CN110154521A - A kind of system dried printed matter and tail gas is concentrated - Google Patents
A kind of system dried printed matter and tail gas is concentrated Download PDFInfo
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- CN110154521A CN110154521A CN201910456464.6A CN201910456464A CN110154521A CN 110154521 A CN110154521 A CN 110154521A CN 201910456464 A CN201910456464 A CN 201910456464A CN 110154521 A CN110154521 A CN 110154521A
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- air circulation
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- heated air
- circulation device
- baking oven
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- 239000007789 gas Substances 0.000 claims abstract description 181
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000002912 waste gas Substances 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000011897 real-time detection Methods 0.000 claims abstract description 5
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 238000004880 explosion Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000007639 printing Methods 0.000 description 15
- 239000002737 fuel gas Substances 0.000 description 5
- 238000007602 hot air drying Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
- B01F23/191—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means characterised by the construction of the controlling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
- B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/2132—Concentration, pH, pOH, p(ION) or oxygen-demand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
- B01F35/834—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices the flow of substances to be mixed circulating in a closed circuit, e.g. from a container through valve, driving means, metering means or dispensing means, e.g. 3-way valve, and back to the container
-
- 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
- B41F23/0403—Drying webs
- B41F23/0423—Drying webs by convection
- B41F23/0426—Drying webs by convection using heated air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Drying Of Solid Materials (AREA)
Abstract
This application discloses a kind of systems dried printed matter and tail gas is concentrated, including multiple heated air circulation devices, detection module, waste gas recovery mechanism and PLC；The heated air circulation device is for drying printed matter and the tail gas generated when drying being concentrated；Detection module, the concentration for organic combustible gas in negative pressure in real-time detection baking oven and heated air circulation device；Waste gas recovery mechanism is used to recycle the exhaust gas of multiple heated air circulation devices；PLC is used for the organic combustible gas concentration in the concentration control heated air circulation device according to organic combustible gas in negative pressure in baking oven and baking oven within a preset range.The application controls whole system fully automatic operation by PLC, it is labor-saving while to control precision higher, the operating status of system is visualized by man-machine interface, organic combustible gas is concentrated, externally discharge is reduced, the processing cost of externally discharge exhaust gas is saved, controls waste gas circulation flowing in heated air circulation device, reduce fresh air to enter, reduces the energy consumption of heating fresh air.
Description
Technical field
The present invention relates to printing technology more particularly to a kind of drying printed matter and the systems that tail gas is concentrated.
Background technique
VOCs is the volatile organic compound that a kind of boiling point is lower than 250 DEG C, is had very to human health and ecological environment
Big harmfulness.This kind of organic exhaust gas is effectively treated, is not only avoided that environmental pollution, reduces the operating cost of enterprise, has
Higher social benefit and economic benefit.
Exhaust gas largely containing VOCS can be also given off in printing industry, especially during colored printing, due to will be into
Row chromatography need to carry out rapid draing after printing a kind of color, so as to a kind of color under printing.In existing printing machine,
Surrounding air is usually directly extracted, printing machine drying box is entered after being heated, is then discharged.In recent years coming of new,
The printing machine of installation has part to carry out simple internal circulation, has carried out part reuse to heat, but since air quantity is larger, make
It is huge at energy consumption when heating, and air quantity is larger, and processing equipment used in progress vent gas treatment is larger, operating cost
It is higher.Meanwhile inevitable that partial solvent is evaporated by operating space in printing process.
Existing China Patent Publication No. is " a kind of for printing and being coated with the collection system of exhaust gas " of CN109045852A,
It includes sequentially connected fresh air air inlet system, hot air drying system, printing machine and exhaust treatment system, and passes through heat reuse
System connects the exhaust treatment system and the hot air drying system；Described in the fresh air warp sucked from the fresh air air inlet system
Hot air drying system enters printing machine and take the exhaust gas in printing machine to the exhaust treatment system out of, through the vent gas treatment
The high-temp waste gas of system processing exchanges heat through the heat reclaiming system, the gas discharge after heat exchange, heat reuse system
The heat of absorption is back to the hot air drying system by system.This system is unable to Automatic Control exhaust emissions, and it is even more impossible to dense
Contracting exhaust gas, when handling exhaust gas because exhaust gas concentration is lower, handled by combustion system it is insufficient, in addition, drying printed matter effect
Rate is relatively low.
