CN110725151A - Hot oil working medium drying cylinder - Google Patents
Hot oil working medium drying cylinder Download PDFInfo
- Publication number
- CN110725151A CN110725151A CN201910868523.0A CN201910868523A CN110725151A CN 110725151 A CN110725151 A CN 110725151A CN 201910868523 A CN201910868523 A CN 201910868523A CN 110725151 A CN110725151 A CN 110725151A
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- end cover
- sealing end
- heat conduction
- heat
- drying cylinder
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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
- D21F5/02—Drying on cylinders
-
- 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
- D21F5/02—Drying on cylinders
- D21F5/021—Construction of the cylinders
-
- 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
- D21F5/02—Drying on cylinders
- D21F5/022—Heating the cylinders
- D21F5/027—Heating the cylinders using a heat-transfer fluid between the heating means and the cylinder shell
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- Drying Of Solid Materials (AREA)
Abstract
The invention provides a hot oil working medium drying cylinder, which relates to the technical field of drying cylinders and heat conduction and mainly comprises a cylindrical cylinder, left and right sealing end covers, an end cover heat insulation layer, a rotary joint, and an inlet and outlet heat conduction oil pipe. The invention adopts industrial special mixed heat conducting oil as a heat carrier working medium, the heat conducting oil is heated by a heat conducting oil furnace station and then injected into a drying cylinder body, so that the cylinder surface of the drying cylinder reaches the required temperature, and wet objects tightly attached to the cylinder surface are dried to the required dryness; besides overcoming the disadvantages of steam working medium, the method also has the following advantages: firstly, heating is uniform and rapid, so that the working efficiency is improved; the structure is simple, automatic regulation and control are easy, and the flexibility is higher; thirdly, a drying cylinder and a heat conduction oil pipe are not required to be manufactured into a high-strength pressure container, and high-pressure explosion potential safety hazards are avoided; fourthly, the surface temperature of the drying cylinders can be quickly increased to more than 200 ℃, and the number of the drying cylinders and the number of groups of the drying cylinders are reduced, so that the investment of fixed capital is reduced.
Description
Technical Field
The invention relates to the technical field of drying cylinders and heat conduction, in particular to a hot oil working medium drying cylinder.
Background
At present, manufacturers who use drying cylinders to dry materials, such as paper mills and paperboard mills, mostly adopt steam as a heating medium, that is, the steam is introduced into the drying cylinders to reach a certain steam pressure, so that the cylinder surface reaches a certain temperature, and wet materials tightly attached to the cylinder surface are dried to the required dryness. The method has at least six defects, one of the defects is that a large-scale boiler steam-producing plant station and a conveying steam pipe network are required to be built, and all steam container devices are required to be made of high-pressure-resistant pressure container materials, so that the fixed investment is particularly huge and accounts for about 1/4 of the total investment; secondly, the floor area of a boiler plant and a steam conveying pipe network is large; thirdly, as the coal-fired or oil-fired or natural gas heating boiler is adopted to produce steam, the steam cannot be recycled, and the operation cost is higher; fourthly, the phenomena of heat loss during conveying, leakage and leakage are serious, and the potential safety hazard is large; fifthly, the saturated vapor pressure which is required to be used on site and has the temperature of 200 ℃ and more than 15.6MPa cannot be produced; sixth, encrustations which are difficult to remove are often generated in the boiler pipeline due to long-term work, and the use and heat exchange effects are seriously influenced.
At present, the design of the drying cylinder adopting heat conduction oil as a heating working medium is provided, but the drying cylinders of the heat conduction oil still have great defects, such as uneven heat transfer, low heat conduction efficiency, single transmission form, complex structure, great difficulty in manufacturing and installation and the like, and the heat inlet and outlet oil pipes of the drying cylinders of the heat conduction oil still need to be seamless steel pipes with high price and good heat transfer effect, so that the invention provides the drying cylinder of the hot oil working medium to solve the defects.
