摘要:
PURPOSE: An aluminum hydroxide aggregated particle, its preparation method, a vessel used for the method and a method for preparing an aluminum hydroxide powder are provided, to improve the transparency of a resin composition. CONSTITUTION: The aluminum hydroxide aggregated particle has an average diameter of 40 micrometers or more and an average diameter of 35 micrometers or less measured after pressing at a pressure of 1,000 kg/cm2, and the slurry obtained by mixing 20 mL of glycerin and aluminum hydroxide aggregated particle has an L value of 69 or less. The preparation method of the aluminum hydroxide aggregated particle comprises the steps of feeding a supersaturated aqueous sodium aluminate solution to a vessel; adding the aluminum hydroxide seed to the supersaturated aqueous sodium aluminate solution to form a seed-added solution; stirring the seed-added solution in the vessel while continuously feeding an additional supersaturated aqueous sodium aluminate solution into the vessel to hydrolyze the supersaturated aqueous sodium aluminate solution; separating the aluminum hydroxide aggregated particle from the aqueous sodium aluminate solution; and continuously discharging the aqueous sodium aluminate solution out of the vessel.
摘要:
평균 입자 직경이 40 ㎛ 이상이고, 1,000 kg/cm 2 가압후 측정된 평균 입자 직경이 35 ㎛ 이하이며, 글리세롤 20 ㎖ 와 수산화알루미늄 집합 입자 10 g 과의 혼합으로 수득되는 슬러리의 L 값이 69 이하인 수산화알루미늄 집합 입자가 하기 단계를 포함하는 방법으로 수득된다: (a) 알루미늄산나트륨 과포화 수용액을 용기에 공급하는 단계, (b) 수산화알루미늄 종자를 알루미늄산나트륨 과포화 수용액에 첨가하는 단계, (c) 용기내 종자 첨가된 용액을 교반시키면서 부가 알루미늄산나트륨 과포화 수용액을 용기에 계속 공급하여 알루미늄산나트륨 과포화 수용액을 가수분해시키는 단계, (d) 수산화알루미늄 집합 입자를 알루미늄산나트륨 수용액으로부터 분리시키는 단계, 및 (e) 알루미늄산나트륨 수용액을 용기 밖으로 계속 방출시키는 단계.
摘要翻译:平均粒径不小于40μm的氢氧化铝凝集颗粒,在1,000kg / cm 2压力下测定的平均粒径, 不大于35μm,通过混合20ml甘油和10g不大于69的氢氧化铝凝集颗粒获得的浆液的L值通过包括以下步骤的方法获得:(a)进料 (b)将氢氧化铝种子加入到过饱和铝酸钠水溶液中,(c)搅拌容器中的种子添加溶液,同时连续地将另外的过饱和铝酸钠水溶液加入容器中 水解过饱和铝酸钠水溶液,(d)从铝酸钠水溶液中分离出氢氧化铝聚集颗粒,和(e)将铝酸钠水溶液连续排出容器。 <图像>
摘要:
본 발명은, 고무와 플라스틱으로 만들어진 라이닝(52)을 구비하고 이송 스크류(14)에 대하여 적어도 대체로 동축으로 배치된 혼합 챔버에 혼합되는 재료를 안내하는 모터 구동 이송 스크류(14)를 포함하는 모르타르 혼합 펌프(10)에 관한 것이다. 하나 또는 수 개의 액체 주입 노즐을 통하여 액체가 공급될 수 있다. 혼합 챔버(18)로 이송되는 재료를 액체와 혼합하기 위하여, 이송 스크류(14)와 함께 회전하는 혼합 요소(36)가 혼합 챔버(18) 내에 수용된다. 이송 스크류(14)로부터 떨어져 배치되어 있는 혼합 챔버의 단부는 펌프(22)와의 연결을 위한 특수한 펌프 플랜지(20)에 의하여 경계가 설정된다. 전체 동작 방식을 개선하기 위하여, 특히 재료의 각각의 침전을 줄이고 세정을 단순화하기 위하여, 이송 스크류(14)는 혼합되어야 할 재료를 충진하는 데에 사용되는 퍼넬(12) 내에 배치된다. 혼합 챔버(18)는 퍼넬(12) 및 펌프 플랜지(20)와 별도로 되어 있고 퍼넬(12)에 연결되어 있는 부품으로 구성된다. 혼합 챔버(18)의 라이닝(52)은 퍼넬(12) 및 펌프 플랜지(20)의 표면과 직접 접촉하고, 다수의 액체 분사 노즐(6)이 노즐 캐리어(60) 내에 수용되는데, 상기 노즐 캐리어는 라이닝(52)의 내면과 적어도 대략 동일 평면 상에 있도록 라이닝(52)의 리세스 내에 배치되고 접근 가능한 고정 수단에 의하여 혼합 챔버(18)의 외부에 분리 가능하게 고정될 수 있다. 모르타르 혼합 펌프, 혼합 챔버, 이송 스크류, 퍼넬, 라이닝, 액체 분사 노즐.
摘要:
Mixing machine of the type comprising a container (10), inside which aggregates and binding fluids are introduced in order to form stone mixes, and at least one motor-driven mixing unit (30; 130A, 130B), the axis (Y; Yl, Y2) of which is parallel to and at a distance from the central axis (X) of the container (10). In order to introduce the binding fluids into the container (10), the machine comprises a dispensing unit (50; 150) which rotates in synchronism with the mixing unit (30; 130A, 130B), remaining always angularly at a distance therefrom.
摘要:
Method for producing articles which are not flat from a mix consisting of granulated inorganic materials and a hardening resin. After being compacted by means of vacuum vibrocompression on a flat forming support, the mix is transferred onto a form (300), the surface (350) of which has the same curvature as the article (100) to be obtained, and is left there until hardening of the mix is achieved. The articles made using this method and able to be used in various industrial and civil applications are also claimed.
摘要:
The invention relates to a mortar mixing pump (10) comprising a motor driven conveying screw (14) which guides material which is to be mixed into a mixing chamber (18) which is provided with a lining (52) made of rubber and plastic, said material being arranged at least in an essentially coaxial manner in relation to the conveying screw (14). The liquid can be fed through one or several liquid injection nozzles. A mixing element (36), which rotates with the conveying screw (14), is received in the mixing chamber (18) in order to mix the material conveyed into the mixing chamber (18) with liquid. The end of the mixing chamber which is arranged at a distance from the conveying screw (14) is defined by a specific pump flange (20) for connection to the pump (22). In order to improve the entire operating manner, especially to reduce each deposition of material, and to simplify purification, the conveying screw (14) is arranged in a funnel (12) which is used to fill the material which is to be mixed. The mixing chamber (18) is configured as a component which is separate from the funnel (12) and the pump flange (20) and which is connected to the funnel (12). The lining (52) of the mixing chamber (18) is in direct contact with the funnel (12) and with the surface of the pump flange (20), and a plurality of liquid injection nozzles (6) are received in a nozzle carrier (60) which is arranged in a recess of the lining (52) in an at least approximately flush manner with the inner surface of the lining (52) and which can be detachably fixed to the outside of the mixing chamber (18) by means of accessible fixing means.