CN111845058B - Protective film drying waste gas treatment device and process thereof - Google Patents
Protective film drying waste gas treatment device and process thereof Download PDFInfo
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- CN111845058B CN111845058B CN202010722181.4A CN202010722181A CN111845058B CN 111845058 B CN111845058 B CN 111845058B CN 202010722181 A CN202010722181 A CN 202010722181A CN 111845058 B CN111845058 B CN 111845058B
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- 238000001035 drying Methods 0.000 title claims abstract description 81
- 230000001681 protective effect Effects 0.000 title claims abstract description 44
- 239000002912 waste gas Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title abstract description 13
- 238000003795 desorption Methods 0.000 claims abstract description 113
- 238000001179 sorption measurement Methods 0.000 claims abstract description 92
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000007789 gas Substances 0.000 claims abstract description 27
- 238000007639 printing Methods 0.000 claims abstract description 22
- 238000011068 loading method Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000012546 transfer Methods 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 20
- 210000000078 claw Anatomy 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003345 natural gas Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 11
- 238000007599 discharging Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0018—Protection means against injury to the operator
-
- 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
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a protective film drying waste gas treatment device and a process thereof, wherein the protective film drying waste gas treatment device comprises a printing mechanism, a drying furnace channel, an air channel switching mechanism, a desorption chamber I, an adsorption chamber I, a desorption chamber II, an adsorption chamber II, a loading and unloading mechanism, a recovery pipeline, a heat exchange mechanism I, an RTO combustion chamber, a chimney, a transmission pipeline, a heat exchange mechanism II and a mixed air gas collecting box; the printing mechanism is positioned at one side of the drying oven channel, the air channel switching mechanism is positioned at the other side of the drying oven channel, the desorption chamber I and the adsorption chamber I are simultaneously positioned at one side of the air channel switching mechanism, and the desorption chamber II and the adsorption chamber II are positioned at one side of the desorption chamber I; the loading and unloading mechanism is positioned at the tops of the desorption chamber II and the adsorption chamber II, and the recovery pipeline is connected with the air mixing and collecting box. The invention is provided with the air duct switching mechanism, so that the air duct switching and the switching of the adsorption system can be completed rapidly; and a traction mechanism and a loading and unloading mechanism are arranged outside the desorption chamber, so that the transfer of the activated carbon plate can be completed rapidly; meanwhile, the treated waste gas is connected to RTO waste gas treatment equipment, and the purified gas can be recycled and dried for use without natural gas combustion for heat supply.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment equipment, and particularly relates to a protective film drying waste gas treatment device.
Background
Currently, there are various methods for treating paint spray exhaust gas: activated carbon adsorption method, RTO catalytic combustion method, spray paint waste gas treatment and washing absorption method, direct combustion spray paint waste gas treatment, photooxidation reaction and the like; different processing methods are selected according to different requirements;
1) At present, an active carbon adsorption method is used as a relatively common waste gas treatment method, a set of desorption devices are required to be matched for use, and the following problems easily occur in the use process; if the activated carbon needs to be desorbed, the adsorption chamber needs to be replaced with an activated carbon plate and then stops working; thereby reducing the production efficiency;
2) The source of the hot drying gas of the common protective film drying system is mostly to burn natural gas for supplying heat, so that the natural gas resource dependence is heavy and the cost is high;
3) In a common activated carbon adsorption and desorption system, the activated carbon transfer process is complex during desorption, and the operation is inconvenient or manual assistance is needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a protective film drying waste gas treatment device, which is provided with an air channel switching mechanism, has a simple structure and can rapidly finish the switching of an air channel and the switching use of an adsorption system; and a traction mechanism and a loading and unloading mechanism are arranged outside the desorption chamber, so that the rapid transfer of the activated carbon plate can be automatically completed; meanwhile, the treated waste gas is connected to RTO waste gas treatment equipment, and the purified gas can be recycled for drying without using natural gas combustion for heat supply.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a protection film drying waste gas treatment device comprises a printing mechanism, a drying furnace channel, an air channel switching mechanism, a desorption chamber I, an adsorption chamber I, a desorption chamber II, an adsorption chamber II, a loading and unloading mechanism, a recovery pipeline, a heat exchange mechanism I, an RTO combustion chamber, a chimney, a transmission pipeline, a heat exchange mechanism II and a mixed air gas collecting box; the printing mechanism is positioned at one side of the drying oven channel, the air channel switching mechanism is positioned at the other side of the drying oven channel, the desorption chamber I and the adsorption chamber I are simultaneously positioned at one side of the air channel switching mechanism, and the desorption chamber II and the adsorption chamber II are positioned at one side of the desorption chamber I; the loading and unloading mechanism is positioned at the tops of the desorption chamber II and the adsorption chamber II, and one side of the desorption chamber II and one side of the adsorption chamber II are provided with an air channel switching mechanism; the recovery pipeline is connected with the air duct switching mechanism and the air mixing and collecting box.
The printing mechanism comprises a support frame I, a connecting frame, a machine base, a flattening roller, a support plate, a screw rod I and a sliding seat; the support frame I is fixedly connected with the stand through a connecting frame; the machine base carries a printing mechanism, and the protective film enters the printing mechanism for printing after being flattened by the flattening roller; the support plate is fixedly connected with the support frame I, a through groove is formed in the support plate, and the sliding seat is positioned in the through groove; the flattening roller is movably connected with the supporting plate; the flattening roller comprises a rubber sleeve, a supporting elastic sheet, a connecting seat, a connecting rod, a screw rod, a fixing sleeve I and a fixing sleeve II; two ends of the supporting elastic sheet are fixedly connected with the fixing sleeve II; the screw rod penetrates through the fixed sleeve II and is movably connected with each other through a bearing, and a reverse thread is arranged in the middle of the screw rod; the fixed sleeve I is movably connected with the screw rod through threads; the fixed sleeve I and the supporting spring plate are respectively provided with a connecting seat; the connecting rod is movably fixed on the sleeve I and the connecting seat on the supporting spring plate through a pin shaft; the rubber sleeve is sleeved with a supporting elastic sheet; and the fixed sleeve II is movably connected with the sliding seat.
The drying oven is provided with a wind direction adjusting mechanism, a wind pressure adjusting mechanism and an auxiliary transmission mechanism; the wind direction adjusting mechanism comprises a motor II, an air knife and an air duct; one end of the air knife is fixed on the side wall of the drying oven channel through a fixed shaft, a chain wheel is arranged on the fixed shaft, a pipe sleeve is arranged at the other end of the air knife, and threads are arranged on the pipe sleeve; the chain wheels on the air knives are connected through chains; the shaft end of the motor II is provided with a chain wheel and is connected with the chain wheel at the fixed shaft end of the air knife through a chain; the other end of the air knife is movably connected with an air channel through a pipe sleeve thread, and the air channel is fixed on the side wall of the other side of the drying furnace channel.
The wind pressure regulating mechanism is fixed in the air duct; the wind pressure regulating mechanism comprises a cylinder II, a support frame II, a rolling shaft I, a connecting arm I and a connecting arm II; the cylinder II is fixed on the drying furnace path; two ends of the support frame II are fixedly connected with the inner wall of the air duct; the rolling shafts I penetrate through the supporting frames II and are uniformly distributed, and baffle plates I are arranged on the rolling shafts I; the end of the air cylinder II is movably connected with one end of the connecting arm I; the connecting arm II one end swing joint connecting arm I other end, connecting arm II other end fixed connection roller I.
