CN205145982U - Bispin formula SCR denitrification facility - Google Patents
Bispin formula SCR denitrification facility Download PDFInfo
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- CN205145982U CN205145982U CN201520895330.1U CN201520895330U CN205145982U CN 205145982 U CN205145982 U CN 205145982U CN 201520895330 U CN201520895330 U CN 201520895330U CN 205145982 U CN205145982 U CN 205145982U
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- ammonia
- catalytic reaction
- reaction chamber
- flue gas
- eddy flow
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Abstract
The utility model discloses a bispin formula SCR denitrification facility. The interior first and second whirl catalytic reaction chambeies that have set up along the denitrating tower body, the flue gas lets in the pipeline and establishes lateral wall on the tower body, the edge flue gas lets in the inner circumference of pipeline and the inner circumference at first whirl catalytic reaction chamber top has arranged a plurality of swirling -flow atomizing nozzle respectively, when the flue gas got into the flue gas and lets in the pipeline, the ammonia that sprays with swirling -flow atomizing nozzle entrainmented the mixture each other, sank with the mode spiral of the circle of contact along the circumference top -down in first whirl catalytic reaction chamber to under the effect of swirler, the circumference of following second whirl catalytic reaction chamber again rises with the mode spiral of the circle of contact from bottom to top, this device is under the prerequisite of guaranteeing high -efficient denitration, and catalyst amount is few, and technological means simple accurate compares not only denitrating tower simple structure, low in cost with prior art, and denitration efficiency is high, and the energy consumption is low, has reduced the escape rate of ammonia, makes the denitration cost reduce by a wide margin, is showing and is improving economic benefits.
Description
Technical field
The utility model relates to denitrating flue gas, particularly relates to a kind of double-rotation type SCR denitration device.
Background technology
NO
xbe in atmosphere pollution, affect larger pollutant, photochemical fog, acid rain can be formed, damage the ozone layer, even cause serious greenhouse effects, have high risks to human body, environment and the ecosystem.Therefore, to NO
xadminister, improve denitration technology to preserve the ecological environment and the sustainable development of China significant.
At present, traditional denitration mainly adopts selective catalytic reduction (SCR) and SNCR method (SNCR).Wherein, the SCR technology be widely adopted is that one administers NO from tail gas
xthe effective ways of discharge, its reducing agent has urea, ammoniacal liquor and pure ammonia, normally utilizes NH
3as reducing agent under the effect of catalyst by NO
xbe reduced to harmless N
2, thus remove the NO in flue gas
x.The Rational choice of catalyst and use are the cores of SCR technology.The structure of catalyst mainly contains honeycomb fashion, flat and corrugated plate dst three kinds.Wherein, flat or corrugated plate dst catalyst has better anti-laying dust and blocking ability than cellular catalyst, but gas-solid contact specific area is little, and catalytic effect is poor.
Research shows, denitration device both domestic and external, and due to by the impact of gas-solid contact area, in tower body, the Flow Field Distribution of flue gas is uneven, and the limited time of flue gas and reducing agent, catalyst exposure, its catalytic reduction reaction efficiency is low, and extensively there is NH
3the problem such as escape, catalyst blockage, catalyst failure.Not only affect the raising of denitration efficiency, and cause denitration cost up, occur secondary pollution problems.Research and develop efficient SCR method and device is very urgent with necessity.
By known to existing SCR system research, the factor affecting denitration efficiency comprises reaction temperature, the time of staying, the mixture homogeneity of reducing agent and flue gas, reducing agent and NO
xstoichiometric ratio, catalyst performance etc.According to the kinetics principle of SCR catalyst, when reaction temperature and catalyst performance certain, ammonia and NO
xthe denitration efficiency of mixability on SCR technique there is great impact.In traditional denitration device, in order to increase ammonia and NO
xincorporation time, have employed the cross-sectional area of aggrandizement apparatus, reduce flue gas flow rate, increase the method for tower body height or length.The cross-sectional area of aggrandizement apparatus not only causes flow field in tower to present laminar flow regime, decreases the turbulence level of blender, reduces denitration efficiency, and add the deposition of particle in flue gas, make a large amount of dust stratification of catalyst surface, affect the activity of catalyst, increase the escape of ammonia; Increase tower body height or length increase catalyst amount again greatly, increase construction cost and operating cost.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, provides a kind of double-rotation type SCR denitration device.Both can realize flue gas NO_x Reduction by Effective, solve again the problem of easy dust stratification, catalyst failure and the escaping of ammonia often occurred in prior art.
