Double-roller pulp washer with spray cleaning mechanism

Abstract

The utility model discloses a double roll pulp washer with spray cleaning mechanism relates to papermaking pulping equipment technical field, including spray cleaning mechanism, and dry roller opposite rotation is installed on the spray cleaning mechanism, and the bottom fixed connection of spray cleaning mechanism has the liquid storage tank, through the synchronous operation of reciprocating screw rod and convex guide block that the rotation of transfer rod in pretreatment spare drive, one aspect makes slider to drive movable plate and scraper to carry out reciprocating scratch to prefiltering plate, and timely remove surface impurity, on the other hand, the prefiltering plate one side up and down movement of convex guide block through guide rod drive, cooperate spring and make the movement more smooth, can shake out the liquid storage tank outside with scratch residual, the synergistic effect of both, effectively prevent the impurity accumulation and block prefiltering plate, guarantee clean fluid smooth circulation, improve prefiltering effect, reduce the burden for subsequent final filtration, and then improve overall filtration efficiency, ensure that the cleaning quality of spray cleaning mechanism to slurry.

Description

Technical Field

[0001] This utility model relates to the field of papermaking and pulping equipment technology, and in particular to a double-roller pulp washing machine with a spray cleaning mechanism. Background Technology

[0002] In industrial production fields such as papermaking and pulping, the two-roll washer is a key piece of equipment, undertaking the important task of efficiently cleaning pulp and improving pulp quality. Among them, the spray cleaning mechanism is the core part of the two-roll washer. It uses high-pressure spray to powerfully wash away impurities and black liquor adhering to the pulp surface with cleaning liquid to achieve deep cleaning. In order to realize the recycling of cleaning liquid and reduce production costs and resource consumption, it is necessary to equip it with a complete circulation system. This allows the used cleaning liquid to be treated and reused in the spray cleaning operation, ensuring the continuous and stable operation of the two-roll washer and meeting the needs of large-scale industrial production.

[0003] In existing spray cleaning mechanisms, the circulating system experiences continuous slurry accumulation and increased cleaning liquid volume during operation. The resulting mixture increases viscosity, causing the slurry to gradually adhere to the surface of the filter. As working time extends, slurry and impurities accumulate on the filter, forming a stubborn blockage layer. This significantly reduces filtration efficiency, obstructs cleaning liquid flow, and leads to abnormal pressure and reduced flow in the circulating system. Over time, this severely impacts the cleaning effect of the spray cleaning mechanism on the slurry, reducing slurry quality. Therefore, a double-roller slurry washer with a spray cleaning mechanism is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where, during continuous operation of the spray cleaning mechanism's circulation system, the slurry accumulates and the cleaning liquid volume increases, leading to increased viscosity after mixing and easy adhesion to the surface of the filter device. As working time extends, the slurry and impurities continuously accumulate on the filter device, forming a stubborn blockage layer. This not only significantly reduces filtration efficiency and obstructs the flow of cleaning liquid but also causes abnormal pressure and reduced flow rate in the circulation system. Over time, this severely affects the cleaning effect of the spray cleaning mechanism on the slurry and reduces the quality of the slurry. Therefore, this invention proposes a double-roller slurry washer with a spray cleaning mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A double-roll washing machine with a spray cleaning mechanism includes a spray cleaning mechanism;

[0007] The drying roller is rotatably mounted on the spray cleaning mechanism. A liquid storage tank is fixedly connected to the bottom of the spray cleaning mechanism. A transmission mechanism is provided on the same side as the spray cleaning mechanism and the drying roller. A rotating rod is connected to the liquid storage tank by the transmission mechanism.

[0008] A pretreatment component is installed on a liquid storage tank. The pretreatment component includes a pre-filter plate that is movably connected to the inside of the liquid storage tank via a shaft, a convex guide block that is fixedly connected to a rotating rod, a guide rod that is rotatably connected to the convex guide block, and a connecting block 1 that is movably connected to the end of the guide rod. The connecting block 1 is fixedly connected to the pre-filter plate.

