Uniform distribution device and dryer

Abstract

The present invention is applicable to the field of agricultural technology, and provides a uniform distribution device and a dryer, wherein the uniform distribution device comprises: a main body, which is a hollow structure with one side open, and an air inlet channel is provided on the adjacent side of the open side; a spoiler, which is provided with a plurality of spoilers and is fixed inside the main body in an array along the air inlet direction; wherein the corresponding side of the main body open is an opposed arch angle slope structure, and the angle between the arch angle line and the surface where the air inlet channel is located is an acute angle, so that the spoiler is array-displaced in the air inlet direction inside the main body; a through hole is provided on the spoiler, and the non-connected end of the spoiler is a wave-shaped structure; the airflow enters the inside of the main body from the air inlet channel, and the airflow is uniformly guided by the action of the dislocated spoiler, and the airflow is uniformly guided layer by layer by the array-displacement of the spoiler. Advantages of the present invention: simple structure, good uniform distribution effect, and comprehensive two-dimensional uniform flow is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of agriculture, and in particular relates to a uniform distribution device and a dryer. Background Art

[0002] In the rice straw nutrient plug tray and full mechanized planting technology system, the rice blanket-pot coupled ecological seedling tray (referred to as the ecological seedling tray) is the core of the seedling system. It mainly uses crop straw as the main raw material, and adds nutritional additives and sterilization and disinfection agents necessary for rice growth. It is prepared by processing techniques such as air pressure molding and drying and shaping. Among them, drying and shaping is the key factor that determines its quality, and it is also the decisive factor that determines whether this rice planting model can be promoted and applied. Therefore, the drying quality of the ecological seedling tray occupies an important position in its production process, and how to ensure its drying quality is an urgent problem to be solved.

[0003] The existing material drying equipment has poor airflow uniformity, which easily causes uneven drying and thus affects the drying effect. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a uniform distribution device to solve the problem of uneven drying.

[0005] The present invention is implemented as follows: a uniform distribution device, the uniform distribution device comprising:

[0006] The main body is a hollow structure with one side open, and an air inlet channel is provided on the adjacent side of the open side;

[0007] A plurality of spoilers are provided and fixed inside the main body in an array along the air intake direction;

[0008] The corresponding surface of the main body is an opposed arch angle slope structure, and the angle between the arch angle line and the surface where the air inlet channel is located is an acute angle, so that the spoiler is array-type staggered in the air inlet direction inside the main body; through holes are opened on the spoiler, and the non-connected end of the spoiler is a wave-shaped structure;

[0009] The airflow enters the interior of the main body from the air inlet channel, and is evenly guided by the staggered spoiler plates. The airflow is evenly guided layer by layer by the array-type staggered spoiler plates.

[0010] In the embodiment of the present invention, the connecting elbow is connected to the gas source, and the airflow enters the interior of the main body from the air inlet channel. At this time, the distribution direction of the spoiler is the same as the direction of the airflow, so that the airflow entering from the air inlet channel passes through each spoiler. Through the effect of the dislocated spoiler, the strength of the airflow contacted by each spoiler will weaken layer by layer, and the dislocation change of the dislocation distribution corresponds to the weakened airflow, so that the airflow is evenly distributed and guided. The airflow is evenly distributed layer by layer through the array dislocation of the spoiler. The airflow is evenly distributed, avoiding the influence of the weakening of the airflow direction on the uneven distribution of the airflow, increasing the uniformity of the distribution, simplifying the structure of the device through the cooperation of the main body and the spoiler, reducing the production cost, and facilitating the gas expansion and opening through the arch angle setting of the main body to achieve the purpose of horizontal uniform distribution. The slope structure is convenient to compensate for the weakening of the airflow, thereby achieving two-dimensional flow uniformity and comprehensive flow uniformity.

