CN107854980A - A kind of system for removing lead-zinc smelting flue gas nitrogen oxide - Google Patents
A kind of system for removing lead-zinc smelting flue gas nitrogen oxide Download PDFInfo
- Publication number
- CN107854980A CN107854980A CN201711323631.7A CN201711323631A CN107854980A CN 107854980 A CN107854980 A CN 107854980A CN 201711323631 A CN201711323631 A CN 201711323631A CN 107854980 A CN107854980 A CN 107854980A
- Authority
- CN
- China
- Prior art keywords
- ammoniacal liquor
- flue gas
- spray gun
- zinc smelting
- nitrogen oxide
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
- G05D11/138—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture by sensing the concentration of the mixture, e.g. measuring pH value
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of system for removing lead-zinc smelting flue gas nitrogen oxide, belong to nonferrous smelting, chemical industry, environmental technology field, the present invention includes ammoniacal liquor storage system, ammoniacal liquor sprays into regulating system, monitoring system, ammoniacal liquor storage system includes ammoniacal liquor station, ammoniacal liquor intermediate storage tank, ammoniacal liquor station is connected by pipeline with ammoniacal liquor intermediate storage tank, ammoniacal liquor, which sprays into regulating system, includes jet pump, control valve I, flow transmitter, air accumulator, control valve II, spray gun, and spray gun is symmetricly set in 700~1000 DEG C of regions of metallurgical furnace flue；Monitoring system includes PLC control cabinet, touch-screen, nitrogen oxides detection means, and nitrogen oxides detection means is in metallurgical furnace flue；The present invention is that have the characteristics that process unit is reliable and stable, automaticity is high, production cost is low, strong adaptability, can effectively remove the nitrogen oxides in lead-zinc smelting flue gas, realizes non-ferrous metal metallurgy flue gas nitrogen oxide content qualified discharge.
Description
Technical field
The invention belongs to nonferrous smelting, chemical industry, environmental technology field, specifically, is related to a kind of removing lead-zinc smelting cigarette
The system of gas nitrogen oxides.
Background technology
Nitrogen oxides (NOX) it is to cause one of primary pollution source of atmosphere pollution, its harm mainly includes：①NOXTo human body
And the intoxicating effect of animal；2. to the detrimental effect of plant；③NOXIt is one of the main reason for forming acid rain, acid mist；④NOXWith
Hydrocarbon forms photochemical fog；⑤NOXAlso the destruction of ozone layer is participated in.
Because there is the presence in farmland, resident family on geographical position periphery residing for metallurgical furnace tail gas funnel, environmental protection pressure is caused to aggravate, and
There is national environmental protection new policy：《The Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution》In the 43rd article require and《Lead, zinc work
Industry pollutant emission standard》(GB25466-2010) 100mg/ is required to the control of Air Pollutant Emission limit value nitrogen oxides in
m3.And the country is administered also in conceptual phase in lead-zinc smelting enterprise nitrogen oxides in effluent at present, tail gas index can not be ensured
Discharged better than national standard.
The content of the invention
In order to overcome problem present in background technology, the invention provides one kind to remove lead-zinc smelting flue gas nitrogen oxide
System, have the characteristics that device is reliable and stable, automaticity is high, production cost is low, strong adaptability, can effectively remove lead zinc
Nitrogen oxides in flue gas during smelting, realize non-ferrous metal metallurgy flue gas nitrogen oxide content qualified discharge.