Summary of the invention
For the above-mentioned deficiency of the prior art, technical problem to be solved by the present invention lies in propose a kind of drying printing
Product and the system that tail gas is concentrated.
The technical solution used to solve the technical problems of the present invention is that a kind of drying printed matter and the system that tail gas is concentrated,
It is characterized in that, comprising:
Multiple heated air circulation devices, each heated air circulation device include the air intake blower fan being sequentially connected, baking oven and return
Wind blower；The baking oven enters baking oven for inhaling fresh air for toasting printed matter, the air intake blower fan, and the return air fan is used for
Inhale the exhaust gas containing organic combustible gas after toasting printed matter in baking oven；Each heated air circulation device further includes having air inlet wind
Door and return air damper；
Detection module, the concentration for organic combustible gas in negative pressure in real-time detection baking oven and heated air circulation device；
Waste gas recovery mechanism, for recycling the exhaust gas of multiple heated air circulation devices, the waste gas recovery mechanism is provided with more
A exhaust duct being connected respectively with multiple heated air circulation devices；
PLC, for the concentration control inlet air door and return air according to organic combustible gas in negative pressure in baking oven and baking oven
The aperture of air door makes the mixed gas of exhaust gas in heated air circulation device or exhaust gas and fresh air recycle stream in heated air circulation device
It is dynamic, make organic combustible gas concentration in heated air circulation device within a preset range.
Preferably, the PLC is according to organic combustible gas concentration control exhaust duct and heated air circulation device in baking oven
On-off.
Preferably, the PLC predetermined organic combustable gas concentration critical value, the organic combustible gas concentration critical value are small
Organic combustible gas concentration is reaching organic combustible gas concentration in organic combustible gas explosion ratio value, heated air circulation device
Before critical value, PLC, which controls the heated air circulation device, recycles the exhaust gas in heated air circulation device in heated air circulation device
Flowing.
Preferably, when the organic combustible gas concentration in heated air circulation device reaches organic combustible gas concentration critical value,
PLC control exhaust duct is connected to heated air circulation device, and then the exhaust gas in heated air circulation device is discharged to waste gas recovery mechanism
In.
Preferably, detection module includes detecting the B/P EGR Back Pressure Transducer EGR of negative pressure in baking oven and detecting organic combustible gas in baking oven
Concentration concentration sensor.
Preferably, the heated air circulation device further includes at least one first connecting tube, and first connecting tube is used for will
It is returned in baking oven from the exhaust gas being discharged in baking oven.
Preferably, first connecting tube is provided with bleeding point, and concentration sensor detects the exhaust gas of bleeding point sampling.
Preferably, the heated air circulation device further includes at least one second connecting tube, and the second connecting tube connection is dried
Case and return air fan, the return air fan draw the exhaust gas in baking oven by the second connecting tube and pass through the first connecting tube again for exhaust gas
It returns in baking oven.
Preferably, the heated air circulation device further includes the first heating wire for heating fresh air, first heating wire
Connecting place in the air intake blower fan and baking oven.
Preferably, the heated air circulation device further includes the second heating wire for heating hot wind, second heating wire
In first connecting tube.
The application controls whole system fully automatic operation by PLC, labor-saving while to control precision higher, passes through people
Machine interface visualizes the operating status of system, and organic combustible gas is concentrated, and reduction externally discharge saves and externally discharges exhaust gas
Processing cost controls waste gas circulation flowing in heated air circulation device, reduces fresh air and enters, reduces the energy consumption of heating fresh air.
Detailed description of the invention
Fig. 1 is the structural block diagram for the system dried printed matter in embodiment and tail gas is concentrated.
Fig. 2 is the structural schematic diagram of heated air circulation device in embodiment.
Fig. 3 is the structural schematic diagram at another visual angle of heated air circulation device in embodiment.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Fig. 1-Fig. 3 is please referred to, the present invention discloses a kind of system dried printed matter and tail gas is concentrated, including multiple hot winds follow
Loop device 100, detection module 200, waste gas recovery mechanism 400 and PLC300；The printed matter just printed by system drying,
When toasting printed matter, organic combustible gas can be generated；Fuel gas and the new wind mixing into 100 flood of heated air circulation device and
Become exhaust gas.
