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A method for preparing layered gradient distribution filter paper through a multi-stage storage pool device

A gradient distribution and storage pool technology, applied in papermaking, paper machines, textiles and papermaking, etc., can solve the problems of complex production process, unfavorable promotion and industrialization, high production cost, etc., and achieve simple production process, low flow resistance and long service life long effect

Active Publication Date: 2018-06-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be used in oxidizing atmosphere or in reducing atmosphere. It has strong acid and alkali corrosion resistance. It can be used in coal gasification chemical industry, IGCC, PFBC coal gasification power generation, high temperature flue gas, automobile exhaust, water purification and other high and low temperature Fluid filtration and purification, but the production process is complicated and the preparation cost is too high, which is not conducive to the promotion and industrialization of technology

Method used

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  • A method for preparing layered gradient distribution filter paper through a multi-stage storage pool device

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Embodiment 1

[0023] A multi-level storage pool device, including 2-level storage pools, is characterized in that each level of storage pools is connected to an independent storage pool with a capacity of 0.5m 3 The cylindrical beating tank is connected in parallel between the two storage tanks. The storage tank contains a conveyor belt with an angle of 5° to the horizontal direction. Combined together to form a multi-layer filter paper, the average fiber diameter of the glass fiber cotton and chopped strand raw materials added to the first-stage storage tank connected to the beating tank is 6-9 μm, and the glass fiber cotton and chopped strand raw materials added to the second-level storage tank connected to the beating tank The average fiber diameter of the chopped strand raw material is 2 to 5 μm.

[0024] A method for preparing layered gradient distribution filter paper through a multi-stage storage tank device, characterized in that it comprises the following steps:

[0025] (1) Dispe...

Embodiment 2

[0031] A multi-stage storage pool device, including 4-level storage pools, is characterized in that each of the storage pools is connected to an independent storage pool with a capacity of 2m 3 The cylindrical beating tanks are connected in parallel between the storage tanks at all levels. The storage tanks contain conveyor belts with an angle of 20° to the horizontal direction. The slurry conveyed by the conveyor belts of the storage tanks at all levels will pass through the hot press Combined together to form a multi-layer filter paper, the average fiber diameter of the glass fiber cotton and chopped strand raw materials added to the first-stage storage tank connected to the beating tank is 6-9 μm, and the glass fiber cotton and chopped strand raw materials added to the second-level storage tank connected to the beating tank The average fiber diameter of the chopped strand raw material is 2-5 μm, the average fiber diameter of the glass fiber cotton and the chopped strand raw ...

Embodiment 3

[0039] A multi-stage storage pool device, including 6-level storage pools, is characterized in that each of the storage pools is connected to an independent storage pool with a capacity of 4m 3 The cylindrical beating tanks are connected in parallel between the storage tanks at all levels. The storage tanks contain a conveyor belt with an angle of 30° to the horizontal direction. The slurry conveyed by the conveyor belts of the storage tanks at all levels will pass through the hot press layer Combined together to form a multi-layer filter paper, the average fiber diameter of the glass fiber cotton and chopped strand raw materials added to the first-stage storage tank connected to the beating tank is 6-9 μm, and the glass fiber cotton and chopped strand raw materials added to the second-level storage tank connected to the beating tank The average fiber diameter of the chopped strand raw material is 2-5 μm, the average fiber diameter of the glass fiber cotton and the chopped stra...

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Abstract

A multistage storage tank device comprises 2-6 stages of storage tanks, and is characterized in that each stage of the storage tank is connected with an independent round pulping tank whose capacity is 0.5-4 m<3>, the storage tanks are connected in parallel and include conveying wire belts, a mean fiber diameter of raw materials added to the first stage of pulping tank is 6-9 [mu]m, a mean fiber diameter of raw materials added to the second stage of pulping tank is 2-5 [mu]m, a mean fiber diameter of raw materials added to the third stage of pulping tank is 0.5-1.5 [mu]m, and the size of the mean fiber diameter of the raw materials added to a later stage of pulping tank is 1 / 3-3 / 4 of that of the previous stage. A method for preparing laminar-distribution filter paper through the multistage storage tank device is also disclosed, and is characterized by comprising the following steps of dispersed pulping by the pulping tanks, wet molding, paper picking molding, glue spraying, and drying. The beneficial effects are that technique is simple, the performance is excellent and the service life is long.

Description

technical field [0001] The invention relates to a filter material preparation device and a preparation method thereof, in particular to a method for preparing layered gradient distribution filter paper through a multi-stage storage tank device. Background technique [0002] Air filter paper is widely used. With the rapid development of social economy, the requirements for clean rooms such as medicine, biological sciences, integrated circuits, and sterile operating rooms are getting higher and higher. In order to improve the filtration efficiency, traditional air filter paper can only be passed through Increase the bulk density and thickness of the air filter paper, the increase of the bulk density and thickness will often increase the flow resistance of the air filter paper, and the increase of the flow resistance will reduce the service life of the air filter paper. , it is necessary to increase the weight of the air filter paper to be manufactured, but the traditional filt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/04D21F11/14
CPCD21F11/04D21F11/145
Inventor 陈照峰吴操李斌斌王蕾叶信立
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS