Pasty papermaking filler treatment device

Abstract

A pasty papermaking filler treatment device relates to the technical field of papermaking, and adopts the technical scheme that the pasty papermaking filler treatment device comprises a crushing unit, a pulping unit and an impurity removal unit, and the crushing unit comprises a cutter wheel type crusher and a conveyor; the pulping unit comprises a pulper, and the pulper is sequentially connected with a first storage tank, a stirring unit and a second storage tank through pipelines; the stirring machine group comprises a plurality of stirring machines which are sequentially arranged, each stirring machine is provided with an overflow port, and the heights of the overflow ports of the plurality of stirring machines are sequentially reduced; the impurity removal unit comprises a drum screen, a sand washer, a water washing wheel, a first vibrating screen, a second vibrating screen, a sand remover and a third storage tank which are sequentially connected through pipelines; and a discharge pipe of the second storage tank is connected to the drum screen. According to the utility model, pasty filler is crushed and then fully stirred, and multiple times of impurity removal are completed in multiple ways, so that impurities in the filler can be effectively removed, the granularity, viscosity and concentration of the papermaking filler are ensured, the production efficiency is high, and the treatment effect is good.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, and in particular to a paste-like papermaking filler processing device. Background Technology

[0002] Paper and paperboard are made of fibers. To improve the quality indicators of paper and paperboard, such as opacity, printability, and uniformity, and to enhance the dewatering capacity and drying speed of pulp, reduce energy consumption and lower costs in the papermaking process, papermaking fillers are usually added to the pulp. With the development of papermaking technology from acidic papermaking towards neutral and alkaline methods, the development of high-proportion addition technology for papermaking fillers, and the need for integrated utilization technology in pulping and papermaking, various new fillers, such as washed mud, papermaking white mud, papermaking sludge, virgin kaolin, and wollastonite, are constantly being developed for addition to paper and paperboard.

[0003] Due to the need to reduce costs and transportation expenses, paper mills typically purchase paper filling materials locally, and various new types of filling materials are usually stored, transported, and used in paste form. However, paste filling materials contain a large number of impurities, and the traditional paper filling material processing technology, which uses dissolution tank dispersion and vibrating screen screening, is no longer sufficient to meet the processing requirements for preparing paper filling materials. Utility Model Content

[0004] To address the problem that traditional filler processing techniques in existing technologies cannot meet the impurity removal requirements for preparing papermaking fillers, this utility model provides a paste-like papermaking filler processing device.

[0005] This utility model provides the following technical solution: a paste-like paper filling material processing device, comprising:

[0006] The crushing unit includes a cutter wheel crusher and a conveyor disposed at the bottom discharge port of the cutter wheel crusher;

[0007] The pulping unit includes a pulper installed at the bottom of the discharge end of the conveyor. The pulper is connected in sequence to a first storage tank, a mixer unit, and a second storage tank via pipes. The mixer unit includes multiple mixers arranged in sequence. Each mixer is provided with an overflow port, and the height of the overflow ports of the multiple mixers decreases sequentially.

[0008] The impurity removal unit includes a cylindrical screen, a sand washing machine, a washing wheel, a first vibrating screen, a second vibrating screen, a sand remover, and a third storage tank, which are connected in sequence by pipes; the discharge pipe of the second storage tank is connected to the cylindrical screen.

[0009] Preferably, the first storage tank, the second storage tank, and the third storage tank are all equipped with a stirrer.

[0010] Preferably, the mixer is equipped with dual agitators.

[0011] Preferably, the first vibrating screen is a horizontal vibrating screen, the second vibrating screen is an inclined vibrating screen, and the mesh count of the cylindrical screen, the first vibrating screen, and the second vibrating screen is 40 to 80 mesh, with the mesh count of the three screens increasing sequentially.

[0012] Preferably, the cylindrical screen, the first vibrating screen, and the second vibrating screen are all provided with an under-screen pool, and the under-screen pool is provided with a conveying pump.

[0013] The beneficial effects of this invention are: after the paste-like filler is crushed and thoroughly stirred, and then impurities are removed multiple times through various methods, the impurities in the filler can be effectively removed, ensuring the particle size, viscosity and concentration of the papermaking filler, resulting in high production efficiency and good treatment effect in the preparation of papermaking filler. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of the processing device.

[0015] Reference numerals: 11. Blade wheel crusher; 12. Conveyor; 21. Pulverizer; 22. First storage tank; 23. Mixing unit; 231. First mixer; 232. Second mixer; 233. Third mixer; 24. Second storage tank; 31. Cylindrical screen; 32. Sand washer; 33. Washing wheel; 34. First vibrating screen; 35. Second vibrating screen; 36. Sand remover; 37. Third storage tank. Detailed Implementation

[0016] The embodiments of this utility model will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement them after reading this specification. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0017] This utility model provides, for example Figure 1 The apparatus shown is a paste-like paper filling material processing device, comprising a crushing unit, a pulping unit, and a purification unit arranged in sequence.