This system follows exhaust gas in hot wind in order to avoid the organic combustible gas generated in the roasting printing print of flood is polluted environment
It circulates in loop device 100 organic combustible gas is concentrated, specifically, by persistently mixing newly generated combustable organic gas
Body when organic combustible gas reaches preset concentration in exhaust gas, then exhaust gas is discharged in waste gas recovery mechanism 400；By concentration
Organic combustible gas concentration is more much higher than the organic combustible gas concentration without concentration, and being just more convenient processing in this way has
Machine fuel gas, specifically direct burning organic combustible gas, the combustable organic gas of the organic combustible gas of high concentration than low concentration
Volumetric combustion more sufficiently, therefore, this system then is focused on organic combustible gas by concentration organic combustible gas, can
Pollution when greatly reducing baking printed matter to environment is VOCs in this embodiment organic combustible gas.
It, can organic combustible gas in real-time detection heated air circulation device 100 by detection module 200 in this embodiment
Concentration, then by PLC300 according to the real-time concentration of organic combustible gas control heated air circulation device 100 in exhaust gas it is specific
Flow direction；That is, controlling exhaust gas in heated air circulation device 100 according to the real-time concentration of organic combustible gas by PLC300
It circulates again, or exhaust gas is discharged in waste gas recovery mechanism 400.
In this embodiment, the multiple heated air circulation device 100 is connected with waste gas recovery mechanism 400, Mei Gere
When organic combustible gas reaches preset concentration in wind circulator 100, exhaust gas therein is discharged to waste gas recovery mechanism 400
In, the exhaust gas that baking printed matter generates is focused on by waste gas recovery mechanism 400, not only improves the effect of gas sampling in this way
Rate, while can avoid separately handling exhaust gas and causing to handle insufficient situation.
The structure of the heated air circulation device 100 is specific as follows, and each heated air circulation device 100 includes being sequentially connected
Air intake blower fan 10, baking oven 20 and return air fan 30；The baking oven 20 is for toasting printed matter, and the air intake blower fan 10 is for inhaling
Fresh air enters baking oven 20, and the return air fan 30 is used to inhale useless containing organic combustible gas after baking printed matter in baking oven 20
Gas；Each heated air circulation device 100 further includes having inlet air door 40 and return air damper 50.
In this embodiment, the return air fan 30 inhales the exhaust gas in heated air circulation device 100, so that the hot wind follows
Waste gas circulation flowing in loop device 100, exhaust gas is sucked out return air fan 30 from baking oven 20, and is discharged in baking oven 20, makes
Waste gas circulation flowing is obtained, the exhaust gas circulated can accelerate to mix with newly generated organic combustible gas, improve combustable organic gas
The concentration in the offgas of body, during return air, exhaust gas is heated before returning to baking oven 20 by the second heating wire 70,
The baking efficiency of baking printed matter can be improved in this way, exhaust gas returns to baking oven 20 by return air damper 50.
The air intake blower fan 10 inhales fresh air and fresh air is entered in heated air circulation device 100, and specifically, fresh air first passes through
The heating of first heating wire 60, heated fresh air enter in baking oven 20 by inlet air door 40.
When printed matter tail gas is concentrated, opening for the return air damper 50 and inlet air door 40 is controlled especially by PLC300
Degree further controls the ratio of fresh air and return air (originally in the exhaust gas of heated air circulation device 100), guarantees that printed matter is sufficiently dry
And concentration increases efflux gas concentration as far as possible, is promoted and followed in baking oven under the premise of being not up to organic combustible gas explosion ratio value
Ring gas gross.
Detection module 200, for organic combustible gas in negative pressure in real-time detection baking oven 20 and heated air circulation device 100
Concentration；PLC300 controls exhaust gas in heated air circulation device 100 according to the concentration of negative pressure and organic combustible gas in baking oven 20
Middle circulation.
Specifically, concentration control air inlet wind of the PLC300 according to organic combustible gas in negative pressure in baking oven 20 and baking oven 20
The aperture of door 40 and return air damper 50 makes the mixed gas of exhaust gas in heated air circulation device 100 or exhaust gas and fresh air in hot wind
It is circulated in circulator 100, makes organic combustible gas concentration in heated air circulation device 100 within a preset range.
In this embodiment, when organic combustible gas is concentrated, need to control the concentration range of organic combustible gas；It is organic
The excessive concentration of fuel gas be easy to cause explosion, if gas concentration is too low in heated air circulation device 100, concentration is just not achieved
Organic combustible gas and the purpose for focusing on organic combustible gas.
The PLC300 is according to organic combustible gas concentration control exhaust duct 410 and hot wind in heated air circulation device 100
The on-off of circulator 100.
Specifically, when the concentration of organic combustible gas in heated air circulation device 100 is in default range, PLC300 is controlled
Heated air circulation device 100 processed is connected to waste gas recovery mechanism 400, in general, the fuel gas in heated air circulation device 100
Concentration in not up to preset range, PLC300 control exhaust gas circulated in hot gas cycle device to be turned up in exhaust gas
The concentration of organic combustible gas.
The PLC300 predetermined organic combustable gas concentration critical value, the organic combustible gas concentration critical value, which is less than, to be had
Machine flammable gas explosion concentration value, organic combustible gas concentration is reaching organic combustible gas concentration in heated air circulation device 100
Before critical value, PLC300, which controls the heated air circulation device 100, fills the exhaust gas in heated air circulation device 100 in hot air circulation
It sets in 100 and circulates, to improve the concentration of organic combustible gas in heated air circulation device 100.
The scheduled organic combustible gas concentration critical value of PLC300 is in the preset range of the concentration of organic combustible gas；Have
Machine flammable gas explosion concentration value is higher than the preset range of the concentration of organic combustible gas.
When organic combustible gas concentration in heated air circulation device 100 reaches organic combustible gas concentration critical value,
PLC300 control exhaust duct 410 is connected to heated air circulation device 100, and then the exhaust gas in heated air circulation device 100 is discharged to
In waste gas recovery mechanism 400.
Specifically, the heated air circulation device 100 is provided with shutter electric operator and return air door is electronic holds
Row mechanism, PLC300 respectively drive inlet air door by control shutter electric operator and return air door electric operator
40 and return air damper 50, the aperture of inlet air door 40 and return air damper 50 is controlled with this, and then control intake (amount of fresh air)
With the ratio of return air amount (the formerly exhaust gas in heated air circulation device 100).
In this embodiment, heated air circulation device 100 is provided with air draft air door and exhaust door electric operator,
PLC300 drives air draft air door, control heated air circulation device 100 and waste gas recovery machine by control exhaust door electric operator
Structure 400 is connected to, and it is critical that the specific concentration for working as the organic combustible gas in heated air circulation device 100 reaches organic combustible gas concentration
When value, PLC300 controls exhaust door electric operator and drives air draft door opening, in this way, just making heated air circulation device 100
It is connected to the waste gas recovery mechanism 400, the exhaust gas in heated air circulation device 100 is discharged in waste gas recovery mechanism 400.
The concentration of organic combustible gas in heated air circulation device 100 reach organic combustible gas concentration critical value it
Before, the air draft air door is to close, i.e., the inner space in heated air circulation device 100 does not connect with waste gas recovery mechanism 400
Logical, return air fan 30 drives exhaust gas to circulate in heated air circulation device 100, continues mixed with newly generated organic combustible gas
Close (baking printed matter can newly generate organic combustible gas), so as to improve in heated air circulation device 100 organic combustible gas it is dense
Degree.
Detection module 200 includes the B/P EGR Back Pressure Transducer EGR 210 of negative pressure and combustable organic in detection baking oven 20 in detection baking oven 20
The concentration sensor 220 of the concentration of gas.
The heated air circulation device 100 further includes at least one first connecting tube 80, and first connecting tube 80 is used for will
It is returned in baking oven 20 from the exhaust gas being discharged in baking oven 20, first connecting tube 80 is connected to return air fan 30 and baking oven 20.
Specifically, the exhaust duct 410 in waste gas recovery mechanism 400 is connected with first connecting tube 80.
First connecting tube 80 is provided with bleeding point 81, and concentration sensor 220 detects the exhaust gas that bleeding point 81 samples.
The heated air circulation device 100 further includes at least one second connecting tube 90, and second connecting tube 90 is used for will
Exhaust gas is discharged to outside baking oven 20 in baking oven 20, and second connecting tube 90 is connected to baking oven 20 and return air fan 30, the return air wind
Machine 30 passes through the first connecting tube 80 by the exhaust gas in the second connecting tube 90 absorption baking oven 20 again and returns to exhaust gas in baking oven 20, if
Air intake blower fan 10 is open state at this time, returns to exhaust gas in baking oven 20 and mixes with fresh air, at the same time, also with it is newly generated organic
Fuel gas mixing.
The heated air circulation device 100 further includes the first heating wire 60 for heating fresh air, first heating wire 60
Connecting place in the air intake blower fan 10 and baking oven 20.
By heating fresh air, so that fresh air just has enough temperature before entering baking oven 20, raising can reach in this way
Dry the drying efficiency of printed matter.
The heated air circulation device 100 further includes the second heating wire 70 for heating hot wind, second heating wire 70
In first connecting tube 80, in this embodiment, the exhaust gas turned again in baking oven 20 passes through the second heating wire 70
Heating has the function that improve 20 drying efficiency of baking oven.
The application is additionally provided with man-machine interface 500, and man-machine interface 500 can show each air intake blower fan 10 and each return air wind
The operating status of machine 30, man-machine interface 500 may also display the concentration of organic combustible gas in heated air circulation device 100, and dry
Negative pressure in case 20, operator also pass through the manipulation of man-machine interface 500 drying printed matter and the operation of the system of tail gas are concentrated.
The application controls whole system fully automatic operation by PLC300, labor-saving while to control precision higher, leads to
It crosses man-machine interface 500 to visualize the operating status of system, organic combustible gas is concentrated, reduce externally discharge, save to outlet
The processing cost of exhaust gas is put, waste gas circulation flowing in heated air circulation device 100 is controlled, reduces fresh air and enters, reduces heating fresh air
Energy consumption.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of drying printed matter and the system that tail gas is concentrated characterized by comprising
Multiple heated air circulation devices, each heated air circulation device include the air intake blower fan being sequentially connected, baking oven and return air wind
Machine；The baking oven enters baking oven for inhaling fresh air for toasting printed matter, the air intake blower fan, and the return air fan is dried for inhaling
Exhaust gas containing organic combustible gas after baking printed matter in case；Each heated air circulation device further include have inlet air door and
Return air damper；
Detection module, the concentration for organic combustible gas in negative pressure in real-time detection baking oven and heated air circulation device；
Waste gas recovery mechanism, for recycling the exhaust gas of multiple heated air circulation devices, the waste gas recovery mechanism is provided with multiple points
The exhaust duct not being connected with multiple heated air circulation devices；
PLC, for the concentration control inlet air door and return air damper according to organic combustible gas in negative pressure in baking oven and baking oven
Aperture, circulate the mixed gas of exhaust gas or exhaust gas in heated air circulation device and fresh air in heated air circulation device,
Make organic combustible gas concentration in heated air circulation device within a preset range.
2. a kind of drying printed matter as described in claim 1 and the system that tail gas is concentrated, it is characterised in that: the PLC according to
The on-off of the control of organic combustible gas concentration exhaust duct and heated air circulation device in baking oven.
3. a kind of drying printed matter as claimed in claim 2 and the system that tail gas is concentrated, it is characterised in that: the PLC is predetermined
Organic combustible gas concentration critical value, the organic combustible gas concentration critical value are less than organic combustible gas explosion ratio value,
For organic combustible gas concentration before reaching organic combustible gas concentration critical value, PLC controls the heat in heated air circulation device
Wind circulator circulates the exhaust gas in heated air circulation device in heated air circulation device.
4. a kind of drying printed matter as claimed in claim 3 and the system that tail gas is concentrated, it is characterised in that: heated air circulation device
In organic combustible gas concentration when reaching organic combustible gas concentration critical value, PLC controls exhaust duct and hot air circulation fills
Connection is set, and then the exhaust gas in heated air circulation device is discharged in waste gas recovery mechanism.
5. a kind of drying printed matter as described in claim 1 and the system that tail gas is concentrated, it is characterised in that: detection module includes
Detect the concentration sensor of the B/P EGR Back Pressure Transducer EGR of negative pressure and the concentration of organic combustible gas in detection baking oven in baking oven.
6. a kind of drying printed matter as described in claim 1 and the system that tail gas is concentrated, it is characterised in that: the hot air circulation
Device further includes at least one first connecting tube, and first connecting tube is used to the exhaust gas being discharged from baking oven being returned to baking oven
In.
7. a kind of drying printed matter as claimed in claim 6 and the system that tail gas is concentrated, it is characterised in that: first connection
Pipe is provided with bleeding point, and concentration sensor detects the exhaust gas of bleeding point sampling.