The utility model is achieved through the following technical solutions:
A kind of double-rotation type SCR denitration device, comprises denitrating tower body and along the first board-like catalyst layer 8 that the inner peripheral surface of denitrating tower body is arranged, is provided with the second board-like catalyst layer 8-1 in the first board-like catalyst layer 8; Cavity between first board-like catalyst layer 8 and the second board-like catalyst layer 8-1 is the first eddy flow catalytic reaction chamber 8-2, and the cavity in the second board-like catalyst layer 8-1 is the second eddy flow catalytic reaction chamber 8-3; Second 8-3 bottom, eddy flow catalytic reaction chamber is provided with cyclone 9;
The top seal of described first eddy flow catalytic reaction chamber 8-2, and at the upper side wall of denitrating tower body, flue gas is set along denitrating tower body inner periphery tangential direction and passes into pipeline 11; The inner peripheral surface of the inner peripheral surface and the first 8-2 top, eddy flow catalytic reaction chamber that pass into pipeline 11 along flue gas is furnished with multiple vortex atomizing nozzle 7 respectively;
When flue gas enter flue gas pass into pipeline 11 time, the ammonia sprayed with vortex atomizing nozzle 7 meets, because ammonia sprays in the mode of eddy flow, flue gas and ammonia are entrainmented mutually mix, form gaseous mixture, gaseous mixture sinks with the mode spiral of the circle of contact from top to bottom along the circumference of the first eddy flow catalytic reaction chamber 8-2, when sinking down into after bottom the first eddy flow catalytic reaction chamber 8-2, under the cyclonic action of cyclone 9, gaseous mixture along the circumference of the second eddy flow catalytic reaction chamber 8-3 from bottom to top with the mode spiral of the circle of contact;
Each vortex atomizing nozzle 7 connects the ammonia feed system be arranged on outside desulfurizing tower by pipeline.
Described flue gas passes into the cross section of pipeline 11, first eddy flow catalytic reaction chamber 8-2 and the second eddy flow catalytic reaction chamber 8-3 for circular.
Described ammonia feed system comprise liquid ammonia storage tank 6 that pipeline successively connects, for liquefied ammonia is evaporated liquid ammonia evaporator 5, for ammonia is cushioned ammonia dashpot 4, for ammonia/air mixer 3 of mixing ammonia and air and the dilution air 2 for diluting ammonia;
Described ammonia/air mixer 3 connects vortex atomizing nozzle 7 by one with the pipeline of magnetic valve 12; The outside of described denitrating tower body is also provided with a escaping of ammonia feedback control system 1, and the exhanst gas outlet of described denitrating tower bodies top is provided with the probe 13 for detecting ammonia density; The concentration data of the ammonia that the escaping of ammonia feedback control system 1 detects according to probe 13, controlling the aperture of ammonia feed system and magnetic valve 12, for controlling the straying quatity of vortex atomizing nozzle 7 pairs of ammonia in real time, making to spray into the ammonia amount in exhaust gases passes and NO
xconcentration matches.
The bottom of described denitrating tower body is provided with closed dust stratification case 10, for the dust stratification dropped down by the board-like catalyst layer of storage first 8 and the second board-like catalyst layer 8-1.The bottom of described closed dust stratification case 10 is provided with ash-valve.
A kind of double-rotation type SCR denitration method is as follows:
One-level eddy flow catalytic reduction reaction step:
When flue gas enter flue gas pass into pipeline 11 time, the ammonia sprayed with vortex atomizing nozzle 7 meets, because ammonia sprays in the mode of eddy flow, flue gas and ammonia are entrainmented mutually mix, form gaseous mixture, gaseous mixture sinks, in spiral sinking watching with the mode spiral of the circle of contact from top to bottom along the circumference of the first eddy flow catalytic reaction chamber 8-2, repeatedly tangentially wash away the inwall of the first board-like catalyst layer 8 and the outer wall of the second board-like catalyst layer 8-1, and one-level eddy flow catalytic reduction reaction occurs with it;
Secondary eddy flow catalytic reduction reaction step:
When gaseous mixture spiral sinks down into after bottom the first eddy flow catalytic reaction chamber 8-2, under the cyclonic action of cyclone 9, gaseous mixture along the circumference of the second eddy flow catalytic reaction chamber 8-3 from bottom to top with the mode spiral of the circle of contact, repeatedly tangentially wash away the inwall of the second board-like catalyst layer 8-1 in spiralling process, and secondary eddy flow catalytic reduction reaction occurs with it; Finally exported by denitrating tower bodies top and discharge, achieve denitrating flue gas.