Disclosure of Invention
The invention aims to provide a hot oil working medium drying cylinder to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme: a hot oil working medium drying cylinder comprises a left sealing end cover; a rotary joint a; a rotary joint b; a heat inlet and conducting oil pipe; an end cover heat insulation layer; a right seal end cap; a manhole cover; go out heat conduction oil pipe and cylinder section of thick bamboo, its characterized in that:
the drying cylinder body comprises a cylindrical barrel, a left sealing end cover and a right sealing end cover, wherein the left sealing end cover and the right sealing end cover are symmetrically arranged at two ends of the cylindrical barrel, the left sealing end cover and the right sealing end cover are respectively fixed at the left side and the right side of the cylindrical barrel through bolts, reinforcing rings are respectively cast in the left side and the right side of the cylindrical barrel together, a rotary joint a is arranged at the middle axial position of the left sealing end cover, a rotary joint b is arranged at the middle axial position of the right sealing end cover, and a manhole cover is arranged on the right sealing;
the heat conduction oil pipe includes into heat conduction oil pipe and goes out heat conduction oil pipe, advances in heat conduction oil pipe and runs through and reach the dryer body from the outside axial of rotary joint a in, goes out heat conduction oil pipe and has two kinds of mounting means, and one of them mode is that it runs through and reach in the dryer body and pass the oil level perpendicularly and be close the cylinder section of thick bamboo inner wall and only apart from 1 ~ 3 cm's clearance from rotary joint b's outside axial, and another kind is that it sets up in same one side direction position with advancing heat conduction oil pipe together to go out heat conduction oil pipe.
Preferably, the drying cylinders are connected in parallel or in series by the heat-conducting oil inlet pipe and the heat-conducting oil outlet pipe to form a single-section or multi-section drying cylinder group for conveying heat-conducting oil in a concurrent or countercurrent mode.
Preferably, the left sealing end cover and the right sealing end cover can be arranged in one of a convex structure, a concave structure or a flat structure, and the outer side walls of the left sealing end cover and the right sealing end cover are both provided with end cover heat-insulating layers.
Preferably, the cylindrical barrel, the left sealing end cover and the right sealing end cover are all made of conventional steel materials.
Preferably, the heat-conducting oil pipe and the heat-conducting oil outlet pipe are both glass fiber reinforced plastic pipes.
The invention has the beneficial effects that:
in the invention, industrial special mixed heat conducting oil is used as a heat carrier working medium, and the temperature, the conveying flow, single-section or multi-section conveying, a concurrent or countercurrent mode and the like of the heat conducting oil are automatically controlled by a heat conducting oil furnace station. The heat conduction oil furnace station heats heat conduction oil, then the heat conduction oil is input into the drying cylinder body through the heat conduction oil inlet pipe, the drying cylinder body is heated, the heat conduction oil releasing heat energy returns to the heat conduction oil furnace station through the heat conduction oil outlet pipe to continue to carry heat, the circulation work is repeated in this way, the surface temperature of the drying cylinder body is always constant and consistent at a required value, and wet objects tightly attached to the cylinder surface are dried to a required dryness. The steam working medium heating device overcomes the defects of steam working media, and has the advantages that the heating is uniform and rapid, so that the working efficiency is improved; the structure is simple, automatic regulation and control are easy, and the flexibility is higher; thirdly, the drying cylinder body and the pipeline are not required to be manufactured into a high-strength pressure container, and potential safety hazards of high-pressure explosion are avoided; fourthly, the surface temperature of the drying cylinder can be quickly increased to more than 200 ℃, and the number of the drying cylinders and the number of groups of the drying cylinders are reduced, so that the investment of fixed capital is reduced; fifthly, the oil guide pipe only needs to select a common glass fiber reinforced plastic pipeline with enough strength; sixthly, the hot oil working medium can be recycled, the heat loss is small, and the energy-saving and environment-friendly functions are achieved.
