Water dilution device for headbox of long-fiber paper machine

Abstract

The utility model relates to the technical field of papermaking equipment, in particular to a dilution water device for a headbox of a long-fiber paper machine, which not only can discharge air in paper pulp to enable the paper pulp to be discharged more smoothly and uniformly, but also can stir the paper pulp and dilution water to accelerate dilution of the paper pulp and improve the working efficiency. Comprising an exhaust mechanism; the pulp conveying mechanism is installed on the exhaust mechanism and conveys paper pulp, the water conveying mechanism is installed on the pulp conveying mechanism and conveys dilution water, and the mixing mechanism is installed on the water conveying mechanism and stirs the paper pulp and the dilution water; the water spraying mechanism is installed on the mixing mechanism and conveys dilution water into the paper pulp.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to a dilution water device for a headbox of a long-fiber paper machine. Background Art

[0002] The headbox is a very important part of the base paper production process. Its main function is to provide a dispersed and uniform pulp flow to the mesh cage of the paper machine, and can determine the uniform distribution of the paper profile. Traditional headboxes usually add pulp and water into the headbox at the same time and homogenize and dilute them through the same slurry roller.

[0003] The existing headbox dilution water device, such as a pulp uniform dilution and discharging device disclosed in the utility model patent with application number 202320775546.9, has a main structure including a dilution water circulation water circuit and a sizing conical main pipe, a slurry flow filter box, a slurry water mixing box and a headbox arranged in sequence along the direction of sizing flow. The dilution water circulation water circuit includes a dilution water main pipe, and a number of dilution water valves are arranged at equal intervals on the dilution water main pipe, and the dilution water valves are connected to the slurry water mixing box; when in use, water is continuously supplied to the slurry water mixing box through the dilution circulation water circuit, and the dilution water in the dilution water main pipe is diverted at equal intervals by the dilution water valves, so that the dilution water is evenly supplied to the slurry water mixing box, and the slurry of equal pressure is diverted through the slurry flow filter box through the sizing conical main pipe and evenly enters the slurry water mixing box, so that the slurry and the dilution water are evenly mixed, and finally the diluted slurry is diverted and discharged through the headbox.

[0004] However, it is difficult to ensure the pressure in the existing headbox dilution water device. When the pressure is insufficient, air can easily enter, causing uneven pulp transportation. Moreover, most existing headbox dilution water devices rely on the natural mixing and dilution of water flow and pulp, which is slow. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a long fiber paper machine headbox dilution water device which can not only discharge the air in the pulp, making the pulp discharge smoother and more uniform, but also stir the pulp and dilution water, accelerate the dilution of the pulp, and improve work efficiency.

[0006] The utility model discloses a dilution water device for a headbox of a long-fiber paper machine, comprising an exhaust mechanism; a pulp conveying mechanism, a water conveying mechanism, a mixing mechanism and a plurality of water spraying mechanisms, wherein the pulp conveying mechanism is mounted on the exhaust mechanism and conveys pulp, the water conveying mechanism is mounted on the pulp conveying mechanism and conveys dilution water, the mixing mechanism is mounted on the water conveying mechanism and stirs the pulp and the dilution water, and the water spraying mechanism is mounted on the mixing mechanism and conveys the dilution water into the pulp; the pulp enters the pulp conveying mechanism through the exhaust mechanism, the exhaust mechanism discharges the air in the pulp, so that the pulp conveying mechanism discharges the pulp more evenly, and at the same time the water conveying mechanism conveys the dilution water to the plurality of water spraying mechanisms through the mixing mechanism, the plurality of water spraying mechanisms spray the dilution water into the pulp to dilute the pulp, and at the same time the water flow drives the mixing mechanism to rotate and stir the pulp, so that the pulp is diluted more evenly.

