CN204982534U - Papermaking dry section's steam recovery system - Google Patents
Papermaking dry section's steam recovery system Download PDFInfo
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- CN204982534U CN204982534U CN201520511466.8U CN201520511466U CN204982534U CN 204982534 U CN204982534 U CN 204982534U CN 201520511466 U CN201520511466 U CN 201520511466U CN 204982534 U CN204982534 U CN 204982534U
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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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Abstract
The utility model relates to a paper technology field especially relates to papermaking dry section's steam recovery system, and its structure includes preceding stoving mechanism and back stoving mechanism, and preceding stoving mechanism and back stoving mechanism all include a plurality of group's dryers and drying device, and preceding stoving mechanism is provided with first hot -blast mouthful, and back stoving mechanism is provided with hot -blast mouthful of second, and the second passes through hot -blast main and first hot -blast mouthful intercommunication for hot -blast mouthful, is provided with the heat pump on the pipeline of hot -blast main. Compared with the prior art, the utility model discloses a steam reutilization has been realized to stoving steam, greatly reduced dry section's steam energy consumption, practiced thrift the energy to make the papermaking cost reduce.
Description
Technical field
The utility model relates to pulp technology for making paper, particularly relates to the vapor-recovery system in papermaking oven dry portion.
Background technology
Papermaking is big power consumer, and economizing on can be particularly important.Papermaking oven dry portion utilizes steam to be dried by page, and its steam economy is very large, and therefore, the steam consumption reducing oven dry portion is very crucial to control that is energy-conservation and cardboard cost.In prior art, the steam of drying part of paper making machine mainly adopts live steam, is respectively used to lead to steam and the hot aeration portion of vapour cover to drying cylinder, steam after oven dry directly discharges, cause the oven dry energy consumption of paper machine very high, make papermaking cost be difficult to decline, and waste is caused to the energy.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art and provides a kind of economize energy, steam is carried out to the vapor-recovery system in the papermaking oven dry portion of secondary utilization.
The purpose of this utility model is achieved through the following technical solutions:
The vapor-recovery system in papermaking oven dry portion is provided, comprise front drying mechanism and post-drying mechanism, described front drying mechanism and described post-drying mechanism include some groups of drying cylinders and drying unit, dry organization establishes before described and have the first hot-air mouth, described post-drying organization establishes has the second hot-air mouth, described second hot-air mouth is communicated with described first hot-air mouth by warm-air pipe, and the pipeline of described warm-air pipe is provided with heat pump.
Preferably, described vapor-recovery system also comprises waste-heat recovery device, waste-heat recovery device comprises heat exchanger, water storage tank and blower fan, the air inlet of described heat exchanger is communicated with the exhaust outlet of described front drying mechanism, the gas outlet of described heat exchanger is communicated with described blower fan, the water inlet of described heat exchanger is connected with cold water source, and the delivery port of described heat exchanger is communicated with described water storage tank.
Preferably, described heat exchanger is tubular heat exchanger.
Preferably, described some groups of drying cylinders are made up of the two-layer drying cylinder of upper and lower Heterogeneous Permutation respectively.
Preferably, described front drying mechanism and described post-drying mechanism are provided with temperature sensor.
the beneficial effects of the utility model:
The vapor-recovery system in papermaking oven dry portion of the present utility model, comprise front drying mechanism and post-drying mechanism, front drying mechanism and post-drying mechanism include some groups of drying cylinders and drying unit, front oven dry organization establishes has the first hot-air mouth, post-drying organization establishes has the second hot-air mouth, second hot-air mouth is communicated with the first hot-air mouth by warm-air pipe, and the pipeline of warm-air pipe is provided with heat pump.When paper web is dried, paper web is introduced into front drying mechanism and enters middle hyperthermia drying, then enter post-drying mechanism and carry out hyperthermia drying, because the bake out temperature of front drying mechanism is relatively low, steam after then drying mechanism oven dry is owing to still having higher temperature, this steam is delivered to front drying mechanism by heat pump and warm-air pipe and carries out secondary steam utilization, compared with the mode all adopting live steam to carry out drying with prior art, greatly reduce the steam energy consumption in oven dry portion, save the energy, and papermaking cost is minimized.
Accompanying drawing explanation
Utilize accompanying drawing to be described further the utility model, but the content in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is the structural representation of the vapor-recovery system in papermaking oven dry portion of the present utility model.
Reference numeral:
Front drying mechanism 1;
Post-drying mechanism 2;
Drying cylinder 3;
Warm-air pipe 4;
Heat pump 5;
Waste-heat recovery device 6, heat exchanger 61, water storage tank 62, blower fan 63.
Detailed description of the invention
With the following Examples and accompanying drawing the utility model is described in further detail.
The vapor-recovery system in papermaking oven dry portion of the present utility model, as shown in Figure 1, comprise front drying mechanism 1 and post-drying mechanism 2, front drying mechanism 1 and post-drying mechanism 2 include some groups of drying cylinders 3 and drying unit, front drying mechanism 1 is provided with the first hot-air mouth, post-drying mechanism 2 is provided with the second hot-air mouth, and the second hot-air mouth is communicated with the first hot-air mouth by warm-air pipe 4, the pipeline of warm-air pipe 4 is provided with heat pump 5.When paper web is dried, paper web is introduced into front drying mechanism 1 and enters middle hyperthermia drying, then enter post-drying mechanism 2 and carry out hyperthermia drying, because the bake out temperature of front drying mechanism 1 is relatively low, steam after then drying mechanism 2 oven dry is owing to still having higher temperature, this steam is delivered to front drying mechanism by heat pump 5 and warm-air pipe 4 and carries out secondary steam utilization, compared with the mode all adopting live steam to carry out drying with prior art, greatly reduce the steam energy consumption in oven dry portion, save the energy, and papermaking cost is minimized.
