CN109605934B - Waste heat recovery circulating system of printing machine - Google Patents
Waste heat recovery circulating system of printing machine Download PDFInfo
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- CN109605934B CN109605934B CN201811638369.XA CN201811638369A CN109605934B CN 109605934 B CN109605934 B CN 109605934B CN 201811638369 A CN201811638369 A CN 201811638369A CN 109605934 B CN109605934 B CN 109605934B
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of waste heat recovery, and discloses a waste heat recovery circulation system of a printing machine, which comprises a rack, wherein a printing drying box is arranged on the rack, a first air inlet and a first air outlet are formed in the printing drying box, a heat exchange cylinder for waste hot air to circulate is arranged on the rack, a stirring mechanism is arranged in the heat exchange cylinder, a second air inlet and a second air outlet are formed in the heat exchange cylinder, the first air outlet is communicated with the second air inlet, and the second air outlet is communicated with a waste gas treatment mechanism; the sleeve is sleeved on the heat exchange cylinder, a cavity for cold air to flow is formed between the sleeve and the heat exchange cylinder, the sleeve is provided with a third air inlet and a third air outlet, the third air inlet is communicated with a fan, the third air outlet is communicated with the first air inlet, and a heater is communicated between the third air outlet and the first air inlet. The waste heat recovery device realizes waste heat recovery by arranging the heat exchange cylinder and the sleeve, and reduces the harm of the discharged waste heat to the environment and human bodies by arranging the waste gas treatment mechanism to remove impurities and purify the waste heat.
Description
Technical Field
The invention relates to the technical field of waste heat recovery, in particular to a waste heat recovery circulation system of a printing machine.
Background
Printing is performed by making a plate, applying ink, and pressing an original such as a character, a picture, or a photograph to transfer the ink to the surface of a material such as paper, fabric, or leather. A printer is a machine that prints text and images. Different printing processes need a drying system to dry substances such as printing ink and the like on a printing stock in the printing process so as to achieve the effect of attractive appearance. In the printing and drying process, the printing machine heats up cold air through the heating device, hot air is conveyed into the drying oven by the fan to dry the printing stock, and waste gas is discharged out of the drying oven through the exhaust fan and continuously circulates between the hot air and the drying oven. In the process, a large amount of heat in the oven is discharged along with the exhaust air, so that a large amount of heat energy loss is caused.
Disclosure of Invention
The invention aims to provide a waste heat recovery circulation system of a printing machine, which aims to solve the problem of energy waste caused by the fact that a large amount of waste heat generated by the printing machine is not utilized in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the waste heat recovery circulating system of the printing machine comprises a rack, wherein a printing drying box is arranged on the rack, a first air inlet and a first air outlet are formed in the printing drying box, a heat exchange cylinder for waste heat to circulate is arranged on the rack, a stirring mechanism is arranged in the heat exchange cylinder, a second air inlet and a second air outlet are formed in the heat exchange cylinder, the first air outlet is communicated with the second air inlet, and the second air outlet is communicated with a waste gas treatment mechanism; the sleeve is sleeved on the heat exchange cylinder, a cavity for cold air to flow is formed between the sleeve and the heat exchange cylinder, the sleeve is provided with a third air inlet and a third air outlet, the third air inlet is communicated with a fan, the third air outlet is communicated with the first air inlet, and a heater is communicated between the third air outlet and the first air inlet.
Compared with the prior art, the invention has the following principle and beneficial effects:
1. the heat exchange cylinder and the sleeve are arranged, waste heat discharged from a first air outlet of the printing drying box enters the heat exchange cylinder, the fan supplies cold air to the cavity, the sleeve is sleeved on the heat exchange cylinder, the cavity is coated on the outer wall of the heat exchange cylinder, the waste heat and the cold air exchange heat through flowing, namely, the waste heat transfers heat to the cold air to heat the cold air, so that the temperature of the cold air is increased, and when the cold air is heated to a drying temperature through the heater, the consumed energy is reduced, the recycling of waste heat is realized, and the effect of saving energy is achieved; in addition, the waste heat gas does not contact with the cold air in the heat exchange process, so that the influence of impurities in the waste heat gas on the subsequent printing drying effect due to the pollution of the cold air can be avoided.
