A mobile grain moisture control device

Abstract

The utility model discloses a mobile grain humidity control device in the grain storage technical field, including the box type main part of bottom is equipped with walking mechanism, the box type main part top is equipped with the air outlet, one side is equipped with the air inlet, is equipped with the wet film body, the air supply unit and water supply unit in the inside, the air supply unit is through the return air pipe who links with the air vent of granary bottom and inhales the air in the granary into the box type main part, and after the wet film body, from the air supply pipe of the window of granary top sends into the granary, during using the water supply unit to supplement the wet film body water. The utility model discloses a movable box type main part with humidifying function is arranged, the air in the granary is sucked from the air vent of the warehouse bottom when using, and after humidifying in the box type main part, the air is sent back to the granary from the window again, and the humidity is added in the internal circulation mode, and the temperature influence to the grain in the warehouse is little, is favorable to the safe grain storage, can also shift the equipment according to the need flexibly, thereby improves the use ratio of equipment.

Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, and in particular to a mobile grain humidity control device. Background Technology

[0002] During grain storage, to ensure stable grain conditions and storage safety, storage techniques such as mechanical ventilation, air conditioning temperature control, or grain cooling are required. These techniques often lead to moisture loss in the grain. After a storage period, the weight loss upon release from storage can reach 1% or even more than 2%, causing significant economic losses for grain storage enterprises and affecting processing and edible quality. Therefore, appropriate humidity control of grain piles is necessary during grain storage. Traditional humidity control methods in grain warehouses often rely on simple humidity control equipment, which often lacks differentiation based on grain variety and condition. Furthermore, existing humidity control devices are typically inefficient, unable to monitor and adjust the humidity environment in real time, leading to significant safety risks during grain storage. Utility Model Content

[0003] To overcome the aforementioned shortcomings of existing grain storage humidity control devices, the technical problem to be solved by this utility model is to provide a mobile grain humidity control device that does not require modification of the original structure of the grain warehouse and can be used flexibly.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A mobile grain humidity control device includes a box-shaped main body. The bottom of the box-shaped main body is provided with a walking mechanism, the top is provided with an air outlet that can be connected to an air supply pipe, and the side is provided with an air inlet that can be connected to a return air pipe. The box-shaped main body is provided with a wet film body, an air supply unit, and a water supply unit. The air supply unit draws air from the grain silo into the box-shaped main body through a return air pipe connected to a vent at the bottom of the grain silo, and after passing through the wet film body, it is delivered into the grain silo through an air supply pipe extending into the top window of the grain silo. The water supply unit replenishes water to the wet film body.

[0005] Furthermore, the walking mechanism consists of rollers located at the bottom of the box-shaped main body.

[0006] Furthermore, the box-shaped main body is equipped with a ladder on the side, a fence around the top, a door on one side, and an air inlet on each of the other three sides.

[0007] Furthermore, the wet film body comprises three, each corresponding to one of the three air inlets. The three wet film bodies, together with the upper and lower surfaces of the box-shaped main body and the three sides where the air inlets are located, form an air inlet cavity.

[0008] Furthermore, the air supply unit is an axial flow fan installed in the air outlet.

[0009] Furthermore, the water supply unit includes a water tank located at the bottom of the box-shaped main body and a water pump located inside the water tank. The water pump supplies water to the top of the wet membrane body through water pipes, and excess water flows back into the water tank from below the wet membrane body.

[0010] Furthermore, the water supply unit also includes a filter box installed on the inner wall of the box-shaped main body. The filter box contains a filter, and the water inlet of the filter is connected to the water inlet on the side wall of the box-shaped main body through a water inlet pipe. A solenoid valve and a water flow sensor are installed on the water inlet pipe, and the water outlet of the filter is connected to the water tank through a water outlet pipe.

[0011] Furthermore, the top of the water tank is equipped with an overflow pipe. When the water level in the tank exceeds the overflow pipe, the excess water flows out from the drain outlet on the side of the tank body along the overflow pipe. The bottom of the water tank is equipped with a drain hole and a valve at the drain hole.

[0012] Furthermore, the water tank is equipped with an ultrasonic atomizer.

[0013] Furthermore, the main body of the box is also equipped with a control box, which contains a controller. The controller controls the operation of the air supply unit, water supply unit and ultrasonic atomizer according to the set requirements.

[0014] The beneficial effects of this invention are as follows: By setting up a movable box-shaped main body, and installing a wet film body for humidifying the air, as well as an air supply unit and a water supply unit inside the box-shaped main body, the air supply unit draws air from the grain silo into the box-shaped main body, humidifies it through the wet film body, and then sends it back to the grain silo, thus achieving the purpose of humidifying the air inside the grain silo. The entire device is located outside the grain silo and is movable, so it does not affect the grain loading and unloading operations. The equipment can also be flexibly moved as needed, thereby improving the utilization rate of the equipment, and making inspection and maintenance more convenient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the front view of this utility model; Figure 3 This is a side view of the present invention; Figure 4 This is a top view of the present invention; Figure 5 yes Figure 2 AA section view in the middle; Figure 6 yes Figure 2 BB section view in the middle; Figure 7This is a schematic diagram of the present invention in use.

