CN113818275A - Papermaking production line is with drying net washing subassembly and device - Google Patents
Papermaking production line is with drying net washing subassembly and device Download PDFInfo
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- CN113818275A CN113818275A CN202111288648.XA CN202111288648A CN113818275A CN 113818275 A CN113818275 A CN 113818275A CN 202111288648 A CN202111288648 A CN 202111288648A CN 113818275 A CN113818275 A CN 113818275A
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- suction
- suction hood
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- spray head
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/32—Washing wire-cloths or felts
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Abstract
The invention belongs to the technical field of papermaking auxiliary equipment, and particularly relates to a dry net cleaning assembly and a dry net cleaning device for a papermaking production line, wherein the dry net cleaning assembly comprises a suction hood and a suction pipe; a suction cavity is formed in the center of the suction hood, a conical boss is arranged at the upper part of the suction hood, and a high-pressure cavity is formed between the inner wall of the suction hood and the conical boss; a gap adjusting bolt is connected with the inner thread of the cavity at the upper part of the suction hood, and a conical cavity matched with the conical boss is arranged at the lower part of the gap adjusting bolt; an air release gap is formed between the conical boss and the conical cavity; the high-pressure cavity is communicated with the suction cavity through the air release gap; the suction cavity is communicated with the suction pipe; the side wall of the suction hood is provided with a high-pressure air input hole; the lower part of the suction hood is provided with a plurality of high-pressure cleaning spray heads. The negative pressure is formed in the suction cavity based on the principle of the air amplifier, so that water mist and dirty water splashed upwards are sucked and then discharged from the suction pipe, and the cleanness and the dryness of other surrounding papermaking process environments are ensured.
Description
Technical Field
The invention belongs to the technical field of papermaking auxiliary equipment, and particularly relates to a dry net cleaning assembly and device for a papermaking production line.
Background
In the process of papermaking, wet paper is dried on a drying net, the paper is separated from the drying net after the paper is dried, the drying net needs to circularly bear new wet paper, dirty matters such as chips, sticky matters and the like can remain on the drying net after the drying net is separated from the paper, and if the dirty matters are not effectively cleaned, the paper breaking phenomenon easily occurs, and the quality and the production efficiency of the paper are influenced. In the prior art, dirt on a dry net is periodically scraped in a rhombic net scraper mode, but the mechanical forced scraping from the surface of the dry net has large abrasion to the dry net, so that the service life of the dry net is influenced; the other mode is a water flow flushing mode, water flow flushing is usually performed at only one angle, a dry net is difficult to clean comprehensively, the cleaning effect is poor, water mist or dirty water is easy to splash back in the flushing process, and once the water mist flies out, the production environment of other working procedures is affected or paper is damaged.
Disclosure of Invention
The invention aims to overcome the defects of poor cleaning effect and easy back splash of water mist or dirty water in the prior art, and provides a dry net cleaning assembly and a dry net cleaning device for a papermaking production line, which can clean comprehensively and effectively and collect water mist or dirty water.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a papermaking production line is with drying net washing subassembly which characterized in that: comprises a suction hood and a suction pipe connected to the suction hood; a suction cavity is formed in the center of the suction hood, a conical boss is arranged at the upper part of the suction hood, and a high-pressure cavity is formed between the inner wall of the suction hood and the conical boss; a gap adjusting bolt is connected with the inner thread of the cavity at the upper part of the suction hood, and a conical cavity matched with the conical boss is formed at the lower part of the gap adjusting bolt; an air release gap is formed between the conical boss and the conical cavity; the suction cavity penetrates through the conical boss and the inner part of the gap adjusting bolt; the high-pressure cavity is communicated with the suction cavity through an air release gap; the suction chamber is communicated with the suction pipe; the side wall of the suction hood is provided with a high-pressure air input hole communicated with the high-pressure cavity; and a plurality of high-pressure cleaning spray heads are arranged at the lower part of the suction hood.
Further, the central axis of the plurality of high pressure cleaning spray heads intersects the central axis of the suction hood at a point.
Furthermore, a water outlet hole of the high-pressure cleaning spray head extends into the suction cavity.
Furthermore, two high-pressure cleaning spray heads are arranged; the included angle of the projections of the central axes of the two high-pressure cleaning spray heads on the plane vertical to the central axis of the suction hood is 180 degrees.
