CN103949149A - Flue gas denitration equipment - Google Patents
Flue gas denitration equipment Download PDFInfo
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- CN103949149A CN103949149A CN201410211678.4A CN201410211678A CN103949149A CN 103949149 A CN103949149 A CN 103949149A CN 201410211678 A CN201410211678 A CN 201410211678A CN 103949149 A CN103949149 A CN 103949149A
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- spray gun
- flue gas
- denitration
- spraying system
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Abstract
The invention discloses flue gas denitration equipment. The flue gas denitration equipment comprises a chemical agent storage tank, a conveying system and a spraying system which are connected by virtue of pipelines, wherein a chemical agent is conveyed into the spraying system by the conveying system from the chemical agent storage tank; the spraying system is used for atomizing the chemical agent and spraying the atomized chemical agent into a denitration reaction zone; a monitoring device is arranged in the denitration reaction zone; the monitoring device is externally connected with a PLC (Programmable Logic Controller) system; the conveying system and the spraying system are controlled by the PLC system; the conveying system comprises a solenoid valve, a water pump, an electric control valve and a flow rate sensor; the spraying system comprises an air compressor, an air valve, an air pressure sensor and a spray gun. The invention aims at providing the flue gas denitration equipment with a high denitration effect and high denitration efficiency, and the chemical agent with required concentration can be accurately calculated, so that the waste or insufficiency of the chemical agent can be avoided.
Description
Technical field
The present invention relates to the technical field of gas cleaning, relate in particular to a kind of flue gas denitrification equipment.
Background technology
Denitration device generally comprises pharmacy jar, water pump, spray gun and compressed air cylinder etc. at present.During work, medicament is delivered to spray gun through water pump, through spray gun atomization, is ejected in burner hearth, completes and the reacting of nitrogen oxides in effluent, thereby realizes denitration.Existing denitrating system and denitration medicament can be removed nitrogen oxide to a certain extent, but denitration efficiency is low, and effect is general, and the use amount of medicament is also held accurately, easily occur ammonia escape, or produce new pollutant.
Summary of the invention
The object of the invention is to propose the flue gas denitrification equipment that a kind of denitration effect is high, efficiency is high, medicament that can accurate Calculation desired concn, avoids waste or under medication.
For reaching this object, the present invention by the following technical solutions:
A kind of flue gas denitrification equipment, comprise medicine storing pot, induction system and spraying system, described medicine storing pot, described induction system and described spraying system are connected by pipeline, described medicine storing pot arrives described spraying system by induction system by drug delivery, and described spraying system is sprayed on the atomization of denitration medicament in denitration reaction place;
Described denitration reaction place is provided with monitoring device, and described monitoring device is circumscribed with PLC control system, and described induction system and described spraying system are controlled by described PLC control system;
Described induction system comprises magnetic valve, water pump, electric control valve and flow sensor, and described spraying system comprises air compressor, air valve, baroceptor and spray gun;
Described electric control valve is connected in described water pump and controls described water pump the pump of medicament in described medicine storing pot is got, and the medicament that pump takes out is transported to described spray gun through described flow sensor;
Described air compressor compressed air is transported to described spray gun through described air valve and described baroceptor;
Described spray gun is scalable spray gun, and the nozzle activity of described spray gun debouches described denitration reaction place.
Preferably, described spraying system is provided with the spray gun that is no less than 1.
Preferably, described scalable spray gun is controlled flexible by cylinder or oil cylinder.
Preferably, described denitration medicament is mixed by active ingredient and additive, described medicament is one or more the mixture in ammonium salt, sodium salt or alkali compounds, and described additive is one or more the mixture in metal salt solution, organic solvent or hydroxide solution.
Preferably, horizontal plane is installed higher than the installed surface of described flow sensor in the bottom of described medicine storing pot.
Preferably, the nozzle of described spray gun is arranged on the region that temperature in described denitration reaction place is applicable to carrying out denitration reaction.
Preferably, described magnetic valve, described water pump and described electric control valve are installed and are connected by pipe level.
Preferably, between described medicine storing pot and described magnetic valve, be also provided with ball valve.
Preferably, between described medicine storing pot and described magnetic valve, filter is also set.
Preferably, described scalable spray gun comprises lance tube, cylinder and support, and described cylinder setting is fixedly mounted on support, and described lance tube is installed on described support by ring flange and axle sleeve, and described cylinder is controlled the flexible of described lance tube by connecting plate;
Described lance tube one end is provided with charging interface and intake interface, and the other end is provided with described nozzle, and the nozzle end of described lance tube is also provided with nozzle guard cover.