[0009] The pretreatment component also includes a reciprocating lead screw fixedly connected to the rotating rod, a slider slidably connected to the reciprocating lead screw, a connecting rod fixedly connected to the bottom of the slider, a connecting block two movably connected to the end of the connecting rod, a movable plate fixedly connected to the bottom of the connecting block two, and a scraper fixedly connected to the side of the movable plate away from the connecting rod.

[0010] Using the above scheme, external power drives two drying rollers to rotate. The lower drying roller, rotating via a transmission mechanism, drives a rotating rod on the storage tank to follow suit. The rotation of the rod drives a scraper on a movable plate to reciprocate and scrape the surface of the pre-filter plate. As the scraping occurs, one side of the pre-filter plate moves up and down with the rotation of the rod, shaking off any filter residue from the storage tank. This prevents filter residue from remaining on the surface of the pre-filter plate and improves the filtration efficiency of the final filter plate.

[0011] In one preferred embodiment, the transmission mechanism includes a first synchronous pulley fixedly connected to one end of the drying roller, a second synchronous pulley fixedly connected to one end of the rotating rod, and a synchronous belt drivingly connected to the first synchronous pulley and the second synchronous pulley.

[0012] By adopting the above scheme, the pre-treated parts are connected to the drying roller and the rotating rod through a transmission mechanism, so that the pre-treated parts move with the start of the drying roller, thereby improving the synchronization of the work.

[0013] In one preferred embodiment, a fixed rod is fixedly connected to the inside of the liquid storage tank, and a limit rod is fixedly connected to the end of the fixed rod. The slider and the limit rod are slidably connected.

[0014] Using the above scheme, the fixed rod supports and fixes the limiting rod, and the limiting rod, together with the reciprocating screw, makes the slider reciprocate as the reciprocating screw rotates.

[0015] In a preferred embodiment, a connecting plate is fixedly connected to the connecting rod, and a spring is fixedly connected to the bottom of the connecting plate, with the end of the spring away from the connecting plate fixedly connected to the surface of the movable plate.

[0016] Using the above scheme, the spring continuously applies force to the movable plate, causing the movable plate to move up and down following the pre-filter plate.

[0017] In a preferred embodiment, the bottom of the movable plate is connected to a ball bearing in a rolling manner, the ball bearing being in contact with the surface of the pre-filter plate, and the scraper being in contact with the surface of the pre-filter plate.

[0018] Using the above scheme, the ball bearings leave some space between the movable plate and the pre-filter plate, making it easier for the scraper to scrape the surface of the pre-filter plate.

[0019] In a preferred embodiment, a support plate is fixedly connected to the inside of the liquid storage tank, and a second spring is fixedly connected to the support plate. The second spring is fixedly connected to the bottom of the pre-filter plate.

[0020] Using the above solution, the pre-filter plate moves up and down more smoothly via spring two on one side.

[0021] In one preferred embodiment, the interior of the liquid storage tank is provided with inclined blocks, and a guide rail is installed inside the liquid storage tank. A filter frame is slidably connected to the guide rail, and a final filter plate is inserted and connected to the filter frame.

[0022] Using the above scheme, clean cleaning fluid flows into the storage tank through the pre-filter plate and is collected on one side of the tank by inclined blocks. The collected cleaning fluid then remains on the final filter plate for further filtration before being used in the circulation system of the spray cleaning mechanism. When the final filter plate needs to be replaced, simply pull the handle to drag it to the outside and insert it directly into the filter frame through the slot. Multiple sealing blocks at the end of the filter frame allow it to be inserted directly into the guide rail inside the storage tank for installation and use.

[0023] In this invention, the rotation of the rotating rod in the pretreatment component drives the reciprocating lead screw and the convex guide block to operate synchronously. On the one hand, the slider drives the movable plate and scraper to reciprocate and scrape the pre-filter plate, promptly removing surface impurities. On the other hand, the convex guide block pushes one side of the pre-filter plate up and down via the guide rod, and the spring makes the movement smoother, shaking off the scraped residue from the liquid storage tank. The two work together to effectively prevent impurities from accumulating and clogging the pre-filter plate, ensuring smooth flow of the cleaning liquid, improving the pre-filtration effect, reducing the burden on the subsequent final filtration, thereby improving the overall filtration efficiency and ensuring the cleaning quality of the slurry by the spray cleaning mechanism. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a double-roller washing machine with a spray cleaning mechanism proposed in this utility model;

[0025] Figure 2 This is a cross-sectional view of the liquid storage tank in this utility model;

[0026] Figure 3 This is a schematic diagram of the pretreatment component structure in this utility model;

[0027] Figure 4This is a schematic diagram of the pretreatment component structure in this utility model;

[0028] Figure 5 This is a schematic diagram of the final filter plate and filter frame structure in this utility model.