The auxiliary transmission mechanism comprises a motor III, a power roller, a pressure bearing roller, a spring I, a bolt, a fixed seat, a fixed block II and a connecting seat; the motor III is fixed on the outer wall of the drying furnace channel, and the shaft end of the motor III is provided with a chain wheel; two ends of the power roller are fixed on the drying furnace path through fixing seats, and one end of the power roller is provided with a chain wheel which is connected with a chain wheel at the end of the shaft of the motor III through a chain; the fixed block II is fixed at the bottom of the fixed seat; the bolt is sleeved with the spring I and penetrates through the fixed block II and the connecting seat, and the spring I is positioned between the connecting seat and the fixed block II; and two ends of the pressure-bearing roller are movably connected with the connecting seats through the fixed shafts.
The air duct switching mechanism comprises a diversion bin and a control mechanism; one side of the diversion bin is connected with two air inlet pipelines, and the top of the diversion bin is provided with a control mechanism; the control mechanism comprises a rolling shaft II, a cylinder III, a toothed plate I and a guide rail I; one end of the rolling shaft II is inserted into the diversion bin and provided with a baffle II, and the other side of the rolling shaft II is provided with a gear; the air cylinder III is fixed on the outer wall of the top of the diversion bin, and the guide rail I is fixed at the other end of the air cylinder III; the toothed plate I is fixed in the guide rail I and meshed with the gear; and the end of the cylinder III is fixedly connected with one end of the toothed plate I.
The air inlet pipeline and the air outlet pipeline at two ends of the desorption chamber I are respectively connected with an air channel switching mechanism; the desorption chamber I comprises a traction mechanism and a desorption bin I; the traction mechanism comprises a traction track, a mounting seat, a chain block, a fixed block III, a connecting arm III and a motor V; the traction track is provided with a toothed plate II and a guide rail; the bottom of the mounting seat is provided with a pulley which is arranged in a guide rail on the traction rail; the chain block is provided with rollers and connecting strips, the rollers are arranged in guide rails on the traction rail, the connecting strips are arranged at two ends of the chain block, and the chain block is connected with each other through the connecting strips to form a chain; the motor V is fixed on the mounting seat, and a gear is arranged at the shaft end of the motor V and meshed with the toothed plate II; one end of the connecting arm III is fixedly connected with the mounting seat, and the other end of the connecting arm III is fixedly connected with the chain block.
A sliding rail I and a traction rail are arranged in the desorption bin I; an outlet is arranged at one side of the desorption bin I, and a sealing door and an air cylinder VI are arranged at the outlet; the top shaft end of the air cylinder VI is fixedly connected with a sealing door.
Two pairs of fixed blocks III are arranged at one end of the traction track and are connected with each other through a connecting arm IV; the fixed block III is connected with the chain block through a connecting strip; the fixed block III is provided with a clamp claw I; the clamp claw I comprises a cylinder V, a connecting arm V, a guide rail II, a clamp plate, a gear and a connecting arm IV; the cylinder V is fixed on a pair of fixed blocks III, the guide rail II is fixed on the other fixed block III, and meanwhile, a fixed shaft is arranged on the gear and is fixed on one side of the guide rail II through the fixed shaft; the clamp plate is arranged in the guide rail II, and teeth are arranged on the clamp plate and meshed with the gears; one end of the connecting arm V is movably connected with the top shaft end of the cylinder V through a pin shaft, and the other end of the connecting arm V is fixedly connected with a fixed shaft on the gear.
The desorption bin I is provided with a movable connection mechanism which comprises a motor IV, a connecting block, a guide shaft, a switching traction track and a screw rod VI; the motor IV is fixed on the outer wall of the desorption bin I, and the shaft end is provided with a bevel gear; the two ends of the guide shaft and the screw rod VI are fixed on the outer wall of the desorption bin I through connecting blocks, and the shaft end of the screw rod VI is provided with a conical gear and meshed with the conical gear at the shaft end of the motor IV; the connecting plate is arranged on the transfer traction track, and the guide shaft penetrates through the connecting plate.
The adsorption chamber I comprises an adsorption bin I, a sealing door, a sliding rail II, an air cylinder VI, a baffle I and a baffle II; an inlet and an outlet of the activated carbon plate I are formed in one side of the adsorption bin I, a sealing door and a cylinder VI are arranged at the outlet, an ejection shaft of the cylinder VI is fixedly connected with the sealing door, and the sealing door is driven to close and open and close the outlet by ejection or recovery of the cylinder VI; the baffle I, the baffle II and the sliding rail II are fixed in the adsorption bin I; the baffle I is positioned at the air inlet end of the adsorption chamber I, and the baffle II is positioned at the air outlet end of the adsorption chamber I; the active carbon plate I is arranged in the sliding rail II.
The desorption chamber II comprises a cover plate I, an oil cylinder I, an adjusting mechanism, a guide rail III and a desorption bin II; one side of the cover plate I is connected with one side of the desorption bin II through a rotating shaft; the oil cylinder I is fixed at two ends of the desorption bin II, and an ejection shaft of the oil cylinder I is connected with the cover plate I through a fixed seat; the guide rail III is fixed on the inner wall of the desorption bin II; the adjusting mechanism is fixed on the outer wall of one side of the desorption bin II; the adjusting mechanism comprises a fixed disc I, a fixed disc II, a fixed disc III, a base plate, a pipe sleeve, a sliding block and a locker; one end of the pipe sleeve is provided with a ball head, and the fixed disc I is fixed on the fixed disc II through a bolt; the fixed disc III is sleeved with the fixed disc II, and a ring-shaped T-shaped guide rail is formed between the fixed disc III and the fixed disc II; the sliding block is arranged in the annular T-shaped guide rail, and a locking bolt is arranged on the sliding block; one end of the locker is movably connected with the top end of the pipe sleeve through a pin shaft, and the other end of the locker is connected with the sliding block through a pin shaft; the centers of the fixed disc I, the fixed disc II and the fixed disc III jointly form a movable space of the lasso ball head; the diameters of the fixed disc I, the fixed disc III and the central hole are smaller than those of the ball head; the center hole of the fixed disk II is larger than the diameter of the ball head; the base plate is positioned at the bottom of the fixed disc III, and the central hole of the base plate is smaller than the diameter of the ball head; fixing the fixed disc I, the fixed disc II, the fixed disc III and the backing plate on the outer wall of the desorption bin II through bolts; the steam pipeline passes through the pipe sleeve and enters the desorption bin II.
The adsorption chamber II comprises an adsorption bin II, a cover plate II, an oil cylinder II and a sliding rail III; one side of the cover plate II is movably connected with one side of the adsorption bin II through a rotating shaft; the oil cylinder II is fixed on a side arm of the adsorption bin II, and a top shaft of the oil cylinder II is movably connected with the cover plate II through a fixed block; the sliding rail III is fixed on the inner wall of the adsorption bin II and used for bearing the activated carbon plate II.
The loading and unloading mechanism comprises a frame, an installation frame I and an installation frame II; the frame is provided with a motor IV, a lead screw II and a slide rail V; the motor IV is fixed at one end of the frame, and the shaft end is provided with a bevel gear; two ends of the screw rod II are fixed on the frame through a fixed seat, and one end of the screw rod II is provided with a conical gear which is meshed with a conical gear at the end of the motor IV shaft; the mounting frame I comprises a fixing frame, a motor VI and a screw rod III; the bottom of the fixing frame is provided with a fixing block V and a guide block, and the top of the fixing frame is provided with a guide rail; the guide block is arranged in the slide rail V; the motor VI is fixed at one end of the fixed frame, and the shaft end of the motor VI is provided with a chain wheel; two ends of the screw rod III are fixed on the fixing frame through fixing seats, and one end of the screw rod III is provided with a chain wheel and is connected with a chain wheel at the shaft end of the motor VI through a chain; the screw rod II passes through the fixed block V.
