A papermaking wastewater sedimentation recovery device

Abstract

The utility model belongs to papermaking wastewater treatment technical field, concretely relates to a kind of papermaking wastewater precipitation recovery device, including sediment tank, hydraulic rod is fixedly connected on the two side walls of sediment tank, the telescopic end of two hydraulic rods is fixedly connected with same lifting plate, the bottom end of lifting plate is also fixedly connected with two symmetrically arranged guide plates.The papermaking wastewater precipitation recovery device of the utility model, as shown in figure one, its papermaking wastewater is concentrated in the top of filter screen after being precipitated in the sediment tank, and when the pull-out plate needs to be pulled out at this time, it can be directly pulled out manually at this time, while being pulled out in the first insertion channel opened in the two inner walls of U-shaped frame, it is also pulled out from the second insertion channel opened in the two guide plates, while being pulled out, two transmission columns are respectively moved outward in the Z-shaped transmission channel opened in the corresponding Z-shaped transmission rod, and the design of Z-shaped transmission channel and two guide plates is matched.

Description

Technical Field

[0001] This utility model belongs to the field of papermaking wastewater treatment technology, specifically relating to a papermaking wastewater sedimentation and recovery device. Background Technology

[0002] In the papermaking industry, wastewater contains a large amount of pulp fibers (paper scraps), which need to be recycled through processes such as sedimentation and filtration. Existing papermaking wastewater sedimentation and recovery devices typically use filter screens to intercept paper scraps, but these devices have the following problems in practical use: Wastewater leakage during filter replacement: When the filter screen traps a certain amount of paper scraps, it needs to be removed for cleaning or replacement. However, the paper scraps still contain a lot of moisture. When the filter screen is removed, the moisture drips onto the ground along with the paper scraps, which not only increases the difficulty of cleaning but also wastes wastewater and affects recycling efficiency.

[0003] Lack of efficient dewatering structure: Existing devices usually rely on gravity for natural drainage, which cannot effectively squeeze and dewater paper scraps before the filter screen is pulled out. This results in high moisture content in the paper scraps, increasing the burden of subsequent transportation or processing. Therefore, there is an urgent need for a papermaking wastewater sedimentation and recovery device that can simultaneously squeeze and dewater when the filter screen is pulled out, reducing wastewater dripping, in order to improve the wastewater recovery rate and reduce maintenance costs.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a papermaking wastewater sedimentation and recycling device to solve the problem that existing technologies rely solely on gravity for natural drainage, which cannot effectively squeeze and dehydrate paper scraps before the filter screen is removed, resulting in high moisture content in the paper scraps.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A papermaking wastewater sedimentation and recovery device includes a sedimentation tank. Hydraulic rods are fixed to both side walls of the sedimentation tank. A lifting plate is fixed to the telescopic ends of the two hydraulic rods. Two symmetrically arranged guide plates are fixed to the bottom of the lifting plate. The guide plates slide within a lifting groove on the inner wall of the sedimentation tank. A U-shaped frame is fixed between the two lifting plates. A single drawer plate is movably inserted into the inner walls of both sides of the U-shaped frame. A filter screen is fixed to the inner wall of the drawer plate. A drive motor is fixed to the top center of the lifting plate. The output shaft of the drive motor extends to the bottom of the lifting plate and is fixed to a stirring shaft. Multiple equidistant stirring blades are fixed to the outer side of the stirring shaft. A pull-out extrusion assembly is installed at the top opening of the sedimentation tank, and the pull-out extrusion assembly is also connected to the drawer plate.

[0007] Preferably, the bottom end of the lifting plate is flush with the bottom end of the drawer plate, the vertical cross-section of the drawer plate has a convex structure, and the inner walls on both sides of the U-shaped frame are provided with a first insertion channel that matches the inner walls of the drawer plate.

[0008] Preferably, the top cross-section of the sedimentation tank is larger than the bottom cross-section of the sedimentation tank.

