Continuous drying systems for silica gel production

Abstract

The invention relates to a continuous drying system for silica gel production. The continuous drying system comprises drying units and a hot air circulating system, wherein the drying units are multi-layer belt type drying machines, at least comprise a first drying unit, a second drying unit and a third drying unit and are connected through bucket elevators in series; a temperature sensor is arranged in a box body of each drying unit; an electric stop valve is arranged at a steam inlet of a steam pipeline of each drying unit; a dehumidifying fan variable-frequency controller, a heating fan variable-frequency controller and a conveying belt motor variable-frequency controller are arranged on a dehumidifying system, a heating system and a transmission system of each drying unit respectively; the temperature controllers, the electric stop valves, the dehumidifying fan variable-frequency controllers, the heating fan variable-frequency controllers and the conveying belt motor variable-frequency controllers are electrically connected with a PLC (programmable logic controller) control system respectively. The continuous drying system is compact in structure and can realize continuous production, the drying state and the drying effect are controllable, and a large quantity of energy can be saved.

Description

technical field [0001] The invention relates to a drying system, in particular to a continuous drying system for silica gel production. Background technique [0002] At present, the production of silica gel in China and even in the world follows the traditional tunnel kiln drying production process. The materials are stored by the storage device, manually loaded to the stainless steel tray, and then the tray is evenly placed on the drying cart, and the cart is manually pushed to the tunnel for drying. The drying kiln is used for drying. After drying in the tunnel drying kiln for a certain period of time, the drying car is manually pushed out, and the materials in the tray on the car are discharged to the screening equipment to complete the drying process of the material once. The traditional tunnel drying kiln is a brick-concrete structure, which requires a large initial investment, high labor intensity, backward production technology, consumes a lot of electric energy and h...

AI Technical Summary

Problems solved by technology

The traditional tunnel drying kiln is a brick-concrete structure, which requires a large initial investment, high labor intensity, backward production technology, consumes a lot of electric energy and heat energy, constant temperature drying, uneven drying degree, uncontrollable drying state and drying effect, and broken products. The rate is high and the pass rate is low, which cannot meet the needs of continuous production

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