Side blowing device for surface core net water pan

Abstract

The utility model relates to a side blowing device for a surface core net water pan. The problem that in the prior art, accumulated water and accumulated materials on the side faces of a core layer water pan and a surface layer water pan are difficult to remove is solved. A surface layer water receiving disc is arranged on the lower side of the core layer, a suction assembly is arranged on one side of the core layer and the surface layer water receiving disc, an air guide pipe structure is arranged on the other side of the core layer and the surface layer water receiving disc, a rotary blowing assembly is arranged in the air guide pipe structure, one end of the rotary blowing assembly is connected with a blowing air supply mechanism, and the blowing air supply mechanism is connected with a front drying steam cover tail gas pipe. The water pan has the advantages that the problems of water accumulation and material accumulation on the side faces of the core layer water pan and the surface layer water pan are effectively solved, broken holes, paper breakage and broken hole degradation caused by falling of accumulated materials of the surface layer water pan are prevented, and the water pan is simple in structure and easy to machine and install.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, and particularly relates to a side air blowing device for a surface-core mesh water receiving tray. Background Art

[0002] When a triple-wire paper machine makes paper, after the core pulp is compounded with the bottom pulp, the surface pulp is then compounded on the core-bottom pulp. Since the water vapor in the pulp is relatively large, when the water vapor rises and encounters the core layer and the surface layer water receiving trays, it will condense into water droplets at the bottom and side of the core layer and the surface layer water receiving trays. The water vapor contains pulp. After a long time, the water droplets at the bottom and side of the core layer and the surface layer water receiving trays will become accumulated materials. When the accumulated materials become larger, they will fall under the action of gravity, and it is easy to cause holes and breaks in the paper web after falling, affecting the production quality of the paper. The existing paper machine design has a heating device at the bottom of the core layer and the surface layer water receiving trays or uses a spray cleaning device. Among them, the spray cleaning device cannot clean the bottom beam of the paper machine. This beam spans above the bottom paper web, and water vapor and fine fibers are easily attached to the surface of the beam, resulting in poor cleaning effect. In addition, although the heating device can avoid the accumulation of water vapor at the bottom of the core layer and the surface layer water receiving trays, there is no heating device on the side of the core layer and the surface layer water receiving trays, and the accumulation of materials on the side cannot be avoided, and the use effect is not good.

[0003] In order to solve the deficiencies of the existing technology, people have carried out long-term explorations and proposed various solutions. For example, a Chinese patent document discloses a structure for preventing pulp accumulation on the beam of a paper machine [CN202222623189.2], which includes adding a spray cleaning pipeline above the beam. When changing the roll, the beam is flushed. The spray cleaning beam is turned on to clean the fine fibers attached to the beam, avoiding paper breaks caused by their accumulation and slipping. Both the spray cleaning pipeline and the air blowing and drying pipeline can rotate around their respective axes to change the spray or air blowing direction, so as to increase the spray or air drying area, maximize the cleaning of the beam, and one side of the spray cleaning pipeline can clean the spray cleaning pipeline and the air blowing and drying pipeline on the other side, thus avoiding pulp accumulation on the newly added pipeline.

[0004] The above solution solves the problem that it is difficult to clean the bottom beam of the paper machine by the spray cleaning device in the existing technology to a certain extent, but this solution still has many deficiencies. For example: it cannot avoid the accumulation of materials on the side, and the use effect is not good. Summary of the Invention

[0005] The purpose of the utility model is to provide a side air blowing device for a surface-core mesh water receiving tray aiming at the above problems.

[0006] To achieve the above object, the utility model adopts the following technical solutions: a side air blowing device for the surface core network water receiving tray, including a core layer, a surface layer water receiving tray is provided below the core layer, a suction assembly is provided on one side of the core layer and the surface layer water receiving tray, and a duct structure is provided on the other side. A rotary air blowing assembly is provided in the duct structure, and one end of the rotary air blowing assembly is connected to an air blowing supply mechanism, and the air blowing supply mechanism is connected to the tail gas pipe of the front drying steam hood.

[0007] In the above-mentioned side air blowing device for the surface core network water receiving tray, the duct structure includes ducts arranged up and down on one side of the core layer and the surface layer water receiving tray. A number of strip-shaped air guiding slits are axially provided on the ducts, and the air guiding slits on the upper and lower ducts are respectively oriented towards the surface of the core layer and the surface layer water receiving tray. The spacing between the air guiding slits ranges from 4 to 6 mm.

[0008] In the above-mentioned side air blowing device for the surface core network water receiving tray, the rotary air blowing assembly includes at least three air ducts arranged in the duct. The air ducts are arranged in an annular shape, and both ends of the air ducts are respectively arranged in the inner rings of the rotary bearings on the inner wall of the duct. A rotary drive motor is provided at one end of the air duct, which can drive the inner ring of the rotary bearing to rotate, thereby driving the air duct to rotate and switch positions.

[0009] In the above-mentioned side air blowing device for the surface core network water receiving tray, strip-shaped exhaust gaps are axially provided on the air duct, and the air duct is divided into a cold air pipe, a hot air pipe and a steam pipe.

[0010] In the above-mentioned side air blowing device for the surface core network water receiving tray, the ends of the cold air pipe, the hot air pipe and the steam pipe close to the rotary drive motor are closed by a sealing cover body, and a hoop tightening linkage ring body is provided circumferentially.

[0011] In the above-mentioned side air blowing device for the surface core network water receiving tray, the air blowing supply mechanism includes a connecting sleeve provided at one end of the duct. One end of the connecting sleeve is respectively provided with a cold air supply pipe, a hot air supply pipe and a steam supply pipe. An annular positioning disc body is provided in the connecting sleeve, and a number of positioning ducts respectively connected to the cold air supply pipe, the hot air supply pipe and the steam supply pipe are provided in the annular positioning disc body.

[0012] In the above-mentioned side air blowing device for the surface core network water receiving tray, the positioning ducts are respectively connected to the cold air pipe, the hot air pipe and the steam pipe through corresponding flexible connecting pipe bodies, and opening and closing valves are provided on the cold air pipe, the hot air pipe and the steam pipe.

[0013] In the above-mentioned side air blowing device for the surface core network water receiving tray, the cold air supply pipes at the upper and lower ends are connected in series and connected to the cold air exhaust end of the tail gas pipe of the front drying steam hood. The hot air supply pipes at the upper and lower ends are connected in series and connected to the hot air exhaust end of the tail gas pipe of the front drying steam hood. The steam supply pipes at the upper and lower ends are connected in series and connected to the steam exhaust end of the tail gas pipe of the front drying steam hood.

[0014] In the above-mentioned side air blowing device for the core layer and surface layer water receiving trays, the suction assembly includes a suction pipe body. The suction pipe body is provided with axially arranged strip-shaped suction ports, and the suction pipes are arranged vertically. The strip-shaped suction ports on the suction pipes are respectively arranged facing the surface of the core layer and the surface layer water receiving trays.

[0015] In the above-mentioned side air blowing device for the core layer and surface layer water receiving trays, one end of the suction pipe body is provided with a negative pressure suction machine, and the other end of the suction pipe body is closed.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows: Suction assemblies and air guide pipe structures are respectively installed on the sides of the core layer and surface layer water receiving trays, completely eliminating the problems of water accumulation and material accumulation on the sides of the core layer and surface layer water receiving trays, and avoiding the hole punching and paper breakage and hole punching downgrading caused by the falling of the accumulated materials on the surface layer water receiving tray. Secondly, the structure is simple, easy to process and install. When connected to the hot tail gas pipe recovered by the front drying hood, no additional energy and power are required, and the purpose of removing water accumulation and material accumulation can be achieved by using the tail gas of the front drying, saving energy and having good use effects. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the schematic diagram of the layout positions of the suction assembly and the air guide pipe structure in the present utility model;

