CN114395936A - Hot air hood for paper machine and installation method thereof - Google Patents
Hot air hood for paper machine and installation method thereof Download PDFInfo
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- CN114395936A CN114395936A CN202210131618.6A CN202210131618A CN114395936A CN 114395936 A CN114395936 A CN 114395936A CN 202210131618 A CN202210131618 A CN 202210131618A CN 114395936 A CN114395936 A CN 114395936A
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- 238000000034 method Methods 0.000 title claims description 10
- 238000009434 installation Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000009833 condensation Methods 0.000 claims description 24
- 230000005494 condensation Effects 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/18—Drying webs by hot air
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/18—Drying webs by hot air
- D21F5/185—Supporting webs in hot air dryers
- D21F5/187—Supporting webs in hot air dryers by air jets
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
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Abstract
The invention relates to the field of paper machine equipment, and particularly discloses a hot air hood for a paper machine, which comprises a hood body and a condensing part, wherein a first pipe body and a second pipe body are respectively arranged in the condensing part, the first pipe body is connected with one end of a heat exchange pipe, one end of the second pipe body is connected with the other end of the heat exchange pipe, a water collecting tank is arranged at the bottom end of one side of the condensing part, and a drain pipe is connected to the bottom of the water collecting tank. S1, mounting and fixing the side plates at the bottom end of the cover body; s2, fixing the side plates on a mounting frame; s3, fixing condensing parts at two ends of the cover body; s4, the connecting pipe, the first air inlet pipe, the second shell, the first pipe body, the heat exchange pipe and the second pipe body are connected, the condensing part can condense water vapor into liquid and then the liquid flows into the water collecting tank, water generated by hot drying is collected, the influence of the water vapor on the papermaking production process is avoided, and the papermaking production quality is improved.
Description
Technical Field
The invention relates to the technical field of paper machine equipment, in particular to a hot air hood for a paper machine and an installation method thereof.
Background
The paper machine is a general name of a complete set of equipment which enables paper pulp to form paper webs in a linkage mode, and comprises a main machine such as a head box, a net part, a pressing part, a drying part, a calender, a paper winder and a transmission part and auxiliary systems such as steam, water, vacuum, lubrication, heat recovery and the like. The net part is a circular net or a fourdrinier net, the pressing part comprises a pressing roll, papermaking felt and the like, and the drying part comprises one or more drying cylinders. The hot air hood is arranged in the drying part, the air passage is distributed along the inner wall of the hot air hood shell in the hot air hood, and hot air is sprayed out through the spray head to realize drying. However, in the drying process, water is removed from paper to generate water vapor, the humidity of a workshop is increased, the influence of the increased water vapor on the papermaking of the household paper is very large, the normal curling and rewinding working sections of the household paper can be influenced, the paper breakage is more, the quality of finished products is reduced, and the water vapor generation is more serious when the speed of the paper machine is higher.
Disclosure of Invention
The invention aims to solve the problem that dried water vapor influences papermaking of household paper in the prior art, and provides a hot air hood for a paper machine and an installation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hot air hood for a paper machine comprises a hood body and condensation parts arranged at two ends of the hood body, wherein a first cavity is arranged in the hood body, a spray head communicated with the first cavity is arranged at the bottom end of the hood body, a first air inlet pipe communicated with the first cavity is arranged at the top end of the hood body, a first shell is arranged on the first air inlet pipe, a second cavity is arranged in the first shell, a heat exchange pipe is arranged on the inner wall of the second cavity, the condensation parts are made of metal materials, a third cavity is arranged in the condensation parts, heat conducting liquid is arranged in the third cavity, a first pipe body and a second pipe body are respectively arranged at the top end of the third cavity, the first pipe body is connected with one end of the heat exchange pipe, one end of the second pipe body is connected with the other end of the heat exchange pipe, and a water collecting tank is arranged at the bottom end of one side, close to the hood body, of the condensation parts, the bottom of the water collecting tank is connected with a drain pipe.
Preferably, the bottom ends of the two sides of the cover body are connected with side plates, and the side plates can be fixedly installed on the installation frame.
Preferably, the inner wall of the cover body is arc-shaped, the shape of the first cavity is consistent with that of the inner wall of the cover body, the number of the first cavities is multiple, and the first cavities are uniformly distributed along the length direction of the cover body.
Preferably, the number of the spray heads is multiple, and the multiple spray heads are uniformly distributed along the width direction of the cover body.
Preferably, a second shell is arranged at the top end of the cover body, and a heating device is arranged in the second shell.