[0007] Preferably, the exhaust mechanism includes a U-shaped tube, a flange, a glass buffer tank and an exhaust valve. The U-shaped tube is installed on the working surface, the flange is installed on the U-shaped tube and communicates with the interior of the U-shaped tube, the bottom end of the glass buffer tank is communicated with the top end of the U-shaped tube, and the exhaust valve is installed on the glass buffer tank. The flange is connected to the pulp production pipeline by bolts, and the pulp is transported to the pulp delivery mechanism through the U-shaped tube. The air density in the pulp is small and enters the glass buffer tank and is discharged through the exhaust valve. At the same time, a certain amount of pulp is stored in the glass buffer tank, which can be replenished into the U-shaped tube when the pressure is low.

[0008] Preferably, the pulp delivery mechanism includes a mixing box, a pulp inlet main pipe, multiple groups of pulp delivery pipes, multiple groups of first nozzles and multiple groups of regulating valves. The mixing box is installed on the working surface, the pulp inlet main pipe is connected to the inside of the U-shaped pipe, the multiple groups of pulp delivery pipes are all installed on the mixing box and are all connected to the inside of the pulp inlet main pipe, the multiple groups of first nozzles are respectively installed on the multiple groups of pulp delivery pipes, and the multiple groups of regulating valves are respectively installed on the multiple groups of pulp delivery pipes; the U-shaped pipe delivers the pulp to the multiple groups of pulp delivery pipes through the pulp inlet main pipe, and the pulp pressure is kept the same by setting the pulp inlet main pipe. The staff adjusts the delivery volume in the pulp delivery pipe through the multiple groups of regulating valves, and the pulp is delivered to the mixing box through the multiple groups of first nozzles for dilution.

[0009] Preferably, the water delivery mechanism includes a support plate, a white water bucket, a water pump, a water suction pipe and a first water delivery pipe, the bottom end of the support plate is connected to the top of the mixing box, the bottom end of the white water bucket is connected to the top of the support plate, the bottom end of the water pump is connected to the top of the support plate, the water suction pipe is installed on the water pump and communicates with the inside of the white water bucket, and the first water delivery pipe is installed on the water pump; when the water pump is started, the water pump draws out the diluted water in the white water bucket through the water suction pipe, and then delivers the water to the mixing mechanism through the first water delivery pipe.

[0010] Preferably, the mixing mechanism includes a diverter box, multiple sets of rotating shafts, multiple sets of blades and multiple sets of stirring rods. The bottom end of the diverter box is connected to the top end of the support plate and is communicated with the inside of the first water pipe. The multiple sets of rotating shafts are rotatably installed in the diverter box, the multiple sets of blades are respectively installed on the multiple sets of rotating shafts, and the multiple sets of stirring rods are respectively installed on the multiple sets of rotating shafts; the first water pipe transports the dilution water into the diverter box, the water flow drives the multiple sets of blades to rotate, the multiple sets of blades drive the multiple sets of rotating shafts to rotate, the multiple sets of rotating shafts drive the multiple sets of stirring rods to rotate, and the multiple sets of stirring rods stir and mix the pulp and dilution water to accelerate the dilution of the pulp.

[0011] Preferably, the water spraying mechanism includes a second water pipe, a valve and a second nozzle. The second water pipe is installed on the diversion box and is connected to the inside of the diversion box. The valve is installed on the second water pipe. The second nozzle is installed on the second water pipe and is connected to the inside of the second water pipe. The dilution water in the diversion box is transported to the second nozzle through the second water pipe. The second nozzle sprays the dilution water into the mixing box to dilute the pulp. At the same time, the second nozzle flushes the first nozzle to avoid clogging of the first nozzle. The staff can adjust the water flow through the valve to control the dilution degree.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the pulp enters the pulp conveying mechanism through the exhaust mechanism, the exhaust mechanism discharges the air in the pulp, making the pulp conveying mechanism discharge the pulp more evenly, and at the same time the water conveying mechanism conveys the dilution water to the multiple groups of water spraying mechanisms through the mixing mechanism, and the multiple groups of water spraying mechanisms spray the dilution water into the pulp to dilute the pulp, and at the same time the water flow drives the mixing mechanism to rotate and stir the pulp, making the pulp diluted more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an axonometric structural diagram of the present utility model;

