CN210657771U

CN210657771U - Paper machine with spray starch cleaning device

Info

Publication number: CN210657771U
Application number: CN201920968505.5U
Authority: CN
Inventors: 黎桂华; 董福兴
Original assignee: Dongguan Jianhui Paper Co Ltd
Current assignee: Dongguan Jianhui Paper Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-06-02
Anticipated expiration: 2029-06-25

Abstract

A paper machine with a starch spraying cleaning device comprises a frame, a dry net, a spraying device, a dust collecting device and a blowing device, wherein the dry net is arranged on the frame; spray set includes feedway, shower and a plurality of shower, the shower is installed on feedway, and a plurality of shower are detachable to be installed on the shower, and the tip of shower is provided with sprays the mouth, it is the setting of loudspeaker form to spray the mouth, and the cross section of shower is the arc setting of indent at the outward appearance of a side of spraying mouth. The utility model collects the mist and the dust by arranging the dust suction device and the blowing device, thereby avoiding the problems of edge breaking, hole breaking, paper breaking and the like of the paper web caused by the dust hanging and material accumulation on the equipment and the falling of the dust on the paper web; the practicability is strong, and the popularization significance is strong.

Description

Paper machine with spray starch cleaning device

Technical Field

The utility model relates to a papermaking equipment technical field especially relates to a paper machine with spray starch cleaning device.

Background art:

currently, in the paper making process, in order to enhance the stability of paper quality, starch is required to be sprayed on the surface layer of a paper web in the production process. At present, due to the advantages of low gelatinization temperature, easy dispersion, high viscosity and good thermal stability, starch is becoming an indispensable papermaking auxiliary agent, and the modified starch has the widest application range and the largest using amount at present. However, starch can produce large mist and dust in the spraying process, which easily causes hanging and accumulation on equipment and falls onto paper web, resulting in problems of paper web hole breaking, edge breaking and even paper breaking, and seriously affects the production of paper web and the quality of paper web.

The utility model has the following contents:

based on this, the utility model discloses a main aim at provides a paper machine with spray starch cleaning device to solve the produced fog of traditional paper machine spray set and dust too much, lead to the problem that the paper web broke the hole, brokenly the limit.

In order to achieve the above purpose, the utility model provides a paper machine with a starch spraying cleaning device,

a paper machine with a starch spraying cleaning device comprises a frame, a dry net, a spraying device, a dust collecting device and a blowing device, wherein the dry net is arranged on the frame; spray set includes feedway, shower and a plurality of shower, the shower is installed on feedway, and a plurality of shower are detachable to be installed on the shower, and the tip of shower is provided with the mouth that sprays, the mouth that sprays is the loudspeaker form setting that the aperture diminishes gradually from outside to inside, and the arc setting of indent is personally submitted at the outward surface of mouth one side to the cross section of shower.

Furthermore, the spray pipe extends horizontally, and the spray pipe crosses over the dry net in the width extending direction of the dry net, and the spray port is arranged right above the dry net.

Furthermore, a row of through holes are formed in the spray pipe, and the through holes penetrate through the spray pipe from inside to outside; the spray header is detachably arranged in the corresponding through hole.

Furthermore, the extending direction of the through hole is consistent with the extending direction of the drying net, and the side wall of the lowest end of the through hole is flush with or lower than the side wall of the lowest end of the inner side of the spray pipe.

Furthermore, the spray header is L-shaped and comprises a horizontally extending installation part and a spray part vertically installed on the installation part, the installation part is installed in the through hole, and the spray header is arranged on the bottom surface of the spray part.

To sum up, the utility model discloses a collect fog and dust through setting up dust extraction and blast apparatus to can avoid the dust to hang material, long-pending material on equipment, drop on the paper web again, and then cause the paper web broken edge, broken hole, disconnected paper scheduling problem. In addition, the design of the spraying device 30 is not only suitable for processing paper webs with different widths, but also uniform in spraying and high in flexibility. The utility model discloses a practicality is strong, has stronger popularization meaning.

Drawings

FIG. 1 is a schematic diagram of a paper machine having a spray starch cleaning apparatus according to the present invention.

The specific implementation mode is as follows:

as shown in fig. 1, the present invention provides a paper machine having a spray starch cleaning device. The paper machine with the starch spraying cleaning device comprises a frame 10, a dry net 20, a spraying device 30, a dust collecting device 40 and a blowing device 50, wherein the dry net 20 is arranged on the frame 10, the spraying device 30 is arranged above the dry net 20 and can spray starch on paper webs on the dry net, the dust collecting device 40 and the blowing device 50 are respectively arranged at two sides of the dry net 20, and the blowing device 50 and the dust collecting device 40 are oppositely arranged.

