CN210220547U

CN210220547U - Directional ventilation unit of seam formula bag

Info

Publication number: CN210220547U
Application number: CN201920943568.5U
Authority: CN
Inventors: Wenbin Li; 李文斌
Original assignee: Guangdong Lee and Man Paper Manufacturing Co Ltd
Current assignee: Guangdong Lee and Man Paper Manufacturing Co Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-03-31
Anticipated expiration: 2029-06-21

Abstract

The utility model relates to a directional ventilation unit of seam formula bag, including frame, dryer, guide roll and dry net, dry the net and establish between guide roll and dryer, wet web sets up dry net with between the surface of dryer, wet web leaves the interval between one side of dryer and dry the net and forms the bag district, still include heat exchanger, hair-dryer and a plurality of blow box, the hair-dryer is connected the tube side import of heat exchanger, the tube side export of heat exchanger connects the blow box through the pipeline, the blow box is established in bag district one side, the air outlet of blow box is towards the bag district, the shell side import of heat exchanger communicates the steam outlet of dryer, under the heat exchange effect of heat exchanger, utilize the hot steam that the dryer steam outlet came out to heat the cold air, and blow the hot air to the blow box of installing in bag district one side with the hair-dryer, through the air outlet, realize the purpose of accurately blowing the hot air to the bag district, so as to improve the temperature of the air entering the bag area and achieve the aim of improving the drying and dehydrating efficiency.

Description

Directional ventilation unit of seam formula bag

Technical Field

The utility model relates to a paper manufacture equipment technical field, concretely relates to directional ventilation unit of seam formula bag.

Background

In the papermaking process, the paper dewatering modes mainly comprise scraper dewatering, vacuum dewatering, squeezing dewatering and drying dewatering, wherein the drying dewatering is to heat the surface of a drying cylinder by introducing steam into the drying cylinder, then a drying net can drive a wet paper web to be attached to the surface of the drying cylinder so as to heat and evaporate water in the wet paper web, so as to achieve the aim of drying dewatering, as the modern papermaking machine is continuously produced, the wet paper web can continuously run between the surface of one drying cylinder and the surface of another drying cylinder so as to improve the drying efficiency, when the wet paper web leaves the surface of the drying cylinder under the driving of the drying net, an increasing interval is formed among the drying net, the paper and the surface of the drying cylinder, the increasing interval is called as a bag area, the bag area can generate negative pressure due to the increasing of the space of the drying cylinder, and further, cold air at the outside can enter the bag area, the cool air entering the pocket reduces the temperature of the wet web within the pocket, thereby affecting the drying efficiency of the wet web.

SUMMERY OF THE UTILITY MODEL

For solving the current cold air that enters into in the pocket district can reduce the temperature of wet paper web in the pocket district to can influence wet paper web drying efficiency's technical problem, the utility model provides a directional ventilation unit of seam formula bag.

In order to solve the technical problem, the utility model provides a following technical scheme:

the sewing bag directional ventilation device comprises a rack, a drying cylinder, a guide roller and a drying net, wherein the drying cylinder and the guide roller are arranged on the rack, the drying net is arranged between the guide roller and the drying cylinder, a wet paper web is arranged between the drying net and the surface of the drying cylinder, a bag area is formed between one side, away from the drying cylinder, of the wet paper web and the drying net, the sewing bag directional ventilation device further comprises a heat exchanger, a blower and a plurality of blowing boxes, the heat exchanger is a shell-and-tube type heat exchanger, the blower is connected with a tube pass inlet of the heat exchanger, the blower is an air blower, a tube pass outlet of the heat exchanger is connected with the blowing boxes through a pipeline, the blowing boxes are arranged on one side of the bag area, an air outlet of the blowing boxes faces the bag area, and a shell pass inlet of.

Furthermore, the blow box is provided with a plurality of air outlets, a plurality of air guide pipes are arranged inside the blow box, the first end parts of the plurality of air guide pipes are communicated with the air inlet of the blow box, the second end parts of the plurality of air guide pipes are respectively connected with the plurality of air outlets, namely, one air guide pipe is connected with one air outlet, so that the air guide pipes can uniformly distribute hot air coming from the air inlet to the corresponding air outlets, the plurality of air outlets on the blow box are uniformly distributed along the axial direction of the drying cylinder, and the plurality of air outlets face the bag area, so that the effect of uniformly blowing hot air to the bag area along the axial direction of the drying cylinder can be achieved, the hot air blowing efficiency is improved, and the purpose of improving the dehydration efficiency is achieved.