2. Set up rabbling mechanism, utilize rabbling mechanism to stir in the heat transfer section of thick bamboo, because the waste heat gas of heat transfer section of thick bamboo middle part is farthest away from the cavity, its and air conditioning heat exchange is slowest, and the stirring can break the steady flow of waste heat gas, makes whole waste heat gas can both carry out the heat exchange with air conditioning fast, improves the heat exchange rate, reaches the effect of biggest waste heat recovery.
3. Set up exhaust-gas treatment mechanism, because contain inflammable and explosive perishable gas such as ethyl acetate, toluene, xylol in the waste heat gas after the drying usually, if direct emission will cause very big harm to environment and human body, utilize exhaust-gas treatment mechanism to handle the waste heat gas of second gas outlet discharge from the heat transfer section of thick bamboo, reach the effect that the edulcoration purified, improve the environmental friendliness degree.
Furthermore, a plurality of baffle plates for limiting the flow of cold air are arranged on the inner wall of the sleeve.
Set up the baffler, can restrict the flow of air conditioning in the cavity, owing to blocking of group's baffle, increased the flow path of air conditioning in the cavity to the time that air conditioning stayed in the cavity has been prolonged, and then make air conditioning and exhaust heat can carry out abundant heat exchange, improved the heat exchange rate, thereby reach the effect of maximum waste heat recovery.
Further, the waste gas treatment mechanism comprises a reaction barrel filled with an organic solvent and an adsorption tank filled with an adsorbent, a first guide pipe is communicated between the second gas outlet and the reaction barrel, the first guide pipe extends into the organic solvent, a second guide pipe is communicated between the reaction barrel and the adsorption tank, and the second guide pipe is positioned above the liquid level of the organic solvent.
The waste hot gas discharged from the second gas outlet enters the reaction barrel, and the first conduit extends into the organic solvent, so the waste hot gas is fully contacted with the organic solvent after being discharged from the first conduit, and the waste hot gas contains flammable, explosive and corrosive gases such as ethyl acetate, toluene, xylene and the like which are all organic matters, so the waste hot gas can be dissolved in the organic solvent through the similar phase dissolving principle, air and the organic solvent are insoluble, the waste hot gas enters the adsorption box through the second conduit, and impurities and possibly residual gases such as ethyl acetate, toluene, xylene and the like are further removed through the action of the adsorbent; through the dual functions of dissolution and adsorption, the processing capacity of impurities in the waste hot gas is improved, so that impurities are effectively removed, and the harm of the waste hot gas to the environment and the human body is reduced.
Further, rabbling mechanism is equipped with stirring vane including rotating the pivot of connection in the heat exchanger section of thick bamboo in the pivot, be equipped with in the frame with the box of adsorption tank intercommunication, rotate in the box and be connected with the turbine with pivot coaxial coupling, be equipped with the exhaust hole on the box.
The waste heat gas after the adsorption tank edulcoration is in entering into the box, then discharges from the exhaust hole, and in-process waste heat gas forms lasting air current in the box, and this air current will regard as drive power drive turbine to rotate, and the turbine will drive the pivot and rotate, and the pivot will drive stirring vane and rotate, stirs in the heat transfer section of thick bamboo. The box body is arranged to utilize the discharged waste hot gas to be used as a driving force to drive and stir, no additional power source is needed to be arranged, and the effect of saving energy is achieved; the waste heat gas is purified by the waste gas treatment mechanism, impurities and flammable, explosive and corrosive gases such as ethyl acetate, toluene, xylene and the like are removed, and when the waste heat gas is used as a driving force, the waste heat gas cannot damage equipment; in addition, because stirring vane has certain volume and area, consequently can produce the effect of blockking to the flow of waste heat gas in the heat transfer section of thick bamboo in the stirring process, make the time of waste heat gas dwell in the heat transfer section of thick bamboo increase to make waste heat gas can carry out the heat exchange with cold air fully, thereby improve the heat exchange rate, be about to the heat furthest transmission of waste heat gas for cold air.