To achieve the above object, the present invention is achieved through the following technical solutions：
The system of described removing lead-zinc smelting flue gas nitrogen oxide includes ammoniacal liquor storage system, ammoniacal liquor sprays into regulation system
System, monitoring system, the ammoniacal liquor storage system include ammoniacal liquor station 1, ammoniacal liquor intermediate storage tank 2, and the ammoniacal liquor station 1 passes through pipeline and ammonia
Water intermediate storage tank 2 is connected, and ammonium hydroxide delivery pump 3 is provided between ammoniacal liquor station 1 and ammoniacal liquor intermediate storage tank 2；The ammoniacal liquor sprays into regulation
System includes jet pump 4, control valve I 5, flow transmitter 6, air accumulator 7, control valve II 8, spray gun 9, the ammoniacal liquor intermediate storage tank
2 are connected by ammoniacal liquor delivery pipe 10 with spray gun 9, and jet pump 4, control valve I 5, stream are sequentially provided with the ammoniacal liquor delivery pipe 10
Transmitter 6；Reflux line 11 is additionally provided between the flow transmitter 6 and ammoniacal liquor intermediate storage tank 2；The air accumulator 7 passes through
Compressed air hose 12 is connected with spray gun 9, and the compressed air hose 12 is provided with control valve II 8；The spray gun 9 is symmetricly set in
In 700~1000 DEG C of regions of metallurgical furnace flue；The monitoring system includes PLC control cabinet 13, touch-screen 14, nitrogen oxides detection
Device 15, the nitrogen oxides detection means 15 in the metallurgical furnace flue, the PLC control cabinet 13 respectively with touch-screen 14,
Nitrogen oxides detection means 15, flow transmitter 6, ammonium hydroxide delivery pump 3, jet pump 4, control valve I 5, control valve II 8 electrically connect
Connect.
Further, it is provided with liquid level gauge 16 in the ammoniacal liquor intermediate storage tank 2.
Further, the ammonium hydroxide delivery pump 3 is low discharge, high lift pump.
Further, the emitted dose of the jet pump 4 is 0~5m3/h。
Further, the ammoniacal liquor, which sprays into regulating system, also includes manually-operated gate, local metering valve and for adjusting manually
Save the needle-valve of the single flow of spray gun 9.
Further, the gun body of the spray gun 9 is socket type structure, and the nozzle of spray gun 9 is the atomization structure of internal-mixing, spray
The outer wall of rifle 9 has antifriction alloy using Ultrasonic Arc Sprayed, and its outside is provided with carborundum sleeve pipe.
Further, the spray gun 9 is provided with electric plating propulsion.
Beneficial effects of the present invention：
1st, the monitoring nitrogen oxide device that the present invention installs according to system monitors the feedback of result on-line, when nitrogen oxides surpasses
Cross 100mg/m3When automatic running and according to content height adjust automatically ammonia water spray amount, when nitrogen oxides is less than control standard
Denitrification apparatus is automatically stopped by control system, reduces ammoniacal liquor usage amount, remaining ammoniacal liquor is returned among ammoniacal liquor by reflux line
It is standby in storage tank.Meanwhile the present invention can realize interruption in metallurgical furnace fusion process, continuously adjust ammoniacal liquor straying quatity；Tool exists
Operation, control is easy, centralized automatic control can be achieved.Nitrogen oxides field in non-ferrous metal metallurgy industry improvement flue gas,
The appearance of the present invention serves leading action.
2nd, spray gun is located at the optimal denitration reaction temperature province of metallurgical furnace flue gas pipeline, i.e. metallurgical furnace flue by the present invention
In 700~1000 DEG C of regions, reduce the investment cost that low-temperature zone denitration needs additionally increase catalyst-assembly, item is greatly reduced
Mesh is invested.
3rd, 0~1000mg/m of pyrometallurgical smelting of lead nitrogen oxides in effluent content range3, by the present invention in pyrometallurgical smelting of lead flue gas
Actual motion effect in denitration, its denitration efficiency can reach more than 85%, and it has technique and equips reliable and stable, automation
The advantages such as degree is high, production cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of monitoring system of the present invention；
Fig. 3 is the structural representation of spray gun.
In figure, 1- ammoniacal liquor station, 2- ammoniacal liquor intermediate storage tank, 3- ammonium hydroxide delivery pumps, 4- jet pumps, 5- control valves I, 6- flows become
Send device, 7- air accumulators, 8- control valves II, 9- spray guns, 10- ammoniacal liquor delivery pipe, 11- reflux lines, 12 compressed air hoses, 13-PLC
Switch board, 14- touch-screens, 15- nitrogen oxides detection means, 16- liquid level gauges.
Embodiment
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, below in conjunction with accompanying drawing, to the present invention
Preferred embodiment be described in detail, to facilitate the technical staff to understand.
The system of described removing lead-zinc smelting flue gas nitrogen oxide includes ammoniacal liquor storage system, ammoniacal liquor sprays into regulation system
System, monitoring system；The ammoniacal liquor storage system includes ammoniacal liquor station 1, ammoniacal liquor intermediate storage tank 2, and the ammoniacal liquor station 1 passes through pipeline and ammonia
Water intermediate storage tank 2 is connected, and ammonium hydroxide delivery pump 3 is provided between ammoniacal liquor station 1 and ammoniacal liquor intermediate storage tank 2；The ammoniacal liquor intermediate storage tank 2
It is interior to be provided with liquid level gauge 16, the ammonia vol in ammoniacal liquor intermediate storage tank 2 can be monitored at any time；The ammonium hydroxide delivery pump 3 is low discharge, soared
Journey pump.The supply of ammoniacal liquor can meet the requirement of metallurgical furnace different load, easy to adjust, flexible, reliable.
The ammoniacal liquor, which sprays into regulating system, includes jet pump 4, control valve I 5, flow transmitter 6, air accumulator 7, control valve II
8th, spray gun 9, the ammoniacal liquor intermediate storage tank 2 are connected by ammoniacal liquor delivery pipe 10 with spray gun 9, in the ammoniacal liquor delivery pipe 10 successively
Provided with jet pump 4, control valve I 5, flow transmitter 6；The emitted dose of the jet pump 4 is 0~5m3/h.The flow transmitter
Reflux line 11 is additionally provided between 6 and ammoniacal liquor intermediate storage tank 2.The air accumulator 7 is connected by compressed air hose 12 with spray gun 9
Logical, the compressed air hose 12 is provided with control valve II 8.Atomizing air is supplied by station-service compressed air, can meet the entrance of spray gun 9
0.3~0.7MPa of air pressure requirement, station-service compressed air using existing air accumulator 7 again by compressed air hose 12 connect into
Enter spray gun 9, to ensure the reliable and stable operation of system.
The spray gun 9 is symmetricly set in 700~1000 DEG C of regions of metallurgical furnace flue.700~1000 DEG C of metallurgical furnace flue
Region is the optimal denitration reaction temperature province of metallurgical furnace flue gas pipeline, and spray gun is located at this region, and reducing low-temperature zone denitration needs
Additionally to increase the investment cost of catalyst-assembly, project investment is greatly reduced.In order to improve spray field in exhaust gases passes
Coverage simultaneously strengthens mixability, and the nozzle of spray gun 9 is designed as the atomization structure of internal-mixing, utilizes mixing for air and ammoniacal liquor
Mix, be pressurized to improve jet velocity, while atomizing effect is improved, expand spray field spatial distribution scope.Sprayed in internal-mixing
In mouth, air-liquid jet forms uniform blister two phase flow after strong momentum and energy exchange, and bubble is in nozzle mixing chamber
Exit is restricted and extrudes, deforms and rupture, and tear, broken is further formed to neighbouring liquid, in addition, bubble from
Atomizing effect can also be effectively improved by opening the second-time breakage after spout, and two phase flow ultimately forms satisfaction atomization after spout is left and required
Spray field.
The gun body of the spray gun 9 is socket type structure, and different medium connects from the interface of afterbody, each pipe of spray gun 9
The material in road selects 316L (310S) steel alloy.The outer wall of spray gun 9 has antifriction alloy using Ultrasonic Arc Sprayed, improves spray
The wearability of emitter.Method on the outside of gun body walks inner side using ammonia spirit, compressed air is walked carries out thermal protection, while in spray gun
9 outsides install carborundum sleeve pipes additional, flow cooling air between carborundum sleeve pipe and spray gun 9, the overall thermal protection for improving equipment and
Wearability.Spray gun 9 adapts to the ammoniacal liquor flow of various concentrations, can also keep excellent atomization to imitate when changes in flow rate amplitude is larger
Fruit, while avoid secondary pollution caused by excessive spray ammonia.The spray gun 9 is provided with electric plating propulsion, in case of emergency can be with
Automatically exit from stove, it is ensured that the security of spray gun, improve system global reliability and service life.
The ammoniacal liquor, which sprays into regulating system, also includes manually-operated gate, local metering valve and for adjusting single spray gun manually
The needle-valve of 9 flows.
