Papermaking white water fiber recovery device
By installing water distribution pipes, air nozzles, and air-dispersing grids at the bottom of the recycling tank, and using an auger to push the fibers, the problem of low fiber recycling efficiency caused by uneven air bubbles in the air flotation method is solved, achieving more efficient fiber recycling.
Patent Information
- Application Number
- CN202423171840.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In existing air flotation methods, the uneven distribution of air bubbles leads to low fiber recovery efficiency when recovering fibers from papermaking white water.
Water distribution pipes and air nozzles are evenly installed at the bottom of the recycling tank, along with an air-dispersing grid, to generate uniform air bubbles. Combined with the agitation of the auger, the floating fibers are automatically pushed into the recycling tank, preventing the fibers from settling again.
This achieves uniform bubble distribution, improving the overall fiber recycling efficiency and overall recovery rate.
Smart Images
Figure CN223592451U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to papermaking white water treatment technical field, especially in papermaking white water fiber recovery device. BACKGROUND
[0002] Papermaking white water refers to the waste water produced in the papermaking process, which contains a large amount of suspended solids such as fine fibers, fillers and related functional additives. In order to reduce pollution and water consumption, filtration and air flotation are usually used for fiber recovery during white water recycling.
[0003] At present, when the existing technology recovers the fibers in the papermaking white water by using the air flotation method, the principle is to inject micro-bubbles into the white water, so that the fibers and other suspended solids in the white water adhere to the bubbles. Because the density of these gas-solid mixtures is less than water, they float to the water surface, and then the floated substances are collected and separated to achieve the purpose of recovering fibers.
[0004] However, in the traditional air flotation method, the generation of bubbles depends on specific aeration equipment or dissolved gas release devices. These devices may be affected by factors such as the structure of the equipment and operating parameters during operation, resulting in differences in bubble size and quantity in different areas. Uneven aeration can easily lead to good fiber floating effect in some areas, while fibers in other areas still remain in the water, affecting the overall recovery efficiency of fibers.
[0005] Therefore, the present application provides a papermaking white water fiber recovery device to solve the above technical problems. UTILITY MODEL CONTENTS
[0006] The technical problem to be solved by the utility model is to provide a papermaking white water fiber recovery device to solve the problem that the existing technology uses air flotation method to recover fibers in papermaking white water, which causes uneven distribution of bubbles and affects the overall recovery efficiency of fibers.
[0007] To solve the above technical problems, the utility model provides the following technical scheme:
[0008] A papermaking white water fiber recovery device, comprising a recovery tank, a horizontal auger is installed at the upper end of the recovery tank, a recovery port is formed at the top of the recovery tank corresponding to the output end of the auger, a recovery tank is connected outside the recovery port, a horizontal filter plate is installed in the middle of the recovery tank, and a base is fixed at the bottom end of the recovery tank, a water distribution pipe is installed in the base, a section of the water distribution pipe is uniformly distributed at the bottom of the recovery tank, a plurality of air nozzles are uniformly arranged on the water distribution pipe, and a horizontal air diffuser grid is also installed at the bottom of the recovery tank.
[0009] Optionally, the upper port of the recovery tank is a strip-shaped opening adapted to the auger, one end of the auger extending out of the recovery tank and connected with a servo motor.
[0010] Optionally, a water injection bucket is connected to the middle side of the recovery tank, and the upper port of the water injection bucket is not lower than the top of the recovery tank.
[0011] Optionally, a sewage pipe is installed on the bottom side of the recovery tank, and a valve is arranged on the sewage pipe.
[0012] Optionally, a backflow pipe is installed on the bottom of the recovery tank.
[0013] Optionally, an air pump is installed on the outside of the recovery tank, the air pump is connected with a hose, the hose extends into the base and communicates with the water distribution pipe.
[0014] Optionally, a handle is fixed to the upper end surface of the filter plate.
[0015] Compared with the prior art, the device has at least the following beneficial effects:
[0016] In the above scheme, thanks to the water distribution pipe and air nozzle arranged uniformly at the bottom of the recovery tank, bubbles can be uniformly generated in the recovery tank, and the setting of the air diffuser grid can break the aggregation state of the bubbles, so that the bubbles are further refined and uniformly spread to the surrounding, thereby ensuring the efficiency of air flotation and improving the overall recovery efficiency of the fibers in the papermaking white water.
[0017] In the above scheme, thanks to the auger arranged in the upper port of the recovery tank, and in combination with the setting of the recovery port, the recovery tank and the filter plate, the fibers floating in the upper port of the recovery tank can be continuously pushed into the recovery tank, avoiding the fibers staying on the water surface for a long time and re-settling, and for the small fibers that are difficult to effectively attach bubbles and float, the stirring action of the auger also helps to promote them to gather together or entangle with other fibers that have attached bubbles, so that they are taken to the water surface together and collected by the auger, thereby improving the overall recovery rate of the fibers.
[0018] In summary, the bubbles in the device are more uniform when the fibers are floated, the overall recovery effect of the fibers is better, and the recovery efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS
[0019] The drawings incorporated herein and forming part of the specification show embodiments of the present application and, together with the specification, further serve to explain the principles of the present application and to enable one skilled in the relevant art to practice and use the present application.
[0020] Figure 1 It is a structural schematic diagram of the papermaking white water fiber recovery device.
[0021] Figure 2 Fig. 1 is a schematic diagram of the internal structure of a papermaking white water fiber recovery device;
[0022] Figure 3 Fig. 2 is a schematic diagram of the structure of a filter plate;
[0023] Figure 4 Fig. 3 is a schematic diagram of the structure of a water distribution pipe.
[0024] [Reference Signs]
[0025] 1, recovery tank; 101, recovery port; 102, water injection bucket; 103, drain pipe; 2, recovery groove; 201, backflow pipe; 3, filter plate; 301, handle; 4, auger; 401, servo motor; 5, base; 6, water distribution pipe; 601, air nozzle; 7, air pump; 701, hose; 8, air diffuser grid.
[0026] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment. According to the specific needs, those skilled in the art can adjust or modify these devices and environments. DETAILED DESCRIPTION
[0027] The papermaking white water fiber recovery device provided by the present application will be described in detail below in combination with the drawings and specific embodiments. It should be noted that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement them; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.
[0028] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the related art to realize this feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).
[0029] Generally, terms can be understood to be contextually defined from usage. For example, the term "one or more" as used herein, depending at least in part upon the context, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily being confined to a set of exclusive factors, but rather, can instead allow for existence of additional factors not explicitly described, again depending at least in part on the context.
[0030] It is to be understood that the terms "on", "over", and "above" in the present application should be interpreted in the broadest possible way such that "on" not only means "directly on" but also includes the meaning of being "on" with intervening features or layers therebetween, and "over" or "above" not only means "over" or "above" but also can include the meaning of being "over" or "above" without intervening features or layers therebetween.
[0031] In addition, spatially relative terms, such as "under", "below", "lower", "over", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can likewise be interpreted accordingly.
[0032] As Figure 1 With Figure 2 As shown in the utility model discloses a papermaking white water fiber recovery device, including recovery pool 1, the middle part side of recovery pool 1 is connected with water injection hopper 102, the upper end of water injection hopper 102 is not lower than the top position of recovery pool 1, and the bottom side of recovery pool 1 is installed with sewage pipe 103, and the valve is arranged on sewage pipe 103.
[0033] And the upper end of recovery pool 1 is installed with horizontal auger 4, the top of recovery pool 1 is correspondingly provided with recovery port 101 at the output end of auger 4, recovery groove 2 is connected outside recovery port 101, horizontal filter plate 3 is installed in the middle part of recovery groove 2, and backflow pipe 201 is installed at the bottom of recovery groove 2. Specifically, the upper end of recovery pool 1 is the strip-shaped opening matched with auger 4, one end of auger 4 away from recovery port 101 is stretched out of recovery pool 1 and is connected with servo motor 401.
[0034] At the same time, cooperate Figure 4As shown, the bottom end of the recovery tank 1 is fixed with a base 5, a water distribution pipe 6 is installed in the base 5, one section of the water distribution pipe 6 is uniformly distributed at the bottom of the recovery tank 1, a plurality of air nozzles 601 are uniformly arranged on the water distribution pipe 6, and a horizontal air diffuser grid 8 is also installed at the bottom of the recovery tank 1 and located above the water distribution pipe 6. An air pump 7 is installed on the outside of the recovery tank 1, the air pump 7 is connected with a hose 701, the hose 701 extends into the base 5 and communicates with the water distribution pipe 6.
[0035] In addition, as shown in the drawings, Figure 3 As shown, the upper end surface of the filter plate 3 is fixed with a handle 301 on both sides in a symmetrical manner.
[0036] The working principle of the papermaking white water fiber recovery device is that when in use, the water distribution pipe 6 and the air nozzle 601 are uniformly arranged at the bottom of the recovery tank 1, air bubbles can be uniformly generated in the recovery tank 1, the air diffuser grid 8 installed above the water distribution pipe 6 can further break the aggregation state of the air bubbles, the air bubbles are further refined and uniformly diffused to the surrounding, and therefore the air floatation efficiency is ensured, the overall recovery efficiency of the fibers in the papermaking white water is improved.
[0037] Meanwhile, the floating fibers can be pushed into the recovery groove 2 by the rotation of the auger 4 in the upper port of the recovery tank 1, and the fibers are collected by the filter plate 3. In this process, the continuous pushing of the auger 4 can avoid the fibers from staying on the water surface for a long time and re-settling, and the stirring action of the auger 4 is also beneficial to the aggregation of the small fibers that are difficult to effectively attach air bubbles and float, or the mutual entanglement of the small fibers with other fibers that have attached air bubbles, so that the small fibers are taken to the water surface together and collected by the auger 4, and the overall recovery rate of the fibers is improved.
[0038] In summary, the air bubbles are more uniform when the fibers are floated, the overall recovery effect of the fibers is better, and the recovery efficiency is higher.
[0039] The utility model covers any alternative, modification, equivalent method and scheme which is made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiments of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.
[0040] The above only is the preferred implementation mode of the utility model, should point out, for ordinary skill in the art of the present technology, on the premise that without departing from the principle of the utility model, still can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model.
Claims
1. A papermaking white water fiber recycling device, comprising a recycling tank (1), characterized in that, A horizontal auger (4) is installed at the upper port of the recycling pool (1). A recycling port (101) is opened at the top of the recycling pool (1) corresponding to the output end of the auger (4). A recycling trough (2) is connected to the outside of the recycling port (101). A horizontal filter plate (3) is installed in the middle of the recycling trough (2). A base (5) is fixed at the bottom of the recycling pool (1). A water distribution pipe (6) is installed in the base (5). One section of the water distribution pipe (6) is evenly distributed at the bottom of the recycling pool (1). Several air nozzles (601) are evenly arranged on the water distribution pipe (6). A horizontal air diffuser (8) is also installed at the bottom of the recycling pool (1). The air diffuser (8) is located above the water distribution pipe (6).
2. The papermaking white water fiber recovery device according to claim 1, characterized in that, The upper port of the recycling pool (1) is a strip-shaped opening adapted to the auger (4). The end of the auger (4) away from the recycling port (101) extends out of the recycling pool (1) and is connected to a servo motor (401).
3. The papermaking white water fiber recovery device according to claim 1, characterized in that, A water injection hopper (102) is connected to the middle side of the recycling pool (1), and the upper port of the water injection hopper (102) is not lower than the top position of the recycling pool (1).
4. The papermaking white water fiber recovery device according to claim 1, characterized in that, A drain pipe (103) is installed on the bottom side of the recycling pool (1), and a valve is provided on the drain pipe (103).
5. The papermaking white water fiber recovery device according to claim 1, characterized in that, A return pipe (201) is installed at the bottom of the recycling tank (2).
6. The papermaking white water fiber recovery device according to claim 1, characterized in that, An air pump (7) is installed on the outside of the recycling pool (1). The air pump (7) is connected to a hose (701). The hose (701) extends into the base (5) and is connected to the water distribution pipe (6).
7. The papermaking white water fiber recovery device according to claim 1, characterized in that, The filter plate (3) has handles (301) fixed symmetrically on both sides of its upper end face.