Furthermore, a plurality of be equipped with the nozzle on the air outlet, be favorable to balancing a plurality of the hot-blast wind pressure that the air outlet came out.

Compared with the prior art, the beneficial effects of the utility model are as follows:

under heat exchanger's heat exchange effect, utilize the hot steam heating cold air that dryer steam outlet came out to blow the hot air to installing in the case of blowing of pocket district one side with the hair-dryer, through the air outlet, realize blowing the accurate purpose to the pocket district with the hot air, in order to realize improving the temperature of the air that gets into the pocket district, in order to realize improving the purpose of stoving dehydration efficiency, the steam tail steam that utilizes the heating dryer heats the cold air, play the effect of make full use of tail steam heat energy, the energy can be saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a directional ventilation device for a sewing bag of the present invention;

fig. 2 is a schematic view of the internal structure of the blow box;

in the figure: 1. a frame; 2. a drying cylinder; 21. a steam outlet; 3. a guide roller; 4. a dry network; 5. a wet paper web; 6. a pocket area; 7. a heat exchanger; 71. a tube side inlet; 72. a tube side outlet; 73. a shell side inlet; 8. a blower; 9. a blow box; 91. an air outlet; 92. an air guide pipe; 93. an air inlet; 10. a pipeline; 11. and (4) a nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Figures 1 to 2 show a slot-type bag directional ventilation device comprising a machine 1, a drying cylinder 2, a guiding roll 3 and a drying wire 4, the drying cylinder 2 and the guiding roll 3 being arranged on the machine frame 1, the drying wire 4 being arranged between the guiding roll 3 and the drying cylinder 2, a wet paper web 5 being arranged between the drying wire 4 and the surface of the drying cylinder 2, the interval between the side of the wet paper web 5 leaving the drying cylinder 2 and the drying wire 4 forming a bag zone 6, a heat exchanger 7, a blower 8 and a plurality of blow boxes 9, wherein, the heat exchanger 7 is a shell-and-tube type, the blower 8 is connected with the tube pass inlet 71 of the heat exchanger 7, the blower 8 is a blower for conveying air with certain pressure for the heat exchanger 7, the heat exchanger 7 is connected with the blow box 9 through a pipeline 10, the blow box 9 is arranged at one side of the bag area 6, the air outlet 91 of the blow box 9 faces the bag area 6, and the shell pass inlet 73 of the heat exchanger 7 is communicated with the steam outlet 21 of the drying cylinder 2.

Preferably, the blow box 9 has a plurality of air outlets 91, a plurality of air ducts 92 are arranged inside the blow box 9, first ends of the plurality of air ducts 92 are all communicated with the air inlet 93 of the blow box 9, second ends of the plurality of air ducts 9 are respectively connected with the plurality of air outlets 91, that is, one air duct 92 is connected with one air outlet 91, so that the air duct 92 can uniformly distribute hot air coming from the air inlet 93 to the corresponding air outlet 91, the plurality of air outlets 91 on the blow box 9 are uniformly arranged along the axial direction of the drying cylinder 2, the plurality of air outlets 91 face the pocket 6, and can uniformly blow hot air to the pocket 6 along the axial direction of the drying cylinder 2, thereby improving the blowing efficiency of hot air and achieving the purpose of improving the dehydration efficiency.

Preferably, the nozzles 11 are disposed on the plurality of air outlets 91, so as to balance the air pressure of the hot air from the plurality of air outlets 91.

Compared with the prior art, the beneficial effects of this embodiment are as follows:

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A directional ventilation device for a seam type bag comprises a machine frame, a drying cylinder, a guide roller and a drying net, wherein the drying cylinder and the guide roller are arranged on the machine frame, the drying net is arranged between the guide roller and the drying cylinder, a wet paper web is arranged between the drying net and the surface of the drying cylinder, and a bag area is formed between one side, away from the drying cylinder, of the wet paper web and the drying net.

2. The directional ventilation device for the sewn bag according to claim 1, wherein the blow box has a plurality of air outlets, a plurality of air ducts are provided inside the blow box, first ends of the plurality of air ducts are communicated with the air inlet of the blow box, and second ends of the plurality of air ducts are respectively connected to the plurality of air outlets.

3. A directional ventilation unit for a seamed bag as claimed in claim 2, wherein a plurality of said vents are provided with nozzles.