8. a kind of drying printed matter as claimed in claim 6 and the system that tail gas is concentrated, it is characterised in that: the hot air circulation
Device further includes at least one second connecting tube, and the second connecting tube connection baking oven and return air fan, the return air fan are logical
The exhaust gas crossed in the second connecting tube absorption baking oven passes through the first connecting tube again and returns to exhaust gas in baking oven.
9. a kind of drying printed matter as described in claim 1 and the system that tail gas is concentrated, it is characterised in that: the hot air circulation
Device further includes the first heating wire for heating fresh air, and first heating wire is in being connected for the air intake blower fan and baking oven
Place.
10. a kind of drying printed matter as claimed in claim 6 and the system that tail gas is concentrated, it is characterised in that: the hot wind follows
Loop device further includes the second heating wire for heating hot wind, and second heating wire is in first connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456464.6A CN110154521A (en) | 2019-05-29 | 2019-05-29 | A kind of system dried printed matter and tail gas is concentrated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456464.6A CN110154521A (en) | 2019-05-29 | 2019-05-29 | A kind of system dried printed matter and tail gas is concentrated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110154521A true CN110154521A (en) | 2019-08-23 |
Family
ID=67629994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910456464.6A Pending CN110154521A (en) | 2019-05-29 | 2019-05-29 | A kind of system dried printed matter and tail gas is concentrated |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758659A (en) * | 2009-12-31 | 2010-06-30 | 孙宗长 | Device for increasing concentration and decreasing emission of waste gas in printer |
| CN104128303A (en) * | 2014-06-30 | 2014-11-05 | 宁波欣达印刷机器有限公司 | Drying box for printing and coating equipment |
| CN106379044A (en) * | 2016-09-09 | 2017-02-08 | 广东芬尼克兹环保设备有限公司 | Purification treatment system for organic waste gas and control method |
| CN207014964U (en) * | 2017-05-15 | 2018-02-16 | 林景峰 | Intaglio printing drying unit |
| CN108312706A (en) * | 2018-02-09 | 2018-07-24 | 东莞智源彩印有限公司 | A kind of full automatic high efficiency heated-air drying control machine for intaglio printing press |
| CN109016824A (en) * | 2018-06-20 | 2018-12-18 | 秦皇岛格瑞因环境工程有限公司 | Furnace drying method and drying system suitable for intaglio printing |
| CN208558624U (en) * | 2018-06-20 | 2019-03-01 | 秦皇岛格瑞因环境工程有限公司 | Drying system suitable for intaglio printing |
| CN210362971U (en) * | 2019-05-29 | 2020-04-21 | 宁波欣达印刷机器有限公司 | System for drying printed matter and concentrating tail gas |
-
2019
- 2019-05-29 CN CN201910456464.6A patent/CN110154521A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758659A (en) * | 2009-12-31 | 2010-06-30 | 孙宗长 | Device for increasing concentration and decreasing emission of waste gas in printer |
| CN104128303A (en) * | 2014-06-30 | 2014-11-05 | 宁波欣达印刷机器有限公司 | Drying box for printing and coating equipment |
| CN106379044A (en) * | 2016-09-09 | 2017-02-08 | 广东芬尼克兹环保设备有限公司 | Purification treatment system for organic waste gas and control method |
| CN207014964U (en) * | 2017-05-15 | 2018-02-16 | 林景峰 | Intaglio printing drying unit |
| CN108312706A (en) * | 2018-02-09 | 2018-07-24 | 东莞智源彩印有限公司 | A kind of full automatic high efficiency heated-air drying control machine for intaglio printing press |
| CN109016824A (en) * | 2018-06-20 | 2018-12-18 | 秦皇岛格瑞因环境工程有限公司 | Furnace drying method and drying system suitable for intaglio printing |
| CN208558624U (en) * | 2018-06-20 | 2019-03-01 | 秦皇岛格瑞因环境工程有限公司 | Drying system suitable for intaglio printing |
| CN210362971U (en) * | 2019-05-29 | 2020-04-21 | 宁波欣达印刷机器有限公司 | System for drying printed matter and concentrating tail gas |
Non-Patent Citations (2)
| Title |
|---|
| 许鹏;陈芳园;黄清明;包能胜;白文华;: "凹版印刷VOCs废气的净化治理联用工艺", 轻工机械, no. 03 * |
| 黄清明;陈芳园;许鹏;白文华;: "凹版印刷机干燥系统节能减排效能研究体系构建", 包装工程, no. 03 * |
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