The spraying device 30 includes a feeding device (not shown), a spraying pipe 31 and a plurality of spraying heads 32, wherein the spraying pipe 31 is installed on the feeding device, and the plurality of spraying heads 32 are evenly installed on the spraying pipe 31. The feeding device is filled with a starch solution dissolved in water, and the feeding device supplies the starch solution to the spraying pipe 31. In addition, still be provided with agitating unit in this feedway, this agitating unit stirs starch solution in the feedway in real time to caking in avoiding starch solution ensures starch solution's homogeneity. The spray pipe 31 extends horizontally, and the spray pipe 31 crosses over the drying wire 20 in the width extending direction of the drying wire 20.

The spray pipe 31 is provided with a row of through holes, the extending direction of the through holes is consistent with that of the dry net, and the side wall of the lowest end of each through hole is flush with or lower than the side wall of the lowest end of the inner side of the spray pipe 31, so that starch solution can be sprayed out from the spray head quickly, and excessive liquid accumulation in the spray pipe 31 is avoided. A protective layer is arranged on the inner periphery of the through hole, and a mounting hole (not shown) is formed in the protective layer. The shower head 32 is arranged in an L shape, and includes a horizontally extending installation part and a vertically installed shower part on the installation part. During installation, the installation part is inserted into the through hole from outside to inside and pushes the protective layer away from inside, so that the starch solution in the spray pipe 31 can smoothly enter the spray header 32. When the spray header 32 is taken out, the protective layer is restored to the original position, and the through hole is blocked, so that the starch solution in the spray pipe 31 can be prevented from flowing out.

The spray header 32 is detachably mounted on the spray pipe 31, thereby facilitating single disassembly, assembly, maintenance or repair. The bottom end of the spraying part of the spraying head 32 is provided with a spraying port, and the spraying port and the drying net are arranged in a vertically opposite mode. The spraying openings are arranged in a horn shape from inside to outside, so that starch spray sprayed by the spraying openings can cover a large area of paper web. In the embodiment, the cross section of the nozzle at the position of the spraying port is in the arc shape with the concave middle part, so that the distances from starch sprayed by the spraying port to the paper web are the same, the pressure of the starch on the paper web is the same, and the spraying consistency is further ensured.

In addition, the spraying device 30 is further provided with a control device, and a control switch is arranged in each spraying head 32, and the control switch can control the opening and closing of the spraying heads 32 and can also control the flow rate. A plurality of control switches are connected to the control device, and the control device can control the spray headers 32 uniformly or control one or more of the spray headers according to requirements, so that the spray headers 32 can be closed properly according to the width of the paper web. A pressure sensing device is also arranged in the spray header 32, and when the pressure sensing device senses that the pressure in the spray header does not accord with a set value, an alarm is given out, and meanwhile, the related spray device and a dry net are suspended to operate, so that uneven spraying is avoided.

The dust suction device 40 includes a dust suction pipe 41, a dust suction drive (not shown) disposed at one side end of the dust suction pipe 41, and a dust box (not shown) disposed outside the dust suction pipe 41, and a trumpet-shaped dust suction opening 42 is disposed at an inner side end of the dust suction pipe 41. In this embodiment, the air blowing device 40 is a blower, the air blowing device 40 blows the floating dust and mist toward the dust suction device 40, and the dust suction device 40 sucks the dust and mist into the dust box.

The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A paper machine with spray starch cleaning device which characterized in that: the drying net is arranged on the frame, the spraying device is arranged above the drying net, the dust collecting device and the blowing device are respectively arranged on two sides of the drying net, and the blowing device and the dust collecting device are oppositely arranged; spray set includes feedway, shower and a plurality of shower, the shower is installed on feedway, and a plurality of shower are detachable to be installed on the shower, and the tip of shower is provided with the mouth that sprays, the mouth that sprays is the loudspeaker form setting that the aperture diminishes gradually from outside to inside, and the arc setting of indent is personally submitted at the outward surface of mouth one side to the cross section of shower.

2. A paper machine having a spray starch cleaning apparatus as claimed in claim 1, wherein: the spray pipe extends horizontally, and the spray pipe crosses over the dry net in the width extending direction of the dry net, and the spray port is arranged right above the dry net.

3. A paper machine having a spray starch cleaning apparatus as claimed in claim 1, wherein: a row of through holes are formed in the spray pipe, and the through holes penetrate through the spray pipe inside and outside; the spray header is detachably arranged in the corresponding through hole.

4. A paper machine having a spray starch cleaning apparatus as claimed in claim 3, wherein: the extending direction of the through hole is consistent with the extending direction of the dry net, and the side wall of the lowest end of the through hole is flush with or lower than the side wall of the lowest end of the inner side of the spray pipe.

5. A paper machine having a spray starch cleaning apparatus as claimed in claim 4, wherein: the spray header is L-shaped and comprises a horizontally extending installation part and a spray part vertically installed on the installation part, the installation part is installed in the through hole, and the spray header is arranged on the bottom surface of the spray part.