[0011] Another object of the present invention is to provide a dryer, comprising:

[0012] Axial flow fan, used for driving gas;

[0013] A heater, connected to the axial flow fan, for heating the gas;

[0014] Microwave drying system, which dries the material by microwave; and,

[0015] A uniform distribution device as described above;

[0016] The open end of the main body is connected to a drying chamber, a jet panel is slidably arranged on the open surface of the main body, and the jet panel is connected to a sliding driving member; a quality detection module is arranged inside the drying chamber, and the quality detection module is electrically connected to the control module;

[0017] The drying conditions and drying thresholds are set through the control module, and the axial flow fan and heater are started to preheat the drying chamber. When the temperature reaches the set conditions, the materials are placed in the drying chamber and the microwave drying system is started for drying. At the same time, the quality detection module performs material quality detection. When the drying quality of the material is inconsistent with the drying threshold, the control module couples and controls the microwave drying system, wind speed, airflow temperature, and the distance between the jet panel and the material.

[0018] The invention has the advantages of simple structure, good uniform distribution effect and realization of comprehensive two-dimensional current distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the main structure of a uniform distribution device provided by an embodiment of the present invention;

[0020] Figure 2 A left-side structural schematic diagram of a uniform distribution device provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a top view of a uniform distribution device provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of a three-dimensional structure of a uniform distribution device provided by an embodiment of the present invention when viewed from the front;

[0023] Figure 5 A schematic structural diagram of a first spoiler of a first form in a uniform distribution device provided in an embodiment of the present invention;

[0024] Figure 6 A schematic structural diagram of a second spoiler of a first form in a uniform distribution device provided in an embodiment of the present invention;

[0025] Figure 7 A schematic structural diagram of a third spoiler of a first form in a uniform distribution device provided by an embodiment of the present invention;

[0026] Figure 8 A schematic structural diagram of a fourth spoiler of a first form in a uniform distribution device provided by an embodiment of the present invention;

[0027] Fig. 9 A schematic structural diagram of a first spoiler of a second form in a uniform distribution device provided in an embodiment of the present invention;

[0028] Fig.10 A schematic structural diagram of a second spoiler of a second form in a uniform distribution device provided in an embodiment of the present invention;

[0029] Fig.11 A schematic structural diagram of a third spoiler of a second form in a uniform distribution device provided by an embodiment of the present invention;

[0030] Fig.12 A schematic structural diagram of a fourth spoiler of a second form in a uniform distribution device provided in an embodiment of the present invention;

[0031] Fig.13 A schematic diagram of the three-dimensional structure of a dryer provided in an embodiment of the present invention;

[0032] Fig.14 A schematic diagram of the main structure of a jet panel in a dryer provided by an embodiment of the present invention;

[0033] Fig.15 A schematic diagram of a top view of a jet panel in a dryer provided by an embodiment of the present invention;

[0034] In the attached drawings: 1. electric push-pull rod, 2. uniform distribution device, 3. pre-uniform distributor, 4. jet tube, 5. drying chamber, 6. connecting pipe, 7. heater, 8. connecting elbow, 9. reducing connecting pipe, 10. axial flow fan, 11. spoiler, 12. left vertical surface of the chamber, 13. left inclined surface of the upper body, 14. right inclined surface of the upper body, 15. main body, 16. right vertical surface of the chamber, 17. vertical surface of the air inlet of the chamber, 18. air inlet channel, 19. air outlet, 20. tail wing guide concave edge, 21. guide radial edge, 22. upper guide port, 23. guide radial plate, 24. middle guide port, 25. tail wing guide convex edge, 26. support plate. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0037] like Figure 1-4 As shown, it is a structural diagram of a uniform distribution device provided by an embodiment of the present invention, including:

[0038] The main body 15 is a hollow structure with one side open, and an air inlet passage 18 is provided on the adjacent side of the open side;

[0039] The spoiler 11 is provided in plurality and fixed inside the main body 15 in an array along the air intake direction;

[0040] The open corresponding surface of the main body 15 is an opposed arch angle slope structure, and the angle between the arch angle line and the surface where the air inlet channel 18 is located is an acute angle, so that the spoiler 11 is array-type staggered in the air inlet direction inside the main body 15; the spoiler 11 is provided with a through hole, and the non-connected end of the spoiler 11 is a wave-shaped structure;

[0041] The airflow enters the interior of the main body 15 from the air inlet channel 18 and is evenly guided by the staggered spoiler plates 11. The array-type staggered spoiler plates 11 evenly guide the airflow layer by layer.

