connects, and is provided with circulating pump (26) on boiler feed water pipeline (25).
Energy-conserving and environment-protective system the most according to claim 1, it is characterised in that described reservoir (41) and ammonium sulfate circulating slot (6) liquid connecting tube (44) at the bottom of liquid bath it are provided with between.
Energy-conserving and environment-protective system the most according to claim 1, it is characterised in that state enriching section (42) and ammonium sulfate circulating slot (6) liquid connecting tube (45) at the bottom of liquid stream section it are provided with between.
Energy-conserving and environment-protective system the most according to claim 1, it is characterised in that state bottom and the desulfurizing tower (4) of denitrating tower (5) Connecting tube (46) bottom house friend denitrating tower between the absorber portion (43) at top.
Energy-conserving and environment-protective system the most according to claim 1, it is characterised in that the bottom of described denitrating tower (5) and top spray It is provided with denitration absorbing liquor connecting tube (51) between pouring portion, and in this denitration absorbing liquor connecting tube (51), is provided with urea liquid storage Groove (9).
Energy-conserving and environment-protective system the most according to claim 1, it is characterised in that described stretches in heat-exchange dedusting device (20) Boiler feed water pipeline (25) in the shape of a spiral or U-shape arrangement.
CN201610307072.XA 2016-05-10 2016-05-10 An energy-saving environmental friendly system Pending CN106039946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731618A (en) * 2017-02-14 2017-05-31 哈尔滨蔚蓝环保设备制造有限公司 Boiler SNCR urea method denitrating systems
CN109999635A (en) * 2019-04-30 2019-07-12 山东默锐环境产业股份有限公司 NO in a kind of boiler smokeXSome redox removal methods and removing means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731618A (en) * 2017-02-14 2017-05-31 哈尔滨蔚蓝环保设备制造有限公司 Boiler SNCR urea method denitrating systems
CN109999635A (en) * 2019-04-30 2019-07-12 山东默锐环境产业股份有限公司 NO in a kind of boiler smokeXSome redox removal methods and removing means

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Application publication date: 20161026