CN202945496U - Low temperature dryer for papermaking - Google Patents
Low temperature dryer for papermaking Download PDFInfo
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- CN202945496U CN202945496U CN 201220535765 CN201220535765U CN202945496U CN 202945496 U CN202945496 U CN 202945496U CN 201220535765 CN201220535765 CN 201220535765 CN 201220535765 U CN201220535765 U CN 201220535765U CN 202945496 U CN202945496 U CN 202945496U
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Abstract
The utility model discloses a low temperature dryer for papermaking. The low temperature dryer comprises a shell body, a transmission shaft, an operation shaft, a shaft steam inlet pipe and a shaft water outlet pipe. The shell body is composed of a barrel wall, a left cover plate and a right cover plate, wherein the left cover plate and the right cover plate are respectively arranged at the left end and the right end of the barrel wall. A shaft head connecting piece is arranged in the barrel wall between the left cover plate and the right cover plate. The transmission shaft and the operation shaft are arranged at two ends of the shaft head connecting piece which is connected with the barrel wall through a framework. A heat conducting cavity is arranged in the barrel wall. The inside of the heat conducting cavity is communicated with a steam distributing chamber arranged inside the barrel wall. Two ends of the heat conducting chamber are communicated with air collecting chambers arranged at two ends of the barrel wall. The steam distributing chamber is communicated with the shaft steam inlet pipe. The air collecting chambers are communicated with the shaft outlet pipe. The hole cavity structure is simple in structural design and calculation, few in used material, easy to manufacture, resistant to high pressure, little in quantity of used steam, and quick in temperature rising. Heat exchanger media can be hot water and hot oil.
Description
Technical field
The utility model belongs to the oven dry setting of paper industry, relates to specifically a kind of circular low temperature drying device.
Background technology
On paper industry, major diameter drying cylinder commonly used is Flying Dutchman and MG drying cylinder now, its title is only distinguished because of its different paper products of processing, its structural similarity generally is comprised of main parts size such as fore side spindle nose, cover plate, drying cylinder housing, transmission side spindle nose, central shaft, drainpipes.Heat exchange medium is water vapour, enters into central shaft by a side shaft footpath, then is covered with full cylinder from central shaft via steam jet.Therefore the main parts size of drying cylinder is all pressure parts.During work, drying cylinder inside is full of a large amount of high-temperature high-pressure steams.Just because of the characteristics of its specification, 26S Proteasome Structure and Function aspect, in case exist the large accident that occurs, will cause the possibility of considerable damage; Sometimes the non-major accident that just affects function also can cause the stopping production of several months, causes huge economic loss.So correct and scrupulous technical conditions, its serviceability of guarantee and security performance must be strictly followed in the design of major diameter drying cylinder, manufacturing and use.In work, drying cylinder is inner can produce a large amount of condensed waters, difference due to drying cylinder diameter, rotating speed and condensing capacity, there is different forms in condensed water in drying cylinder, drying cylinder is produced different impacts, when low velocity, condensed water is in pool of formation, drying cylinder bottom, when the medium speed, condensed water drops down with leaving casing wall after the housing rotary certain distance along rotation direction, causes the drying cylinder driving torque very unstable; When high speed, under the impact of centrifugal force, condensation film is rotated together with housing, be covered with whole drying cylinder inwall, heat must pass this moisture film and conduct heat, so heat transfer efficiency is low, and needs special drainage arrangement that condensed water is discharged from the opposite side diameter of axle through drainpipe.Heat exchange medium can not be used deep fat, and the surface area of the drying cylinder cover plates such as hot water is large, and more heat-energy losses is arranged during work.
Along with the continuous fast development of slim paper industry, for increasing the heated drying ability, strengthening mechanical dehydration and improve output, make drying cylinder towards larger diameter, larger width and more speed development.Based on the drying cylinder of said structure, in design, manufacturing and use procedure, be subject to the restriction of various factors.Can not adapt to the requirement of actual production.In design process, although adopt advanced " finite element " analytical technology, distributing from the true stress of drying cylinder under different loads (as pressure, temperature, line pressure and moment of torsion) comprehensive function in the reality use also has certain error; In manufacture process, the casting of major diameter housing and cover plate, processing all more difficult; The raw material that use also increase greatly, and about 200 tons of drying cylinder gross mass not only makes the basis of paper machine very huge, also needs larger transmission power, and probability and the also corresponding increase of the order of severity of major accident occur in using.