[0014] Figure 2 This is a partially enlarged isometric structural diagram of the exhaust mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-section axonometric structure of the slurry conveying mechanism and the water spraying mechanism of the utility model;

[0016] Figure 4 This is an axonometric structural diagram of the water delivery mechanism and the water spraying mechanism of the utility model;

[0017] Figure 5 It is a schematic diagram of the cross-section axonometric structure of the hybrid mechanism of the utility model.

[0018] Markings in the accompanying drawings: 01, exhaust mechanism; 11, U-shaped tube; 12, flange; 13, glass buffer tank; 14, exhaust valve; 02, slurry delivery mechanism; 21, mixing box; 22, slurry inlet main pipe; 23, slurry delivery pipe; 24, first nozzle; 25, regulating valve; 03, water delivery mechanism; 31, support plate; 32, white water bucket; 33, water pump; 34, water suction pipe; 35, first water delivery pipe; 04, mixing mechanism; 41, diversion box 42, rotating shaft; 43, blade; 44, stirring rod; 05, water spraying mechanism; 51, second water delivery pipe; 52, valve; 53, second nozzle. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0020] Example 1

[0021] The utility model discloses a dilution water device for a headbox of a long-fiber paper machine, comprising an exhaust mechanism 01; a pulp conveying mechanism 02, a water conveying mechanism 03, a mixing mechanism 04 and a plurality of water spraying mechanisms 05, wherein the pulp conveying mechanism 02 is mounted on the exhaust mechanism 01 and conveys pulp, the water conveying mechanism 03 is mounted on the pulp conveying mechanism 02 and conveys dilution water, the mixing mechanism 04 is mounted on the water conveying mechanism 03 and stirs the pulp and the dilution water, and the water spraying mechanism 05 is mounted on the mixing mechanism 04 and conveys the dilution water into the pulp; the exhaust mechanism 01; the pulp conveying mechanism 02; the water conveying mechanism 03; the dilution water; the mixing mechanism 04; the dilution water ... Mechanism 01 includes a U-shaped tube 11, a flange 12, a glass buffer tank 13 and an exhaust valve 14. The U-shaped tube 11 is installed on the working surface, the flange 12 is installed on the U-shaped tube 11 and is connected to the inside of the U-shaped tube 11, the bottom end of the glass buffer tank 13 is connected to the top end of the U-shaped tube 11, and the exhaust valve 14 is installed on the glass buffer tank 13; the slurry delivery mechanism 02 includes a mixing box 21, a slurry feed main pipe 22, multiple groups of slurry delivery pipes 23, multiple groups of first nozzles 24 and multiple groups of regulating valves 25. The mixing box 21 is installed on the working surface. On the surface, the slurry inlet main pipe 22 is connected to the inside of the U-shaped tube 11, multiple groups of slurry delivery pipes 23 are installed on the mixing box 21 and are connected to the inside of the slurry inlet main pipe 22, multiple groups of first nozzles 24 are respectively installed on the multiple groups of slurry delivery pipes 23, and multiple groups of regulating valves 25 are respectively installed on the multiple groups of slurry delivery pipes 23; the water delivery mechanism 03 includes a support plate 31, a white water bucket 32, a water pump 33, a water pumping pipe 34 and a first water delivery pipe 35, the bottom end of the support plate 31 is connected to the top of the mixing box 21, and the bottom end of the white water bucket 32 is connected to the bottom of the support plate 31. The top end is connected, the bottom end of the water pump 33 is connected to the top end of the support plate 31, the water pump 34 is installed on the water pump 33 and communicates with the inside of the white water bucket 32, and the first water pipe 35 is installed on the water pump 33; the water spraying mechanism 05 includes a second water pipe 51, a valve 52 and a second nozzle 53, the second water pipe 51 is installed on the diversion box 41 and communicates with the inside of the diversion box 41, the valve 52 is installed on the second water pipe 51, and the second nozzle 53 is installed on the second water pipe 51 and communicates with the inside of the second water pipe 51;When it is working, first, the flange 12 is connected to the pulp production pipeline with bolts, and the pulp is transported to the pulp conveying mechanism 02 through the U-shaped tube 11. The air density in the pulp is small, and it enters the glass buffer tank 13 and is discharged through the exhaust valve 14. At the same time, a certain amount of pulp is stored in the glass buffer tank 13. When the pressure is low, it can be replenished into the U-shaped tube 11. The U-shaped tube 11 conveys the pulp to multiple groups of pulp conveying pipes 23 through the pulp inlet main pipe 22. The pulp pressure is kept the same by setting the pulp inlet main pipe 22. The staff adjusts the conveying volume in the pulp conveying pipe 23 through multiple groups of regulating valves 25. The pulp is delivered to the mixing tank 21 for dilution via multiple sets of first nozzles 24. The water pump 33 is activated, pumping dilution water from the white water bucket 32 through the pumping pipe 34. The water is then delivered to the mixing mechanism 04 via the first water pipe 35. The dilution water in the mixing mechanism 04 is then delivered to the second nozzle 53 via the second water pipe 51. The second nozzle 53 sprays the dilution water into the mixing tank 21 to dilute the pulp. Simultaneously, the second nozzle 53 flushes the first nozzle 24 to prevent clogging. The operator can adjust the water flow rate and control the dilution rate using the valve 52.

