CN104487153A - Exhaust gas-purifying equipment and operation control method therefor - Google Patents
Exhaust gas-purifying equipment and operation control method therefor Download PDFInfo
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- CN104487153A CN104487153A CN201380037794.2A CN201380037794A CN104487153A CN 104487153 A CN104487153 A CN 104487153A CN 201380037794 A CN201380037794 A CN 201380037794A CN 104487153 A CN104487153 A CN 104487153A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8693—After-treatment of removed components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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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
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
- F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
- F23G7/068—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator using regenerative heat recovery means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/02—Arrangements of regenerators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/60—Sorption with dry devices, e.g. beds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15022—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber using pre-purging regenerator beds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Treating Waste Gases (AREA)
- Incineration Of Waste (AREA)
- Chimneys And Flues (AREA)
Abstract
This exhaust gas-purifying equipment (1) comprises: an adsorption removal device (2) provided with an adsorbent capable of adsorbing and desorbing flammable harmful components contained in exhaust gas; a heat-storing exhaust gas-purifying device (4) for burning discharged air containing flammable harmful components that is discharged from the adsorption removal device and purifying the flammable harmful components; piping (34) for supplying discharged air discharged from the adsorption removal device to the heat-storing exhaust gas-purifying device and in which, in order from the upstream side of the piping, a cutoff damper (36) for cutting off the supply of discharged air and an external air intake damper (38) for taking external air into the piping are disposed; and a control device (32) configured so that when the multiple sets of dampers (18a, 18b, 20a, 20b) of the heat-storing exhaust gas-purifying device are simultaneously open, the control device operates the external air intake damper and the cutoff damper so as to open the external air intake damper to take external air into the piping and close the cutoff damper to interrupt the supply of desorption air to the adsorbent in the adsorption removal device, and passes the external air through to the various open dampers.
Description
Technical field
The present invention relates to a kind of off-gas cleaning equipment for purifying the waste gas containing flammable harmful components and method for controlling of operation thereof.
Background technology
From the view point of preventing public hazards, usually the waste gas containing the flammable harmful components such as flammable odor pollutant or VOC of discharging from various production equipment, treatment facility being supplied to after off-gas cleaning equipment carries out harmless treatment and being discharged into air.
An example of this off-gas cleaning equipment is described in patent document 1.In the off-gas cleaning equipment of this patent document 1, for the waste gas containing flammable harmful components, multipair baffle plate to the plurality of regenerator of the heat accumulation type off-gas purifier with multiple regenerator is arranged respectively is opened and closed respectively linkedly, to the high temperature air of from Adsorption device discharging of multiple regenerator supply/discharges containing flammable harmful components, thus these flammable harmful components are removed in burning.
Patent document 1: Japanese Unexamined Patent Publication 2009-18303 publication
Summary of the invention
the problem that invention will solve
But, in above-mentioned existing off-gas cleaning equipment, when making the multipair baffle plate of heat accumulation type off-gas purifier open and close linkedly, need to make these baffle plates become open mode simultaneously, its result, the solution of high temperature containing flammable harmful components of discharging from Adsorption device smoke air likely its flammable harmful components of not burned removal be just discharged to air by heat accumulation type off-gas purifier.
Therefore, the present invention completes to solve the problem points of above-mentioned prior art, its object is to provide a kind of off-gas cleaning equipment and method for controlling of operation thereof, when many groups baffle plate of the heat accumulation type off-gas purifier making off-gas cleaning equipment opens and closes linkedly, when these baffle plates become open mode simultaneously, its flammable harmful components of the not burned removal of the waste gas containing flammable harmful components would not be discharged in air.
for the scheme of dealing with problems
In order to achieve the above object, first invention of the present invention has: Adsorption device, it possesses the adsorbent of the flammable harmful components that can contain in sorption and desorption waste gas, adsorb flammable harmful components by this adsorbent from waste gas, remove flammable harmful components to the waste gas of adsorbent supply containing flammable harmful components, and smoke air by the flammable harmful components being adsorbed in adsorbent to the solution that adsorbent supplies high temperature and carry out desorb; Heat accumulation type off-gas purifier, it makes the discharge air burning containing flammable harmful components of discharging from this Adsorption device to purify flammable harmful components, the combustion chamber that this heat accumulation type off-gas purifier possesses even number regenerator and is connected with this even number regenerator, make the several regenerator of antithesis respectively each many groups baffle plate arranging a pair open and close linkedly, make to burn in a combustion chamber from the discharge air of the some regenerator supplies even number regenerator, thus purify the flammable harmful components contained in this discharge air; Pipe arrangement, it is connected with each regenerator of heat accumulation type off-gas purifier, to the discharge air that the supply of heat accumulation type off-gas purifier is discharged from Adsorption device, above-mentioned pipe arrangement be equipped successively from the upstream of this pipe arrangement blocking discharge the supply of air blocking baffle plate, by extraneous air, the extraneous air be taken in pipe arrangement is taken into baffle plate and is used for supplying the pressure fan of discharging air; And control device, it is when many group baffle plates become open mode simultaneously, be set to open mode and extraneous air be taken into mode that the adsorbent supply solution being set to closed condition to interrupt in pipe arrangement, by blocking baffle plate to Adsorption device smokes air extraneous air to be taken into baffle plate and operate extraneous air and be taken into baffle plate and blocking baffle plate, make the extraneous air that is taken into respectively by the baffle plate of open mode.