[0019] Figure 3 is the internal structural sectional view of the air guide pipe in the present utility model;

[0020] Figure 4 is the side structural schematic diagram of the present utility model;

[0021] Figure 5 is the internal structural cross-sectional view of the air guide pipe in the present utility model;

[0022] Figure 6 is Figure 5 the enlarged view of the structure at A in

[0023] Figure 7 is Figure 5 the enlarged view of the structure at B in

[0024] Figure 8 is the air guide pipe structure diagram of the present utility model;

[0025] Figure 9 is the structural schematic diagram of the suction pipe body in the present utility model;

[0026] In the figure: core layer 1, surface layer water receiving tray 2, suction assembly 3, suction pipe body 31, strip-shaped suction port 32, negative pressure suction machine 33, air duct structure 4, air duct 41, air guiding gap 42, rotary blowing assembly 5, air duct 51, rotary bearing 52, rotary driving motor 53, cold air pipe 511, hot air pipe 512, steam pipe 513, sealing cover body 514, tightening linkage ring body 515, blowing supply mechanism 6, connecting sleeve 61, cold air supply pipe 62, hot air supply pipe 63, steam supply pipe 64, annular positioning disc body 65, positioning duct 66, flexible connecting pipe body 67, opening and closing valve 68. Detailed implementation mode

[0027] The following further describes the present utility model in detail with reference to the accompanying drawings and specific implementation modes.

[0028] As Figures 1-9 shown, the side blowing device of the surface core net water receiving tray includes a core layer 1, a surface layer water receiving tray 2 is arranged below the core layer 1, a suction assembly 3 is arranged on one side of the core layer 1 and the surface layer water receiving tray 2, and an air duct structure 4 is arranged on the other side. A rotary blowing assembly 5 is arranged in the air duct structure 4, and one end of the rotary blowing assembly 5 is connected with a blowing supply mechanism 6, and the blowing supply mechanism 6 is connected with the tail gas pipe of the front drying steam hood.

[0029] Among them, the air duct structure 4 includes air ducts 41 arranged up and down on one side of the core layer 1 and the surface layer water receiving tray 2. A plurality of strip-shaped air guiding gaps 42 are axially arranged on the air duct 41, and the air guiding gaps 42 on the upper and lower air ducts 41 face the surface of the core layer 1 and the surface layer water receiving tray 2 respectively. The distance between the air guiding gaps 42 ranges from 4 to 6 mm.

[0030] Here, the distance between the air guiding gaps 42 is 5 mm. The upper and lower air guiding gaps 42 on the air duct 41 between the core layer 1 and the surface layer water receiving tray 2 face the bottom of the core layer 1 and the surface of the surface layer water receiving tray 2 respectively, and the middle air guiding gap 42 faces the space between the core layer 1 and the surface layer water receiving tray 2 to achieve a larger range of air guiding.

[0031] Obviously, the rotary blowing assembly 5 includes at least three air ducts 51 arranged in the air duct 41. The air ducts 51 are arranged in an annular shape, and both ends of the air duct 51 are respectively arranged in the inner ring of the rotary bearing 52 on the inner wall of the air duct 41. One end of the air duct 51 is provided with a rotary driving motor 53 that can drive the inner ring of the rotary bearing 52 to rotate, thereby driving the air duct 51 to rotate and switch positions.

[0032] According to the water accumulation and material accumulation conditions and temperature, use the rotary driving motor 53 to drive the cold air pipe 511, the hot air pipe 512 and the steam pipe 513 to rotate and switch positions, and select cold air blowing, hot air blowing and steam drying.

[0033] Further, an exhaust gap in the shape of a strip is axially provided on the air duct 51, and the air duct 51 is divided into a cold air duct 511, a hot air duct 512, and a steam duct 513.

[0034] Here, the air duct 51 is divided into a cold air duct 511, a hot air duct 512, and a steam duct 513. There is a heat insulation layer provided between them circumferentially to separate them and prevent heat conduction.