[0022] Example 2

[0023] like Figures 1 to 5As shown, a dilution water device for a long fiber paper machine headbox of the present invention is based on Example 1; the mixing mechanism 04 includes a diverter box 41, multiple groups of rotating shafts 42, multiple groups of blades 43 and multiple groups of stirring rods 44. The bottom end of the diverter box 41 is connected to the top of the support plate 31 and is in communication with the interior of the first water pipe 35. The multiple groups of rotating shafts 42 are rotatably mounted in the diverter box 41, the multiple groups of blades 43 are respectively mounted on the multiple groups of rotating shafts 42, and the multiple groups of stirring rods 44 are respectively mounted on the multiple groups of rotating shafts 42; when it is working, first, the flange 12 is connected to the pulp production pipeline by bolts, and the pulp is transported to the pulp delivery mechanism 02 through the U-shaped tube 11. The air density in the pulp is small and enters the glass buffer tank 13 and is discharged through the exhaust valve 14. At the same time, a certain amount of pulp is stored in the glass buffer tank 13. When the pressure is low, it can be replenished into the U-shaped tube 11. The U-shaped tube 11 transports the pulp to the multiple groups of pulp delivery pipes 23 through the pulp inlet main pipe 22. The pulp pressure is kept the same by setting the pulp inlet main pipe 22. The staff adjusts the delivery volume in the pulp delivery pipe 23 through multiple sets of regulating valves 25. The pulp is delivered to the mixing box 21 for dilution through multiple sets of first nozzles 24. The water pump 33 is started. The water pump 33 extracts the dilution water in the white water bucket 32 through the suction pipe 34, and then delivers the water to the diversion box 41 through the first water pipe 35. The dilution water in the diversion box 41 is delivered to the second nozzle 53 through the second water pipe 51. The second nozzle 53 sprays the dilution water into the mixing box 21 to dilute the pulp. At the same time, the second nozzle 53 flushes the first nozzle 24 to avoid clogging of the first nozzle 24. The staff can adjust the water flow through the valve 52 to control the dilution degree. The water flow drives the multiple sets of blades 43 to rotate, and the multiple sets of blades 43 drive the multiple sets of rotating shafts 42 to rotate. The multiple sets of rotating shafts 42 drive the multiple sets of stirring rods 44 to rotate. The multiple sets of stirring rods 44 stir and mix the pulp and dilution water to accelerate the dilution of the pulp.