Furthermore, the high-pressure cleaning spray heads are three, and the included angles of the projections of the central axes of the adjacent high-pressure cleaning spray heads on the plane vertical to the central axis of the suction hood are respectively 90 degrees, 135 degrees and 135 degrees.
Furthermore, the number of the high-pressure cleaning spray heads is four, and the included angles of the projections of the central axes of the adjacent high-pressure cleaning spray heads on the plane vertical to the central axis of the suction hood are all 90 degrees.
Further, the lower end of the suction pipe is fixedly connected with the suction hood through a flange.
Furthermore, a hose for discharging the sucked dirty water and water mist is connected to the upper end of the suction pipe.
Further, a nozzle mounting piece for mounting the high-pressure cleaning nozzle on the suction hood is also included; the outer surface of the lower part of the suction hood is provided with a spray head mounting inclined plane; the spray head mounting inclined plane is provided with a spray head mounting hole penetrating into the suction cavity; the outer surface of the high-pressure cleaning spray head is provided with a clamping groove, and the spray head mounting piece is provided with a bayonet clamped into the clamping groove of the high-pressure cleaning spray head; the nozzle mounting piece is fixedly mounted on the nozzle mounting inclined plane through a bolt; the high-pressure cleaning spray head is arranged in the spray head mounting hole.
The invention also discloses a dry net cleaning device for the papermaking production line, which is characterized in that: the drying net cleaning device comprises a drying net cleaning assembly, wherein a drying net moves along the X direction under the suction hood, a beam extending in the Y direction is arranged above the drying net, and the drying net cleaning assembly is connected to the beam in a sliding mode.
Compared with the prior art, the dry net cleaning device for the papermaking production line has the beneficial effects that:
1. through letting in high-pressure air from high-pressure air input hole, high-pressure air flows into the suction chamber through the air release clearance, forms the air amplifier, and high-pressure air adsorbs and draws intracavity wall upward movement, then produces the negative pressure zone in the center of suction chamber, therefore can discharge from the suction tube after the water smoke that will suck the cover below with the dirty water that returns to spatter.
2. The high-pressure cleaning spray heads form opposite impact; dirty water after the opposite flushing directly returns upwards and splashes to the suction cavity, can effectively suck water mist and dirty water, and guarantees the cleanness and the dryness of other paper making process environments around.
3. Can the high pressure cleaning shower nozzle of different nozzle sizes of easy to assemble through shower nozzle installation piece to the demand that needs different water velocity is adapted to, changes high pressure cleaning shower nozzle convenient and fast.
4. The drying net cleaning component moves above the drying net along the Y direction to clean the drying net completely, and corners and gaps of the drying net can be cleaned completely.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a structural diagram of a cleaning component of a drying net in embodiment 1 of the present invention;
FIG. 2 is a sectional view of embodiment 1 of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a perspective view of a suction hood according to embodiment 1 of the present invention;
FIG. 5 is a sectional view of an extraction hood according to embodiment 1 of the present invention;
FIG. 6 is a structural view of a gap adjusting bolt of embodiment 1;
FIG. 7 is a perspective view of a high pressure cleaning head according to embodiment 1 of the present invention;
FIG. 8 is a structural view of a head mounting piece in embodiment 1 of the present invention;
FIG. 9 is a front view of a cleaning apparatus for a drying net according to embodiment 1 of the present invention;
fig. 10 is a plan view of a cleaning apparatus for a drying net according to embodiment 1 of the present invention;
FIG. 11 is a drawing showing a constitution of a suction hood in embodiment 2 of the invention;
fig. 12 is a drawing showing the structure of a suction hood in embodiment 3 of the present invention.
In the figure, the device comprises a beam 1, a beam 2, a suction hood 21, a suction cavity 22, a conical boss 23, a high-pressure cavity 24, a high-pressure air input hole 25, a spray nozzle mounting inclined plane 26, a spray nozzle mounting hole 3, a suction pipe 4, a high-pressure water pipe 5, a high-pressure cleaning spray nozzle 51, a clamping groove 6, a gap adjusting bolt 61, a conical cavity 7, a spray nozzle mounting sheet 71, a bayonet 8, a dry net 9, an air release gap 11, a plane perpendicular to the central axis of the suction hood 12 and a flange.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", etc., refer to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.