Beneficial effect of the present invention: 1, denitration efficiency is high, effective; 2, scalable spray gun, selects to stretch into or exit burner hearth, prolonging nozzle life-span according to service condition; 3, the required pharmaceutical quantities of accurate Calculation, avoids waste or under medication.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention;
Fig. 2 is the structural representation of the induction system of one embodiment of the present of invention;
Fig. 3 is the structural representation of one embodiment of the present of invention.
Wherein: medicine storing pot 1, induction system 2, spraying system 3, denitration reaction place 4, magnetic valve 21, water pump 22, electric control valve 23, flow sensor 24, air compressor 31, spray gun 32.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate technical scheme of the present invention.
As shown in Figure 1, a kind of flue gas denitrification equipment, comprise medicine storing pot 1, induction system 2 and spraying system 3, described medicine storing pot 1, described induction system 2 and described spraying system 3 are connected by pipeline, described medicine storing pot 1 arrives described spraying system 3 by induction system 2 by drug delivery, and described spraying system 3 is sprayed on the atomization of denitration medicament in denitration reaction place 4;
Described denitration reaction place 4 is provided with monitoring device, and described monitoring device is circumscribed with PLC control system, and described induction system and described spraying system are controlled by described PLC control system;
As shown in Figure 2, described induction system 2 comprises magnetic valve 21, water pump 22, electric control valve 23 and flow sensor 24, and described spraying system 3 comprises air compressor 31, air valve, baroceptor and spray gun 32;
The pump that described electric control valve 23 is connected in described water pump 22 and controls 22 pairs of described medicine storing pot 1 interior medicaments of described water pump is got, and the medicament that pump takes out is transported to described spray gun 32 through described flow sensor 24;
Described air compressor compressed air is transported to described spray gun 32 through described air valve and described baroceptor;
Described spray gun 32 is scalable spray gun, and the nozzle activity of described spray gun 32 debouches described denitration reaction place 4.
Medicine storing pot 1 is equipped with the denitration medicament of having prepared, in the time of need to using denitration medicament, through monitoring device and PLC control system, calculate after required amount, by electric control valve 23, control the agent of getting it filled of water pump 22 pumps, through flow sensor 24, control and be transported to spray gun 32, meanwhile, according to required compressed air consumption, by air valve and air pressure sensing control compressed air delivery to spray gun 32.Induction system 2 as shown in Figure 3 and the connected mode of spraying system 3, compressed air mixes in lance tube with medicament, through nozzle atomization, sprays.Denitration device is according to the concentration situation of nitride in the interior flue gas in denitration reaction place 4, medicament that can accurate Calculation desired concn, pass through magnetic valve, water pump, electric control valve, control with flow sensor, denitration medicament is transported to spray gun 32 from medicine storing pot 2, thereby avoids waste or the requirement that does not reach denitration under medication of denitration medicament.In addition, spray gun 32 used is scalable spray gun, according to service condition, can enter or exit in hearth of hot-blast stove by movable telescopic, prevents that nozzle from forming corrosion in burner hearth because being placed on for a long time.Spray gun convenient disassembly, effectively prevents from stopping up and increasing security simultaneously.Denitration reaction place 4 is as kiln, spray tower or other generation exhaust emissions districts.
Preferably, described spraying system 3 is provided with the spray gun 32 that is no less than 1.The quantity of spray gun 32 arranges and can arrange according to job requirements, and general spray gun quantity is many, and denitration required time can shorten.
Preferably, described scalable spray gun is controlled flexible by cylinder or oil cylinder.By cylinder or oil cylinder, provide power to spray gun 32, control the flexible of lance tube, according to service condition, can enter or exit denitration reaction place 4 by movable telescopic.
Preferably, described denitration medicament is mixed by active ingredient and additive, described medicament is one or more the mixture in ammonium salt, sodium salt or alkali compounds, and described additive is one or more the mixture in metal salt solution, organic solvent or hydroxide solution.
