Filtering and impurity removing device for paper pulp production

Abstract

The utility model relates to the technical field of papermaking pulp processing equipment, and discloses a filtering and impurity removing device for pulp production, which comprises a deslagging separator body, a guide chute connected to the deslagging separator body and a base connected to the bottom of the deslagging separator body. Efficient concentrated compression treatment on fibers and other impurities discharged into the recycling box is achieved, the space volume occupied by the impurities is remarkably reduced through the design, and then the overall utilization rate of the space is increased; through cooperative cooperation of the material blocking plate and the pressing plate, it is ensured that when the pressing plate compresses impurities such as fibers, the impurities falling from the material guiding groove can be effectively blocked, the situation that the impurities directly fall on the pressing plate and are not collected is avoided, the comprehensiveness and efficiency of impurity collection are improved through the design, the smoothness and accuracy of the whole compression treatment process are ensured, and the practicability is high. And the practicability and the reliability of the equipment are further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of papermaking pulp processing equipment, specifically a filtration and impurity removal device for pulp production. Background Technology

[0002] Pulp production forms an indispensable link in the industrial production chain, serving as the foundation for manufacturing various types of paper and paperboard. In this process, recyclable resources such as waste cardboard boxes are widely utilized to produce recycled pulp. However, these raw materials often contain unwanted impurities. To ensure the high quality of the final pulp product, efficient filtration and removal of these impurities is crucial. Against this backdrop, the slag separator, as a commonly used piece of equipment, plays a vital role in pulp production and is widely used to effectively separate impurities such as fibers.

[0003] The patent with publication number CN207430872U discloses a slag separator body, including an upper cover, a base, a main shaft, a screen plate, a transmission device, a spray washing device, a packing sealing device, and a bearing device. The spray washing device is connected above the upper cover. The screen plate is located below the main shaft and connected to the slag discharge space. The transmission device and the bearing device are located outside the slag discharge space. The main shaft is connected to the upper cover and the base through the packing sealing device. The main shaft includes slurry sweeping blades axially arranged on the main shaft and intermittently spirally arranged sorting blades. The slurry sweeping blades are blade-type blades.

[0004] The above-mentioned device still has the following shortcomings: After being processed by the slag separator, fibers and other impurities will be smoothly discharged from the outside of the machine through a specific discharge port along the guide chute. However, after being discharged, these impurities will gradually accumulate and continuously expand in volume, forming a dense accumulation, which not only significantly reduces the space utilization efficiency, but also leads to frequent manual intervention requirements. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a filtration and impurity removal device for pulp production, which facilitates the compression of filtered impurities to reduce space occupation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filtration and impurity removal device for pulp production, comprising a slag separator body, a guide trough connected to the slag separator body, and a base connected to the bottom of the slag separator body. A recycling box is installed on the base, and a groove is provided on the recycling box. The guide trough is connected to the recycling box by embedding into the groove. A bracket is installed on one side of the recycling box, and a cylinder push rod is installed on the bracket. A pressure plate is fixed to the end of the cylinder push rod.

[0007] Furthermore, a baffle plate is fixedly attached to the pressure plate to prevent the filtered material from falling onto the surface of the pressure plate.

[0008] Furthermore, the baffle plate is larger than the opening of the guide trough, the baffle plate is in close contact with the surface of the opening of part of the guide trough in the embedded groove, and the baffle plate is in close contact with the inner wall of the recycling bin with the embedded groove.

[0009] Furthermore, a water storage tank is fixed to the side wall of the recycling bin, a filter screen is installed on the side wall where the recycling bin is connected to the water storage tank, a water supply pipe is installed on the side wall of the water storage tank, and a valve is installed on the water supply pipe.

[0010] Furthermore, the baffle plate and the pressure plate are detachably connected.

[0011] Furthermore, the filter screen is detachably connected to the recycling tank and the water storage tank. Furthermore, the bottom surface of the pressure plate is chamfered.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model achieves efficient centralized compression of fibers and other impurities discharged into the recycling box through the cooperation of the guide trough, recycling box, cylinder push rod and pressure plate. This design significantly reduces the space volume occupied by impurities, thereby improving the overall space utilization rate. The structure is simple, easy to operate and highly practical.