Preferably, the top of the cover body is provided with a first air inlet pipe, the number of the first air inlet pipes is the same as that of the first cavities, each first air inlet pipe corresponds to one first cavity, the top end of each first air inlet pipe is connected with a connecting pipe, and one end of each connecting pipe is communicated with the inside of the corresponding second shell.
Preferably, the first casing sets up the top of second casing, the bottom of second cavity with the inside intercommunication of second casing, the top of first casing is provided with the second intake pipe, the one end of second intake pipe is connected with the inlet pipe.
Preferably, one end of the first pipe is located at the top end of the condensation portion, one end of the second pipe is located at the bottom end of the condensation portion, and the heat-conducting liquid in the third chamber flows from the second pipe to the first pipe.
Preferably, the top end of the cover body is provided with a first connecting piece, one side of the first connecting piece is provided with a mounting hole, the top end of the first connecting piece is provided with a first fixing hole, the top end of the condensation portion is provided with a second connecting piece capable of being inserted into the mounting hole, the top end of the second connecting piece is provided with a second fixing hole, and the first fixing hole and the second fixing hole are internally connected with a fixing bolt.
The invention also provides a method for installing the hot wind hood for the paper machine, which comprises the following steps:
s1, after selecting the side plate with the corresponding height, mounting and fixing the side plate at the bottom end of the cover body;
s2, fixing the side plates on a mounting frame;
s3, inserting the second connecting piece on the condensing part into the first connecting piece at the top end of the cover body, and installing and fixing the condensing part at two ends of the cover body;
s4, connecting one end of a connecting pipe with a first air inlet pipe, connecting the other end of the connecting pipe with a second shell, connecting one end of a first pipe body with one end of a heat exchange pipe, connecting one end of a second pipe body with the other end of the heat exchange pipe, and connecting one end of a drain pipe with a collecting container.
The invention has the beneficial effects that:
1. in the process of drying the finished paper by hot air, the steam with heat meets the condensing parts at the two ends of the cover body and then transfers the heat into the heat-conducting liquid, the steam can be condensed into liquid and flows into the water collecting tank, the water generated by hot drying is collected, the normal humidity in a workshop is kept, the influence of the steam on the production process of paper making is avoided, and the quality of the paper making is improved.
2. After the heat-conducting liquid absorbs the heat of the water vapor at the top end of the cover body, the heat can be transferred into the heat exchange tube in the first shell to preheat the gas to enter the second shell, so that the heat energy in the drying process is effectively utilized, and the energy consumption of the heating device is reduced.
Drawings
FIG. 1 is a perspective view of a hot air hood for a papermaking machine according to the present invention;
FIG. 2 is a perspective view of a hot air hood for the papermaking machine of FIG. 1 from another perspective;
FIG. 3 is a top plan view of a hot air hood for the papermaking machine shown in FIG. 1;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken at B-B of FIG. 3;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 3;
fig. 7 is a block diagram of a method of installing a hot air hood for a paper machine according to the present invention.
In the figure: the heat exchange device comprises a side plate 1, a cover body 2, a first cavity 21, a first air inlet pipe 3, a connecting pipe 4, a second shell 5, a second air inlet pipe 6, a first shell 7, a second cavity 71, a second pipe 8, a first connecting piece 9, a first pipe 10, a spray head 11, a drain pipe 12, a condensation part 13, a second connecting piece 131, a third cavity 132, a water collecting tank 14, a heating device 15 and a heat exchange pipe 16.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, a hot air hood for a paper machine includes a hood body 2 and condensation portions 13 disposed at two ends of the hood body 2, a first cavity 21 is disposed in the hood body 2, a nozzle 11 communicated with the first cavity 21 is disposed at a bottom end of the hood body 2, a first air inlet pipe 3 communicated with the first cavity 21 is disposed at a top end of the hood body 2, a first shell 7 is disposed on the first air inlet pipe 3, a second cavity 71 is disposed in the first shell 7, a heat exchange pipe 16 is disposed on an inner wall of the second cavity 71, the condensation portion 13 is made of a metal material, in this embodiment, the condensation portion 13 is made of an aluminum alloy, a third cavity 132 is disposed in the condensation portion 13, a heat conducting liquid is disposed in the third cavity 132, in this embodiment, the heat conducting liquid is heat conducting oil, and a first pipe 10 and a second pipe 8 are disposed at a top end of the third cavity 132, the first pipe body 10 is connected with one end of the heat exchange pipe 16, one end of the second pipe body 8 is connected with the other end of the heat exchange pipe 16, the condensing part 13 is close to the bottom end of one side of the cover body 2 and is provided with a water collecting tank 14, and the bottom of the water collecting tank 14 is connected with a drain pipe 12. Shower nozzle 11 and steam connection on the hot-blast gas cover for 11 spouts can be followed to steam, steam circulates in the cover body 2, can carry out drying process to the finished product paper, evaporate moisture from the finished product paper in, have thermal vapor meet cover body 2 both ends behind the condensation portion 13 in with heat transfer to heat-conducting liquid, wall flow to the water catch bowl 14 behind the liquid is become to the vapor condensation simultaneously in, heat-conducting liquid can preheat the gas in the first casing 7, reduce the energy loss who forms steam.
