CN106808796A - Waste gas treatment equipment, waste gas processing method and drying system - Google Patents
Waste gas treatment equipment, waste gas processing method and drying system Download PDFInfo
- Publication number
- CN106808796A CN106808796A CN201710029190.3A CN201710029190A CN106808796A CN 106808796 A CN106808796 A CN 106808796A CN 201710029190 A CN201710029190 A CN 201710029190A CN 106808796 A CN106808796 A CN 106808796A
- Authority
- CN
- China
- Prior art keywords
- waste gas
- heat exchange
- air
- baking oven
- exchange side
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
Abstract
The invention discloses a kind of waste gas treatment equipment, waste gas processing method and drying system, the waste gas treatment equipment includes waste gas recovery processing unit and fresh air heating unit；Waste gas recovery processing unit includes first heat exchanger and catalytic reactor, and first heat exchanger is provided with the first heat exchange side and the second heat exchange side of mutual heat exchange；Fresh air heating unit includes that fresh air enters passage and second heat exchanger, and second heat exchanger is provided with the 3rd heat exchange side and the 4th heat exchange side of mutual heat exchange；The air inlet of the first heat exchange side is used to be connected with the air outlet of baking oven, the air outlet of the first heat exchange side is connected with the air inlet of catalytic reactor, the air outlet of catalytic reactor is connected with the air inlet of the second heat exchange side, the air inlet of the 4th heat exchange side enters channel connection with fresh air, and the air outlet of the 4th heat exchange side is used to be connected with the air inlet of baking oven.The present invention can fully reclaim the waste gas residual heat of baking oven discharge, it is ensured that the organic pollution in waste gas is effectively addressed, it may also be used for heating fresh air.
Description
Technical field
The present invention relates to printing equipment technical field, more particularly, to a kind of waste gas treatment equipment, waste gas processing method and
Drying system.
Background technology
Drying is the operation conventional together in printing process, for the ink on printed matter or coating to be dried.Existing print
Brush industry mainly realizes the drying to printed matter or coating by the hot blast of electrical heating, coal/thermo oil boiler or heat pump generation, generally
There is problems with：
1. the system dried using electrical heating and kerosene boiler, the waste gas produced after drying is directly discharged to air
In, substantial amounts of waste heat and organic substance are contained in waste gas, it is directly discharged to cause the waste of heat in air and cause environment
Pollution and destruction；
2. the system dried using heat pump air flow dryer, can typically carry out recuperation of heat to the waste heat in waste gas, then
It is discharged into air, but does not solve pollution problem of the organic substance in waste gas to environment；
3. the heat pump drying system of type is partially improved, organic solvent recycling is carried out in the exhaust gas centralized that will be produced after drying
Discharge the exhaust to again afterwards in air, the recycling and processing device is generally reclaimed using physics method to organic solvent, waste gas
In organic substance treatment not thoroughly, be discharged into environment and remain to cause certain pollution.
The content of the invention
Based on this, the invention reside in the defect for overcoming prior art, there is provided a kind of waste gas treatment equipment, waste gas processing method
And drying system, its waste gas residual heat that can fully reclaim baking oven discharge, it is ensured that the organic pollution in waste gas is effectively located
Reason, while can also be used to heat fresh air, so as to reach effect of energy-saving and emission-reduction.
Its technical scheme is as follows：
A kind of waste gas treatment equipment, including：Waste gas recovery processing unit, fresh air heating unit and air exhaust passage；It is described
Waste gas recovery processing unit includes first heat exchanger and catalytic reactor, and the first heat exchanger is provided with mutual heat exchange
First heat exchange side and the second heat exchange side；The fresh air heating unit includes that fresh air enters passage and second heat exchanger, described the
Two heat exchangers are provided with the 3rd heat exchange side and the 4th heat exchange side of mutual heat exchange；
It is described first heat exchange side air inlet be used for connect with the air outlet of baking oven, it is described first heat exchange side air outlet and
The air inlet connection of the catalytic reactor, the air outlet of the catalytic reactor connects with the air inlet of the described second heat exchange side
Logical, the air outlet of the second heat exchange side is connected via the described 3rd heat exchange side with the air exhaust passage, the 4th heat exchange side
Air inlet and the fresh air enter channel connection, the air outlet of the 4th heat exchange side is used to be connected with the air inlet of baking oven.
Wherein in one embodiment, the waste gas recovery processing unit also includes the first electric heater, and described first changes
Hot side is connected via first electric heater with the catalytic reactor.