Example 1
Referring to fig. 8 and 9, in the embodiment 1 of the cleaning assembly and the cleaning device for the drying wire of the paper making production line of the present invention, referring to fig. 1 to 10, the drying wire 8 moves in the X direction right below the suction hood 2, the beam 1 extending in the Y direction is arranged above the drying wire 8, and the cleaning assembly is slidably connected to the beam 1.
With reference to fig. 1-8, the cleaning assembly of the drying net of the present invention comprises a suction hood 2 and a suction pipe 3 connected to the suction hood 2; a suction cavity 21 is formed in the center of the suction hood 2, a conical boss 22 is arranged at the upper part of the suction hood 2, and a high-pressure cavity 23 is formed between the inner wall of the suction hood 2 and the conical boss 22; a gap adjusting bolt 6 is connected with the inner thread of the cavity at the upper part of the suction hood 2, and the lower part of the gap adjusting bolt 6 is provided with a conical cavity 61 matched with the conical boss 22; an air release gap 9 is formed between the conical boss 22 and the conical cavity 61; the suction cavity 21 penetrates through the conical boss 22 and the inside of the gap adjusting bolt 6; the high-pressure cavity 23 is communicated with the suction cavity 21 through the air release gap 9; the suction chamber 21 communicates with the suction tube 3; the side wall of the suction hood 2 is provided with a high-pressure air inlet hole 24 communicated with the high-pressure cavity 23; the lower part of the suction hood 2 is provided with a plurality of high-pressure cleaning nozzles 5 which are connected with high-pressure water pipes 4.
In the embodiment 1 of the invention, a plurality of high-pressure cleaning nozzles 5 are arranged on the same suction hood 2, so that the situation that a plurality of nozzles are arranged independently and are commonly used in the prior art are replaced, water is sprayed from a plurality of angles to clean the dry net 8 is realized, and the back-splashed dirty water and water mist are directly pumped away through the suction hood 2.
The present embodiment preferably has the central axes of the plurality of high pressure cleaning nozzles 5 intersecting the central axis of the suction hood 2 at a point, so that the high pressure water flows in multiple directions form opposite impacts, not only the drying net 8 is cleaned more thoroughly, but also the splashed water directly enters the suction hood 2 upwards.
The embodiment of the invention utilizes the principle of an air amplifier to form negative pressure in the suction cavity 21 to pump back splashed dirty water and water mist away. Specifically, high-pressure air is introduced into the high-pressure air inlet hole 24, the high-pressure air flows into the suction cavity 21 through the air release gap 9 to form an air amplifier, the high-pressure air is adsorbed on the inner wall of the suction cavity 21 to move upwards based on the wall attachment effect principle, and then a negative pressure area is generated in the center of the suction cavity 21, so that water mist below the suction hood 2 and dirty water splashed upwards are sucked in and then discharged from the suction pipe 3.
The gap adjusting bolt 6 of the embodiment of the invention adopts fine threads, and the size of the air release gap 9 can be adjusted by screwing the gap adjusting bolt 6, so that the size of the suction wind power is adjusted.
The embodiment 1 of the invention is provided with two high-pressure cleaning nozzles 5, the included angle of the projection of the central axes of the two high-pressure cleaning nozzles 5 on the plane 11 vertical to the central axis of the suction hood is 180 degrees, and the included angle of the central axis of the high-pressure cleaning nozzle 5 and the central axis of the suction hood 2 is preferably 45 degrees; thus, the two water flows form an angle of 45 degrees to flush the dry net 8, and the dirty matters in the dry net 8 can be effectively cleaned; and the two water flows form opposite flushing, so that little water mist is sprayed out in the horizontal direction, and most of flushed dirty water flows into the lower part of the dry net 8 or splashes back into the suction hood 2.
In this embodiment, the lower end of the suction pipe 3 is fixedly connected to the suction hood 2 via a flange 12, and the upper end of the suction pipe 3 is connected to a hose for discharging dirty water from the suction.