[0018] The crushing unit includes a blade crusher 11 and a conveyor 12 disposed at the bottom discharge port of the blade crusher 11. The blade crusher 11 crushes the filler material from a large, sticky paste state into small pieces, which are then conveyed to the pulping unit by the conveyor 12; the conveyor 12 can be a metering belt conveyor.

[0019] The pulping unit includes a pulper 21 located at the bottom of the discharge end of the conveyor 12. The pulper 21 is connected in sequence to a first storage tank 22, a mixer unit 23, and a second storage tank 24 via pipes. The pulper 21 mixes small pieces of filler with water to form a slurry, which is then conveyed to the first storage tank 22 for buffering. After that, it enters the mixer unit 23 for multiple stirring and mixing processes, and finally enters the second storage tank 24 for buffering.

[0020] The mixing unit 23 includes a first mixer 231, a second mixer 232, and a third mixer 233 arranged sequentially. Each of the three mixers has an overflow port, with the height of the overflow ports decreasing sequentially. The overflow port of the third mixer serves as the discharge port. All three mixers use dual agitators to enhance mixing capacity. In this embodiment, the overflow ports are located at the top of the mixers, and the heights of the three mixers decrease sequentially. The slurry first enters the first mixer 231. After mixing, its suspended solids are carried by the overflow into the second and third mixers sequentially. Multiple mixing processes ensure thorough mixing of the filler and water. The slurry then flows through the overflow port of the third mixer 233 into the second storage tank 24.

[0021] The impurity removal unit includes a cylindrical screen 31, a sand washer 32, a washing wheel 33, a first vibrating screen 34, a second vibrating screen 35, a sand remover 36, and a third storage tank 37, all connected sequentially by pipes. This unit performs multiple impurity removal processes on the mud slurry to ensure thorough removal of impurities from the filler material. Specifically, the sand washer 32 can be a single-spiral type, the washing wheel 33 can be a windmill type, the first vibrating screen 34 can be a horizontal type, the second vibrating screen 35 can be an inclined type, and the sand remover 36 can be a cyclone type. The screen mesh size of the cylindrical screen 31, the first vibrating screen 34, and the second vibrating screen 35 is all 40-80 mesh.

[0022] Specifically, the discharge pipe of the second storage tank 24 is connected to the cylindrical screen 31. The uniformly mixed mud is sent to the cylindrical screen 31 with a screen mesh of 40 mesh for initial impurity removal. Then it enters the sand washing machine 32 and the water washing wheel 33 for cleaning. Then it enters the first vibrating screen 34 with a screen mesh of 60 mesh for secondary impurity removal. Then it is sent to the second vibrating screen 35 with a screen mesh of 80 mesh for tertiary impurity removal. Then it enters the sand remover 36 for gravity sand removal. Finally, it enters the third storage tank 37 for buffering, waiting to be used.

[0023] Preferably, the first storage tank 22, the second storage tank 24, and the third storage tank 37 are all equipped with a stirrer.

[0024] The aforementioned equipment, connected by pipelines, allows materials to flow under pressure via a conveying pump or to flow by gravity using the elevation difference. The cylindrical screen, the first vibrating screen, and the second vibrating screen also require an under-screen pool, which is equipped with a conveying pump.

[0025] The above describes one or more embodiments of this utility model in a relatively specific and detailed manner, but it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A paste-like papermaking filler treatment device, characterized in that, include: The crushing unit includes a cutter wheel crusher and a conveyor disposed at the bottom discharge port of the cutter wheel crusher; The pulping unit includes a pulper located at the bottom of the discharge end of the conveyor. The pulper is connected in sequence to a first storage tank, a mixer unit, and a second storage tank via pipes. The mixer unit includes multiple mixers arranged in sequence. Each mixer is provided with an overflow port, and the height of the overflow ports of the multiple mixers decreases sequentially. The impurity removal unit includes a cylindrical screen, a sand washing machine, a washing wheel, a first vibrating screen, a second vibrating screen, a sand remover, and a third storage tank, which are connected in sequence by pipes; the discharge pipe of the second storage tank is connected to the cylindrical screen.

2. The paste-like papermaking filler treatment device according to claim 1, characterized in that, The first storage tank, the second storage tank, and the third storage tank are all equipped with a stirrer.

3. The paste-like paper filling material processing device according to claim 1, characterized in that, The mixer is equipped with two agitators.

4. The paste-like paper filling material processing device according to claim 1, characterized in that, The first vibrating screen is a horizontal vibrating screen, and the second vibrating screen is an inclined vibrating screen. The mesh size of the cylindrical screen, the first vibrating screen, and the second vibrating screen is 40 to 80 mesh, and the mesh size of the three screens increases sequentially.

5. The paste-like paper filling material processing device according to claim 1, characterized in that, The cylindrical screen, the first vibrating screen, and the second vibrating screen are all equipped with under-screening tanks, and the under-screening tanks are equipped with conveying pumps.

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