Wherein in one embodiment, the fresh air heating unit also include hybrid channel, the hybrid channel be provided with
The fresh air air inlet of the air outlet connection of the 4th heat exchange side and the waste gas air inlet connected for the air outlet with baking oven, dry
Case is connected with the described first heat exchange side and the hybrid channel simultaneously, and the air outlet of the hybrid channel is used for the air intake with baking oven
Mouth connection.
Wherein in one embodiment, the fresh air heating unit also includes the second electric heater, the hybrid channel warp
By being connected with baking oven after second electric heater.
Wherein in one embodiment, the fresh air heating unit also includes blower fan, and the blower fan is used for will be by described
The mixed gas delivery of the second electric heater is to baking oven.
Wherein in one embodiment, the fresh air heating unit also includes the air outlet for detecting the hybrid channel
Locate the temperature detector of gas temperature.
Wherein in one embodiment, the air inlet of the first heat exchange side is provided with flow control valve.
The technical program additionally provides a kind of drying system, including baking oven, return air channel, air-supply passage and described useless
Gas disposal equipment, the air outlet of the baking oven is connected via the return air channel with the waste gas treatment equipment, at the waste gas
The air outlet of reason equipment is connected via the air-supply passage with the air inlet of the baking oven.
The technical program additionally provides a kind of waste gas processing method, comprises the following steps：
First heat exchanger is heated to the waste gas discharged from baking oven；
Waste gas after heated is into carrying out catalytic reaction in catalytic reactor；
The high-temperature gas that catalytic reaction is produced is into being used to heat waste gas in first heat exchanger；
To enter back into be used in second heat exchanger by the high-temperature gas after first heat exchanger heat exchange and heat fresh air；
Fresh air after being heated through second heat exchanger enters baking oven.
Wherein in one embodiment, step is also included after the step of second heat exchanger heats fresh air：
The exhaust gas section of baking oven discharge branches to and converges to form mixed gas with the fresh air after being heated through second heat exchanger,
Mixed gas integrally enter baking oven.
The advantage or principle to preceding solution are illustrated below：
Waste gas treatment equipment of the present invention, waste gas processing method and drying system, it from baking oven by will discharge
Waste gas is introduced in first heat exchanger, and first heat exchanger can be heated to waste gas, so as to ensure to enter catalytic reactor
Interior waste gas reach catalytic reaction required for temperature, and then ensure catalytic reaction fully carry out.Waste gas passes through chemical treatment side
After method (catalytic reaction), organic substance therein can be catalytically decomposed into carbon dioxide and water, and discharge substantial amounts of heat, be obtained
To high-temperature gas.A heat part for high-temperature gas now is the waste gas residual heat from baking oven, and another part is catalytic reaction
Heat, the heat is re-booted to and is used to heat the waste gas discharged from baking oven in first heat exchanger, realizes the one of heat
Secondary recovery；Flowed to again in second heat exchanger by the high-temperature gas of first heat exchanger heat exchange afterwards and be used to heat fresh air,
The secondary recovery of heat is realized, is finally discharged into air again with the gas after secondary recovery by once reclaiming, now discharged
Gas be mainly carbon dioxide, do not pollute the environment.In summary, the present invention substantially effectively make use of baking oven to discharge waste gas
Waste heat, by the waste heat be used to catalytic reaction, reduce thermal loss；Also come further with the heat of catalytic reaction simultaneously
Improve the EGT for entering catalytic reaction, it is ensured that reaction is fully carried out completely so that the organic substance in waste gas can be filled
Decompose；Finally, waste heat is carried out secondary recovery by the present invention, not only to catalytic reaction, is also heated to fresh air so that heat
Effectively recovery is measured, the utilization rate of heat is improve, while also having reached effect of energy-conservation.
The exhaust gas treatment unit is additionally provided with the first electric heater, and foregoing first heat exchanger is used to carry out one to waste gas
Secondary heating, described the first electric heater is then used to carry out reheating to waste gas, so that it is guaranteed that into catalytic reactor
Waste gas can reach catalytic reaction required for temperature, be conducive to accelerate catalytic reaction speed, improve catalytic reaction efficiency.