Drawings
FIG. 1 is a side plan view of a hot oil working medium dryer of the present invention;
FIG. 2 is a cross-sectional view of the hot oil working medium drying cylinder with the heat transfer oil respectively entering and exiting from the left and right sides;
FIG. 3 is a cross-sectional view of a hot oil working medium drying cylinder with one single side entering and exiting heat transfer oil in the same direction;
reference numerals:
1. a left seal end cap; 2. a rotary joint a; 201. a rotary joint b; 3. a heat inlet and conducting oil pipe; 4. an end cover heat insulation layer; 5. a bolt; 6. a right seal end cap; 7. a manhole cover; 8. discharging a heat conduction oil pipe; 9. a cylindrical barrel; 901. a reinforcement ring; 10. and (5) oil level.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-2, a hot oil working medium drying cylinder comprises a left sealing end cover 1; rotary joint a 2; a rotary joint b 201; a heat inlet and conducting oil pipe 3; an end cover heat-insulating layer 4; a right sealing end cover 6; a manhole cover 7; the drying cylinder body comprises a cylinder barrel 9, a left sealing end cover 1 and a right sealing end cover 6 which are symmetrically arranged at two ends of the cylinder barrel 9, wherein the left sealing end cover 1 and the right sealing end cover 6 are respectively fixed at the left side and the right side of the cylinder barrel 9 through bolts 5, reinforcing rings 901 are respectively cast together in the left side and the right side of the cylinder barrel 9, a rotary joint a2 is arranged at the middle axial position of the left sealing end cover 1, a rotary joint b201 is arranged at the middle axial position of the right sealing end cover 6, and a manhole cover 7 is arranged on the right sealing end cover 6;
the heat conduction oil pipe includes into heat conduction oil pipe 3 and goes out heat conduction oil pipe 8, it runs through and is internal to reach the drying cylinder from the outside axial of rotary joint a2 to advance heat conduction oil pipe 3, it has two kinds of mounting means to go out heat conduction oil pipe 8, one of them mode is that it runs through and is internal to reach the drying cylinder from the outside axial of rotary joint b201 and pass perpendicularly in the oil level 10 is close to the cylinder 9 inner wall and only set up 1 ~ 3 cm's clearance apart from, another kind is that it sets up in same one side direction position with advancing heat conduction oil pipe 3 together to go out heat conduction oil pipe 8.
The left sealing end cover 1 and the right sealing end cover 6 can be arranged in one of a convex structure, a concave structure or a flat structure, and the outer side walls of the left sealing end cover 1 and the right sealing end cover 6 are both provided with an end cover heat preservation layer 4.
The working process is as follows: when a plurality of drying cylinders are required to be installed for work, according to the field use requirements of users, the drying cylinders can be connected in series to form a drying cylinder single group through the heat inlet and outlet oil pipes 3 and 8 on the outer sides, and the heat conducting oil is conveyed in a single-section concurrent flow or countercurrent mode.
Left side end cap 1 and right sealing end cap 6 can be according to the on-the-spot preparation of user and be protruding type structure, left side end cap 1 and right sealing end cap 6 outside all is provided with end cover heat preservation 4 in order to prevent the heat loss, a cylinder section of thick bamboo 9, left side end cap 1 and right sealing end cap 6 adopt general enough intensity and good steel material of heat conductivility can, need not to choose for use the pressure vessel material of high strength, it can only to advance heat pipe 3 and go out heat pipe 8 and only need select the glass steel pipeline of general enough intensity, need not to choose for use expensive high pressure resistant seamless steel pipe, also need not to consider its heat transfer effect.
When the drying cylinder works, the working mode of automatically controlling the temperature and the delivery flow of the heat-conducting oil and delivering the heat-conducting oil in a single-section forward-reverse flow or reverse flow mode is realized through a heat-conducting oil furnace station; the heat conduction oil furnace station heats heat conduction oil, then the heat conduction oil is input into the drying cylinder body through the heat conduction oil inlet pipe 3, the drying cylinder body is heated, the heat conduction oil releasing heat energy returns to the heat conduction oil furnace station through the heat conduction oil outlet pipe 8 to continue to carry heat, the circulation work is repeated in this way, the surface temperature of the drying cylinder body is always constant and consistent at a required value, and wet objects tightly attached to the surface of the drying cylinder body are dried to a required dryness.
