A circulating air path dryer

Abstract

The utility model discloses a circulating air path dryer relates to the field of dryer. This circulating air path dryer, including air path dryer installation casing, air path dryer installation casing left and right two ends are installed with first heat pump dryer and second heat pump dryer, and the partition mechanism is installed in air path dryer installation casing, and the partition mechanism is used for dividing into two independent drying interval in air path dryer installation casing. This circulating air path dryer, adopt the mechanism of setting up double heat pump dryer and double fan wall in drying circulating air path, and the first heat pump dryer, second heat pump dryer, first circulating fan and second circulating fan cooperate with each other, can realize the relay of air pressure and heat source and the 360 degree circulating rotation of circulating air path, guarantee the uniformity of drying effect, and through the control of dryer partition board translation door sliding, it is convenient to carry out quality spot check to material import and export and drying state.

Description

Technical Field

[0001] This utility model relates to the field of dryers, and in particular to a circulating air dryer. Background Technology

[0002] Heat pump dryers are widely used in industrial and agricultural drying fields due to their energy-saving and environmental protection advantages. The existing heat pump drying room circulation air path is mainly divided into two types: vertical airflow and horizontal airflow. The two have their own characteristics in terms of airflow distribution and drying efficiency, and are suitable for the drying needs of different materials.

[0003] Existing circulating air dryers are industrial equipment that achieves efficient drying of materials through forced circulation of hot air. Their core principle is to use a fan to drive hot air to circulate in a closed air duct, so that the material is heated evenly and moisture evaporates quickly. The circulating air ducts of existing heat pump drying rooms are mainly divided into two types: vertical airflow and horizontal airflow. However, both airflow methods use a single heat source, which affects uniformity. During the entire circulation process, the outlet and return air temperatures of the heat pump dryer are too large, resulting in different degrees of drying of the material at different locations. The temperature is high and the drying time is short at the location closer to the heat source, resulting in over-drying defects. The drying time is long at the location farther from the heat source, resulting in poor drying. In addition, the fan pressure fluctuates greatly at different locations. Utility Model Content

[0004] The purpose of this invention is to provide a circulating airflow dryer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a circulating airflow dryer includes an airflow dryer mounting shell, a first heat pump dryer and a second heat pump dryer are respectively mounted on the left and right ends of the airflow dryer mounting shell, and a partition mechanism is installed inside the airflow dryer mounting shell to divide the airflow dryer mounting shell into two independent drying zones;

[0006] The air duct dryer is equipped with a first circulating fan and a second circulating fan inside the mounting housing. The first circulating fan and the second circulating fan correspond to the first heat pump dryer and the second heat pump dryer, respectively. A drying trolley is also provided inside the air duct dryer mounting housing.

[0007] The partition mechanism includes a dryer partition plate and a dryer partition plate sliding door. The dryer partition plate is fixedly connected to the middle position of the air duct dryer mounting shell, and the dryer partition plate sliding door is slidably connected to the dryer partition plate.

[0008] The air-flow dryer is equipped with a first support structure and a second support structure, which are fixedly connected inside the housing. The first circulating fan is installed on the first support structure, and the second circulating fan is installed on the second support structure.

[0009] The air-cooled dryer is fitted with a left maintenance door and a right maintenance door on the left and right sides of its housing, respectively, which facilitate the maintenance of the fan walls on the left and right sides.

[0010] The first circulating fan and the first supporting structure form a fan wall with an integral structure, and the second circulating fan and the second supporting structure form another fan wall with an integral structure.

[0011] The air-flow dryer is fitted with a dryer sealing door hinged to its housing, which is used to prevent airflow and heat from escaping.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This circulating air dryer employs a mechanism that incorporates dual heat pump dryers and dual fan walls within the drying circulating air path. The first heat pump dryer, the second heat pump dryer, the first circulating fan, and the second circulating fan work together to achieve the relay of air pressure and heat source, as well as the 360-degree rotation of the circulating air path, ensuring the uniformity of the drying effect. At the same time, by controlling the sliding door of the dryer partition, it is convenient to conduct quality checks on the material entry and exit and the drying status. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the sealing door structure of the dryer of this utility model.

[0016] In the diagram: 1. First heat pump dryer; 2. Second heat pump dryer; 3. First circulating fan; 4. Second circulating fan; 5. First support structure; 6. Second support structure; 7. Right maintenance door; 8. Left maintenance door; 9. Air duct dryer mounting housing; 10. Drying trolley; 11. Partition mechanism; 1101. Dryer partition plate; 1102. Dryer partition sliding door; 12. Dryer sealing door. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides, for example Figure 1 and Figure 2The illustrated circulating airflow dryer includes an airflow dryer mounting housing 9. The airflow dryer mounting housing 9 serves as the main frame of the dryer, supporting all internal components and forming a closed drying environment to prevent heat and airflow leakage. The airflow dryer mounting housing 9 is made of stainless steel with a thickness of 3mm and is coated with a high-temperature resistant and corrosion-resistant coating inside. Mounting holes are reserved at both ends of the housing for fixing the first heat pump dryer 1 and the second heat pump dryer 2. A drain outlet is provided at the bottom of the housing to connect to a condensate recovery device.

[0019] The first heat pump dryer 1 and the second heat pump dryer 2 are respectively installed at the left and right ends of the air duct dryer mounting shell 9. The first heat pump dryer 1 and the second heat pump dryer 2 serve as a dual heat source system, providing independent heat energy respectively. The relay heating solves the problem of uneven temperature caused by a single heat source. The heat pump dryer adopts variable frequency compressor technology, and the temperature adjustment range is 30-85℃. It is connected to the internal circulating fan through pipes. The air duct dryer mounting shell 9 is equipped with a partition mechanism 11, which is used to divide the air duct dryer mounting shell 9 into two independent drying zones.

[0020] The air-flow dryer housing 9 houses a first circulating fan 3 and a second circulating fan 4. These fans, along with the first support structure 5 and the second support structure 6, form a double-fan wall structure, driving hot air to circulate 360 ​​degrees within the housing. The circulating fans are centrifugal, and their speeds are synchronously controlled by a frequency converter to ensure uniform air pressure and temperature distribution. The first circulating fan 3 and the second circulating fan 4 correspond to the first heat pump dryer 1 and the second heat pump dryer 2, respectively. A drying trolley 10 is installed within the air-flow dryer housing 9. The drying trolley 10 carries the material to be dried, is adapted to a dual-zone design, and is made of stainless steel with five layers, each capable of bearing 50 kg. Rollers are installed at the bottom.

[0021] The partition mechanism 11 includes a dryer partition 1101 and a dryer partition sliding door 1102. The dryer partition 1101 is fixedly connected to the middle position of the air duct dryer mounting shell 9. The dryer partition 1101 is made of 5mm thick aluminum plate and is vertically fixed to the middle position of the shell, dividing the internal space into two. The dryer partition sliding door 1102 is slidably connected to the dryer partition 1101. The dryer partition sliding door 1102 is driven by an electric push rod and can be fully opened or closed for material entry and exit and quality inspection.

[0022] The first support structure 5 and the second support structure 6 are fixedly connected inside the housing 9 of the air dryer. The first support structure 5 and the second support structure 6 are used to fix the circulating fan, forming a stable fan wall structure to reduce vibration and noise. The first support structure 5 and the second support structure 6 are galvanized steel frames with shock-absorbing rubber pads installed at the bottom. The first circulating fan 3 is installed on the first support structure 5, and the second circulating fan 4 is installed on the second support structure 6.

[0023] The air-cooled dryer's housing 9 has a left maintenance door 8 and a right maintenance door 7 hinged to its left and right sides, respectively. These doors facilitate maintenance of the fan walls on both sides, reducing downtime. The maintenance doors are hinged, filled with sound-absorbing cotton, and sealed with sealing strips at the door seams. The left maintenance door 8 corresponds to the area of ​​the first circulating fan 3, and the right maintenance door 7 corresponds to the area of ​​the second circulating fan 4.

[0024] The first circulating fan 3 and the first supporting structure 5 form a fan wall with an integral structure, and the second circulating fan 4 and the second supporting structure 6 form another fan wall with an integral structure.

