Dilution water adding device of headbox

Abstract

The utility model discloses a dilution water adding device of a headbox, which comprises a mixing tank, the top surface of the mixing tank is fixedly connected with a tank cover, the inner wall of the tank cover is rotatably connected with a fixed pipe, the inner wall of the fixed pipe is fixedly connected with a stirring pipe, and paper pulp is injected into the mixing tank through a feeding and discharging mechanism. A discharging end of a feeding and discharging mechanism is connected with a feeding end of a headbox, a liquid inlet end of a rotary adding mechanism is connected with dilution water, a first electromagnetic valve is started, the rotary adding mechanism is started to suck the dilution water and spray the dilution water into paper pulp through a fixing pipe, a stirring pipe and a spray head, and a driving assembly is started to drive the fixing pipe, the stirring pipe and the spray head to rotate to add the dilution water. Meanwhile, the paper pulp and the dilution water are stirred to be rapidly mixed, the paper pulp can be fed into the headbox by starting the feeding and discharging mechanism, the purpose of conveniently and rapidly mixing and diluting the dilution water and the paper pulp is achieved, and the problem that due to the fact that the thick paper pulp cannot be rapidly mixed with the dilution water, the adjustment and control efficiency of the paper pulp concentration is greatly reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of headboxes, in particular to a dilution water adding device for a headbox. Background Art

[0002] The headbox is a key part of modern paper machines. Its structure and performance play a decisive role in the formation of paper sheets and the quality of paper. It can effectively disperse fibers. High-turbulence headboxes can generate high-intensity micro-turbulence, which can effectively disperse fibers, prevent fiber precipitation and re-flocculation, and effectively improve the strength of paper sheets.

[0003] When adding pulp to the headbox, it is necessary to add dilution water to the pulp according to the production requirements of the paper to control the pulp concentration. However, the existing dilution water adding devices currently have a single use effect, and most of them can only perform water adding work. The pulp is usually thicker, and the dilution water is difficult to mix quickly with the pulp after being added into the pulp, which greatly reduces the efficiency of regulating and controlling the pulp concentration. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a dilution water adding device for a headbox, which is used to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dilution water adding device for a flow box comprises a mixing tank, wherein the top surface of the mixing tank is fixedly connected to a tank cover, the inner wall of the tank cover is rotatably connected to a fixed pipe, the inner wall of the fixed pipe is fixedly connected to a stirring pipe, the liquid outlet end of the stirring pipe is fixedly connected to a nozzle, the inner wall of the fixed pipe is fixedly connected to a flow sensor, the inner wall of the fixed pipe is fixedly connected to a first solenoid valve, a rotating adding mechanism is arranged on the surface of the fixed pipe, a driving assembly is arranged on the top surface of the tank cover, a material feeding and discharging mechanism is arranged inside the tank cover, and a supporting assembly is arranged on the surface of the mixing tank.

[0007] Preferably, the rotary adding mechanism consists of a rotary joint, a suction pipe and a water pump, the inner wall of the rotary joint is rotatably connected to the surface of the fixed pipe, the liquid outlet end of the suction pipe is fixedly connected to the inner wall of the rotary joint, the water pump is fixedly connected to the inner wall of the suction pipe, and the bottom surface of the water pump is fixedly connected to the top surface of the tank cover.

[0008] Preferably, the driving assembly consists of a bracket, a servo motor, a driving wheel, a transmission belt and a driven wheel, the bracket is fixedly connected to the top surface of the tank cover, the servo motor is fixedly connected to the inner wall of the bracket, the driving wheel is fixedly connected to the output end of the servo motor, the transmission belt is meshed with the outer wall of the driving wheel, the inner wall of the driven wheel is fixedly connected to the surface of the fixed tube, and the outer wall of the driven wheel is meshed with the transmission belt.

[0009] Preferably, the feed and discharge mechanism consists of a feed pipe, a discharge pipe and a second solenoid valve, the feed pipe is fixedly connected to the inner wall of the tank cover, the discharge pipe is fixedly connected to the inner wall of the mixing tank, and the second solenoid valve is fixedly connected to the inner wall of the discharge pipe.

[0010] Preferably, the support assembly consists of a fixing ring and a support column, the fixing ring is fixedly connected to the surface of the mixing tank, the support column is fixedly connected to the bottom surface of the fixing ring, and the support column is fixedly connected to the surface of the mixing tank.

[0011] Preferably, the fixing tube is cylindrical and is made of stainless steel.

[0012] Preferably, there are multiple stirring tubes, and all of the stirring tubes are located inside the fixed tube.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the dilution water adding device of the headbox injects the pulp into the mixing tank through the inlet and outlet mechanism, connects the outlet end of the inlet and outlet mechanism with the feed end of the headbox, connects the liquid inlet end of the rotating adding mechanism with the dilution water, opens the first solenoid valve, starts the rotating adding mechanism to pump the dilution water through the fixed pipe, the stirring pipe and the nozzle to spray into the pulp, starts the driving assembly to drive the fixed pipe, the stirring pipe and the nozzle to rotate to add the dilution water, and stirs the pulp and the dilution water to mix quickly at the same time, and opens the inlet and outlet mechanism to send the pulp into the headbox; the goal of facilitating the rapid mixing and dilution of the dilution water and the pulp is achieved, and the problem of greatly reduced efficiency in regulating and controlling the pulp concentration due to the inability to quickly mix the thick pulp with the dilution water is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the structural survey drawing of the utility model;

[0015] Figure 2 This is an enlarged view of the structure A of the utility model;

[0016] Figure 3 This is a front cross-sectional view of the structure of the utility model;

[0017] Figure 4 This is an enlarged view of the structure B of the utility model.

[0018] In the figure: 1. mixing tank; 2. tank cover; 3. fixed pipe; 4. stirring pipe; 5. nozzle; 6. flow sensor; 7. first solenoid valve; 8. rotary joint; 9. suction pipe; 10. water pump; 11. bracket; 12. servo motor; 13. driving wheel; 14. transmission belt; 15. driven wheel; 16. feed pipe; 17. discharge pipe; 18. second solenoid valve; 19. fixed ring; 20. support column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-4 A dilution water adding device for a headbox comprises a mixing tank 1, a tank cover 2 is fixedly connected to the top surface of the mixing tank 1, a fixed pipe 3 is rotatably connected to the inner wall of the tank cover 2, the fixed pipe 3 is cylindrical, and the fixed pipe 3 is made of stainless steel. The fixed pipe 3 made of stainless steel has higher strength, is not easy to deform, rust or damage, and is more durable. A stirring pipe 4 is fixedly connected to the inner wall of the fixed pipe 3. There are multiple stirring pipes 4, and the multiple stirring pipes 4 are all located inside the fixed pipe 3, which are used to transport and stir the dilution water, thereby improving the adding efficiency and mixing efficiency of the dilution water. A nozzle 5 is fixedly connected to the liquid outlet end of the stirring pipe 4, and a flow sensor 6 is fixedly connected to the inner wall of the fixed pipe 3. A first solenoid valve 7 is fixedly connected to the inner wall of the tube 3, and a rotary adding mechanism is arranged on the surface of the fixed tube 3. The rotary adding mechanism consists of a rotary joint 8, a suction tube 9 and a water pump 10. The inner wall of the rotary joint 8 is rotatably connected to the surface of the fixed tube 3, the liquid outlet end of the suction tube 9 is fixedly connected to the inner wall of the rotary joint 8, the water pump 10 is fixedly connected to the inner wall of the suction tube 9, and the bottom surface of the water pump 10 is fixedly connected to the top surface of the tank cover 2, which is used to suck dilution water for addition, facilitates the rotation of the fixed tube 3 to carry out water delivery, and improves the addition range of dilution water. A driving assembly is arranged on the top surface of the tank cover 2, a material feeding and discharging mechanism is arranged inside the tank cover 2, and a supporting assembly is arranged on the surface of the mixing tank 1.

[0021] Specifically, the driving assembly consists of a bracket 11, a servo motor 12, a driving wheel 13, a transmission belt 14 and a driven wheel 15. The bracket 11 is fixedly connected to the top surface of the tank cover 2, the servo motor 12 is fixedly connected to the inner wall of the bracket 11, the driving wheel 13 is fixedly connected to the output end of the servo motor 12, the transmission belt 14 is meshed with the outer wall of the driving wheel 13, the inner wall of the driven wheel 15 is fixedly connected to the surface of the fixed tube 3, and the outer wall of the driven wheel 15 is meshed with the transmission belt 14, which is used to drive the fixed tube 3 and the stirring tube 4 to rotate, thereby improving the addition and mixing efficiency of the dilution water.

[0022] Specifically, the feed and discharge mechanism consists of a feed pipe 16, a discharge pipe 17 and a second solenoid valve 18. The feed pipe 16 is fixedly connected to the inner wall of the tank cover 2, the discharge pipe 17 is fixedly connected to the inner wall of the mixing tank 1, and the second solenoid valve 18 is fixedly connected to the inner wall of the discharge pipe 17, which is used to add and discharge pulp to facilitate the transportation of pulp.

[0023] Specifically, the support assembly consists of a fixing ring 19 and a support column 20. The fixing ring 19 is fixedly connected to the surface of the mixing tank 1, the support column 20 is fixedly connected to the bottom surface of the fixing ring 19, and the support column 20 is fixedly connected to the surface of the mixing tank 1, so as to support and fix the mixing tank 1, thereby improving the stability of the mixing tank 1 during use.

