CN213925658U

CN213925658U - Novel Yankee hood

Info

Publication number: CN213925658U
Application number: CN202022766174.2U
Authority: CN
Inventors: 赵立新
Original assignee: Hunan Weijie Environmental Protection Technology Co ltd
Current assignee: Hunan Weijie Environmental Protection Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-10
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a novel yankee gas hood, the rain cover comprises a cover body, the below of the cover body is provided with dryer, its characterized in that: the top of the cover body is connected with an air inlet pipeline, two air deflectors are fixed on two sides of the lower portion of the air inlet pipeline in the cover body, a partition plate is arranged between the two air deflectors, and the space between the two air deflectors is divided into a transverse main air duct above the partition plate and a longitudinal branch air duct below the partition plate; a plurality of air spraying boxes are fixed above the drying cylinder in the cover body, air spraying nozzles are arranged in the air spraying boxes, an air return channel communicated with the longitudinal branch air channel is arranged between the cover body and the air deflector, and an air return pipeline communicated with the air return channel is arranged above the air return channel at the top of the cover body; through the non-contact ventilation drying, the yield is improved, and the quality is ensured.

Description

Novel Yankee hood

Technical Field

The utility model relates to a papermaking production processing equipment technical field, concretely relates to novel raise and restrict gas cover.

Background

The Yankee hood is mainly suitable for a high-speed tissue paper machine or a special paper machine, and when the drying capacity of a drying cylinder of the paper machine is limited, the Yankee hood is arranged to effectively solve the problem of the drying capacity of the paper machine; practice proves that the Yankee hood not only can solve the drying capacity of a paper machine, but also can improve the quality of paper sheets and obviously improve the flexibility and the bulk of the paper sheets.

With the development of society, people increase the paper consumption, which requires the improvement of the paper making process technology, and under the condition that the original paper making drying equipment is not changed, how to quickly evaporate the moisture in the paper web to accelerate the formation of finished paper becomes the problem which needs to be solved, increases the yield and has the least investment. In the original laggard paper-making period, the paper-making speed is increased without increasing the number of drying cylinders, so that more equipment and field funds are directly required to be invested, or the steam pressure of the drying cylinders is increased to increase the surface temperature of the drying cylinders, more energy consumption in the later period is required, and the surface quality of the paper is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a novel Yankee hood, which comprises a hood body, wherein a drying cylinder is arranged below the hood body, one side surface of the hood body is connected with an air inlet pipeline, two air deflectors are fixed at two sides below the air inlet pipeline in the hood body, a partition plate is arranged between the two air deflectors, and the space between the two air deflectors is divided into a transverse main air channel above the partition plate and a longitudinal branch air channel below the partition plate; a plurality of air spraying boxes are uniformly fixed above the drying cylinder inside the cover body, air spraying nozzles are arranged inside the air spraying boxes, an air return channel communicated with the longitudinal air branch channel is arranged between the cover body and the air guide plate, and an air return pipeline communicated with the air return channel is arranged above the air return channel at the top of the cover body.

Furthermore, four longitudinal branch air ducts are arranged.

Furthermore, a circulating air heater is arranged to be communicated with the air return pipeline, and the other end of the circulating air heater is communicated with the air inlet pipeline.

Further, 20 to 40 blast nozzles are provided.

The utility model discloses beneficial effect as follows:

1. the equipment is a complete set of equipment coated on the surface of the drying cylinder, the occupied area of the equipment is not required to be additionally increased, the utilization rate of a factory building is improved, the surface of a wet sheet is seamlessly covered by hot air, water in the sheet is synchronously evaporated, the strength of the sheet is synchronously increased, the yield of paper is not influenced by paper breakage, the evaporation rate of the water in the sheet is improved, the yield in unit time is increased, steam for evaporating water is unchanged, the yield is improved in the same time to reduce the steam consumption of the paper per ton, and the yield is improved and the quality is ensured through non-contact ventilation drying.

2. The circulating hot air blower is arranged to recycle and reheat the hot air in the return air pipeline, so that the aims of saving energy and reducing energy consumption are fulfilled.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a rear view of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a of fig. 1.