Example 2
As shown in fig. 1-3, a hot oil working medium drying cylinder comprises a left sealing end cover 1; rotary joint a 2; a rotary joint b 201; a heat inlet and conducting oil pipe 3; an end cover heat-insulating layer 4; a right sealing end cover 6; a manhole cover 7; the drying cylinder body comprises a cylinder barrel 9, a left sealing end cover 1 and a right sealing end cover 6 which are symmetrically arranged at two ends of the cylinder barrel 9, wherein the left sealing end cover 1 and the right sealing end cover 6 are respectively fixed at the left side and the right side of the cylinder barrel 9 through bolts 5, reinforcing rings 901 are respectively cast together in the left side and the right side of the cylinder barrel 9, a rotary joint a2 is arranged at the middle axial position of the left sealing end cover 1, a rotary joint b201 is arranged at the middle axial position of the right sealing end cover 6, and a manhole cover 7 is arranged on the right sealing end cover 6;
the heat conduction oil pipe includes into heat conduction oil pipe 3 and goes out heat conduction oil pipe 8, it runs through and is internal to reach the drying cylinder from the outside axial of rotary joint a2 to advance heat conduction oil pipe 3, it has two kinds of mounting means to go out heat conduction oil pipe 8, one of them mode is that it runs through and is internal to reach the drying cylinder from the outside axial of rotary joint b201 and pass perpendicularly in the oil level 10 is close to the cylinder 9 inner wall and only set up 1 ~ 3 cm's clearance apart from, another kind is that it sets up in same one side direction position with advancing heat conduction oil pipe 3 together to go out heat conduction oil pipe 8.
The left sealing end cover 1 and the right sealing end cover 6 can be arranged in one of a convex structure, a concave structure or a flat structure, and the outer side walls of the left sealing end cover 1 and the right sealing end cover 6 are both provided with an end cover heat preservation layer 4.
The working process is as follows: when a plurality of drying cylinders are required to be installed for work, the drying cylinders can be connected in parallel into a plurality of drying cylinder groups through the heat conducting oil outlet pipe 8 and the heat conducting oil inlet pipe 3 on the outer side according to the field use requirements of users, and the heat conducting oil is conveyed in a multi-section concurrent or countercurrent mode.
The left sealing end cover 1 and the right sealing end cover 6 can be made into concave structures according to the on-site requirements of users, the end cover heat preservation layers 4 are arranged outside the left sealing end cover 1 and the right sealing end cover 6 to prevent heat loss, the cylindrical barrel 9, the left sealing end cover 1 and the right sealing end cover 6 are made of steel materials with general enough strength and good heat conduction performance, and high-strength pressure container materials do not need to be selected. The heat-conducting oil outlet pipe 8 and the heat-conducting oil inlet pipe 3 only need to select a common glass fiber reinforced plastic pipeline with enough strength, and expensive high-pressure-resistant seamless steel pipes do not need to be selected and the heat transfer effect does not need to be considered.
When the drying cylinder works, the temperature and the conveying flow of the heat-conducting oil are automatically controlled through a heat-conducting oil furnace station, and the working mode of multi-section cocurrent or countercurrent conveying of the heat-conducting oil is automatically controlled; the heat conduction oil furnace station heats heat conduction oil, then the heat conduction oil is input into the drying cylinder body through the heat conduction oil inlet pipe 3, the drying cylinder body is heated, the heat conduction oil releasing heat energy returns to the heat conduction oil furnace station through the heat conduction oil outlet pipe 8 to continue to carry heat, the circulation work is repeated in this way, the surface temperature of the drying cylinder body is always constant and consistent at a required value, and wet objects tightly attached to the surface of the drying cylinder body are dried to a required dryness.