Medicament is one or more the mixture in ammonium salt, sodium salt or alkali compounds, and additive is one or more the mixture in metal salt solution, organic solvent or hydroxide solution.Spray gun can make medicament be atomized into superfine little drop, then sprays in specific region.Spraying into of vaporific fine drop can make medicament fully contact with flue gas, improves reaction efficiency.Make medicament enter stove and decompose rapidly by high temperature, through a series of reduction reaction, reduction of nitrogen oxide is nitrogen (N2), water (H2O) and carbon dioxide (CO2) the most at last, thereby the nitrogen oxide in flue gas is efficiently removed.This flue gas denitrification equipment coordinates above-mentioned medicament to use, and denitration rate can reach 80%, and discharged nitrous oxides concentration meets discharging standards.With the comparison of common denitration device denitration effect, efficiency improves 10%-20%, and does not have ammonia escape phenomenon, does not produce new pollutant.
Preferably, horizontal plane is installed higher than the installed surface of described flow sensor 24 in the bottom of described medicine storing pot 1.Horizontal plane is installed in the bottom of medicine storing pot 1 will guarantee the accurate of flow rate calculation higher than the installed surface of flow sensor 24, makes the medicament storage of medicine storing pot 1 interior reality for can make dosage simultaneously.
Preferably, the nozzle of described spray gun 32 is arranged on the region that described denitration reaction place 4 interior temperature are applicable to carrying out denitration reaction.Nozzle 32 is arranged on the region that the interior temperature in denitration reaction place 4 is applicable to carrying out denitration reaction can improve denitration efficiency.
Preferably, described magnetic valve 21, described water pump 22 and described electric control valve 23 are installed and are connected by pipe level.By pipe level, connection is installed, pressurized is balanced, and lifetime of system is long, and instrument is easily changed.
Preferably, between described medicine storing pot 1 and described magnetic valve 21, be also provided with ball valve.The setting of ball valve is equal to the switch gate of adding one control medicament circulation, and medicine storing pot 1 and induction system 2 can independently dividedly be opened, and sealing is reliable, simple in structure, convenient for maintaining.
Preferably, between described medicine storing pot 1 and described magnetic valve 21, filter is also set.The setting of filter makes the precipitation in medicament be intercepted by filter screen, is not transported to spray gun, avoids the obstruction of spray gun.
Preferably, described scalable spray gun comprises lance tube, cylinder and support, and described cylinder setting is fixedly mounted on support, and described lance tube is installed on described support by ring flange and axle sleeve, and described cylinder is controlled the flexible of described lance tube by connecting plate;
Described lance tube one end is provided with charging interface and intake interface, and the other end is provided with described nozzle, and the nozzle end of described lance tube is also provided with nozzle guard cover.
Lance tube is installed on support by ring flange and axle sleeve, by cylinder, is controlled and is stretched, and realizes nozzle and enters or exit in hot-blast stove, and the setting of nozzle guard cover is the life-span of prolonging nozzle more.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present invention, within these modes all will fall into protection scope of the present invention.
Claims (10)
1. a flue gas denitrification equipment, it is characterized in that: comprise medicine storing pot, induction system and spraying system, described medicine storing pot, described induction system and described spraying system are connected by pipeline, described medicine storing pot arrives described spraying system by induction system by drug delivery, and described spraying system is sprayed on the atomization of denitration medicament in denitration reaction place;
Described denitration reaction place is provided with monitoring device, and described monitoring device is circumscribed with PLC control system, and described induction system and described spraying system are controlled by described PLC control system;
Described induction system comprises magnetic valve, water pump, electric control valve and flow sensor, and described spraying system comprises air compressor, air valve, baroceptor and spray gun;
Described electric control valve is connected in described water pump and controls described water pump the pump of medicament in described medicine storing pot is got, and the medicament that pump takes out is transported to described spray gun through described flow sensor;
Described air compressor compressed air is transported to described spray gun through described air valve and described baroceptor;
Described spray gun is scalable spray gun, and the nozzle activity of described spray gun debouches described denitration reaction place.
2. flue gas denitrification equipment according to claim 1, is characterized in that: described spraying system is provided with the spray gun that is no less than 1.
3. flue gas denitrification equipment according to claim 1, is characterized in that: described scalable spray gun is controlled flexible by cylinder or oil cylinder.
4. flue gas denitrification equipment according to claim 1, it is characterized in that: described denitration medicament is mixed by active ingredient and additive, described medicament is one or more the mixture in ammonium salt, sodium salt or alkali compounds, and described additive is one or more the mixture in metal salt solution, organic solvent or hydroxide solution.
5. flue gas denitrification equipment according to claim 1, is characterized in that: horizontal plane is installed higher than the installed surface of described flow sensor in the bottom of described medicine storing pot.
