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Continuous kneading device

A kneading and liquid mixing technology, which is applied to mixers with rotating agitation devices, mixers, mixing methods, etc., can solve the problems of poor discharge performance and high slurry viscosity, and achieve reduced viscosity and good mixing performance , good discharge effect

Active Publication Date: 2013-12-11
FUNKEN POWTECHS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the continuous kneading / mixing device configured as above, stainless steel is used as a base material such as a rotating mixing disk, which is a member that contacts and mixes the kneaded product (slurry) of powder and liquid, but the slurry and stainless steel The wettability of the surface of the material is good, so the slurry adheres to the stainless steel material. Especially when the kneading object is fine particles below the ultrafine level, good kneading cannot be performed, and the viscosity of the slurry becomes high. As a result, slurry is generated. The discharge performance of the material from the device deteriorates, and the temperature of the slurry increases to cause a change in the characteristics of the product, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0064] First, prepare aluminum (JIS A2014) and stainless steel (JIS SUS304) as base materials, and prepare the base material itself without coating, the base material with TiN coating on the surface of the base material, and the Substrates coated with TiCN, substrates coated with DLC, substrates coated with PEEK, substrates coated with PTFE, and measured coefficient of kinetic friction.

[0065] In addition, the dynamic friction coefficient was measured under the condition that a load of 5 to 20 N was applied to a cemented carbide ball with a diameter of 6 mm at room temperature in a ball-on-disk friction test using a friction and wear tester manufactured by CSEM Corporation.

[0066] show the result in Image 6 . As can be seen from the figure, the dynamic friction coefficient of aluminum is 0.6, and that of stainless steel is 0.5. On the other hand, when these substrates are coated, the TiN coating is 0.4, the TiCN coating is 0.3, and the DLC coating is 0.4. Coefficient o...

Embodiment 2

[0070] Example 2 is an example of kneading the powder raw material, that is, quartz powder with an average particle diameter of 0.8 μm on a volume basis, and the liquid raw material, that is, ion-exchanged water, using an apparatus having the same apparatus structure as that of Example 1. Embodiment 3 is to use a PTFE coating (material) to cover the surfaces of the rotating kneading discs 10, 11, the surface of the scraping blade 31, the inner surface of the upper shell 1, and the inner surface of the lower shell 2 for mixing powder raw materials. That is, an example of quartz powder and liquid raw material, namely ion-exchanged water. Example 4 is to knead powder raw materials using a device that covers the surfaces of the rotating kneading discs 10 and 11, the surface of the scraping blade 31, the inner surface of the upper shell 1, and the inner surface of the lower shell 2 respectively with PEEK coating (material) That is, an example of quartz powder and liquid raw materia...

Embodiment 7

[0071] Embodiment 7 uses DLC coating (material) to cover the surfaces of the rotating mixing discs 10 and 11 and the surface of the scraping blade 31 respectively, and covers the inner surface of the upper shell 1 and the lower shell 2 with a PEEK coating (material). An example of kneading powder raw material, namely quartz powder, and liquid raw material, namely ion-exchanged water, on the inner surface of the device. Example 8 uses TiCN coating (material) to respectively cover the surfaces of the rotating mixing discs 10 and 11, the surface of the scraping blade 31, and respectively covers the inner surface of the upper shell 1 and the lower shell 2 with a PEEK coating (material). The device on the inner surface is an example of kneading quartz powder, which is a powder raw material, and ion-exchanged water, which is a liquid raw material. Example 9 covers the surfaces of the rotating mixing discs 10 and 11 and the scraping blade 31 with a TiN coating (material), and covers ...

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Abstract

This continuous kneading device is provided with an upper trunk (1) to which a powder supply tube (3) through which quantified powder is supplied is connected and in which the powder is blended with a fluid, and a lower trunk (2) concentrically connected to the bottom of the upper trunk (1). The continuous kneading device continuously kneads the powder and the fluid by a first rotating kneading plate (10) built into the upper trunk (1) and a second rotating kneading plate (11) built into the lower trunk (2), wherein the first and second rotating kneading plates (10, 11) have a substrate surface covered with a coating material (50) for reducing friction when the powder and the fluid are kneaded together.

Description

technical field [0001] The present invention relates to a continuous kneading device for continuously mixing powders such as quartz powder and liquid for kneading, and relates to a continuous kneading device capable of effectively and continuously mixing ultrafine particles and liquid substances. [0002] This application claims priority based on Japanese Patent Application No. 2011-064663 for which it applied in Japan on March 23, 2011, and uses the content here. Background technique [0003] Conventionally, a continuous kneading apparatus for continuously kneading a powder such as quartz powder and a liquid as disclosed in Patent Documents 1 and 2 is known. [0004] In the continuous kneading device of Patent Document 1, the kneading chambers respectively accommodating and arranging the rotating kneading disks are arranged in multiple upper and lower stages, and powder and liquid are simultaneously supplied to the upper kneading chambers for kneading. , the rotating mixin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F7/26B01F3/12B01F7/16B01F15/00B01F27/93B01F25/74
CPCB01F23/53B01F25/741B01F27/0531B01F27/2712B01F23/50B01F27/93B01F35/00
Inventor 岩子真由美中尾雅章北村龙司阿部正和植田稔晃小泉博道
Owner FUNKEN POWTECHS
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