The mounting frame II comprises a fixing plate I, a fixing plate II, a lead screw V, a guide rod, a supporting arm and a fixing arm; the bottom of the fixed plate I is provided with a sliding block and is arranged in a guide rail at the top of the fixed frame, and the top of the fixed plate I is provided with a fixed block; a motor I is arranged on the fixed plate II, and a chain wheel is arranged at the shaft end of the motor I; one end of the lead screw V is provided with a chain wheel and is connected with a chain wheel at the end of the motor I shaft through a chain; the top end of the lead screw V penetrates through the fixed plate II and is locked and movably connected with the fixed plate II through a locking cap, and the other end of the lead screw V is movably connected with the fixed plate II through threads; one end of the guide rod penetrates through the fixing plate I and is fixedly connected with the fixing plate II; the two ends of the fixed plate II are provided with supporting arms; one end of the fixed arm is movably connected with one end of the supporting arm through a rotating shaft; the fixed arm is provided with a clamp claw II; the screw rod III passes through the fixed block at the top of the fixed plate I.
Preferably, a spring II is arranged at the bottom of the guide rail III.
A process for treating the drying waste gas of a protective film comprises the following steps:
1) Drying the protective film; introducing the purified waste gas into a drying furnace path through a draught fan to dry the protective film; the drying furnace path is divided into seven drying bins which are communicated with each other; a temperature sensor is arranged in each drying bin; the setting temperature ranges of the drying bin are 55-65 ℃, 65-75 ℃, 75-85 ℃, 85-95 ℃, 75-85 ℃, 65-75 ℃ and 55-65 ℃ respectively; the optimal temperature is 60 ℃, 70 ℃, 80 ℃, 90 ℃, 80 ℃, 70 ℃ and 60 ℃ respectively; the wind pressure control mechanism is used for controlling the wind quantity and the wind speed, when the temperature sensed by the temperature sensor is lower than the optimal temperature set value, the corresponding wind pressure control mechanism is used for opening the wind inlet of the wind channel, so that the wind speed and the wind quantity are improved to ensure the temperature to be stable;
2) The air duct switching mechanism changes the air duct to guide the waste gas; providing an activated carbon saturation signal by a VOC detection sensor, and then rapidly switching an air inlet pipeline by an air channel switching mechanism to use another group of adsorption systems;
3) Adsorption and desorption of waste gas; waste gas firstly enters an adsorption chamber I and is adsorbed by an active carbon plate, and then enters an adsorption chamber II and is adsorbed by the active carbon plate; after the air duct switching mechanism switches the adsorption system, the activated carbon plate in the adsorption chamber is transferred into the desorption chamber through the traction mechanism and the loading and unloading mechanism for desorption; the surface value of the activated carbon ratio is 900-1200 square meters per gram, and the optimal range is 1000-1200 square meters per gram; the adsorption chamber works for 36 hours and then carries out desorption treatment on the activated carbon plate;
4) Waste gas is recovered, and the absorbed waste gas is transmitted into a waste gas mixing and collecting box through a draught fan and a waste gas pipeline; then enters an RTO combustion furnace for combustion and oxidation; then discharging a part of purified gas reaching the emission standard, cooling by a heat exchanger, and discharging by a chimney;
5) Recycling purified gas; drawing a part of purified gas discharged through the chimney through a draught fan, and then exchanging heat through a circulating water heat exchanger to ensure that the temperature is below 120 ℃; and then the protective film is dried in a drying furnace path.
Compared with the prior art, the invention has the beneficial effects that:
1) The invention is provided with two desorption and adsorption systems, and each adsorption and desorption system is symmetrically provided with two groups; an air duct switching mechanism is arranged between the two desorption and adsorption systems and between the adsorption and desorption systems and pipelines; when one group of adsorption and desorption systems is detected to be saturated, the air channel switching mechanism can rapidly switch the air inlet channel to work by using the other group of adsorption box desorption systems; carrying out desorption treatment on the other group of adsorption chambers while carrying out adsorption treatment on the waste gas;
2) The invention is provided with a traction mechanism or a loading and unloading mechanism for the activated carbon plate outside the desorption chamber, and when the activated carbon plate needs to be transported to the desorption chamber for desorption, the activated carbon plate can be transported rapidly through the traction mechanism or the loading and unloading mechanism; the frequent replacement of the activated carbon plate is avoided to achieve continuous production, the environment is protected, the energy is saved, and the cost is saved;
3) The auxiliary transmission mechanism is arranged on the drying furnace channel, can provide power for the transmission of the protective film, assists the transmission of the protective film, and can adjust the movement distance of the joint bearing press roller through the bolt and adjust the transmission power according to the elasticity of the spring.
Drawings
FIG. 1 is a schematic diagram of a protective film drying exhaust treatment device according to the present invention;
FIG. 2 is a schematic diagram of a printing mechanism in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 3 is a schematic view of the structure of a flattening roller of a protective film drying exhaust gas treatment device of the present invention;
FIG. 4 is a schematic diagram showing the internal structure of a drying oven in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 5 is a schematic diagram of a pressure regulating mechanism in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 6 is a schematic diagram of a mechanism for switching air channels in a device for treating waste gas by drying a protective film according to the present invention;
FIG. 7 is a schematic diagram showing the structure of a desorption chamber I in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 8 is a schematic diagram of a traction mechanism in a protective film drying exhaust treatment device according to the present invention;
FIG. 9 is a schematic diagram showing the structure of a jaw I in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 10 is a schematic cross-sectional view of a desorption chamber I in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 11 is a schematic diagram showing the structure of an adsorption chamber I in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 12 is a schematic diagram showing the structure of a desorption chamber II in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 13 is a schematic view showing the structure of an adjusting mechanism in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 14 is a schematic view showing the structure of an adsorption chamber II in a protective film drying exhaust gas treatment apparatus according to the present invention;
FIG. 15 is a schematic view of a loading and unloading mechanism in a protective film drying exhaust gas treatment device according to the present invention;
FIG. 16 is a schematic diagram showing a second construction of a loading/unloading mechanism in a protective film drying exhaust gas treatment apparatus according to the present invention;
in the figure: 1. a printing mechanism; 101. a supporting frame I; 102. a connecting frame; 103. a base; 104. a flattening roller; 1041. a rubber sleeve; 1042. a supporting spring plate; 1043. a connecting seat; 1044. a connecting rod; 1045. a screw rod; 1046. a fixed sleeve I; 1047. a fixed sleeve II; 105. a support plate; 106. a screw rod I; 107. a sliding seat; 2. a drying oven; 21. a wind direction adjusting mechanism; 211. a motor II; 212. an air knife; 213. an air duct; 22. a wind pressure adjusting mechanism; 221. a cylinder II; 222. a support II; 223. a rolling shaft I; 2231. a baffle I; 224. a connecting arm I; 225. a connecting arm II; 23. an auxiliary transmission mechanism; 231. a motor III; 232. a power roller; 233. a pressure bearing roller; 234. a spring I; 235. a bolt; 236. a fixing seat; 237. a fixed block II; 238. a connecting seat; 3. an air duct switching mechanism; 31. a diversion bin; 32. a control mechanism; 321. a rolling shaft II; 3211. a baffle II; 322. a cylinder III; 323. toothed plate I; 324. a guide rail I; 4. a desorption chamber I; 41. a traction mechanism; 411. traction rail; 4111. toothed plate II; 412. a mounting base; 4121. a pulley; 413. chain blocks; 4131. a roller; 4132. a connecting strip; 414. a motor V; 415. a connecting arm III; 416. a fixed block III; 42. a desorption bin I; 421. a sliding rail I; 43. a claw I; 431. a cylinder V; 432. a connecting arm V; 433. a guide rail II; 434. a nipper plate; 435. a gear; 436. a connecting arm IV; 44. a moving connection mechanism; 441. a motor IV; 442. a connecting block; 443. a guide shaft; 444. switching the traction rail; 445. a screw rod VI; 5. an adsorption chamber I; 51. adsorption bin I; 53. sealing the door; 54. a slide rail II; 55. a cylinder VI; 56. a baffle I; 57. a baffle II; 6. a desorption chamber II; 61. a cover plate I; 62. an oil cylinder I; 63. an adjusting mechanism; 631. a fixed disc I; 632. a fixed disk II; 633. a fixed disk III; 634. a backing plate; 635. a pipe sleeve; 6351. ball head; 636. a slide block; 637. a locker; 638. a steam pipe; 64. a guide rail III; 641. a spring II; 65. a desorption bin II; 7. an adsorption chamber II; 71. an adsorption bin II; 72. a cover plate II; 73. an oil cylinder II; 74. a slide rail III; 8. a loading and unloading mechanism; 81. a frame; 811. a motor IV; 812. a screw II; 813. a slide rail V; 82. a mounting rack I; 821. a fixing frame; 822. a motor VI; 823. a screw III; 8211. a fixed block V; 83. a mounting rack II; 831. a fixing plate I; 832. a fixing plate II; 8321. a motor I; 833. a lead screw V; 834. a guide rod; 835. a support arm; 836. a fixed arm; 837. a jaw II; 9. a recovery pipe; 10. a heat exchange mechanism I; 11. an RTO combustion chamber; 12. a chimney; 13. a transmission pipeline; 14. a heat exchange mechanism II; 15. an active carbon plate I; 16. an active carbon plate II; 17. and a wind mixing and air collecting box.