[0029] In the diagram: 1. Spray cleaning mechanism; 2. Drying roller; 3. Liquid storage tank; 4. Transmission mechanism; 5. Synchronous pulley one; 6. Synchronous pulley two; 7. Synchronous belt; 8. Rotating rod; 9. Reciprocating screw; 10. Fixed rod; 11. Limiting rod; 12. Sliding block; 13. Connecting rod; 14. Connecting plate; 15. Spring one; 16. Movable plate; 17. Scraper; 18. Ball bearing; 19. Pre-filter plate; 20. Convex guide block; 21. Guide rod; 22. Filter frame; 23. Final filter plate; 24. Spring two; 25. Pre-treatment component. Detailed Implementation

[0030] like Figures 1-5 As shown, the present invention proposes a double-roller washing machine with a spray cleaning mechanism, including a spray cleaning mechanism 1;

[0031] The drying roller 2 is rotatably mounted on the spray cleaning mechanism 1. The bottom of the spray cleaning mechanism 1 is fixedly connected to the liquid storage tank 3. The spray cleaning mechanism 1 and the drying roller 2 are provided with a transmission mechanism 4 on the same side. The liquid storage tank 3 has a rotating rod 8 that is driven to rotate by the transmission mechanism 4.

[0032] The pretreatment component 25 is set on the liquid storage tank 3. The pretreatment component 25 includes a pre-filter plate 19 that is movably connected to the inside of the liquid storage tank 3 via a shaft, a convex guide block 20 that is fixedly connected to the rotating rod 8, a guide rod 21 that is rotatably connected to the convex guide block 20, and a connecting block 1 that is movably connected to the end of the guide rod 21. The connecting block 1 is fixedly connected to the pre-filter plate 19.

[0033] The pretreatment component 25 also includes a reciprocating screw 9 fixedly connected to the rotating rod 8, a slider 12 slidably connected to the reciprocating screw 9, a connecting rod 13 fixedly connected to the bottom of the slider 12, a connecting block 2 movably connected to the end of the connecting rod 13, a movable plate 16 fixedly connected to the bottom of the connecting block 2, and a scraper 17 fixedly connected to the side of the movable plate 16 away from the connecting rod 13. External power drives the two drying rollers 2 to rotate. At this time, the drying roller 2 rotating below drives the rotating rod 8 on the liquid storage tank 3 to rotate along with it through the transmission mechanism 4. The rotation of the rotating rod 8 drives the scraper 17 on the movable plate 16 to reciprocate to scrape the surface of the pre-filter plate 19. As the scraping occurs, one side of the pre-filter plate 19 moves up and down with the rotation of the rotating rod 8, shaking the scraped filter residue out of the liquid storage tank 3, preventing the filter residue from remaining on the surface of the pre-filter plate 19, and improving the filtration effect of the final filter plate 23.

[0034] The transmission mechanism 4 includes a first synchronous pulley 5 fixedly connected to one end of the drying roller 2, a second synchronous pulley 6 fixedly connected to one end of the rotating rod 8, and a synchronous belt 7 drivingly connected to the first synchronous pulley 5 and the second synchronous pulley 6. The transmission mechanism 4 is connected to the drying roller 2 and the rotating rod 8, so that the pre-treated component 25 moves with the start of the drying roller 2, thereby improving the synchronization of the operation.

[0035] A fixed rod 10 is fixedly connected inside the liquid storage tank 3. A limit rod 11 is fixedly connected to the end of the fixed rod 10. The slider 12 is slidably connected to the limit rod 11. The fixed rod 10 supports and fixes the limit rod 11. The limit rod 11 cooperates with the reciprocating screw 9 to make the slider 12 reciprocate with the rotation of the reciprocating screw 9.