The present invention design in, from baking oven waste gas out into waste gas treatment equipment after shunted, a part through first
It is used to be catalytically decomposed after heat exchanger, another part enters in fresh air heating unit for mixing with fresh air so that exhaust gas section
Into catalytic reactor, effectively control enters the concentration of organic substance in catalytic reactor, prevents waste gas from fully entering catalysis anti-
The situation for causing waste gas fully to decompose in device is answered, so as to cause the organic substance not being decomposed to be discharged into air
Pollution environment.Therefore, the present invention may insure to be obtained fully into the waste gas in catalytic reactor by way of waste gas is shunted
Decompose, while another part waste gas mixes the effect that also can reach heating fresh air with fresh air, so as to heat energy be made full use of.With it is new
The waste gas of wind mixing also will be decomposed thoroughly by after repeatedly circulation, therefore the present invention is conducive to focusing on for waste gas, and
The speed of catalytic reaction can be ensured.
The air inlet of first heat exchanger of the present invention is provided with flow control valve, and flow control valve is used to adjust entrance
The exhausted air quantity of waste gas recovery processing unit, so that effectively control enters the concentration of organic substance in catalytic reactor, it is ensured that organic
Pollutant is thoroughly decomposed.
Before fresh air heating unit of the present invention also includes that the second electric heater, the second electric heater are used to entering baking oven
Mixed gas carry out reheating (foregoing second heat exchanger is once heated to fresh air), it is ensured that mixed gas are being entered
Enter to reach before baking oven the target temperature of baking needed.
The fresh air heating unit also includes temperature detector, temperature detector be used to detect mixed gas temperature whether
Reach baking needed target temperature, if not up to, the electric heating tube opened in it carries out reheating to mixed gas, when plus
The temperature of hot gas reaches the target temperature of baking needed, then the high-temperature gas after heating is transported into baking oven is dried.When
When the temperature for detecting mixed gas has reached drying target temperature, then electric heating tube can be opened, directly will be through once
In the mixed gas delivery of heating to baking oven, so as to reach effect of Energy Saving Control.
Brief description of the drawings
Fig. 1 is the structural representation of the drying system described in the embodiment of the present invention.
Description of reference numerals：
100th, baking oven, 200, return air channel, 300, air-supply passage, 400, waste gas treatment equipment, 411, first heat exchanger,
412nd, the first electric heater, 413, catalytic reactor, 414, flow control valve, 421, fresh air enter passage, the 422, second heat is handed over
Parallel operation, 423, hybrid channel, the 424, second electric heater, 425, blower fan, 430, air exhaust passage.
Specific embodiment
To make the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing and specific embodiment party
Formula, is described in further detail to the present invention.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, protection scope of the present invention is not limited.
It should be noted that when an element is known as " connection " another element, it can be communicates directly to separately
One element can also be that another element is communicated in by element placed in the middle.Additionally, unless otherwise indicated, otherwise saying
The description such as term " first " and " second " in bright book is used only for distinguishing each component, element, step in specification etc., and
It is not intended to represent each component, the logical relation between element, step or ordinal relation etc..
As shown in figure 1, drying system of the present invention include baking oven 100, return air channel 200, air-supply passage 300 and
Waste gas treatment equipment 400, the air outlet of the baking oven 100 connects via the return air channel 200 with the waste gas treatment equipment 400
Logical, the air outlet of the waste gas treatment equipment 400 is connected via the air-supply passage 300 with the air inlet of the baking oven 100.
Wherein, the waste gas treatment equipment 400 includes：Waste gas recovery processing unit, fresh air heating unit and air draft are led to
Road 430 other exhaust equipments such as (can) built-in exhaust blowers.The waste gas recovery processing unit includes first heat exchanger 411 and urges
Change reactor 413, the first heat exchanger 411 is provided with the first heat exchange side and the second heat exchange side of mutual heat exchange.It is described new
Wind heating unit enters passage 421 (can built-in air inlet fan etc. blast apparatus) and second heat exchanger 422 including fresh air, and described the
Two heat exchangers 422 are provided with the 3rd heat exchange side and the 4th heat exchange side of mutual heat exchange.The air inlet of the first heat exchange side is used
Connected in the air outlet with return air channel 200, it is described first heat exchange side air outlet and the catalytic reactor 413 air inlet
Connection, the air outlet of the catalytic reactor 413 connect with the air inlet of the described second heat exchange side, and described second side that exchanges heat goes out
Air port connects via the described 3rd heat exchange side with the air exhaust passage 430, the air inlet and the fresh air of the 4th heat exchange side
Connected into passage 421, the air outlet of the 4th heat exchange side is used to be connected with the air inlet of air-supply passage 300.