Further, a bent channel is arranged in the adsorption box.
The passage is arranged, so that the waste hot gas enters the passage after entering the adsorption box and does not directly contact with the adsorbent, and secondary pollution of impurities in the adsorbent to the waste hot gas is avoided; the bent channel can increase the travel of the waste heat gas in the adsorption box, so that the waste heat gas can fully stay with the adsorbent, and the adsorbent can more thoroughly remove the residual harmful gas in the waste heat gas.
Further, the sleeve is coated with an insulating layer.
The heat preservation layer is arranged, so that heat loss in the heat exchange process is reduced, the recovery efficiency of waste heat is improved to the maximum extent, and the effect of saving resources is achieved.
Drawings
FIG. 1 is a front view, partially in section, of an embodiment of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a printing drying box 1, a first air inlet 2, a first air outlet 3, a heat exchange cylinder 4, a rotating shaft 5, a stirring blade 6, a second air inlet 7, a second air outlet 8, a reaction barrel 9, an adsorption box 10, a first conduit 11, a second conduit 12, a box body 13, a turbine 14, an exhaust hole 15, a channel 16, a sleeve 17, a heat insulation layer 18, a cavity 19, a third air inlet 20, a third air outlet 21, a fan 22, a heater 23 and a baffle plate 24.
The embodiment is basically as shown in the attached figures 1 and 2:
printing machine waste heat recovery circulation system is equipped with printing drying cabinet 1 in the frame including the frame, is equipped with first air inlet 2 and first gas outlet 3 on the printing drying cabinet 1. The frame is provided with a heat exchange cylinder 4 for waste hot gas to circulate, the heat exchange cylinder 4 is rotatably connected with a rotating shaft 5, and the rotating shaft 5 is provided with a spiral stirring blade 6. A second air inlet 7 and a second air outlet 8 are arranged on the heat exchange cylinder 4, the first air outlet 3 is communicated with the second air inlet 7, and the second air outlet 8 is communicated with a waste gas treatment mechanism; the waste gas treatment mechanism comprises a reaction barrel 9 filled with an organic solvent and an adsorption box 10 filled with an adsorbent, wherein in the embodiment, the organic solvent is ethanol, and the adsorbent is activated carbon; a first conduit 11 is communicated between the second air outlet 8 and the reaction barrel 9, the first conduit 11 extends into the organic solvent and is close to the bottom of the reaction barrel 9, so that the waste heat gas flowing into the reaction barrel 9 from the first conduit 11 can be fully contacted with the organic solvent; a second conduit 12 is communicated between the reaction barrel 9 and the adsorption tank 10, the second conduit 12 is positioned above the liquid level of the organic solvent, and air which is insoluble in the organic solvent in the waste heat gas flows out of the reaction barrel 9 from the second conduit 12; a box body 13 communicated with the adsorption box 10 is fixedly connected to the rack, a turbine 14 coaxially connected with the rotating shaft 5 is rotatably connected to the box body 13, and an exhaust hole 15 is formed in the box body 13; the adsorption tank 10 is provided with a bent channel 16, the second conduit 12 is communicated with the channel 16, and when the waste heat gas flows out of the reaction barrel 9 and then enters the channel 16 to flow, the activated carbon in the adsorption tank 10 adsorbs impurities and residual harmful gases in the waste heat gas.