6. flue gas denitrification equipment according to claim 1, is characterized in that: the nozzle of described spray gun is arranged on the region that temperature in described denitration reaction place is applicable to carrying out denitration reaction.
7. flue gas denitrification equipment according to claim 1, is characterized in that: described magnetic valve, described water pump and described electric control valve are installed and are connected by pipe level.
8. flue gas denitrification equipment according to claim 1, is characterized in that: between described medicine storing pot and described magnetic valve, be also provided with ball valve.
9. flue gas denitrification equipment according to claim 1, is characterized in that: between described medicine storing pot and described magnetic valve, filter is also set.
10. flue gas denitrification equipment according to claim 1, it is characterized in that: described scalable spray gun comprises lance tube, cylinder and support, described cylinder setting is fixedly mounted on support, described lance tube is installed on described support by ring flange and axle sleeve, and described cylinder is controlled the flexible of described lance tube by connecting plate;
Described lance tube one end is provided with charging interface and intake interface, and the other end is provided with described nozzle, and the nozzle end of described lance tube is also provided with nozzle guard cover.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211678.4A CN103949149A (en) | 2014-05-19 | 2014-05-19 | Flue gas denitration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211678.4A CN103949149A (en) | 2014-05-19 | 2014-05-19 | Flue gas denitration equipment |
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| CN103949149A true CN103949149A (en) | 2014-07-30 |
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| CN201410211678.4A Pending CN103949149A (en) | 2014-05-19 | 2014-05-19 | Flue gas denitration equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688639A (en) * | 2016-04-14 | 2016-06-22 | 彭馨 | Method and equipment for flue gas deacidification method by two-phase flow semi-dry process based on fixed spray gun |
| CN108144432A (en) * | 2018-01-15 | 2018-06-12 | 无锡雪浪环境科技股份有限公司 | The device of protection cooling spray gun |
| CN108757126A (en) * | 2018-07-19 | 2018-11-06 | 伟能机电设备(深圳)有限公司 | A kind of automatic control system of internal combustion engine generator group SCR denitration |
| CN109647320A (en) * | 2019-01-10 | 2019-04-19 | 光大环保能源（江阴）有限公司 | A kind of liquid alkaline deacidification system using pneumatic liquid alkaline spray gun |
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| JP4569954B2 (en) * | 2004-11-01 | 2010-10-27 | バブコック日立株式会社 | Exhaust gas denitration apparatus and method |
| CN202538632U (en) * | 2012-04-01 | 2012-11-21 | 无锡雪浪环境科技股份有限公司 | Processing device for emission reduction control of flue gas nitrogen oxides |
| CN202569946U (en) * | 2012-04-27 | 2012-12-05 | 四川君和环保工程有限公司 | Ammonia injection automatic control device for flue gas denitration by selective non-catalytic reduction (SNCR) method |
| CN203816492U (en) * | 2014-05-19 | 2014-09-10 | 佛山市合璟节能环保科技有限公司 | Flue gas denitration device |
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2014
- 2014-05-19 CN CN201410211678.4A patent/CN103949149A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4569954B2 (en) * | 2004-11-01 | 2010-10-27 | バブコック日立株式会社 | Exhaust gas denitration apparatus and method |
| CN202538632U (en) * | 2012-04-01 | 2012-11-21 | 无锡雪浪环境科技股份有限公司 | Processing device for emission reduction control of flue gas nitrogen oxides |
| CN202569946U (en) * | 2012-04-27 | 2012-12-05 | 四川君和环保工程有限公司 | Ammonia injection automatic control device for flue gas denitration by selective non-catalytic reduction (SNCR) method |
| CN203816492U (en) * | 2014-05-19 | 2014-09-10 | 佛山市合璟节能环保科技有限公司 | Flue gas denitration device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688639A (en) * | 2016-04-14 | 2016-06-22 | 彭馨 | Method and equipment for flue gas deacidification method by two-phase flow semi-dry process based on fixed spray gun |
| CN108144432A (en) * | 2018-01-15 | 2018-06-12 | 无锡雪浪环境科技股份有限公司 | The device of protection cooling spray gun |
| CN108757126A (en) * | 2018-07-19 | 2018-11-06 | 伟能机电设备(深圳)有限公司 | A kind of automatic control system of internal combustion engine generator group SCR denitration |
| CN109647320A (en) * | 2019-01-10 | 2019-04-19 | 光大环保能源（江阴）有限公司 | A kind of liquid alkaline deacidification system using pneumatic liquid alkaline spray gun |
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Application publication date: 20140730 |
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