A grain dryer with online moisture detection function

Abstract

The utility model discloses a grain dryer with an online moisture detection function, and relates to the technical field of grain dryers, including a drying box, wherein the upper end of the drying box is movably connected to a box cover, the upper end of the box cover is fixedly connected to a fixed frame, and the interior of the fixed frame is fixedly connected to a hot air blower. The utility model adopts the above structure, and the grain enters the drying box and stays on the screen of the movable plate, and the screen is moved by a push plate assembly, and the screen vibrates under the action of two vibration plate assemblies, so that the grain vibrates on the screen. Since the grain tumbles and can fully contact the heat in the air, it is easier for hot air to enter the grain, and promote the drying of the grain. At the same time, during the vibration process, the grain squeezes each other to make the lower layer of grain slowly fall through the screen, and larger impurities stay on the screen to prevent them from passing through the screen with the grain, so that the grain drying operation and the removal of large impurities can be carried out at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain dryers, and in particular relates to a grain dryer with an online moisture detection function. Background Art

[0002] Grain dryer is a device that can make rice reach a dryness suitable for storage and processing. It uses a fan to pass hot air through the grain pile to evaporate the moisture on the surface and inside of the grain, and then discharges the wet air containing moisture, thereby achieving rapid drying of the grain. Grain dryer has high working efficiency and can greatly shorten the grain drying time, improving the quality of the grain and its market competitiveness.

[0003] For example, a Chinese patent with publication number CN216448572U discloses an online moisture detection grain dryer with a preheating and lifting function, comprising a grain dryer body, a feed hopper fixedly mounted on the upper wall of the grain dryer body, a discharge hopper fixedly mounted on the lower wall of the grain dryer body, and an adjusting discharge device fixedly mounted on the lower end of the discharge hopper.

[0004] There are some problems in the use of the above-mentioned dryer. Although it can effectively dry and remove moisture from the grain, the grain may contain large impurities, which will seriously reduce the quality of the grain. The subsequent impurity removal steps are rather cumbersome, so improvements need to be made to the above problems. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a grain dryer with an online moisture detection function to solve the problem that the grain may contain large impurities, which will seriously reduce the quality of the grain and make the subsequent impurity removal steps cumbersome.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A grain dryer with an online moisture detection function comprises a drying box, wherein the upper end of the drying box is movably connected with a box cover, the upper end of the box cover is fixedly connected with a fixing frame, a hot air blower is fixedly connected inside the fixing frame, one end of the box cover is fixedly connected with a feeding pipe, one side of the feeding pipe is fixedly connected with a first moisture sensor, both sides of the drying box are fixedly connected with a vibration plate assembly, the upper side of the vibration plate assembly is fixedly connected with a moving plate, the inner side of the moving plate is fixedly connected with a screen, the lower end of the screen is fixedly connected with a push plate assembly, the bottom end of the drying box is fixedly connected with a feeding pipe, one side of the feeding pipe is fixedly connected with a switch valve, and the other side of the feeding pipe is fixedly connected with a second moisture sensor. Through the above arrangement, hot air can more easily enter the interior of the grain to promote the drying of the grain, while larger impurities stay on the screen, so that the grain drying operation and the removal of large impurities can be carried out simultaneously.

[0008] As an optimal technical solution, the upper end of the movable plate is located outside the screen and is fixedly connected to a protective plate, and the cavity of the protective plate and the cavity of the drying box are fixedly connected to electric heating plates to facilitate grain drying.

[0009] As an optimal technical scheme, the push plate assembly includes a transmission frame, the transmission frame is fixedly connected to the middle part of the lower end of the screen, a pulley is installed at the lower side of the transmission frame, and a push frame plate is movably connected to the bottom of the pulley, an inner side of the drying box is fixedly connected to the motor, the output end of the motor is fixedly connected to the rotating shaft, one end of the rotating shaft is fixedly connected to one end of the push frame plate, and the vibration plate assembly includes a fixed block, the fixed block is fixedly connected to the inner walls of both sides of the drying box, a spring is fixedly connected between the fixed block and the movable plate, and guide rods are fixedly connected to both sides of the lower end of the movable plate, a guide hole is opened in the fixed block, and one side of the guide rod is slidably connected to the guide hole. The screen can be vibrated by using the push plate assembly and the vibration plate assembly, so that the grain can vibrate on the screen, and the grain can be efficiently dried and large impurities can be removed.

[0010] As an optimal technical solution, both sides of the upper end of the drying box are fixedly connected with plug rods, and the lower end of the box cover is provided with plug holes twice, the plug rods are plugged into the plug holes, and both sides of the box cover are fixedly connected with side frames, one side of the side frame is threadedly connected with a torsion rod, one end of the torsion rod is fixedly connected with a pressure pad, one side of the pressure pad is movably connected to the outer wall of the drying box, and the box cover can be opened to facilitate dust removal on the screen.

[0011] As an optimal technical solution, a vacuum cleaner is fixedly connected to one side of the drying box, a vacuum hose is fixedly connected to the output end of the vacuum cleaner, a pipe holder is fixedly connected to one side of the drying box, and one side of the vacuum hose is movably connected to the pipe holder to facilitate the removal of large impurities remaining on the screen.

[0012] In summary, the utility model mainly has the following beneficial effects:

[0013] First, in the utility model, the grain enters the drying box and stays on the screen of the movable plate. The push plate assembly is used to move the screen. The screen is vibrated under the action of two vibration plate assemblies, so that the grain vibrates on the screen. Since the grain tumbles, it can fully contact the heat in the air, making it easier for hot air to enter the grain, promoting the drying of the grain. At the same time, during the vibration process, the grains squeeze each other, so that the lower layer of grain can slowly fall through the screen, and larger impurities stay on the screen to prevent them from passing through the screen with the grain, so that the grain drying operation and the removal of large impurities can be carried out at the same time;

[0014] Third, in the present invention, by installing a first moisture sensor in the feed pipe and a second moisture sensor in the discharge pipe, the moisture content in the grain can be monitored, and the two are compared numerically, so that the drying effect of the grain can be clearly known. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the drying box of the utility model;

[0017] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0018] Figure 4 This is a schematic diagram of the box cover structure of the utility model;

[0019] Figure 5 This utility model Figure 4 Schematic diagram of the enlarged structure at B.

[0020] Figure numerals: 1, drying box; 2, box cover; 3, fixed frame; 4, hot air blower; 5, feed pipe; 6, first moisture sensor; 7, discharge pipe; 71, switch valve; 8, second moisture sensor; 9, movable plate; 10, screen; 11, push plate assembly; 111, transmission frame; 112, pulley; 113, push frame plate; 114, rotating shaft; 115, motor; 12, vibration plate assembly; 121, fixed block; 122, spring; 123, guide rod; 124, guide hole; 13, protective plate; 14, electric heating plate; 15, plug rod; 16, plug hole; 17, side frame; 18, torsion bar; 19, clamping pad; 20, vacuum cleaner; 21, vacuum hose; 22, pipe holder. DETAILED DESCRIPTION

[0021] Example

[0022] refer to Figures 1 to 5 A grain dryer with an online moisture detection function described in this embodiment includes a drying box 1. A general control system is also installed on the drying box 1 for controlling various electrical components. A box cover 2 is movably connected to the upper end of the drying box 1. A fixed frame 3 is fixedly connected to the upper end of the box cover 2. A hot air blower 4 is fixedly connected to the interior of the fixed frame 3. A feed pipe 5 is fixedly connected to one end of the box cover 2. A first moisture sensor 6 is fixedly connected to one side of the feed pipe 5. A vibration plate assembly 12 is fixedly connected to both sides of the interior of the drying box 1. A movable plate 9 is fixedly connected to the upper side of the vibration plate assembly 12. A screen 10 is fixedly connected to the inner side of the movable plate 9. The aperture of the screen 10 is neither too large nor too small to prevent the aperture from being too small so that grain cannot pass through, and to prevent the aperture from being too large so that grain can pass through too much. The drying effect is quickly affected. The lower end of the screen 10 is fixedly connected with a push plate assembly 11, the bottom end of the drying box 1 is fixedly connected with a feed pipe 7, one side of the feed pipe 7 is fixedly connected with a switch valve 71, and the other side of the feed pipe 7 is fixedly connected with a second moisture sensor 8. The first moisture sensor 6 and the second moisture sensor 8 are prior art products that can sense the moisture content of grain. Since the referenced documents have been resolved, they will not be described in detail here. The push plate assembly 11 is used to make the screen 10 active, and the screen 10 vibrates under the action of two vibration plate assemblies 12, so that the grain vibrates on the screen 10, which not only promotes the drying of the grain, but also makes larger impurities stay on the screen 10, so that the grain drying operation and the removal of large impurities can be carried out at the same time.