[0042] In the embodiment of the present invention, the connecting elbow 8 is connected to the gas source, and the airflow enters the interior of the main body 15 from the air inlet channel 18. At this time, the distribution direction of the spoiler 11 is the same as the direction of the airflow, so that the airflow entering from the air inlet channel 18 passes through each spoiler 11. Through the action of the dislocated spoiler 11, the strength of the airflow flow contacted by each spoiler 11 will weaken layer by layer, and the dislocation change of the dislocation distribution corresponds to the weakened airflow, so that the airflow is evenly distributed and guided. The array-type dislocation of the spoiler 11 guides the airflow layer by layer. The airflow is evenly distributed, avoiding the influence of the weakening of the airflow direction on the uneven distribution of the airflow, and increasing the uniformity of the distribution. Through the cooperation of the main body 15 and the spoiler 11, the device structure is simplified, and the manufacturing cost is reduced. Through the arch angle setting of the main body 15, it is convenient for the gas to expand and open, so as to achieve the purpose of horizontal uniform distribution. Through the setting of the slope structure, it is convenient to compensate for the weakening of the airflow, so as to achieve the uniform flow in the two-dimensional direction and the overall uniform flow.

[0043] In one embodiment of the present invention, the open surface of the main body 15 is an air outlet 19, and the airflow rushes out of the air outlet 19. The connection end of the spoiler 11 corresponds to the arch angle and slope of the main body 15, and can be an arc-shaped structure. The arc edge of the spoiler 11 is convenient for distributing the lateral airflow, and the wavy structure is convenient for guiding the airflow and allowing the airflow to pass. The spoiler 11 can be similar to a leaf or a pomfret shape, thereby increasing the smoothness of the spoiler 11. The spoiler 11 can be set vertically with the arch angle line. Due to the setting of the slope structure, the non-connecting end of the spoiler 11 is slightly upturned, which increases the gas distribution capacity, ensures that the airflow contacts the spoiler as much as possible, effectively reduces the resistance to the air, and ensures that the airflow can enter the drying chamber evenly. In the main body 15, the spoiler 11 is composed of a tail wing guide concave edge 20, a guide radial edge 21, an upper guide port 22, a guide radial plate 23, an intermediate guide port 24 and a tail wing guide convex edge 25. The tail wing concave edge 20 and the tail wing guide convex edge 25 thus form the edge of the wave-shaped structure. The distance between the spoilers 11 is 120-135mm from the left vertical surface of the cavity. Among them, the number of spoilers 11 is preferably four, (such as Figure 5-12) are respectively the first spoiler, the second spoiler, the third spoiler and the fourth spoiler, at the edge of each spoiler 11, the major radius of the rear wing guide concave edge 20 is 40-50mm, and the minor radius is 18-25mm; the major radius of the middle rear wing guide convex edge 25 is 40-50mm, and the minor radius is 20-25mm, and the major radius of the rear wing guide convex edges 25 on both sides is 30-40mm, and the minor radius is 25-30mm. The through holes on the spoiler 11 decrease layer by layer in the airflow direction. According to the need for airflow uniformity, 2-5 intermediate guide ports 24 can be distributed in the middle of the spoiler 11, wherein there are 5 intermediate guide ports 24 on the first spoiler, 4 intermediate guide ports 24 on the second spoiler, 3 intermediate guide ports 24 on the third spoiler, and 2 intermediate guide ports 24 on the fourth spoiler. The number of upper guide ports 22 may not change, and the diameter of the upper guide port 22 is 25-35 mm. The diameter of the upper guide port 22 is 25-35 mm. The spoiler 11 is made of a white steel plate with a thickness of 2 mm. The microwave drying system can be installed inside the drying cavity 5 to dry the material.