[0009] Preferably, the pull-out extrusion assembly includes two symmetrically arranged slide rods fixedly connected inside the pull plate, two symmetrically arranged extrusion plates movably sleeved on the outer sides of the two slide rods, a transmission column fixedly connected to the front edge of the top of each of the two extrusion plates, and a hand-tightening screw threadedly connected to the inner side of each of the two transmission columns. The bottom end of each hand-tightening screw movably passes through the extrusion plate and abuts against the top of the filter screen.

[0010] Preferably, a Z-shaped transmission rod is movably sleeved on the outer side of each of the two transmission columns. Each Z-shaped transmission rod has a Z-shaped transmission channel that cooperates with the transmission column. The opposite sidewalls of the two Z-shaped transmission rods are fixed to the top of the sedimentation tank by a first inverted L-shaped connecting rod and a second inverted L-shaped connecting rod. The front ends of the two Z-shaped transmission channels extend outward and communicate with each other.

[0011] Preferably, each of the two second inverted L-shaped connecting rods is further provided with an outlet plate fixed to the inner wall of the top opening of the sedimentation tank, and each of the two outlet plates has a second insertion channel on one side wall facing each other that is adapted to the two side walls of the draw plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The papermaking wastewater sedimentation and recovery device of this utility model, as shown in the attached figure. Figure 1 As shown, the papermaking wastewater settles in the sedimentation tank and concentrates at the top of the filter screen. When the pull plate needs to be pulled out, it can be pulled out manually. At the same time, the pull plate is pulled out from the first insertion channel on the inner wall of both sides of the U-shaped frame and from the second insertion channel on the two guide plates. Simultaneously, the two transmission columns move outward in the Z-shaped transmission channels on the corresponding Z-shaped transmission rods. With the design of the Z-shaped transmission channels and the two guide plates, the two squeezing plates, after the hand-tightening screws are loosened, can be pulled out along with the pull plate and move in opposite directions. This allows the paper scraps settled on the surface of the filter screen to be squeezed, thereby squeezing out the water from the paper scraps. This allows for simultaneous squeezing and dewatering when the filter screen is pulled out, reducing wastewater dripping, improving wastewater recovery rate, and reducing maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional first-view structure of this utility model; Figure 2 This is a schematic diagram of the overall three-dimensional second-view structure of this utility model; Figure 3 This is an enlarged structural diagram of point A of this utility model; Explanation of key figure labels: 1. Sedimentation tank; 11. Hydraulic rod; 12. Lifting plate; 13. Guide plate; 131. U-shaped frame; 132. Lifting groove; 133. First insertion channel; 14. Drive motor; 15. Stirring shaft; 151. Stirring blade; 16. Pull-out plate; 161. Filter screen; 2. Pull-out extrusion assembly; 21. Outlet plate; 22. Second insertion channel; 23. Extrusion plate; 24. First inverted L-shaped connecting rod; 25. Z-shaped transmission rod; 26. Z-shaped transmission channel; 27. Second inverted L-shaped connecting rod; 28. Slide rod; 29. ​​Transmission column; 210. Hand-tightening screw. Detailed Implementation

[0014] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] See attached document Figure 1-3A papermaking wastewater sedimentation and recycling device includes a sedimentation tank 1. Hydraulic rods 11 are fixed to both side walls of the sedimentation tank 1. The telescopic ends of the two hydraulic rods 11 are fixed to the same lifting plate 12. Two symmetrically arranged guide plates 13 are also fixed to the bottom end of the lifting plate 12. The guide plates 13 slide in the lifting grooves 132 opened in the inner wall of the sedimentation tank 1. The same U-shaped frame 131 is fixed between the two lifting plates 12. The same draw plate 16 is movably inserted into the inner walls of both sides of the U-shaped frame 131. A filter screen 161 is fixed to the inner wall of the draw plate 16. A drive motor 14 is fixed to the top center of the lifting plate 12. The output shaft of the drive motor 14 extends to the bottom of the lifting plate 12 and is fixed to a stirring shaft 15. Multiple equidistant stirring blades 151 are fixed to the outer side of the stirring shaft 15. A pull-out extrusion assembly 2 is installed at the top opening of the sedimentation tank 1, and the pull-out extrusion assembly 2 is also connected to the draw plate 16.