In order to conveniently and detachably mount the high-pressure cleaning nozzle 5, the embodiment of the invention further comprises a nozzle mounting sheet 7 for mounting the high-pressure cleaning nozzle 5 on the suction hood 2; the lower outer surface of the suction hood 2 has a nozzle mounting slope 25; the nozzle mounting inclined plane 25 is provided with a nozzle mounting hole 26 penetrating into the suction cavity 21; the outer surface of the high-pressure cleaning spray head 5 is provided with a clamping groove 51, and the spray head mounting sheet 7 is provided with a bayonet 71 clamped into the clamping groove 51 of the high-pressure cleaning spray head 5; the nozzle mounting plate 7 is fixedly mounted on the nozzle mounting inclined plane 25 through bolts; the high pressure cleaning nozzle 5 is installed in the nozzle installation hole 26. Can the different high pressure cleaning shower nozzle 5 of nozzle size of easy to assemble through shower nozzle installation piece 7 to the adaptation needs different water velocity's demand, because high pressure cleaning shower nozzle 5 will bear the high pressure of water, belong to the consumable article, often need change, utilize shower nozzle installation piece 7 installation high pressure cleaning shower nozzle 5 can very convenient and fast's dismouting.
Example 2
Referring to fig. 11, the embodiment of the present invention has three high pressure cleaning nozzles 5, and the included angles of the projection lines of the central axes of the adjacent high pressure cleaning nozzles 5 on the plane 11 perpendicular to the central axis of the suction hood are 90 °, 135 °, and 135 °, respectively. The water flow at three angles also forms opposite impact, and the drying net 8 is cleaned from different angles, belonging to a preferable high-pressure spray nozzle arrangement mode.
Example 3
Referring to fig. 12, the embodiment of the present invention has four high pressure cleaning heads 5, and the projection angles of the central axes of the adjacent high pressure cleaning heads 5 on the plane 11 perpendicular to the central axis of the suction hood 2 are all 90 °. The water flow at four angles forms the opposite flushing, the drying net 8 is cleaned from different angles, the high-pressure cleaning type water-jet head belongs to a preferable high-pressure nozzle setting mode, the central axis of each high-pressure cleaning nozzle 5 and the central axis of the suction hood 2 can be set to be 45 degrees, and the opposite flushing and flushing effects are better.
It should be understood that the above-described specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.
Claims (10)
1. The utility model provides a papermaking production line is with drying net washing subassembly which characterized in that: comprises a suction hood (2) and a suction pipe (3) connected to the suction hood (2); a suction cavity (21) is formed in the center of the suction hood (2), a conical boss (22) is arranged at the upper part of the suction hood (2), and a high-pressure cavity (23) is formed between the inner wall of the suction hood (2) and the conical boss (22); a gap adjusting bolt (6) is connected with the upper part of the suction hood (2) in a threaded manner, and a conical cavity (61) matched with the conical boss (22) is formed in the lower part of the gap adjusting bolt (6); an air release gap (9) is formed between the conical boss (22) and the conical cavity (61); the suction cavity (21) penetrates through the conical boss (22) and the inner part of the gap adjusting bolt (6); the high-pressure chamber (23) is communicated with the suction chamber (21) through an air release gap (9); the suction chamber (21) communicates with the suction tube (3); the side wall of the suction hood (2) is provided with a high-pressure air inlet hole (24) communicated with the high-pressure cavity (23); the lower part of the suction hood (2) is provided with a plurality of high-pressure cleaning spray heads (5).
2. The drying net cleaning assembly for the papermaking production line according to claim 1, wherein: the central axes of the plurality of high-pressure cleaning spray heads (5) and the central axis of the suction hood (2) intersect at a point.
3. The drying net cleaning assembly for the papermaking production line according to claim 2, wherein: the water outlet of the high-pressure cleaning spray head (5) extends into the suction cavity (21).
4. The drying net cleaning assembly for the papermaking production line according to claim 2, wherein: the number of the high-pressure cleaning spray heads (5) is two; the projection included angle of the central axes of the two high-pressure cleaning spray heads (5) on the plane (11) vertical to the central axis of the suction hood is 180 degrees.
5. The drying net cleaning assembly for the papermaking production line according to claim 2, wherein: the high-pressure cleaning nozzles (5) are three, and the included angles of the projections of the central axes of the adjacent high-pressure cleaning nozzles (5) on the plane (11) vertical to the central axis of the suction hood are respectively 90 degrees, 135 degrees and 135 degrees.