The escaping of ammonia FEEDBACK CONTROL step: when probe 13 detects that the concentration of ammonia in flue gas is greater than preset value, the ammonia density data that the escaping of ammonia feedback control system 1 is fed back according to this probe 13, control the aperture of ammonia feed system and magnetic valve 12, for controlling the straying quatity of vortex atomizing nozzle 7 pairs of ammonia in real time, make ammonia spraying amount and NO
xconcentration and preset value match.
The utility model, relative to prior art, has following advantage and effect:
1, flue gas and NH
3good mixing effect, even flow field, denitration efficiency are high.Flue gas enters flue gas when passing into pipeline, the ammonia sprayed with vortex atomizing nozzle meets, because ammonia sprays in the mode of eddy flow, flue gas and ammonia are entrainmented mutually mix, form gaseous mixture, gaseous mixture sinks with the mode spiral of the circle of contact from top to bottom along the circumference in the first eddy flow catalytic reaction chamber, when sinking down into after bottom the first eddy flow catalytic reaction chamber, under the cyclonic action of cyclone, gaseous mixture along the circumference in the second eddy flow catalytic reaction chamber from bottom to top with the mode spiral of the circle of contact.This swirling flow atomizing state, compared with the fluidised form that it is traditional, the speed of gaseous mixture at circumferencial direction can be increased on the one hand, ensure flue gas and ammonia fully mix prerequisite under, it is made to have enough strokes in each eddy flow catalytic reaction chamber, make flue gas more fully complete catalytic reduction reaction, reach perfect denitration object.On the other hand, gaseous mixture helical flow but not streamlined flow, fully increase its stroke in each eddy flow catalytic reaction chamber and the time of staying, make flow field more even, degree of filling is good, makes the catalytic reduction reaction of flue gas more abundant, time of contact is longer, increase reactant contact gear ratio surface area, efficiently utilize the space of denitrating tower, the denitration efficiency of flue gas is further improved.
2, the time and space that ammonia mixes with flue gas has been widened.Set up flue gas in the upper portion side wall of denitrating tower body along denitrating tower body inner periphery tangential direction and pass into pipeline, the vortex atomizing nozzle of periphery setting within it, play the effect of pre-spray ammonia, to carry out pretreatment to flue gas, make full use of spray ammonia space and time, guarantee mixing of ammonia and flue gas further.
3, avoid catalyst dust stratification, improve catalyst service efficiency.Gaseous mixture (flue gas and ammonia) is in each eddy flow catalytic reaction chamber under high-speed rotational effect, and the dust that centrifugation goes out, along by board-like catalyst layer, tumbles in closed dust stratification case.Efficiently solve the contradiction between flue gas flow rate, dust stratification, contact gear ratio surface area, both decreased dust stratification and blocking, and alleviated catalyst failure, make again catalyst service efficiency reach higher level.
4, the escapement ratio of ammonia is reduced.On the one hand because ammonia sprays in the mode of eddy flow, flue gas and ammonia are entrainmented mutually and mix, and along by inner periphery direction, each eddy flow catalytic reaction chamber with the mode helical flow of the circle of contact, NH in minimizing denitrating tower exiting flue gas
3volume fraction, have effectively achieved the NO_x Reduction by Effective of flue gas, reduce NH
3escapement ratio.On the other hand, for optimizing NH further
3escapement ratio, add the escaping of ammonia feedback control system, and be provided with the probe for detecting ammonia density at the exhanst gas outlet of denitrating tower bodies top; Ammonia feedback control system, according to the concentration data of the ammonia detected of popping one's head in, controlling the aperture of ammonia feed system and magnetic valve, for controlling the straying quatity of vortex atomizing nozzle to ammonia in real time, making to spray into the ammonia amount in exhaust gases passes and NO
xconcentration matches.Solve in traditional SCR device and spray ammonia real-time tracking Dynamic controlling problem, both ensured denitration efficiency, the escapement ratio that reduce further ammonia reduces the escape of ammonia, avoids secondary pollution, reduces the escape of ammonia, avoids secondary pollution.