[0023] refer to Figure 2 The upper end of the movable plate 9 is located on the outside of the screen 10 and is fixedly connected to a protective plate 13. The cavity of the protective plate 13 and the cavity of the drying box 1 are fixedly connected to an electric heating plate 14. By fixing the protective plate 13 on the screen 10, it is convenient to concentrate the grain and make it vibrate in the middle of the screen 10. The electric heating plate 14 is installed in the drying box 1 and the protective plate 13, which can improve the drying efficiency of the grain.

[0024] refer to Figure 2-3The push plate assembly 11 includes a transmission frame 111, which is fixedly connected to the middle part of the lower end of the screen 10, a pulley 112 is installed on the lower side of the transmission frame 111, and a push frame plate 113 is movably connected to the bottom of the pulley 112. A motor 115 is fixedly connected to one side of the interior of the drying box 1, and a rotating shaft 114 is fixedly connected to the output end of the motor 115. One end of the rotating shaft 114 is fixedly connected to one end of the push frame plate 113. The vibration plate assembly 12 includes a fixed block 121, which is fixedly connected to the inner walls of both sides of the drying box 1, and a spring 122 is fixedly connected between the fixed block 121 and the movable plate 9. Guide rods 123 are fixedly connected to both sides of the lower end of the movable plate 9, and a guide hole 124 is opened inside the fixed block 121, and one side of the guide rod 123 is slidably connected to the guide hole 124; by installing the transmission frame 1 at the bottom of the screen 10 11. A motor 115 is installed in the drying box 1. The motor 115 is connected to the push frame plate 113 through the rotating shaft 114. The motor 115 makes the push frame plate 113 rotate to push the transmission frame 111, so that the transmission frame 111 drives the screen 10 to move. A pulley 112 is installed at the bottom of the transmission frame 111 to reduce friction resistance, so that the push frame plate 113 can push the transmission frame 111. By installing fixed blocks 121 on the inner walls of both sides of the drying box 1, a spring 122 is fixedly connected between the fixed block 121 and the movable plate 9, so that the movable plate 9 can vibrate in the drying box 1, so that the screen 10 drives the grain to vibrate, and the guide rod 123 slides on the fixed block 121. The screen 10 can vibrate stably, which provides protection for grain drying and impurity removal. The vibration also helps to prevent the grain from agglomerating or sticking together during the drying process, thereby achieving a better drying effect.

[0025] refer to Figure 2 , Figure 4 , Figure 5 , both sides of the upper end of the drying box 1 are fixedly connected with plug rods 15, and the lower end of the box cover 2 is provided with sockets 16 twice, and the plug rods 15 are plugged into the sockets 16, and both sides of the box cover 2 are fixedly connected with side frames 17, and one side of the side frame 17 is threadedly connected with a torsion bar 18, and one end of the torsion bar 18 is fixedly connected with a pressing pad 19, and one side of the pressing pad 19 is movably connected to the outer wall of the drying box 1; by fixing the plug rod 15 on the drying box 1 and providing a socket 16 connected with the plug rod 15 under the box cover 2, the box cover 2 is better connected to the drying box 1, and then the torsion bar 18 on the side frame 17 of the box cover 2 is rotated, and the torsion bar 18 drives the pressing pad 19 to move and contact with the outer surface of the drying box 1, so that the box cover 2 can be fixed on the drying box 1. Since the box cover 2 can be removed, the large impurities staying on the screen 10 can be cleaned.

[0026] refer to Figure 1A vacuum cleaner 20 is fixedly connected to one side of the drying box 1, a vacuum hose 21 is fixedly connected to the output end of the vacuum cleaner 20, a pipe holder 22 is fixedly connected to one side of the drying box 1, and one side of the vacuum hose 21 is movably connected to the pipe holder 22; by installing the vacuum cleaner 20 on the drying box 1, the vacuum cleaner 20 connected to the vacuum hose 21 can be extended into the drying box 1 to adsorb and transfer large impurities left by grain screening, and a pipe holder 22 is provided to fix the vacuum hose 21.