Detailed Description
The technical solution of the present invention will be further specifically described below with reference to fig. 1 to 16 for the understanding of those skilled in the art.
The protective film drying waste gas treatment device comprises a printing mechanism 1, a drying furnace path 2, an air duct switching mechanism 3, a desorption chamber I4, an adsorption chamber I5, a desorption chamber II 6, an adsorption chamber II 7, a loading and unloading mechanism 8, a recovery pipeline 9, a heat exchange mechanism I10, an RTO combustion chamber 11, a chimney 12, a transmission pipeline 13, a heat exchange mechanism II 14 and a mixed air gas collection box 17; the printing mechanism 1 is positioned on one side of the drying oven 2, the air duct switching mechanism 3 is positioned on the other side of the drying oven 2, the desorption chamber I4 and the adsorption chamber I5 are simultaneously positioned on one side of the air duct switching mechanism 3, and the desorption chamber II 6 and the adsorption chamber II 7 are positioned on one side of the desorption chamber I4; the loading and unloading mechanism 8 is positioned at the tops of the desorption chamber II 6 and the adsorption chamber II 7, and one sides of the desorption chamber II 6 and the adsorption chamber II 7 are provided with an air duct switching mechanism 3; the recovery pipeline is connected with the air duct switching mechanism 3 and the air mixing and collecting box 17.
The printing mechanism 1 comprises a support frame I101, a connecting frame 102, a machine base 103, a flattening roll 104, a support plate 105, a screw rod I106 and a sliding seat 107; the support frame I101 is fixedly connected with the stand 103 through the connecting frame 102; the machine base 103 carries a printing mechanism, and the protective film enters the printing mechanism for printing processing after being flattened by the flattening roller 104; the support plate 105 is fixedly connected with the support frame I101, a through groove is formed in the support plate 105, and the sliding seat 107 is positioned in the through groove; the flattening roller 104 is movably connected with the supporting plate 105; the flattening roller 104 comprises a rubber sleeve 1041, a supporting elastic sheet 1042, a connecting seat 1043, a connecting rod 1044, a screw rod 1045, a fixed sleeve I1046 and a fixed sleeve II 1047; two ends of the supporting spring 1042 are fixedly connected to the fixed sleeve II 1047; the lead screw 1045 penetrates through the fixed sleeve II 1047 and is movably connected with each other through a bearing, and a reverse thread is arranged in the middle of the lead screw 1045; the fixed sleeve I1046 is movably connected with the lead screw 1045 through threads; the fixed sleeve I1046 and the supporting spring 1042 are respectively provided with a connecting seat 1043; the connecting rod 1044 is movably fixed on the sleeve I1046 and the connecting seat 1043 on the supporting spring plate 1042 through a pin shaft; the rubber sleeve 1041 is sleeved with a supporting spring plate 1042; the screw rod 1045 is rotated to drive the fixed sleeve I1046 to gather towards the middle or separate towards the two sides, so that the supporting spring plate 1042 jacks up or flattens, and the function of flattening the protective film is achieved; the fixed sleeve II 1047 is movably connected with the sliding seat 107; the sliding seat 107 and the flattening roller 104 are driven to slide along the sliding groove by rotating the screw rod I106, so that the tension and the flattening force of the protective film can be adjusted in an auxiliary mode.
The drying oven 2 is provided with a wind direction adjusting mechanism 21, a wind pressure adjusting mechanism 22 and an auxiliary transmission mechanism 23; the wind direction adjusting mechanism 21 comprises a motor II 211, an air knife 212 and an air duct 213; one end of the air knife 212 is fixed on the side wall of the drying oven 2 through a fixed shaft, a chain wheel is arranged on the fixed shaft, a pipe sleeve is arranged at the other end of the air knife 212, and threads are arranged on the pipe sleeve; the chain wheels on each air knife 212 are connected through a chain; the shaft end of the motor II 211 is provided with a chain wheel and is connected with a chain wheel of the fixed shaft end of the air knife 212 through a chain; the other end of the air knife 212 is movably connected with an air duct 213 through a pipe sleeve thread, and the air duct 213 is fixed on the side wall of the other side of the drying oven 2; the motor II 211 drives the air knife 212 to rotate so as to adjust the wind direction of the air inlet and avoid the protection film from being atrophic by direct blowing of hot air.
The wind pressure regulating mechanism 22 is fixed in the air duct 213; the wind pressure regulating mechanism 22 comprises a cylinder II 221, a support frame II 222, a rolling shaft I223, a connecting arm I224 and a connecting arm II 225; the cylinder II 221 is fixed on the drying furnace path 2; two ends of the support II 222 are fixedly connected with the inner wall of the air duct 213; the rolling shafts I223 penetrate through the supporting frame II 222 and are uniformly distributed, and the rolling shafts I223 are provided with baffles I2231; the shaft end of the cylinder II 221 is movably connected with one end of the connecting arm I224; one end of the connecting arm II 225 is movably connected with the other end of the connecting arm I224, and the other end of the connecting arm II 225 is fixedly connected with the rolling shaft I223; the connecting arm I224 is driven to move up and down through the air cylinder II 221, so that the roller I223 is driven to rotate, and the air inlet pressure and the air speed are adjusted through the opening and closing of the air channel 213 by the baffle I2231; thereby achieving the effect of controlling the temperature.