In the present embodiment, vapor-recovery system also comprises waste-heat recovery device 6, waste-heat recovery device 6 comprises heat exchanger 61, water storage tank 62 and blower fan 63, the air inlet of heat exchanger 61 is communicated with the exhaust outlet of front drying mechanism 1, the gas outlet of heat exchanger 61 is communicated with blower fan 63, the water inlet of heat exchanger 61 is connected with cold water source, and the delivery port of heat exchanger 61 is communicated with water storage tank 62.Waste hot steam after oven dry gives cool water heating by heat exchanger 61, waste gas after heating is discharged by blower fan 63, and the warm water after heating to be stored in water storage tank 62 for subsequent use, this warm water can be used for cleaning net or felt etc., with hot water cleaning net or felt, can clean cleaner.Thus, the waste hot steam after oven dry achieves the utilization again of heat energy by waste-heat recovery device 6, achieves energy-conservation object.
Concrete, heat exchanger 61 is tubular heat exchanger.
Concrete, some groups of drying cylinders 3 are made up of the two-layer drying cylinder 3 of upper and lower Heterogeneous Permutation respectively, to improve the drying effect of paper web.
Finally should be noted that; the restriction of above embodiment only for illustration of the technical solution of the utility model but not to the utility model protection domain; although be explained in detail the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (5)
1. the vapor-recovery system in papermaking oven dry portion, it is characterized in that: comprise front drying mechanism and post-drying mechanism, described front drying mechanism and described post-drying mechanism include some groups of drying cylinders and drying unit, dry organization establishes before described and have the first hot-air mouth, described post-drying organization establishes has the second hot-air mouth, described second hot-air mouth is communicated with described first hot-air mouth by warm-air pipe, and the pipeline of described warm-air pipe is provided with heat pump.
2. the vapor-recovery system in papermaking oven dry portion according to claim 1, it is characterized in that: described vapor-recovery system also comprises waste-heat recovery device, waste-heat recovery device comprises heat exchanger, water storage tank and blower fan, the air inlet of described heat exchanger is communicated with the exhaust outlet of described front drying mechanism, the gas outlet of described heat exchanger is communicated with described blower fan, the water inlet of described heat exchanger is connected with cold water source, and the delivery port of described heat exchanger is communicated with described water storage tank.
3. the vapor-recovery system in papermaking oven dry portion according to claim 2, is characterized in that: described heat exchanger is tubular heat exchanger.
4. the vapor-recovery system in papermaking oven dry portion according to claim 1, is characterized in that: described some groups of drying cylinders are made up of the two-layer drying cylinder of upper and lower Heterogeneous Permutation respectively.
5. the vapor-recovery system in papermaking oven dry portion according to claim 1, is characterized in that: described front drying mechanism and described post-drying mechanism are provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511466.8U CN204982534U (en) | 2015-07-15 | 2015-07-15 | Papermaking dry section's steam recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511466.8U CN204982534U (en) | 2015-07-15 | 2015-07-15 | Papermaking dry section's steam recovery system |
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| Publication Number | Publication Date |
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| CN204982534U true CN204982534U (en) | 2016-01-20 |
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| CN201520511466.8U Active CN204982534U (en) | 2015-07-15 | 2015-07-15 | Papermaking dry section's steam recovery system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951337A (en) * | 2016-06-24 | 2016-09-21 | 周祝清 | Drying device for filament sizing machine and drying method thereof |
| CN106436427A (en) * | 2016-11-18 | 2017-02-22 | 绥阳县双龙纸业有限公司 | Steam drying system for papermaking drying part |
| CN108252150A (en) * | 2016-12-29 | 2018-07-06 | 上海东冠纸业有限公司 | A kind of energy-saving system of paper-making drying cylinder |
| CN115976872A (en) * | 2022-12-20 | 2023-04-18 | 东莞顺裕纸业有限公司 | Waste heat recovery method for wet paper drying production line for papermaking from waste paper |
-
2015
- 2015-07-15 CN CN201520511466.8U patent/CN204982534U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951337A (en) * | 2016-06-24 | 2016-09-21 | 周祝清 | Drying device for filament sizing machine and drying method thereof |
| CN106436427A (en) * | 2016-11-18 | 2017-02-22 | 绥阳县双龙纸业有限公司 | Steam drying system for papermaking drying part |
| CN108252150A (en) * | 2016-12-29 | 2018-07-06 | 上海东冠纸业有限公司 | A kind of energy-saving system of paper-making drying cylinder |
| CN108252150B (en) * | 2016-12-29 | 2024-01-23 | 上海东冠纸业有限公司 | Energy-saving and consumption-reducing system of papermaking drying cylinder |
| CN115976872A (en) * | 2022-12-20 | 2023-04-18 | 东莞顺裕纸业有限公司 | Waste heat recovery method for wet paper drying production line for papermaking from waste paper |
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