[0035] Furthermore, one end of the cold air duct 511, the hot air duct 512, and the steam duct 513 close to the rotary drive motor 53 is closed by a sealing cover body 514, and a hoop-tightening linkage ring body 515 is provided circumferentially.

[0036] The setting of the hoop-tightening linkage ring body 515 enables the cold air duct 511, the hot air duct 512, and the steam duct 513 to rotate and switch synchronously.

[0037] Specifically, the blowing supply mechanism 6 includes a connecting sleeve 61 provided at one end of the air guide duct 41. One end of the connecting sleeve 61 is respectively provided with a cold air supply pipe 62, a hot air supply pipe 63, and a steam supply pipe 64. An annular positioning disc body 65 is provided inside the connecting sleeve 61, and a number of positioning ducts 66 respectively connected to the cold air supply pipe 62, the hot air supply pipe 63, and the steam supply pipe 64 are provided inside the annular positioning disc body 65.

[0038] When the air duct 51 rotates, it does not affect the gas transmission of the flexible connecting pipe body 67. Using the flexible connecting pipe body 67 can prevent the twisting of the rotating pipe body from affecting the gas transmission.

[0039] More specifically, the positioning ducts 66 are respectively connected to the cold air duct 511, the hot air duct 512, and the steam duct 513 through corresponding flexible connecting pipe bodies 67, and opening and closing valves 68 are provided on the cold air duct 511, the hot air duct 512, and the steam duct 513.

[0040] When using one of them, the other two are closed.

[0041] In detail, the cold air supply pipes 62 at the upper and lower ends are connected in series and connected to the cold air exhaust end of the tail gas pipe of the front drying steam hood. The hot air supply pipes 63 at the upper and lower ends are connected in series and connected to the hot air exhaust end of the tail gas pipe of the front drying steam hood. The steam supply pipes 64 at the upper and lower ends are connected in series and connected to the steam exhaust end of the tail gas pipe of the front drying steam hood.

[0042] Preferably, the suction assembly 3 includes a suction pipe body 31. A strip-shaped suction opening 32 is axially provided on the suction pipe body 31, and the suction pipe is arranged vertically. The strip-shaped suction openings 32 on the suction pipe are respectively arranged facing the surface of the core layer 1 and the surface water receiving tray 2 of the surface layer.

[0043] The accumulated material after drying is sucked to the outside through the suction pipe body 31.

[0044] In addition, one end of the suction pipe body 31 is provided with a negative pressure suction machine 33, and the other end of the suction pipe body 31 is closed.

[0045] In summary, the principle of this embodiment is as follows: by respectively arranging a suction assembly 3 and a rotary blowing assembly 5 on both sides of the core layer 1 and the surface layer water receiving tray 2, switching the cold air pipe 511, the hot air pipe 512, and the steam pipe 513 for blowing treatment as needed, and sucking the dried accumulated material to the outside through the suction assembly 3, so as to timely remove the accumulated water and accumulated material on the core layer 1 and the surface layer water receiving tray 2.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0047] Although terms such as the core layer 1, the surface layer water receiving tray 2, the suction assembly 3, the suction pipe body 31, the strip-shaped suction port 32, the negative pressure suction machine 33, the air duct structure 4, the air duct 41, the air guide gap 42, the rotary blowing assembly 5, the air duct 51, the rotary bearing 52, the rotary drive motor 53, the cold air pipe 511, the hot air pipe 512, the steam pipe 513, the sealing cover body 514, the tightening linkage ring body 515, the blowing supply mechanism 6, the connecting sleeve 61, the cold air supply pipe 62, the hot air supply pipe 63, the steam supply pipe 64, the annular positioning disc body 65, the positioning duct 66, the flexible connecting pipe body 67, and the opening and closing valve 68 are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A side air blowing device for the surface core network water receiving tray, comprising a core layer (1), and a surface layer water receiving tray (2) is arranged below the core layer (1), characterized in that, On one side of the core layer (1) and the surface layer water receiving tray (2), there is a suction component (3), and on the other side, there is a duct structure (4). Inside the duct structure (4), there is a rotary blowing component (5), and one end of the rotary blowing component (5) is connected to a blowing supply mechanism (6). The blowing supply mechanism (6) is connected to the exhaust tail pipe of the pre-drying steam hood.