The auxiliary transmission mechanism 23 comprises a motor III 231, a power roller 232, a pressure roller 233, a spring I234, a bolt 235, a fixed seat 236, a fixed block II 237 and a connecting seat 238; the motor III 231 is fixed on the outer wall of the drying furnace channel 2, and a chain wheel is arranged at the shaft end of the motor III 231; two ends of the power roller 232 are fixed on the drying furnace 2 through fixing seats, and one end of the power roller is provided with a chain wheel which is connected with a chain wheel at the end of the shaft of the motor III 231 through a chain; the fixed block II 237 is fixed at the bottom of the fixed seat 236; the bolt 235 is sleeved with the spring I234 and penetrates through the fixed block II 237 and the connecting seat 238, and the spring I234 is positioned between the connecting seat 238 and the fixed block II 237; the two ends of the pressure-bearing roller 233 are movably connected with the connecting seat 238 through a fixed shaft; the power roller 232 is driven to rotate by the power provided by the motor III 231; the pressure-bearing roller 233 is pressed by the pressure-bearing roller 233 and the power roller 232 in a fitting way through the elasticity of the spring I234, and when the protective film passes through the space between the power roller 232 and the pressure-bearing roller 233, the protective film is driven to drive; the elasticity of the spring I234 can be adjusted through rotating the bolt 235 so as to adjust the elastic variable of the pressure-bearing roller 233 and the extrusion force between the power roller 232 and the pressure-bearing roller 233 to meet the transmission effect.
The air duct switching mechanism 3 comprises a diversion bin 31 and a control mechanism 32; one side of the diversion bin 31 is connected with two air inlet pipelines, and the top of the diversion bin 31 is provided with a control mechanism 32; the control mechanism 32 comprises a roller II 321, a cylinder III 322, a toothed plate I323 and a guide rail I324; one end of the rolling shaft II 321 is inserted into the diversion bin 31 and provided with a baffle II 3211, and the other side is provided with a gear; the cylinder III 322 is fixed on the outer wall of the top of the guide cabin 31, and the guide rail I324 is fixed at the other end of the cylinder III 322; the toothed plate I323 is fixed in the guide rail I324 and meshed with the gear; the end of the shaft of the cylinder III 322 is fixedly connected with one end of the toothed plate I323; the toothed plate I323 is pushed by the air cylinder III 322 to drive the rolling shaft II 321 to rotate so as to drive the baffle II 3211 to swing left and right, so that the switching effect of closing one pipeline and opening the other pipeline is achieved.
An air inlet pipeline and an air outlet pipeline at two ends of the desorption chamber I4 are respectively connected with an air channel switching mechanism 3; the desorption chamber I4 comprises a traction mechanism 41 and a desorption bin I42; the traction mechanism 41 comprises a traction track 411, a mounting seat 412, a chain block 413, a fixed block III 416, a connecting arm III 415 and a motor V414; the traction track 411 is provided with a toothed plate II 4111 and a guide rail; the bottom of the mounting seat 412 is provided with a pulley 4121, and the pulley 4121 is arranged in a guide rail on the traction rail 411; the chain block 413 is provided with a roller 4131 and a connecting bar 4132, the roller 4131 is arranged in a guide rail on the traction rail 411, the connecting bar 4132 is arranged at two ends of the chain block 413, and the chain blocks 413 are mutually connected through the connecting bar 4132 to form a chain; the motor V414 is fixed on the mounting seat 412, and the shaft end of the motor V414 is provided with a gear and meshed with the toothed plate II 4111; one end of the connecting arm III 415 is fixedly connected with the mounting seat 412, and the other end is fixedly connected with the chain block 413; the chain formed by the chain blocks 413 is driven to move along the guide rail and the toothed plate II 4111 by the power provided by the motor V414.
A sliding rail I421 and a traction rail 411 are arranged in the desorption bin I42; an outlet is arranged at one side of the desorption bin I42, and a sealing door 53 and an air cylinder VI 55 are arranged at the outlet; the top shaft end of the air cylinder VI 55 is fixedly connected with a sealing door 53; the air cylinder VI 55 drives the sealing door 53 to move up and down to close and open and close the outlet.
Two pairs of fixed blocks III 416 are arranged at one end of the traction track 411 and are connected with each other through a connecting arm IV 436; the fixed block III 416 is connected with the chain block 413 through a connecting strip 4132; the fixed block III 416 is provided with a clamp claw I43; the clamp claw I43 comprises a cylinder V431, a connecting arm V432, a guide rail II 433, a clamp plate 434, a gear 435 and a connecting arm IV 436; the cylinder V431 is fixed on a pair of fixing blocks III 416, the guide rail II 433 is fixed on the other fixing block III 416, and meanwhile, a fixed shaft is arranged on the gear 435 and is fixed on one side of the guide rail II 433 through the fixed shaft; the clamp plate 434 is arranged in the guide rail II 433, and teeth are arranged on the clamp plate 434 and meshed with the gear 435; one end of the connecting arm V432 is movably connected with the top shaft end of the cylinder V431 through a pin shaft, and the other end of the connecting arm V432 is fixedly connected with a fixed shaft on the gear 435; the gripping action is completed by pushing out or recovering the pushing shaft through the cylinder V431 to drive the clamp plate 434 to move back and forth along the guide rail II 433.
The desorption bin I42 is provided with a movable connection mechanism 44 on one side, and the movable connection mechanism comprises a motor IV 441, a connection block 442, a guide shaft 443, a switching traction track 444 and a screw rod VI 445; the motor IV 441 is fixed on the outer wall of the desorption bin I42, and the shaft end is provided with a bevel gear; the two ends of the guide shaft 443 and the screw rod VI 445 are fixed on the outer wall of the desorption bin I42 through a connecting block 442, and the shaft end of the screw rod VI 445 is provided with a bevel gear and is meshed with a bevel gear at the shaft end of the motor IV 441; a connecting plate is arranged on the transfer traction track 444, and a guide shaft 443 passes through the connecting plate; the motor IV 441 rotates the switching traction track 444 to move along the guide shaft 443 so as to continuously form a complete track by the traction track 411 outside the desorption bin I42 and inside the desorption bin I42, so that the traction mechanism 41 can smoothly drag the activated carbon plate I15.
The adsorption chamber I5 comprises an adsorption bin I51, a sealing door 53, a sliding rail II 54, an air cylinder VI 55, a baffle I56 and a baffle II 57; an inlet and an outlet of the activated carbon plate I15 are formed in one side of the adsorption bin I51, a sealing door 53 and a cylinder VI 55 are arranged at the outlet, an ejection shaft of the cylinder VI 55 is fixedly connected with the sealing door, and the sealing door 53 is ejected or recovered through the cylinder VI 55 to drive the outlet to be closed and opened and closed; the baffle I56, the baffle II 57 and the slide rail II 54 are fixed in the adsorption bin I; the baffle I56 is positioned at the air inlet end of the adsorption chamber I5, and the baffle II 57 is positioned at the air outlet end of the adsorption chamber I5; the active carbon plate I15 is arranged in the slide rail II 54; the drying waste gas enters the adsorption chamber I5, is blocked by the blocking plates II 57 and I56, passes through the activated carbon plate I15 upwards and downwards to be adsorbed and then is discharged.
When the activated carbon plate I15 needs to be desorbed, the opening door is opened firstly; then the motor IV 441 provides power to drive the switching traction track 444 to slide along the guide shaft 443 to finish the connection of the traction track 411 inside and outside the desorption bin I42; then the traction mechanism 41 is driven by the motor V414 to push the clamp claw I43 to pass through the desorption chamber I4 along the traction track 411 to grasp the activated carbon plate I15, then the motor V414 reversely pulls the activated carbon plate I15 into the sliding rail I421 of the desorption chamber I4, and then the clamp claw I43 is loosened for recycling; the activated carbon plate I15 stays in the desorption chamber I4 to carry out high-temperature desorption.