The both sides bottom of the cover body 2 is connected with curb plate 1, curb plate 1 is used for with mounting bracket (not shown) installation fixed, adopt the bolt joint fixed between curb plate 1 and the mounting bracket, curb plate 1's setting can adjust the volume that cover body 2 assembles steam, curb plate 1's height is higher, the steam of gathering in the cover body 2 is more, the hot gas circulation is more abundant and even in the cover body 2, it needs to notice, after curb plate 1's height is too high, in order to guarantee the temperature in the cover body 2, energy loss is also more, in this embodiment, curb plate 1's height is 1-1.5 meters. The inner wall of the cover body 2 is arc-shaped, so that the resistance to the circulation of hot air in the cover body 2 can be reduced, and the hot air can be circulated fully and uniformly. The shape of the first cavity 21 is an arc shape consistent with the shape of the inner wall of the cover 2, the number of the first cavities 21 is multiple, and the multiple first cavities 21 are uniformly distributed along the length direction of the cover 2, in this embodiment, the number of the first cavities 21 is 13, it can be understood that in other embodiments, which are not shown, the number of the first cavities 21 may be set to be other numbers according to the length of the cover 2. The number of the nozzles 11 is plural, and the plural nozzles 11 are uniformly distributed along the width direction of the cover body 2, in this embodiment, the number of the nozzles 11 is 11, it can be understood that in other embodiments not shown, the number of the nozzles 11 may be set to other numbers according to the width of the cover body 2.
The top of the cover body 2 is provided with a second shell 5, a heating device 15 is arranged in the second shell 5, and the heating device 15 is used for heating the gas entering the first cavity 21, so that the finished paper can be dried conveniently. The heating device 15 may be a conventional heating device, in this embodiment, the heating device 15 is a resistance wire heater, and in other embodiments not shown, the heating device 15 may also be a boiler. The top of the cover body 2 is provided with first intake pipe 3, the quantity of first intake pipe 3 with first cavity 21's quantity is the same, and every first intake pipe 3 corresponds a first cavity 21, and first intake pipe 3 is arranged in leading-in the first cavity 21 that corresponds with steam, and the top of first intake pipe 3 is connected with connecting pipe 4, the one end of connecting pipe 4 with the inside intercommunication of second casing 5 for steam after heating through heating device 15 heats lets in the first cavity 21, and finally passes through shower nozzle 11 outputs. First casing 7 sets up the top of second casing 5, the bottom of second cavity 71 with the inside intercommunication of second casing 5, the top of first casing 7 is provided with second intake pipe 6, and the one end of second intake pipe 6 is connected with the inlet pipe (not shown), and second intake pipe 6 is used for leading-in through pipeline pressure with the gas in the inlet pipe.
The second cavity 71 is cylindrical, and the heat exchange tube 16 is arranged around the inner wall of the second cavity 71. It should be noted that a pump body is disposed at one end of the heat exchange tube 16, and the pump body enables the heat exchange tube 16 and the heat conducting liquid in the first tube 10, the second tube 8 and the third cavity 132 connected to the heat exchange tube 16 to flow, so as to enable the heat conducting liquid in the third cavity 132, which absorbs heat in the cover 2, to flow into the first housing 7, and preheat the gas to be heated in the second housing 5 by the heating device 15. It should be noted that the height of the first casing 7 is 50-150 cm, if the height of the first casing 7 is too low, the gas cannot be effectively preheated after passing through the first casing 7, and if the height of the first casing 7 is too high, on one hand, the gas has heat loss after being heated, and the preheating effect is not good, on the other hand, the contact area between the first casing 7 and the outside is increased, and the heat loss is increased.