[0036] A connecting plate 14 is fixedly connected to the connecting rod 13. A spring 15 is fixedly connected to the bottom of the connecting plate 14. The end of the spring 15 away from the connecting plate 14 is fixedly connected to the surface of the movable plate 16. The spring 15 continuously exerts force on the movable plate 16, causing the movable plate 16 to move up and down with the pre-filter plate 19.

[0037] The bottom of the movable plate 16 is connected to a ball bearing 18 that is in relative rolling contact with the surface of the pre-filter plate 19. The ball bearing 18 is in contact with the surface of the pre-filter plate 19. The function of the ball bearing 18 is to leave some space between the movable plate 16 and the pre-filter plate 19 so that the scraper 17 can easily scrape the surface of the pre-filter plate 19.

[0038] A support plate is fixedly connected inside the liquid storage tank 3. A spring 24 is fixedly connected to the support plate. The spring 24 is fixedly connected to the bottom of the pre-filter plate 19. The spring 24 makes the up-and-down movement of the pre-filter plate 19 smoother on one side.

[0039] The interior of the liquid storage tank 3 is equipped with inclined blocks and a guide rail. A filter frame 22 is slidably connected to the guide rail, and a final filter plate 23 is inserted into the filter frame 22. Clean cleaning liquid flows into the interior of the liquid storage tank 3 through the pre-filter plate 19 and is collected on one side of the interior of the liquid storage tank 3 by the inclined blocks. The collected cleaning liquid stays on one side of the final filter plate 23 and is filtered again. It is then used through the circulation system of the spray cleaning mechanism 1. When the final filter plate 23 needs to be replaced, simply pull the handle to drag the final filter plate 23 to the outside and insert it directly into the filter frame 22 through the slot. Multiple sealing blocks at the end of the filter frame 22 allow the filter frame 22 to be directly inserted into the guide rail inside the liquid storage tank 3 for installation and use.

[0040] In this embodiment, existing twin-roll washing machines are equipped with a spray cleaning mechanism 1. Its function is to efficiently remove residual black liquor and impurities from the pulp through a combination of high-pressure water jet rinsing and chemical cleaning. Simultaneously, it maintains the stability of the drying rollers 2 during equipment operation and improves pulp quality. The spray cleaning mechanism 1 also includes a circulation system to improve the recycling of the cleaning solution and save costs. When the spray cleaning mechanism 1 is working, the sprayed cleaning solution cleans the pulp. The cleaning solution flows into the storage tank 3 under its own gravity and undergoes preliminary filtration through the pre-filter plate 19. At this time, the two drying rollers 2 are driven by external power and are located at the lower... The rotation of the square drying roller 2 drives the synchronous belt 7 through the synchronous pulley 5, which in turn drives the rotating rod 8 on the liquid storage tank 3 through the synchronous pulley 6. The rotation of the rotating rod 8 drives the reciprocating screw 9 to rotate as well. The reciprocating screw 9 drives the slider 12 to reciprocate, and the slider 12 slides on the limiting rod 11. During the movement of the slider 12, the movable plate 16 is dragged to move along through the connecting rod 13. When the movable plate 16 moves, it drags the ball bearing 18 to roll on the surface of the pre-filter plate 19. The scraper 17 on the movable plate 16 scrapes the surface of the pre-filter plate 19 to remove impurities that adhered to the surface of the pre-filter plate 19 when the cleaning liquid was used to clean the slurry.

