CN110102166A - A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system - Google Patents

A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system Download PDF

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Publication number
CN110102166A
CN110102166A CN201910336657.8A CN201910336657A CN110102166A CN 110102166 A CN110102166 A CN 110102166A CN 201910336657 A CN201910336657 A CN 201910336657A CN 110102166 A CN110102166 A CN 110102166A
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CN
China
Prior art keywords
ammonium hydroxide
sampling
gas
active coke
coke desulphurizing
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
CN201910336657.8A
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Chinese (zh)
Inventor
马广超
何欢
苗霁昶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinxing Ductile Iron Pipes Co Ltd
Original Assignee
Xinxing Ductile Iron Pipes 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 Xinxing Ductile Iron Pipes Co Ltd filed Critical Xinxing Ductile Iron Pipes Co Ltd
Priority to CN201910336657.8A priority Critical patent/CN110102166A/en
Publication of CN110102166A publication Critical patent/CN110102166A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/79Injecting reactants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/20Reductants
    • B01D2251/206Ammonium compounds
    • B01D2251/2062Ammonia

Abstract

The present invention relates to a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling systems, belong to desulphurization denitration technical field.A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system includes ammonia water spraying device, further includes the control system for adjusting the ammonium hydroxide fountain height of ammonia water spraying device;The control system includes the sampling pipe that the sampling probe, gas analyzer and both ends for sampling to sulfur dioxide gas are connect with sampling probe and gas analyzer respectively;The sampling pipe is Constant-temp. pipeline.The present invention achievees the purpose that be precisely controlled ammonia spraying amount by measuring the ingredient of sample gas, so that ammonium hydroxide consumption can also be reduced by meeting while exporting online up to standard, realization cost efficiency.Operation of the present invention is simple, easy to maintain, and service performance is good.

Description

A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system
Technical field
The present invention relates to a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling systems, belong to desulphurization denitration technical field.
Background technique
Active coke desulphurizing denitrification integral process technology at present is sprayed ammonia process using experience on denitrating technique, is existed In order to meet the phenomenon that online blindness up to standard in outlet sprays ammonia, waste ammonium hydroxide, while blindly increasing ammonia spraying amount and also will cause spray ammonia head It is blocked with air-inlet grille, can more seriously cause " coke poisoning " waste activated coke, integrated artistic and sintering production be influenced very big.
Summary of the invention
The object of the present invention is to provide a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling systems, so as to according to the group of gas Divide adjustment ammonium hydroxide fountain height.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system, including ammonia water spraying device further include for adjusting ammonium hydroxide sprinkling dress The control system for the ammonium hydroxide fountain height set;The control system includes sampling probe, the gas for sampling to sulfur dioxide gas The sampling pipe that body analyzer and both ends are connect with sampling probe and gas analyzer respectively;The sampling pipe is constant warm tube Road.
Technical solution of the present invention further improvement lies in that: sampling pipe include gas pipeline, be arranged outside gas pipeline The electric-heating belt of wall and by the insulating layer of electric-heating belt and gas duct wraps.
Technical solution of the present invention further improvement lies in that: protective layer is also set up outside insulating layer.
Technical solution of the present invention further improvement lies in that: further include be arranged on sampling pipe sampling pretreatment dress It sets.
Technical solution of the present invention further improvement lies in that: sampling probe be automatic back blow maintenance type probe.
Technical solution of the present invention further improvement lies in that: condensate liquid is arranged in sample gas condenser in sampling pre-processing device Discharge outlet.
Technical solution of the present invention further improvement lies in that: temperature in sampling pipe is 125 DEG C~200 DEG C.
By adopting the above-described technical solution, the technical effect that the present invention obtains has:
Ammonium hydroxide sprinkling system of the invention can not change sample gas main component by the setting of thermostatic type sampling pipe Under the premise of, it realizes the Accurate Analysis for sample gas, to control the sprinkling flow of ammonium hydroxide based on the analysis results, meets the outlet of sample gas Ammonium hydroxide consumption can also be reduced while online up to standard, realize cost efficiency.
Sample gas pretreatment unit is provided in the present invention, dust, moisture, the tar etc. that can thoroughly remove in flue gas prevent It generates adverse effect to the measurement of instrument itself and instrument, while not changing under test gas component and concentration again.
The mechanism of sampling pipe in the present invention is designed, and gas pipeline is arranged electric-heating belt and by electric-heating belt With the insulating layer of gas duct wraps.Electric-heating belt can carry out heating and thermal insulation to gas pipeline, make to keep permanent in gas pipeline Temperature, insulating layer can prevent the heat loss in gas pipeline, keep temperature as constant as possible.The structure of sampling pipe is to realize The important component of flue gas on-line period and precise measurement.
The present invention can ensure that flue gas desulfurization is complete, and ammonium hydroxide fountain height is rationally suitable, and operation of the present invention is simple, maintenance side Just, service performance is good.
Detailed description of the invention
Fig. 1 is sampling pipe schematic diagram of the present invention;
Wherein, 1, gas pipeline, 2, electric-heating belt, 3, insulating layer, 4, protective layer.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the present invention:
The invention discloses a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling systems, by sprinkling ammonium hydroxide in activated coke production process The flue gas of generation carries out desulphurization denitration, and the accurate control of ammonium hydroxide fountain height can be realized by sampling analysis.Here is specific Embodiment:
The present invention is a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system, including ammonia water spraying device.Ammonia water spraying device is to cigarette Gas blowout ammonium hydroxide carrys out desulphurization denitration, and ammonia water spraying device is that ammonium hydroxide fountain height is adjusted by control system.Its groundwork is former Reason is to measure the content of the sulfur dioxide in flue gas by being sampled analysis to flue gas, and then control ammonia water spraying device The amount of the ammonium hydroxide sprayed realizes being precisely controlled for ammonium hydroxide fountain height, guarantees that sulfur dioxide simultaneously will not also wave by fully reacting Take ammonium hydroxide.
Control system in the present invention includes the sampling probe and gas analyzer for sampling to sulfur dioxide gas, Gas analyzer is connected to sampling probe both ends by sampling pipe, and sampling probe conveys the gas of sampling by sampling pipe To gas analyzer.Gas analyzer as used herein is to be able to carry out gas componant especially dioxy used in environment protection field Change the instrument of analysis of sulfur content, PA200-UV can be used in gas analysis instrument.Sampling pipe as used herein is Constant-temp. pipeline, It can effectively avoid sample from being gas-cooled and coagulate blocking pipeline, while avoid sulfur dioxide dissolution bring corrosion and measurement error.Constant warm tube Road ensure that the gas original sample of sampling, and then accurate measurement of the gas analyzer to gas sampled, final Guarantee control system For being precisely controlled for spray ammonia vol.
As shown in Figure 1, sampling pipe includes gas pipeline 1, the electric-heating belt 2 that 1 outer wall of gas pipeline is arranged in and incites somebody to action The insulating layer 3 that electric-heating belt 2 and gas pipeline 1 wrap up.By the gas of sampling inside gas pipeline 1, in the outer of gas pipeline 1 Electric-heating belt 2, which is arranged, in wall to carry out heating and thermal insulation to gas pipeline 1, make to keep constant temperature in gas pipeline 1.In gas pipeline 1 Outside be provided with insulating layer 3, electric-heating belt 2 is integrated by insulating layer 3 with the package of gas pipeline 1, while having the property of heat preservation Energy.Further, it is additionally provided with protective layer 4 in the outside of insulating layer 3, insulating layer 3 can be protected.Specifically using In, it may be preferable that keeping the temperature in sampling pipe is 125 DEG C~200 DEG C, can ensure that sample gas is in optimal within this range Stable state.The use of electric-heating belt plays an important role the implementation of thermostatic type sampling pipe, and combines sampling pipe Practical situations are provided with heat preservation layer and protective layer, can also take up to electric tracing while insulating layer plays insulation effect To the protection of first layer, prevent it by the damage in structure.Protective layer plays the protection of the second layer for electric-heating belt, Also there is certain heat insulation effect simultaneously.
In the present invention further, it is also provided with sampling pre-processing device on sampling pipe, completes to sample in sampling probe Gas sampled is pre-processed by sampling pre-processing device first afterwards.Sampling pre-processing device mainly includes aspiration pump, sample gas Condenser, wriggling draining pump, sampling solenoid valve and programmable controller.Sampling pre-processing device can be removed thoroughly in flue gas Dust, moisture, tar etc., while not changing under test gas component and concentration.Sample gas condenser can be such that the water in sample gas steams Air cooling is solidifying, and condensate discharge mouth is arranged in sample gas condenser, can discharge condensate liquid.Sampling pre-processing device is usually ring The instrument used in guarantor field, such as can be SO2 detection analysis instrument.
The sampling of gas is carried out in the present invention using sampling probe, filter is High-precision double-layer composite structure, and energy Automatic back blow maintenance is enough carried out, is capable of handling the dust being attached on filter surfaces in blowback maintenance.
The present invention is realized by rationally designing sampling pipe by sampling probe, sampling pre-processing device and gas analysis The combination of instrument, and then realize the on-line measurement for flue gas, the fountain height of ammonia is accurately controlled.
The present invention achievees the purpose that be precisely controlled ammonia spraying amount, reach online to meet outlet by measuring the ingredient of sample gas Target can also reduce ammonium hydroxide consumption simultaneously, realize cost efficiency.
It is incomplete that the present invention can prevent desulfurization after use, and transition gas chamber formed sulphur ammonium plug nozzle and into The phenomenon that gas grid, the sulphur ammonium of formation causes " coke poisoning " by the internal void that flue gas can block activated coke.
For the present invention by the way that electric-heating belt and insulating layer is arranged for sampling pipe, Lai Shixian Constant-temp. pipeline conveys sample gas, thus Ensure the accurate of sample gas components analysis measurement, while sample can also be avoided to be gas-cooled and coagulate blocking pipeline.
Operation of the present invention is simple, easy to maintain, and service performance is good.

Claims (7)

1. a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system, including ammonia water spraying device, it is characterised in that: further include for adjusting Save the control system of the ammonium hydroxide fountain height of ammonia water spraying device;The control system includes for sampling to sulfur dioxide gas The sampling pipe that sampling probe, gas analyzer and both ends are connect with sampling probe and gas analyzer respectively;The sampling Pipeline is Constant-temp. pipeline.
2. a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system according to claim 1, it is characterised in that: sampling pipe packet Gas pipeline (1), setting are included in the electric-heating belt (2) of gas pipeline (1) outer wall and by electric-heating belt (2) and gas pipeline (1) insulating layer (3) wrapped up.
3. a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system according to claim 1, it is characterised in that: insulating layer (3) Also set up protective layer (4) outside.
4. according to claim 1 or a kind of 3 described in any item active coke desulphurizing denitration ammonium hydroxide sprinkling systems, it is characterised in that: It further include the sampling pre-processing device being arranged on sampling pipe.
5. a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system according to claim 1, it is characterised in that: sampling probe is Automatic back blow maintenance type probe.
6. a kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system according to claim 4, it is characterised in that: sampling pretreatment Condensate discharge mouth is arranged in sample gas condenser in device.
7. according to a kind of described in any item active coke desulphurizing denitration ammonium hydroxide sprinkling systems of claim 2-3, it is characterised in that: take Temperature in sample pipeline is 125 DEG C~200 DEG C.
CN201910336657.8A 2019-04-25 2019-04-25 A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system Pending CN110102166A (en)

Priority Applications (1)

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CN201910336657.8A CN110102166A (en) 2019-04-25 2019-04-25 A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910336657.8A CN110102166A (en) 2019-04-25 2019-04-25 A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system

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Citations (8)

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Publication number Priority date Publication date Assignee Title
JPS5524535A (en) * 1978-08-11 1980-02-21 Babcock Hitachi Kk Decreasing method for nitrogen oxide
CN103335970A (en) * 2013-06-28 2013-10-02 聚光科技(杭州)股份有限公司 Flue gas denitration monitoring system and method
CN203253348U (en) * 2013-05-17 2013-10-30 青岛宏泰翔环保工程有限公司 Automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization
CN105865542A (en) * 2016-04-05 2016-08-17 东南大学 Integrated measuring device and method for smoke flow and pollutants
CN106596867A (en) * 2017-01-19 2017-04-26 国电科学技术研究院 SCR outlet flue cross section nitric oxide and oxygen concentration online monitoring method and system
CN108014610A (en) * 2018-01-05 2018-05-11 靳新令 Ammonia desulfurizing process and its desulfurizer
CN108380041A (en) * 2018-04-04 2018-08-10 南京泽众环保科技有限公司 A kind of coke oven flue gas system for desulfuration and denitration and method based on activated carbon/coke
CN109107387A (en) * 2018-09-26 2019-01-01 汇信盈(北京)智能技术有限公司 A kind of denitrating system sprays ammonia control method and control system automatically

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524535A (en) * 1978-08-11 1980-02-21 Babcock Hitachi Kk Decreasing method for nitrogen oxide
CN203253348U (en) * 2013-05-17 2013-10-30 青岛宏泰翔环保工程有限公司 Automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization
CN103335970A (en) * 2013-06-28 2013-10-02 聚光科技(杭州)股份有限公司 Flue gas denitration monitoring system and method
CN105865542A (en) * 2016-04-05 2016-08-17 东南大学 Integrated measuring device and method for smoke flow and pollutants
CN106596867A (en) * 2017-01-19 2017-04-26 国电科学技术研究院 SCR outlet flue cross section nitric oxide and oxygen concentration online monitoring method and system
CN108014610A (en) * 2018-01-05 2018-05-11 靳新令 Ammonia desulfurizing process and its desulfurizer
CN108380041A (en) * 2018-04-04 2018-08-10 南京泽众环保科技有限公司 A kind of coke oven flue gas system for desulfuration and denitration and method based on activated carbon/coke
CN109107387A (en) * 2018-09-26 2019-01-01 汇信盈(北京)智能技术有限公司 A kind of denitrating system sprays ammonia control method and control system automatically

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Title
张德姜等编著: "《石油化工装置工艺管道安装设计手册 第1篇 设计与计算》", 30 April 1994, 中国石化出版社 *

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Application publication date: 20190809