[0024] The water pump 33 of the present invention is purchased on the market, and technicians in this industry only need to install and operate it according to the accompanying instruction manual, without the need for technicians in this field to make creative efforts.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A dilution water device for a long fiber paper machine headbox, comprising an exhaust mechanism (01); characterized in that: The invention also includes a pulp conveying mechanism (02), a water conveying mechanism (03), a mixing mechanism (04) and a plurality of water spraying mechanisms (05). The pulp conveying mechanism (02) is installed on the exhaust mechanism (01) and conveys pulp. The water conveying mechanism (03) is installed on the pulp conveying mechanism (02) and conveys dilution water. The mixing mechanism (04) is installed on the water conveying mechanism (03) and stirs the pulp and the dilution water. The water spraying mechanism (05) is installed on the mixing mechanism (04) and conveys the dilution water into the pulp.

2. The dilution water device for a long fiber paper machine headbox according to claim 1, characterized in that: The exhaust mechanism (01) comprises a U-shaped tube (11), a flange (12), a glass buffer tank (13) and an exhaust valve (14). The U-shaped tube (11) is mounted on a working surface. The flange (12) is mounted on the U-shaped tube (11) and communicates with the interior of the U-shaped tube (11). The bottom end of the glass buffer tank (13) is communicated with the interior of the top end of the U-shaped tube (11). The exhaust valve (14) is mounted on the glass buffer tank (13).

3. The dilution water device for a long fiber paper machine headbox according to claim 2, characterized in that: The slurry delivery mechanism (02) comprises a mixing box (21), a slurry inlet main pipe (22), a plurality of slurry delivery pipes (23), a plurality of first nozzles (24) and a plurality of regulating valves (25). The mixing box (21) is installed on the working surface. The slurry inlet main pipe (22) is connected to the interior of the U-shaped pipe (11). The plurality of slurry delivery pipes (23) are all installed on the mixing box (21) and are all connected to the interior of the slurry inlet main pipe (22). The plurality of first nozzles (24) are respectively installed on the plurality of slurry delivery pipes (23). The plurality of regulating valves (25) are respectively installed on the plurality of slurry delivery pipes (23).

4. The dilution water device for a long fiber paper machine headbox according to claim 3, characterized in that: The water delivery mechanism (03) comprises a support plate (31), a white water bucket (32), a water pump (33), a water extraction pipe (34) and a first water delivery pipe (35). The bottom end of the support plate (31) is connected to the top end of the mixing box (21), the bottom end of the white water bucket (32) is connected to the top end of the support plate (31), the bottom end of the water pump (33) is connected to the top end of the support plate (31), the water extraction pipe (34) is installed on the water pump (33) and communicates with the inside of the white water bucket (32), and the first water delivery pipe (35) is installed on the water pump (33).

5. The dilution water device for a long fiber paper machine headbox according to claim 4, characterized in that: The mixing mechanism (04) includes a diverter box (41), multiple groups of rotating shafts (42), multiple groups of blades (43) and multiple groups of stirring rods (44). The bottom end of the diverter box (41) is connected to the top end of the support plate (31) and is communicated with the inside of the first water pipe (35). The multiple groups of rotating shafts (42) are all rotatably installed in the diverter box (41). The multiple groups of blades (43) are respectively installed on the multiple groups of rotating shafts (42). The multiple groups of stirring rods (44) are respectively installed on the multiple groups of rotating shafts (42).

6. The dilution water device for a long fiber paper machine headbox according to claim 5, characterized in that: The water spraying mechanism (05) comprises a second water pipe (51), a valve (52) and a second spray head (53); the second water pipe (51) is mounted on the diversion box (41) and communicates with the interior of the diversion box (41); the valve (52) is mounted on the second water pipe (51); and the second spray head (53) is mounted on the second water pipe (51) and communicates with the interior of the second water pipe (51).

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