6. The drying net cleaning assembly for the papermaking production line according to claim 2, wherein: the number of the high-pressure cleaning spray heads (5) is four, and the included angles of the projections of the central axes of the adjacent high-pressure cleaning spray heads (5) on the plane (11) vertical to the central axis of the suction hood are all 90 degrees.
7. The drying net cleaning assembly for the papermaking production line according to claim 1, wherein: the lower end of the suction pipe (3) is fixedly connected with the suction hood (2) through a flange (12).
8. The drying net cleaning assembly for the papermaking production line according to claim 1, wherein: the upper end of the suction pipe (3) is connected with a hose for discharging the sucked dirty water and water mist.
9. The drying net cleaning assembly for the papermaking production line according to claim 1, wherein: the device also comprises a spray head mounting sheet (7) for mounting the high-pressure cleaning spray head (5) on the suction hood (2); the outer surface of the lower part of the suction hood (2) is provided with a spray head mounting inclined plane (25); the spray head mounting inclined plane (25) is provided with a spray head mounting hole (26) penetrating into the suction cavity (21); a clamping groove (51) is formed in the outer surface of the high-pressure cleaning spray head (5), and a bayonet (71) clamped into the clamping groove (51) of the high-pressure cleaning spray head (5) is formed in the spray head mounting sheet (7); the spray head mounting sheet (7) is fixedly mounted on the spray head mounting inclined plane (25) through a bolt; the high-pressure cleaning spray head (5) is arranged in the spray head mounting hole (26).
10. The utility model provides a papermaking production line is with drying net belt cleaning device which characterized in that: comprising a drying screen cleaning assembly according to any one of claims 1 to 9, wherein a drying screen (8) is moved in the X direction directly below the suction hood (2), a beam (1) extending in the Y direction is arranged above the drying screen (8), and the drying screen cleaning assembly is slidably connected to the beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288648.XA CN113818275B (en) | 2021-11-02 | 2021-11-02 | Papermaking production line is with drying net washing subassembly and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288648.XA CN113818275B (en) | 2021-11-02 | 2021-11-02 | Papermaking production line is with drying net washing subassembly and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113818275A true CN113818275A (en) | 2021-12-21 |
| CN113818275B CN113818275B (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111288648.XA Active CN113818275B (en) | 2021-11-02 | 2021-11-02 | Papermaking production line is with drying net washing subassembly and device |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29503752U1 (en) * | 1995-02-24 | 1995-04-27 | Voith Sulzer Papiermasch Gmbh | Cleaning device |
| CN1176674A (en) * | 1995-02-24 | 1998-03-18 | 沃伊斯·萨尔泽造纸机械股份公司 | Cleaning device |
| CN2353460Y (en) * | 1998-11-24 | 1999-12-15 | 江秋贵 | Pneumatic cleaning head |
| CN201427261Y (en) * | 2009-06-30 | 2010-03-24 | 北京北方红旗精密机械制造有限公司 | Vacuum generator |
| CN110185488A (en) * | 2019-04-29 | 2019-08-30 | 徐州吉安矿业科技有限公司 | A kind of dust-removing blower for mine |
| CN212898473U (en) * | 2020-05-22 | 2021-04-06 | 福建省华力勘测设计有限公司 | Jet suction joint for drilling |
-
2021
- 2021-11-02 CN CN202111288648.XA patent/CN113818275B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29503752U1 (en) * | 1995-02-24 | 1995-04-27 | Voith Sulzer Papiermasch Gmbh | Cleaning device |
| CN1176674A (en) * | 1995-02-24 | 1998-03-18 | 沃伊斯·萨尔泽造纸机械股份公司 | Cleaning device |
| CN2353460Y (en) * | 1998-11-24 | 1999-12-15 | 江秋贵 | Pneumatic cleaning head |
| CN201427261Y (en) * | 2009-06-30 | 2010-03-24 | 北京北方红旗精密机械制造有限公司 | Vacuum generator |
| CN110185488A (en) * | 2019-04-29 | 2019-08-30 | 徐州吉安矿业科技有限公司 | A kind of dust-removing blower for mine |
| CN212898473U (en) * | 2020-05-22 | 2021-04-06 | 福建省华力勘测设计有限公司 | Jet suction joint for drilling |
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| Publication number | Publication date |
|---|---|
| CN113818275B (en) | 2022-08-23 |
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