[0044] As a preferred embodiment of the present invention, the angle between the arch angle line and the surface where the air inlet channel 18 is located is β and is 50-80°, and the angle between the two guide radial edges 21 is equal to the inclination angle β of the left and right inclined surfaces of the upper body. The main body 15 is the main channel for the airflow to enter the drying chamber, and is mainly composed of the left inclined surface 13 of the upper body, the right inclined surface 14 of the upper body, the left vertical surface 12 of the cavity, the right vertical surface 16 of the cavity, the vertical surface 17 of the cavity air inlet, the air inlet 18 and the air outlet 19. The main structural parameters of the airflow distributor main body 15 include the diameter of the air inlet, the size A×L of the effective air outlet, the angle α of the left and right inclined surfaces of the upper body, the inclination angle β of the left and right inclined surfaces of the upper body, the maximum height B of the air inlet vertical surface and the height of the left and right vertical surfaces of the cavity. The size of the parameters is mainly determined by the overall size and performance of the dryer. The specific range of values ​​is: the diameter of the air inlet is 890-150mm, the size of the effective air outlet A×L is (600-650)×(400-500)mm, the angle α of the left and right inclined surfaces of the upper body is (100-120)°, the inclination angle β of the left and right inclined surfaces of the upper body is (50-80)°, the maximum height B of the air inlet vertical surface is (250-300)mm, and the height of the left and right vertical surfaces of the cavity is 150-250mm. In the middle of the left and right vertical surfaces 12 and 16 of the cavity, a rectangular opening with a length of 100-150mm and a width of 4-10mm is processed as a track for the jet panel to move up and down. The main body 15 of the air flow distributor is made of white steel with a thickness of 2mm.

[0045] like Fig.13 As shown, an embodiment of the present invention also provides a dryer, comprising:

[0046] An axial flow fan 10, used for driving the gas;

[0047] The heater 7 is connected to the axial flow fan 10 and is used for heating the gas;

[0048] Microwave drying system, which dries the material by microwave; and,

[0049] A uniform distribution device as described above;

[0050] The open end of the main body 15 is connected to the drying chamber 5, and a jet panel is slidably arranged on the open surface of the main body 15, and the jet panel is connected to the sliding driving member 1; a quality detection module is arranged inside the drying chamber 5, and the quality detection module is electrically connected to the control module;

[0051] The drying conditions and drying thresholds are set by the control module, and the axial flow fan 10 and the heater 7 are started to preheat the drying chamber 5. When the temperature reaches the set conditions, the material is placed in the drying chamber 5, and the microwave drying system is started for drying. At the same time, the quality detection module performs material quality detection. When the drying quality of the material is inconsistent with the drying threshold, the control module performs coupling control on the microwave drying system, the wind speed of the axial flow fan 10, the heating temperature of the heater 7, and the sliding drive 1 to adjust the distance between the jet panel and the material, so as to realize the regulation of the drying process of the dryer, and then realize the adjustment of the drying quality.

[0052] In the embodiment of the present invention, the axial flow fan 10 is connected to the heater 7 through the connecting elbow 8, and the heater 7 is connected to the main body 15 through the connecting pipe 6. The connection point can be connected through a flange. The heater 7 is composed of an electric heating rod, an outer shell and a wire. The electric heating rod is installed inside the outer shell. The electric heating rod selects a carbon fiber far-infrared quartz electric heating tube as a heating source. The carbon fiber far-infrared quartz electric heating tube has high thermal efficiency and stable electrical performance. When it is frequently started and works continuously for a long time, the thermal power is very stable. Five carbon fiber far-infrared quartz electric heating tubes are selected as the heating source. The angle between the five carbon fiber far-infrared quartz electric heating tubes is 72°, of which two are spare and three are commonly used; the diameter of the outer shell is 250-400mm, the length is 400-500mm, and it is made of a white steel pipe with a wall thickness of 2mm.

[0053] As a preferred embodiment of the present invention, the air flow front end of the uniform distribution device is connected to a pre-uniform distributor 3. In order to ensure that the airflow entering the uniform distribution device 2 has a constant pressure, and then ensure that the jet airflow entering the drying chamber 5 is evenly distributed, a pre-uniform distributor 3 is connected between the connecting pipe 6 and the uniform distribution device 2. The pre-uniform distributor 3 is cylindrical and made of 2mm white steel. The structural dimensions are: the diameter of the circle is 200-300mm, and the height of the cylinder is 200-300mm. The specific dimensions are determined by the overall dimensions of the dryer and actual production needs.

[0054] As a preferred embodiment of the present invention, a reducing connecting pipe 9 is provided in the airflow direction of the axial flow fan 10, and the airflow is collected by the reducing connecting pipe 9, thereby increasing the ability of the axial flow fan 10 to drive wind.

[0055] like Fig.14 , 15 As shown, as a preferred embodiment of the present invention, the jet panel includes a jet tube 4 and a support plate 26. The jet panel is connected to the uniform distribution device 2 through a sliding drive 1. The jet tube 4 on the jet panel directly passes into the drying chamber 5 through a hole on the drying chamber 5. The jet panel can move in the main body 15 driven by the sliding drive 1. The sliding drive 1 can be an electric push-pull rod 1, a hydraulic rod, a pneumatic rod, etc., to change the distance between the jet tube 4 in the drying chamber 5 and the drying material, thereby ensuring the drying quality of the drying material. The support plate 26 is made of hard plastic by hot pressing, and the jet tube 4 is made of silicone by molding. The structural parameters of the support plate 26 are: length × width × height are (590-640) × (390-490) (E) × 10mm; the structural parameters of the jet tube 4 are: diameter D is 10-30mm, height is 100-150mm, wall thickness is 4mm, and spacing F is 20-23mm.

[0056] As a preferred embodiment of the present invention, the quality detection module includes a temperature sensor and a wind speed sensor, which are installed on the drying chamber 5 and are electrically connected to the control module respectively, so as to achieve the function of automatic control.

[0057] As a preferred embodiment of the present invention, the control module includes: a frequency converter, a temperature display controller, a wind speed display controller, a microwave power regulator, a microwave power display controller, etc., thereby realizing the control of frequency conversion, temperature, wind speed, and microwave regulation.

[0058] As a preferred embodiment of the present invention, the detection auxiliary module is based on the infrared thermal imager for detection, installed on the drying chamber 5, and is mainly used to detect the temperature of the dried material and the change of the drying quality. The control module realizes the regulation of the inverter, microwave power regulator, heater and electric push-pull rod, thereby changing the microwave power, the wind speed of the jet, the temperature of the heater and the height between the jet tube and the material, realizing the regulation of the drying process of the dryer, and then realizing the adjustment of the drying quality.

[0059] As a preferred embodiment of the present invention, the auxiliary detection module, the quality detection module and the control module, the processed data are fed back to the control module via the wireless transmission system to control the operation of each execution working component; the 5G-based wireless transmission system can also transmit the processed data detected by the infrared thermal imager's detection system and each sensor to the mobile phone for remote monitoring.