The desorption chamber II 6 comprises a cover plate I61, an oil cylinder I62, an adjusting mechanism 63, a guide rail III 64 and a desorption bin II 65; one side of the cover plate I61 is connected with one side of the desorption bin II 65 through a rotating shaft; the oil cylinder I62 is fixed at two ends of the desorption bin II 65, and an ejection shaft of the oil cylinder I62 is connected with the cover plate I61 through a fixed seat; the opening and closing of the cover plate I61 are pushed by the oil cylinder I62; the guide rail III 64 is fixed on the inner wall of the desorption bin II 65 and is used for fixedly receiving the activated carbon plate II 16; the adjusting mechanism 63 is fixed on the outer wall of one side of the desorption bin II 65; the adjusting mechanism 63 comprises a fixed disk I631, a fixed disk II 632, a fixed disk III 633, a backing plate 634, a sleeve 635, a sliding block 636 and a locker 637; one end of the sleeve 635 is provided with a ball head 6351, and the fixed disc I631 is fixed on the fixed disc II 632 through bolts; the fixed disc III 633 is sleeved with the fixed disc II 632, and a ring-shaped T-shaped guide rail is formed between the fixed disc III 633 and the fixed disc II 632; the sliding block 636 is arranged in the annular T-shaped guide rail, and a locking bolt is arranged on the sliding block; one end of the locker 637 is movably connected with the top end of the pipe sleeve 635 through a pin shaft, and the other end of the locker is connected with the sliding block 636 through a pin shaft; the centers of the fixed disk I631, the fixed disk II 632 and the fixed disk III 633 form a movable space of the lasso ball head together; the central holes of the fixed disk I631 and the fixed disk III 633 are smaller than the diameter of the ball head 6351; the center hole of the fixed disk II 632 is larger than the diameter of the ball head 6351; the base plate 634 is positioned at the bottom of the fixed disk III 633, and the central hole of the base plate 634 is smaller than the diameter of the ball head 6351; fixing the fixing disc I631, the fixing disc II 632, the fixing disc III 633 and the backing plate 634 on the outer wall of the desorption bin II 65 through bolts; the steam line 638 passes through the shroud 635 into the desorption cartridge ii 65; the pipe sleeve 635 can randomly adjust the spraying direction of the steam pipe 638 by taking the ball head 6351 as a rotation center; and then locked by adjusting the locker 637 and the slider 636.
The adsorption chamber II 7 comprises an adsorption bin II 71, a cover plate II 72, an oil cylinder II 73 and a sliding rail III 74; one side of the cover plate II 72 is movably connected with one side of the adsorption bin II 71 through a rotating shaft; the oil cylinder II 73 is fixed on a side arm of the adsorption bin II 71, a top shaft of the oil cylinder II 73 is movably connected with the cover plate II 72 through a fixed block, and the opening and closing of the cover plate II 72 are controlled through ejection and recovery of the oil cylinder II 73; the slide rail III 74 is fixed on the inner wall of the adsorption bin II 71 and used for bearing the activated carbon plate II 16.
The loading and unloading mechanism 8 comprises a frame 81, a mounting rack I82 and a mounting rack II 83; the frame 81 is provided with a motor IV 811, a lead screw II 812 and a slide rail V813; the motor IV 811 is fixed at one end of the frame 81, and the shaft end is provided with a bevel gear; two ends of a screw rod II 812 are fixed on the frame 81 through fixing seats, and one end of the screw rod II is provided with a conical gear engaged with a conical gear at the shaft end of the motor IV 811; the mounting frame I82 comprises a mounting frame 821, a motor VI 822 and a screw III 823; the bottom of the fixed mount 821 is provided with a fixed block V8211 and a guide block, and the top is provided with a guide rail; the guide block is arranged in the sliding rail V813; a motor VI 822 is fixed at one end of the fixed frame 821, and a chain wheel is arranged at the shaft end of the motor VI 822; two ends of a screw rod III 823 are fixed on a fixed frame 821 through a fixed seat, and one end of the screw rod III 823 is provided with a chain wheel and is connected with a chain wheel at the shaft end of a motor VI 822 through a chain; the screw rod II 812 passes through the fixed block V8211, and the motor IV 811 drives the screw rod II 812 to rotate so as to drive the mounting frame I82 to move along the sliding rail V813.
The mounting frame II 83 comprises a fixing plate I831, a fixing plate II 832, a lead screw V833, a guide rod 834, a supporting arm 835, a fixing arm 836 and a clamp claw II 837; the bottom of the fixed plate I831 is provided with a sliding block and is arranged in a guide rail at the top of the fixed frame 821, and the top is provided with a fixed block; a motor I8321 is arranged on the fixed plate II 832, and a chain wheel is arranged at the shaft end of the motor I8321; one end of the lead screw V833 is provided with a chain wheel and is connected with a chain wheel at the shaft end of the motor I8321 through a chain; the top end of the lead screw V833 penetrates through the fixed plate II 832 and is locked and movably connected with the fixed plate II 832 through a locking cap, and the other end of the lead screw V833 is movably connected with the fixed plate II 832 through threads; one end of the guide rod 834 penetrates through the fixing plate I831 to be fixedly connected with the fixing plate II 832; the two ends of the fixed plate II 832 are provided with supporting arms 835; one end of the fixed arm 836 is movably connected with one end of the support arm 835 through a rotation shaft; the fixed arm 836 is provided with a jaw II 837; the fixed arm 836 can rotate with the rotation shaft as an axis to complete the grabbing actions of the clamp claw II 837 at different angles; the motor I8321 drives the lead screw V833 to rotate so as to drive the fixed plate II 832 and the clamp claw II 837 to move up and down; the screw rod III 823 penetrates through a fixed block at the top of the fixed plate I831; the screw rod III 823 is driven to rotate by the motor VI 822 so as to drive the fixed plate II 832 and the fixed plate I831 to move on the fixed frame 821; and the activated carbon plate II 16 is transferred from the adsorption chamber II 7 to the desorption chamber II 6 through the loading and unloading mechanism 8 for desorption.
The bottom of the guide rail III 64 is provided with a spring II 641 which plays a role in buffering when the activated carbon plate II 16 slides into the guide rail III 64.
