A vacuum dewatering box for improving the uniformity of a paper web

Abstract

This utility model belongs to the field of papermaking technology, and in particular, it is a vacuum dewatering box for improving paper web uniformity. The proposed solution includes a box body, with a vacuum pump connected to the right side of the box body and a drain pipe connected to the left side. The vacuum dewatering box for improving paper web uniformity also includes: a dewatering assembly, with the top of the box's inner cavity cooperating with the dewatering assembly; and a cleaning mechanism located at the bottom of the dewatering assembly, used to filter impurities on the dewatering assembly. The dewatering assembly includes: a rectangular frame, a sealing groove, a sealing ring, and a vacuum panel. The rectangular frame is fixedly installed at the top of the box's inner cavity, the sealing groove is opened at the bottom of the rectangular frame, and the sealing ring is movably disposed within the inner cavity of the sealing ring. In this utility model, through the cooperative use of the cleaning mechanism, waste debris in the dewatering holes on the vacuum panel can be vibrated and cleaned, thereby improving the uniformity of paper web dewatering and reducing the energy consumption of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, and in particular to a vacuum dehydration box for improving paper web uniformity. Background Technology

[0002] Paper is composed of a thin layer of fibers, and its uniformity will seriously affect its performance. Because it is so thin, if the fibers are not evenly distributed, some areas will be without fibers, forming holes. Especially in the production of thin paper, in severe cases, it will be impossible to produce at all. Vacuum gaps are opened on the surface to allow for vacuum dehydration.

[0003] Chinese patent application number 201520187916.2 discloses a vacuum dehydration box for improving paper web uniformity. Its structure includes a hollow box body, a vacuum panel on the top of the box body, and pores in the vacuum panel, which are set as serrated pores.

[0004] During the paper production process, impurities such as fibers, paper scraps, and oil stains in the pulp gradually accumulate in the pores of the vacuum panel. Over time, these impurities may gradually cover and block the pores, and the equipment cannot automatically clean these impurities, resulting in uneven dewatering of the paper web. The equipment needs to take longer to achieve the expected dewatering effect, leading to energy waste. Therefore, this utility model proposes a vacuum dewatering box to improve the uniformity of the paper web and solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problem that during the paper production process, impurities such as fibers, paper scraps, and oil stains in the pulp gradually accumulate in the pores of the vacuum panel. Over time, these impurities may gradually cover and block the pores, and the current equipment cannot automatically clean these impurities, resulting in uneven paper web dewatering. The equipment requires a longer time to achieve the expected dewatering effect, leading to energy waste. Therefore, this invention proposes a vacuum dewatering box to improve paper web uniformity.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A vacuum dewatering chamber for improving paper web uniformity includes a chamber body, a vacuum pump connected to the right side of the chamber body, and a drain pipe connected to the left side of the chamber body. The vacuum dewatering chamber for improving paper web uniformity also includes: The dehydration assembly is fitted to the top of the inner cavity of the chamber; A cleaning mechanism is located at the bottom of the dehydration assembly and is used to filter impurities on the dehydration assembly.

[0007] As a preferred embodiment of this utility model, the dehydration component includes: a rectangular frame, a sealing groove, a sealing ring, and a vacuum panel; A rectangular frame is fixedly installed on the top of the inner cavity of the box, a sealing groove is opened at the bottom of the rectangular frame, a sealing ring is movably set in the inner cavity of the sealing ring, the bottom of the sealing ring is fixedly connected to the vacuum panel, and the top of the vacuum panel has a rectangular array of dehydration holes.

[0008] As a preferred embodiment of this utility model, the cleaning mechanism includes: a motor, a rotating rod, an elliptical wheel, a U-shaped frame, and a hydraulic cylinder; The motor is fixedly installed on the left side of the housing. The output end of the motor is fixedly connected to the rotating rod. The right side of the rotating rod passes through the left side of the housing and is rotatably connected to the right side of the inner cavity of the housing. An elliptical wheel is fixedly sleeved on the surface of the rotating rod. A U-shaped frame is fixedly installed at the bottom of the vacuum panel. A hydraulic cylinder is fixedly installed at the bottom of the inner cavity of the housing. The output shaft of the hydraulic cylinder is movably connected to the bottom of the U-shaped frame.

[0009] As a preferred embodiment of this utility model, chamfers are provided on both sides of the top of the rectangular frame cavity.

[0010] As a preferred embodiment of this utility model, a sliding sleeve is fixedly connected to both the front and rear sides of the vacuum panel. A sliding rod is slidably connected to the inner cavity of the sliding sleeve. The top of the sliding rod is fixedly connected to the bottom of the rectangular frame, and the bottom of the sliding rod is fixedly connected to the bottom of the inner cavity of the box. Two springs are fitted on the surface of the sliding rod and at the bottom of the sliding sleeve.

[0011] As a preferred embodiment of this utility model, a through hole is provided on the left side of the box body, and the inner cavity of the through hole is rotatably connected to the surface of the rotating rod through a rotating shaft.

[0012] Beneficial effects: 1. First, the output shaft of the hydraulic cylinder is separated from the U-shaped frame. At this time, the U-shaped frame and the vacuum panel are suspended by springs. Then, the motor is turned on to drive the rotating rod and the elliptical wheel to rotate. The elliptical wheel then contacts the U-shaped frame to generate vibration, which can vibrate and clean the waste in the dewatering holes on the vacuum panel, thereby improving the uniform dewatering of the paper web and reducing the energy consumption of the equipment. In this invention, the waste material in the dewatering holes on the vacuum panel can be cleaned by vibration through the use of the cleaning mechanism, thereby improving the uniform dewatering of the paper web and reducing the energy consumption of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a sectional view of the box body of this utility model; Figure 3 This is a bottom view of the rectangular frame and U-shaped frame structure of this utility model; Figure 4 This is a schematic diagram of the vacuum panel and hydraulic cylinder structure of this utility model.

[0014] In the diagram: 1. Housing; 2. Vacuum pump; 3. Drain pipe; 4. Rectangular frame; 5. Sealing groove; 6. Sealing ring; 7. Vacuum panel; 8. Motor; 9. Rotating rod; 10. Elliptical wheel; 11. U-shaped frame; 12. Hydraulic cylinder; 13. Sliding sleeve; 14. Sliding rod; 15. Spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example Reference Figures 1-4 A vacuum dewatering chamber for improving paper web uniformity includes a chamber body 1, a vacuum pump 2 connected to the right side of the chamber body 1, and a drain pipe 3 connected to the left side of the chamber body 1. The vacuum dewatering chamber for improving paper web uniformity also includes: The dehydration assembly is fitted to the top of the inner cavity of the chamber 1; The cleaning mechanism, located at the bottom of the dehydration unit, is used to filter impurities on the dehydration unit.

[0017] The dehydration assembly includes: a rectangular frame 4, a sealing groove 5, a sealing ring 6, and a vacuum panel 7; The rectangular frame 4 is fixedly installed on the top of the inner cavity of the box 1. The sealing groove 5 is opened at the bottom of the rectangular frame 4. The sealing ring 6 is movably set in the inner cavity of the sealing ring 6. The bottom of the sealing ring 6 is fixedly connected to the vacuum panel 7. The top rectangular array of the vacuum panel 7 has dehydration holes. By setting the sealing groove 5 and the sealing ring 6 together, the sealing between the vacuum panel 7 and the rectangular frame 4 can be guaranteed, and the dehydration effect can be improved.

[0018] The cleaning mechanism includes: a motor 8, a rotating rod 9, an elliptical wheel 10, a U-shaped frame 11, and a hydraulic cylinder 12; Motor 8 is fixedly installed on the left side of housing 1. The output end of motor 8 is fixedly connected to rotating rod 9. The right side of rotating rod 9 passes through the left side of housing 1 and is rotatably connected to the right side of the inner cavity of housing 1. Elliptical wheel 10 is fixedly sleeved on the surface of rotating rod 9. U-shaped frame 11 is fixedly installed at the bottom of vacuum panel 7. Hydraulic cylinder 12 is fixedly installed at the bottom of the inner cavity of housing 1. The output shaft of hydraulic cylinder 12 is movably connected to the bottom of U-shaped frame 11. First, the output shaft of hydraulic cylinder 12 is opened to separate from U-shaped frame 11. At this time, U-shaped frame 11 and vacuum panel 7 are suspended by spring 15. Then, by opening motor 8, rotating rod 9 and elliptical wheel 10 are driven to rotate. Then, elliptical wheel 10 contacts U-shaped frame 11 to generate vibration, which can vibrate and clean the waste in the dewatering holes on vacuum panel 7, thereby improving the uniform dewatering of paper web and reducing the energy consumption of equipment.

[0019] Figure 1 The rectangular frame 4 shown has chamfered corners on both sides of the top of the cavity to facilitate paper feeding and unloading from both sides.

[0020] Figure 4 The vacuum panel 7 shown is fixedly connected to the front and rear sides with sliding sleeves 13. The inner cavity of the sliding sleeve 13 is slidably connected to a sliding rod 14. The top of the sliding rod 14 is fixedly connected to the bottom of the rectangular frame 4, and the bottom of the sliding rod 14 is fixedly connected to the bottom of the inner cavity of the box 1. Two springs 15 are fitted on the surface of the sliding rod 14 and at the bottom of the sliding sleeve 13. By setting the sliding sleeve 13 and the sliding rod 14, the stability of the vacuum panel 7 when moving can be improved. By setting the springs 15, it is convenient to generate vibration force with the cleaning mechanism, thereby improving the cleaning effect.

[0021] Figure 4 The left side of the box 1 shown has a through hole, and the inner cavity of the through hole is rotatably connected to the surface of the rotating rod 9 through a rotating shaft, which improves the stability of the rotating rod 9 when it rotates.

[0022] It should be noted that all electrical equipment used in this application is powered by an external power source. The specific models of vacuum pump 2, motor 8, and hydraulic cylinder 12 used can be selected by those skilled in the art. Furthermore, the vacuum pump 2, motor 8, and hydraulic cylinder 12 mentioned above are all existing technologies and will not be described in detail in this solution.

[0023] The working principle of this utility model is as follows: When in use, the paper web is placed on the vacuum panel 7, and then the vacuum pump 2 is turned on to dehydrate the paper web. When the dehydration holes on the vacuum panel 7 are blocked and affect dehydration, the output shaft of the hydraulic cylinder 12 is opened to separate from the U-shaped frame 11. At this time, the U-shaped frame 11 and the vacuum panel 7 are suspended by the spring 15. Then, the motor 8 is turned on to drive the rotating rod 9 and the elliptical wheel 10 to rotate. Then, the elliptical wheel 10 contacts the U-shaped frame 11 and generates vibration, which can vibrate and clean the waste in the dehydration holes on the vacuum panel 7, thereby improving the uniformity of paper web dehydration and reducing the energy consumption of the equipment.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum dewatering box for improving paper web uniformity, comprising a box body (1), a vacuum pump (2) connected to the right side of the box body (1), and a drain pipe (3) connected to the left side of the box body (1), characterized in that, The vacuum dehydration chamber for improving paper web uniformity also includes: The top of the inner cavity of the box (1) is fitted with the dehydration component; A cleaning mechanism is located at the bottom of the dehydration assembly and is used to filter impurities on the dehydration assembly.

2. A vacuum dewatering box for improving the uniformity of a paper web according to claim 1, wherein The dehydration assembly includes: a rectangular frame (4), a sealing groove (5), a sealing ring (6), and a vacuum panel (7); A rectangular frame (4) is fixedly installed on the top of the inner cavity of the box (1), a sealing groove (5) is opened at the bottom of the rectangular frame (4), a sealing ring (6) is movably set in the inner cavity of the sealing ring (6), the bottom of the sealing ring (6) is fixedly connected to the vacuum panel (7), and the top rectangular array of the vacuum panel (7) is provided with dehydration holes.

3. A vacuum dewatering box for improving the uniformity of a paper web according to claim 1, wherein The cleaning mechanism includes: a motor (8), a rotating rod (9), an elliptical wheel (10), a U-shaped frame (11), and a hydraulic cylinder (12). The motor (8) is fixedly installed on the left side of the housing (1). The output end of the motor (8) is fixedly connected to the rotating rod (9). The right side of the rotating rod (9) passes through the left side of the housing (1) and is rotatably connected to the right side of the inner cavity of the housing (1). The elliptical wheel (10) is fixedly sleeved on the surface of the rotating rod (9). The U-shaped frame (11) is fixedly installed at the bottom of the vacuum panel (7). The hydraulic cylinder (12) is fixedly installed at the bottom of the inner cavity of the housing (1). The output shaft of the hydraulic cylinder (12) is movably connected to the bottom of the U-shaped frame (11).

4. A vacuum dewatering box for improving the uniformity of a paper web according to claim 2, wherein Both sides of the top of the inner cavity of the rectangular frame (4) are chamfered.

5. A vacuum dewatering box for improving the uniformity of a paper web according to claim 2, wherein The front and rear sides of the vacuum panel (7) are fixedly connected to the sliding sleeve (13). The inner cavity of the sliding sleeve (13) is slidably connected to the sliding rod (14). The top of the sliding rod (14) is fixedly connected to the bottom of the rectangular frame (4), and the bottom of the sliding rod (14) is fixedly connected to the bottom of the inner cavity of the box (1). The surface of the sliding rod (14) and the bottom of the sliding sleeve (13) are fitted with a spring (15). There are two springs (15).

6. A vacuum dewatering box for improving the uniformity of a paper web according to claim 3, wherein A through hole is provided on the left side of the box (1), and the inner cavity of the through hole is rotatably connected to the surface of the rotating rod (9) through a rotating shaft.

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