A combined pulp slurry whitewater tower

Abstract

The utility model discloses a compound formula pulping white water tower, including the tower body, the tower body lower extreme is provided with the blanking tube of valve, the blanking tube lower extreme is provided with the processing box, is provided with multiple symmetrical slide rails in processing box, is provided with the slide strip of damper sliding connection with in the slide rail, all be provided with the filter box between two slide strips, the filter box with processing box adaptation, the filter box bottom wall is provided with the filter screen that distributes from big to small, processing box bottom wall is provided with the drain pipe of drain valve, be provided with the scattering subassembly in the tower body, processing box bottom wall inboard is provided with the cleaning subassembly, ensure broken knife to carry out cutting, dissociation from different angles to the fibre mass, complete the cleaning of filter screen fast, make the equipment maintenance more convenient, safe.

Description

Technical Field

[0001] This utility model relates to the field of pulping technology, and more specifically, to a composite pulping white water tower. Background Technology

[0002] In the existing pulp and paper industry, "white water" is the core wastewater generated during pulp production. It contains a large amount of underutilized fine fibers, papermaking additives, and suspended impurities. Its recycling and treatment efficiency directly affects the raw material utilization rate, water cost, and environmental emission indicators of enterprises. At present, existing pulp white water towers and supporting treatment equipment still have many technical defects in practical applications.

[0003] First, the fibers in the pulping white water often form clumps of varying sizes due to water soaking and collision during transport. If they are not sufficiently broken up, they will not only clog the subsequent filtration components, but also make it difficult to effectively separate and recycle the fibers. As a result, a large amount of fibers will still be discharged with the wastewater in the form of clumps, causing waste of raw materials and increasing the frequency of equipment maintenance.

[0004] Secondly, mainstream white water towers use a single-layer filter screen fixedly installed inside the treatment box. With a fixed filter screen pore size, it is difficult to achieve graded filtration based on the differences in the particle size of impurities in the white water, further reducing the filtration and classification effect.

[0005] In addition, after the water is filtered, some impurities that cannot pass through the filter (such as silt) will settle at the bottom of the treatment tank. If it is not cleaned for a long time, it will gradually accumulate and form a hard layer, which will not only occupy the effective volume of the treatment tank, but also affect the flow path of wastewater, reduce the subsequent purification efficiency, and affect the quality of circulating water. Utility Model Content

[0006] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a composite pulping white water tower to solve the technical problems mentioned in the background art, which are that it is difficult to achieve graded filtration based on the differences in the particle size of impurities in white water and that the fiber clumps will clog if not fully dispersed.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A composite pulping white water tower includes a tower body, a feed pipe with a valve at the lower end of the tower body, a processing box at the lower end of the feed pipe, multiple sets of symmetrical slide rails inside the processing box, slide rails with damping sliding connections to each slide rail, a filter box between each two slide rails, the filter box being adapted to the processing box, filter screens of decreasing size distributed on the bottom wall of the filter box, a drain pipe with a drain valve on the bottom wall of the processing box, a dispersing component inside the tower body, and a cleaning component on the inner side of the bottom wall of the processing box.

[0008] The present invention is further configured such that the dispersing component includes a rotating rod and a crushing blade. The rotating rod is symmetrically arranged in the tower body, and the crushing blade is distributed in multiple groups on the side wall of the rotating rod. The upper side wall of the tower body is provided with a driving component for driving the dispersing component, which can fully disperse the fiber clumps in the white water and prevent the clumps from clogging subsequent structures.

[0009] The present invention is further configured such that the cleaning component includes a screw, a slide bar, a translation block, and a first motor. The screw and the slide bar are distributed parallel to each other at both ends of the bottom wall of the processing tank. One end of the translation block is threadedly connected to the screw, and the other end is slidably connected to the slide bar. The first motor is located on one side wall of the processing tank. One end of the screw is connected to the output end of the first motor. The lower end of the translation block is provided with cleaning bristles, which are in contact with the bottom wall of the processing tank, and can automatically clean the deposited impurities without requiring manual entry into the tank, thus reducing labor intensity.

[0010] The present invention is further configured such that the drive assembly includes a drive box, gears, a connecting belt, and a second motor. The drive box is located on the upper side wall of the tower body, and the gears are all located on the upper side wall of the rotating rod. The connecting belt connects and meshes with the two gears, and the second motor is located at one end of the drive box. One of the rotating rods is connected to the output end of the second motor, so as to realize the synchronous operation of the two rotating rods, reduce the number of power sources, and save energy.

[0011] The present invention is further configured such that a circulation pipe is provided on the bottom wall of the treatment tank, and a water pump is provided at the upper end of the circulation pipe. The output end of the water pump passes through the upper side wall of the tower body, which can pump the purified water in the treatment tank back to the tower body for reuse, thereby realizing water resource recycling.

