CN107084598A - A hot air circulation dryer - Google Patents

Abstract

The invention discloses a hot air circulation dryer, which is characterized in that: the drying room is internally provided with an upper drying chamber, a heating chamber and a lower drying chamber from top to bottom in sequence, and the upper drying chamber and the lower drying chamber are respectively communicated with the heating chamber; a heating device is arranged in the heating chamber; the upper drying chamber and the lower drying chamber are respectively divided into an upper left drying chamber, an upper right drying chamber, a lower left drying chamber and a lower right drying chamber by an upper partition plate and a lower partition plate; the upper left drying chamber is communicated with the upper right drying chamber, and the lower left drying chamber is communicated with the lower right drying chamber. The invention has reasonable structure, and the hot air flow can flow forward and backward, thereby effectively solving the problem of uneven drying of materials. The heating chamber is internally provided with a heating device for heating air, high-temperature hot air enters the drying chamber to dry materials, and finally the high-temperature hot air is discharged at low temperature through the heat exchange device, and the energy-saving effect is realized by heat energy recovery.

Description

A hot air circulation dryer

technical field

The invention relates to the field of drying equipment, in particular to a hot air circulation dryer.

Background technique

The hot air circulation dryer generally includes a drying room and a heating room. The drying room is equipped with a hot air outlet, a material inlet, a material outlet, and a dehumidification window. There is a heating device in the heating chamber to heat the air, and the hot air ascends or presses down to enter the drying chamber to dry the materials, and then discharges them directly from the dehumidification window.

Hot air rising or pressing down into the drying chamber will cause uneven drying of the upper and lower materials, and the hot air is directly discharged from the dehumidification window. The heat discharge will have a certain impact on the surrounding environment and the heat will not be fully utilized, resulting in energy waste.

Contents of the invention

The object of the present invention is to overcome the disadvantages of the above-mentioned prior art and provide an energy-saving, uniform and practical hot air circulation dryer.

The present invention is achieved in the following manner:

A hot air circulation dryer, characterized in that it includes a drying room, in which an upper drying room, a heating room, and a lower drying room are sequentially arranged from top to bottom, and the upper drying room and the The lower drying chamber is respectively connected with the heating chamber; the heating chamber is provided with a heating device; the upper drying chamber and the lower drying chamber are respectively divided into a left upper drying chamber and a right upper drying chamber by an upper partition and a lower partition. The drying chamber is connected with the lower left drying chamber and the lower right drying chamber; the upper left drying chamber is connected with the upper right drying chamber, and the lower left drying chamber is connected with the lower right drying chamber.

Further, the upper left drying chamber, the upper right drying chamber, the lower left drying chamber, and the lower right drying chamber are respectively equipped with forward and reverse circulation fans.

Further, the forward and reverse circulation fan is arranged on the side wall of the heating chamber.

Further, the sides of the upper drying chamber and the lower drying chamber are respectively provided with heat exchange devices.

The beneficial effects of the present invention are: the structure is reasonable, the hot air flow can flow forward and backward, which effectively solves the unevenness of the drying materials; the heating chamber is equipped with a heating device to heat the air, and the high-temperature hot air enters the drying chamber to dry the materials Dry, the final high-temperature hot air is discharged at low temperature through the heat exchange device, and the heat energy is recovered to achieve energy saving effect; the high heat exchange rate of the heat exchange device enables the heat energy to be recycled and used, and the low-energy emission reduces heat loss, realizes energy saving effect, and reduces environmental pollution. The influence of the environment; make the material heated evenly, and avoid many structural defects that cause uneven drying of the material.

Description of drawings

Fig. 1 front view of structure of the present invention;

Fig. 2 is a top view of the structure of the present invention.

detailed description

The technical solutions of the present invention will be further specifically described below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the embodiments of the present invention are not limited to the following examples, and any modifications and/or changes made to the present invention will fall within the protection scope of the present invention.

Example:

A hot air circulation dryer, as shown in Figure 1 and Figure 2, includes a drying room 18, and the drying room 18 is sequentially provided with an upper drying room, a heating room, and a lower drying room from top to bottom, The upper drying chamber and the lower drying chamber communicate with the heating chamber respectively; the heating device 1 is arranged in the heating chamber; Divided into upper left drying chamber 12, upper right drying chamber 13, lower left drying chamber 11, lower right drying chamber 10; The lower drying chamber 10 is connected; the upper left drying chamber 12, the upper right drying chamber 13, the lower left drying chamber 11, and the lower right drying chamber 10 are respectively provided with forward and reverse circulation fans 14; 14 is located on the side wall of the heating chamber.

In this embodiment, the sides of the upper drying chamber and the lower drying chamber are provided with heat exchange devices 19 respectively, and the exhaust airflow and intake airflow of the heat exchange device 19 are not connected; the heat exchange device 19 can be configured according to The positive and negative directions of the airflow inside the upper drying chamber and the lower drying chamber change the airflow switching between the exhaust airflow and the intake airflow of the heat exchange device 19 .

In this embodiment, the forward and reverse circulation fan 14 allows the hot air to flow forward and backward, which effectively solves the unevenness of the drying material; the heating chamber is equipped with a heating device 1 to heat the air, and the high-temperature hot air enters the upper drying chamber The materials are dried in the lower and lower drying chambers, and finally the high-temperature hot air is discharged at a low temperature through the heat exchange device 19, and the heat energy is recovered to realize energy-saving effect.

In this embodiment, the upper drying chamber and the lower drying chamber form tunnels to increase the velocity of hot air, and the structure design is reasonable.

In this embodiment, the high-temperature hot air in the heating chamber flows in the same direction under the action of the forward and reverse circulation fan 14, and the forward and reverse rotation of the forward and reverse circulation fan 14 makes the high-temperature hot air flow clockwise or counterclockwise. flow, which effectively solves the unevenness of the drying material; according to the forward and reverse operation of the forward and reverse circulation fan 14, the airflow switching between the exhaust airflow and the intake airflow of the heat exchange device 19 is changed; thereby achieving a higher heat High exchange rate and heat recovery, low energy emission to achieve energy saving effect.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (4)

1. a kind of heated-air circulation dryer, it is characterised in that：Including baking room, it is sequentially provided with from top to bottom in the baking room Drying chamber, heating chamber, lower drying chamber, the upper drying chamber and lower drying chamber are connected with heating chamber respectively；In the heating chamber Provided with heater；In the upper drying chamber and lower drying chamber respectively by upper spacer and lower clapboard be separated into upper left drying chamber, Upper right drying chamber and lower-left drying chamber, bottom right drying chamber；The upper left drying chamber is connected with upper right drying chamber, lower-left drying chamber It is connected with bottom right drying chamber.

2. a kind of heated-air circulation dryer according to claim 1, it is characterised in that：The upper left drying chamber, upper right are dried Dry chamber, lower-left drying chamber, it is respectively equipped with rotating circulating fan in the drying chamber of bottom right.

3. a kind of heated-air circulation dryer according to claim 2, it is characterised in that：The rotating circulating fan is located at On the side wall of heating chamber.

4. a kind of heated-air circulation dryer according to claim 1, it is characterised in that：The upper drying chamber and lower drying chamber Side be respectively equipped with heat-exchange device.