Catalyst slurry coating device

• Main Authors: TAKAOKA NAOHIRO, SEKINE HIROSHI, NAGASHIMA HIROKI, ITO MINORU
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

A coating device (10) is provided with a supply frame (8) for supplying slurry from one end of a honeycomb substrate (1) to multiple flow holes (2), and a blower (7) for evacuating an airbox (12). A ring-shaped resistor (5) is installed on the opening (11b) of the airbox (12), and the honeycomb substrate (1) is disposed on the resistor (5) with a spacer (6) therebetween. When the blower (7) is operated and the slurry is supplied, the slurry coating thickness coated on the flow holes (2) in the peripheral region (2b) of the honeycomb substrate (1) is thinner than the slurry coating thickness coated on the flow holes (2) in the central region (2a). 涂布装置(10)具备从蜂窝基材(1)的端向多个流通孔(2)供给浆料的供给架(8)和对风箱(12)抽真空的鼓风机(7)。在风箱(12)的开口(11b)，安装有环状的阻挡体(5)，夹隔着隔离件(6)在阻挡体(5)的上方配置蜂窝基材(1)。如果使鼓风机(7)运转而供给浆料，与涂布于蜂窝基材(1)的位于中央区域(2a)的流通孔(2)的浆料的涂布幅度相比，涂布于位于外周区域(2b)的流通孔(2)的浆料的涂布幅度变短。