5, the utility model is under the prerequisite ensureing NO_x Reduction by Effective, and catalyst amount is few, and technological means is simple and easy to do.Compared with prior art not only denitrating tower structure is simple, cheap, and denitration efficiency is high, and energy consumption is low, denitration cost is significantly reduced, significantly improves economic benefit.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the upper portion side wall at denitrating tower body in Fig. 1, and the flue gas arranged along denitrating tower body inner periphery tangential direction passes into pipeline configuration schematic top plan view.
Fig. 3 is denitrating tower bodies top vortex atomizing nozzle distribution schematic diagram.
Fig. 4 is hydrocyclone structure schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Figures 1 to 4.The utility model discloses a kind of double-rotation type SCR denitration device, comprise denitrating tower body and along the first board-like catalyst layer 8 that the inner peripheral surface of denitrating tower body is arranged, in the first board-like catalyst layer 8, be provided with the second board-like catalyst layer 8-1; Cavity between first board-like catalyst layer 8 and the second board-like catalyst layer 8-1 is the first eddy flow catalytic reaction chamber 8-2, and the cavity in the second board-like catalyst layer 8-1 is the second eddy flow catalytic reaction chamber 8-3; Second 8-3 bottom, eddy flow catalytic reaction chamber is provided with cyclone 9; The cross section of the first eddy flow catalytic reaction chamber 8-2 and the second eddy flow catalytic reaction chamber 8-3 is circular.The top seal of described first eddy flow catalytic reaction chamber 8-2, and at the upper side wall of denitrating tower body, flue gas is set along denitrating tower body inner periphery tangential direction and passes into pipeline 11; The inner peripheral surface of the inner peripheral surface and the first 8-2 top, eddy flow catalytic reaction chamber that pass into pipeline 11 along flue gas is furnished with multiple vortex atomizing nozzle 7 respectively.
When flue gas enter flue gas pass into pipeline 11 time, the ammonia sprayed with vortex atomizing nozzle 7 meets, because ammonia sprays in the mode of eddy flow, flue gas and ammonia are entrainmented mutually mix, form gaseous mixture, gaseous mixture sinks with the mode spiral of the circle of contact from top to bottom along the circumference of the first eddy flow catalytic reaction chamber 8-2, when sinking down into after bottom the first eddy flow catalytic reaction chamber 8-2, under the cyclonic action of cyclone 9, gaseous mixture along the circumference of the second eddy flow catalytic reaction chamber 8-3 from bottom to top with the mode spiral of the circle of contact.Enhance flue gas and catalyst mix, make whole flow field fully reach turbulent, solve the laminar flow regime that traditional SCR denitration flow field presents, flue gas mixes bad with ammonia, the problem of flow field inequality.From gaseous mixture out after the first eddy flow catalytic reaction chamber 8-2 reacts under the effect of cyclone gas, eddy flow rises and enters the second eddy flow catalytic reaction chamber 8-3, eddy flow washes away various catalyst layer repeatedly, realize the reaction of secondary NO_x Reduction by Effective, increase the specific area of gaseous mixture and catalyst exposure, further increase NO in ammonia and flue gas
xwith the time of contact of catalyst.
Each vortex atomizing nozzle 7 connects the ammonia feed system be arranged on outside desulfurizing tower by pipeline.
Described flue gas passes into the cross section of pipeline 11, first eddy flow catalytic reaction chamber 8-2 and the second eddy flow catalytic reaction chamber 8-3 for circular.
Described ammonia feed system comprise liquid ammonia storage tank 6 that pipeline successively connects, for liquefied ammonia is evaporated liquid ammonia evaporator 5, for ammonia is cushioned ammonia dashpot 4, for ammonia/air mixer 3 of mixing ammonia and air and the dilution air 2 for diluting ammonia;
Described ammonia/air mixer 3 connects vortex atomizing nozzle 7 by one with the pipeline of magnetic valve 12; The outside of described denitrating tower body is also provided with a escaping of ammonia feedback control system 1, and the exhanst gas outlet of described denitrating tower bodies top is provided with the probe 13 for detecting ammonia density; The concentration data of the ammonia that the escaping of ammonia feedback control system 1 detects according to probe 13, controlling the aperture of ammonia feed system and magnetic valve 12, for controlling the straying quatity of vortex atomizing nozzle 7 pairs of ammonia in real time, making to spray into the ammonia amount in exhaust gases passes and NO
xconcentration matches.