The reference numerals are explained below: 1. a cover body; 2. a drying cylinder; 3. an air inlet pipeline; 4. an air deflector; 5. a partition plate; 6. a transverse main air duct; 7. a longitudinal branch air duct; 8. an air injection box; 9. a blast nozzle; 10. an air return duct; 11. a return air duct; 12. a circulating air heater; 13. and a conveying roller.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further explained with reference to the drawings in the following description:

as shown in fig. 1, 2 and 3, a novel yankee hood comprises a hood body 1, wherein a drying cylinder 2 is arranged below the hood body 1, one side surface of the hood body 1 is connected with an air inlet pipeline 3, two air deflectors 4 are fixed on two sides of the hood body 1 below the air inlet pipeline 3, a partition plate 5 is arranged between the two air deflectors 4, and the space between the two air deflectors 4 is divided into a transverse main air duct 6 above the partition plate 5 and a longitudinal branch air duct 7 below the partition plate 5; a plurality of air injection boxes 8 are uniformly fixed above the drying cylinder 2 in the cover body 1, air injection nozzles 9 are arranged in the air injection boxes 8, an air return channel 10 communicated with the longitudinal branch air channel 7 is arranged between the cover body 1 and the air deflector 4, and an air return pipeline 11 communicated with the air return channel 10 is arranged above the air return channel 10 at the top of the cover body 1; four longitudinal branch air ducts 7 are arranged, and 20-40 air injection nozzles 9 are arranged; a circulating air heater 12 is arranged to be communicated with the air return pipeline 11, and the other end of the circulating air heater 12 is communicated with the air inlet pipeline 3.

The utility model discloses the theory of operation as follows: the paper sheets are conveyed to the surface of the drying cylinder 2 through the conveying roller 13, hot air is blown into the transverse main air duct 6 of the cover body 1 through the air inlet pipeline 3 from an external main fan (not shown in the figure) and then is uniformly distributed into each longitudinal branch air duct 7, the hot air is conducted to the air spraying box 8 through the longitudinal branch air ducts 7, the distance between the air spraying box 8 and the paper sheets on the surface of the drying cylinder 2 is small and uniform, the hot air is blown to the paper sheets through the air spraying nozzle 9 to dry the paper sheets, the drying speed of the paper sheets is consistent, the hot air blown to the surface of the paper sheets is absorbed back by the external main fan (not shown in the figure) after being temporarily stopped on the surface of the drying cylinder 2, a small part of moisture is discharged with the water, and most of the hot air is sent into the cover body 1 through the air inlet pipeline 3 by the circulating air heater 12; the surface of the wet paper is covered seamlessly by hot air, wherein the angle of the air nozzle 9 is 70 degrees in a reverse blowing mode, so that excessive water mist is prevented from entering the cover body 1, evaporated water in the cover body 1 can be discharged rapidly, water in the paper is evaporated synchronously, the strength of the paper is increased synchronously, the yield of the paper cannot be influenced due to paper breakage, the evaporation rate of the water in the paper is increased, the yield in unit time is increased, the yield is increased in the same time, the steam consumption of the paper per ton is reduced, and through non-contact ventilation drying, the yield is increased, and the quality is guaranteed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a novel yankee gas hood, includes the cover body, the below of the cover body is provided with dryer, its characterized in that: one side surface of the cover body is connected with an air inlet pipeline, two air deflectors are fixed on two sides of the lower portion of the air inlet pipeline in the cover body, a partition plate is arranged between the two air deflectors, and the space between the two air deflectors is divided into a transverse main air channel above the partition plate and a longitudinal branch air channel below the partition plate; a plurality of air spraying boxes are uniformly fixed above the drying cylinder in the cover body, air spraying nozzles are arranged in the air spraying boxes, an air return channel communicated with the longitudinal branch air channel is arranged between the cover body and the air guide plates, and an air return pipeline communicated with the air return channel is arranged above the air return channel at the top of the cover body.

2. A novel yankee hood according to claim 1, characterized in that: four longitudinal branch air ducts are arranged.

3. A novel yankee hood according to claim 1, characterized in that: and a circulating air heater is arranged and communicated with the air return pipeline, and the other end of the circulating air heater is communicated with the air inlet pipeline.

4. A novel yankee hood according to claim 1, characterized in that: the number of the air nozzles is 20 to 40.