CN217715821U

CN217715821U - Heated air circulation drying cabinet

Info

Publication number: CN217715821U
Application number: CN202221978296.0U
Authority: CN
Inventors: 顿骐菡; 顿艳涛; 薛敬; 索慧; 韦龑龑; 任天宇
Original assignee: Jinnuokang Pharmaceutical Technology Shijiazhuang Co ltd
Current assignee: Jinnuokang Pharmaceutical Technology Shijiazhuang Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-01
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to a heated air circulation drying cabinet, including the drying cabinet that has input and output, establish the transport platform in the drying cabinet, around establishing the transportation area of carrying the bench, the through-hole of equipartition on the transportation area, establish and carry bench and be close to two sets of infrared heating pipe and the gas inflow end and the heated air circulation unit that gaseous outflow end all are connected with the drying cabinet of input and output respectively, the both ends of carrying the platform stretch out from input and output respectively, gas inflow end and gas outflow end are located between two sets of infrared heating pipe. The utility model discloses a heated air circulation drying cabinet dries the granule through the mode that inside heating and external heating combine, can shorten the stoving time, reduces the energy consumption of stoving process.

Description

Heated air circulation drying cabinet

Technical Field

The application relates to the technical field of medicine production, in particular to a heated air circulation drying box.

Background

The post-carbocisteine particles obtained through the granulating process contain moisture, and can be subpackaged and packaged only after being dried until the moisture is less than or equal to 1.5 percent, the current used mode is to put the post-carbocisteine particles into a drying box for drying, and the current common heating modes comprise hot air drying and spot heating plate drying.

In both drying modes, the post-carbocisteine particles are in a high-temperature environment, and then the moisture in the particles is slowly evaporated. However, the drying method is a process from outside to inside, when the outer skin of the particles is dried, the difficulty in escaping the internal moisture is increased, and in order to solve the problem, only a step-type drying method can be selected, namely, the temperature in the drying box needs to be slowly increased, but the drying time is prolonged, and the energy consumption of the drying process is increased.

SUMMERY OF THE UTILITY MODEL

The application provides a heated air circulation drying cabinet dries the granule through the mode that inside heating and external heating combine, can shorten the stoving time, reduces the energy consumption of stoving process.

The above object of the present application is achieved by the following technical solutions:

the application provides a heated air circulation drying cabinet includes:

the drying box body is provided with an input end and an output end;

the conveying platform is arranged in the drying box body, and two ends of the conveying platform respectively extend out of the input end and the output end;

the conveying belt is wound on the conveying platform;

through holes uniformly distributed on the conveying belt;

the two groups of infrared heating pipes are arranged on the drying box body and are respectively close to the input end and the output end; and

the hot air circulating unit is characterized in that a gas inflow end and a gas outflow end are both connected with the drying box body;

wherein, the gas inflow end and the gas outflow end are positioned between the two groups of infrared heating pipes.

In one possible implementation of the present application, the upright posts are evenly distributed on the working surface of the conveyor belt.

In one possible implementation of the present application, the infrared heating pipes in a group are located both inside and outside the conveyor belt.

In one possible implementation of the present application, the arrangement direction of the infrared heating pipes inside and outside the conveyor belt is in accordance with the moving direction of the conveyor belt.

In a possible implementation manner of the application, a duct machine is arranged between the heated air circulation unit and the two groups of infrared heating pipes, and the duct machine is used for forming an air barrier between the heated air circulation unit and the two groups of infrared heating pipes.

In one possible implementation of the present application, the heated air circulation unit includes:

a hot air unit;

the two ends of the input pipeline are respectively connected with the hot air unit and the drying box body; and

and two ends of the output pipeline are respectively connected with the hot air unit and the drying box body.

In one possible implementation of the present application, the input duct is connected to the top surface of the drying box;

one end of the output pipeline positioned in the drying box body extends into the conveying belt and faces the top surface of the drying box body.

In one possible implementation of the application, the dimensions of the input duct and the output duct are both larger than the width of the conveyor belt, perpendicular to the direction of movement of the conveyor belt.