The monitoring system includes PLC control cabinet 13, touch-screen 14, nitrogen oxides detection means 15, the nitrogen oxides
Detection means 15 is in metallurgical furnace flue, the amount of nitrogen oxides of energy real-time online detection metallurgical furnace flue gas.The PLC controls
Cabinet 13 respectively with touch-screen 14, nitrogen oxides detection means 15, flow transmitter 6, ammonium hydroxide delivery pump 3, jet pump 4, control valve I
5th, control valve II 8 is electrically connected with.
The course of work of the present invention：
The real-time online of nitrogen oxides detection means 15 detects the amount of nitrogen oxides of metallurgical furnace flue gas, and testing number factually
When be sent to PLC control cabinet 13.Parameter setting is carried out to PLC control cabinet 13, as parameter is arranged to amount of nitrogen oxides standard control
Value 100mg/m processed3.When nitrogen oxides in effluent content detection value is above standard controlling value 100mg/m3When, nitrogen oxides detection dress
Put 15 and signal is communicated to PLC control cabinet 13, automatic start ammonium hydroxide delivery pump 3, jet pump 4 are the ammoniacal liquor in ammoniacal liquor medial launder 2
Spray gun 9 is delivered to, tilts down to spurt into flue with mist and completes to react with flue gas, and controlled by PLC control cabinet 13
Control valve I 5, control valve II 8 adjust ammonia water spray amount；When nitrogen oxides in effluent content detection value is less than controlling value 100mg/m3
When, system is automatically stopped equipment, and remaining ammoniacal liquor is returned to standby in ammoniacal liquor intermediate storage tank by reflux line.
Present invention actual motion in pyrometallurgical smelting of lead denitrating flue gas operates, and removal effect is shown in Table 1.
The flue gas of table 1 removing contrast table (%)
By actual motion effect of the present invention in pyrometallurgical smelting of lead denitrating flue gas, its denitration efficiency can reach 85% with
On, it has technique and equips the advantages such as reliable and stable, automaticity is high, production cost is low.The present invention is to administering nitrogen oxidation
Ammoniacal liquor needed for thing uses, from the 5~6m at the initial stage of implementation3/ d is reduced to 2~3m of stability contorting3/ d, has saved ammonia vol.
The present invention makes full use of the existing installations and facilities of factory and raw material, to fire according to domestic existing denitrating technique
Nitrogen oxides in the flue gas of method refining lead carries out denitration improvement, it is ensured that tail gas index is discharged better than national standard.The present invention has
The features such as device is reliable and stable, automaticity is high, production cost is low, strong adaptability, can effectively it remove in lead-zinc smelting flue gas
Nitrogen oxides, realize non-ferrous metal metallurgy flue gas nitrogen oxide content qualified discharge.
Finally illustrate, preferred embodiment above is merely to illustrate technical scheme and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (7)
- A kind of 1. system for removing lead-zinc smelting flue gas nitrogen oxide, it is characterised in that：Described removing lead-zinc smelting flue gas nitrogen The system of oxide includes ammoniacal liquor storage system, ammoniacal liquor sprays into regulating system, monitoring system, and the ammoniacal liquor storage system includes ammonia Water station（1）, ammoniacal liquor intermediate storage tank（2）, the ammoniacal liquor station（1）Pass through pipeline and ammoniacal liquor intermediate storage tank（2）Connection, and ammoniacal liquor station （1）With ammoniacal liquor intermediate storage tank（2）Between be provided with ammonium hydroxide delivery pump（3）；The ammoniacal liquor, which sprays into regulating system, includes jet pump（4）、 Control valve I（5）, flow transmitter（6）, air accumulator（7）, control valve II（8）, spray gun（9）, the ammoniacal liquor intermediate storage tank（2）It is logical Cross ammoniacal liquor delivery pipe（10）With spray gun（9）It is connected, the ammoniacal liquor delivery pipe（10）On be sequentially provided with jet pump（4）, control valve I （5）, flow transmitter（6）；The flow transmitter（6）With ammoniacal liquor intermediate storage tank（2）Between be additionally provided with reflux line（11）；Institute State air accumulator（7）Pass through compressed air hose（12）With spray gun（9）It is connected, the compressed air hose（12）It is provided with control valve II （8）；The spray gun（9）It is symmetricly set in 700~1000 DEG C of regions of metallurgical furnace flue；The monitoring system controls including PLC Cabinet（13）, touch-screen（14）, nitrogen oxides detection means（15）, the nitrogen oxides detection means（15）Located at metallurgical furnace flue It is interior, the PLC control cabinet（13）Respectively with touch-screen（14）, nitrogen oxides detection means（15）, flow transmitter（6）, ammoniacal liquor Delivery pump（3）, jet pump（4）, control valve I（5）, control valve II（8）It is electrically connected with.