According to the present invention formed like this, when when carrying out organizing the switching of the opening and closing of baffle plate, baffle plate becomes open mode simultaneously more, extraneous air is taken into baffle plate and is set to open mode to be taken into the extraneous air not containing flammable harmful components, by blocking baffle plate, the solution being set to closed condition to interrupt to adsorbent supply high temperature smokes air, and make the baffle plate of extraneous air respectively by open mode of importing, therefore, it is possible to prevent its flammable harmful components of the not burned removal of the discharge air containing flammable harmful components to be just discharged in air.
In the first invention of the present invention, preferably, the concentration of the flammable harmful components contained from the discharge air that Adsorption device is discharged is the concentration higher than the concentration of the flammable harmful components contained in the above-mentioned waste gas of Adsorption unit feeding.
According to the present invention formed like this, the concentration of the flammable harmful components contained from the discharge air that Adsorption device is discharged is the concentration higher than the concentration of the flammable harmful components contained in the above-mentioned waste gas of Adsorption unit feeding, therefore, it is possible to burnt efficiently by heat accumulation type off-gas purifier remove flammable harmful components.
First invention of the present invention, preferably, also there is densimeter, the concentration of the flammable harmful components of discharging in air measured by this densimeter, when the concentration of the flammable harmful components in the discharge air measured by this densimeter is more than the concentration preset, control device operation extraneous air is taken into baffle plate, is taken into baffle plate is taken into extraneous air thus dilutes flammable harmful components from extraneous air.
According to the present invention formed like this, the concentration of the flammable harmful components in discharge air is more than the concentration preset, be taken into baffle plate from extraneous air to be taken into extraneous air to dilute, therefore, it is possible to prevent the flammable harmful components excessive concentration of discharge air and blast.
Second invention of the present invention is a kind of method for controlling of operation of off-gas cleaning equipment, and this off-gas cleaning equipment has: Adsorption device, and it possesses the adsorbent of the flammable harmful components that can contain in sorption and desorption waste gas, heat accumulation type off-gas purifier, it makes the discharge air burning containing flammable harmful components of discharging from this Adsorption device to purify flammable harmful components, possesses even number regenerator, the combustion chamber be connected with this even number regenerator and the several regenerator of antithesis each many groups baffle plate arranging a pair respectively, and pipe arrangement, it is connected with each regenerator of heat accumulation type off-gas purifier, to the discharge air that the supply of heat accumulation type off-gas purifier is discharged from Adsorption device, above-mentioned pipe arrangement is equipped with the blocking baffle plate that the supply of air is discharged in blocking successively from the upstream of this pipe arrangement, the extraneous air be taken into by extraneous air in pipe arrangement is taken into baffle plate and is used for supplying the pressure fan of discharging air, the method for controlling of operation of this off-gas cleaning equipment comprises the following steps: adsorb flammable harmful components by this adsorbent from waste gas, remove flammable harmful components to waste gas containing flammable harmful components of the adsorbent supply of Adsorption device, and the solution to adsorbent supply high temperature smokes air and the flammable harmful components being adsorbed in adsorbent is carried out desorb, by the discharge air that above-mentioned pipe arrangement is discharged to the supply of heat accumulation type off-gas treating apparatus from Adsorption device, many groups baffle plate of heat accumulation type off-gas treating apparatus is opened and closed linkedly, makes to burn in a combustion chamber from the discharge air of the some regenerator supplies even number regenerator, thus purify the flammable harmful components contained in this discharge air, and when many group baffle plates become open mode simultaneously, extraneous air is taken into baffle plate to be set to open mode extraneous air is taken in pipe arrangement, by blocking baffle plate, the adsorbent supply solution being set to closed condition to interrupt to Adsorption device smokes air, makes the extraneous air that is taken into respectively by the baffle plate of open mode.