The operation principle to above-mentioned technical proposal is illustrated below：Waste gas after by will be dried through baking oven 100 is introduced
To first heat exchanger 411 (the first heat exchange side), first heat exchanger 411 can be heated to waste gas, so as to ensure to enter
Waste gas in catalytic reactor 413 reach catalytic reaction required for temperature, and then ensure catalytic reaction fully carry out.Waste gas is passed through
After crossing catalytic reaction, organic substance therein can be catalytically decomposed into carbon dioxide and water, and discharge substantial amounts of heat, be obtained
High-temperature gas.A heat part for high-temperature gas now is the waste gas residual heat from baking oven 100, and another part is catalytic reaction
Heat, the heat is re-booted to and is used to carry out the waste gas discharged from baking oven 100 in first heat exchanger 411 (the second heat exchange side)
Heating, realizes the once recovery of heat；The second heat is flowed to again by the high-temperature gas of the heat exchange of first heat exchanger 411 afterwards to hand over
It is used to heat the fresh air of the 4th heat exchange side in parallel operation 422 (the 3rd heat exchange side), the secondary recovery of heat is realized, by once reclaiming
Finally it is discharged into air by air exhaust passage 430 again with the gas after secondary recovery, the gas for now discharging predominantly dioxy
Change carbon, do not pollute the environment.In summary, the present invention substantially effectively make use of baking oven 100 to discharge the waste heat of waste gas, and this is remaining
Heat is used to catalytic reaction, reduces thermal loss；Also improved further with the heat of catalytic reaction simultaneously into catalysis
The EGT of reaction, it is ensured that reaction is fully carried out completely so that the organic substance in waste gas can be adequately broken；Most
Afterwards, waste heat is carried out secondary recovery by the present invention, not only to catalytic reaction, is also heated to fresh air so that heat is obtained effectively
Reclaim, the utilization rate of heat is improve, while also having reached effect of energy-conservation.
It is worth noting that, the gas in the present invention into baking oven 100 is mainly fresh air, fresh air can ensure in baking oven 100
Atmosphere is dried.In some conventional arts, will be delivered in baking oven 100 through the reacted high-temperature gas of catalytic reactor 413 is used for
Drying, includes vapor (produced after catalytic reaction) in high-temperature gas now, will cause humidity in baking oven 100, unfavorable
In drying printed matter.
Furthermore, it is necessary to explanation, of the invention also to save described return air channel 200 and air-supply passage 300 so that useless
Gas disposal equipment 400 is directly connected with the air inlet and air outlet of baking oven 100.Herein, when being described as " with return air channel
200 air outlet connection " or " from return air channel 200 " can also be expressed as " air outlet with baking oven 100 is connected " or " from
Discharged in baking oven 100 "；Also can be respectively when " air inlet with air-supply passage 300 is connected " or " entering air-supply passage 300 " is described as
It is expressed as " air inlet with baking oven 100 is connected " or " entering baking oven 100 ".
In the present embodiment, the waste gas recovery processing unit also includes the first electric heater 412, first heat exchange
First heat exchange side of device 411 connects via first electric heater 412 with the catalytic reactor 413.The first foregoing heat
Exchanger 411 is used to once heat waste gas, and first electric heater 412 is then used to carry out reheating to waste gas,
So that it is guaranteed that the temperature required for reaching catalytic reaction into the waste gas in catalytic reactor 413, is conducive to accelerating catalytic reaction
Speed, improve catalytic reaction efficiency.Preferably, the present invention can according to actual needs in the air-out of first heat exchanger 411
Temperature detector (may be set to the first temperature detector, accompanying drawing is not shown) is installed at mouthful, is used to detect and is entered catalytic reactor
Whether the EGT before 413 reaches target temperature value, when target temperature value is reached, then need not start the first electric heater
Electric heating tube in 412, when target temperature value is not reaching to, then can start the electric heating tube in the first electric heater 412, by
This realizes the Energy Saving Control of system.
Fresh air heating unit of the present invention also includes hybrid channel 423, and the hybrid channel 423 is provided with and described second
Fresh air air inlet and connected for the air outlet with return air channel 200 that 4th heat exchange side air-out mouthful of heat exchanger 422 is connected
Waste gas air inlet.Now, return air channel 200 is connected with the first heat exchanger 411 and the hybrid channel 423 simultaneously.