- A kind of 2. system for removing lead-zinc smelting flue gas nitrogen oxide according to claim 1, it is characterised in that：The ammonia Water intermediate storage tank（2）It is interior to be provided with liquid level gauge（16）.
- A kind of 3. system for removing lead-zinc smelting flue gas nitrogen oxide according to claim 1, it is characterised in that：The ammonia Water delivery pump（3）For low discharge, high lift pump.
- A kind of 4. system for removing lead-zinc smelting flue gas nitrogen oxide according to claim 1, it is characterised in that：The spray Penetrate pump（4）Emitted dose be 0~5m3/h。
- A kind of 5. system for removing lead-zinc smelting flue gas nitrogen oxide according to claim 1, it is characterised in that：The ammonia Water, which sprays into regulating system, also includes manually-operated gate, local metering valve and for adjusting single spray gun manually（9）The needle-valve of flow.
- A kind of 6. system for removing lead-zinc smelting flue gas nitrogen oxide according to claim 1, it is characterised in that：The spray Rifle（9）Gun body be socket type structure, spray gun（9）Nozzle be internal-mixing atomization structure, spray gun（9）Outer wall use Supersonic Fast electric arc spraying has antifriction alloy, and its outside is provided with carborundum sleeve pipe.
- A kind of 7. system for removing lead-zinc smelting flue gas nitrogen oxide according to claim 1, it is characterised in that：The spray Rifle（9）It is provided with electric plating propulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323631.7A CN107854980A (en) | 2017-12-13 | 2017-12-13 | A kind of system for removing lead-zinc smelting flue gas nitrogen oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323631.7A CN107854980A (en) | 2017-12-13 | 2017-12-13 | A kind of system for removing lead-zinc smelting flue gas nitrogen oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107854980A true CN107854980A (en) | 2018-03-30 |
Family
ID=61706340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711323631.7A Pending CN107854980A (en) | 2017-12-13 | 2017-12-13 | A kind of system for removing lead-zinc smelting flue gas nitrogen oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107854980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449013A (en) * | 2019-07-27 | 2019-11-15 | 河南豫光锌业有限公司 | A method of administering rotary kiln exhaust gas nitrogen oxides |
| CN111603921A (en) * | 2020-06-16 | 2020-09-01 | 云南锡业股份有限公司锡业分公司 | Flue gas denitration system and denitration method for tin smelting furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202683062U (en) * | 2012-07-26 | 2013-01-23 | 北京同方亚热能技术有限公司 | Amino selective non-catalytic reduction (SNCR) flue gas denitration device |
| CN203355595U (en) * | 2013-06-08 | 2013-12-25 | 无锡利保科技发展有限公司 | Self-adaptive aqua ammonia spraying device |
| CN203355592U (en) * | 2013-07-22 | 2013-12-25 | 山东美陵中联环境工程有限公司 | SNCR (Selective Non-Catalytic Reduction)-modularized device for treating flue gas containing nitrogen oxides |
| CN203829905U (en) * | 2014-02-12 | 2014-09-17 | 合肥水泥研究设计院 | Novel automatic denitration system for cement kiln |
| KR101476404B1 (en) * | 2013-08-19 | 2014-12-23 | 한국동서발전(주) | Method for treating scrapped ammonia and system thereof, and ammonia injection system of denitrification apparatus |
| CN204307518U (en) * | 2014-12-11 | 2015-05-06 | 南京西普环保科技有限公司 | A kind of kiln exit gas denitrating system |
| CN206526673U (en) * | 2017-03-03 | 2017-09-29 | 河北绿缘环保科技有限公司 | Denitrification reducing agent automatic regulating system |
-
2017
- 2017-12-13 CN CN201711323631.7A patent/CN107854980A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202683062U (en) * | 2012-07-26 | 2013-01-23 | 北京同方亚热能技术有限公司 | Amino selective non-catalytic reduction (SNCR) flue gas denitration device |