[0018] Activating the two hydraulic rods 11 will cause the lifting plate 12 to move down, and the two guide plates 13 will move down in the lifting groove 132 until the bottom of the pull plate 16 and the bottom of the guide plate 13 are completely attached to the inner bottom wall of the sedimentation tank 1. The driving motor 14 drives the stirring shaft 15 to rotate multiple stirring blades 151, thereby mixing and stirring the papermaking wastewater and flocculant, increasing the sedimentation speed. A drain pipe with an electric valve is fixedly connected to the outlet at the center of the bottom of the sedimentation tank 1. This is not shown in the attached drawing and is existing technology, which does not affect the implementation of the overall scheme.

[0019] Furthermore, such as Figure 1-3 As shown, the bottom end of the lifting plate 12 is flush with the bottom end of the drawer plate 16. The vertical cross section of the drawer plate 16 has a convex structure. The inner walls of both sides of the U-shaped frame 131 are provided with first insertion channels 133 that are adapted to the two side walls of the drawer plate 16.

[0020] Furthermore, such as Figure 1-3 As shown, the top cross-section of sedimentation tank 1 is larger than the bottom cross-section of sedimentation tank 1.

[0021] Below the two guide plates 13 fixed to the top opening of the sedimentation tank 1, there is an inclined surface. This setting is to facilitate the sediment to slide down the inclined surface and concentrate on the surface of the filter screen 161. It is also to facilitate the use of the pull-out plate 16 to squeeze the wastewater in the paper scraps and prevent it from dripping when it is pulled out, so that the squeezed water can be recycled back into the sedimentation tank 1 and avoid water waste.

[0022] Furthermore, such as Figure 1-3As shown, in order to simultaneously squeeze out the moisture from the paper scraps intercepted on the surface of the filter screen 161 while the drawer plate 16 is being pulled out, a pull-out extrusion assembly 2 is provided. This assembly includes two symmetrically arranged sliding rods 28 fixedly connected inside the drawer plate 16. Two symmetrically arranged extrusion plates 23 are movably sleeved on the outer sides of the two sliding rods 28. A drive column 29 is fixedly connected to the front edge of the top of each extrusion plate 23. A hand-tightening screw 210 is threaded onto the inner side of each drive column 29. The bottom end of each hand-tightening screw 210 movably penetrates the extrusion plate 23 and abuts against the top of the filter screen 161. The outer sides of the two drive columns 29... Each side is equipped with a Z-shaped transmission rod 25, and each Z-shaped transmission rod 25 has a Z-shaped transmission channel 26 that cooperates with the transmission column 29. The opposite side walls of the two Z-shaped transmission rods 25 are fixed to the top of the sedimentation tank 1 through a first inverted L-shaped connecting rod 24 and a second inverted L-shaped connecting rod 27. The front ends of the two Z-shaped transmission channels 26 extend outward and communicate with each other. Below the two second inverted L-shaped connecting rods 27, there is also an outlet plate 21 fixed to the inner wall of the top opening of the sedimentation tank 1. The opposite side walls of the two outlet plates 21 have a second insertion channel 22 that matches the two side walls of the draw plate 16.

[0023] The inner width of the Z-shaped transmission channel 26 is equal to the diameter of the transmission column 29, which prevents the extrusion plate 23 from moving left and right outside the slide bar 28 and affecting the stability of the extrusion plate 23. At the same time, the setting of the hand screw 210 can lock the position of the extrusion plate 23 by tightening, so as to avoid the problem that the pull plate 16 cannot be located in the Z-shaped transmission channel 26 after it moves up.

[0024] In actual use, as shown in the attached document Figure 1 As shown, the papermaking wastewater settles in the sedimentation tank 1 and is concentrated on the top of the filter screen 161. When the pull plate 16 needs to be pulled out, it can be pulled out manually. At the same time, the pull plate 16 is pulled out from the first insertion channel 133 opened on the inner wall of both sides of the U-shaped frame 131 and from the second insertion channel 22 opened on the two guide plates 13. At the same time, the two transmission columns 29 move outward in the Z-shaped transmission channel 26 opened on the corresponding Z-shaped transmission rod 25. With the design of the Z-shaped transmission channel 26 and the two guide plates 21, the two squeezing plates 23 after the loosening of the hand screws 210 can be pulled out with the pull plate 16 and move in opposite directions. They can squeeze the paper scraps settled on the surface of the filter screen 161, thereby squeezing out the water in the paper scraps. Thus, when the filter screen 161 is pulled out, it can be squeezed and dehydrated simultaneously, reducing wastewater dripping, thereby improving the wastewater recovery rate and reducing maintenance costs.

[0025] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A papermaking wastewater sedimentation and recovery device, comprising a sedimentation tank (1), wherein hydraulic rods (11) are fixedly connected to both side walls of the sedimentation tank (1), and the telescopic ends of the two hydraulic rods (11) are fixedly connected to the same lifting plate (12), and the bottom end of the lifting plate (12) is also fixedly connected to two symmetrically arranged guide plates (13), the guide plates (13) slide in the lifting groove (132) opened in the inner wall of the sedimentation tank (1), the two lifting plates (12) are fixedly connected to the same U-shaped frame (131), the two sides of the inner wall of the U-shaped frame (131) are movably inserted with the same draw plate (16), the inner wall of the draw plate (16) is fixedly connected to a filter screen (161), the top center of the lifting plate (12) is fixedly connected to a drive motor (14), the output shaft of the drive motor (14) extends to the bottom of the lifting plate (12) and is fixedly connected to a stirring shaft (15), and the outer side of the stirring shaft (15) is fixedly connected to a plurality of equidistant stirring blades (151), characterized in that, The top opening of the sedimentation tank (1) is equipped with a pull-out extrusion assembly (2), and the pull-out extrusion assembly (2) is also connected to the pull plate (16).

2. The papermaking wastewater sedimentation and recovery device according to claim 1, characterized in that, The bottom end of the lifting plate (12) is flush with the bottom end of the draw plate (16). The vertical cross section of the draw plate (16) is convex. The inner walls of both sides of the U-shaped frame (131) are provided with first insertion channels (133) that are adapted to the inner walls of both sides of the draw plate (16).

3. The papermaking wastewater sedimentation and recovery device according to claim 2, characterized in that, The top cross-section of the sedimentation tank (1) is larger than the bottom cross-section of the sedimentation tank (1).

4. The papermaking wastewater sedimentation and recovery device according to claim 3, characterized in that, The pull-out extrusion assembly (2) includes two symmetrically arranged slide rods (28) fixedly connected inside the pull plate (16). Two symmetrically arranged extrusion plates (23) are movably sleeved on the outer side of the two slide rods (28). A transmission column (29) is fixedly connected to the front edge of the top of each of the two extrusion plates (23). A hand screw (210) is threadedly connected to the inner side of each of the two transmission columns (29). The bottom end of each hand screw (210) moves through the extrusion plate (23) and abuts against the top of the filter screen (161).

5. The papermaking wastewater sedimentation and recovery device according to claim 4, characterized in that, Z-shaped transmission rods (25) are movably sleeved on the outer sides of the two transmission columns (29). Each Z-shaped transmission rod (25) has a Z-shaped transmission channel (26) that cooperates with the transmission column (29). The opposite side walls of the two Z-shaped transmission rods (25) are fixed to the top of the sedimentation tank (1) by the first inverted L-shaped connecting rod (24) and the second inverted L-shaped connecting rod (27). The front ends of the two Z-shaped transmission channels (26) extend outward and communicate with each other.

6. The papermaking wastewater sedimentation and recovery device according to claim 5, characterized in that, Below the two second inverted L-shaped connecting rods (27), there is also an outlet plate (21) fixed to the inner wall of the top opening of the sedimentation tank (1). On the opposite side wall of the two outlet plates (21), there is a second insertion channel (22) that is adapted to the two side walls of the draw plate (16).

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