The air outlet of the hybrid channel 423 is then used to be connected with the air inlet of air-supply passage 300.It follows that from baking oven 100 out
Waste gas by return air channel 200 into being shunted after waste gas treatment equipment 400, be partly into first heat exchanger 411
Catalytic decomposition is inside eventually used for, another part enters in fresh air heating unit for mixing with fresh air so that exhaust gas section enters
Catalytic reactor 413, effectively control enter the concentration of organic substance in catalytic reactor 413, prevent waste gas from fully entering catalysis
Waste gas is caused fully to decompose in reactor 413, so as to cause the organic substance not being decomposed to be discharged into air
Pollution environment.Therefore, the present invention may insure to be filled into the waste gas in catalytic reactor 413 by way of waste gas is shunted
Decompose, while another part waste gas mixes the effect that also can reach heating fresh air with fresh air, so as to heat energy be made full use of.With
The waste gas of fresh air mixing also will be decomposed thoroughly by after repeatedly circulation, therefore the present invention is conducive to focusing on for waste gas,
And the speed of catalytic reaction can be ensured.
In the present embodiment, (such as the first heat exchange side between the first heat exchanger 411 and the return air channel 200
Air inlet) flow control valve 414 is additionally provided with, flow control valve 414 is used to adjust the waste gas into waste gas recovery processing unit
Amount, so that effectively control enters the concentration of organic substance in catalytic reactor 413, it is ensured that organic pollution is thoroughly decomposed.
The fresh air heating unit also includes the second electric heater 424, and the hybrid channel 423 adds via the described second electricity
Connected with air-supply passage 300 after hot device 424.Second electric heater 424 is used to carry out two to entering the mixed gas before baking oven 100
Secondary heating (second heat exchanger 422 is once heated to fresh air), it is ensured that mixed gas can reach before baking oven 100 is entered
The target temperature of baking needed.
Further, the fresh air heating unit also (may be set to second temperature detector, accompanying drawing including temperature detector
It is not shown), temperature detector is located at the temperature added at the survey air outlet of hybrid channel 423, the temperature for being used to detect mixed gas
It is no to reach baking needed target temperature, if not up to, the electric heating tube opened in the second electric heater 424 enters to mixed gas
Row reheating, when the temperature of mixed gas reaches the target temperature of baking needed, then by blower fan 425 by the High Temperature Gas after heating
Body is transported to baking oven 100 and is dried.When the temperature for detecting mixed gas has reached drying target temperature, then may be used
The electric heating tube in the second electric heater 424 is opened, directly the mixed gas delivery through once heating extremely is dried by blower fan 425
In case 100, so as to reach effect of Energy Saving Control.
In the present embodiment, it is the baking oven 100, first electric heater 412, described present invention additionally comprises controller
First temperature detector, second electric heater 424, the second temperature detector and described blower fan 425 etc. are and institute
Controller electric connection is stated, the electric connection can be wired connection or wireless connection.Controller can be according to the first temperature detection
The temperature signal that device sends is realized the automatic opening of the first electric heater 412 and is closed, and is sent out according to second temperature detector
The temperature signal for sending realize the second electric heater 424 automatic opening with close and blower fan 425 open and close.Pass through
Controller can realize automatically controlling for whole system so that system intelligent.
Present invention also offers a kind of waste gas processing method, comprise the following steps：
Step one, is added via return air channel 200 from the waste gas of the discharge of baking oven 100 into first heat exchanger 411 is interior
Heat；
Step 2, it is heated after waste gas into carrying out catalytic reaction in catalytic reactor 413；
Step 3, the high-temperature gas that catalytic reaction is produced is used to heat waste gas into first heat exchanger 411 is interior；
Step 4, enters back into second heat exchanger 422 by the high-temperature gas after the heat exchange of first heat exchanger 411 and uses
To heat fresh air, afterwards via being expelled in air after air exhaust passage 430；
Step 5, the fresh air heated through second heat exchanger 422 enters baking oven 100 via air-supply passage 300.
In the present embodiment, step is also included between step one and step 2：By after the heating of first heat exchanger 411
Waste gas heated into the first electric heater 412.
In the present embodiment, step is also included after step 4：The exhaust gas section of the discharge of baking oven 100 branch to through the
Fresh air after two heat exchangers 422 are heated is mixed to form mixed gas, and mixed gas enter via air-supply passage 300 dry again afterwards
Case 100, the exhaust gas section of the now discharge of baking oven 100 enters in the first heat exchange side, partly for mixing with the fresh air after heating.