The sleeve 17 is sleeved on the heat exchange cylinder 4, the sleeve 17 is coated with the heat insulation layer 18, a cavity 19 for cold air to flow is formed between the sleeve 17 and the heat exchange cylinder 4, and the part of the heat exchange cylinder 4, which is in contact with the cavity 19, is made of a material with good heat conduction performance; a third air inlet 20 and a third air outlet 21 are arranged on the sleeve 17, the third air inlet 20 is arranged close to the second air outlet 8, and the third air outlet 21 is arranged close to the second air inlet 7, so that the waste heat gas and the cold air form reverse flow, and the heat exchange rate is improved to the maximum extent; the third air inlet 20 is communicated with a fan 22, the third air outlet 21 is communicated with the first air inlet 2, and a heater 23 is communicated between the third air outlet 21 and the first air inlet 2. A plurality of baffle plates 24 for limiting the flow of cold air are fixedly connected to the inner wall of the sleeve 17, and the baffle plates 24 are obliquely arranged from left to right.
In specific implementation, the waste heat in the printing and drying box 1 is discharged from the first air outlet 3, then enters the heat exchange cylinder 4 through the second air inlet 7, the fan 22 is started, the fan 22 provides cold air to the cavity 19, the cold air enters the cavity 19 from the third air inlet 20, the waste heat in the heat exchange cylinder 4 flows from left to right, the cold air in the cavity 19 flows from right to left, the waste heat and the cold air form relative flow, and the waste heat and the cold air can carry out geothermal exchange to the maximum extent, so that the heat exchange rate is improved; in-process baffler plate 24 will play to block, restriction effect to the flow of air conditioning, as in fig. 2, the arrow direction is the direction that air conditioning flows, baffler plate 24's setting, can prolong the stroke that air conditioning flowed in cavity 19 on the one hand, increase the time that air conditioning stayed in cavity 19, make air conditioning and exhaust gas can carry out abundant heat exchange, on the other hand make air conditioning can both contact with heat-transfer section of thick bamboo 4 wall low coverage ground, from making air conditioning fully heated, reach the effect of even heat exchange, further improve the heat exchange rate.
Through the heat exchange, cold air is heated, then is discharged from third gas outlet 21, when the heater 23, is heated to drying temperature by heater 23 again, then enters into printing drying cabinet 1 through first air inlet 2 and carries out the drying to the printed matter, because after the heat exchange, cold air has certain heat, when reusing heater 23 and heating to drying temperature, the energy of consuming will reduce, has realized the recovery cyclic utilization of waste heat, has reached energy saving's effect. The waste heat gas enters the reaction barrel 9 from the second gas outlet 8 through the first conduit 11, and fully contacts the organic solvent in the reaction barrel 9, so that flammable and explosive gases such as ethyl acetate, toluene and xylene contained in the waste heat gas are fully dissolved in the organic solvent, and the harmful gases (i.e. flammable and explosive gases such as ethyl acetate, toluene and xylene) contained in the waste heat gas are removed. Then, the waste heat gas enters the channel 16 through the second conduit 12, and in the process of flowing through the channel 16, the adsorbent in the adsorption tank 10 adsorbs and removes the organic solvent and the possible residual harmful gas in the waste heat gas, so as to achieve the effect of secondary purification and prevent the discharged waste heat gas from causing harm to the environment and human bodies.
The waste heat gas after the impurity removal of adsorption box 10 is through entering into box 13 in, then discharges from exhaust hole 15, and in-process waste heat gas will form the air current of continuous convection current in box 13, and this air current will regard as drive power drive turbine 14 to rotate, and turbine 14 will drive pivot 5 and rotate, and pivot 5 will drive stirring vane 6 and rotate, stirs in the heat transfer section of thick bamboo 4. On one hand, the stirring can break the stable flow of the waste heat gas, and the spiral stirring blades 6 are used for stirring to enable the waste heat gas to form turbulent flow, so that all the waste heat gas can be quickly and fully subjected to heat exchange with cold air, the heat exchange rate is improved, and the effect of maximum waste heat recovery is achieved; on the other hand, because stirring vane 6 has certain volume and area, consequently can produce the effect of blockking to the flow of waste heat gas in heat exchange tube 4 in stirring process, make the time of waste heat gas dwell in heat exchange tube 4 increase to make waste heat gas can carry out the heat exchange with cold air fully, and then improve the heat exchange rate, the heat of waste heat gas can transmit cold air for the at utmost promptly. Waste heat not only can be at heat transfer process with heat transfer for air conditioning, make air conditioning have certain heat before getting into heater 23, reduce the heating energy consumption, but also can regard as drive power, the drive stirring, further promote the heat exchange, played dual function, need not to set up external power source, can drive the stirring and improve the heat exchange, further improved the efficiency of heat exchange.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that variations and modifications can be made by those skilled in the art without departing from the structure of the present invention. These should also be construed as the scope of the present invention, and they should not be construed as affecting the effectiveness of the practice of the present invention or the applicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (4)
1. Printing machine waste heat recovery circulation system, including the frame, be equipped with the printing drying cabinet in the frame, its characterized in that: a first air inlet and a first air outlet are arranged on the printing drying box, a heat exchange cylinder for the circulation of waste heat is arranged on the frame, a stirring mechanism is arranged in the heat exchange cylinder, the stirring mechanism comprises a rotating shaft which is rotatably connected in a heat exchange cylinder, stirring blades are arranged on the rotating shaft, a second air inlet and a second air outlet are arranged on the heat exchange cylinder, the first air outlet is communicated with the second air inlet, the second air outlet is communicated with a waste gas treatment mechanism, the waste gas treatment mechanism comprises a reaction barrel filled with an organic solvent and an adsorption box filled with an adsorbent, a box body communicated with the adsorption box is arranged on the rack, a turbine coaxially connected with the rotating shaft is rotatably connected in the box body, an exhaust hole is arranged on the box body, a first guide pipe is communicated between the second air outlet and the reaction barrel, and the first guide pipe extends into the organic solvent, a second conduit is communicated between the reaction barrel and the adsorption tank and is positioned above the liquid level of the organic solvent; the sleeve is sleeved on the heat exchange cylinder, a cavity for cold air to flow is formed between the sleeve and the heat exchange cylinder, the sleeve is provided with a third air inlet and a third air outlet, the third air inlet is communicated with a fan, the third air outlet is communicated with the first air inlet, and a heater is communicated between the third air outlet and the first air inlet.
2. The printing press waste heat recovery cycle system of claim 1, wherein: the inner wall of the sleeve is provided with a plurality of baffle plates for limiting the flow of cold air.
3. The printing press waste heat recovery cycle system of claim 1, wherein: a bent channel is arranged in the adsorption box.
4. A printer waste heat recovery cycle system according to any one of claims 1 to 3, characterized in that: the sleeve is coated with a heat insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638369.XA CN109605934B (en) | 2018-12-29 | 2018-12-29 | Waste heat recovery circulating system of printing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638369.XA CN109605934B (en) | 2018-12-29 | 2018-12-29 | Waste heat recovery circulating system of printing machine |
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| CN109605934A CN109605934A (en) | 2019-04-12 |
| CN109605934B true CN109605934B (en) | 2020-12-29 |
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| CN111912243A (en) * | 2020-07-16 | 2020-11-10 | 上海颜钛实业有限公司 | Tail gas calcining device for titanium dioxide production and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103818112B (en) * | 2012-11-19 | 2016-08-24 | 江苏利特尔绿色包装股份有限公司 | Intaglio printing waste gas afterheat recovery system device and application process thereof |
| CN204774056U (en) * | 2015-07-21 | 2015-11-18 | 中山市朗科包装有限公司 | Printing machine waste heat recovery device |
| CN205326488U (en) * | 2015-12-16 | 2016-06-22 | 天津优信捷科技发展有限公司 | A waste gas waste heat recovery device for machine room |
| CN205517110U (en) * | 2016-02-01 | 2016-08-31 | 广东宏源达环保节能科技有限公司 | Print hot exhaust gas circulation system |
| CN106808796B (en) * | 2017-01-16 | 2019-02-26 | 广东芬尼克兹环保科技有限公司 | Waste gas treatment equipment, waste gas processing method and drying system |
| CN107757105A (en) * | 2017-10-25 | 2018-03-06 | 浙江伟博包装印刷品有限公司 | A kind of printing machine |
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