A process for treating the drying waste gas of a protective film comprises the following steps:
1) Drying the protective film; introducing the purified waste gas into a drying furnace path through a draught fan to dry the protective film; the drying furnace path is divided into seven drying bins which are communicated with each other; a temperature sensor is arranged in each drying bin; the setting temperature ranges of the drying bin are 55-65 ℃, 65-75 ℃, 75-85 ℃, 85-95 ℃, 75-85 ℃, 65-75 ℃ and 55-65 ℃ respectively; the optimal temperature is 60 ℃, 70 ℃, 80 ℃, 90 ℃, 80 ℃, 70 ℃ and 60 ℃ respectively; the wind pressure control mechanism is used for controlling the wind quantity and the wind speed, when the temperature sensed by the temperature sensor is lower than the optimal temperature set value, the corresponding wind pressure control mechanism is used for opening the wind inlet of the wind channel, so that the wind speed and the wind quantity are improved to ensure the temperature to be stable;
2) The air duct switching mechanism changes the air duct to guide the waste gas; providing an activated carbon saturation signal by a VOC detection sensor, and then rapidly switching an air inlet pipeline by an air channel switching mechanism to use another group of adsorption systems;
3) Adsorption and desorption of waste gas; waste gas firstly enters an adsorption chamber I and is adsorbed by an active carbon plate, and then enters an adsorption chamber II and is adsorbed by the active carbon plate; after the air duct switching mechanism switches the adsorption system, the activated carbon plate in the adsorption chamber is transferred into the desorption chamber through the traction mechanism and the loading and unloading mechanism for desorption; the surface value of the activated carbon ratio is 1000-1200 square meters per gram, and the optimal value is 1150 square meters per gram; the adsorption chamber works for 36 hours and then carries out desorption treatment on the activated carbon plate; tables one and two are experimental test data;
4) Waste gas is recovered, and the absorbed waste gas is transmitted into a waste gas mixing and collecting box through a draught fan and a waste gas pipeline; then enters an RTO combustion furnace for combustion and oxidation; then discharging a part of purified gas reaching the emission standard, cooling by a heat exchanger, and discharging by a chimney;
5) Recycling purified gas; drawing a part of purified gas discharged through the chimney through a draught fan, and then exchanging heat through a circulating water heat exchanger to ensure that the temperature is below 120 ℃; then the mixture enters a drying furnace path to dry the protective film;
table one:
| activated carbon specific surface value square meter/g | Particle mg/m 3 | Non-methane total hydrocarbons mg/m 3 | |
| Example 1 | 900 | 11 | 52 |
| Example two | 1150 | 1.8 | 4.55 |
| Example III | 1200 | 9.8 | 52.5 |
| Example IV | 1250 | 11.5 | 53.2 |
And (II) table:
table 1 above performs the "Integrated emission Standard for atmospheric pollutants" (GB 16297-1996), fifth section of the emission Standard for volatile organic compounds: surface coating industry (DB 37/2801.5-2018) and regional atmospheric pollutant comprehensive emission Standard (DB 37/2376-2019).
The discharge of the first embodiment, the third embodiment and the fourth embodiment in the first table is found to exceed the standard through comparison; the non-methane total hydrocarbons in the first example of the second example exceed the standard, the particulates in the second example exceed the standard, and the particulates and non-methane total hydrocarbons in the third example exceed the standard.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. A protection film drying waste gas treatment device comprises a printing mechanism, a drying furnace channel, an air channel switching mechanism, a desorption chamber I, an adsorption chamber I, a desorption chamber II, an adsorption chamber II, a loading and unloading mechanism, a recovery pipeline, a heat exchange mechanism I, an RTO combustion chamber, a chimney, a transmission pipeline, a heat exchange mechanism II and a mixed air gas collecting box; the device is characterized in that the printing mechanism is positioned at one side of the drying furnace path, the air duct switching mechanism is positioned at the other side of the drying furnace path, the desorption chamber I and the adsorption chamber I are simultaneously positioned at one side of the air duct switching mechanism, and the desorption chamber II and the adsorption chamber II are positioned at one side of the desorption chamber I; the loading and unloading mechanism is positioned at the tops of the desorption chamber II and the adsorption chamber II, and one side of the desorption chamber II and one side of the adsorption chamber II are provided with an air channel switching mechanism; the recovery pipeline is connected with the air duct switching mechanism and the air mixing and collecting box;
the drying oven is provided with a wind direction adjusting mechanism, a wind pressure adjusting mechanism and an auxiliary transmission mechanism; the wind direction adjusting mechanism comprises a motor II, an air knife and an air duct; one end of the air knife is fixed on the side wall of the drying oven channel through a fixed shaft, a chain wheel is arranged on the fixed shaft, a pipe sleeve is arranged at the other end of the air knife, and threads are arranged on the pipe sleeve; the chain wheels on the air knives are connected through chains; the shaft end of the motor II is provided with a chain wheel and is connected with the chain wheel at the fixed shaft end of the air knife through a chain; the other end of the air knife is movably connected with an air channel through a pipe sleeve thread, and the air channel is fixed on the side wall of the other side of the drying furnace channel;
The wind pressure regulating mechanism is fixed in the air duct; the wind pressure regulating mechanism comprises a cylinder II, a support frame II, a rolling shaft I, a connecting arm I and a connecting arm II; the cylinder II is fixed on the drying furnace path; two ends of the support frame II are fixedly connected with the inner wall of the air duct; the rolling shafts I penetrate through the supporting frames II and are uniformly distributed, and baffle plates I are arranged on the rolling shafts I; the end of the air cylinder II is movably connected with one end of the connecting arm I; one end of the connecting arm II is movably connected with the other end of the connecting arm I, and the other end of the connecting arm II is fixedly connected with the rolling shaft I;
the auxiliary transmission mechanism comprises a motor III, a power roller, a pressure bearing roller, a spring I, a bolt, a fixed seat, a fixed block II and a connecting seat; the motor III is fixed on the outer wall of the drying furnace channel, and the shaft end of the motor III is provided with a chain wheel; two ends of the power roller are fixed on the drying furnace path through fixing seats, and one end of the power roller is provided with a chain wheel which is connected with a chain wheel at the end of the shaft of the motor III through a chain; the fixed block II is fixed at the bottom of the fixed seat; the bolt is sleeved with the spring I and penetrates through the fixed block II and the connecting seat, and the spring I is positioned between the connecting seat and the fixed block II; the two ends of the pressure-bearing roller are movably connected with the connecting seats through the fixed shafts;
the air duct switching mechanism comprises a diversion bin and a control mechanism; one side of the diversion bin is connected with two air inlet pipelines, and the top of the diversion bin is provided with a control mechanism; the control mechanism comprises a rolling shaft II, a cylinder III, a toothed plate I and a guide rail I; one end of the rolling shaft II is inserted into the diversion bin and provided with a baffle II, and the other side of the rolling shaft II is provided with a gear; the air cylinder III is fixed on the outer wall of the top of the diversion bin, and the guide rail I is fixed at the other end of the air cylinder III; the toothed plate I is fixed in the guide rail I and meshed with the gear; the end of the cylinder III is fixedly connected with one end of the toothed plate I;
The air inlet pipeline and the air outlet pipeline at two ends of the desorption chamber I are respectively connected with an air channel switching mechanism; the desorption chamber I comprises a traction mechanism and a desorption bin I; the traction mechanism comprises a traction track, a mounting seat, a chain block, a fixed block III, a connecting arm III and a motor V; the traction track is provided with a toothed plate II and a guide rail; the bottom of the mounting seat is provided with a pulley which is arranged in a guide rail on the traction rail; the chain block is provided with rollers and connecting strips, the rollers are arranged in guide rails on the traction rail, the connecting strips are arranged at two ends of the chain block, and the chain block is connected with each other through the connecting strips to form a chain; the motor V is fixed on the mounting seat, and a gear is arranged at the shaft end of the motor V and meshed with the toothed plate II; one end of the connecting arm III is fixedly connected with the mounting seat, and the other end of the connecting arm III is fixedly connected with the chain block;