In the present embodiment, baking oven 100 discharge exhaust gas section branch to through second heat exchanger 422 heat after
The step of fresh air is mixed to form mixing and via air-supply passage 300 enter baking oven 100 the step of between also include step：Temperature is examined
Whether the temperature for surveying device (second temperature detector) detection mixed gas reaches baking needed target temperature value, when not up to drying
During required target temperature value, then open the second electric heater 424 and be used to heat mixed gas, when the temperature of mixed gas reaches baking
Required target temperature is done, then the high-temperature gas after heating is transported to baking oven 100 by blower fan 425 and dried.
Waste gas processing method of the present invention is identical with the principle of waste gas treatment equipment 400, the technique effect for being reached
It is identical, do not repeat to repeat herein.It should be noted that the citing of above-mentioned waste gas processing method of the invention is only used for illustrating this
Technical scheme, can not turn into the limitation of the technical program.The present invention is not limited the sequencing of above-mentioned steps, this area skill
Art personnel can according to actual needs set corresponding priority execution sequence.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.
Claims (10)
1. a kind of waste gas treatment equipment, it is characterised in that logical including waste gas recovery processing unit, fresh air heating unit and air draft
Road；The waste gas recovery processing unit includes first heat exchanger and catalytic reactor, and the first heat exchanger is provided with mutually
First heat exchange side of heat exchange and the second heat exchange side；The fresh air heating unit includes that fresh air enters passage and the second heat exchange
Device, the second heat exchanger is provided with the 3rd heat exchange side and the 4th heat exchange side of mutual heat exchange；
It is described first heat exchange side air inlet be used for connect with the air outlet of baking oven, it is described first exchange heat side air outlet with it is described
The air inlet connection of catalytic reactor, the air outlet of the catalytic reactor is connected with the air inlet of the described second heat exchange side, institute
The air outlet for stating the second heat exchange side is connected via the described 3rd heat exchange side with the air exhaust passage, the air intake of the 4th heat exchange side
Mouth enters channel connection with the fresh air, and the air outlet of the 4th heat exchange side is used to be connected with the air inlet of baking oven.
2. waste gas treatment equipment according to claim 1, it is characterised in that the waste gas recovery processing unit also includes the
One electric heater, the first heat exchange side connects via first electric heater with the catalytic reactor.
3. waste gas treatment equipment according to claim 1, it is characterised in that the fresh air heating unit also includes that mixing is logical
Road, the hybrid channel is provided with the fresh air air inlet that connects of air outlet of the described 4th heat exchange side and for the air-out with baking oven
The waste gas air inlet of mouth connection, baking oven is connected with the described first heat exchange side and the hybrid channel simultaneously, the hybrid channel
Air outlet is used to be connected with the air inlet of baking oven.
4. waste gas treatment equipment according to claim 3, it is characterised in that the fresh air heating unit also includes the second electricity
Heater, the hybrid channel with baking oven after second electric heater via connecting.
5. waste gas treatment equipment according to claim 4, it is characterised in that the fresh air heating unit also includes blower fan,
The blower fan is used for by the mixed gas delivery of second electric heater to baking oven.
6. waste gas treatment equipment according to claim 4, it is characterised in that the fresh air heating unit is also included for examining
Survey the temperature detector of gas temperature at the air outlet of the hybrid channel.
7. waste gas treatment equipment according to any one of claim 1 to 6, it is characterised in that the first heat exchange side
Air inlet is provided with flow control valve.
8. a kind of drying system, it is characterised in that including baking oven, return air channel, air-supply passage and as in claim 1 to 7
Waste gas treatment equipment described in any one, the air outlet of the baking oven connects via the return air channel with the waste gas treatment equipment
Logical, the air outlet of the waste gas treatment equipment is connected via the air-supply passage with the air inlet of the baking oven.
9. a kind of waste gas processing method, it is characterised in that comprise the following steps：
First heat exchanger is heated to the waste gas discharged from baking oven；
Waste gas after heated is into carrying out catalytic reaction in catalytic reactor；
The high-temperature gas that catalytic reaction is produced is into being used to heat waste gas in first heat exchanger；
To enter back into be used in second heat exchanger by the high-temperature gas after first heat exchanger heat exchange and heat fresh air；
Fresh air after being heated through second heat exchanger enters baking oven.