The utility model content
The purpose of this utility model just is to overcome above-mentioned deficiency a kind of low temperature drying device for papermaking is provided.
The purpose of this utility model can be achieved through the following technical solutions:
a kind of low temperature drying device for papermaking, comprise housing, power transmission shaft, operating axis, axle steam inlet pipe and axle outlet pipe, housing is by barrel and a left side, right cover plate consists of, housing is by barrel and be arranged on a barrel left side, the left side at right two ends, right cover plate consists of, be provided with the spindle nose connector in barrel between left cover plate and right cover plate, power transmission shaft and operating axis are arranged on the two ends of spindle nose connector, the spindle nose connector is connected with barrel by skeleton, be provided with heat transfer chamber in barrel, in the middle of heat transfer chamber with minute steam chest UNICOM that is arranged in the middle of barrel, two ends and the collection chamber UNICOM that is arranged on the barrel two ends, minute steam chest and axle steam inlet pipe UNICOM, collection chamber and axle drainpipe UNICOM.
Above-mentioned low temperature drying device for papermaking, described heat transfer chamber are the heat radiation chambeies that arranges in heating plate and heating plate on the barrel inwall, and a minute steam chest is established in the middle of establishing collection chamber in heat radiation two ends, chamber, divide steam chest and axle steam inlet pipe UNICOM, collection chamber and axle drainpipe UNICOM.
Above-mentioned low temperature drying device for papermaking, described barrel is spliced to form successively by several arc heating plates, heating plate is interlayer, interlayer internal cavity consist of to conduct heat heat radiation chamber, in the middle of cavity with minute steam chest UNICOM, two ends and collection chamber UNICOM.
Above-mentioned low temperature drying device for papermaking, described barrel is spliced to form successively by several arc heating plates, the heating plate inwall is provided with the chamber of dispelling the heat, the heat radiation chamber consists of heat transfer chamber, heat radiation two ends, chamber are provided with collection chamber, and the centre is provided with a minute steam chest, heat radiation chamber and collection chamber with divide steam chest UNICOM, minute steam chest and axle steam inlet pipe UNICOM, collection chamber axle outlet pipe UNICOM.
Above-mentioned low temperature drying device for papermaking, the axle steam inlet pipe that extend in barrel is connected with a minute steam chest by steam inlet pipe, and the axle outlet pipe that extend in barrel is connected with collection chamber by blast pipe.
Above-mentioned low temperature drying device for papermaking is provided with two circular arc bendings at least on described steam inlet pipe and blast pipe.Be used for reducing the stress that produces because of the caused distortion of expanding with heat and contract with cold,
Above-mentioned low temperature drying device for papermaking also is provided with thermal insulation layer on the inwall of heat transfer chamber, thermal insulation layer is made by heat-barrier material, and intercept heat is lost effectively all sidedly, significantly improves the utilization rate of heat.
Above-mentioned low temperature drying device for papermaking, filling with insulation material between axle steam inlet pipe, axle outlet pipe and spindle nose is provided with heat-barrier material between spindle nose connector and skeleton, all is arranged with thermal insulation layer outside sub-steam pipe, collecting pipe, steam inlet pipe and return tube, thermal insulation layer is made by heat-barrier material
Adopt technique scheme, the utility model has following advantage: the utility model is being made the cylindrical shell stage, cylindrical shell is divided into some deciles makes heating plate, split is made, material is the Q235# steel, assembly welding becomes whole cylindrical shell again, this structure Design and Calculation is simple, and materials are few, easily makes, high pressure resistant, heat exchange medium reaches cylinder surface by tubulation or vestibule or cavity in the heater on barrel or heating plate with heat, can increase substantially heat transfer efficiency, quick heating, reduce the consumption of steam or other heat exchange mediums, reduced production cost.Heat exchange medium can be that hot water, steam can also be deep fats.Be filled with heat-barrier material between axle steam inlet pipe, axle outlet pipe and power transmission shaft and operating axis, there is the outside of heat-barrier material, sub-steam pipe, collecting pipe, steam inlet pipe and return tube to be provided with thermal insulation layer between spindle nose contiguous block and skeleton, cylinder inboard wall is provided with thermal insulation layer, the thermal loss of omnibearing like this blocking-up, net quantity of heat only passes to drum surface by heating plate, significantly improves the utilization rate of heat.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to structural representation.
