Electric-heating air-circulating-type drying box

Abstract

The invention provides an electric-heating air-circulating-type drying box which comprises a box body, a heating bar and an air circulating unit. The upper end of the box body is provided with an air outlet, the lower end of the box body is provided with an air inlet, the air outlet and the air inlet are provided with a first axial flow fan and a second axial flow fan respectively, sliding channels are arranged in the box body, swinging plates are arranged on the sliding channels, the air circulating unit comprises a first return pipeline, a second return pipeline, a third axial flow fan and a fourth axial flow fan, the side face of the box body is sequentially provided with an upper air outlet hole, a lower air outlet hole and an air inlet hole from top to bottom, the upper air outlet hole is located between the inner wall of the upper portion of the box body and the uppermost-layer sliding channel, the lower air outlet hole is located below the bottommost-layer sliding layer, and the air inlet hole is located below the lower air outlet hole. The drying box is safe and quick to use and easy to control; the box body is made of stainless steel; a control system is arranged outside separately and is convenient to repair and maintain; the double-channel axial fans are used, an air flow system is manufactured manually, and heating efficiency is doubled.

Description

technical field [0001] The invention relates to a drying box, in particular to a drying box for agricultural production. Background technique [0002] The traditional large-scale drying box has a single structure and uses raw coal for heating, which has low thermal efficiency and is likely to cause environmental pollution and waste of resources. Moreover, the existing large-scale drying boxes generally do not mention heat preservation and fire-proof and heat-insulating functions, which increases potential safety hazards. Generally, the control system of large-scale dryers is located on the side of the cabinet, which is not convenient for maintenance and replacement, and the control is simple, which cannot meet the needs of actual fine production. The air flow in the box is generally blown by a high-power axial fan, or a single axial fan is blown from the top, the wind direction is difficult to control, and it is easy to generate air turbulence and air dead ends. Contents ...

AI Technical Summary

Problems solved by technology

[0002] The traditional large-scale drying box has a single structure and uses raw coal for heating, which has low thermal efficiency and is likely to cause environmental pollution and waste of resources

Moreover, the existing large-scale drying boxes generally do not mention the functions of heat preservation and fire prevention and heat insulation, which increases safety hazards

Generally, the control system of large-scale dryers is located on the side of the box, which is not convenient for maintenance and replacement, and the control is simple, which cannot meet the needs of actual fine production

The air flow in the box is generally blown by a high-power axial flow fan, or a single axial flow fan blows from the top down, the wind direction is difficult to control, and it is easy to generate air turbulence and air dead angle

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