Drawings

Fig. 1 is a schematic structural diagram of a wind circulation drying box provided by the present application.

Fig. 2 is a schematic connection diagram of a hot air circulation unit and a drying box provided by the present application.

Fig. 3 is a cross-sectional schematic view of a conveyor belt as provided herein.

Fig. 4 is a plan view given based on fig. 3.

In the figure, 11, a drying box body 111, an input end 112, an output end 12, a conveying platform 13, a conveying belt 131, a stand column 14, a through hole 15, an infrared heating pipe 2, a hot air circulating unit 21, a hot air unit 22, an input pipeline 23, an output pipeline 3 and an air duct machine.

Detailed Description

The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a hot air circulation drying oven disclosed in the present application is composed of a drying oven body 11, a conveying table 12, a conveying belt 13, a column 131, an infrared heating pipe 15, a hot air circulation unit 2, and the like, wherein both ends of the drying oven body 11 are open ends, i.e., an input end 111 and an output end 112. The conveying platform 12 is arranged in the drying box body 11, and two ends of the conveying platform respectively extend out of the input end 111 and the output end 112, so that when the particles to be dried are placed and the dried particles are collected, normal operation of a drying process in the drying box body 11 cannot be influenced.

The conveyer belt 13 is wound on the conveyer table 12 and is used for driving the particles to be dried to pass through the two groups of infrared heating pipes 15 and the hot air circulating unit 2 in sequence. The conveyer belt 13 is provided with through holes 14, and the through holes 14 are used for enabling hot air to pass through the conveyer belt 13, so that the particles on the upper layer and the lower layer of the conveyer belt 13 can be dried.

In some possible implementations, the conveying platform 12 is composed of a worktable, rotating rollers mounted on the worktable, and a motor connected to one of the rotating rollers for driving the rotating roller to rotate, and the rotating roller drives the conveying belt 13 to move by friction.

The number of the infrared heating pipes 15 is two, the two sets of infrared heating pipes 15 are all arranged on the drying box body 11 and are respectively close to the input end 111 and the output end 112, and the set of infrared heating pipes 15 at the input end 111 have two functions:

1. preheating the particles to be dried to make the internal and external temperatures of the particles to be dried consistent;

2. a part of water contained in the particles to be dried is evaporated by heating.

The set of infrared heating pipes 15 at the output end 112 is used for heating the pellets to be dried for the third time, so that the moisture content in the dried pellets meets the requirement.

The secondary heating of the particles to be dried is performed by the heated air circulation unit 2, the gas inflow end and the gas outflow end of the heated air circulation unit 2 are both connected with the drying box body 11, and the gas inflow end and the gas outflow end are located between the two groups of infrared heating pipes 15.

The heated air circulation unit 2 is used for generating heated air and driving the heated air to circularly flow between the drying box body 11 and the heated air circulation unit 2. By contacting the hot air with the surface of the pellets, moisture contained in the pellets can be rapidly evaporated.

Referring to fig. 3 and 4, as a specific embodiment of the hot air circulation drying box provided by the application, the working surface of the conveyor belt 13 is uniformly provided with two columns 131, one column 131 is used for fixing the particles placed on the conveyor belt 13 to prevent the particles from moving in the moving and contacting with hot air, and the other column 131 is used for providing a height reference so that a worker can use the height of the column 131 as a reference when laying the particles on the conveyor belt 13.

Referring to fig. 1, as one embodiment of the hot air circulation drying box provided by the application, infrared heating pipes 15 in one group are located both inside the conveyor belt 13 and outside the conveyor belt 13. Here, inside the conveyor belt 13 and outside the conveyor belt 13 refer to the inside surface of the conveyor belt 13 and the outside surface of the conveyor belt 13.

It should be understood that the conveyor belt 13 is an annular structure having an inner side and an outer side, and when the infrared heating pipe 15 is simultaneously located inside the conveyor belt 13 and outside the conveyor belt 13, particles placed on the conveyor belt 13 can be simultaneously heated from above and below, and a better heating effect can be obtained.

