CN104534487A - Heat storage burning system - Google Patents
Heat storage burning system Download PDFInfo
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- CN104534487A CN104534487A CN201410782855.4A CN201410782855A CN104534487A CN 104534487 A CN104534487 A CN 104534487A CN 201410782855 A CN201410782855 A CN 201410782855A CN 104534487 A CN104534487 A CN 104534487A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a heat storage burning system. The system comprises a heat supply system, a combustion supporting solvent system, a heat storage oxidization system, a gas inlet system, an exhaust system and a smoke spraying system, wherein the heat supply system, the combustion supporting solvent system and the gas inlet system are connected to an inlet of the heat storage oxidization system in series, the exhaust system is connected to an outlet of the heat storage oxidization system in series and connected with the smoke spraying system, a diesel combined heat supply system preheats a heat storage chamber in the heat storage oxidization system, waste gas enters the heat storage chamber through the gas inlet system to be heated and then enters an oxidization chamber in the heat storage oxidization system to be subjected to oxygenolysis, and smoke passes through the exhaust system and is exhausted to the atmosphere after acid gas in the smoke is removed through the smoke spraying system. According to the heat storage burning system, the waste gas is subjected to heat storage oxidization through automatic alternate switching, time is saved, efficiency is improved, heat emission generated after waste gas treatment is reduced, high heat efficiency is achieved, VOCs in the waste gas is high in decomposition rate, and the system is safe and reliable, easy to operate and low in running cost in use.
Description
Technical field
The present invention relates to a kind of setting for VOCs treatment, be specifically related to a kind of accumulation of heat CIU for VOCs treatment.
Background technology
Atmosphere pollution is one of the most outstanding at present environmental problem of China, and industrial waste gas is the important sources of atmosphere pollution; Large capacity industrial waste gas enters air, atmosphere quality must be made to decline, bring serious harm, bring about great losses to national economy to health.The most unmanageable in industrial waste gas is exactly organic exhaust gas, after organic exhaust gas enters human body by respiratory tract and skin, cause temporary and permanent pathology can to the organs and systems such as breathing, blood, liver of people, especially benzopyrenes polycyclic aromatic hydrocarbon can make human body directly carcinogenic, has caused the great attention of the mankind.Various organic compounds can be produced in industrial production, mainly comprise various hydro carbons, alcohols, aldehydes, acids, ketone and amine etc.; These organic exhaust gas can cause atmosphere pollution, are detrimental to health, but also can cause waste, so the process of organic exhaust gas is necessary with purification.
Heat accumulating type oxidation furnace (RTO) utilizes the principle of organic exhaust gas pyrolytic Cheng Shui and carbon dioxide to process the device of organic exhaust gas.Heat accumulating type oxidation furnace is made up of a burner hearth and two or more energy storage bed, for two energy storage beds, two energy storage beds can carry out periodic heat absorption and release, organic exhaust gas enters burner hearth and carries out combustion decomposition after energy storage bed, because organic exhaust gas belongs to flammable explosive gas, if very easily caused danger when excessive concentration exceedes LEL, so the organic exhaust gas concentration controlling to enter heat accumulating type oxidation furnace must control, and the parameter feedback speed of concentration detector is slower, and this situation generally enters the solution of heat accumulating type oxidation furnace time by lengthening airduct prolongation waste gas, but some conditions are limited then cannot lengthen airduct as during the situations such as site area is inadequate, belong to technical barrier for a long time.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of accumulation of heat CIU is provided, this accumulation of heat pyrogenation incinerator system adopts three regenerator in conjunction with control valve, automatically switch in turn and regenerative oxidation is carried out to waste gas, save time, raise the efficiency, and three regenerator are communicated with oxidizing chamber, heat dissipation after effective reduction exhaust-gas treatment, also saves thermal losses when off-gas oxidizing heats up, makes to have the higher thermal efficiency, in waste gas, VOCs resolution ratio is high, safe and reliable during use, simple to operate, easy to maintenance, operating cost is cheap.
In order to solve above technical problem, the invention provides a kind of accumulation of heat CIU, comprise heating system, combustion-supporting solvent system, regenerative oxidation system, gas handling system, gas extraction system and flue gas spray system, gas handling system, combustion-supporting solvent system and gas handling system are connected on the import department of regenerative oxidation system respectively, and it is in parallel between gas handling system, combustion-supporting solvent system and gas handling system, the exit series connection gas extraction system of regenerative oxidation system, gas extraction system connects flue gas spray system, wherein:
Regenerative oxidation system comprises regenerator and oxidizing chamber, and oxidizing chamber is horizontally set on the top of regenerator and is communicated with regenerator, and regenerator is made up of the first regenerator, the second regenerator and the 3rd regenerator that parallel vertical is placed successively; Gas handling system is made up of admission line and the filter be arranged in turn on admission line and spark arrester, admission line is connected in parallel on the bottom of the first regenerator, the second regenerator and the 3rd regenerator respectively by the first air intake control valve, the second air intake control valve and the 3rd air intake control valve, and heating system is by the oil pipe be connected on oxidizing chamber and be arranged on diesel tank and diesel fuel burner on oil pipe and form; Combustion-supporting solvent system is made up of the solvent tank of connecting successively, solvent pump and atomizing lance, and is connected on oxidizing chamber by solvent conduit; Gas extraction system is made up of the chimney of discharge duct, air-introduced machine and discharge duct end, and discharge duct is connected in parallel on the bottom of the first regenerator, the second regenerator and the 3rd regenerator respectively by first row gas control valve, second row gas control valve and the 3rd gas exhausting valve; Flue gas spray system comprise connected in turn by waterpipe alkali lye pond, spray pump and spray column, spray column is arranged on the lower end of chimney; Heating system carries out preheating to regenerator, and waste gas enters into regenerator by gas handling system and heats, and then enters oxidizing chamber and carries out oxidation Decomposition, and the flue gas of generation is by gas extraction system and discharged to air after flue gas spray system removing sour gas.
The technical scheme that the present invention limits further is:
In aforementioned accumulation of heat CIU, oxidizing chamber is also provided with long flame burner and flame detector, the top of oxidizing chamber is provided with venting.
In aforementioned accumulation of heat CIU, gas extraction system also comprises the exhaust gas concentration detector being arranged on admission line import department.
In aforementioned accumulation of heat CIU, filter is made up of water seal arrangement and oil water separator, and the port of export of water seal arrangement connects the entrance point of oil water separator, and the import department being communicated with spray system intermediate water pipeline by water inlet control valve of water seal arrangement.
In aforementioned accumulation of heat CIU, gas handling system is also provided with by-pass flue, by-pass flue one end is connected with the port of export of spark arrester, and the other end is connected with the entrance point of air-introduced machine.
In aforementioned accumulation of heat CIU, the port of export of air-introduced machine is also provided with bypass duct, and the bottom of the first regenerator, the second regenerator and the 3rd regenerator that bypass duct is connected in parallel on respectively by the first bypass control valve, the second bypass control valve and the 3rd bypass control valve.
In aforementioned accumulation of heat CIU, alkali lye pond by pipeline respectively with spray column and air-introduced machine be communicated with.
In aforementioned accumulation of heat CIU, the heat-storing material that regenerator inside is filled is stone matter or ceramic material.
The invention has the beneficial effects as follows:
The present invention is provided with the first regenerator, second regenerator and the 3rd regenerator, first waste gas enter the first regenerator preheating, then enter contained organic matter in oxidizing chamber waste gas and fully carry out oxidation Decomposition, controlled oxidization temperature is carried out by diesel combustion amount, the flue gas produced enters heat-storing material such as thermal storage ceramic in the second regenerator and regenerator on a small quantity and carries out heat exchange, the effect that the 3rd regenerator plays purification the 3rd regenerator is entered by extracting heat exchange a small amount of flue gas out, for accumulation of heat is prepared, first stage first, regenerator was when carrying out air inlet, after small amounts, flue gas is vented in the second regenerator, a small amount of flue gas purifies in the 3rd regenerator, with this, second stage second regenerator is in air inlet, 3rd regenerator is in exhaust, first regenerator is in purification, phase III the 3rd, regenerator was in air inlet, first regenerator is in exhaust, second regenerator is in purification, three regenerator alternate run circular regenerations, each regenerator replaces between the pattern of gas that process at input waste gas and discharging to change, and switching time can adjust according to actual conditions, improve operating efficiency, and heat during regenerator absorption off-gas oxidizing, and the waste gas utilizing this heat to carry out preheating newly to enter, heat dissipation after effective reduction exhaust-gas treatment, saved thermal losses when off-gas oxidizing heats up simultaneously, make waste gas in high-temperature oxidation process, remain the higher thermal efficiency.
Be provided with long flame burner in oxidizing chamber and keep whenever having naked light can not cause detonation due to the change of gas concentration in oxidizing chamber; Oxidizing chamber is built with flame detector, and flame detector and the chain control of long flame burner, when flame detector can't detect flame, gas inlet control valve is closed, and gas exhaust inspecting valve and by-pass governing valve are opened, and ensures to run normally.
Oxidizing chamber top is provided with venting, to prevent flue gas detonation to the damage of body of heater, plays moment pressure release effect, before waste gas access to plant, exhaust piping is equipped with spark arrester simultaneously, can not blasts because of tempering.
Present system is provided with by-pass flue, when system is in abnormal running, waste gas directly enters chimney discharged to air from by-pass flue, also bypass duct is had between air-introduced machine and regenerator, and alkali lye pond is communicated with air-introduced machine and spray column by pipeline, be all the security in order to ensure when running, ensure the normal operating of work.
The present invention, when the flue gas after exhaust-gas treatment is discharged air, is undertaken spraying the sour gas in removing flue gas by alkali lye through flue gas spray system, then discharged to air, decreases the pollution to air, the treatment effeciency of guarantee and precision.
Exhaust gas concentration detector is equipped with before entering RTO system, exhaust piping, when exhaust gas concentration is not within setting range, VOC waste gas do not enter RTO system directly by by-pass flue by chimney discharged to air, avoid repeating and raise the cost, waste resource.
The present invention adopts the cycle of modes of three regenerator three-box types to carry out, exhaust-gas treatment amount is large, the waste gas containing maladorous polluter composition relative complex can be processed, treatment effeciency is high, the resolution ratio of VOCs can reach more than 99%, has the very high thermal efficiency more than 95%, the process waste gas of energy low concentration high flow capacity, device security is reliable, simple to operate, easy to maintenance, and operating cost is low.
Heating system adopts diesel oil to be fuel, and the solvent adopting ferrocene to be dissolved in methyl alcohol in combustion-supporting solvent system comes combustion-supporting, and energy high burning efficiency, reduces the generation of tail gas during burning.
Accompanying drawing explanation
Fig. 1 is the process chart of the embodiment of the present invention;
Fig. 2 is the structural representation of the embodiment of the present invention;
In figure: 1-oxidizing chamber, 2-regenerator, 201-first regenerator, 202-second regenerator, 203-the 3rd regenerator, 3-admission line, 4-water seal arrangement, 5-oil water separator, 6-spark arrester, 701-first air intake control valve, 702-second air intake control valve, 703-the 3rd air intake control valve, 8-oil pipe, 9-diesel tank, 10-diesel fuel burner, 11-solvent tank, 12-solvent pump, 13-atomizing lance, 14-solvent conduit, 15-discharge duct, 16-air-introduced machine, 17-chimney, 1801-first row gas control valve, 1802-second row gas control valve, 1803-the 3rd gas exhausting valve, 19-waterpipe, 20-alkali lye pond, 21-spray pump, 22-spray column, 23-long flame burner, 24-venting, 25-water inlet control valve, 26-by-pass flue, 27-by-pass line, 2801-first bypass control valve (BCV), 2802-second bypass control valve (BCV), 2803-the 3rd bypass control valve (BCV).
Detailed description of the invention
embodiment 1
A kind of accumulation of heat CIU that the present embodiment provides, structure as illustrated in fig. 1 and 2, comprise heating system, combustion-supporting solvent system, regenerative oxidation system, gas handling system, gas extraction system and flue gas spray system, gas handling system, combustion-supporting solvent system and gas handling system are connected on the import department of regenerative oxidation system respectively, and it is in parallel between gas handling system, combustion-supporting solvent system and gas handling system, the exit series connection institute gas extraction system of regenerative oxidation system, gas extraction system connects flue gas spray system, wherein:
Regenerative oxidation system comprises regenerator 2 and oxidizing chamber 1, oxidizing chamber 1 is also provided with long flame burner 23 and flame detector, the top of oxidizing chamber 1 is provided with venting 24, oxidizing chamber 1 is horizontally set on the top of regenerator 2 and is communicated with regenerator 2, the first regenerator 201, second regenerator 202 that regenerator 2 is placed by parallel vertical successively and the 3rd regenerator 203 form, and the heat-storing material that regenerator 2 inside is filled is ceramic material, gas handling system is made up of admission line 3 and the filter be arranged in turn on admission line 3 and spark arrester 6, filter is made up of water seal arrangement 4 and oil water separator 5, the port of export of water seal arrangement 4 connects the entrance point of oil water separator 5, and the import department being communicated with spray system intermediate water pipeline 19 by water inlet control valve 25 of water seal arrangement 4, the exhaust gas concentration detector of admission line 3 import department, admission line 3 is respectively by the first air intake control valve 701, second air intake control valve 702 and the 3rd air intake control valve 703 are connected in parallel on the first regenerator 201, the bottom of the second regenerator 202 and the 3rd regenerator 203, gas handling system is also provided with by-pass flue 26, by-pass flue 26 one end is connected with the port of export of described spark arrester 6, the other end is connected with the entrance point of air-introduced machine 16, heating system is by the oil pipe 8 be connected on oxidizing chamber 1 and be arranged on diesel tank 9 and diesel fuel burner 10 on oil pipe 8 and form, combustion-supporting solvent system is made up of the solvent tank 11 of connecting successively, solvent pump 12 and atomizing lance 13, and is connected on oxidizing chamber 1 by solvent conduit 14, gas extraction system is by discharge duct 15, the chimney 17 of air-introduced machine 16 and discharge duct 15 end forms, the port of export of air-introduced machine 16 is also provided with bypass duct 27, and bypass duct 27 is by the first bypass control valve 2801, second bypass control valve 2802 and the 3rd bypass control valve 2803 are connected in parallel on the first regenerator 201 respectively, the bottom of the second regenerator 202 and the 3rd regenerator 203, discharge duct 15 is by first row gas control valve 1801, second row gas control valve 1802 and the 3rd gas exhausting valve 1803 are connected in parallel on the first regenerator 201 respectively, the bottom of the second regenerator 202 and the 3rd regenerator 203, , flue gas spray system comprise connected in turn by waterpipe 19 alkali lye pond 20, spray pump 21 and spray column 22, spray column 22 is arranged on the lower end of chimney 17, and alkali lye pond 20 is communicated with spray column 22 and air-introduced machine 16 respectively by pipeline,
First air intake control valve 701, second air intake control valve 702, the 3rd air intake control valve 703, first row gas control valve 1801, second row gas control valve 1802, the 3rd gas exhausting valve 1803, first bypass control valve (BCV) 2801, second bypass control valve (BCV) 2802 and the 3rd bypass control valve (BCV) 2803 are equipped with wind speed or air quantity sensor, and the wind speed sensed according to this wind speed or air quantity sensor or air quantity signal, control the keying of each control valve by a gas flow controller, with control by the air-flow of each regenerator 2 be off-gas flows, purifying gas flow or airless.