[0014] 2. This utility model, through the coordinated operation of the baffle plate and the pressure plate, ensures that when the pressure plate compresses impurities such as fibers, it can effectively block the impurities falling from the guide trough, preventing them from falling directly onto the pressure plate and being missed for collection. This design not only enhances the comprehensiveness and efficiency of impurity collection, but also ensures the smoothness and precision of the entire compression process, further improving the practicality and reliability of the equipment. 3. This utility model, through the coordinated operation of the water storage tank, pressure plate, filter screen, and water supply pipe, effectively squeezes out the water contained in the impurities such as fibers when compressing them, and guides it smoothly into the water storage tank through the filter screen, while the fibers and other impurities remain in the recycling tank. At the same time, the efficient operation of the water supply pipe ensures the smoothness and convenience of the wastewater collection process, which not only improves the purity of resource recovery, but also enhances the environmental friendliness and practicality of wastewater treatment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the cylinder push rod and pressure plate of this utility model when they are fully pressed down.

[0017] Figure 3This is a three-dimensional structural diagram of the cylinder push rod and pressure plate of this utility model when fully raised;

[0018] Figure 4 This is a three-dimensional structural diagram of the baffle plate and filter screen of this utility model; Figure 5 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Slag separator body; 2. Base; 3. Feed chute; 4. Recycling box; 5. Water tank; 6. Embedded groove; 7. Support; 8. Cylinder push rod; 9. Pressure plate; 10. Baffle plate; 11. Filter screen; 12. Water supply pipe; 13. Valve. 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] like Figures 1 to 5 As shown, a filtration and impurity removal device for pulp production includes a slag separator body 1, a guide trough 3 connected to the slag separator body 1, and a base 2 connected to the bottom of the slag separator body 1. A recycling box 4 is installed on the base 2, and a groove 6 is provided on the recycling box 4. The guide trough 3 is connected to the recycling box 4 by embedding in the groove 6. A bracket 7 is installed on one side of the recycling box 4, and a cylinder push rod 8 is installed on the bracket 7. A pressure plate 9 is fixed to the end of the cylinder push rod 8.

[0022] like Figure 1 As shown, the pulp production filtration and impurity removal device of this utility model is similar in structure to the existing slag separator body. For example, patent publication number CN207430872U discloses a slag separator body. The main improvement of this utility model is that it facilitates the compression of impurities after filtration to reduce the space occupied. Figures 1 to 5 As shown, in the pulp production filtration and impurity removal device of this utility model, when impurities such as fibers continuously enter the recycling bin 4 through the guide trough 3, after a period of recycling, the cylinder push rod 8 is activated to drive the pressure plate 9 to compress the accumulated fibers and other impurities. This significantly reduces the space occupied by these impurities and greatly improves the overall space utilization efficiency. This process design ensures both maximum compression effect and ease of operation and high efficiency. It is worth noting that the groove 6 and the guide trough 3 fit perfectly. Once the guide trough 3 is placed on the groove 6, its inclined surface can seamlessly fit the inner wall of the recycling bin 4. This design not only ensures a stable connection between the guide trough 3 and the recycling bin 4 but also optimizes the material flow path, allowing impurities such as fibers to smoothly and unobstructedly enter the recycling bin 4.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a baffle plate 10 is fixed to the pressure plate 9 to prevent filter material from falling onto the surface of the pressure plate 9.

[0024] Specifically, when the cylinder push rod 8 drives the pressure plate 9 to press down, the baffle plate 10 precisely covers the opening of the guide groove 3, preventing impurities from falling onto the surface of the pressure plate 9. This design not only ensures the smooth progress of the compression process but also maintains a clean and efficient working environment. It is worth noting that when the cylinder push rod 8 extends to its limit position, the pressure plate 9 descends to the lowest point of its stroke. At the same time, the baffle plate 10 precisely and completely covers the opening of the guide groove 3. Conversely, when the cylinder push rod 8 retracts completely, the pressure plate 9 and the baffle plate 10 rise together above the guide groove 3, preparing for the next operation. Specifically, when the pressure plate 9 of this device presses down on impurities, the baffle plate 10 moves accordingly. The deeper the pressure, the more the baffle plate 10 gradually covers the guide groove 3 until it is completely covered. This mechanism ensures a seamless connection between the compression operation and the material introduction process, which is both efficient and safe, while also effectively preventing impurities from falling onto the pressure plate 9.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the baffle plate 10 is larger than the opening of the guide groove 3. The baffle plate 10 is in close contact with the surface of the opening of part of the guide groove 3 in the embedded groove 6. The baffle plate 10 is in close contact with the inner wall of the recycling box 4 with the embedded groove 6. When the pressure plate 9 performs the compression operation, the baffle plate 10 can ensure that the filtered fibers and other impurities are completely blocked, thereby preventing these impurities from accidentally falling onto the pressure plate 9. This design mechanism effectively ensures the cleanliness and efficiency of the compression process and avoids the scattering of impurities and the contamination of the pressure plate 9.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a water storage tank 5 is fixed to the side wall of the recycling tank 4. A filter screen 11 is installed on the side wall of the recycling tank 4 connected to the water storage tank 5. A water supply pipe 12 is installed on the side wall of the water storage tank 5. A valve 13 is installed on the water supply pipe 12.

[0027] Specifically, when the pressure plate 9 performs the compression operation, impurities such as fibers containing moisture are squeezed out during the compression process. This moisture passes through the filter screen 11, while the impurities are effectively trapped inside the recovery tank 4. At the same time, the squeezed-out wastewater flows smoothly into the water storage tank 5. The water storage tank 5 collects and treats the wastewater in an orderly manner through a dedicated water pipe 12. In order to precisely control the flow rate of the wastewater, the system is equipped with a valve 13 to flexibly adjust the flow rate of the wastewater according to actual needs. This design not only ensures the effective separation of impurities but also achieves proper wastewater management. It is worth noting that the surface of the filter screen 11 is also coated with a wear-resistant metal coating to prevent the pressure plate 9 from damaging the filter screen 11 when it slides in contact with it. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the baffle plate 10 and the pressure plate 9 are detachably connected, which facilitates the installation, disassembly, and maintenance of the baffle plate 10. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the filter screen 11 is detachably connected to the recycling box 4 and the water storage tank 5, which facilitates the installation, disassembly and maintenance of the filter screen 11.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom surface of pressure plate 9 is chamfered.

[0029] Specifically, during the compression process, the chamfer of the pressure plate 9 cleverly scrapes the surface of the filter screen 11, effectively removing accumulated fibers and other impurities. These scraped impurities then merge with the existing impurities in the recycling bin 4 and undergo further compression by the pressure plate 9. This design not only improves the cleaning efficiency of the filter screen 11 but also ensures that the compression operation can be carried out continuously and efficiently. It is worth noting that the sidewalls of the pressure plate 9 also need to be smooth, which can significantly reduce frictional resistance and thus help reduce energy consumption. During the compression operation, the smooth sidewalls allow the pressure plate 9 to move more smoothly, thereby effectively improving the compression efficiency. In addition, due to the reduction of friction, the wear of the pressure plate 9 and contact parts is also reduced, which directly extends the service life of the equipment. Therefore, it reduces the need for replacement and maintenance due to wear and further reduces the overall operating cost.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filtration and impurity removal device for pulp production, comprising a slag separator body (1), a feed chute (3) connected to the slag separator body (1), and a base (2) connected to the bottom of the slag separator body (1), characterized in that, A recycling bin (4) is installed on the base (2). A groove (6) is provided on the recycling bin (4). The guide groove (3) is connected to the recycling bin (4) by embedding into the groove (6). A bracket (7) is installed on one side of the recycling bin (4). A cylinder push rod (8) is installed on the bracket (7). A pressure plate (9) is fixed to the end of the cylinder push rod (8).

2. The filtration and impurity removal device for pulp production according to claim 1, characterized in that, A baffle plate (10) is fixedly attached to the pressure plate (9) to prevent the filter material from falling onto the surface of the pressure plate (9).

3. The filtration and impurity removal device for pulp production according to claim 2, characterized in that, The baffle plate (10) is larger than the opening of the guide groove (3). The baffle plate (10) is in close contact with the surface of the opening of part of the guide groove (3) in the embedded groove (6). The baffle plate (10) is in close contact with the inner wall of the recycling box (4) with the embedded groove (6).

4. A filtration and impurity removal device for pulp production according to claim 1, 2, or 3, characterized in that, A water storage tank (5) is fixed to the side wall of the recycling box (4). A filter screen (11) is installed on the side wall of the recycling box (4) connected to the water storage tank (5). A water supply pipe (12) is installed on the side wall of the water storage tank (5). A valve (13) is installed on the water supply pipe (12).

5. A filtration and impurity removal device for pulp production according to claim 2 or 3, characterized in that, The baffle plate (10) and the pressure plate (9) are detachably connected.

6. A filtration and impurity removal device for pulp production according to claim 4, characterized in that, The filter screen (11) is detachably connected to the recycling box (4) and the water storage tank (5).

7. A filtration and impurity removal device for pulp production according to claim 1, 2, 3 or 6, characterized in that, The bottom surface of the pressure plate (9) is chamfered.

8. A filtration and impurity removal device for pulp production according to claim 4, characterized in that, The bottom surface of the pressure plate (9) is chamfered.

9. A filtration and impurity removal device for pulp production according to claim 5, characterized in that, The bottom surface of the pressure plate (9) is chamfered.

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