It is worth noting that the side wall of the condensation portion 13 and the outer wall of the end far away from the cover body 2 are wrapped with heat insulation materials, and the outer walls of the first pipe body 10, the second pipe body 8 and the first shell 7 are wrapped with heat insulation materials. A
One end of the first pipe 10 is located at the top end of the condensation portion 13, one end of the second pipe 8 is located at the bottom end of the condensation portion 13, and the heat transfer liquid in the third cavity 132 flows from the second pipe 8 to the first pipe 10.
The top of the cover body 2 is provided with a first connecting piece 9, one side of the first connecting piece 9 is provided with a mounting hole, the top of the first connecting piece 9 is provided with a first fixing hole, the top of the condensation part 13 is provided with a second connecting piece 131 capable of being inserted into the mounting hole, the top of the second connecting piece 131 is provided with a second fixing hole, and the first fixing hole and the second fixing hole are internally connected with a fixing bolt.
The invention also provides a method for installing the hot wind hood for the paper machine, which comprises the following steps:
s1, after the side plate 1 with the corresponding height is selected, the side plate 1 is installed and fixed at the bottom end of the cover body 2;
s2, fixing the side plate 1 on a mounting rack;
s3, inserting the second connecting piece 131 on the condensing part 13 into the first connecting piece 9 at the top end of the cover body 2, and installing and fixing the condensing part 13 at two ends of the cover body 2;
s4, connecting one end of the connecting pipe 4 with the first air inlet pipe 3, connecting the other end of the connecting pipe 4 with the second casing 5, connecting one end of the first pipe 10 with one end of the heat exchanging pipe 16, connecting one end of the second pipe 8 with the other end of the heat exchanging pipe 16, and connecting one end of the water discharging pipe 12 with the collecting container.
In this embodiment, after gas entered second intake pipe 6 through pipeline pressure, gas entered first casing 7, because the cover body 2 has not heated yet this moment, consequently first casing 7 still can not preheat gas, gas continues to flow to in the second casing 5, and heat through heating device 15 in the second casing 5 and form steam, steam passes through connecting pipe 4 and first intake pipe 3 and gets into in the first cavity 21 in the cover body 2, and spout through shower nozzle 11, steam flows in the bottom of the cover body 2, dry the finished product paper that is located the bottom of the cover body 2. At this moment, the hot air is partially gathered at the top end of the cover body 2, the water vapor dried and separated from the finished paper is gathered at the top end of the cover body 2 and then gradually moves towards the two ends of the cover body 2, when the water vapor meets the condensing part 13, the heat of the water vapor is transferred to the condensing part 13 with lower temperature, the water vapor is condensed on the surface of one end, close to the cover body 2, of the condensing part 13, the heat of the water vapor is transferred to the heat exchange liquid in the third cavity 132 of the condensing part 13, meanwhile, the water condensation wall dried out from the finished paper flows into the water collecting tank 14, and finally the water condensation wall is discharged from the water discharge pipe 12 and collected. After the pump body at one end of the heat exchange tube 16 works, the heat conducting liquid can flow, the heat conducting liquid in the third cavity 132 with heat is moved into the first shell 7, and the gas to enter the second shell 5 is preheated, so that the energy consumption of the heating device 15 is reduced.
In the process of drying finished paper by hot air, the steam with heat meets the condensing parts 13 at the two ends of the cover body 2 and then transfers the heat into the heat-conducting liquid, and the steam can be condensed into liquid and flows into the water collecting tank 14, so that the water generated by hot drying is collected, the normal humidity in a workshop is kept, the influence of the steam on the production process of paper making is avoided, and the quality of the paper making is improved. After absorbing the heat of the water vapor at the top end of the cover body 2, the heat-conducting liquid can transfer the heat into the heat exchange tube 16 in the first shell 7, preheat the gas to enter the second shell 5, effectively utilize the heat energy in the drying process and reduce the energy consumption of the heating device 15.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A hot air hood for a paper machine is characterized by comprising a hood body and condensation parts arranged at two ends of the hood body, wherein a first cavity is arranged in the hood body, a spray head communicated with the first cavity is arranged at the bottom end of the hood body, a first air inlet pipe communicated with the first cavity is arranged at the top end of the hood body, a first shell is arranged on the first air inlet pipe, a second cavity is arranged in the first shell, a heat exchange pipe is arranged on the inner wall of the second cavity, the condensation parts are made of metal materials, a third cavity is arranged in the condensation parts, heat conducting liquid is arranged in the third cavity, a first pipe body and a second pipe body are respectively arranged at the top end of the third cavity, the first pipe body is connected with one end of the heat exchange pipe, one end of the second pipe body is connected with the other end of the heat exchange pipe, and a water collecting tank is arranged at the bottom end of one side, close to the hood body, of the condensation parts, the bottom of the water collecting tank is connected with a drain pipe.