In the second invention of the present invention, preferably, the concentration of the flammable harmful components contained from the discharge air that Adsorption device is discharged is the concentration higher than the concentration of the flammable harmful components contained in the waste gas to Adsorption unit feeding.
In the second invention of the present invention, preferably, off-gas cleaning equipment also has densimeter, the concentration of the flammable harmful components of discharging in air measured by this densimeter, the method for controlling of operation of above-mentioned off-gas cleaning equipment is further comprising the steps of: when the concentration of the flammable harmful components in the discharge air measured by this densimeter is more than the concentration preset, and is taken into baffle plate is taken into extraneous air to dilute flammable harmful components from extraneous air.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the off-gas cleaning equipment representing embodiments of the present invention.
Fig. 2 is the block diagram of the control device of the off-gas cleaning equipment representing embodiments of the present invention.
Fig. 3 is the key diagram of the modification of the heat accumulation type off-gas purifier representing embodiments of the present invention.
Fig. 4 is the overall structure figure of the off-gas cleaning equipment representing another embodiment of the present invention.
Detailed description of the invention
Below, with reference to accompanying drawing, off-gas cleaning equipment and the method for controlling of operation thereof of embodiments of the present invention are described.
First, see figures.1.and.2 the off-gas cleaning equipment that embodiments of the present invention are described and method for controlling of operation thereof.
As shown in Figure 1, Reference numeral 1 represents the off-gas cleaning equipment 1 of embodiments of the present invention, and this off-gas cleaning equipment 1 possesses the heat accumulation type off-gas purifier 4 as the continuous regenerative enrichment facility 2 of Adsorption device and the flammable harmful components of the discharge air removed from the discharge of this continuous regenerative enrichment facility 2 that burns.
Continuous regenerative enrichment facility 2 possesses: adsorbent 6, and they can the flammable harmful components of sorption and desorption; And solution smokes air feeder 8, its solution supplying high temperature to this adsorbent 6 smokes air, for removing flammable harmful components from adsorbent 6.At this, the flammable harmful components contained in waste gas refer to the flammable odor pollutant such as toluene, ethyl acetate or VOC etc.
Continuous regenerative enrichment facility 2 is connected with the pressure fan 10 internally sending into waste gas, makes to supply waste gas to adsorbent 6.
On the other hand, heat accumulation type off-gas purifier 4 possesses these two regenerator of even number regenerator, i.e. regenerator one tower 12 and regenerator two tower 14 and arranges and the combustion chamber 16 be connected between these regenerator.Regenerator one tower 12 possesses to supply baffle plate (damper) 18a of regenerator one tower 12 supply gas and the discharge baffle plate 20a from regenerator one tower 12 Exhaust Gas.Regenerator two tower 14 possesses to the supply baffle plate 18b of regenerator two tower 14 supply gas and the discharge baffle plate 20b from regenerator two tower 14 Exhaust Gas.In addition, in FIG, indicate supply baffle plate 18a and discharge baffle plate 20b and be in open mode, supply baffle plate 18b and discharge the situation that baffle plate 20a is in closed condition.
The adsorbent 6 of continuous regenerative enrichment facility 2 is formed as the cylindrical shape that can rotate carrying the adsorbent such as active carbon, zeolite.Adsorbent 6 possess successively in a rotational direction the flammable harmful components of from waste gas Adsorption binding domain 6a, remove the regeneration zone 6b of flammable harmful components and the cooled region 6c of cooling adsorbent 1 that are adsorbed by adsorbent 6, can by rotating the flammable harmful components of sorption and desorption continuously.
Utilize at the cooled region 6c of adsorbent 6 and send into a part for the waste gas of continuous regenerative enrichment facility 2 to carry out the cooling of adsorbent 6 by pressure fan 10.Cooled region 6c smokes air feeder 8 via pipeline 22 and above-mentioned solution and is connected.
Solution smokes air feeder 8 and possesses mixing chamber 24 and service 26.
Mixing chamber 26 is connected with the combustion chamber 16 of heat accumulation type off-gas purifier 4 via thermal bypass baffle plate 28, is connected with the regeneration zone 6b of adsorbent 6 via service 26.
The air of discharging from cooled region 6c is sent to mixing chamber 24 via pipeline 22, in mixing chamber 24 with mix mutually from the high-temperature gas that combustion chamber 16 supplies via thermal bypass baffle plate 28 and heated, be fed into the regeneration zone 6b of adsorbent 6 via service 26 as making the flammable harmful components being adsorbed in adsorbent 6 smoke air from the solution of adsorbent 6 desorb.
