Fishmeal dryer equipment has been widely used in feed drying

Fishmeal dryer equipment has been widely used in feed drying. With the development of the feed industry, many new feed drying equipments have been produced. This paper provides some new feed drying equipment and methods of use. Better drying efficiency of feed is achieved by the drying technology of zui's new drying equipment.

1. Purpose and method of fishmeal dryer The purpose of feed drying is to remove excess water from the feed ingredients for packaging, transportation, storage, processing and use. There are many classification methods for dryers, which are classified according to the structure of the dryer. Common dryers include spray dryers, fluidized bed dryers, airflow dryers, and drum dryers.

2. Fishmeal dryer

(1) The fishmeal dryer is mainly composed of a feeder, a drying chamber, a cyclone separator and a bag collector. The material to be dried enters the drying chamber from the feeder, the hot air enters the drying chamber along the tangential direction, and flows upward from the bottom of the drying chamber at a high speed rotation state, and is in full contact with the material, so that the material is in a stable equilibrium fluidized state, and the agitator in the drying chamber Under the combined action of the impact and high-speed rotating airflow, the material block is dispersed into irregular granular shape, and the larger undried material moves toward the chamber wall, and the lower part of the drying chamber is repeated due to its large sedimentation speed. process. As the material is dispersed and the materials collide with each other, the dried particles on the surface of the block will be moved to the rotation axis of the drying chamber gas, and discharged together with the air flow to the material collector, thereby obtaining a uniform drying with uniform particle size and dryness. product. The outstanding advantages of this dryer are high drying efficiency, low energy consumption, uniform product drying, compact structure, and fusion of pulverization and drying. Suitable for dry viscous, paste, powder, Filter cake materials. In the feed industry, it can be used to dry blood meal, meat and bone meal, fish meal, protein paste, dregs, etc.

(2) Fishmeal dryer This machine consists of inner and outer cylinders, annular orifice plates, vibration sources and so on. The two vibration motors are arranged in a cross arrangement. When the motor rotates, the excitation force in the vertical direction and the excitation force moment around the vertical axis are generated, so that the drying body is subjected to linear vibration in the vertical direction and torsional vibration around the vertical center line. The combination of the two vibrations causes the material to continuously jump from top to bottom along the horizontal annular orifice. The drying medium is blown into the drying cylinder by the air blower through the air inlet, and passes through the layers of the holes from bottom to top and passes through the material layer. As the material is continuously thrown and turned over, the material can be prevented from sticking to the surface of the spiral groove, and the contact area between the material and the drying medium is greatly increased, thereby enhancing the heat transfer and mass transfer process of the material and the drying medium. The advantage of the spiral vibration dryer is energy saving, wide application range, good dry product quality and high production efficiency. It is suitable for drying all kinds of granular, powdery, blocky and flake materials. In the feed industry, the dryer can be used to dry fish and shrimp bait, various additives, vinasse, starch residue, vegetable protein and the like.

(3) The rotary vane dryer belongs to a downstream dryer. The material is put into the rotary drum through the feeding device, and the lifting plate installed in the cylinder drops the material to the top, and when the material falls, the blade which is rotated at high speed in the cylinder is broken, so that it reciprocates and moves to the outlet, at the same time, The hot air generated by the combustion furnace enters the cylinder and is in full contact with the material, so that the material is quickly dried and then discharged through the conveyor at the discharge end. Since the dryer has built-in broken blades, the materials entering the dryer can be immediately dissipated, especially the materials with certain viscosity are broken into small pieces by large clumps, bringing out a part of the water to make it full with hot air. Contact and speed up drying. The dryer is characterized by a large heat transfer coefficient, high thermal efficiency, small oxidative degradation of the product, and large processing capacity. It is suitable for drying all kinds of granular, small block and sheet high humidity materials. In the feed industry, the machine can be used to dry chicken, pig manure, pasture, dregs, and the like.