Fig. 3 is the structure for amplifying schematic diagram of Fig. 2 heating plate part.
The specific embodiment
as Fig. 1, Fig. 2, shown a kind of low temperature drying device for papermaking, comprise housing, power transmission shaft 2, operating axis 1, axle steam inlet pipe 5 and axle outlet pipe 6, housing is by barrel 7 and a left side, right cover plate 10, 11 consist of, housing is by barrel 7 and be arranged on a barrel left side, the left side at right two ends, right cover plate 10, 11 consist of, be provided with spindle nose connector 13 in barrel between left cover plate 10 and right cover plate 11, power transmission shaft 2 and operating axis 1 are arranged on the two ends of spindle nose connector 13, spindle nose connector 13 is connected with barrel 7 by skeleton 12, be provided with heat transfer chamber 14 in barrel 7, in the middle of heat transfer chamber 14 with minute steam chest 4 UNICOMs that are arranged in the middle of barrel, two ends and collection chamber 3 UNICOMs that are arranged on the barrel two ends, divide steam chest 4 and axle steam inlet pipe 5 UNICOMs, collection chamber 3 and axle drainpipe 6 UNICOMs, the axle steam inlet pipe 5 that extend in barrel is connected with a minute steam chest 4 by steam inlet pipe 8, the axle outlet pipe 6 that extend in barrel is connected with collection chamber 3 by blast pipe 9.
Heat transfer chamber of the present utility model can be the heat radiation chamber that arranges in heating plate on the barrel inwall and heating plate, and a minute steam chest is established in the middle of establishing collection chamber in heat radiation two ends, chamber, divides steam chest and axle steam inlet pipe UNICOM, collection chamber and axle drainpipe UNICOM.
For easy to process, preferred plan of the present utility model is: barrel is spliced to form successively by several arc heating plates, and heating plate is interlayer, interlayer internal cavity consist of to conduct heat heat radiation chamber, in the middle of cavity with minute steam chest UNICOM, two ends and collection chamber UNICOM.
Another kind of optimum structure of the present utility model, as Fig. 1, Fig. 2 and shown in Figure 3, described barrel is spliced to form successively by several arc heating plates 15, heating plate 15 inwalls are provided with the chamber 16 of dispelling the heat, and the chamber of dispelling the heat consists of heat transfer chamber, and the two ends, chamber of dispelling the heat are provided with collection chamber, the centre is provided with a minute steam chest, heat radiation chamber and collection chamber and minute steam chest UNICOM divide steam chest and axle steam inlet pipe UNICOM, collection chamber axle outlet pipe UNICOM.
In order to reduce the stress that produces because of the caused distortion of expanding with heat and contract with cold, be provided with at least two circular arc bendings on steam inlet pipe 8 of the present utility model and blast pipe 9.
For intercept heat loss effectively all sidedly, the utilization rate the utility model that significantly improves heat also is provided with thermal insulation layer on the inwall of heat transfer chamber.Filling with insulation material between axle steam inlet pipe, axle outlet pipe and spindle nose is provided with heat-barrier material between spindle nose connector and skeleton, all is arranged with thermal insulation layer outside sub-steam pipe, collecting pipe, steam inlet pipe and blast pipe.Thermal insulation layer is made by heat-barrier material.
Operation principle of the present utility model is as follows: during work, heat exchange medium, distribute to each steam inlet pipe as high temperature and high pressure steam by the axle steam inlet pipe, enter in the vestibule of heating plate through a minute steam chest again, carry out the caloic exchange with heating plate in the process of heating plate of flowing through, the dryer cylinder temperature is raise, satisfy technological requirement.This structure hole cavity configuration designing and calculating is simple, and materials are few, easily make, and withstand voltage height, steam consumption is few, quick heating.Heat exchange medium is hot water, deep fat also.
Filling heat-barrier material between steam pipe, outlet pipe and spindle nose, between contiguous block and type steel skeleton, heat-barrier material is arranged, heat-barrier material is laid in minute vapour device, steam bottle, steam inlet pipe, blast pipe outside and housing inboard comprehensively, and intercept heat loss comprehensively increases substantially the utilization rate of caloic.