[0041] Simultaneously, the rotating rod 8 drives the corresponding convex guide block 20 to rotate as well. The convex guide block 20 pushes one side of the pre-filter plate 19 through the guide rod 21, causing it to move up and down as it rotates. The other side of the pre-filter plate 19 is movably connected to the inside of the storage tank 3 via a shaft. The up and down movement of one side of the pre-filter plate 19 can shake the slurry and impurities scraped off by the scraper 17 on the movable plate 16 out of the storage tank 3. At this time, a replaceable collection box can be placed below the opening in the storage tank 3 to collect the shaken-out impurities and slurry. The connecting rod 13 and the movable plate 16 are connected by a connecting block. Next, the movable plate 16 can move along with the shaking of one side of the pre-filter plate 19, and the spring 15 continuously applies pressure to the movable plate 16 to ensure the stability of the movable plate 16 when the pre-filter plate 19 shakes. After the cleaning liquid is filtered by the pre-filter plate 19, it is affected by the inclined block in the liquid storage tank 3 and collects to one side inside the liquid storage tank 3. Then it is filtered again by the final filter plate 23 on the filter frame 22. Finally, it is connected to the circulation system on the spray cleaning mechanism 1 through the pipe on the side of the liquid storage tank 3 to realize the recycling of the filtered cleaning liquid. Pulling the handle on the filter frame 22 outward can pull out the final filter plate 23 for replacement.

Claims

1. A double-roller washing machine with a spray cleaning mechanism, characterized in that, Including a spray cleaning mechanism (1); The drying roller (2) is rotatably mounted on the spray cleaning mechanism (1). The bottom of the spray cleaning mechanism (1) is fixedly connected to the liquid storage tank (3). The spray cleaning mechanism (1) and the drying roller (2) are provided with a transmission mechanism (4) on the same side. The liquid storage tank (3) has a rotating rod (8) that is driven to rotate by the transmission mechanism (4). A pretreatment component (25) is set on a liquid storage tank (3). The pretreatment component (25) includes a pre-filter plate (19) that is movably connected to the inside of the liquid storage tank (3) via a shaft, a convex guide block (20) that is fixedly connected to the rotating rod (8), a guide rod (21) that is rotatably connected to the convex guide block (20), and a connecting block 1 that is movably connected to the end of the guide rod (21). The connecting block 1 is fixedly connected to the pre-filter plate (19). The pretreatment component (25) also includes a reciprocating screw (9) fixedly connected to the rotating rod (8), a slider (12) slidably connected to the reciprocating screw (9), a connecting rod (13) fixedly connected to the bottom of the slider (12), a connecting block two movably connected to the end of the connecting rod (13), a movable plate (16) fixedly connected to the bottom of the connecting block two, and a scraper (17) fixedly connected to the side of the movable plate (16) away from the connecting rod (13).

2. A double-roller washing machine with a spray cleaning mechanism according to claim 1, characterized in that, The transmission mechanism (4) includes a synchronous wheel (5) fixedly connected to one end of the drying roller (2), a synchronous wheel (6) fixedly connected to one end of the rotating rod (8), and a synchronous belt (7) drivingly connected to the synchronous wheel (5) and the synchronous wheel (6).

3. A double-roller washing machine with a spray cleaning mechanism according to claim 1, characterized in that, The liquid storage tank (3) is fixedly connected to a fixed rod (10) inside, and a limit rod (11) is fixedly connected to the end of the fixed rod (10). The slider (12) is slidably connected to the limit rod (11).

4. A double-roller washing machine with a spray cleaning mechanism according to claim 1, characterized in that, A connecting plate (14) is fixedly connected to the connecting rod (13), and a spring (15) is fixedly connected to the bottom of the connecting plate (14), and the end of the spring (15) away from the connecting plate (14) is fixedly connected to the surface of the movable plate (16).

5. A double-roller washing machine with a spray cleaning mechanism according to claim 1, characterized in that, The bottom of the movable plate (16) is connected to a ball bearing (18) that is in relative rolling contact with the surface of the pre-filter plate (19), and the scraper (17) is in contact with the surface of the pre-filter plate (19).

6. A double-roller washing machine with a spray cleaning mechanism according to claim 1, characterized in that, The storage tank (3) is fixedly connected to a support plate, and a second spring (24) is fixedly connected to the support plate. The second spring (24) is fixedly connected to the bottom of the pre-filter plate (19).

7. A double-roller washing machine with a spray cleaning mechanism according to claim 1, characterized in that, The liquid storage tank (3) is equipped with inclined blocks inside, and a guide rail is installed inside the liquid storage tank (3). A filter frame (22) is slidably connected on the guide rail, and a final filter plate (23) is inserted and connected on the filter frame (22).

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