10. waste gas processing method according to claim 9, it is characterised in that heat the step of fresh air in second heat exchanger
Also include step after rapid：
The exhaust gas section of baking oven discharge branches to and converges to form mixed gas with the fresh air after being heated through second heat exchanger, mixes
Gas integrally enters baking oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029190.3A CN106808796B (en) | 2017-01-16 | 2017-01-16 | Waste gas treatment equipment, waste gas processing method and drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029190.3A CN106808796B (en) | 2017-01-16 | 2017-01-16 | Waste gas treatment equipment, waste gas processing method and drying system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106808796A true CN106808796A (en) | 2017-06-09 |
| CN106808796B CN106808796B (en) | 2019-02-26 |
Family
ID=59110886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710029190.3A Active CN106808796B (en) | 2017-01-16 | 2017-01-16 | Waste gas treatment equipment, waste gas processing method and drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106808796B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435760A (en) * | 2018-04-26 | 2018-08-24 | 江苏瑞德斯环保科技有限公司 | A kind of integral type waste paint slag abatement system |
| CN109532223A (en) * | 2018-12-24 | 2019-03-29 | 中山松德印刷机械有限公司 | A kind of energy-saving and emission-reduction drying system |
| CN109605934A (en) * | 2018-12-29 | 2019-04-12 | 重庆富美包装印务有限公司 | Printing machine waste heat recovery of circulatory system |
| CN109774303A (en) * | 2019-01-23 | 2019-05-21 | 陕西北人印刷机械有限责任公司 | A kind of mixed bellows and its control method |
| CN110171187A (en) * | 2019-06-22 | 2019-08-27 | 黎庆德 | A kind of plastic-film printer |
| CN110455065A (en) * | 2018-05-07 | 2019-11-15 | 广东环葆嘉节能科技有限公司 | Circulating air drying system |
| CN110978359A (en) * | 2019-12-27 | 2020-04-10 | 河北宏福塑料制品有限公司 | Disposable glove waste heat recycling device |
| CN113758226A (en) * | 2021-09-13 | 2021-12-07 | 南昌航空大学 | Dryer tail gas waste heat recovery device, dryer and waste heat recovery method |
| CN114264166A (en) * | 2020-12-29 | 2022-04-01 | 无锡朗秀科技有限公司 | Heat exchanger of oven |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003120925A (en) * | 2001-10-05 | 2003-04-23 | Nippon Steel Corp | Exhaust gas processor of waste disposal furnace |
| CN1546211A (en) * | 2003-12-05 | 2004-11-17 | 杭州天人环保设备有限公司 | Drying room exhaust gas purification and energy recovery system and apparatus |
| CN101162123A (en) * | 2007-07-27 | 2008-04-16 | 杭州泰欣实业有限公司 | Color-coating waste gas heat recovery method |
| CN102163643A (en) * | 2010-10-09 | 2011-08-24 | 浙江哈氟龙新能源有限公司 | Waste gas treatment thermal cycle drying system |
| CN102829617A (en) * | 2012-09-20 | 2012-12-19 | 张家港市苏承环保设备有限公司 | Waste gas heat energy environmental-friendly comprehensive utilization device |
| CN205007848U (en) * | 2015-09-16 | 2016-02-03 | 广东芬尼克兹节能设备有限公司 | Efficient organic waste gas processing system |
| CN106247786A (en) * | 2016-09-27 | 2016-12-21 | 广东芬尼克兹环保设备有限公司 | Drying system |
-
2017
- 2017-01-16 CN CN201710029190.3A patent/CN106808796B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003120925A (en) * | 2001-10-05 | 2003-04-23 | Nippon Steel Corp | Exhaust gas processor of waste disposal furnace |
| CN1546211A (en) * | 2003-12-05 | 2004-11-17 | 杭州天人环保设备有限公司 | Drying room exhaust gas purification and energy recovery system and apparatus |
| CN101162123A (en) * | 2007-07-27 | 2008-04-16 | 杭州泰欣实业有限公司 | Color-coating waste gas heat recovery method |
| CN102163643A (en) * | 2010-10-09 | 2011-08-24 | 浙江哈氟龙新能源有限公司 | Waste gas treatment thermal cycle drying system |
| CN102829617A (en) * | 2012-09-20 | 2012-12-19 | 张家港市苏承环保设备有限公司 | Waste gas heat energy environmental-friendly comprehensive utilization device |
| CN205007848U (en) * | 2015-09-16 | 2016-02-03 | 广东芬尼克兹节能设备有限公司 | Efficient organic waste gas processing system |