Further, the arrangement direction of the infrared heating pipes 15 located inside the conveyor belt 13 and outside the conveyor belt 13 coincides with the moving direction of the conveyor belt 13.

Referring to fig. 1, as a specific embodiment of the heated air circulation drying box provided by the application, the duct machines 3 are respectively disposed between the heated air circulation unit 2 and the two sets of infrared heating pipes 15, and the duct machines 3 are used to form an air barrier between the heated air circulation unit 2 and the two sets of infrared heating pipes 15, so as to prevent heat generated by the heated air circulation unit 2 from escaping, and to contribute to improving the utilization rate of heat.

Referring to fig. 2, the hot air circulating unit 2 includes a hot air unit 21, an input pipeline 22 and an output pipeline 23, the hot air unit 21 is used for heating air, the heating mode includes electric heating and gas heating, both ends of the input pipeline 22 and the output pipeline 23 are respectively connected to the hot air unit 21 and the drying box 11, so that the hot air unit 21 and the drying box 11 form a loop, and hot air generated by the hot air unit 21 can circulate between the hot air unit 21 and the drying box 11.

Further, an input duct 22 is connected to the top surface of the drying cabinet 11, and an output duct 23 is located at an end of the drying cabinet 11 extending into the conveyor belt 13 and facing the top surface of the drying cabinet 11. The mode can shorten the flowing distance of hot air and is beneficial to improving the drying effect.

Further, the dimension of the input duct 22 and the dimension of the output duct 23 are larger than the width of the conveyor belt 13, perpendicular to the moving direction of the conveyor belt 13.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a heated air circulation drying cabinet which characterized in that includes:

the drying box body (11) is provided with an input end (111) and an output end (112);

the conveying platform (12) is arranged in the drying box body (11), and two ends of the conveying platform (12) respectively extend out of the input end (111) and the output end (112);

a conveying belt (13) wound on the conveying table (12);

through holes (14) uniformly distributed on the conveying belt (13);

two groups of infrared heating pipes (15) are arranged on the drying box body (11) and are respectively close to the input end (111) and the output end (112); and

the hot air circulating unit (2), the gas inflow end and the gas outflow end are both connected with the drying box body (11);

wherein the gas inflow end and the gas outflow end are positioned between the two groups of infrared heating pipes (15).

2. The hot air circulation drying oven according to claim 1, characterized in that the upright posts (131) are uniformly distributed on the working surface of the conveyor belt (13).

3. Hot air circulation drying box according to claim 1, characterised in that the infrared heating pipes (15) of a group are located both inside the conveyor belt (13) and outside the conveyor belt (13).

4. The hot-air circulation drying oven according to claim 3, characterized in that the arrangement direction of the infrared heating pipes (15) inside the conveyor belt (13) and outside the conveyor belt (13) coincides with the moving direction of the conveyor belt (13).

5. The heated air circulation drying box according to any one of claims 1 to 4, characterized in that a ducted air conditioner (3) is arranged between the heated air circulation unit (2) and the two groups of infrared heating pipes (15), and the ducted air conditioner (3) is used for forming an air barrier between the heated air circulation unit (2) and the two groups of infrared heating pipes (15).

6. Hot air circulation drying box according to claim 1, characterised in that the hot air circulation unit (2) comprises:

a hot air unit (21);

an input pipeline (22), two ends of which are respectively connected with the hot air unit (21) and the drying box body (11); and

and two ends of the output pipeline (23) are respectively connected with the hot air unit (21) and the drying box body (11).

7. Hot air circulation drying box according to claim 6, characterised in that the inlet duct (22) is connected to the top surface of the drying box (11);

one end of the output pipeline (23) positioned in the drying box body (11) extends into the conveying belt (13) and faces the top surface of the drying box body (11).

8. Heated air circulation drying box according to claim 7, characterised in that the dimensions of the inlet duct (22) and the outlet duct (23) are larger than the width of the conveyor belt (13) perpendicular to the direction of movement of the conveyor belt (13).