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The catalyst screw, often referred to as a chemical extruder screw, is a key component used in chemical equipment for catalyst molding. It is primarily used in equipment such as extruders and pelletizers. Its design and operating principle directly impact the catalyst molding effect and production efficiency. The following is a summary of relevant information about chemical extruder screws:

I. Equipment Types and Functions

1.Single-Screw Extruder

• It utilizes a three-stage chemical extruder screw design (conveying, compacting, and extrusion sections). The variable-pitch helical structure generates high pressure, enabling continuous extrusion of powder materials.
• Experimental equipment (such as the CN-JTJ02) supports small-batch production (1-5 kg/h) and features an adjustable orifice diameter (1.5-4 mm), making it suitable for laboratory research.

2.Twin-Screw Extruder

• The twin-screw structure enhances mixing with its unique chemical extruder screw system and is suitable for materials with high moisture contents (35%-40%). Capacities can reach 500-3000 kg/h.
• Industrial-grade equipment (such as the SET series) is equipped with a cooling water jacket and variable frequency control to ensure continuous and stable operation.

II. Technical Parameters and Configuration

• Screw Material: Typically made of SUS304 stainless steel, corrosion-resistant and hygienic.
• Power Range: 180W-380V for experimental models34, 11kW-18.5kW for industrial models57.
• Forming Capacity: Particle size 2-10mm, supports custom templates for porous and clover-shaped shapes36.

III. Application Scenarios

• Chemical Industry: Used for forming strips or granules of catalysts such as activated carbon and molecular sieves.
• Laboratory Research: The micro-device can process small amounts of material (a few grams), facilitating catalyst formulation testing.