During concrete enforcement:
First stage, close the first air intake control valve 701, second air intake control valve 702, 3rd air intake control valve 703, first bypass control valve (BCV) 2801, second bypass control valve (BCV) 2802 and the 3rd bypass control valve (BCV) 2803, open first row gas control valve 1801 successively, second row gas control valve 1802 and the 3rd gas exhausting valve 1803, start heating system, utilize diesel oil, diesel fuel burner 10 and long flame burner 23 spray into oxidizing chamber 1 in conjunction with the solvent that ferrocene to be dissolved in methyl alcohol by compressed air by atomizing lance 13 and carry out automatic ignition, by the first regenerator 201, second regenerator 202 and the 3rd regenerator 203 are heated to running status respectively,
Second stage, close other control valves, only open the first air intake control valve 701 first the waste gas of collection is filtered by water seal arrangement 4 and oil water separator 5 to remove dust and oiliness thing and deliver to the first regenerator 201 through admission line again and carry out preheating, be preheating to about 750 DEG C, waste gas after preheating enters oxidizing chamber 1 and carries out oxidation Decomposition, make the contained fully oxidized decomposition of organic matter in waste gas, automatically control oxidate temperature by diesel combustion amount and maintain about 800 DEG C, the thermal storage ceramic that the flue gas produced enters in the second regenerator 202 and the second regenerator 202 on a small quantity carries out heat exchange, also have a small amount of flue gas to enter the 3rd regenerator 203 to play acting as of purification the 3rd regenerator 203 and newly enter heating by the exhaust gases and prepare, now, only open the second air intake control valve 702, second regenerator 202 enters waste gas and then enters oxidizing chamber 1 and be oxidized, and a small amount of flue gas is to the 3rd regenerator 203 heat exchange, open first row gas control valve 1801 and the 3rd air intake control valve 1803 more simultaneously, 3rd storage heater 203 enters waste gas, first regenerator 201 is exhausted, successively by the adjustment alternate cycles between control valve, waste gas is processed, flue gas after heat release delivers to spray column 22 by air-introduced machine 16, connect running water and pour alkali lye pond 20, alkali lye sandblasting in alkali lye pond 20 is removed the sour gas in flue gas by spray pump 21 to the flue gas in spray column 22, finally by chimney 17 qualified discharge in air,
Phase III, close whole system, close the first air intake control valve 701, second air intake control valve 702 and the 3rd air intake control valve 703, open the first bypass control valve (BCV) 2801, second bypass control valve (BCV) 2802 and the 3rd bypass control valve (BCV) 2803 is communicated with outside air by by-pass line 26, allow the temperature of the first regenerator 201, second regenerator 202 and the 3rd regenerator 203 slowly lower to the whole flow process of exhaust-gas treatment.
In addition, waste gas is detected by exhaust gas concentration detector when waste gas is entered, when exhaust gas concentration is not in setting range, waste gas does not enter this system and is directly aspirated through by-pass flue 26 by air-introduced machine 16 and directly drains into chimney 17 then discharged to air, reduces operating cost.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (8)
1. an accumulation of heat CIU, it is characterized in that: comprise heating system, combustion-supporting solvent system, regenerative oxidation system, gas handling system, gas extraction system and flue gas spray system, described gas handling system, combustion-supporting solvent system and gas handling system are connected on the import department of described regenerative oxidation system respectively, and it is in parallel between described gas handling system, combustion-supporting solvent system and gas handling system, the gas extraction system described in the series connection of exit of described regenerative oxidation system, described gas extraction system connects described flue gas spray system, wherein:
Described regenerative oxidation system comprises regenerator (2) and oxidizing chamber (1), described oxidizing chamber (1) is horizontally set on the top of described regenerator (2) and is communicated with described regenerator (2), and described regenerator (2) is made up of the first regenerator (201), the second regenerator (202) and the 3rd regenerator (203) that parallel vertical is placed successively, described gas handling system is made up of admission line (3) and the filter be arranged in turn on admission line (3) and spark arrester (6), described admission line (3) is respectively by the first air intake control valve (701), second air intake control valve (702) and the 3rd air intake control valve (703) are connected in parallel on described the first regenerator (201), the bottom of the second regenerator (202) and the 3rd regenerator (203), described heating system is by the oil pipe (8) be connected on oxidizing chamber (1) and be arranged on the upper diesel tank (9) of oil pipe (8) and diesel fuel burner (10) forms, described combustion-supporting solvent system is made up of the solvent tank of connecting successively (11), solvent pump (12) and atomizing lance (13), and is connected on described oxidizing chamber (1) by solvent conduit (14), described gas extraction system is made up of the chimney (17) of discharge duct (15), air-introduced machine (16) and discharge duct (15) end, and described discharge duct (15) is connected in parallel on the bottom of described the first regenerator (201), the second regenerator (202) and the 3rd regenerator (203) respectively by first row gas control valve (1801), second row gas control valve (1802) and the 3rd gas exhausting valve (1803), described flue gas spray system comprise connected in turn by waterpipe (19) alkali lye pond (20), spray pump (21) and spray column (22), described spray column (22) is arranged on the lower end of described chimney (17), heating system carries out preheating to regenerator (2), waste gas enters into regenerator (2) by gas handling system and heats, then enter oxidizing chamber (1) and carry out oxidation Decomposition, the flue gas of generation is by gas extraction system and discharged to air after flue gas spray system removing sour gas.
2. accumulation of heat CIU according to claim 1, is characterized in that: described oxidizing chamber (1) is also provided with long flame burner (23) and flame detector, and the top of oxidizing chamber (1) is provided with venting (24).
3. accumulation of heat CIU according to claim 1, is characterized in that: described gas extraction system also comprises the exhaust gas concentration detector being arranged on admission line (3) import department.
4. accumulation of heat CIU according to claim 1, it is characterized in that: described filter is made up of water seal arrangement (4) and oil water separator (5), the port of export of water seal arrangement (4) connects the entrance point of oil water separator (5), and the import department being communicated with spray system intermediate water pipeline (19) by water inlet control valve (25) of water seal arrangement (4).
5. accumulation of heat CIU according to claim 1, it is characterized in that: described gas handling system is also provided with by-pass flue (26), by-pass flue (26) one end is connected with the port of export of described spark arrester (6), and the other end is connected with the entrance point of described air-introduced machine (16).
6. accumulation of heat CIU according to claim 1, it is characterized in that: the port of export of described air-introduced machine (16) is also provided with bypass duct (27), and bypass duct (27) is connected in parallel on the bottom of described the first regenerator (201), the second regenerator (202) and the 3rd regenerator (203) respectively by the first bypass control valve (2801), the second bypass control valve (2802) and the 3rd bypass control valve (2803).
7. accumulation of heat CIU according to claim 1, is characterized in that: described alkali lye pond (20) is communicated with described spray column (22) and air-introduced machine (16) respectively by pipeline.
8. accumulation of heat CIU according to claim 1, is characterized in that: the heat-storing material that described regenerator (2) inside is filled is stone matter or ceramic material.
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| CN201410782855.4A CN104534487A (en) | 2014-12-16 | 2014-12-16 | Heat storage burning system |
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| CN201410782855.4A CN104534487A (en) | 2014-12-16 | 2014-12-16 | Heat storage burning system |
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| CN105674302A (en) * | 2016-04-15 | 2016-06-15 | 马怡鑫 | Improved heat accumulation incinerator |
| CN106556017A (en) * | 2016-11-11 | 2017-04-05 | 江苏中科睿赛污染控制工程有限公司 | The control system and its operational approach of organic waste gas catalytic combustion device |
| CN109442442A (en) * | 2018-12-03 | 2019-03-08 | 汕头东风印刷股份有限公司 | A kind of waste gas burning distribution system |
| CN109442440A (en) * | 2018-12-03 | 2019-03-08 | 汕头东风印刷股份有限公司 | A kind of waste gas burning accumulation of heat modularized processing device |
| CN109442441A (en) * | 2018-12-03 | 2019-03-08 | 汕头东风印刷股份有限公司 | A kind of processing system of organic exhaust gas |
| CN109695887A (en) * | 2017-10-20 | 2019-04-30 | 宝武炭材料科技有限公司 | A kind of coal tar processing exhaust treatment system and its treatment process |
| CN109737434A (en) * | 2019-01-15 | 2019-05-10 | 长沙凯天工研院环保服务有限公司 | A kind of coating waste gas heating power oxidation minimum discharge system |
| CN113531561A (en) * | 2021-07-14 | 2021-10-22 | 江苏华宇印涂设备集团有限公司 | RTO processing system |
| CN114198758A (en) * | 2021-12-06 | 2022-03-18 | 江苏瑞鼎环境工程有限公司 | Normal butane method maleic anhydride tail gas is with incineration disposal system |
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