2. The hot air hood for the paper machine as claimed in claim 1, wherein the bottom ends of the two sides of the hood body are connected with side plates, and the side plates can be fixedly installed on the installation frame.
3. The hot air hood for the papermaking machine as claimed in claim 1, wherein the inner wall of the hood body is arc-shaped, the first cavities are arc-shaped and conform to the shape of the inner wall of the hood body, the number of the first cavities is plural, and the plural first cavities are uniformly distributed along the length direction of the hood body.
4. The hood according to claim 1, wherein the number of the nozzles is plural, and the plural nozzles are uniformly distributed in the width direction of the hood body.
5. The hood according to claim 1, wherein a second housing is provided at a top end of the hood body, and a heating device is provided in the second housing.
6. The hot air hood for the paper machine according to claim 5, wherein the top end of the hood body is provided with first air inlet pipes, the number of the first air inlet pipes is the same as that of the first cavities, each first air inlet pipe corresponds to one first cavity, the top end of each first air inlet pipe is connected with a connecting pipe, and one end of each connecting pipe is communicated with the inside of the second shell.
7. The hot air hood for the paper machine according to claim 5, wherein the first housing is disposed at the top end of the second housing, the bottom end of the second cavity is communicated with the inside of the second housing, a second air inlet pipe is disposed at the top end of the first housing, and one end of the second air inlet pipe is connected with a feeding pipe.
8. The hood according to claim 1, wherein one end of the first pipe is located at a top end of the condensing portion, one end of the second pipe is located at a bottom end of the condensing portion, and the heat transfer liquid in the third chamber flows from the second pipe to the first pipe.
9. The hot air hood for the paper machine according to claim 1, wherein a first connecting member is provided at a top end of the hood body, a mounting hole is provided at one side of the first connecting member, a first fixing hole is provided at a top end of the first connecting member, a second connecting member capable of being inserted into the mounting hole is provided at a top end of the condensing portion, a second fixing hole is provided at a top end of the second connecting member, and fixing bolts are connected to the first fixing hole and the second fixing hole.
10. A method of installing a hot blast hood for a paper machine according to any one of claims 1 to 9, comprising the steps of:
s1, after selecting the side plate with the corresponding height, mounting and fixing the side plate at the bottom end of the cover body;
s2, fixing the side plates on a mounting frame;
s3, inserting the second connecting piece on the condensing part into the first connecting piece at the top end of the cover body, and installing and fixing the condensing part at two ends of the cover body;
s4, connecting one end of a connecting pipe with a first air inlet pipe, connecting the other end of the connecting pipe with a second shell, connecting one end of a first pipe body with one end of a heat exchange pipe, connecting one end of a second pipe body with the other end of the heat exchange pipe, and connecting one end of a drain pipe with a collecting container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210131618.6A CN114395936B (en) | 2022-02-14 | 2022-02-14 | Hot air hood for paper machine and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210131618.6A CN114395936B (en) | 2022-02-14 | 2022-02-14 | Hot air hood for paper machine and installation method thereof |
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| CN114395936A true CN114395936A (en) | 2022-04-26 |
| CN114395936B CN114395936B (en) | 2024-03-15 |
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| CN207973940U (en) * | 2018-02-01 | 2018-10-16 | 遵义市播州区芶江镇鑫欣源包装材料有限责任公司 | Paper machine room condensation-preventing device |
| CN208668159U (en) * | 2018-06-29 | 2019-03-29 | 重庆理文卫生用纸制造有限公司 | A kind of energy-efficient toilet paper machine gas hood hot-air system |
| CN208668162U (en) * | 2018-06-29 | 2019-03-29 | 重庆理文卫生用纸制造有限公司 | A kind of energy-efficient paper machine steam gas hood recovery system |
| CN208981005U (en) * | 2018-10-24 | 2019-06-14 | 湖南三匠人科技有限公司 | A kind of paper web drying machine |
| CN209384016U (en) * | 2019-01-18 | 2019-09-13 | 潍坊杰高非织材料科技有限公司 | Drying cylinder air bells cap energy-saving equipment |
| CN210458763U (en) * | 2019-06-21 | 2020-05-05 | 江苏鑫辰逸机械设备有限公司 | Paper machine drying cylinder cover with heater |
| CN215329026U (en) * | 2021-03-25 | 2021-12-28 | 金凤凰纸业(孝感)有限公司 | Waste heat recovery utilizes device in gas hood |
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| CN114395936B (en) | 2024-03-15 |
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