Multi-layer mesh belt type drying device

Abstract

The invention relates to a drying device of Chinese herbal pieces, in particular to a multi-layer mesh belt type drying device which is simple in structure, uniform in heating, fast in drying speed, high in production efficiency and high in heat utilization rate. The multi-layer mesh belt type drying device comprises a drying box (3), a material feeding inlet (6), material discharging outlets (7), a first conveyor belt (5), a second conveyor belt (10), a third conveyor belt (11), a fourth conveyor belt (12), a fifth conveyor belt (13) and humidity outlets (4), wherein the material feeding inlet (6) is arranged at one side of the drying box (3), the material discharging outlets (7) are arranged at the lower part of the drying box (3), the first conveyor belt (5), the second conveyor belt (10), the third conveyor belt (11), the fourth conveyor belt (12) and the fifth conveyor belt (13) are arranged in the drying box (3), and the humidity outlets (4) are connected to the upper part of the drying box (3); the inner wall of the drying box (3) is provided with a far-infrared heating device (8), the material feeding inlet (6) is connected with a protection cover (9), and the inner part of the protection cover (9) is provided with a conveying device (2); the lower side of the protection cover (9) and the outer side of the drying box (3) are connected with an electric control cabinet (1). The multi-layer mesh belt type drying device disclosed by the invention has the beneficial effects that the structure is simple, the heating is uniform, the drying speed is fast, the production efficiency is high, and the heat utilization rate is high.

Description

technical field [0001] The invention relates to the technical field of drying equipment for decoction pieces of traditional Chinese medicine, in particular to a multi-layer mesh belt drying device. Background technique [0002] Belt dryer is a commonly used continuous drying equipment, which can be widely used in chemical industry, food, medicine, building materials, electronics and other industries, especially suitable for drying flake, strip and granular materials with good air permeability, multi-layer The belt dryer is often used in occasions where the drying speed requirement is low, the drying time is long, and the process operating conditions can be kept constant throughout the drying process. Partitions are set between the layers to organize the directional flow of the drying medium and make the material dry evenly. The multi-layer belt dryer occupies less land and has a simple structure, and is widely used for drying grain materials. However, due to multiple loadi...

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Problems solved by technology

[0003] Mesh belt dryer is a commonly used drying equipment for continuous production. It can be widely used in pharmaceutical, chemical, food, health care products, building materials, electronics and other industries, especially suitable for sheet, strip and granular materials with good air permeability. Drying. Paste materials such as filter cakes can also be dried after being formed by a granulator or an extruder. The traditional mesh belt dryer has a large volume and takes up a lot of space, and is generally a single-layer mesh belt. The material is dry, the efficiency of drying the material is low, and the output speed is low

[0004] The application number published by the State Intellectual Property Office is: 200720034390.X, which is called the patented technology of multi-layer belt dryer. The material inlet, dehumidification and heating fan, air inlet, and material outlet have short running of the material, uneven heating of the material, and poor drying effect; the utility model patent with the patent number 00219481.3 has a large heat loss and wastes resources, so we A multi-layer mesh belt drying device with uniform heating and good drying effect has been developed

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