a sliding rail I and a traction rail are arranged in the desorption bin I; an outlet is arranged at one side of the desorption bin I, and a sealing door and an air cylinder VI are arranged at the outlet; the top shaft end of the air cylinder VI is fixedly connected with a sealing door;
the desorption bin I is provided with a movable connection mechanism which comprises a motor IV, a connecting block, a guide shaft, a switching traction track and a screw rod VI; the motor IV is fixed on the outer wall of the desorption bin I, and the shaft end is provided with a bevel gear; the two ends of the guide shaft and the screw rod VI are fixed on the outer wall of the desorption bin I through connecting blocks, and the shaft end of the screw rod VI is provided with a conical gear and meshed with the conical gear at the shaft end of the motor IV; the transfer traction rail is provided with a connecting plate, and the guide shaft passes through the connecting plate;
The adsorption chamber I comprises an adsorption bin I, a sealing door, a sliding rail II, an air cylinder VI, a baffle I and a baffle II; an inlet and an outlet of the activated carbon plate I are formed in one side of the adsorption bin I, a sealing door and a cylinder VI are arranged at the outlet, an ejection shaft of the cylinder VI is fixedly connected with the sealing door, and the sealing door is driven to close and open and close the outlet by ejection or recovery of the cylinder VI; the baffle I, the baffle II and the sliding rail II are fixed in the adsorption bin I; the baffle I is positioned at the air inlet end of the adsorption chamber I, and the baffle II is positioned at the air outlet end of the adsorption chamber I; the active carbon plate I is arranged in the sliding rail II;
the desorption chamber II comprises a cover plate I, an oil cylinder I, an adjusting mechanism, a guide rail III and a desorption bin II; one side of the cover plate I is connected with one side of the desorption bin II through a rotating shaft; the oil cylinder I is fixed at two ends of the desorption bin II, and an ejection shaft of the oil cylinder I is connected with the cover plate I through a fixed seat; the guide rail III is fixed on the inner wall of the desorption bin II; the adjusting mechanism is fixed on the outer wall of one side of the desorption bin II; the adjusting mechanism comprises a fixed disc I, a fixed disc II, a fixed disc III, a base plate, a pipe sleeve, a sliding block and a locker; one end of the pipe sleeve is provided with a ball head, and the fixed disc I is fixed on the fixed disc II through a bolt; the fixed disc III is sleeved with the fixed disc II, and a ring-shaped T-shaped guide rail is formed between the fixed disc III and the fixed disc II; the sliding block is arranged in the annular T-shaped guide rail, and a locking bolt is arranged on the sliding block; one end of the locker is movably connected with the top end of the pipe sleeve through a pin shaft, and the other end of the locker is connected with the sliding block through a pin shaft; the steam pipeline passes through the pipe sleeve and enters a desorption bin II;
The adsorption chamber II comprises an adsorption bin II, a cover plate II, an oil cylinder II and a sliding rail III; one side of the cover plate II is movably connected with one side of the adsorption bin II through a rotating shaft; the oil cylinder II is fixed on a side arm of the adsorption bin II, and a top shaft of the oil cylinder II is movably connected with the cover plate II through a fixed block; the sliding rail III is fixed on the inner wall of the adsorption bin II and used for bearing the activated carbon plate II.
2. The protective film drying waste gas treatment device according to claim 1, wherein the printing mechanism comprises a support frame I, a connecting frame, a stand, a flattening roller, a support plate, a screw rod I and a sliding seat; the support frame I is fixedly connected with the stand through a connecting frame; the machine base carries a printing mechanism, and the protective film enters the printing mechanism for printing after being flattened by the flattening roller; the support plate is fixedly connected with the support frame I, a through groove is formed in the support plate, and the sliding seat is positioned in the through groove; the flattening roller is movably connected with the supporting plate; the flattening roller comprises a rubber sleeve, a supporting elastic sheet, a connecting seat, a connecting rod, a screw rod, a fixing sleeve I and a fixing sleeve II; two ends of the supporting elastic sheet are fixedly connected with the fixing sleeve II; the screw rod penetrates through the fixed sleeve II and is movably connected with each other through a bearing, and a reverse thread is arranged in the middle of the screw rod; the fixed sleeve I is movably connected with the screw rod through threads; the fixed sleeve I and the supporting spring plate are respectively provided with a connecting seat; the connecting rod is movably fixed on the sleeve I and the connecting seat on the supporting spring plate through a pin shaft; the rubber sleeve is sleeved with a supporting elastic sheet; and the fixed sleeve II is movably connected with the sliding seat.
3. The protective film drying waste gas treatment device according to claim 1, wherein one end of the traction track is provided with two pairs of fixed blocks III which are connected with each other through a connecting arm IV; the fixed block III is connected with the chain block through a connecting strip; the fixed block III is provided with a clamp claw I; the clamp claw I comprises a cylinder V, a connecting arm V, a guide rail II, a clamp plate, a gear and a connecting arm IV; the cylinder V is fixed on a pair of fixed blocks III, the guide rail II is fixed on the other fixed block III, and meanwhile, a fixed shaft is arranged on the gear and is fixed on one side of the guide rail II through the fixed shaft; the clamp plate is arranged in the guide rail II, and teeth are arranged on the clamp plate and meshed with the gears; one end of the connecting arm V is movably connected with the top shaft end of the cylinder V through a pin shaft, and the other end of the connecting arm V is fixedly connected with a fixed shaft on the gear.
4. The protective film drying exhaust treatment device according to claim 1, wherein the loading and unloading mechanism comprises a frame, a mounting rack I and a mounting rack II; the frame is provided with a motor IV, a lead screw II and a slide rail V; the motor IV is fixed at one end of the frame, and the shaft end is provided with a bevel gear; two ends of the screw rod II are fixed on the frame through a fixed seat, and one end of the screw rod II is provided with a conical gear which is meshed with a conical gear at the end of the motor IV shaft; the mounting frame I comprises a fixing frame, a motor VI and a screw rod III; the bottom of the fixing frame is provided with a fixing block V and a guide block, and the top of the fixing frame is provided with a guide rail; the guide block is arranged in the slide rail V; the motor VI is fixed at one end of the fixed frame, and the shaft end of the motor VI is provided with a chain wheel; two ends of the screw rod III are fixed on the fixing frame through fixing seats, and one end of the screw rod III is provided with a chain wheel and is connected with a chain wheel at the shaft end of the motor VI through a chain; the screw rod II passes through the fixed block V;
The mounting frame II comprises a fixing plate I, a fixing plate II, a lead screw V, a guide rod, a supporting arm and a fixing arm; the bottom of the fixed plate I is provided with a sliding block and is arranged in a guide rail at the top of the fixed frame, and the top of the fixed plate I is provided with a fixed block; a motor I is arranged on the fixed plate II, and a chain wheel is arranged at the shaft end of the motor I; one end of the lead screw V is provided with a chain wheel and is connected with a chain wheel at the end of the motor I shaft through a chain; the top end of the lead screw V penetrates through the fixed plate II and is locked and movably connected with the fixed plate II through a locking cap, and the other end of the lead screw V is movably connected with the fixed plate II through threads; one end of the guide rod penetrates through the fixing plate I and is fixedly connected with the fixing plate II; the two ends of the fixed plate II are provided with supporting arms; one end of the fixed arm is movably connected with one end of the supporting arm through a rotating shaft; the fixed arm is provided with a clamp claw II; the screw rod III passes through a fixed block at the top of the fixed plate I; the bottom of the guide rail III is provided with a spring II.
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| CN202010722181.4A CN111845058B (en) | 2020-07-24 | 2020-07-24 | Protective film drying waste gas treatment device and process thereof |
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| CN202010722181.4A CN111845058B (en) | 2020-07-24 | 2020-07-24 | Protective film drying waste gas treatment device and process thereof |
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| CN113144879A (en) * | 2021-04-23 | 2021-07-23 | 何静 | Flue gas desulfurization device |
| CN114950065B (en) * | 2022-06-14 | 2023-09-12 | 福建龙净环保股份有限公司 | Waste gas concentration adjusting device |
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| CN111845058A (en) | 2020-10-30 |
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