Example 3
As shown in fig. 1-3, a hot oil working medium drying cylinder comprises a left sealing end cover 1; rotary joint a 2; a rotary joint b 201; a heat inlet and conducting oil pipe 3; an end cover heat-insulating layer 4; a right sealing end cover 6; a manhole cover 7; the drying cylinder body comprises a cylinder barrel 9, a left sealing end cover 1 and a right sealing end cover 6 which are symmetrically arranged at two ends of the cylinder barrel 9, wherein the left sealing end cover 1 and the right sealing end cover 6 are respectively fixed at the left side and the right side of the cylinder barrel 9 through bolts 5, reinforcing rings 901 are respectively cast together in the left side and the right side of the cylinder barrel 9, a rotary joint a2 is arranged at the middle axial position of the left sealing end cover 1, a rotary joint b201 is arranged at the middle axial position of the right sealing end cover 6, and a manhole cover 7 is arranged on the right sealing end cover 6;
the heat conduction oil pipe includes into heat conduction oil pipe 3 and goes out heat conduction oil pipe 8, it runs through and is internal to reach the drying cylinder from the outside axial of rotary joint a2 to advance heat conduction oil pipe 3, it has two kinds of mounting means to go out heat conduction oil pipe 8, one of them mode is that it runs through and is internal to reach the drying cylinder from the outside axial of rotary joint b201 and pass perpendicularly in the oil level 10 is close to the cylinder 9 inner wall and only set up 1 ~ 3 cm's clearance apart from, another kind is that it sets up in same one side direction position with advancing heat conduction oil pipe 3 together to go out heat conduction oil pipe 8.
The left sealing end cover 1 and the right sealing end cover 6 can be arranged in one of a convex structure, a concave structure or a flat structure, and the outer side walls of the left sealing end cover 1 and the right sealing end cover 6 are both provided with an end cover heat preservation layer 4.
When a plurality of drying cylinders are required to be installed for work, the drying cylinders can be connected in parallel or in series to form a multi-section or single-section drying cylinder group form through the heat inlet and outlet oil pipes 3 and 8 on the outer sides according to the field use requirements of users, and the heat conduction oil is conveyed in a concurrent or countercurrent mode.
The left sealing end cover 1 and the right sealing end cover 6 can be manufactured into flat plate structures according to the on-site requirements of users, and end cover heat preservation layers 4 are arranged outside the left sealing end cover 1 and the right sealing end cover 6 to prevent heat loss. The cylindrical barrel 9, the left sealing end cover 1 and the right sealing end cover 6 are made of steel materials with general enough strength and good heat conduction performance, and high-strength pressure container materials do not need to be selected. The heat-conducting oil inlet pipe 3 and the heat-conducting oil outlet pipe 8 only need to select common glass fiber reinforced plastic pipelines with enough strength, expensive high-pressure-resistant seamless steel pipes do not need to be selected, and the heat transfer effect of the seamless steel pipes does not need to be considered.
When the drying cylinder works, the temperature and the conveying flow of the heat-conducting oil are automatically controlled through a heat-conducting oil furnace station, and the working modes of single-section or multi-section, concurrent or countercurrent conveying of the heat-conducting oil and the like are automatically controlled. The heat conduction oil furnace station heats heat conduction oil, then the heat conduction oil is input into the drying cylinder body through the heat conduction oil inlet pipe 3, the drying cylinder body is heated, the heat conduction oil releasing heat energy returns to the heat conduction oil furnace station through the heat conduction oil outlet pipe 8 to continue to carry heat, the circulation work is repeated in this way, the surface temperature of the drying cylinder body is always constant and consistent at a required value, and wet objects tightly attached to the surface of the drying cylinder body are dried to a required dryness.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A hot oil working medium drying cylinder comprises a left sealing end cover (1); a rotary joint a (2); a rotary joint b (201); a heat inlet and conducting oil pipe (3); an end cover heat-insulating layer (4); a right sealing end cap (6); a manhole cover (7); go out heat conduction oil pipe (8) and cylinder section of thick bamboo (9), its characterized in that:
the drying cylinder body comprises a cylinder barrel (9), a left sealing end cover (1) and a right sealing end cover (6) which are symmetrically arranged at two ends of the cylinder barrel (9), wherein the left sealing end cover (1) and the right sealing end cover (6) are respectively fixed at the left side and the right side of the cylinder barrel (9) through bolts (5), reinforcing rings (901) are respectively cast in the left side and the right side of the cylinder barrel (9) together, a rotary joint a (2) is arranged at the middle axial position of the left sealing end cover (1), a rotary joint b (201) is arranged at the middle axial position of the right sealing end cover (6), and a manhole cover (7) is arranged on the right sealing end cover (6);
the heat conduction oil pipe includes into heat conduction oil pipe (3) and goes out heat conduction oil pipe (8), it runs through and in the through dryer from the outside axial of rotary joint a (2) to advance heat conduction oil pipe (3), it has two kinds of mounting means to go out heat conduction oil pipe (8), one of them mode is that it runs through and in the through dryer and pass perpendicularly oil face (10) and be close the cylinder section of thick bamboo (9) inner wall and only set up in same one side direction position with advancing heat conduction oil pipe (3) from the outside axial of rotary joint b (201) to go out heat conduction oil pipe (8), another mode is that it sets up in same one side direction position together with advancing heat conduction oil pipe (3) to go out heat conduction.