Claims (8)
1. low temperature drying device that is used for papermaking, comprise housing, power transmission shaft (2), operating axis (1), axle steam inlet pipe (5) and axle outlet pipe (6), housing is by barrel (7) and a left side, right cover plate (10, 11) consist of, housing is by barrel (7) and be arranged on a barrel left side, the left side at right two ends, right cover plate (10, 11) consist of, be provided with spindle nose connector (13) in barrel between left cover plate (10) and right cover plate (11), power transmission shaft (2) and operating axis (1) are arranged on the two ends of spindle nose connector (13), spindle nose connector (13) is connected with barrel (7) by skeleton (12), it is characterized in that: be provided with heat transfer chamber (14) in barrel (7), heat transfer chamber (14) and minute steam chest (4) UNICOM that is arranged in the middle of barrel, two ends and collection chamber (3) UNICOM that is arranged on the barrel two ends, divide steam chest (4) and axle steam inlet pipe (5) UNICOM, collection chamber (3) and axle drainpipe (6) UNICOM.
2. the low temperature drying device for papermaking according to claim 1, it is characterized in that: described heat transfer chamber is the heat radiation chamber that arranges in heating plate and heating plate on the barrel inwall, a minute steam chest is established in the middle of establishing collection chamber in heat radiation two ends, chamber, minute steam chest and axle steam inlet pipe UNICOM, collection chamber and axle drainpipe UNICOM.
3. the low temperature drying device for papermaking according to claim 2, it is characterized in that: described barrel is spliced to form successively by several arc heating plates, and heating plate is interlayer, and the interlayer internal cavity consists of the chamber of dispelling the heat of conducting heat, in the middle of cavity with minute steam chest UNICOM, two ends and collection chamber UNICOM.
4. the low temperature drying device for papermaking according to claim 1, it is characterized in that: described barrel is spliced to form successively by several arc heating plates (15), heating plate (15) inwall is provided with the chamber (16) of dispelling the heat, the heat radiation chamber consists of heat transfer chamber, heat radiation two ends, chamber are provided with collection chamber, and the centre is provided with a minute steam chest, heat radiation chamber and collection chamber with divide steam chest UNICOM, minute steam chest and axle steam inlet pipe UNICOM, collection chamber axle outlet pipe UNICOM.
5. the described low temperature drying device for papermaking of any one according to claim 1-4, it is characterized in that: the axle steam inlet pipe (5) that extend in barrel is connected with a minute steam chest (4) by steam inlet pipe (8), and the axle outlet pipe (6) that extend in barrel is connected with collection chamber (3) by blast pipe (9).
6. the low temperature drying device for papermaking according to claim 5, is characterized in that: be provided with at least two circular arc bendings on described steam inlet pipe (8) and blast pipe (9).
7. the low temperature drying device for papermaking according to claim 6, is characterized in that: also be provided with thermal insulation layer on the inwall of heat transfer chamber.
8. the low temperature drying device for papermaking according to claim 7, it is characterized in that: filling with insulation material between axle steam inlet pipe, axle outlet pipe and spindle nose, be provided with heat-barrier material between spindle nose connector and skeleton, all be arranged with thermal insulation layer outside sub-steam pipe, collecting pipe, steam inlet pipe and return tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535765 CN202945496U (en) | 2012-10-19 | 2012-10-19 | Low temperature dryer for papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535765 CN202945496U (en) | 2012-10-19 | 2012-10-19 | Low temperature dryer for papermaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945496U true CN202945496U (en) | 2013-05-22 |
Family
ID=48421203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220535765 Expired - Fee Related CN202945496U (en) | 2012-10-19 | 2012-10-19 | Low temperature dryer for papermaking |
Country Status (1)
| Country | Link |
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| CN (1) | CN202945496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899954A (en) * | 2012-10-19 | 2013-01-30 | 河南江河纸业股份有限公司 | Low-temperature dryer for making paper |
-
2012
- 2012-10-19 CN CN 201220535765 patent/CN202945496U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899954A (en) * | 2012-10-19 | 2013-01-30 | 河南江河纸业股份有限公司 | Low-temperature dryer for making paper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151019 |
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| EXPY | Termination of patent right or utility model |