CN109323274A - It is a kind of can denitration heat accumulating type incineration device - Google Patents

It is a kind of can denitration heat accumulating type incineration device Download PDF

Info

Publication number
CN109323274A
CN109323274A CN201811368129.2A CN201811368129A CN109323274A CN 109323274 A CN109323274 A CN 109323274A CN 201811368129 A CN201811368129 A CN 201811368129A CN 109323274 A CN109323274 A CN 109323274A
Authority
CN
China
Prior art keywords
reducing agent
gas
combustion chamber
heat accumulating
accumulating type
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
CN201811368129.2A
Other languages
Chinese (zh)
Inventor
孟莹
焦发存
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.)
Huainan Prefa Environmental Technology Co Ltd
Original Assignee
Huainan Prefa Environmental Technology 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 Huainan Prefa Environmental Technology Co Ltd filed Critical Huainan Prefa Environmental Technology Co Ltd
Priority to CN201811368129.2A priority Critical patent/CN109323274A/en
Publication of CN109323274A publication Critical patent/CN109323274A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases

Abstract

The present invention relates to organic exhaust gas burning facility technical fields, more particularly to it is a kind of can denitration heat accumulating type incineration device, including combustion chamber, multiple regenerative chambers, multiple gas storehouses, multiple air intake branches, gas feed poppet, admission line, multiple exhaust branch pipes, gas discharge outlet poppet, exhaust pipe, online NOx concentration monitor, reducing agent storage device, reducing agent injection equipment and metering pump, the upper end of the upper end of multiple regenerative chambers and combustion chamber, multiple gas storehouses is connected with the lower end of each regenerative chamber respectively.The present invention overcomes the deficiencies in the prior art, and design is rationally, compact-sized, while pyrolytic organic exhaust gas, the NOx composition in removing exhaust gas can be efficiently gone, so that organic waste-gas purification is more thorough.

Description

It is a kind of can denitration heat accumulating type incineration device
Technical field
The present invention relates to organic exhaust gas burning facility technical fields, and in particular to it is a kind of can denitration heat accumulating type incineration dress It sets.
Background technique
Organic solvent is widely used in coating as important raw materials for production, prints, packaging, electronics, the row such as pharmacy Industry, usage amount are with the continuous development of industry also improving rapidly.And organic solvent can be volatilized constantly in use Come, forms organic exhaust gas and be emitted into atmosphere, and ultimately form photochemical fog.Most substances in organic exhaust gas are danger Evil human health, poisoning symptom show as respiratory disease more, can lead to acute poisoning very under high-concentration organic waste gas effect To death.
Current most thorough processing method is incineration method, and wherein heat accumulating type incineration device is again with its high removal efficiency and low fortune Row cost becomes preferred organic waste gas treatment method, utilizes the principle of high-temperature oxydation, the volatility in organic exhaust gas is had Machine compound (VOCs) combustion decomposition at a high temperature of 760 DEG C or more then is emitted into atmosphere, and tail gas is taken at CO2 and H2O The heat of band is recycled by accumulation of heat material, for the preheating in next stage, to reduce the fuel materials of system.
However having organic compounds containing nitrogen ingredient in some industry organic exhaust gas, these compounds are in pyrolysis process Nitrogen oxides (NOx) can be generated, being emitted into atmosphere without improvement can participate in forming photochemical fog and acid rain, directly endanger people Body health.Current RTO cannot be effectively removed NOx.
Patent disclosure application number 200310124517.3 discloses a kind of selectivity in the way of regenerative heat recuperation and urges Agent and without catalyst reduction device.But the device can not adjust the dosage of reducing agent according to the NOx concentration in exhaust gas in real time, Therefore it is easy to cause reducing agent dosage insufficient, NOx removal efficiency is relatively low, or leads to that reducing agent dosage is excessive and generates as ammonia is escaped The secondary pollutions such as ease.In addition, the device does not consider the abundant of reducing agent residence time in the combustion chamber and reducing agent and exhaust gas Mixing, therefore the removal efficiency of practical NOx is relatively low.For this purpose, it is proposed that it is a kind of can denitration heat accumulating type incineration device.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides it is a kind of can denitration heat accumulating type incineration device, overcome existing The deficiency of technology, design is rationally, compact-sized, while pyrolytic organic exhaust gas, can efficiently go NOx in removing exhaust gas at Point, so that organic waste-gas purification is more thorough.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
It is a kind of can denitration heat accumulating type incineration device, including combustion chamber, multiple regenerative chambers, multiple gas storehouses, multiple air inlet branch Pipe, gas feed poppet, admission line, multiple exhaust branch pipes, gas discharge outlet poppet, exhaust pipe, online NOx concentration Monitor, reducing agent storage device, reducing agent injection equipment and metering pump, it is characterised in that: the upper end of multiple regenerative chambers It is connected respectively with the lower end of each regenerative chamber with the upper end of combustion chamber, multiple gas storehouses, multiple air intake branches It is respectively arranged in the lower end of each gas storehouse, and multiple air intake branches are connected by admission line, are pacified on the air intake branch Equipped with gas feed poppet, multiple exhaust branch pipes are separately mounted to the lower end of each gas storehouse, and multiple exhaust branch pipes pass through exhaust Pipeline is connected, and is equipped with gas discharge outlet poppet on the exhaust branch pipe, the online NOx concentration monitor be mounted on into In feed channel, the reducing agent storage device is connected by metering pump with transmission pipeline with reducing agent injection equipment, and reducing agent The output end of injection equipment is connected with combustion chamber.
Preferably, spoiler is installed on vertical direction in the middle part of the inner cavity of the combustion chamber, gas is made to flow through combustion chamber When be sufficiently mixed and contact with the reducing agent of penetrating.
Preferably, NOx concentration monitor is installed on the exhaust pipe, by monitor NOx minimum concentration of emission come Adjust the amount of injection of reducing agent, it is ensured that under the highest removal efficiency of NOx, the dosage of reducing agent is minimum, escapes so as to avoid ammonia Secondary pollution caused by ease.
Preferably, the output end of the reducing agent injection equipment is connected with multiple injection branch pipes, and multiple injection branch pipes The other end extends into the inner cavity of combustion chamber and is located at the surface of each regenerative chamber, is equipped with injection valve on the injection branch pipe Door, it is ensured that reducing agent keeps the longer residence time in exhaust gas flow direction.
Preferably, the opening time of the air intake valve below the corresponding regenerative chamber of the opening time of the injection valve Unanimously, and injection valve and air intake valve keep identical switching cycle, and cooperation reducing agent injection equipment extends the stagnant of reducing agent Stay the time.
Preferably, main air blower is installed on the admission line, quickly send nitrogenous organic exhaust gas through main air blower collection Enter in combustion chamber.
Preferably, it is provided with compressed air inflow entrance on the reducing agent injection equipment, the compressed air being passed through will restore Agent is atomized and is blown into combustion chamber, can keep coming into full contact with for reducing agent and exhaust gas.
(3) beneficial effect
The embodiment of the invention provides it is a kind of can denitration heat accumulating type incineration device.Have it is following the utility model has the advantages that
1, by combustion chamber, multiple regenerative chambers, multiple gas storehouses, multiple gas discharge outlet poppets, exhaust pipe, online The composite structure of NOx concentration monitor, reducing agent injection equipment and metering pump can effectively purify the indoor organic exhaust gas of burning, Minimum concentration of emission by monitoring NOx adjusts the amount of injection of reducing agent using metering pump, it is ensured that removes effect in the highest of NOx Under rate, the dosage of reducing agent is minimum, so as to avoid secondary pollution caused by the escaping of ammonia.
2, pass through combustion chamber, multiple regenerative chambers, multiple gas storehouses, multiple gas feed poppets, admission line and main air blower Composite structure, while gas feed poppet is opened, injection valve is synchronous to be opened, the opening time of injection valve and its The opening time of air intake valve below corresponding regenerative chamber is consistent, and keeps identical switching cycle with air intake valve, thus It can ensure that reducing agent keeps the longer residence time in exhaust gas flow direction, while effective cleaning organic waste gas, efficiently Remove the NOx in removing exhaust gas.
3, by the compressed air inflow entrance being arranged on reducing agent injection equipment, compressed air can be passed through by reducing agent mist Change, realize uniformly sprinkling, guarantees that gas is sufficiently mixed when flowing through combustion chamber with the reducing agent of penetrating and contact, improve the effect of denitration Rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is a kind of embodiment flow diagram of the invention.
In figure: combustion chamber 1, the first regenerative chamber 2a, the second regenerative chamber 2b, the first gas storehouse 3a, the second gas storehouse 3b, the first air inlet Valve 4a, the second air intake valve 4b, first exhaust valve 5a, second exhaust valve 5b, main air blower 6, spoiler 7, reducing agent are deposited Storage device 8, metering pump 9, reducing agent injection equipment 10, the first injection valve 11a, second injection valve 11b, NOx on-line monitoring Instrument 12, the first reductant nozzle 13a, the second reductant nozzle 13b, admission line 14, exhaust pipe 15.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Referring to attached drawing, it is a kind of can denitration heat accumulating type incineration device, which can be warming up to 850 DEG C or more, including burning It is room 1, multiple regenerative chamber 2a and 2b, multiple gas storehouse 3a and 3b, multiple gas feed poppet 4a and 4b, admission line 14, multiple Gas discharge outlet poppet 5a and 5b, exhaust pipe 15, online NOx concentration monitor 12, reducing agent storage device 8, reducing agent Injection equipment 10 and metering pump 9;
The combustion chamber 1 is equipped with burner in inner cavity;Multiple regenerative chamber 2a and 2b, the upper end are connected to combustion chamber 1; Multiple gas storehouse 3a and 3b, the upper end are connected to the lower end of regenerative chamber 2a and 2b;Multiple air intake valve 4a and 4b, one end by into Gas branch pipe is connect with gas storehouse, and the other end is connect with admission line 14;Multiple drain tap 5a and 5b, one end pass through exhaust branch pipe It is connect with gas storehouse, the other end is connect with exhaust pipe 15.
Reductant nozzle 13a and 13b, nozzle 13a and 13b and reducing agent injection equipment are equipped in the two sides of combustion chamber 1 10, by injection branch pipe connection, are equipped with injection valve 11a and 11b, above-mentioned reducing agent injection equipment 10 on the injection branch pipe It is connect by transmission pipeline with reducing agent storage device 8, metering pump 9, above-mentioned 9 basis of metering pump is installed on transmission pipeline The NOx concentration that NOx on-line computing model 12 monitors adjusts the conveying capacity of reducing agent.
Spoiler 7 is installed on vertical direction in the middle part of the inner cavity of the combustion chamber 1, make gas when flowing through combustion chamber 1 with The reducing agent of penetrating is sufficiently mixed contact;NOx concentration monitor 12 is installed on the exhaust pipe 15, passes through monitoring NOx's Minimum concentration of emission adjusts the amount of injection of reducing agent, it is ensured that and under the highest removal efficiency of NOx, the dosage of reducing agent is minimum, So as to avoid secondary pollution caused by the escaping of ammonia;The output end of the reducing agent injection equipment 10 is connected with multiple injection branch Pipe, and the other end of multiple injection branch pipes extends into the inner cavity of combustion chamber 1 and is located at the surface of each regenerative chamber 2a and 2b, Injection valve 11a and 11b are installed, it is ensured that reducing agent keeps longer delay in exhaust gas flow direction on the injection branch pipe Time;The injection valve 11a and the air intake valve 4a that the opening time of 11b is corresponding are consistent with the opening time of 4b, and Injection valve 11a and 11b and air intake valve 4a and 4b keep identical switching cycle, and cooperation reducing agent injection equipment 10 extends also The residence time of former agent;Main air blower 6 is installed on the admission line 14, quickly receives nitrogenous organic exhaust gas through main air blower 6 Collection is sent into combustion chamber 1;It is provided with compressed air inflow entrance on the reducing agent injection equipment 10, the compressed air being passed through will be also Former agent is atomized and is blown into combustion chamber 1, can keep coming into full contact with for reducing agent and exhaust gas.
As shown in Figure 1, it is a kind of can denitration heat accumulating type incineration device working principle it is as follows:
It is the first stage first, nitrogenous organic exhaust gas is collected through main air blower 6 and flows into admission line 14, the first air intake valve 4a It is opened with second exhaust valve 5b, the second air intake valve 4b and first exhaust valve 5a are closed, and exhaust gas is made to pass through the first gas storehouse 3a And first flowing in combustion chamber 1 after regenerative chamber 2a, the first injection valve 11a is opened at this time, and the second injection valve 11b is closed, reduction Agent is injected into combustion chamber 1, exhaust gas from the first reductant nozzle 13a being located at right above the first regenerative chamber 2a through injection equipment 10 It is sufficiently mixed under the action of spoiler 7 with reducing agent, is burnt and purified with 850-1200 degree in combustion chamber 1, after above-mentioned purification High-temperature gas by flowing into exhaust pipe 15 after the second regenerative chamber 2b and the second gas storehouse 3b, arrange to outside.
It is followed by second stage, the second air intake valve 4b and first exhaust valve 5a are opened, the first air intake valve 4a and the Two drain tap 5b are closed, and exhaust gas is made to pass through flowing in combustion chamber 1 after the second gas storehouse 3b and the second regenerative chamber 2b, at this time the second injection Valve 11b is opened, and the first injection valve 11a is closed, and reducing agent is through injection equipment 10 from right above the second regenerative chamber 2b Second reductant nozzle 13b is injected into combustion chamber 1, exhaust gas and reducing agent and is sufficiently mixed under the action of spoiler 7, is burning It is burnt and is purified with 850-1200 degree in room 1, after above-mentioned purified high-temperature gas passes through the first regenerative chamber 2a and the first gas storehouse 3a Exhaust pipe 15 is flowed into, is arranged to outside.
Above-mentioned first stage and second stage merge composition a cycle, and cycle alternation carries out.In whole mistakes Cheng Zhong, the NOx on-line computing model being mounted on exhaust pipe 15 carry out real-time monitoring to the NOx concentration in purified gas. The amount of injection of reducing agent is gradually increased to NOx concentration when no longer reducing and maintains the amount of injection, is at this time the minimum injection of reducing agent Amount.When NOx concentration increases, accordingly increase reducing agent the amount of injection by metering pump 9 again no longer reduces to NOx concentration;When NOx is dense When degree reduces, reducing agent the amount of injection is accordingly reduced by metering pump 9 and has just been increased to NOx concentration.
It is provided with compressed air inflow entrance on reducing agent injection equipment 10 of the invention, the compressed air being passed through is by reducing agent It is atomized and is blown into combustion chamber 1, coming into full contact with for reducing agent and exhaust gas can be kept.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features;And these modification or Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (7)

1. one kind can denitration heat accumulating type incineration device, including combustion chamber, multiple regenerative chambers, multiple gas storehouses, multiple air intake branches, Gas feed poppet, admission line, multiple exhaust branch pipes, gas discharge outlet poppet, exhaust pipe, online NOx concentration prison Survey instrument, reducing agent storage device, reducing agent injection equipment and metering pump, it is characterised in that: the upper end of multiple regenerative chambers with The upper end of combustion chamber, multiple gas storehouses is connected with the lower end of each regenerative chamber respectively, multiple air intake branches point It is not installed on the lower end of each gas storehouse, and multiple air intake branches are connected by admission line, are installed on the air intake branch There is gas feed poppet, multiple exhaust branch pipes are separately mounted to the lower end of each gas storehouse, and multiple exhaust branch pipes pass through exhaust pipe Road is connected, and gas discharge outlet poppet is equipped on the exhaust branch pipe, and the online NOx concentration monitor is mounted on air inlet On pipeline, the reducing agent storage device is connected by metering pump with transmission pipeline with reducing agent injection equipment, and reducing agent sprays The output end for penetrating mechanism is connected with combustion chamber.
2. one kind as described in claim 1 can denitration heat accumulating type incineration device, it is characterised in that: the inner cavity of the combustion chamber Spoiler is installed on the vertical direction of middle part.
3. one kind as described in claim 1 can denitration heat accumulating type incineration device, it is characterised in that: pacify on the exhaust pipe Equipped with NOx concentration monitor.
4. one kind as described in claim 1 can denitration heat accumulating type incineration device, it is characterised in that: the reducing agent spraying machine The output end of structure is connected with multiple injection branch pipes, and the other end of multiple injection branch pipes extends into inner cavity and the difference position of combustion chamber In being equipped with injection valve on the surface of each regenerative chamber, the injection branch pipe.
5. one kind as claimed in claim 4 can denitration heat accumulating type incineration device, it is characterised in that: the injection valve is beaten The opening time of air intake valve below the corresponding regenerative chamber of ETAD expected time of arrival and departure is consistent, and injection valve keeps phase with air intake valve Same switching cycle.
6. one kind as described in claim 1 can denitration heat accumulating type incineration device, it is characterised in that: pacify on the admission line Equipped with main air blower.
7. one kind as described in claim 1 can denitration heat accumulating type incineration device, it is characterised in that: the reducing agent spraying machine Compressed air inflow entrance is provided on structure.
CN201811368129.2A 2018-11-16 2018-11-16 It is a kind of can denitration heat accumulating type incineration device Pending CN109323274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811368129.2A CN109323274A (en) 2018-11-16 2018-11-16 It is a kind of can denitration heat accumulating type incineration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811368129.2A CN109323274A (en) 2018-11-16 2018-11-16 It is a kind of can denitration heat accumulating type incineration device

Publications (1)

Publication Number Publication Date
CN109323274A true CN109323274A (en) 2019-02-12

Family

ID=65258272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811368129.2A Pending CN109323274A (en) 2018-11-16 2018-11-16 It is a kind of can denitration heat accumulating type incineration device

Country Status (1)

Country Link
CN (1) CN109323274A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110252036A (en) * 2019-06-27 2019-09-20 沈阳铝镁科技有限公司 Baking flue gas defluorinate, dedusting, depitching cigarette, desulphurization and denitration integral treatment method and system
CN111189056A (en) * 2020-01-16 2020-05-22 中国科学院过程工程研究所 Handle heat accumulation burner that contains chlorine volatile organic compounds waste gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110252036A (en) * 2019-06-27 2019-09-20 沈阳铝镁科技有限公司 Baking flue gas defluorinate, dedusting, depitching cigarette, desulphurization and denitration integral treatment method and system
CN111189056A (en) * 2020-01-16 2020-05-22 中国科学院过程工程研究所 Handle heat accumulation burner that contains chlorine volatile organic compounds waste gas

Similar Documents

Publication Publication Date Title
CN206652386U (en) A kind of minimum discharge purifier of burning city domestic garbage flue gas
CN105107349A (en) Coke oven flue gas desulfurization and denitrification purification process and device
CN109323274A (en) It is a kind of can denitration heat accumulating type incineration device
CN105126618B (en) A kind of middle low-temperature flue gas integrated processing technique and device
CN105194991B (en) Glass kiln flue gas desulfurization and denitrification system and technique
CN102294171A (en) Flue gas purifying system
CN108465371A (en) One kind being based on minimum discharge fume treatment running gear and processing method
CN109364742A (en) A kind of collaboration of sintering flue gas SCR denitration takes off white device and technique
CN204555717U (en) Warm flue gas SCR denitration device in a kind of cement kiln end
CN109316952A (en) A kind of the flue gas minimum discharge equipment and technique of non-electrical domain
CN203935782U (en) MSW Incineration Plant low-temperature SCR equipment for denitrifying flue gas
CN209714765U (en) A kind of industrial smoke high temperature desulfurizing denitration dust removal system
CN104607015A (en) Multi-pollutant co-purification method and multi-pollutant co-purification system for sintering flue gas
CN205412681U (en) Tail gas desulfurization , denitration, dust removal integration treatment device
CN105727712B (en) A kind of flue gas desulfurization denitration dust-removing integrated equipment of coal-fired ceramic kiln
CN109603539A (en) A kind of industrial smoke high temperature desulfurizing denitration dust removal system and its processing method
CN209213885U (en) It is a kind of can denitration heat accumulating type incineration device
CN202136916U (en) Flue gas purification system
CN106474886A (en) A kind of industrial waste-gas purifier of low temperature plasma joint two-stage dynamic wave
CN109173704A (en) A kind of selective-catalytic-reduction denitrified reactor
CN207261086U (en) Vehicle exhaust spray absorber purifier
CN204996310U (en) Coke oven flue gas SOx/NOx control unites purifier
CN204768221U (en) Cement kiln flue gas SNCR deNOx systems
CN211435768U (en) Flue gas treatment device for semi-dry desulfurization and low-temperature SCR denitration of carbide slag
CN210814723U (en) High-temperature dust removal, desulfurization and denitrification device for cement kiln

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