[0027] Principle and advantages of use: Grain enters the drying box 1 through the feed pipe 5, the first moisture sensor 6 on the feed pipe 5 records data, and the grain falls from the protective plate 13 onto the screen 10 of the movable plate 9. The motor 115 drives the rotating shaft 114 to rotate, and the rotating shaft 114 rotates the push frame 113. The push frame 113 can intermittently push the pulley 112 to move the transmission frame 111, so that the screen 10 vibrates. Since the grain tumbles, it can fully contact the heat in the air, making it easier for hot air to enter the grain, promoting the drying of the grain. At the same time, during the vibration process, the grain squeezes each other to make the lower layer of grain slowly fall through the screen 10, and the larger impurities stay on the screen 10 to prevent them from passing through the screen 10 with the grain, so that the grain drying operation and the removal of large impurities can be carried out at the same time. The dried grain can be discharged through the discharge pipe, and then the data is recorded by the second moisture sensor 8 on the discharge pipe. The values ​​before entering and after going out are transmitted to the general control system for comparison, so the drying effect of the grain can be clearly known.

Claims

1. A grain dryer with an online moisture detection function, comprising a drying box (1), characterized in that: The upper end of the drying box (1) is movably connected to a box cover (2), the upper end of the box cover (2) is fixedly connected to a fixing frame (3), the interior of the fixing frame (3) is fixedly connected to a hot air blower (4), one end of the box cover (2) is fixedly connected to a feed pipe (5), one side of the feed pipe (5) is fixedly connected to a first moisture sensor (6), both sides of the interior of the drying box (1) are fixedly connected to a vibration plate assembly (12), the upper side of the vibration plate assembly (12) is fixedly connected to a moving plate (9), the inner side of the moving plate (9) is fixedly connected to a screen (10), the lower end of the screen (10) is fixedly connected to a push plate assembly (11), the bottom end of the drying box (1) is fixedly connected to a feed pipe (7), one side of the feed pipe (7) is fixedly connected to a switch valve (71), and the other side of the feed pipe (7) is fixedly connected to a second moisture sensor (8).

2. A grain dryer with online moisture detection function according to claim 1, characterized in that: The upper end of the movable plate (9) is located outside the screen (10) and is fixedly connected to a protective plate (13), and the cavity of the protective plate (13) and the cavity of the drying box (1) are both fixedly connected to an electric heating plate (14).

3. The grain dryer with online moisture detection function according to claim 1, characterized in that: The push plate assembly (11) comprises a transmission frame (111), the transmission frame (111) is fixedly connected to the middle part of the lower end of the screen (10), a pulley (112) is installed on the lower side of the transmission frame (111), and a push frame plate (113) is movably connected to the bottom of the pulley (112).

4. The grain dryer with online moisture detection function according to claim 3, characterized in that: A motor (115) is fixedly connected to one side of the interior of the drying box (1), an output end of the motor (115) is fixedly connected to a rotating shaft (114), and one end of the rotating shaft (114) is fixedly connected to one end of a push frame plate (113).

5. The grain dryer with online moisture detection function according to claim 1, characterized in that: The vibration plate assembly (12) comprises a fixed block (121), the fixed block (121) is fixedly connected to the inner walls on both sides of the drying box (1), a spring (122) is fixedly connected between the fixed block (121) and the movable plate (9), both sides of the lower end of the movable plate (9) are fixedly connected to guide rods (123), a guide hole (124) is provided inside the fixed block (121), and one side of the guide rod (123) is slidably connected to the guide hole (124).

6. The grain dryer with online moisture detection function according to claim 1, characterized in that: Both sides of the upper end of the drying box (1) are fixedly connected with plug rods (15), and the lower end of the box cover (2) is provided with plug holes (16) at two times. The plug rods (15) are plugged into the plug holes (16). Both sides of the box cover (2) are fixedly connected with side frames (17), and one side of the side frame (17) is threadedly connected with a torsion rod (18), and one end of the torsion rod (18) is fixedly connected with a pressure pad (19), and one side of the pressure pad (19) is movably connected to the outer wall of the drying box (1).

7. The grain dryer with online moisture detection function according to claim 1, characterized in that: A vacuum cleaner (20) is fixedly connected to one side of the drying box (1), a vacuum hose (21) is fixedly connected to the output end of the vacuum cleaner (20), a pipe holder (22) is fixedly connected to one side of the drying box (1), and one side of the vacuum hose (21) is movably connected to the pipe holder (22).

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