The utility model, when ensureing that flue gas axial flow velocity is constant or reduce, increases peripheral speed, facilitates gaseous mixture in catalyst surface high-speed rotational effect repeatedly, decrease the dust stratification of catalyst surface, make catalyst service efficiency reach higher level.By arranging the anti-arranged in series of two-stage eddy flow catalytic reduction, have effectively achieved the repeatedly denitration of flue gas, and the escaping of ammonia feedback control system is set, control the straying quatity of ammonia in real time, can make to spray into ammonia amount and NO
xconcentration matches.Effectively solve flow field inequality, the deposition of particle in flue gas, the catalyst failure problem that a large amount of dust stratification of catalyst surface occurs, ensure that the activity of catalyst, improve denitration efficiency, decrease the escape of ammonia, avoid the problem of secondary pollution, reduce operating cost.
Board-like catalyst layer is applicable to containing ash concentration high, not easily block, but its specific area is little.In order to solve this contradiction, both denitration efficiency can be improved, can prevent again dust stratification from blocking, the utility model sinks to eddy flow and rises under adopting first gaseous mixture eddy flow, eddy flow washes away the board-like catalyst layer in these two eddy flow catalytic reaction chambeies repeatedly, the centrifugal force utilizing flue gas swirling flow atomizing to produce and inertia force make part dust separation out, dust tumbles in the closed dust stratification case 10 be arranged on bottom denitrating tower along tower wall, the object of boasting ash can be reached, so both make catalyst play its maximum effect and turn avoid dust stratification blocking.
Adopt the utility model double-rotation type SCR denitration device to realize denitrating flue gas, realize by following steps:
One-level eddy flow catalytic reduction reaction step:
When flue gas enter flue gas pass into pipeline 11 time, the ammonia sprayed with vortex atomizing nozzle 7 meets, because ammonia sprays in the mode of eddy flow, flue gas and ammonia are entrainmented mutually mix, form gaseous mixture, gaseous mixture sinks, in spiral sinking watching with the mode spiral of the circle of contact from top to bottom along the circumference of the first eddy flow catalytic reaction chamber 8-2, repeatedly tangentially wash away the inwall of the first board-like catalyst layer 8 and the outer wall of the second board-like catalyst layer 8-1, and one-level eddy flow catalytic reduction reaction occurs with it;
Secondary eddy flow catalytic reduction reaction step:
When gaseous mixture spiral sinks down into after bottom the first eddy flow catalytic reaction chamber 8-2, under the cyclonic action of cyclone 9, gaseous mixture along the circumference of the second eddy flow catalytic reaction chamber 8-3 from bottom to top with the mode spiral of the circle of contact, repeatedly tangentially wash away the inwall of the second board-like catalyst layer 8-1 in spiralling process, and secondary eddy flow catalytic reduction reaction occurs with it; Finally exported by denitrating tower bodies top and discharge, achieve denitrating flue gas.
The escaping of ammonia FEEDBACK CONTROL step: when probe 13 detects that the concentration of ammonia in flue gas is greater than preset value, the ammonia density data that the escaping of ammonia feedback control system 1 is fed back according to this probe 13, control the aperture of ammonia feed system and magnetic valve 12, for controlling the straying quatity of vortex atomizing nozzle 7 pairs of ammonia in real time, make ammonia spraying amount and NO
xconcentration and preset value match.
Vortex atomizing nozzle 7, sprays gas or liquid in the mode of rotating jet.
As mentioned above, just the utility model can be realized preferably.
Embodiment of the present utility model is not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present utility model and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (5)
1. a double-rotation type SCR denitration device, it is characterized in that: comprise denitrating tower body and along the first board-like catalyst layer (8) that the inner peripheral surface of denitrating tower body is arranged, in the first board-like catalyst layer (8), be provided with the second board-like catalyst layer (8-1); Cavity between first board-like catalyst layer (8) and the second board-like catalyst layer (8-1) is the first eddy flow catalytic reaction chamber (8-2), and the cavity in the second board-like catalyst layer (8-1) is the second eddy flow catalytic reaction chamber (8-3); Second eddy flow catalytic reaction chamber (8-3) bottom is provided with cyclone (9);
The top seal in described first eddy flow catalytic reaction chamber (8-2), and at the upper side wall of denitrating tower body, flue gas is set along denitrating tower body inner periphery tangential direction and passes into pipeline (11); The inner peripheral surface of the inner peripheral surface and the first eddy flow catalytic reaction chamber (8-2) top that pass into pipeline (11) along flue gas is furnished with multiple vortex atomizing nozzle (7) respectively;
When flue gas enter flue gas pass into pipeline (11) time, the ammonia sprayed with vortex atomizing nozzle (7) meets, because ammonia sprays in the mode of eddy flow, flue gas and ammonia are entrainmented mutually mix, form gaseous mixture, gaseous mixture sinks with the mode spiral of the circle of contact from top to bottom along the circumference in the first eddy flow catalytic reaction chamber (8-2), after sinking down into the first bottom, eddy flow catalytic reaction chamber (8-2), under the cyclonic action of cyclone (9), gaseous mixture along the circumference in the second eddy flow catalytic reaction chamber (8-3) from bottom to top with the mode spiral of the circle of contact,
Each vortex atomizing nozzle (7) connects the ammonia feed system be arranged on outside desulfurizing tower by pipeline.
2. double-rotation type SCR denitration device according to claim 1, is characterized in that: described flue gas pass into pipeline (11), the first eddy flow catalytic reaction chamber (8-2) and the second eddy flow catalytic reaction chamber (8-3) cross section for circular.
3. double-rotation type SCR denitration device according to claim 1 and 2, is characterized in that: described ammonia feed system comprise liquid ammonia storage tank (6) that pipeline successively connects, for liquefied ammonia is evaporated liquid ammonia evaporator (5), for ammonia is cushioned ammonia dashpot (4), for ammonia/air mixer (3) of mixing ammonia and air and the dilution air (2) for diluting ammonia;
Described ammonia/air mixer (3) by one with magnetic valve (12) pipeline connect vortex atomizing nozzle (7); The outside of described denitrating tower body is also provided with a escaping of ammonia feedback control system (1), and the exhanst gas outlet of described denitrating tower bodies top is provided with the probe (13) for detecting ammonia density; The concentration data of the ammonia that the escaping of ammonia feedback control system (1) detects according to probe (13), control the aperture of ammonia feed system and magnetic valve (12), for controlling vortex atomizing nozzle (7) in real time to the straying quatity of ammonia, make to spray into the ammonia amount in exhaust gases passes and NO
xconcentration matches.
4. double-rotation type SCR denitration device according to claim 3, it is characterized in that: the bottom of described denitrating tower body is provided with closed dust stratification case (10), for the dust stratification dropped down by the board-like catalyst layer of storage first (8) and the second board-like catalyst layer (8-1).
5. double-rotation type SCR denitration device according to claim 4, is characterized in that: the bottom of described closed dust stratification case (10) is provided with ash-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895330.1U CN205145982U (en) | 2015-11-11 | 2015-11-11 | Bispin formula SCR denitrification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895330.1U CN205145982U (en) | 2015-11-11 | 2015-11-11 | Bispin formula SCR denitrification facility |
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| Publication Number | Publication Date |
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| CN205145982U true CN205145982U (en) | 2016-04-13 |
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ID=55681725
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|---|---|---|---|
| CN201520895330.1U Expired - Fee Related CN205145982U (en) | 2015-11-11 | 2015-11-11 | Bispin formula SCR denitrification facility |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289301A (en) * | 2015-11-11 | 2016-02-03 | 华南理工大学 | Double-rotation SCR denitration method and apparatus thereof |
| CN105749710A (en) * | 2016-05-06 | 2016-07-13 | 哈尔滨工程大学 | Marine exhaust gas SOx removal device for rotary spraying refluxing bubble tower |
| CN110097730A (en) * | 2019-05-13 | 2019-08-06 | 西南大学 | A kind of industrial fire warning device |
-
2015
- 2015-11-11 CN CN201520895330.1U patent/CN205145982U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289301A (en) * | 2015-11-11 | 2016-02-03 | 华南理工大学 | Double-rotation SCR denitration method and apparatus thereof |
| CN105289301B (en) * | 2015-11-11 | 2018-07-20 | 华南理工大学 | A kind of double-rotation type SCR denitration method and its device |
| CN105749710A (en) * | 2016-05-06 | 2016-07-13 | 哈尔滨工程大学 | Marine exhaust gas SOx removal device for rotary spraying refluxing bubble tower |
| CN110097730A (en) * | 2019-05-13 | 2019-08-06 | 西南大学 | A kind of industrial fire warning device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20191111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |