Electric heating air circulation drying oven
An air circulation and electric heating technology, applied in the field of drying boxes, can solve the problems of air turbulence, no mention of heat preservation and fireproof and heat insulation functions, inconvenient maintenance and replacement, etc., to achieve uniform and fast heating, and avoid uneven heating , the effect of controllable heat size
Active Publication Date: 2018-07-24
HARBIN ENG UNIV
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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
Method used
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[0015] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0016] combine Figure 1~3 , the drying box is mainly composed of box 1, axial flow fan 2, return pipe 3, connecting elbow 4, sensor 5, swing plate 6, door 7, air outlet 8, air inlet 9, control cabinet 10, heating rod 11 , 12 metal sieve plates.
[0017] It works like this:
[0018] One end of the axial flow fan 2 is embedded in the box body 1, and the other end is rotatably connected to the return pipe 3 through the elbow 4, and the other end of the return pipe 3 is connected to the box body 1 through the elbow 4, and each connection part is sealed deal with;
[0019] Install the sensor 5 on the upper part of the box body 1 and connect it tightly;
[0020] Fix the swing plate 5 in the box through the slideway.
[0021] Install a one-way fan blade axial flow fan at the air outlet 8 and the air inlet 9, and fix it.
[0022] Fix the heating rod 11 under the me...
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The object of the present invention is to provide an electric heating air circulation drying box, including a box body, a heating rod, and an air circulation unit. The upper end of the box body is provided with an air outlet, and the lower end of the box body is provided with an air inlet. For the first axial flow fan and the second axial flow fan, a slideway is arranged in the box, and a swing plate is placed on the slideway. The air circulation unit includes a first return duct, a second return duct, a third axial flow fan, a fourth For the axial flow fan and the fourth axial flow fan, the upper air outlet, the lower air outlet, and the air inlet are arranged on the side of the box from top to bottom, and the upper air outlet is located between the upper inner wall of the box and the uppermost slideway , the lower air outlet is located under the slideway on the lowest floor, and the air inlet is located under the lower air outlet. The invention is safe, fast, and easy to control. The box body is made of stainless steel, and the control system is placed outside alone, which is convenient for repair and maintenance. It uses a double-channel axial flow fan, and an air flow system is used in the manual manufacturing, so that the 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 ...
Claims
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IPC IPC(8): F26B9/06F26B21/04F26B23/06F26B25/12
Inventor 李冰费浚纯邢博闻张兰勇李相武
Owner HARBIN ENG UNIV