A papermaking white water fiber air flotation device

Abstract

The utility model discloses a kind of papermaking white water fiber air floatation device, it is related to papermaking white water recovery technical field, including dross pond, the inside of the dross pond is provided with multiple filter screens, vibration mechanism is provided on the dross pond, the vibration mechanism is used to drive filter screen to vibrate, and press mechanism is connected on the vibration mechanism;The vibration mechanism includes first motor, the first motor is installed above the dross pond, the output end of the first motor is connected with shaft, and the press mechanism includes fixed frame, the fixed frame is connected on the shaft, the press mechanism further includes pressing plate, second fixed ring is connected on the pressing plate, one end of the fixed frame close to second fixed ring is rotatably connected with runner, the runner and second fixed ring contact, and the pressing plate is elastically connected above one of filter screen, the present scheme can further process by-product dross in air floatation device, to improve the recovery value of dross.

Description

Technical Field

[0001] This utility model relates to the field of papermaking white water treatment technology, specifically a papermaking white water fiber air flotation device. Background Technology

[0002] The papermaking white water fiber flotation unit is one of the most crucial and commonly used key pieces of equipment in papermaking wastewater treatment (especially white water treatment). It is specifically designed for the efficient recovery of fibers and fillers (such as calcium carbonate and kaolin) from white water, while simultaneously purifying the white water for recycling. The core principle of the flotation unit is the use of microbubbles (typically with a diameter of 40-70 micrometers) as a carrier. These bubbles adhere to the surface of suspended solids (mainly fiber and filler particles) in the white water, forming a "bubble-particle" composite. This composite has a lower overall density than water, thus rapidly rising to the surface under buoyancy, forming a concentrated scum layer. The scum is continuously or intermittently scraped off by a specialized scraper, thereby achieving solid-liquid separation.

[0003] The flotation device also includes a scum scraping system, which is used to scrape the scum into the scum pool for use. However, the scum scraped into the scum pool has a high water content and cannot be used directly. In addition, the scum contains a lot of impurities (such as sand and adhesives), and direct use will lead to a decline in product quality.

[0004] Therefore, we propose a papermaking white water fiber air flotation device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a papermaking white water fiber air flotation device to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a papermaking white water fiber air flotation device, comprising a scum tank, wherein multiple filter screens are arranged inside the scum tank, and a vibration mechanism is arranged on the scum tank, the vibration mechanism being used to drive the filter screens to vibrate, and a pressing mechanism is connected to the vibration mechanism; the vibration mechanism includes a first motor, the first motor being installed above the scum tank, and the output end of the first motor being connected to a rotating shaft; the pressing mechanism includes a fixed frame, the fixed frame being connected to the rotating shaft; the pressing mechanism also includes a pressure plate, the pressure plate being connected to a second fixed ring, and a rotating wheel being rotatably connected to one end of the fixed frame near the second fixed ring, the rotating wheel being in contact with the second fixed ring; the pressure plate being elastically connected above one of the filter screens.

[0007] Preferably, the vibration mechanism further includes a transmission cylinder, which is keyed to a rotating shaft. A top ring is fixedly connected to the transmission cylinder, and the top ring cooperates with a filter screen. A connecting frame is fixedly connected to the outer wall of the transmission cylinder, and a first fixing ring is provided below the connecting frame. The first fixing ring is fixedly connected to the bottom of the scum pool, and a movable wheel is rotatably connected to one end of the connecting frame near the first fixing ring. The movable wheel is rotatably connected to the first fixing ring.

[0008] Preferably, the top of the first fixing ring has two symmetrically arranged arc-shaped notches, the end of the transmission cylinder is connected to the scum pool by a first spring, a protective cover is provided above the connecting frame, and the protective cover is connected to the bottom of the scum pool.

[0009] Preferably, the pressing mechanism further includes a sliding plate, which is slidably connected inside the pressing plate, and an inclined rail is connected to the inner wall of the scum pool, with the sliding plate slidably connected inside the inclined rail.

[0010] Preferably, a fixed rail is connected to the inner wall of the scum pool, and a second spring is connected inside the fixed rail, the second spring being connected to a pressure plate.