[0060] In the above embodiment of the present invention, a uniform distribution device is provided, and a dryer is provided based on the uniform distribution device, and the airflow is uniformly distributed and guided layer by layer through the array dislocation of the spoiler 11. The airflow is evenly distributed, avoiding the influence of the weakening of the airflow direction on the uneven distribution of the airflow, increasing the uniformity of the distribution, and simplifying the device structure through the cooperation of the main body 15 and the spoiler 11, reducing the production and manufacturing cost, and facilitating the gas expansion and opening through the arch angle setting of the main body 15, so as to achieve the purpose of horizontal uniform distribution, and facilitating the compensation of the weakening of the airflow through the setting of the slope structure, thereby achieving the uniform flow in the two-dimensional direction and achieving the comprehensive uniform flow. When the drying quality of the material is inconsistent with the drying threshold, the control module couples and controls the microwave drying system, the wind speed of the axial flow fan 10, the heating temperature of the heater 7, and the distance between the jet panel and the material through the sliding drive 1, so as to realize the regulation of the drying process of the dryer, and then realize the regulation of the drying quality. Automated drying and quality detection are realized.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A uniform distribution device, characterized in that: The uniform distribution device comprises: The main body is a hollow structure with one side open, and an air inlet channel is provided on the adjacent side of the open side; A plurality of spoilers are provided and fixed inside the main body in an array along the air intake direction; The corresponding surface of the main body is an opposed arch angle slope structure, and the angle between the arch angle line and the surface where the air inlet channel is located is an acute angle, so that the spoiler is array-type staggered in the air inlet direction inside the main body; through holes are opened on the spoiler, and the non-connected end of the spoiler is a wave-shaped structure; The airflow enters the interior of the main body from the air inlet channel, and is evenly distributed and guided by the staggered spoiler. The array-type staggered spoiler evenly distributes and guides the airflow layer by layer. The through holes on the spoiler decrease layer by layer in the airflow direction; The main body includes a left inclined surface of the upper body, a right inclined surface of the upper body, a left vertical surface of the cavity, a right vertical surface of the cavity, a vertical surface of the cavity air inlet, an air inlet and an air outlet. The spoiler is arranged perpendicular to the arch angle line. The spoiler is composed of a tail wing guide concave edge, a guide radial edge, an upper guide port, a guide radial plate, a middle guide port and a tail wing guide convex edge. The tail wing guide concave edge and the tail wing guide convex edge constitute the edge of a wave-shaped structure. The angle between the arch angle line and the surface where the air inlet channel is located is 50-80°, and the angle between the two guide radial edges is equal to the inclination angle of the left inclined surface of the upper body and the right inclined surface of the upper body.

2. A dryer, characterized in that: The dryer comprises: Axial flow fan, used for driving gas; A heater, connected to the axial flow fan, for heating the gas; Microwave drying system, which dries the material by microwave; and, A uniform distribution device as claimed in claim 1; The open end of the main body is connected to a drying chamber, a jet panel is slidably arranged on the open surface of the main body, and the jet panel is connected to a sliding driving member; a quality detection module is arranged inside the drying chamber, and the quality detection module is electrically connected to a control module; The drying conditions and drying thresholds are set through the control module, and the axial flow fan and heater are started to preheat the drying chamber. When the temperature reaches the set conditions, the materials are placed in the drying chamber and the microwave drying system is started for drying. At the same time, the quality detection module performs material quality detection. When the drying quality of the material is inconsistent with the drying threshold, the control module couples and controls the microwave drying system, wind speed, airflow temperature, and the distance between the jet panel and the material.

3. A dryer according to claim 2, characterized in that: The heater comprises an electric heating rod and an outer shell, wherein the electric heating rod is installed inside the outer shell; the electric heating rod is a carbon fiber far-infrared quartz electric heating tube and is used as a spare electric heating rod or a common electric heating rod.

4. A dryer according to claim 2, characterized in that: The air flow front end of the uniform distribution device is connected to a pre-uniform distributor for distributing and buffering the jet airflow entering the drying chamber.

5. A dryer according to claim 2, characterized in that: The airflow direction of the axial flow fan is connected with a reducing connecting pipe.

6. A dryer according to claim 2, characterized in that: The jet panel includes jet tubes and a support plate. The jet panel is connected to the uniform distribution device through a sliding drive. The jet tubes are arranged in an array on the support plate. The jet tubes are directly connected to the drying chamber through holes on the drying chamber.

7. A drying machine according to claim 2, characterized in that: The quality detection module includes a temperature sensor and a wind speed sensor, which are installed on the drying chamber and are electrically connected to the control module respectively; the control module includes: a frequency converter, a temperature display controller, a wind speed display controller, a microwave power regulator, and a microwave power display controller.

8. A drying machine according to claim 2, characterized in that: The dryer also includes a detection auxiliary module, which performs detection based on an infrared thermal imager and is used to detect the temperature of the dried material and the change in the drying quality.

Images