At this, service 26 is provided with temperature sensor 30, control device 32 (with reference to Fig. 2) adjusts the aperture of thermal bypass baffle plate 28 according to the temperature measured by this temperature sensor 30, thus can control the mixing ratio of air and the high-temperature gas supplied from combustion chamber 16 of discharging from cooled region 6c.
The downstream of regeneration zone 6b is connected with discharge line 34, and the discharge air containing the flammable harmful components eliminated at the regeneration zone 6b of adsorbent 6 discharged by this discharge line 34.
The downstream of discharge line 34 is connected with blocking baffle plate 36, can switch passing through and blocking of the discharge air of discharging from the regeneration zone 6b of adsorbent 6.
Be provided with extraneous air can be taken into baffle plate 38 by the extraneous air be taken in discharge line 34 in the downstream of blocking baffle plate 36, the downstream being also taken into baffle plate 38 at extraneous air is provided with pressure fan 40.The suction force of this pressure fan 40 is utilized to blow to discharge air.
As mentioned above, from upstream, be equipped with blocking baffle plate 36, extraneous air at discharge line 34 and be taken into baffle plate 38, pressure fan 40, be connected to regenerator one tower 12 via bifurcated and be connected with regenerator one tower 12 of heat accumulation type off-gas purifier 4 and the waste gas supply port of regenerator two tower 14 respectively with two supply baffle plates 18a, 18b with two roads, femoral canal 42 of regenerator two tower 14.
The outlet port of regenerator one tower 12 and regenerator two tower 14 discharges baffle plate 20a, 20b via two and two roads, femoral canal 44 are connected to discharge duct 46.
Discharge duct 46 is connected with combustion chamber 16 by the thermal bypass baffle plate 48 that can open and close.Temperature sensor 50,52 is respectively arranged with at regenerator one tower 12 and regenerator two tower 14, when the temperature measured by these temperature sensors 50,52 has exceeded the temperature of regulation, by control device 32, thermal bypass baffle plate 48 can be set to open mode and release remaining heat from discharge duct 46.
Be equipped with the densimeter 54 of the concentration measuring flammable harmful components at discharge line 34, control device 32 (with reference to Fig. 2) controls the opening and closing of interdicting baffle plate 36 according to the concentration of the flammable harmful components measured by this densimeter 54.
In addition, be provided with burner 56 in combustion chamber 16 and measure the temperature sensor 58 of the temperature in combustion chamber 16.Temperature according to being measured by said temperature sensor 50,52 carries out the igniting of this burner 56 and flame-out control.In addition, temperature sensor 58 detects the exception rising of the temperature of combustion chamber 16.
Further, temperature sensor 60,62 is respectively arranged with in two roads, femoral canal 42 and two roads, femoral canal 44.
At this, as shown in Figure 2, by by temperature sensor 30, densimeter 54, temperature sensor 50,52, the measured value measured of temperature sensor 58 and temperature sensor 60,62 is input to control device 32, by control device 32 according to these measured values, control thermal bypass baffle plate 28, blocking baffle plate 36, thermal bypass baffle plate 48, burner 56, supply baffle plate 18a, 18b as described later and discharge baffle plate 20a, 20b.
Then, the method for controlling of operation of the off-gas cleaning equipment of above-mentioned present embodiment is described.
When the waste gas containing flammable harmful components being sent into continuous regenerative enrichment facility 2 by pressure fan 10, waste gas is discharged to outside atmosphere by Adsorption after flammable harmful components at the binding domain 6a of adsorbent 6 of rotation.
The flammable harmful components being adsorbed in adsorbent 6 are sent to regeneration zone 6b by rotation, and be desorbed at regeneration zone 6b and remove from adsorbent 6 desorb with air, this solution smokes the service 26 that air smokes air feeder 8 from solution and is supplied to.Being included in solution from the flammable harmful components of adsorbent 6 removal smokes air, discharges to discharge line 34 as the discharge air containing flammable harmful components.At this, compared with the waste gas supplied to continuous regenerative enrichment facility 2, discharge the flammable harmful components that air contains higher concentration.
To be cooled by waste gas at cooled region 6c by warmed-up adsorbent 6 at regeneration zone 6b thus become the state can adsorbing flammable harmful components efficiently.
The air of discharging from cooled region 6c mixes mutually with the high-temperature gas supplied from combustion chamber 16 and after being heated, is fed into the regeneration zone 6b of adsorbent 6 via service 26 mixing chamber 24.
The discharge air containing flammable harmful components being discharged to discharge line 34 is taken into the supply baffle plate 18a of baffle plate 38, pressure fan 40, two road, femoral canal 42 and open mode by extraneous air successively via the blocking baffle plate 36 of open mode and is fed into regenerator one tower 12 of heat accumulation type off-gas purifier 4.
Discharge air heated in regenerator one tower 12 after flowing in combustion chamber 16 and the flammable harmful components of burned removal thus be cleaned.Combustion chamber 16 is provided with burner 10a, removes the temperature of flammable harmful components therefore, it is possible to the temperature of combustion chamber 16 be maintained to burn fully.Purified gas in regenerator two tower 14 after accumulation of heat, is discharged from discharge duct 46 by the exhaust screen 20b of open mode and two roads, femoral canal 44 successively.
At this, in heat accumulation type off-gas purifier 4, in order to effectively utilize the heat extraction of accumulation of heat in regenerator one tower 12 and regenerator two tower 14, need the flow direction switching Exhaust Gas in process Exhaust Gas having been carried out to the set time afterwards.That is, need to make the Exhaust Gas according to the sequential flowing of regenerator one tower 12 → combustion chamber 16 → regenerator two tower 14 switch the opening and closing state supplying baffle plate 18a, 18b and discharge baffle plate 20a, 20b according to the mode of the sequential flowing of regenerator two tower 14 → combustion chamber 16 → regenerator one tower 12.
Also can not according to the processing time, and according to the difference of the Exhaust Gas inlet temperature T1 measured by the temperature sensor 60 being arranged at two roads, femoral canal 42 with the Exhaust Gas outlet temperature T2 measured by the temperature sensor 62 being arranged at two roads, femoral canal 44, carry out the switching of the flow direction of Exhaust Gas.
The switching supplying baffle plate 18a, 18b and discharge baffle plate 20a, 20b is carried out according to following step.First, extraneous air is taken into baffle plate 38 be set to open mode and be taken into extraneous air.
Then, thermal bypass baffle plate 28 and blocking baffle plate 36 are set to closed condition, interrupt supplying solution to adsorbent 6 and smoke air.Then, close supply baffle plate 18a and discharge baffle plate 20b, and open supply baffle plate 18b and discharge baffle plate 20a, switching the circulating direction of gas.
After switching completes, thermal bypass baffle plate 28 and blocking baffle plate 36 are set to open mode and again start to supply solution to adsorbent 6 and smoke air, extraneous air is taken into baffle plate 38 and is set to closed condition to stop and is taken into extraneous air.Thus, discharge air from the supply baffle plate 18b of open mode via regenerator two tower 14 flowing in combustion chamber 16 the flammable harmful components of burned removal, eliminate flammable harmful components and the gas that purified is discharged from discharge duct 46 by the discharge baffle plate 20 of regenerator one tower 12, open mode and two roads, femoral canal 44 successively.
From supply baffle plate 18a with discharge baffle plate 20b and be in closed condition, supply baffle plate 18b and discharge baffle plate 20a and be in open mode to supply baffle plate 18a with discharge baffle plate 20b and be in open mode, supply baffle plate 18b and discharge baffle plate 20a that to be in the situation that closed condition carries out switching also be same step.
Make supply baffle plate 18a like this, 18b and discharge baffle plate 20a, when 20b opens and closes to switch linkedly, at supply baffle plate 18a, 18b and discharge baffle plate 20a, when 20b becomes open mode simultaneously, blocking baffle plate 36 can be set to closed condition to interrupt and supply solution to adsorbent 6 and smoke air, and extraneous air is taken into baffle plate 38 and is set to open mode to be taken into the extraneous air not containing flammable harmful components, make the extraneous air of importing respectively by the supply baffle plate 18a of open mode, 18b and discharge baffle plate 20a, 20b, therefore, it is possible to prevent its flammable harmful components of the not burned removal of the discharge air containing flammable harmful components to be just discharged in air.In addition, can promptly carry out by simple structure and a small amount of operation the switching supplying baffle plate 18a, 18b and discharge baffle plate 20a, 20b.
In addition, thermal bypass baffle plate 28 can not also be set to closed condition just to make supply baffle plate 18a, 18b and discharge baffle plate 20a, 20b to open and close linkedly and switch.
The concentration of the flammable harmful components of discharging in air can be measured by densimeter 54, when the concentration measured is more than the concentration preset, regulate extraneous air to be taken into the aperture of baffle plate 38, supply extraneous air to discharge air thus dilute flammable harmful components.Thus, in heat accumulation type off-gas purifier 4, the excessive concentration of the flammable harmful components of discharging air can be prevented and blast.
According to the off-gas cleaning equipment 1 of above-mentioned embodiments of the present invention and the method for controlling of operation of this off-gas cleaning equipment 1, carrying out organizing baffle plate more, namely baffle plate 18a is supplied, 18b and discharge baffle plate 20a, during the switching of the opening and closing of 20b, when becoming open mode as the baffle plate switching object simultaneously, extraneous air can be taken into baffle plate 38 and be set to open mode to be taken into extraneous air, by blocking baffle plate 36, the solution being set to closed condition to interrupt to adsorbent supply high temperature smokes air, and make the baffle plate of extraneous air respectively by open mode of importing, therefore, its flammable harmful components of the not burned removal of the discharge air containing flammable harmful components can be prevented just to be discharged in air.
Then, with reference to Fig. 3, off-gas cleaning equipment and the method for controlling of operation thereof of the variation of embodiments of the present invention are described.
When heat accumulation type off-gas purifier possesses the even number regenerator of more than four, the off-gas cleaning equipment of above-mentioned embodiment also can be applied.At this, the heat accumulation type off-gas purifier possessing even number regenerator is the structure do not possessed for carrying out the regenerator purified.
As shown in Figure 3, the heat accumulation type off-gas purifier of this variation possesses four regenerator one towers 70, regenerator two tower 72, regenerator three tower 74 and regenerator four tower 76.In this heat accumulation type off-gas purifier, carry out the switching of baffle plate as follows.In addition, regenerator three tower 74 and regenerator four tower 76 have the structure identical with regenerator two tower 72 with regenerator one tower 70, regenerator three tower 74 possesses supply baffle plate 18c, discharges baffle plate 20c and temperature sensor 78, and regenerator four tower 76 possesses supply baffle plate 18d, discharges baffle plate 20d and temperature sensor 80.
At this, the baffle plate of open mode is only shown, remaining baffle plate is closed condition.
(A) open mode: supply baffle plate 18a, 18b, discharge baffle plate 20c, 20d
The flowing of gas: regenerator one tower 70, regenerator two tower 72 → combustion chamber 16 → regenerator three tower 74, regenerator four tower 76
(B) open mode: supply baffle plate 18b, 18c, discharge baffle plate 20a, 20d
The flowing of gas: regenerator two tower 72, regenerator three tower 74 → combustion chamber 16 → regenerator one tower 70, regenerator four tower 76
(C) open mode: supply baffle plate 18c, 1823d, discharge baffle plate 20a, 20b
The flowing of gas: regenerator three tower 74, regenerator four tower 76 → combustion chamber 16 → regenerator one tower 70, regenerator two tower 72
(D) open mode: supply baffle plate 18a, 18d, discharge baffle plate 20b, 20c
The flowing of gas: regenerator one tower 70, regenerator four tower 76 → combustion chamber 16 → regenerator two tower 76, regenerator three tower 74
Like this, in the heat accumulation type off-gas purifier possessing even number regenerator, even if do not arrange for carrying out the regenerator purified, its flammable harmful components of the not burned removal of the discharge air containing flammable harmful components also can be prevented just to be discharged in air.Thereby, it is possible to make off-gas cleaning equipment more miniaturized.In addition, combustion chamber can be reduced, therefore, it is possible to cut down the fuel being used for holding temperature.
Then, according to Fig. 4, the off-gas cleaning equipment of another embodiment of the present invention is described.The essential structure of the off-gas cleaning equipment of this another embodiment is identical with the off-gas cleaning equipment of the embodiments of the present invention shown in Fig. 1, therefore, adds identical Reference numeral, omit the description same section.Below, the part that main explanation is different.
The off-gas cleaning equipment 80 of another embodiment of the present invention does not possess continuous regenerative enrichment facility, and possesses heat accumulation type off-gas purifier 4.Therefore, the waste gas containing flammable harmful components of discharging from upstream side equipment (not shown) such as various production equipment, treatment facilities is directly discharged to discharge line 34 by off-gas cleaning equipment 80, supplies to heat accumulation type off-gas purifier 4 through this discharge line 34.
The upstream side of the blocking baffle plate 36 of discharge line 34 be provided with temporarily store waste gas store tank 82, store tank 82 at this open and close valve 84 be installed.This open and close valve 84 remains closed condition usually.
Off-gas cleaning equipment 80 is also in the same manner as the equipment of the embodiment of Fig. 1, when supplying baffle plate 18a, 18b and discharge baffle plate 20a, 20b become open mode simultaneously, extraneous air is taken into baffle plate 38 and is set to open mode, in discharge line 34, be taken into extraneous air, blocking baffle plate 36 be set to closed condition and do not supply the waste gas from upstream side equipment to heat accumulation type off-gas purifier 4.Thus, the extraneous air be taken into is by supply baffle plate 18a, 18b of open mode and discharge baffle plate 20a, 20b.
At this moment, be set to open mode by tank 82 will be stored, the waste gas from upstream side equipment temporarily stored and is storing tank 82.Its result, in the off-gas cleaning equipment 80 of present embodiment, even if when baffle plate is all open mode, does not need the running stopping upstream side equipment yet.
Off-gas cleaning equipment 80 according to the present embodiment, even if when not arranging continuous regenerative enrichment facility, also the waste gas containing flammable harmful components of discharging from upstream side equipment can temporarily be stored by storing tank 82, therefore, when baffle plate becomes open mode simultaneously, the waste gas containing flammable harmful components can not its flammable harmful components of not burned removal just be discharged in air.
description of reference numerals
1: off-gas cleaning equipment; 2: continuous regenerative enrichment facility (Adsorption device); 4: heat accumulation type off-gas purifier; 6: adsorbent; 12: regenerator one tower; 14: regenerator two tower; 16: combustion chamber; 28a, 28b, 28c, 28d: supply baffle plate; 30a, 30b, 30c, 30d: discharge baffle plate; 32: control device; 34: discharge line; 36: blocking baffle plate; 38: extraneous air is taken into baffle plate; 40: pressure fan; 42,44: two roads, femoral canal; 46: discharge duct; 54: densimeter.
Claims (6)
1. an off-gas cleaning equipment, has:
Adsorption device, it possesses the adsorbent of the flammable harmful components that can contain in sorption and desorption waste gas, adsorb flammable harmful components by this adsorbent from waste gas, remove flammable harmful components to the waste gas of adsorbent supply containing flammable harmful components, and smoke air by the flammable harmful components being adsorbed in above-mentioned adsorbent to the solution that above-mentioned adsorbent supplies high temperature and carry out desorb;
Heat accumulation type off-gas purifier, it makes the discharge air burning containing flammable harmful components of discharging from this Adsorption device to purify above-mentioned flammable harmful components, the combustion chamber that this heat accumulation type off-gas purifier possesses even number regenerator and is connected with this even number regenerator, make the several regenerator of antithesis respectively each many groups baffle plate arranging a pair open and close linkedly, make to burn in a combustion chamber from the above-mentioned discharge air of the some regenerator supplies even number regenerator, thus purify the flammable harmful components contained in this discharge air;
Pipe arrangement, it is connected with each regenerator of above-mentioned heat accumulation type off-gas purifier, to the discharge air that the supply of above-mentioned heat accumulation type off-gas purifier is discharged from above-mentioned Adsorption device, above-mentioned pipe arrangement be equipped successively from the upstream of this pipe arrangement blocking discharge the supply of air blocking baffle plate, by extraneous air, the extraneous air be taken in pipe arrangement is taken into baffle plate and is used for supplying the pressure fan of discharging air; And
Control device, it is when above-mentioned many group baffle plates become open mode simultaneously, be set to open mode and extraneous air be taken into mode that the adsorbent supply solution being set to closed condition to interrupt in pipe arrangement, by above-mentioned blocking baffle plate to above-mentioned Adsorption device smokes air said external air to be taken into baffle plate and operate said external air and be taken into baffle plate and above-mentioned blocking baffle plate, make the extraneous air that is taken into respectively by the baffle plate of above-mentioned open mode.
2. off-gas cleaning equipment according to claim 1, is characterized in that,
The concentration of the flammable harmful components contained from the discharge air that above-mentioned Adsorption device is discharged is the concentration higher than the concentration of the flammable harmful components contained in the above-mentioned waste gas to above-mentioned Adsorption unit feeding.
3. off-gas cleaning equipment according to claim 1 and 2, is characterized in that,
Also have densimeter, the concentration of the flammable harmful components in above-mentioned discharge air measured by this densimeter,
When the concentration of the flammable harmful components in the above-mentioned discharge air measured by this densimeter is more than the concentration preset, above-mentioned control device operation said external air is taken into baffle plate, is taken into baffle plate is taken into extraneous air thus dilutes flammable harmful components from said external air.