[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0025] When in use: first, inject the pulp into the mixing tank 1 through the feed pipe 16, connect the discharge end of the discharge pipe 17 to the feed end of the headbox, connect the liquid inlet end of the suction pipe 9 to the dilution water, open the first solenoid valve 7, start the water pump 10 to suck the dilution water into the fixed pipe 3 through the suction pipe 9 and the rotary joint 8, detect the dilution water flow rate through the flow sensor 6, and control the amount of dilution water added. The dilution water enters the stirring pipe 4 through the fixed pipe 3 and is sprayed into the pulp by the nozzle 5. At the same time, start the servo motor 12 to drive the driving wheel 13 and the transmission belt 14 to rotate. Through the engagement of the transmission belt 14 and the driven wheel 15, the fixed pipe 3 is driven to rotate along the inner wall of the tank cover 2. The rotation of the fixed pipe 3 drives the stirring pipe 4 and the nozzle 5 to rotate, and the dilution water can be rotated to add. At the same time, through the rotation of the stirring pipe 4, the pulp and the dilution water can be quickly stirred and mixed to control the pulp concentration. After the mixing is completed, open the second solenoid valve 18 to send the pulp into the headbox through the discharge pipe 17.

[0026] In summary, the dilution water adding device of the headbox injects the pulp into the mixing tank 1 through the inlet and outlet mechanism, connects the outlet end of the inlet and outlet mechanism with the feed end of the headbox, connects the liquid inlet end of the rotating adding mechanism with the dilution water, opens the first solenoid valve 7, starts the rotating adding mechanism to pump the dilution water through the fixed pipe 3, the stirring pipe 4 and the nozzle 5 to spray into the pulp, starts the driving component to drive the fixed pipe 3, the stirring pipe 4 and the nozzle 5 to rotate to add the dilution water, and stirs the pulp and the dilution water for rapid mixing at the same time, and the pulp can be sent into the headbox by opening the inlet and outlet mechanism, thereby achieving the goal of facilitating the rapid mixing and dilution of the dilution water and the pulp, avoiding the problem that the pulp is too thick to be quickly mixed with the dilution water, thereby greatly reducing the efficiency of regulating and controlling the pulp concentration, and is used to solve the problems raised in the above-mentioned background technology.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dilution water adding device for a headbox, comprising a mixing tank (1), characterized in that: The top surface of the mixing tank (1) is fixedly connected to a tank cover (2), the inner wall of the tank cover (2) is rotatably connected to a fixed pipe (3), the inner wall of the fixed pipe (3) is fixedly connected to a stirring pipe (4), the liquid outlet end of the stirring pipe (4) is fixedly connected to a nozzle (5), the inner wall of the fixed pipe (3) is fixedly connected to a flow sensor (6), the inner wall of the fixed pipe (3) is fixedly connected to a first solenoid valve (7), the surface of the fixed pipe (3) is provided with a rotating adding mechanism, the top surface of the tank cover (2) is provided with a driving assembly, the interior of the tank cover (2) is provided with a material feeding and discharging mechanism, and the surface of the mixing tank (1) is provided with a supporting assembly.

2. The dilution water adding device of the headbox according to claim 1, characterized in that: The rotary adding mechanism is composed of a rotary joint (8), a suction pipe (9) and a water pump (10); the inner wall of the rotary joint (8) is rotatably connected to the surface of the fixed pipe (3); the liquid outlet end of the suction pipe (9) is fixedly connected to the inner wall of the rotary joint (8); the water pump (10) is fixedly connected to the inner wall of the suction pipe (9); and the bottom surface of the water pump (10) is fixedly connected to the top surface of the tank cover (2).

3. The dilution water adding device of the headbox according to claim 1, characterized in that: The driving assembly is composed of a bracket (11), a servo motor (12), a driving wheel (13), a transmission belt (14) and a driven wheel (15); the bracket (11) is fixedly connected to the top surface of the tank cover (2); the servo motor (12) is fixedly connected to the inner wall of the bracket (11); the driving wheel (13) is fixedly connected to the output end of the servo motor (12); the transmission belt (14) is meshed with the outer wall of the driving wheel (13); the inner wall of the driven wheel (15) is fixedly connected to the surface of the fixed tube (3); and the outer wall of the driven wheel (15) is meshed with the transmission belt (14).

4. The dilution water adding device of the headbox according to claim 1, characterized in that: The feed and discharge mechanism is composed of a feed pipe (16), a discharge pipe (17) and a second solenoid valve (18); the feed pipe (16) is fixedly connected to the inner wall of the tank cover (2); the discharge pipe (17) is fixedly connected to the inner wall of the mixing tank (1); and the second solenoid valve (18) is fixedly connected to the inner wall of the discharge pipe (17).

5. The dilution water adding device of the headbox according to claim 1, characterized in that: The support assembly consists of a fixing ring (19) and a support column (20); the fixing ring (19) is fixedly connected to the surface of the mixing tank (1); the support column (20) is fixedly connected to the bottom surface of the fixing ring (19); and the support column (20) is fixedly connected to the surface of the mixing tank (1).

6. The dilution water adding device of the headbox according to claim 1, characterized in that: The fixing tube (3) is cylindrical in shape and is made of stainless steel.

7. The dilution water adding device of the headbox according to claim 1, characterized in that: There are multiple stirring tubes (4), and the multiple stirring tubes (4) are all located inside the fixed tube (3).

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