Efficient heating roller

Abstract

The utility model belongs to the technical field of papermaking heating rollers, and particularly relates to an efficient heating roller which comprises a heating roller body and two rotating shafts symmetrically arranged on the two sides of the heating roller body, shaft holes are formed in the centers of the two ends of the heating roller body, first bearings are arranged on the inner sides of the shaft holes, and the rotating shafts are hollow shafts, penetrate through the first bearings and extend into the inner side of the heating roller body. A water drainage pipe is fixedly arranged on the inner wall of the heating roller, the section of the water drainage pipe is in an unclosed spiral shape, one end of the water drainage pipe is closed, the other end of the water drainage pipe is open and connected with a pipeline, a steam pipe is arranged in the heating roller, and small holes are evenly distributed in the pipe wall of the steam pipe. Efficient heat transfer of the heating medium is achieved, the temperature stability of the roller is high in the using process of the heating roller, and the good heating performance of the heating roller is kept.

Description

TECHNICAL FIELD

[0001] The utility model belongs to papermaking heating roller technical field, specifically, relate to a kind of high-efficiency heating roller. BACKGROUND

[0002] In the prior art, steam pipe is connected to hollow heating roller, and heating roller is heated by steam, so that paper is shaped and dried by heating roller. However, in this process, the temperature inside the heating roller is necessarily higher than the temperature outside the heating roller, and condensation occurs when steam enters the heating roller, causing condensed water to accumulate inside the heating roller, thereby affecting the heating performance of the heating roller. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of high-efficiency heating roller, including heating roller and two symmetrical rotation shafts arranged on both sides of heating roller, heating roller is hollow cylindrical, and the center of both ends of heating roller is provided with shaft hole, the inner side of shaft hole is provided with bearing one, rotation shaft is hollow shaft and passes through bearing one and enters the inner side of heating roller, the inner wall of heating roller is fixedly provided with drain pipe, the cross section of drain pipe is not closed spiral, and the spiral opening of drain pipe is the same as the rotation direction of heating roller, one end of drain pipe is closed, the other end is open and connected with pipeline, the other end of pipeline penetrates into rotation shaft close to the opening end of drain pipe, steam pipe is arranged in heating roller, steam pipe penetrates into heating roller from rotation shaft close to the closed end of drain pipe, steam pipe in heating roller is spiral, and is closely arranged on the inner wall of heating roller, and the pipe wall of steam pipe is uniformly provided with small hole.

[0004] Further, the inner side of the heating roller is provided with a fixing plate, which connects the roller barrel and the side wall of the heating roller. The heating roller for papermaking has a large volume and operates continuously for a long time. The hollow interior of the heating roller is prone to heat deformation or fatigue deformation, which affects the papermaking efficiency. The fixing plate connects the roller barrel and the side wall to fix and support the roller barrel without deformation, so that the heating roller operates normally.

[0005] Further, a temperature sensor is arranged on the inner wall of the heating roller to monitor the temperature of the roller barrel. The steam temperature and steam quantity can be adjusted according to the temperature to meet the drying temperature of the pulp.

[0006] Further, the heating medium in the steam pipe is water vapor.

[0007] Further, a bearing two is fixedly arranged on the outer side of the pipe segment of the pipeline in the rotation shaft, and the bearing two is provided with a bracket. The bracket is fixedly connected with the rotation shaft. The pipe segment of the pipeline in the rotation shaft rotates in the heating roller during use. To prevent the pipeline from colliding or wearing with the rotation shaft, the bearing two and the bracket are arranged between the pipeline and the rotation shaft to fix the position of the pipeline in the rotation shaft.

[0008] The utility model also includes other device or component that can make the high -efficient heating roller normal use, all are the conventional technical means in the field. In addition, the pipeline and steam pipe not added in the utility model are all used conventional technical means in the field.

[0009] The working principle of the utility model discloses, when the device is used, steam is input heating roller through steam pipe, and overflow from the small hole, and steam heats the roller cylinder of heating roller, and then is discharged from the other side rotating shaft, when steam passes through the roller cylinder of heating roller, there will be certain condensation, and the condensed water is gathered in the bottom of heating roller, when the drain pipe rotates to the bottom of heating roller, the accumulated water in the bottom flows into the spiral opening of drain pipe, when the drain pipe rotates to the height higher than the axis of heating roller, the accumulated water flows out rotating shaft through pipeline, when the accumulated water does not flow out drain pipe and pipeline in time, the accumulated water is stored in the internal spiral of drain pipe, and is discharged when next time drains.

[0010] The utility model discloses the condensed water generated by steam condensation is discharged from heating roller, avoids the condensed water gathering in the inside of heating roller, realizes the efficient heat transfer of heating medium, and the roller cylinder temperature stability is high during the use of heating roller, and the good heating performance of heating roller is kept. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model is further illustrated below in connection with the drawings and examples.

[0012] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0013] Fig. 2 It is the sectional structure schematic diagram of heating roller in the utility model.

[0014] Fig. 3 It is the structure schematic diagram of support in the utility model.

[0015] Fig. 4 It is the sectional schematic diagram of drain pipe in the utility model. DETAILED DESCRIPTION

[0016] The utility model is clearly described below in connection with the drawings and specific examples in the embodiment of the utility model, and the description in this place is only used to explain the utility model, but not as the limitation of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor, any modification, equivalent replacement, improvement etc. that is made, should be included in the protection scope of the utility model.

[0017] EMBODIMENT

[0018] As Figs. 1-4As shown, the present invention provides a high-efficiency heating roller, including a heating roller 1 and two rotating shafts 2 symmetrically arranged on both sides of the heating roller 1. The heating roller 1 is a hollow cylinder, and the center of both ends of the heating roller 1 is provided with shaft holes 3. The inner side of the shaft holes 3 is provided with bearings 4. The rotating shafts 2 are hollow shafts and pass through the bearings 4 to enter the inner side of the heating roller 1. A drain pipe 5 is fixedly provided on the inner wall of the heating roller 1. The cross-section of the drain pipe 5 is a non-closed spiral shape, and the spiral opening of the drain pipe is in the same direction as the rotation of the heating roller 1. One end of the drain pipe 5 is closed, and the other end is open and connected to a pipe 6. The other end of the pipe 6 passes through the rotating shaft 2 near the open end of the drain pipe 5. A steam pipe 7 is provided inside the heating roller 1. The steam pipe 7 passes through the rotating shaft 2 near the closed end of the drain pipe 5 and enters the heating roller 1. The steam pipe 7 located inside the heating roller 1 is spiral and coiled tightly against the inner wall of the heating roller 1. Small holes 8 are evenly distributed on the wall of the steam pipe 7.

[0019] Furthermore, a fixing plate 9 is provided on the inner side of the heating roller 1. The fixing plate 9 connects the roller and the side wall of the heating roller 1. The heating roller 1 for papermaking is large in volume and operates continuously for a long time. The hollow interior of the heating roller 1 can easily cause the heating roller 1 to be heated or fatigued and deformed, affecting the papermaking efficiency. The fixing plate 9 connects the roller and the side wall to fix and support the roller to prevent deformation and ensure the normal operation of the heating roller 1.

[0020] Furthermore, a temperature sensor 10 is provided on the inner wall of the heating roller 1 to monitor the roller temperature of the heating roller 1. The steam temperature and steam feed rate can be adjusted according to the temperature to meet the drying temperature of the pulp.

[0021] Furthermore, the heating medium inside the steam pipe 7 is water vapor.

[0022] Furthermore, a bearing 2 11 is fixedly installed on the outside of the pipe section of pipe 6 located inside the rotating shaft 2, and the bearing 2 11 is equipped with a bracket 12. The bracket 12 is fixedly connected to the rotating shaft 2. During the use of the heating roller 1, the pipe section of pipe 6 located inside the rotating shaft 2 will rotate with the heating roller 1 inside the rotating shaft 2. In order to prevent the pipe 6 from colliding or wearing with the rotating shaft 2, a bearing 2 11 and a grid-shaped bracket 12 are set between the pipe 6 and the rotating shaft 2 to allow steam to pass through, thereby fixing the position of the pipe 6 inside the rotating shaft 2.

[0023] The working principle of the utility model discloses, the device is in use, steam is input heating roller 1 through steam pipe 7, overflow from the small hole 8, steam will heating roller 1's roll heating, and then from the other side of rotating shaft 2 discharge, when steam passes through the roll of heating roller 1, there will be certain condensation, cause the condensate to gather in the bottom of heating roller 1, when drain pipe 5 rotates to the bottom of heating roller 1, the bottom of the accumulated water flows into the volute opening of drain pipe 5, when drain pipe 5 rotates to the height higher than the axis of heating roller 1, the accumulated water flows out rotating shaft 2 through pipeline 6, when the accumulated water does not flow out drain pipe 5 and pipeline 6 in time, the accumulated water will be stored in the internal vortex of drain pipe 5, and is discharged when next time draining.

[0024] The above has described the embodiment of the utility model, and the above-mentioned explanation is exemplary, is not exhaustive, and is not limited to the disclosed embodiment. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiment.

Claims

1. A high-efficiency heating roller comprising a heating roller and two rotating shafts symmetrically arranged on both sides of the heating roller, the heating roller being hollow cylindrical in shape, characterized in that: The heating roller is provided with shaft holes in the center of two ends, the inner side of the shaft hole is provided with bearing one, the rotating shaft is a hollow shaft and passes through bearing one and enters the inner side of the heating roller, the inner wall of the heating roller is fixedly provided with a drain pipe, the cross section of the drain pipe is a non-closed spiral shape, the spiral opening of the drain pipe is the same as the rotating direction of the heating roller, one end of the drain pipe is closed, the other end is open and connected with a pipe, the other end of the pipe penetrates into the rotating shaft close to the open end of the drain pipe, the heating roller is provided with a steam pipe, the steam pipe penetrates into the heating roller from the rotating shaft close to the closed end of the drain pipe, the steam pipe in the heating roller is spiral and closely arranged on the inner wall of the heating roller, and the pipe wall of the steam pipe is uniformly provided with small holes.

2. A high efficiency heating roller as claimed in claim 1, wherein: The inner side of the heating roller is provided with a fixed plate, and the fixed plate is connected with the roller barrel and the side wall of the heating roller.

3. A high efficiency heating roller as claimed in claim 2, wherein: The inner side wall of the heating roller is provided with a temperature sensor.

4. A high efficiency heating roller as claimed in claim 3, wherein: The heating medium in the steam pipe is water vapor.

5. A high efficiency heating roller as claimed in claim 4, wherein: The outer side of the pipe segment in the rotating shaft is fixedly provided with bearing two, and bearing two is provided with a support, and the support is fixedly connected with the rotating shaft.

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