Overview
The WH series double-helix conical mixer is a new type of high-efficiency mixing equipment that is modified on the basis of the single-helix cantilever conical mixer and has double-helix operation. This machine uses a set (or two sets) of motors and reducers to simultaneously control the rotation and revolution of the double screws. It uses the asymmetric mixing method of the two screws to achieve a large mixing range of materials and a fast mixing speed. This machine is suitable for mixing powder, granules, or adding liquid to powder. This machine has strong applicability and wide application range. Heat-sensitive materials will not overheat, granular materials will not be crushed by compression or grinding, and materials with large quality differences and mixing ratios will not stratify or segregate.
Working principle
The rotation and revolution of the two stirring screws will cause the material to produce compound motion in the cone, and at the same time form the following four modes of motion.
◆ The spiral revolves around the inner wall of the cone, causing the material to move in a circular motion along the cone wall;
◆ The rotation of the spiral causes the material to spiral upward from the bottom of the cone, lifting the material;
◆ Due to the compound motion of spiral rotation and revolution, part of the material is sucked into the spiral cylindrical surface. Due to the centrifugal force of the spiral rotation, part of the material in the spiral cylindrical surface is radially thrown toward the cone;
◆ The material being lifted will fall due to its own gravity.
Four modes of movement coexist, producing convection, shearing and diffusion effects on the materials, thereby achieving rapid and uniform mixing.
Equipment features
◆ The material is discharged thoroughly without any residue, meeting high standard discharge requirements.
◆ The stirring method is gentle and will not destroy the crystalline state of the material. It is suitable for mixing fragile materials.
◆ Low energy consumption, good mixing effect and wide applicability of materials.
◆ Flying knife and spray atomization device can be installed to meet special process requirements.
◆ Equipped with a spherical discharge valve, the discharge is more thorough and stable.
Technical parameters
Equipment selection
◆ Determine the volume of each batch of mixed materials, which can range from 0.1 to 20 cubic meters, and select equipment with corresponding specifications based on the volume of materials.
◆ Selection of equipment materials. According to the material characteristics, first select materials that meet the material requirements, and then select materials for parts that are not in contact with the materials based on process and environmental requirements. Commonly used materials include carbon steel, 304/316L/321 stainless steel, etc. Surface treatment requirements are determined based on material properties, working conditions, hygiene levels and other factors.
◆ Configure the driving power according to the characteristics of material density, fluidity and equipment startup mode. The startup mode is divided into heavy load startup and no load startup.
◆ According to process requirements, add corresponding auxiliary functions such as liquid spraying, heating or cooling.
◆ According to the actual operation and usage requirements, design the opening conditions of the equipment, such as feed port, cleaning port, exhaust port, etc.
◆ Select the unloading method, the driving methods include manual, pneumatic and electric.
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