2. A hot oil working medium drying cylinder according to claim 1, characterized in that: the drying cylinders are connected in parallel or in series by the heat inlet and outlet oil pipes (3) and (8) to form a single-section or multi-section drying cylinder group for conveying heat conducting oil in a forward flow or reverse flow mode.
3. A hot oil working medium drying cylinder according to claim 1, characterized in that: the left sealing end cover (1) and the right sealing end cover (6) can be arranged in one of a convex structure, a concave structure or a flat structure, and end cover heat-insulating layers (4) are arranged on the outer side walls of the left sealing end cover (1) and the right sealing end cover (6).
4. A hot oil working medium drying cylinder according to claim 1, characterized in that: the cylindrical barrel (9), the left sealing end cover (1) and the right sealing end cover (6) are all made of conventional steel materials.
5. A hot oil working medium drying cylinder according to claim 1, characterized in that: and the heat-conducting oil inlet pipe (3) and the heat-conducting oil outlet pipe (8) are both glass fiber reinforced plastic pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868523.0A CN110725151A (en) | 2019-09-16 | 2019-09-16 | Hot oil working medium drying cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868523.0A CN110725151A (en) | 2019-09-16 | 2019-09-16 | Hot oil working medium drying cylinder |
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| CN110725151A true CN110725151A (en) | 2020-01-24 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030327A (en) * | 1998-02-06 | 2000-02-29 | Valmet Corporation | Coupling for the tending-side end of a roll in a paper machine or paper finishing machine |
| CN201704578U (en) * | 2010-04-27 | 2011-01-12 | 陈作耕 | Drying cylinder for paper making |
| CN102383330A (en) * | 2011-11-09 | 2012-03-21 | 山东鲁台集团枣庄市鲁都造纸机械有限公司 | Steel welding heat conducting oil drying cylinder |
| CN106676935A (en) * | 2015-11-05 | 2017-05-17 | 李�昊 | Conduction oil drying cylinder |
| CN108103825A (en) * | 2018-02-23 | 2018-06-01 | 张飞 | A kind of paper grade (stock) can ensure uniformly heated drying cylinder |
| CN109056404A (en) * | 2018-08-29 | 2018-12-21 | 齐鲁工业大学 | Go with each other all the time thermal-conducting oil drying cylinder |
-
2019
- 2019-09-16 CN CN201910868523.0A patent/CN110725151A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030327A (en) * | 1998-02-06 | 2000-02-29 | Valmet Corporation | Coupling for the tending-side end of a roll in a paper machine or paper finishing machine |
| CN201704578U (en) * | 2010-04-27 | 2011-01-12 | 陈作耕 | Drying cylinder for paper making |
| CN102383330A (en) * | 2011-11-09 | 2012-03-21 | 山东鲁台集团枣庄市鲁都造纸机械有限公司 | Steel welding heat conducting oil drying cylinder |
| CN106676935A (en) * | 2015-11-05 | 2017-05-17 | 李�昊 | Conduction oil drying cylinder |
| CN108103825A (en) * | 2018-02-23 | 2018-06-01 | 张飞 | A kind of paper grade (stock) can ensure uniformly heated drying cylinder |
| CN109056404A (en) * | 2018-08-29 | 2018-12-21 | 齐鲁工业大学 | Go with each other all the time thermal-conducting oil drying cylinder |
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Application publication date: 20200124 |
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