CN206803625U - A kind of heated-air circulation oven of medicinal material drying - Google Patents

Abstract

The utility model discloses a hot air circulation oven for drying medicinal materials, which comprises a box body. The box body has a cavity and is provided with a drying box. The drying box is surrounded by three connected side plates and a top plate. With ventilation holes, the front side of the box is open and pivotally connected to the door panels. There are slide rails on the inner walls of the left and right side panels, which are used to place the medicine tray in a drawer type. The bottom surface and side walls of the medicine tray are made of iron mesh. Made of interlacing; there is an electric heating tube in the box, an air inlet pipe is provided on the top wall of the box, and an air outlet pipe is provided on the side wall of the box. The port of the air outlet pipe is closed and connected to a spring, and one end of the spring is connected to the port. The inner wall of the box is connected with the movable block at the other end, and an air outlet is provided on the side wall of the air outlet pipe; a motor is installed on the outer wall of the box body, and the output shaft extends into the cavity and is connected with a fan, which is opposite to the electric heating pipe. Its technical solution The utility model has the advantages of simple structure and convenient use, greatly improves the drying effect, and is beneficial to improving the quality of dried Chinese medicinal materials.

Description

A hot air circulation oven for drying medicinal materials

technical field

The utility model relates to the technical field of drying equipment for Chinese medicinal materials, in particular to a hot air circulation oven for drying medicinal materials.

Background technique

The hot air circulation oven is used for heating, curing, drying and dehydration of materials in medicine, chemical industry, food, agricultural and sideline products, aquatic products, light industry and other industries. Such as raw materials, Chinese medicine drinking water, extracts, powders, granules, dehydrated vegetables, etc. Its basic principle is to use steam or electricity as a thermal energy source, and the heat is generated by a steam radiator or an electric heating element. The fan is used for convective heat exchange to transfer heat to the material, and the fresh air is continuously replenished and the humid air is discharged, so that the inside of the box can maintain an appropriate relative temperature and humidity during drying.

In the process of drug production, it is usually necessary to dry certain raw materials in the drug. The traditional method is to use pan frying, or light exposure or sun exposure. However, this method not only has a long drying time and low production efficiency, but also because the drying equipment is not closed, the raw materials are easily mixed or eroded by external impurities during the drying process, which affects the product quality of the final drug.

Utility model content

The purpose of this utility model is to provide a hot air circulation oven for drying medicinal materials to overcome the above-mentioned technical defects.

The specific technical scheme is as follows:

A hot air circulation oven for drying medicinal materials, comprising a box body, the box body has a cavity and a drying box is arranged in the cavity, and the drying box is surrounded by three connected side plates and a top plate to form a cuboid structure with an open front side , and each side plate has a plurality of communicating cavities and ventilation holes inside the drying box. The front side of the box has an opening opposite to the opening and is pivotally connected with a door panel for closing the opening. The drying box The inner walls of the side panels on the left and right sides are also provided with several sets of relative slide rails, which are used to insert the medicine tray in a drawer type. The bottom surface and the side wall of the medicine tray are made of interwoven iron mesh;

The box body is also provided with a U-shaped electric heating tube. An air inlet hole is provided on the top wall of the box body and an L-shaped air inlet pipe is provided on the top wall. An air outlet port is opened on the side wall of the box body. An air outlet pipe is pierced, and the port of the air outlet pipe is closed and connected with a spring. Relatively set air outlets;

A motor arranged horizontally is installed on the outer wall of the box body, and the output shaft of the motor extends into the cavity through a through hole provided on the side wall of the box body and is connected with a fan, and the fan is opposite to the electric heating pipe.

Preferably, the open end of the air inlet pipe connected to the box is located between the fan and the electric heating pipe in the horizontal direction.

Preferably, a filter screen is arranged in the air inlet pipe.

Preferably, the top plate is a solid plate, the lower ends of the side plates are fixedly connected to the inner bottom surface of the box body, and the upper ends are connected to the top plate.

The beneficial effects of the above-mentioned technical scheme are:

When the utility model is applied, it is only necessary to open the door panel, pull the medicine tray in a drawer type and put the Chinese herbal medicine into the oven, close the door panel, start the motor and the electric heating tube to run the operation of drying the medicinal material and hot air circulation, and the air flow is carried out by the inlet. The air pipe feeds into the cavity and flows through the electric heating pipe under the blowing of the fan, enters the drying box through the filter hole of the side plate to dry the Chinese medicinal materials, flows out through the filter hole of the opposite side plate and returns to the position of the air inlet pipe , and when the air volume in the box is large, the air flow will automatically flow out from the air outlet pipe due to the increase of the air pressure. The structure is simple, the use is convenient, the drying effect is greatly improved, and the quality of dried Chinese medicinal materials is beneficial to be improved.

Description of drawings

Fig. 1 is the internal structure schematic diagram of the hot air circulation oven used for drying medicinal materials of the present invention;

Fig. 2 is a schematic diagram of the external structure of the hot air circulation oven used for drying medicinal materials of the present invention.

detailed description

In order to make the technical means, creative features, goals and effects realized by the utility model easy to understand, the following examples are combined with accompanying drawings 1 and 2 to describe the hot air circulation oven for drying medicinal materials provided by the utility model in detail.

Referring to FIG. 1 , it is a schematic diagram of the internal structure of the hot air circulation oven for drying medicinal materials; combined with FIG. 2 , it is a schematic diagram of the external structure of the hot air circulation oven for drying medicinal materials. In order to clearly show the structural features of this embodiment, part of the structure is omitted in the figure, and part of the structure is shown in a perspective or cross-sectional manner.

As shown in Fig. 1 and Fig. 2, the hot air circulation oven for drying medicinal materials provided by the utility model comprises a casing 1, a cavity 4 is arranged in the casing 1 and a drying box is arranged in the cavity 4, and the drying box consists of Three connected side plates 2 and a top plate 3 enclose a cuboid structure with an open front side, and each side plate 2 has a plurality of communicating cavities 4 and ventilation holes inside the drying box, and the front side of the box body 1 has The opening opposite to the opening is pivotally connected with a door panel 15 for closing the opening, and several groups of relative slide rails 5 are provided on the inner walls of the side panels 2 on the left and right sides of the drying box for drawer-type placement. The medicine tray 6, the bottom surface and the side wall of the medicine tray 6 are all made of interwoven iron mesh; a U-shaped electric heating tube 7 is also arranged in the box body 1, and an air inlet hole is provided on the top wall of the box body 1. An L-shaped air inlet pipe 8 is pierced. An air outlet is provided on the side wall of the box body 1 and an air outlet pipe 11 is pierced. The port of the air outlet pipe 11 is closed and connected to a spring 12. The spring 12 is located at In the air outlet pipe 11, one end of the spring 12 is connected to the inner wall of the port, and the other end is connected to a movable block 13 to form a piston structure. The side wall of the air outlet pipe 11 is provided with several air outlet holes 14 that are arranged oppositely, so that When the air pressure in the box 1 is too high, the movable block 13 is pushed to press the spring 12 to move outward, thereby exposing the air hole 14 and connecting the cavity 4 to the outside for exhaust, otherwise it is in a closed state; the outer wall of the box 1 is installed There is a motor 9 arranged horizontally, and the output shaft of the motor 9 extends into the cavity 4 through a through hole provided on the side wall of the casing 1 and is connected with a fan 10 , and the fan 10 is opposite to the electric heating tube 7 .

In a preferred embodiment, the open end of the air inlet pipe 8 connected to the box body 1 is located between the fan 10 and the electric heating pipe 7 in the horizontal direction. Further, a filter screen is arranged in the air inlet pipe 8 . Further, the top plate 3 is a solid plate, the lower ends of the side plates 2 are fixedly connected to the inner bottom surface of the box body 1 , and the upper ends are connected to the top plate 3 .

Specifically, the motor 9 adopts a servo motor, and the electric heating tube 7 is an electric heating coil commonly used in the market. When this embodiment is applied, it is only necessary to open the door panel 15, pull the medicine tray 6 in a drawer type, and put in the Chinese herbal medicines. Push it into the oven, close the door panel 15, start the motor 9 and the electric heating tube 7 to run the operation of drying medicinal materials and hot air circulation, the air flow is sent into the cavity 4 by the air inlet pipe 8 and flows through the electric heating tube 7 under the blowing of the fan 10, and then The filter hole of the side plate 2 enters the drying box to dry the Chinese medicinal materials and flows out from the filter hole of the opposite side plate 2 and returns to the position of the air inlet pipe 8. Big, the air current flows out from the air outlet pipe 11 automatically. The utility model has the advantages of simple structure and convenient use, greatly improves the drying effect, and is beneficial to improving the quality of dried Chinese medicinal materials.

The above descriptions are only preferred embodiments of the present utility model, and are only illustrative, not restrictive, of the present utility model. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the utility model, but all will fall within the protection scope of the utility model.

Claims (4)

1. a kind of heated-air circulation oven of medicinal material drying, including casing (1), the casing (1) is interior with cavity (4) and described Cavity is provided with a drying baker in (4), it is characterised in that

The drying baker is encircled into the rectangular parallelepiped structure of front openings by three pieces of connected side plates (2) and one piece of top plate (3), and often The air vent being respectively provided with one side plate (2) inside multiple connections cavity (4) and the drying baker, the casing (1) Front side has and the opening is relative open and pivotally connected has to close the open door-plate (15), the drying baker The left and right sides the side plate (2) inwall on be additionally provided with some groups of relative slide rails (5), insert medicine to drawer type Disk (6), the bottom surface for putting batch pan (6) and side wall interweave by iron net to be made；

U-shaped electrothermal tube (7) is additionally provided with the casing (1), a fresh air inlet is offered on the roof of the casing (1) And an overall L-shaped blast pipe (8) is equipped with, offer an air outlet in a side wall of the casing (1) and be equipped with one Discharge pipe (11), the port closed of the discharge pipe (11) are simultaneously connected with a spring (12), and the spring (12) goes out described in The inwall of in airduct (11) and one end connection port of the spring (12), the other end are connected with a movable block (13), institute State the exhaust vent (14) that several are offered in the side wall of discharge pipe (11) and is oppositely arranged；

One horizontally disposed motor (9) is installed on the lateral wall of the casing (1), and the output shaft of the motor (9) via The through hole being opened in the casing (1) side wall stretches into the cavity (4) and is connected with fan (10), and the fan (10) It is relative with the electrothermal tube (7) position.

2. the heated-air circulation oven of medicinal material drying as claimed in claim 1, it is characterised in that the blast pipe (8) and institute Openend that casing (1) is connected is stated in the horizontal direction between the fan (10) and the electrothermal tube (7).

3. the heated-air circulation oven of medicinal material drying as claimed in claim 2, it is characterised in that set in the blast pipe (8) There is filter screen.

4. the heated-air circulation oven of medicinal material drying as claimed in claim 3, it is characterised in that the top plate (3) is solid Plate, the lower end of the side plate (2) are connected the inner bottom surface of the casing (1), and upper end connects the top plate (3).