4. a method for controlling of operation for off-gas cleaning equipment, this off-gas cleaning equipment has:
Adsorption device, it possesses the adsorbent of the flammable harmful components that can contain in sorption and desorption waste gas;
Heat accumulation type off-gas purifier, it makes the discharge air burning containing flammable harmful components of discharging from this Adsorption device to purify above-mentioned flammable harmful components, possesses even number regenerator, the combustion chamber be connected with this even number regenerator and the several regenerator of antithesis each many groups baffle plate arranging a pair respectively; And
Pipe arrangement, it is connected with each regenerator of above-mentioned heat accumulation type off-gas purifier, to the discharge air that above-mentioned heat accumulation type off-gas purifier supply is discharged from above-mentioned Adsorption device, above-mentioned pipe arrangement be equipped successively from the upstream of this pipe arrangement blocking discharge the supply of air blocking baffle plate, by extraneous air, the extraneous air be taken in pipe arrangement is taken into baffle plate and is used for supplying the pressure fan of discharging air
The method for controlling of operation of this off-gas cleaning equipment comprises the following steps:
Adsorb flammable harmful components by this adsorbent from waste gas, remove flammable harmful components to waste gas containing flammable harmful components of the adsorbent supply of above-mentioned Adsorption device, and smoke air by the flammable harmful components being adsorbed in above-mentioned adsorbent to the solution that above-mentioned adsorbent supplies high temperature and carry out desorb;
By the discharge air that above-mentioned pipe arrangement is discharged to above-mentioned heat accumulation type off-gas treating apparatus supply from above-mentioned Adsorption device;
Many groups baffle plate of above-mentioned heat accumulation type off-gas treating apparatus is opened and closed linkedly, make to burn in a combustion chamber from the above-mentioned discharge air of the some regenerator supplies even number regenerator, thus purify the flammable harmful components contained in this discharge air; And
When above-mentioned many group baffle plates become open mode simultaneously, said external air is taken into baffle plate to be set to open mode extraneous air is taken in pipe arrangement, the adsorbent supply solution above-mentioned blocking baffle plate being set to closed condition to interrupt to above-mentioned Adsorption device smokes air, makes the extraneous air that is taken into respectively by the baffle plate of above-mentioned open mode.
5. the method for controlling of operation of off-gas cleaning equipment according to claim 4, is characterized in that,
The concentration of the flammable harmful components contained from the discharge air that above-mentioned Adsorption device is discharged is the concentration higher than the concentration of the flammable harmful components contained in the above-mentioned waste gas to above-mentioned Adsorption unit feeding.
6. the method for controlling of operation of the off-gas cleaning equipment according to claim 4 or 5, is characterized in that,
Above-mentioned off-gas cleaning equipment also has densimeter, and the concentration of the flammable harmful components in above-mentioned discharge air measured by this densimeter,
The method for controlling of operation of above-mentioned off-gas cleaning equipment is further comprising the steps of: when the concentration of the flammable harmful components in the above-mentioned discharge air measured by this densimeter is more than the concentration preset, and is taken into baffle plate is taken into extraneous air to dilute flammable harmful components from said external air.
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| JP2012-189143 | 2012-08-29 | ||
| JP2012189143 | 2012-08-29 | ||
| PCT/JP2013/073054 WO2014034742A1 (en) | 2012-08-29 | 2013-08-28 | Exhaust gas-purifying equipment and operation control method therefor |
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| CN104487153B CN104487153B (en) | 2017-02-22 |
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| JP (1) | JP6191832B2 (en) |
| CN (1) | CN104487153B (en) |
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| CN109899809A (en) * | 2017-12-07 | 2019-06-18 | 张荣兴 | Handle the accumulation of heat regenerative oxidator of VOCs exhaust gas |
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| JP6281392B2 (en) * | 2014-04-14 | 2018-02-21 | 東洋紡株式会社 | Organic solvent-containing gas treatment system |
| WO2017183326A1 (en) * | 2016-04-20 | 2017-10-26 | 日産自動車株式会社 | Deodorizing device |
| JP6367454B1 (en) * | 2017-12-01 | 2018-08-01 | 中外炉工業株式会社 | Exhaust gas treatment system |
| AT522330B1 (en) * | 2019-07-05 | 2020-10-15 | Ctp Chemisch Thermische Prozesstechnik Gmbh | Process and system for cleaning exhaust gases laden with organic pollutants |
| NL2023532B1 (en) * | 2019-07-19 | 2021-02-08 | Busser Beheer B V | Mobile degasification system |
| KR102436711B1 (en) * | 2022-01-07 | 2022-08-26 | 주식회사 이앤비코리아 | Concentrate and 2-bed type regenerative thermal oxidizer with purge means |
| DE102023107754A1 (en) | 2023-03-28 | 2024-10-02 | Dürr Systems Ag | DESIGN AND METHOD FOR MONITORING A BURNER DEVICE |
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| CN104487153B (en) | 2017-02-22 |
| TWI601569B (en) | 2017-10-11 |
| JPWO2014034742A1 (en) | 2016-08-08 |
| JP6191832B2 (en) | 2017-09-06 |
| TW201420174A (en) | 2014-06-01 |
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