On the basis of domestic production equipment, we independently designs automated production lines and reduce employees in the production line, thereby minimizing the impact of human factors on product quality and make it stable.
Meanwhile, the company has increased the improvement research on equipment, optimized producing process in many aspects, and ensured that the product performance and quality are always in a leading position in the industry.
The Introduction SCR Catalyst Production Process
Mixing all kinds of raw materials into the mixer in proportion. The active ingredient is
thoroughly mixed with each other and kneaded into a plastic material that is easy to extrude.
Automated Batching System
This process is mainly to filter the larger impurities in the raw materials. And the extruded clay is in the shape of a rectangular parallelepiped, which discharging during extrusion.
Powerful Vacuum-Extruder
Extruded Clay
The extruded clay be placed in a high-humidity (80% relative humidity) environment for 12 hours to be aged, and the capillary portion was used to make the moisture fraction in the mixture more uniform and the plasticity improved.
Aging After Pre-Extrusion
According to different design requirements, the honeycomb catalyst body of different wall thickness, different aperture’s diameter and number is extruded by using the corresponding matching mold. After the extrusion ans cutting, the catalyst will be packed by cardboard with sponge, wooden plate in two sides and steel plate at bottom, then will be transferred into first slow drying room by automatic conveyor system.
Powerful Vacuum-Extruder
Automatic Position Cutting Machine
Packing and Automatic Conveyor System → Drying Section
01.First Slow Drying
It will last 10-11 days. The initial temperature of the drying room is 20 ℃ and the humidity is 100%. The room temperature will rise slowly and the humidity will decrease slowly. Drying too fast may cause product cracking. After drying, the catalyst will be transferred out by automatic conveyor system and un-packaged, then transferred into second quick drying room.
Automatic Conveyor System
First Drying Room
Automatic Conveyor System
02. Second Quick Drying
It will last 48 hours. There are fans inside the drying room, which are blown back and make negative pressure to dry the catalyst fast. After second drying, the catalyst will be put in the elevator to transfer to second floor for the next procedure.
Un-packing
Second Drying Room（inlet）
Second Drying Room（outlet）
Elevator(from first floor) Elevator(from second floor)
Guide Rail to Calcination Section
It will be last 30 hours. The highest temperature in the kiln is 600 ℃. The temperature in the kiln is slowly raised to 600 °C, and it is kept for a while, and then slowly cooled down to room temperature. The catalyst is putted on and lifted down the melt-belt by the FANUC mechanical arm.
FANUC Mechanical Arm (Automatic Feeding)
Melt-belt Kiln (in)
Melt-belt Kiln (out)
FANUC Mechanical Arm (Automatic Blanking)
Cutting 1-2cm which are reserved in extrusion from both ends to make the product meet the specified size requirements and to make the interface at both ends more smooth.
Cutting
Dust Collection (from holes)
After the dust collection, the catalyst will be transferred to the Assembly Section by elevator.
Elevator
Combining and packaging catalyst monomer into catalyst module.
Module Assembly
Combining and packaging catalyst monomer into catalyst module.