| CN106247786A (en) * | 2016-09-27 | 2016-12-21 | 广东芬尼克兹环保设备有限公司 | Drying system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435760A (en) * | 2018-04-26 | 2018-08-24 | 江苏瑞德斯环保科技有限公司 | A kind of integral type waste paint slag abatement system |
| CN110455065A (en) * | 2018-05-07 | 2019-11-15 | 广东环葆嘉节能科技有限公司 | Circulating air drying system |
| CN109532223A (en) * | 2018-12-24 | 2019-03-29 | 中山松德印刷机械有限公司 | A kind of energy-saving and emission-reduction drying system |
| CN109605934A (en) * | 2018-12-29 | 2019-04-12 | 重庆富美包装印务有限公司 | Printing machine waste heat recovery of circulatory system |
| CN109774303A (en) * | 2019-01-23 | 2019-05-21 | 陕西北人印刷机械有限责任公司 | A kind of mixed bellows and its control method |
| CN110171187A (en) * | 2019-06-22 | 2019-08-27 | 黎庆德 | A kind of plastic-film printer |
| CN110978359A (en) * | 2019-12-27 | 2020-04-10 | 河北宏福塑料制品有限公司 | Disposable glove waste heat recycling device |
| CN114264166A (en) * | 2020-12-29 | 2022-04-01 | 无锡朗秀科技有限公司 | Heat exchanger of oven |
| CN114264166B (en) * | 2020-12-29 | 2024-01-02 | 无锡朗秀科技有限公司 | Oven heat exchanger |
| CN113758226A (en) * | 2021-09-13 | 2021-12-07 | 南昌航空大学 | Dryer tail gas waste heat recovery device, dryer and waste heat recovery method |
| CN113758226B (en) * | 2021-09-13 | 2022-09-27 | 南昌航空大学 | Dryer tail gas waste heat recovery device, dryer and waste heat recovery method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106808796B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106808796B (en) | Waste gas treatment equipment, waste gas processing method and drying system | |
| CN102219346B (en) | System for drying and treating sludge by utilizing afterheat to generate high-temperature circulating air | |
| CN102268796B (en) | Waste gas treating and waste heat recycling device and method | |
| CN107931297A (en) | A kind of VOCs processing equipments for printing machine | |
| CN105651069A (en) | Energy-saving environment-friendly efficient drying system | |
| CN203999502U (en) | A kind of organic solid castoff mummification charing integrated system | |
| CN108613504A (en) | Workpiece degreasing unit | |
| CN210362971U (en) | System for drying printed matter and concentrating tail gas | |
| CN106352689A (en) | Hot air drying equipment | |
| CN108844085A (en) | A kind of multi-stage heat exchanger point builds formula catalytic oxidation system and its processing method | |
| CN108006655A (en) | A kind of hot air circulation garbage dewatering device | |
| KR101716659B1 (en) | Device for drying organic waste | |
| CN103693837A (en) | Sludge dryer | |
| CN208920091U (en) | A kind of slush moulding exhaust gas heat recovery apparatus | |
| CN105864803A (en) | Direct combustion type waste gas treatment and heat energy utilization system and utilization method | |
| CN104006672B (en) | Steel-smelting electric furnace smoke evacuation dust collection method | |
| JPS55105535A (en) | Tenter oven | |
| CN202109741U (en) | Sludge baking and treatment system utilizing waste heat to generate high-temperature circulation air | |
| CN207449386U (en) | A kind of efficient recuperation of heat dryer | |
| CN111116006B (en) | Circulating regenerative sludge treatment system and method | |
| CN209005551U (en) | A kind of explosion-proof catalytic oxidizing equipment | |
| CN208019112U (en) | VOCs processing equipments suitable for printing machine | |
| CN105582785B (en) | The purification of active carbon by chemical method production tail gas and recovery system | |
| CN207805904U (en) | VOCs processing units suitable for accurate coating apparatus | |
| CN207793152U (en) | A kind of coke dry quenching furnace flue gas desulphurization unit |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 511470, No. 3, Tianyuan Road, Dagang Town, Guangzhou, Guangdong, Nansha District Applicant after: Guangdong Environmental Protection Technology Co. Ltd. hereby Cervantes Address before: 511470 Tianyuan Road, Dagang Town, Nansha District, Guangzhou, Guangdong Province, No. 3 (2 self compiled) Applicant before: Guangdong environmental protection equipment Co. Ltd. hereby Cervantes |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |