A papermaking air floatation machine

Abstract

The utility model relates to a kind of air floaters for papermaking, including air floater body, cleaning mechanism is installed in air floater body upper, air floater body lower installation has sleeve shell, air float assembly is installed in sleeve shell, air float assembly outer installation has adaptation device, filtration device is installed on adaptation device.The utility model can make different air hole to the bubble emitted above air float assembly carry out size adjustment by setting adaptation device, so as to form the bubble of different diameter rising in waste water, fully combine with different particle size suspended impurities, the filter plate of upper can be driven waste to float to surface under the bubble disturbance, realize sustained purification, whereby, by the multistage linkage and dynamic sliding of the structure, so that bubble particle size and air float environment match, effectively avoid the problem that pulp fiber impurities are easily accumulated and stuck in movable surface in prior art, leading to jam or unable to reset, significantly improve the stability and processing efficiency of air float system.

Description

Technical Field

[0001] This utility model relates to the field of wastewater purification technology, and in particular to an air flotation machine for papermaking. Background Technology

[0002] An air flotation device is a water treatment device that introduces air into water in the form of tiny bubbles. These tiny bubbles adhere to suspended particles in the water, forming a three-phase mixture of water, air, and particles. When the particles adhere to the bubbles, their density is less than that of water, so they float to the surface and form a scum layer, which is then separated from the water.

[0003] Existing technologies disclose several utility model patents in the field of wastewater purification. Among them, utility model patent application number CN223213872U discloses an air flotation device. This utility model, belonging to the field of wastewater purification technology, includes a tank with an air flotation component installed on it to lift scum. The air flotation component includes an air flotation device and an adjustable air hole component. The tank is connected to the air flotation device and the adjustable air hole component, and the air flotation device is connected to the adjustable air hole component. A scum removal device is installed on the tank and connected to the air flotation device. A stirring device for stirring wastewater is installed on the tank. A drainage device for discharging filtered water is installed on the tank. Through this method, by moving air holes of different sizes above the branch pipe, the device sprays air bubbles of different volumes. These air bubbles lift scum from wastewater of different properties, facilitating scum removal.

[0004] Papermaking wastewater typically contains a large amount of suspended fibrous impurities, filler particles, and fine air bubbles. To improve water clarity and achieve wastewater recycling, dissolved air flotation (DAF) machines are often used to treat the mixed water. Existing DAF machines for papermaking generally separate suspended solids by releasing air bubbles into the water. However, existing structures often use fixed pores or a single bubble generating device, making it difficult to dynamically adjust the bubble size according to operating conditions. This results in some bubbles failing to fully combine with fibrous impurities, affecting DAF efficiency. On the other hand, although some equipment has adjustable structures, fibrous impurities in the pulp tend to accumulate on moving surfaces or sliding parts during long-term operation, causing the push plate to jam and move poorly. This leads to uneven bubble release and makes it impossible to achieve continuous and stable DAF treatment. In addition, some filtration structures are prone to clogging due to impurity accumulation during operation, affecting the permeability of the filter plate and the stability of DAF. Utility Model Content

[0005] (a) Technical problems to be solved To address the aforementioned problems in the prior art, this utility model provides an air flotation machine for papermaking. This solves the problem that existing structures often employ fixed air holes or a single bubble generating device, making it difficult to dynamically adjust the bubble size according to changes in operating conditions. This results in some bubbles failing to fully combine with fiber impurities, affecting air flotation efficiency. Furthermore, although some equipment has an adjustable structure, during long-term operation, fiber impurities in the pulp tend to accumulate on moving surfaces or sliding parts, causing the pusher plate to jam and movement to be obstructed, leading to uneven bubble release.

[0006] (II) Technical Solution To achieve the above objectives, the main technical solution adopted by this utility model is as follows: A papermaking air flotation machine includes an air flotation machine body, a cleaning mechanism installed above the air flotation machine body, a housing installed below the air flotation machine body, an air flotation component installed inside the housing, an adapter device installed outside the air flotation component, and a filter device installed on the adapter device. The adapter includes a drive motor and a support plate. A connecting shaft is installed at the output end of the drive motor. A linkage rod is sleeved on the connecting shaft. A drive plate is hinged to the linkage rod via a pin. A movable plate is fixedly connected to the drive plate. A collar is fixedly connected to the movable plate. An installation rod is rotatably connected inside the collar. A movable block is fixedly connected to the installation rod. The support plate is sleeved on the air flotation assembly. Two sliders are slidably connected inside the support plate. A housing is fixedly connected to the two sliders. Several air holes are opened inside the housing. The housing is slidably connected to the housing via a sealing sleeve. The housing is fixedly connected to the movable block. The filtration device includes a movable frame, and a filter plate is installed inside the movable frame.

[0007] The adapter also includes a connecting plate, which is fixedly connected to the front of the housing, and the drive motor is fixedly connected to the outside of the connecting plate. The connecting shaft and the connecting plate form a rotatable connection.

[0008] The size of the filter plate is smaller than the size inside the housing, and the filter plate overlaps inside the housing.

[0009] Four elastic telescopic rods are fixedly connected to the movable frame, and each of the four elastic telescopic rods has a horizontal plate installed at its telescopic end.

[0010] The four horizontal plates are fixedly connected to the same frame, which is fixedly connected inside the casing.

[0011] The filtering device also includes a top block and a pressing block. The top block is fixedly connected to the lower surface of the filter plate, and a hemisphere for easy pressing is installed at the lower end of the top block.

[0012] The extrusion block is fixedly connected to the upper surface of the housing, and the top block and the extrusion block are positioned correspondingly.

[0013] (III) Beneficial Effects 1. This utility model, through the provision of an adapter device, enables the drive motor to rotate during operation. The drive motor rotates the connecting shaft, which in turn rotates the linkage rod synchronously. The linkage rod, via a pin, drives the movable plate to deflect. During this movement, the movable plate causes the collar to swing, which in turn rotates the mounting rod, thereby driving the moving block outside the mounting rod to move axially. The moving block applies a thrust to the housing during its movement, causing the housing to slide smoothly within the support plate via the slider. This allows the air holes of varying sizes inside the housing to move axially above the air flotation assembly, enabling the air holes of different sizes to move sequentially. Acting on the bubble release area, this process allows different pores to adjust the size of the bubbles emitted from above the flotation component, thereby forming bubbles of different diameters that rise in the wastewater and fully combine with suspended impurities of different particle sizes. At the same time, the filter plate above can also carry the waste to the surface under the disturbance of the bubbles, achieving continuous purification. Thus, through the multi-stage linkage and dynamic sliding of this structure, the bubble particle size is matched with the flotation environment, effectively avoiding the problem of pulp fiber impurities easily accumulating and jamming the moving surface in the existing technology, causing stagnation or inability to reset, and significantly improving the stability and treatment efficiency of the flotation system.

[0014] 2. In this utility model, the periodic vibration cleaning function of the filter structure is realized through the synergistic action of the housing and the filter device. During the movement of the housing, the squeezing block on the upper surface of the housing moves accordingly. When the squeezing block moves to the designated position, it contacts the top block set below the filter plate and applies squeezing force. After being subjected to squeezing force, the top block pushes the filter plate and the moving frame upward, causing the elastic telescopic rod connected to the moving frame to compress synchronously. As the squeezing block separates from the top block, the elastic telescopic rod releases its elasticity, driving the moving frame and the filter plate to reset, thus forming a reciprocating vibration process. Through this vibration action, the surface of the filter plate vibrates and ripples, effectively shaking off the attached waste and fiber residue, preventing long-term accumulation and clogging. Therefore, this structure can achieve automatic self-cleaning without affecting the air flotation operation, maintain the permeability of the filter surface, and significantly improve the continuous operation capability and long-term stability of the system. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the casing of this utility model; Figure 3 This is a three-dimensional structural diagram of the adapter device of this utility model; Figure 4 This utility model Figure 3Enlarged structural diagram of section A; Figure 5 This is a three-dimensional structural diagram of the filtration device of this utility model.

[0016] [Explanation of Labels in the Attached Image] 1. Air flotation machine body; 2. Cleaning mechanism; 3. Housing; 4. Air flotation component; 5. Adaptor device; 501. Connecting plate; 502. Drive motor; 503. Connecting shaft; 504. Linkage rod; 505. Drive plate; 506. Movable plate; 507. Collar; 508. Moving block; 509. Mounting rod; 510. Support plate; 511. Slider; 512. Housing; 513. Air hole; 6. Filtering device; 601. Frame; 602. Horizontal plate; 603. Elastic telescopic rod; 604. Moving frame; 605. Filter plate; 606. Top block; 607. Extrusion block. Detailed Implementation

[0017] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Please refer to Figures 1 to 5 As shown, the present invention provides a papermaking air flotation machine, including an air flotation machine body 1, a cleaning mechanism 2 installed above the air flotation machine body 1, a housing 3 installed below the air flotation machine body 1, an air flotation component 4 installed inside the housing 3, an adapter 5 installed outside the air flotation component 4, and a filter 6 installed on the adapter 5. The adapter 5 includes a drive motor 502 and a support plate 510. A connecting shaft 503 is installed at the output end of the drive motor 502. A linkage rod 504 is sleeved on the connecting shaft 503. A drive plate 505 is hinged to the linkage rod 504 by a pin. A movable plate 506 is fixedly connected to the drive plate 505. A collar 507 is fixedly connected to the movable plate 506. An installation rod 509 is rotatably connected inside the collar 507. A moving block 508 is fixedly connected to the installation rod 509. The support plate 510 is sleeved on the air flotation component 4. Two sliders 511 are slidably connected inside the support plate 510. A housing 512 is fixedly connected to the two sliders 511. Several air holes 513 are opened inside the housing 512. The housing 512 is slidably connected to the housing 3 by a sealing sleeve. The housing 512 is fixedly connected to the moving block 508. The filter device 6 includes a movable frame 604, within which a filter plate 605 is installed. In actual operation, the drive motor 502 is started, causing the connecting shaft 503 to rotate. This rotation of the connecting shaft 503 causes the linkage rod 504 to rotate synchronously. The linkage rod 504 drives the movable plate 506 to deflect via a pin. During this movement, the movable plate 506 causes the collar 507 to swing. This swinging motion of the collar 507 causes the mounting rod 509 to rotate, thereby driving the movable block 508 outside the mounting rod 509 to move axially. The movable block 508 exerts a thrust on the housing 512 during its movement, causing the housing 512 to slide smoothly within the support plate 510 via the slider 511. The varying sizes of air holes 513 inside the housing 512 thus contribute to the air flotation assembly. The component 4 moves axially upwards, allowing air holes 513 of different sizes to act sequentially on the bubble release area. Through this process, the different air holes 513 can adjust the size of the bubbles emitted from the air flotation component 4, thereby forming bubbles of different diameters that rise in the wastewater and fully combine with suspended impurities of different particle sizes. At the same time, the filter plate 605 above can also carry the waste to the surface under the disturbance of the bubbles, achieving continuous purification. Thus, through the multi-stage linkage and dynamic sliding of this structure, the bubble particle size is matched with the air flotation environment, effectively avoiding the problem of pulp fiber impurities easily accumulating and jamming the moving surface in the prior art, causing stagnation or inability to reset, and significantly improving the stability and processing efficiency of the air flotation system.

[0019] Optionally, the adapter 5 also includes a connecting plate 501, which is fixedly connected to the front of the housing 3. The drive motor 502 is fixedly connected to the outside of the connecting plate 501. The connecting shaft 503 and the connecting plate 501 form a rotatable connection. The size of the filter plate 605 is smaller than the internal size of the housing 3, and the filter plate 605 overlaps inside the housing 3. In actual implementation, the connecting shaft 503 and the connecting plate 501 form a rotatable connection, which allows the drive motor 502 to drive the connecting shaft 503 to rotate smoothly without swaying or shaking. This connection allows the subsequent linkage rod 504 and the movable plate 506 to rotate synchronously, improving the uniformity of bubble flow in the air flotation assembly 4, thereby improving the impurity removal efficiency.

[0020] Optionally, four elastic telescopic rods 603 are fixedly connected to the movable frame 604. Each of the four telescopic rods 603 has a horizontal plate 602 installed at its telescopic end. The same frame 601 is fixedly connected to the four horizontal plates 602, and the frame 601 is fixedly connected inside the housing 3. In actual implementation, the filter plate 605 is installed inside the movable frame 604, forming a nested fit. This allows the filter plate 605 to maintain a stable position under the constraint of the movable frame 604 and to vibrate slightly up and down. This fit allows the filter plate 605 to periodically shake while maintaining filtration accuracy, facilitating impurity removal and discharge.

[0021] Optionally, the filter device 6 also includes a top block 606 and a pressing block 607. The top block 606 is fixedly connected to the lower surface of the filter plate 605, and a hemisphere for easy pressing is installed at the lower end of the top block 606. In actual implementation, the periodic vibration cleaning function of the filter structure is realized through the synergistic action of the housing 512 and the filter device 6. During the movement of the housing 512, the squeezing block 607 on the upper surface of the housing 512 moves accordingly. When the squeezing block 607 moves to the designated position, it contacts the top block 606 located below the filter plate 605 and applies squeezing force. After being subjected to squeezing force, the top block 606 pushes the filter plate 605 and the moving frame 604 upward, causing the elastic telescopic rod 603 connected to the moving frame 604 to compress synchronously. As the squeezing block 607 separates from the top block 606, the elastic telescopic rod 603 releases its elastic force, driving the moving frame 604 and the filter plate 605 to reset, thus forming a reciprocating vibration process. Through this vibration action, the surface of the filter plate 605 vibrates and ripples, effectively shaking off the attached waste and fiber residue, preventing long-term accumulation and clogging. Therefore, this structure can achieve automatic self-cleaning without affecting the air flotation operation, maintain the permeability of the filter surface, and significantly improve the continuous operation capability and long-term stability of the system.

[0022] Optionally, the squeezing block 607 is fixedly connected to the upper surface of the housing 512, and the top block 606 and the squeezing block 607 are positioned correspondingly. In actual implementation, the squeezing block 607 is fixed to the upper surface of the housing 512. The fixed cooperation between the two ensures that the squeezing block 607 remains synchronized when the housing 512 moves. In this way, when the housing 512 slides to the designated position, the squeezing block 607 can accurately contact the top block 606 and apply squeezing force, realizing the periodic pressure and vibration of the filter plate 605, forming an active cleaning process.

[0023] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flotation machine for papermaking, comprising a flotation machine body, characterized in that: A cleaning mechanism is installed above the air flotation machine body, a housing is installed below the air flotation machine body, an air flotation component is installed inside the housing, an adapter is installed outside the air flotation component, and a filter is installed on the adapter. The adapter includes a drive motor and a support plate. A connecting shaft is installed at the output end of the drive motor. A linkage rod is sleeved on the connecting shaft. A drive plate is hinged to the linkage rod via a pin. A movable plate is fixedly connected to the drive plate. A collar is fixedly connected to the movable plate. An installation rod is rotatably connected inside the collar. A movable block is fixedly connected to the installation rod. The support plate is sleeved on the air flotation assembly. Two sliders are slidably connected inside the support plate. A housing is fixedly connected to the two sliders. Several air holes are opened inside the housing. The housing is slidably connected to the housing via a sealing sleeve. The housing is fixedly connected to the movable block. The filtration device includes a movable frame, and a filter plate is installed inside the movable frame.

2. The air flotation machine for papermaking according to claim 1, characterized in that: The adapter also includes a connecting plate, which is fixedly connected to the front of the housing, and the drive motor is fixedly connected to the outside of the connecting plate. The connecting shaft and the connecting plate form a rotatable connection.

3. The air flotation machine for papermaking according to claim 1, characterized in that: The size of the filter plate is smaller than the size inside the housing, and the filter plate overlaps inside the housing.

4. The air flotation machine for papermaking according to claim 1, characterized in that: Four elastic telescopic rods are fixedly connected to the movable frame, and each of the four elastic telescopic rods has a horizontal plate installed at its telescopic end.

5. A papermaking air flotation machine according to claim 4, characterized in that: The four horizontal plates are fixedly connected to the same frame, which is fixedly connected inside the casing.

6. A papermaking air flotation machine according to claim 5, characterized in that: The filtering device also includes a top block and a pressing block. The top block is fixedly connected to the lower surface of the filter plate, and a hemisphere for easy pressing is installed at the lower end of the top block.

7. A papermaking air flotation machine according to claim 6, characterized in that: The extrusion block is fixedly connected to the upper surface of the housing, and the top block and the extrusion block are positioned correspondingly.

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