2. The side air blowing device for the surface core network water receiving tray according to claim 1, characterized in that, The duct structure (4) includes ducts (41) arranged vertically on one side of the core layer (1) and the surface layer water receiving tray (2). Axially on the duct (41), there are a number of strip-shaped air guiding slits (42). The air guiding slits (42) on the upper and lower ducts (41) are respectively oriented towards the surface of the core layer (1) and the surface layer water receiving tray (2). The spacing between the air guiding slits (42) ranges from 4 to 6 mm.

3. The side air blowing device for the surface core network water receiving tray according to claim 2, wherein The rotary blowing component (5) includes at least three air ducts (51) arranged inside the duct (41). The air ducts (51) are arranged in a ring shape, and both ends of the air duct (51) are respectively arranged in the inner rings of rotary bearings (52) on the inner wall of the duct (41). One end of the air duct (51) is provided with a rotary drive motor (53) that can drive the inner ring of the rotary bearing (52) to rotate, thereby driving the air duct (51) to rotate and switch positions.

4. The side air blowing device for the surface core network water receiving tray according to claim 3, characterized in that, Axially on the air duct (51), there are strip-shaped exhaust gaps. The air duct (51) is divided into a cold air duct (511), a hot air duct (512), and a steam duct (513).

5. The side air blowing device for the water receiving tray of the surface core network according to claim 4, characterized in that, One ends of the cold air duct (511), the hot air duct (512), and the steam duct (513) close to the rotary drive motor (53) are closed by a sealing cover body (514), and a tightening linkage ring body (515) is provided circumferentially.

6. The side air blowing device for the surface core network water receiving tray according to claim 5, characterized in that, The blowing supply mechanism (6) includes a connecting sleeve (61) arranged at one end of the duct (41). One end of the connecting sleeve (61) is respectively provided with a cold air supply pipe (62), a hot air supply pipe (63), and a steam supply pipe (64). Inside the connecting sleeve (61), there is an annular positioning disc body (65), and inside the annular positioning disc body (65), there are a number of positioning ducts (66) respectively connected to the cold air supply pipe (62), the hot air supply pipe (63), and the steam supply pipe (64).

7. The side air blowing device for the surface core network water receiving tray according to claim 6, characterized in that, The positioning ducts (66) are respectively connected to the cold air duct (511), the hot air duct (512), and the steam duct (513) through corresponding flexible connecting pipe bodies (67), and opening and closing valves (68) are provided on the cold air duct (511), the hot air duct (512), and the steam duct (513).

8. The side air blowing device for the surface core network water receiving tray according to claim 6, characterized in that, The cold air supply pipes (62) at the upper and lower ends are connected in series and connected to the cold air exhaust end of the exhaust tail pipe of the pre-drying steam hood. The hot air supply pipes (63) at the upper and lower ends are connected in series and connected to the hot air exhaust end of the exhaust tail pipe of the pre-drying steam hood. The steam supply pipes (64) at the upper and lower ends are connected in series and connected to the steam exhaust end of the exhaust tail pipe of the pre-drying steam hood.

9. The side air blowing device for the surface core network water receiving tray according to claim 1, characterized in that, The described suction assembly (3) includes a suction pipe body (31). An axially arranged strip-shaped suction opening (32) is provided on the suction pipe body (31). The suction pipes are arranged vertically. The strip-shaped suction openings (32) on the suction pipes are respectively arranged facing the surface of the core layer (1) and the surface layer water receiving tray (2).

10. The side air blowing device for the water receiving tray of the surface core network according to claim 9, wherein One end of the suction pipe body (31) is provided with a negative pressure suction machine (33), and the other end of the suction pipe body (31) is closed.

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