[0012] The present invention is further provided with a connecting pipe at one end of the upper side wall of the tower body, which facilitates the connection between the tower body and the white water discharge system of the pulping production line.

[0013] The present invention is further provided with a handle on the front and side walls of the filter box. The handle is U-shaped and is welded and fixed to the filter box, which makes it convenient for operators to pull out the filter box for cleaning or replacement, thereby improving the ease of operation.

[0014] (III) Beneficial Effects Compared with the prior art, this utility model provides a composite pulping white water tower, which has the following beneficial effects: 1. The symmetrically arranged rotating rods inside the tower are equipped with multiple sets of crushing blades. Driven by the drive assembly, they can fully agitate and disperse the white water entering the tower. The second motor in the drive box drives the two rotating rods to operate synchronously through the linkage of gears and connecting belts, ensuring that the crushing blades cut and separate the fiber clumps from different angles, avoiding the fiber from being unable to be effectively separated due to tangling.

[0015] 2. The filter box inside the processing box is connected to the slide rail with damping. This connection method not only ensures the stability of the filter box during equipment operation and avoids displacement or slippage due to vibration, but also allows the operator to easily pull the filter box with the handle on the filter box to quickly complete the cleaning of the filter screen, fiber recovery or filter screen replacement.

[0016] 3. At the same time, the cleaning components on the inner side of the bottom wall of the processing tank can automatically clean the impurities deposited inside the tank, eliminating the need for manual entry into the narrow processing tank. This not only reduces labor intensity but also avoids the safety hazards of manual cleaning, making equipment maintenance more convenient and safer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the composite pulping white water tower in this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the composite pulping white water tower in this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the composite pulping white water tower in this utility model. Figure 3 ; Figure 4 This is a schematic diagram of the internal cross-section of the composite pulping white water tower in this utility model; Figure 5 This is a schematic diagram of the internal cross-section of the composite pulping white water tower treatment box in this utility model.

[0018] In the diagram: 1. Tower body; 2. Feed pipe; 3. Processing box; 4. Slide rail; 5. Slide bar; 6. Filter box; 7. Drain pipe; 8. Rotating rod; 9. Crusher; 10. Screw; 11. Slide bar; 12. Translation block; 13. First motor; 14. Drive box; 15. Gear; 16. Connecting belt; 17. Second motor; 18. Circulation pipe; 19. Water pump; 20. Connecting pipe; 21. Handle. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figure 1-5 A composite pulping white water tower includes a tower body 1, a feed pipe 2 with a valve at the lower end of the tower body 1, a processing box 3 at the lower end of the feed pipe 2, multiple sets of symmetrical slide rails 4 inside the processing box 3, slide bars 5 with damping sliding connection inside each slide rail 4, a filter box 6 between each two slide bars 5, the filter box 6 being adapted to the processing box 3, filter screens of decreasing size distributed on the bottom wall of the filter box 6, a drain pipe 7 with a drain valve on the bottom wall of the processing box 3, a dispersing component inside the tower body 1, and a cleaning component on the inner side of the bottom wall of the processing box 3.

[0023] The dispersing assembly includes a rotating rod 8 and a crushing blade 9. The rotating rod 8 is symmetrically arranged inside the tower body 1, and the crushing blade 9 is distributed in multiple groups on the side wall of the rotating rod 8. A driving assembly for driving the dispersing assembly is provided on the upper side wall of the tower body 1.

[0024] The drive assembly includes a drive box 14, gears 15, a connecting belt 16, and a second motor 17. The drive box 14 is located on the upper side wall of the tower body 1. All gears 15 are located on the upper side wall of the rotating rod 8. The connecting belt 16 connects and meshes with the two gears 15. The second motor 17 is located at one end of the drive box 14, and one of the rotating rods 8 is connected to the output end of the second motor 17.

[0025] A connecting pipe 20 is provided at one end of the upper side wall of the tower body 1.

[0026] In this embodiment, firstly, the white water generated by the pulping production line is introduced into the tower body 1 through the connecting pipe 20 on the upper side wall of the tower body 1. The second motor 17 in the drive assembly is started. The output end of the second motor 17 drives the rotating rod 8 connected to it to rotate. At the same time, through the meshing transmission of the gear 15 in the drive box 14 and the connecting belt 16, another rotating rod 8 rotates synchronously. The two symmetrically arranged rotating rods 8 drive multiple sets of crushing blades 9 on the side wall to rotate at high speed, which fully cuts and agitates the fiber clumps in the white water, breaking the tangled fibers into single or fine fiber bundles. After the white water is dispersed in the tower body 1, the valve on the feed pipe 2 is opened, allowing the fiber-containing mixture to flow into the lower treatment tank 3 through the feed pipe 2. After the mixture enters the treatment tank 3, the upper filter screen first intercepts larger fiber clumps and impurities, and then the lower filter screen gradually filters medium and fine fibers, realizing the graded separation of fibers and wastewater.

[0027] More specifically, when a certain amount of purified wastewater accumulates at the bottom of the treatment tank 3, the drain valve on the drain pipe 7 can be opened as needed to discharge the qualified wastewater for recycling. If circulation treatment is required, the wastewater can be pumped back to the tower body 1 for reprocessing through the circulation structure. Finally, the first motor 13 is started, which drives the screw 10 to rotate, causing the translation block 12 to move smoothly along the slide rod 11. The cleaning bristles at the lower end of the translation block 12 slide against the bottom wall of the treatment tank 3, sweeping the filter residue and sediment to the drain pipe 7 for discharge, thus avoiding the accumulation of impurities that affect the capacity and water quality of the treatment tank 3.

[0028] Please see Figures 1-5 As one embodiment of the cleaning component: the cleaning component includes a screw 10, a slide rod 11, a translation block 12, and a first motor 13. The screw 10 and the slide rod 11 are distributed parallel to each other at both ends of the bottom wall of the processing box 3. One end of the translation block 12 is threadedly connected to the screw 10, and the other end is slidably connected to the slide rod 11. The first motor 13 is located on one side wall of the processing box 3. One end of the screw 10 is connected to the output end of the first motor 13. The lower end of the translation block 12 is provided with cleaning bristles, which are in contact with the bottom wall of the processing box 3.

[0029] Specifically, when it is necessary to clean the impurities on the bottom wall of the treatment box 3, the first motor 13 is started, and the output end of the motor drives the screw 10 to rotate. Since one end of the translation block 12 is threadedly connected to the screw 10 and the other end is slidably connected to the slide rod 11, when the screw 10 rotates, it will drive the translation block 12 to move smoothly along the slide rod 11. The cleaning bristles at the lower end of the translation block 12 are in close contact with the bottom wall of the treatment box 3. During the movement of the translation block 12, the cleaning bristles will sweep the impurities deposited on the bottom wall (such as unfiltered fine particles, fiber residue, etc.) to the drain pipe 7, open the drain pipe 7 to discharge them, and avoid the accumulation of impurities affecting the normal use of the treatment box 3. After cleaning is completed, the first motor 13 reverses and drives the translation block 12 back to the initial position, waiting for the next cleaning operation.

[0030] Please see Figures 1-5 As one embodiment of the circulation pipe 18: the bottom wall of the treatment box 3 is provided with a circulation pipe 18, the upper end of the circulation pipe 18 is provided with a water pump 19, and the output end of the water pump 19 passes through the upper side wall of the tower body 1.

[0031] Specifically, after the white water in the treatment tank 3 has been filtered and purified, if it needs to be treated again or recycled, the water pump 19 is started. The water pump 19 generates suction to draw the purified white water from the bottom wall of the treatment tank 3 through the circulation pipe 18, and then sends the white water back to the tower body 1 through the output end of the water pump 19, so that the white water can go through the dispersing and subsequent filtration processes in the tower body 1 again, so as to realize the recycling of water resources and reduce the consumption of fresh water.

[0032] Please see Figures 1-5 As one embodiment of the handle 21: the filter box 6 is provided with a handle 21 on the front side wall. The handle 21 has a U-shaped structure and is welded and fixed to the filter box 6.

[0033] Specifically, the operator can directly hold the U-shaped handle 21 and, with the help of the damping sliding cooperation between the slide bars 5 on both sides of the filter box 6 and the slide rail 4 of the treatment box 3, smoothly pull the filter box 6 out of the treatment box 3.

[0034] In summary, when using the overall equipment: White water from the pulping production line is introduced into the tower body 1 through the connecting pipe 20 on the upper side wall of the tower body 1. The second motor 17 in the drive assembly is started. The output end of the second motor 17 drives the rotating rod 8 connected to it to rotate. At the same time, through the meshing gear 15 and connecting belt 16 in the drive box 14, another rotating rod 8 is driven to rotate synchronously. The two symmetrically arranged rotating rods 8 drive multiple sets of crushing blades 9 on the side wall to rotate at high speed, cutting and agitating the fiber clumps formed by soaking and entanglement in the white water in all directions, breaking them into dispersed fine fibers, and avoiding fiber clumping that would affect the subsequent filtration effect.

[0035] After the fiber clumps in the white water are fully broken up, the valve on the feed pipe 2 is opened, and the fiber-containing mixture flows into the lower treatment tank 3 through the feed pipe 2. After entering the treatment tank 3, the mixture flows through multiple sets of filter boxes 6 in sequence. The filter boxes 6 form a damped sliding connection with the slide rail 4 inside the treatment tank 3 through the slide strip 5 to ensure stability under the impact of water flow. The filter screens distributed from large to small on the bottom wall of the filter box 6 perform graded filtration of the mixture: first, the upper filter screen intercepts larger fibers and impurities, and then the lower filter screen gradually separates medium and fine fibers, so that the fibers are effectively intercepted. The purified wastewater then permeates to the bottom of the treatment tank 3.

[0036] The purified wastewater at the bottom of the treatment tank 3 can be treated in two ways: open the drain valve on the drain pipe 7 to directly discharge the qualified wastewater for recycling; or start the water pump 19 on the circulation pipe 18 to draw the purified wastewater to the output end of the water pump 19 through the circulation pipe 18, and then send the water back to the inside of the tower body 1 through the output end of the upper side wall of the tower body 1 to re-participate in the dispersing and filtration process, so as to realize the recycling of water resources.

[0037] When the amount of fiber trapped in the filter box 6 reaches a certain level, the operator can hold the U-shaped handle 21 on the side wall of the filter box 6 (the handle 21 is welded and fixed to the filter box 6, and the connection is firm) and pull the filter box 6 out smoothly along the slide rail 4 to clean the trapped fiber (which can be reused for pulping after recycling), and clean the filter screen. After completion, the filter box 6 is pushed back into the slide rail 4 through the handle 21 to adapt and reset it with the processing box 3, so that it can continue to participate in the filtration operation.

[0038] Finally, the first motor 13 is started, driving the screw 10 to rotate. Since one end of the translation block 12 is threadedly connected to the screw 10 and the other end is slidably connected to the parallel sliding rods 11, when the screw 10 rotates, it drives the translation block 12 to move smoothly along the sliding rods 11. The cleaning bristles at the lower end of the translation block 12 are in close contact with the bottom wall of the treatment tank 3, sweeping the filter residue and sediment to the drain pipe 7, avoiding the accumulation of impurities that affect the effective volume and water quality of the treatment tank 3. After cleaning is completed, the first motor 13 reverses, driving the translation block 12 back to the initial position, waiting for the next cleaning operation.

[0039] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents. In all the solutions mentioned above, the operation of electrical components is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A composite pulping white water tower, comprising a tower body (1), characterized in that: The lower end of the tower body (1) is provided with a feed pipe (2) with a valve. The lower end of the feed pipe (2) is provided with a processing box (3). The processing box (3) is provided with multiple sets of symmetrical slide rails (4). The slide rails (4) are provided with slide bars (5) that are damped and slidably connected to them. A filter box (6) is provided between each of the two slide bars (5). The filter box (6) is adapted to the processing box (3). The bottom wall of the filter box (6) is provided with filter screens distributed from large to small. The bottom wall of the processing box (3) is provided with a drain pipe (7) with a drain valve. The tower body (1) is provided with a dispersing component. The bottom wall of the processing box (3) is provided with a cleaning component.

2. The composite pulping white water tower according to claim 1, characterized in that: The dispersing assembly includes a rotating rod (8) and a crushing blade (9). The rotating rod (8) is symmetrically arranged inside the tower body (1). The crushing blade (9) is distributed in multiple groups on the side wall of the rotating rod (8). The upper side wall of the tower body (1) is provided with a driving assembly for driving the dispersing assembly.

3. The composite pulping white water tower according to claim 1, characterized in that: The cleaning assembly includes a screw (10), a slide bar (11), a translation block (12), and a first motor (13). The screw (10) and the slide bar (11) are distributed parallel to each other at both ends of the bottom wall of the processing box (3). One end of the translation block (12) is threadedly connected to the screw (10), and the other end is slidably connected to the slide bar (11). The first motor (13) is located on one side wall of the processing box (3). One end of the screw (10) is connected to the output end of the first motor (13). The lower end of the translation block (12) is provided with cleaning bristles, which are in contact with the bottom wall of the processing box (3).

4. A composite pulping white water tower according to claim 2, characterized in that: The drive assembly includes a drive box (14), gears (15), a connecting belt (16), and a second motor (17). The drive box (14) is located on the upper side wall of the tower body (1). The gears (15) are all located on the upper side wall of the rotating rod (8). The connecting belt (16) connects two of the gears (15) and meshes with them. The second motor (17) is located at one end of the drive box (14). One of the rotating rods (8) is connected to the output end of the second motor (17).

5. A composite pulping white water tower according to claim 1, characterized in that: The bottom wall of the processing tank (3) is provided with a circulation pipe (18), and a water pump (19) is provided at the upper end of the circulation pipe (18). The output end of the water pump (19) passes through the upper side wall of the tower body (1).

6. A composite pulping white water tower according to claim 2, characterized in that: A connecting pipe (20) is provided at one end of the upper side wall of the tower body (1).

7. A composite pulping white water tower according to claim 1, characterized in that: The filter box (6) is provided with a handle (21) on its front side wall. The handle (21) is a U-shaped structure and is welded and fixed to the filter box (6).

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