Online cleaning device for headbox

Abstract

The utility model discloses an on-line cleaning device for a headbox, which belongs to the technical field of headbox cleaning, solves the problem that a diffusion pipe of an existing device needs to be detached to clean the headbox, and comprises the headbox, a reducing diffusion pipe and a conical pulp distributor are arranged on the headbox, a guide sleeve is arranged in the conical pulp distributor, and the conical pulp distributor is connected with the reducing diffusion pipe. A second L-shaped plate is detachably installed on the right side wall of the headbox through a bolt, a flushing assembly and a water supply assembly for providing a water source for the flushing assembly are arranged on the second L-shaped plate, and by arranging an electric telescopic rod, a motor and other components, a flushing pipe can be kept in a rotating state in the process of moving into a variable-diameter diffusion pipe; and then water sprayed out of the water outlet holes comprehensively cleans the inner wall of the variable-diameter diffusion pipe, sanitary dead corners are avoided, the purpose of conveniently cleaning the variable-diameter diffusion pipe is achieved, the variable-diameter diffusion pipe does not need to be disassembled, use is easy and convenient, and the cleaning time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flow box cleaning technical field, concretely is a flow box on -line cleaning device. BACKGROUND

[0002] The flow box is the key equipment in papermaking process, and the flow box comprises a conical pulp distributor, a guide sleeve and a variable-diameter diffusion pipe.

[0003] In some special paper production in the papermaking industry, the ratio of long fibers is very high, and the long fibers are easy to hang pulp. The design and manufacture of the flow box and the flow feeding system have new requirements. In order to reduce the occurrence of hanging pulp, higher roughness requirements are proposed for each flow surface of the flow feeding system. Even so, it cannot prevent the occurrence of hanging pulp. The pulp mass when the hanging pulp falls off affects the paper quality. At this time, the flow feeding system needs to be cleaned, which causes the paper machine to be unable to produce according to the plan, the disassembly and assembly of the equipment are labor-intensive and time-consuming.

[0004] Through observation of the hanging pulp condition and the cleaning operation process, it is found that the hanging pulp of the flow box all appears on the inner wall of the diffusion pipe.

[0005] Therefore, we propose a flow box on-line cleaning device, which can provide help when cleaning the flow box and reduce the disassembly and cleaning time. CONTENT OF THE UTILITY MODEL

[0006] In view of the deficiency of prior art, the utility model provides a flow box on-line cleaning device, which solves the problem that the existing device needs to disassemble the diffusion pipe for cleaning.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme: a flow box on-line cleaning device, comprising a flow box, a variable-diameter diffusion pipe and a conical pulp distributor are arranged on the flow box, a guide sleeve is arranged in the conical pulp distributor;

[0008] The right side wall of the flow box is detachably installed with a second L-shaped plate through bolts, and the second L-shaped plate is provided with a flushing assembly and a water supply assembly for providing water source for the flushing assembly;

[0009] The flushing assembly includes a first mounting plate fixedly installed on the left side of the top surface of the second L-shaped plate. A circular hole is provided in the middle of the side wall of the first mounting plate. An annular turntable is rotatably fitted inside the circular hole via a bearing ring. An annular groove is provided on the side of the annular turntable away from the headbox. A toothed block distributed in a circular array is fixedly installed on the arc surface of the inner ring of the annular groove. A drive gear that meshes with the toothed block is provided inside the annular groove. The drive gear is fixedly installed on the output end of the motor. Symmetrically distributed slots are provided on the inner wall of the annular turntable. A flushing pipe coaxially arranged with a variable diameter diffuser is movably fitted on the inner ring of the annular turntable. An electric telescopic rod is provided on the outer surface of the flushing pipe. The flushing pipe is hollow inside. A uniformly distributed water outlet hole is provided on the arc surface of the flushing pipe near the headbox. A connection hole is provided in the middle of the side of the flushing pipe away from the headbox.

[0010] Preferably, a retaining plate is fixedly installed on the outer surface of the flushing pipe and is movably fitted inside the retaining groove. Both ends of the flushing pipe are fixedly fitted with annular plates. Both ends of the retaining plate are respectively fixedly installed on the side wall of the annular plate on the same side. The retaining plate can limit and fix the flushing pipe inside the annular turntable, so that the flushing pipe can rotate together with the annular turntable.

[0011] Preferably, the electric telescopic rod is fixedly installed on the side wall of the first mounting plate near the headbox, and the output end of the electric telescopic rod is fixedly installed on the side wall of the annular plate near the headbox. The electric telescopic rod can push the annular plate and the flushing pipe to move along the inner wall of the annular turntable, thereby causing the flushing pipe to move into the variable diameter diffuser.

[0012] Preferably, the motor is fixedly mounted on the side wall of the first L-shaped plate, which is fixedly mounted on the side wall of the first mounting plate. The first L-shaped plate facilitates the installation of the motor, which drives the drive gear to rotate. The drive gear meshes with the gear block, thereby driving the annular turntable and the flushing pipe to rotate together.

[0013] Preferably, the water supply assembly includes a steel pipe movably fitted inside the connection hole. An annular limiting plate is rotatably fitted on the outer surface of one end of the steel pipe located inside the flushing pipe via a bearing ring. An annular sealing ring is adhered to the outer surface of the annular limiting plate. The diameter of the annular limiting plate matches the inner diameter of the flushing pipe. The annular limiting plate can prevent the flushing pipe from detaching from the water inlet pipe and can increase the sealing performance of the connection between the flushing pipe and the steel pipe.

[0014] Preferably, a second mounting plate is fixedly installed on the right side of the top surface of the second L-shaped plate, and one end of the steel pipe located outside the flushing pipe is fixedly fitted inside the second mounting plate. The end of the steel pipe away from the flushing pipe is connected to a conveying pipe through a flange, and the bottom end of the conveying pipe is fixedly connected to the output end of the water pump. The second mounting plate facilitates the limiting and fixing of the steel pipe.

[0015] Preferably, the water pump is fixedly installed on the side wall of the second L-shaped plate, and the input end of the water pump is fixedly connected to an inlet pipe that is connected to an external water source. The water pump delivers the external water source to the delivery pipe and the steel pipe, and then the water in the steel pipe enters the interior of the flushing pipe and is finally sprayed out through the outlet hole.

[0016] This invention provides an online headbox cleaning device. It has the following advantages:

[0017] 1. This headbox online cleaning device, through the setting of components such as electric telescopic rod and motor, can keep the flushing pipe rotating as it moves into the variable diameter diffuser, thereby allowing the water sprayed from the outlet to thoroughly clean the inner wall of the variable diameter diffuser, avoiding the presence of sanitary dead corners, and achieving the purpose of facilitating the cleaning of the variable diameter diffuser without disassembling it. It is simple and convenient to use, saves cleaning time, and solves the problem of existing devices requiring the disassembly of the diffuser for cleaning.

[0018] 2. This headbox online cleaning device uses a water pump to deliver external water to the delivery pipe and steel pipe. Then, the water in the steel pipe enters the interior of the flushing pipe and is finally sprayed out through the water outlet. The annular limiting plate can prevent the flushing pipe from detaching from the water inlet pipe. The annular limiting plate is equipped with an annular sealing ring, which can increase the sealing of the connection between the flushing pipe and the steel pipe. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the flushing assembly and water supply assembly of this utility model;

[0021] Figure 3 This is a side view of the flushing assembly and water supply assembly of this utility model.

[0022] Figure 4 This is a schematic diagram of the flushing pipe structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the annular turntable structure of this utility model;

[0024] Figure 6This is a cross-sectional view of the flushing pipe and steel pipe of this utility model;

[0025] Figure 7 This is a schematic diagram of the water supply component structure of this utility model.

[0026] In the diagram: 1. Flushing assembly; 11. First mounting plate; 12. Circular hole; 13. Annular turntable; 131. Annular groove; 132. Tooth block; 133. Slot; 14. First L-shaped plate; 15. Motor; 16. Flushing pipe; 161. Water outlet; 162. Connecting hole; 17. Card plate; 171. Annular plate; 18. Electric telescopic rod; 2. Water supply assembly; 21. Water pump; 22. Delivery pipe; 23. Second mounting plate; 24. Steel pipe; 25. Annular limiting plate; 26. Water inlet pipe; 3. Headbox; 31. Conical distributor; 311. Guide sleeve; 32. Variable diameter diffuser; 4. Second L-shaped plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] like Figures 1-7As shown: The headbox 3 includes a headbox 3, on which a variable-diameter diffuser 32 and a conical distributor 31 are installed. A guide sleeve 311 is installed in the conical distributor 31. A second L-shaped plate 4 is detachably mounted on the right side wall of the headbox 3 via bolts. A flushing assembly 1 and a water supply assembly 2 providing water to the flushing assembly 1 are installed on the second L-shaped plate 4. The flushing assembly 1 includes a first mounting plate 11 fixedly installed on the left side of the top surface of the second L-shaped plate 4. A circular hole 12 is opened in the middle of the side wall of the first mounting plate 11. An annular turntable 13 is rotatably fitted inside the circular hole 12 via a bearing ring. The annular turntable 13 is located away from the headbox. An annular groove 131 is provided on one side of the headbox 3. A toothed block 132 arranged in a circular array is fixedly installed on the inner arc surface of the annular groove 131. A drive gear meshing with the toothed block 132 is provided inside the annular groove 131. The drive gear is fixedly installed on the output end of the motor 15. Symmetrically distributed slots 133 are provided on the inner wall of the annular turntable 13. A flushing pipe 16, coaxially arranged with the variable diameter diffuser tube 32, is movably fitted on the inner ring of the annular turntable 13. An electric telescopic rod 18 is provided on the outer surface of the flushing pipe 16. The flushing pipe 16 is hollow inside, and the end of the flushing pipe 16 closest to the headbox 3 is... The arc surface of the flushing pipe 16 has evenly distributed water outlet holes 161. A connection hole 162 is provided in the middle of the side of the flushing pipe 16 away from the headbox 3. A retaining plate 17, which is movably fitted inside the retaining groove 133, is fixedly installed on the outer surface of the flushing pipe 16. Both ends of the flushing pipe 16 are fixedly fitted with annular plates 171. The two ends of the retaining plate 17 are respectively fixedly installed on the side wall of the annular plate 171 on the same side as it. An electric telescopic rod 18 is fixedly installed on the side wall of the first mounting plate 11 near the headbox 3. The output end of the electric telescopic rod 18 is fixedly installed on the side wall of the annular plate 171 near the headbox 3. The motor 15 is fixedly installed on the side wall of the first L-shaped plate 14, and the first L-shaped plate 14 is fixedly installed on the side wall of the first mounting plate 11. Through the setting of components such as the electric telescopic rod 18 and the motor 15, the flushing pipe 16 can be kept rotating as it moves into the variable diameter diffuser 32, thereby allowing the water sprayed from the water outlet 161 to thoroughly clean the inner wall of the variable diameter diffuser 32, avoiding the formation of sanitary dead corners, and achieving the purpose of facilitating the cleaning of the variable diameter diffuser 32. It does not require disassembly of the variable diameter diffuser 32, making it simple and convenient to use and saving cleaning time.

[0030] Example 2:

[0031] like Figure 1 , 2As shown in Figures 3, 4, 6, and 7: The water supply assembly 2 includes a steel pipe 24 movably fitted inside the connection hole 162. An annular limiting plate 25 is rotatably fitted onto the outer surface of the end of the steel pipe 24 located inside the flushing pipe 16 via a bearing ring. An annular sealing ring is adhered to the outer surface of the annular limiting plate 25. The diameter of the annular limiting plate 25 matches the inner diameter of the flushing pipe 16. A second mounting plate 23 is fixedly installed on the right side of the top surface of the second L-shaped plate 4. The end of the steel pipe 24 located outside the flushing pipe 16 is fixedly fitted inside the second mounting plate 23. The end of the steel pipe 24 furthest from the flushing pipe 16 is connected to a delivery pipe 22 via a flange. The bottom end of 22 is fixedly connected to the output end of the water pump 21. The water pump 21 is fixedly installed on the side wall of the second L-shaped plate 4. The input end of the water pump 21 is fixedly connected to the inlet pipe 26, which is connected to the external water source. The water pump 21 delivers the external water source to the delivery pipe 22 and the steel pipe 24. Then, the water in the steel pipe 24 enters the interior of the flushing pipe 16 and finally sprays out through the outlet hole 161. The annular limiting plate 25 can prevent the flushing pipe 16 from detaching from the inlet pipe 26. The annular limiting plate 25 is provided with an annular sealing ring on its surface, which can increase the sealing of the connection between the flushing pipe 16 and the steel pipe 24.

[0032] The working principle and usage process of this utility model: When using this headbox online cleaning device, the electric telescopic rod 18 and the motor 15 are started simultaneously. The electric telescopic rod 18 pushes the annular plate 171 and the flushing pipe 16 into the variable diameter diffuser 32. During this process, the flushing pipe 16 moves along the outer surface of the steel pipe 24. The motor 15 drives the drive gear to rotate. Through the engagement of the drive gear with the slot 133, the annular turntable 13 can be rotated. Through the arrangement of the slot 133 and the plate 17, the flushing pipe 16 can rotate together with the annular turntable 13. During this process, the water pump 21 is started to deliver external water to the delivery pipe 22 and the steel pipe 24. Then, the water in the steel pipe 24 enters the interior of the flushing pipe 16 and is finally sprayed out through the water outlet 161, which can flush the inner wall of the variable diameter diffuser 32.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A headbox online cleaning device, comprising a headbox (3), wherein a variable diameter diffuser (32) and a conical distributor (31) are provided on the headbox (3), and a guide sleeve (311) is provided in the conical distributor (31); Its features are: The right side wall of the headbox (3) is detachably mounted with a second L-shaped plate (4) by bolts. The second L-shaped plate (4) is provided with a flushing assembly (1) and a water supply assembly (2) that provides water to the flushing assembly (1). The flushing assembly (1) includes a first mounting plate (11) fixedly installed on the left side of the top surface of the second L-shaped plate (4). A circular hole (12) is provided in the middle of the side wall of the first mounting plate (11). An annular turntable (13) is rotatably fitted inside the circular hole (12) through a bearing ring. An annular groove (131) is provided on the side of the annular turntable (13) away from the headbox (3). A toothed block (132) arranged in a circular array is fixedly installed on the arc surface of the inner ring of the annular groove (131). A drive gear that meshes with the toothed block (132) is provided inside the annular groove (131). The moving gear is fixedly installed on the output end of the motor (15). The inner wall of the annular turntable (13) is provided with symmetrically distributed slots (133). The inner ring of the annular turntable (13) is movably fitted with a flushing pipe (16) coaxially arranged with the variable diameter diffuser (32). An electric telescopic rod (18) is provided on the outer surface of the flushing pipe (16). The flushing pipe (16) is hollow inside. The flushing pipe (16) has evenly distributed water outlet holes (161) on the arc surface near the headbox (3). The flushing pipe (16) has a connecting hole (162) in the middle of the side away from the headbox (3).

2. The headbox online cleaning device according to claim 1, characterized in that: The outer surface of the flushing pipe (16) is fixedly fitted with a retaining plate (17) that is movably fitted inside the retaining groove (133). Both ends of the flushing pipe (16) are fixedly fitted with annular plates (171), and both ends of the retaining plate (17) are respectively fixedly installed on the side wall of the annular plate (171) on the same side.

3. The headbox online cleaning device according to claim 2, characterized in that: The electric telescopic rod (18) is fixedly installed on the side wall of the first mounting plate (11) near the headbox (3), and the output end of the electric telescopic rod (18) is fixedly installed on the side wall of the annular plate (171) near the headbox (3).

4. The headbox online cleaning device according to claim 1, characterized in that: The motor (15) is fixedly installed on the side wall of the first L-shaped plate (14), and the first L-shaped plate (14) is fixedly installed on the side wall of the first mounting plate (11).

5. The headbox online cleaning device according to claim 1, characterized in that: The water supply assembly (2) includes a steel pipe (24) that is movably fitted inside the connection hole (162). The outer surface of the steel pipe (24) located inside the flushing pipe (16) is fitted with an annular limiting plate (25) through a bearing ring. An annular sealing ring is bonded to the outer surface of the annular limiting plate (25). The diameter of the annular limiting plate (25) matches the inner diameter of the flushing pipe (16).

6. The headbox online cleaning device according to claim 5, characterized in that: A second mounting plate (23) is fixedly installed on the right side of the top surface of the second L-shaped plate (4). One end of the steel pipe (24) located outside the flushing pipe (16) is fixedly fitted inside the second mounting plate (23). The end of the steel pipe (24) away from the flushing pipe (16) is connected to a conveying pipe (22) through a flange. The bottom end of the conveying pipe (22) is fixedly connected to the output end of the water pump (21).

7. The headbox online cleaning device according to claim 6, characterized in that: The water pump (21) is fixedly installed on the side wall of the second L-shaped plate (4), and the input end of the water pump (21) is fixedly connected to an inlet pipe (26) that is connected to an external water source.

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