[0025] The air-duct dryer housing 9 is hinged with a dryer sealing door 12. The dryer sealing door 12 is used to ensure that airflow and heat do not leak out. The dryer sealing door 12 has a double-layer glass structure, equipped with an electromagnetic lock and a pressure sensor, and the door frame is fitted with a silicone sealing strip.

[0026] Example 1: The space inside the air-duct dryer housing 9 is divided into two independent drying zones by a partition mechanism 11. These two drying zones are connected at their left and right ends. The first heat pump dryer 1 and the second heat pump dryer 2 are placed at opposite ends of the air-duct dryer housing 9. The first circulating fan 3 is fixed to the first support structure 5 to form an integral fan wall, which is placed at the first heat pump dryer 1. The second circulating fan 4 is fixed to the second support structure 6 to form an integral fan wall, which is placed at the second heat pump dryer 2. The heat generated by the condenser of the first heat pump dryer 1, under the constraint of the partition mechanism 11 and the air pressure of the fan wall, is forced through the material to be dried placed on the drying trolley 10 and blown into the return air of the second heat pump dryer 2. The air vents heat and dry the materials in the drying zone of the dryer during the blowing process. The dehumidifying fan built into the return air of the second heat pump dryer 2 leads the hot and humid air to the evaporator of the dryer. The evaporator of the second heat pump dryer 2 condenses and dehumidifies the hot and humid air. The dehumidified air then flows through the condenser of the second heat pump dryer 2 for reheating. It forms a hot airflow after passing through the fan wall and enters the lower drying zone of the dryer to heat the materials. The hot and humid air enters the return air vent of the first heat pump dryer 1 under the action of the fan wall air pressure. The first heat pump dryer 1 condenses, dehumidifies, and reheats the hot and humid air, and then blows it out by the corresponding fan wall to continue a new working cycle. The dryer mounting shell 9 is designed with a dryer sealing door 12, which needs to be closed during operation to ensure that the airflow and heat do not leak out.

[0027] Example 2: A left maintenance door 8 and a right maintenance door 7 are respectively provided on both sides of the air dryer housing 9 to facilitate maintenance of the fan walls on the left and right sides. The dryer partition sliding door 1102, which slides inside the partition mechanism 11, is used for material entry and exit and quality inspection of the drying status. The dryer partition sliding door 1102 is kept closed during the drying process to avoid short circuit of the drying air path.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circulating airflow dryer, comprising an airflow dryer mounting housing (9), characterized in that, The first heat pump dryer (1) and the second heat pump dryer (2) are respectively installed at the left and right ends of the air dryer mounting shell (9). A partition mechanism (11) is installed inside the air dryer mounting shell (9). The partition mechanism (11) is used to divide the air dryer mounting shell (9) into two independent drying zones. The air dryer mounting housing (9) is equipped with a first circulating fan (3) and a second circulating fan (4), which correspond to the first heat pump dryer (1) and the second heat pump dryer (2) respectively. The air dryer mounting housing (9) is equipped with a drying trolley (10).

2. The circulating air dryer according to claim 1, characterized in that, The partition mechanism (11) includes a dryer partition plate (1101) and a dryer partition sliding door (1102). The dryer partition plate (1101) is fixedly connected to the middle position of the air duct dryer mounting housing (9), and the dryer partition sliding door (1102) is slidably connected to the dryer partition plate (1101).

3. A circulating airflow dryer according to claim 2, characterized in that, The air dryer housing (9) is fixedly connected to a first support structure (5) and a second support structure (6). The first circulating fan (3) is installed on the first support structure (5), and the second circulating fan (4) is installed on the second support structure (6).

4. A circulating airflow dryer according to claim 1, characterized in that, The air dryer mounting housing (9) is hinged with a left maintenance door (8) and a right maintenance door (7) on the left and right sides respectively. The left maintenance door (8) and the right maintenance door (7) facilitate the maintenance of the fan walls on the left and right sides.

5. A circulating airflow dryer according to claim 1, characterized in that, The first circulating fan (3) and the first support structure (5) form a fan wall with an integral structure, and the second circulating fan (4) and the second support structure (6) form another fan wall with an integral structure.

6. A circulating airflow dryer according to claim 3, characterized in that, The air-duct dryer mounting housing (9) is hinged with a dryer sealing door (12), which is used to ensure that airflow and heat do not leak out.

Images