| CN203355595U (en) * | 2013-06-08 | 2013-12-25 | 无锡利保科技发展有限公司 | Self-adaptive aqua ammonia spraying device |
| CN203355592U (en) * | 2013-07-22 | 2013-12-25 | 山东美陵中联环境工程有限公司 | SNCR (Selective Non-Catalytic Reduction)-modularized device for treating flue gas containing nitrogen oxides |
| KR101476404B1 (en) * | 2013-08-19 | 2014-12-23 | 한국동서발전(주) | Method for treating scrapped ammonia and system thereof, and ammonia injection system of denitrification apparatus |
| CN203829905U (en) * | 2014-02-12 | 2014-09-17 | 合肥水泥研究设计院 | Novel automatic denitration system for cement kiln |
| CN204307518U (en) * | 2014-12-11 | 2015-05-06 | 南京西普环保科技有限公司 | A kind of kiln exit gas denitrating system |
| CN206526673U (en) * | 2017-03-03 | 2017-09-29 | 河北绿缘环保科技有限公司 | Denitrification reducing agent automatic regulating system |
Non-Patent Citations (1)
| Title |
|---|
| 毛志伟等: "《氮氧化物减排》", 31 August 2014, 中国建材工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449013A (en) * | 2019-07-27 | 2019-11-15 | 河南豫光锌业有限公司 | A method of administering rotary kiln exhaust gas nitrogen oxides |
| CN111603921A (en) * | 2020-06-16 | 2020-09-01 | 云南锡业股份有限公司锡业分公司 | Flue gas denitration system and denitration method for tin smelting furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107854980A (en) | A kind of system for removing lead-zinc smelting flue gas nitrogen oxide | |
| CN213656765U (en) | Waste incineration power generation system | |
| CN106422772A (en) | Ammonia-water gasification system for SCR flue gas denitration | |
| CN204672469U (en) | A kind of SNCR of being applicable to technique carries out injector and the boiler by spraying structure of denitrating flue gas | |
| CN201560988U (en) | Impeller cleaning device of dust removal fan | |
| CN109603542A (en) | A kind of liquid-phase catalyst spray gun special | |
| CN103949149A (en) | Flue gas denitration equipment | |
| CN108295652A (en) | Carbon rotary kiln flue gas desulfurization and denitrification UTILIZATION OF VESIDUAL HEAT IN integral process and system | |
| CN107158912A (en) | A kind of high-temperature steam is atomized denitrification apparatus | |
| CN212440745U (en) | Flue gas denitration system of tin smelting furnace | |
| CN213101578U (en) | Novel charged atomization denitration spray gun | |
| CN205593390U (en) | Flue gas pipeline cooling system that sprays | |
| CN111228937A (en) | Gas fog circulation sedimentation system for smoke and dust treatment | |
| CN204503392U (en) | For the medicament mixing aerosol spray device of dust treatment | |
| CN205995264U (en) | A kind of front end atomization automatic telescopic spray gun of SNCR system | |
| CN204329646U (en) | For the spray cooling system of cleaner | |
| CN209646243U (en) | A kind of liquid-phase catalyst spray gun special | |
| CN211190682U (en) | Spraying device for converter oxygen lance anti-sticking fire-resistant coating | |
| CN210057883U (en) | Denitration system of dry-method cement rotary kiln | |
| CN209302518U (en) | A kind of denitrification apparatus | |
| CN203750413U (en) | Medium-and-low temperature flue gas denitration device | |
| CN208449035U (en) | A kind of SNCR denitration system | |
| CN207970688U (en) | A kind of Industrial Stoves denitration modernization system | |
| CN206951476U (en) | A kind of gathering line corrosion inhibiter coating device | |
| CN206631438U (en) | The efficient ammonia-gas spraying device of SCR denitration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180330 |
|
| RJ01 | Rejection of invention patent application after publication |