[0011] Preferably, the second fixing ring has two symmetrically arranged arc-shaped openings, and a positioning rail is connected to the inner wall of the scum pool. A third spring is connected inside the positioning rail, and the third spring is connected to the filter screen.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, through the inclusion of a scum pool, a filter screen, a vibration mechanism, and a pressing mechanism, can further process scum. The multi-stage filter screen and vibration mechanism can remove impurities from the scum. In addition, the vibration mechanism can drive the pressing mechanism to squeeze out the water from the scum, thereby obtaining the final product of scum. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a partial enlarged cross-sectional view of the present invention;

[0017] Figure 4 This is a front sectional view of the present invention;

[0018] Figure 5 This is an enlarged view of section A of this utility model.

[0019] In the diagram: 1. Scum pool; 2. Vibration mechanism; 21. First motor; 22. Rotating shaft; 23. Transmission cylinder; 24. First spring; 25. First fixing ring; 26. Connecting frame; 27. Moving wheel; 28. Top ring; 3. Filter screen; 4. Pressing mechanism; 41. Press plate; 42. Second fixing ring; 43. Arc-shaped opening; 44. Fixing frame; 45. Rotating wheel; 46. Slide plate; 47. Inclined rail; 48. Fixed rail; 49. Second spring; 5. Protective cover; 6. Positioning rail; 7. Third spring. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 This utility model provides an embodiment of a papermaking white water fiber air flotation device, including a scum tank 1, with multiple filter screens 3 arranged inside the scum tank 1, and a vibration mechanism 2 arranged on the scum tank 1 to drive the filter screens 3 to vibrate. A pressing mechanism 4 is connected to the vibration mechanism 2. The vibration mechanism 2 includes a first motor 21, which is installed above the scum tank 1. The output end of the first motor 21 is connected to a rotating shaft 22. The pressing mechanism 4 includes a fixed frame 44, which is connected to the rotating shaft 22. The pressing mechanism 4 also includes a pressure plate 41, with a second fixed ring 42 connected to the pressure plate 41. A rotating wheel 45 is rotatably connected to one end of the fixed frame 44 near the second fixed ring 42. The rotating wheel 45 is in contact with the second fixed ring 42. The pressure plate 41 is elastically connected above one of the filter screens 3. The multiple filter screens 3 are arranged from top to bottom with progressively smaller mesh diameters, thereby filtering impurities of different diameters.

[0022] The scum pool 1 is set up to collect and process scum. Multiple filter screens 3 are set up to remove impurities from the scum. The vibration mechanism 2 can vibrate the filter screens 3 to improve the filtration efficiency. In addition, the vibration mechanism 2 can also drive the pressing mechanism 4 to press the scum while vibrating, thereby removing the water from the scum.

[0023] Please see Figure 2 The vibration mechanism 2 also includes a transmission cylinder 23, which is keyed to the rotating shaft 22. A top ring 28 is fixedly connected to the transmission cylinder 23, and the top ring 28 cooperates with the filter screen 3. A connecting frame 26 is fixedly connected to the outer wall of the transmission cylinder 23. A first fixing ring 25 is provided below the connecting frame 26. The first fixing ring 25 is fixedly connected to the bottom of the scum pool 1. A movable wheel 27 is rotatably connected to one end of the connecting frame 26 near the first fixing ring 25. The movable wheel 27 and the first fixing ring 25 are rotatably connected.

[0024] Please see Figure 2 , Figure 4 The top of the first fixing ring 25 has two symmetrically arranged arc-shaped notches. The end of the transmission cylinder 23 is connected to the scum pool 1 by a first spring 24. A protective cover 5 is provided above the connecting frame 26. The protective cover 5 is connected to the bottom of the scum pool 1.

[0025] Please see Figure 4 The second fixing ring 42 has two symmetrically arranged arc-shaped openings 43. The inner wall of the scum pool 1 is connected to a positioning rail 6, and a third spring 7 is connected inside the positioning rail 6. The third spring 7 is connected to the filter screen 3.

[0026] The working principle of the vibration mechanism 2 is as follows: First, the first motor 21 is started, and the first motor 21 drives the rotating shaft 22 to rotate. The rotating shaft 22 further drives the transmission cylinder 23 connected to it to rotate synchronously. At the same time, the connecting frame 26 and the moving wheel 27 connected to the transmission cylinder 23 rotate synchronously. When the moving wheel 27 rotates to a higher position on the first fixed ring 25, it will drive the transmission cylinder 23 to rise. The top ring 28 on the transmission cylinder 23 will push the filter screen 3. Since the filter screen 3 is connected to the third spring 7, it can reciprocate and vibrate, thereby accelerating the screening speed.

[0027] Please see Figure 3 The pressing mechanism 4 also includes a slide plate 46, which is slidably connected to the pressure plate 41. An inclined rail 47 is connected to the inner wall of the scum pool 1, and the slide plate 46 is slidably connected to the inclined rail 47. When the scum system scrapes the scum onto the filter screen 3, a larger portion of the slide plate 46 is inside the pressure plate 41, thus not affecting the scum falling onto the filter screen 3. The filter screen 3 at the top of the scum pool 1 is inclined, so that when the scum falls onto the filter screen 3, it can roll to other parts of the filter screen 3 under the action of gravity. When pressing, due to the limitation of the inclined rail 47, a larger portion of the slide plate 46 extends out of the pressure plate 41, thereby pressing the scum.

[0028] Please see Figure 3 A fixed rail 48 is connected to the inner wall of the scum pool 1. A second spring 49 is connected inside the fixed rail 48. The second spring 49 is connected to the pressure plate 41.

[0029] The working principle of the pressing mechanism 4 is as follows: when the first motor 21 drives the rotating shaft 22 to rotate, the fixed frame 44 and the rotating wheel 45 connected on the rotating shaft 22 rotate synchronously. When the rotating wheel 45 rotates to the higher position of the second fixed ring 42, it pushes the second fixed ring 42 and the pressure plate 41 to descend synchronously. At the same time, the second spring 49 is compressed, and the descending pressure plate 41 can press the scum on the surface of the filter screen 3 and squeeze out the water inside. Meanwhile, the slide plate 46 slides with the inclined rail 47 during the descent, so it can slide inside the pressure plate 41 at the same time as it descends, thereby covering the scum on the surface of the filter screen 3 as much as possible.

[0030] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A papermaking white water fiber air flotation device, comprising a scum tank (1), characterized in that: The scum pool (1) is equipped with multiple filter screens (3) inside. The scum pool (1) is equipped with a vibration mechanism (2). The vibration mechanism (2) is used to drive the filter screens (3) to vibrate. The vibration mechanism (2) is connected to a pressing mechanism (4). The vibration mechanism (2) includes a first motor (21), which is installed above the scum pool (1). The output end of the first motor (21) is connected to a rotating shaft (22). The pressing mechanism (4) includes a fixed frame (44), which is connected to the rotating shaft (22). The pressing mechanism (4) also includes a pressure plate (41), which is connected to a second fixed ring (42). A rotating wheel (45) is rotatably connected to one end of the fixed frame (44) near the second fixed ring (42). The rotating wheel (45) is in contact with the second fixed ring (42). The pressure plate (41) is elastically connected above one of the filter screens (3).

2. The papermaking white water fiber air flotation device according to claim 1, characterized in that: The vibration mechanism (2) further includes a transmission cylinder (23), which is keyed to the rotating shaft (22). A top ring (28) is fixedly connected to the transmission cylinder (23), which cooperates with the filter screen (3). A connecting frame (26) is fixedly connected to the outer wall of the transmission cylinder (23). A first fixing ring (25) is provided below the connecting frame (26). The first fixing ring (25) is fixedly connected to the bottom of the scum pool (1). A movable wheel (27) is rotatably connected to one end of the connecting frame (26) near the first fixing ring (25). The movable wheel (27) is rotatably connected to the first fixing ring (25).

3. The papermaking white water fiber air flotation device according to claim 2, characterized in that: The top of the first fixing ring (25) has two symmetrically arranged arc-shaped notches. The end of the transmission cylinder (23) is connected to the scum pool (1) by a first spring (24). A protective cover (5) is provided above the connecting frame (26). The protective cover (5) is connected to the bottom of the scum pool (1).

4. The papermaking white water fiber air flotation device according to claim 1, characterized in that: The pressing mechanism (4) also includes a sliding plate (46), which is slidably connected to the pressure plate (41). An inclined rail (47) is connected to the inner wall of the scum pool (1), and the sliding plate (46) is slidably connected to the inclined rail (47).

5. The papermaking white water fiber air flotation device according to claim 1, characterized in that: A fixed rail (48) is connected to the inner wall of the scum pool (1), and a second spring (49) is connected inside the fixed rail (48). The second spring (49) is connected to the pressure plate (41).

6. The papermaking white water fiber air flotation device according to claim 1, characterized in that: The second fixing ring (42) has two symmetrically arranged arc-shaped openings (43), and a positioning rail (6) is connected to the inner wall of the scum pool (1). A third spring (7) is connected inside the positioning rail (6), and the third spring (7) is connected to the filter screen (3).

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