[0016] The diagram is labeled as follows: 1-Box-type main body, 2-Air supply duct, 3-Return air duct, 4-Wet film body, 5-Grain bin, 6-Axial flow fan, 7-Water tank, 8-Filter, 9-Overflow pipe, 11-Air outlet, 12-Air inlet, 13-Roller, 14-Ladder, 15-Fence, 16-Box door, 17-Air inlet cavity, 18-Filter box, 19-Control box, 51-Ventilation opening, 52-Window, 71-Water pump, 72-Ultrasonic atomizer, 73-Drain hole, 81-Water inlet pipe, 82-Water inlet, 83-Solenoid valve, 84-Water flow sensor, 85-Water outlet pipe, 91-Drain outlet. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] It should be noted that if this utility model contains directional indicators such as up, down, left, right, front, and back, these terms are used to describe the relative positional relationships between components and are not specific references to the absolute positions of the components or the relationships between them. They are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly. If this utility model contains terms related to quantity such as "many," "multiple," or "several," these terms specifically refer to two or more.

[0019] like Figure 1-5 As shown, the present invention provides a mobile grain humidity control device, comprising a box-shaped main body 1. The box-shaped main body 1 has a walking mechanism at its bottom, an air outlet 11 at its top that can connect to an air supply pipe 2, and an air inlet 12 on its side that can connect to a return air pipe 3. The box-shaped main body 1 contains a wet film body 4, an air supply unit, and a water supply unit. The air supply unit draws air from the grain silo 5 into the box-shaped main body 1 through a return air pipe 3 connected to a ventilation opening 51 at the bottom of the grain silo 5. The air then passes through the wet film body 4 and is delivered into the grain silo 5 through the air supply pipe 2 extending into the window 52 at the top of the grain silo 5. The water supply unit replenishes water to the wet film body 4. The box-shaped main body 1 is a completely sealed structure and can be constructed using a steel frame and steel plates to ensure the overall structural strength. The traveling mechanism can use an electric steering wheel or tracks. To save costs, rollers 13 can be used. Rollers 13 are preferably universal wheels with locking functions and are connected to the box-type main body 1 through a vibration-damping structure, ensuring smooth movement and allowing for locking during use to prevent equipment movement. The wet film body 4 is an existing structure made of plant fibers, glass fibers, polyester fibers, or polymer materials, possessing good water absorption, breathability, and durability. It increases the humidity of the air passing through the wet film body 4 through water evaporation, thereby increasing the air humidity inside the grain silo.

[0020] When this utility model is in use, Figure 7 As shown, the equipment is first moved to the vicinity of the ventilation opening 51 of the grain silo 5. Then, the ventilation opening 51 is connected to the air inlet 12 using the return air duct 3, and the lower end of the air supply duct 2 is connected to the air outlet 11. The upper end of the air supply duct 2 extends into the grain silo 5 from the window 52 above the grain silo 5. Both the return air duct 3 and the air supply duct 2 are reinforced corrugated pipes to ensure smooth ventilation. Afterward, the equipment is started. The water supply unit wets the wet membrane body 4, and the air supply unit uses the return air duct 3 to draw dry air from the grain silo 5 into the box-shaped main body 1. After passing through the wet membrane body 4, the gas is sent into the grain surface space of the grain silo 5 through the air supply duct 2, and then, driven by the air supply unit, penetrates downward through the grain, returning to the box-shaped main body 1 through the ventilation opening 51 and the return air duct 3, thus achieving the purpose of humidifying the air inside the grain silo. The entire cyclic humidification process does not involve outside air, which can slow down the rate of grain temperature rise and ensure grain storage safety. In addition, the entire device is located outside the grain silo 5 and is movable, allowing for flexible relocation of the equipment as needed, thereby improving the utilization rate of the equipment and making inspection and maintenance more convenient.

[0021] Considering humidification efficiency, the entire device is relatively large. To facilitate the installation of the air supply duct 2, a ladder 14 is provided on the side of the main box body 1, and a railing 15 is provided around the top to ensure the safety of workers installing the air supply duct 2. For maintenance and repair of the internal equipment, a door 16 is provided on one side of the main box body 1, and an air inlet 12 is provided on each of the other three sides, which can be connected to three ventilation openings 51, greatly improving ventilation and humidification efficiency.

[0022] To accommodate the three air inlets 12, the wet film body 4 also includes three, such as... Figure 5 As shown, three wet film bodies 4 are respectively set for three air inlets 12. The three wet film bodies 4, together with the upper and lower surfaces of the box-shaped main body 1 and the three sides where the air inlets 12 are located, form an air inlet cavity 17. This ensures that the gas drawn in from the air inlet 12 first gathers in the air inlet cavity 17 and then passes evenly through the three wet film bodies 4. This can improve the contact efficiency between the gas and the wet film bodies 4 and ensure the uniformity of the humidity of the discharged gas.

[0023] For the air supply unit, the preferred embodiment of this utility model is as follows: Figure 4 As shown, the air supply unit is an axial flow fan 6 installed in the air outlet 11. The axial flow fan 6 has a large air volume, ensuring that the gas in the grain silo 5 can be drawn into the box-shaped main body 1, and at the same time delivered into the grain surface space of the grain silo 5 through the air supply pipe 2.

[0024] like Figure 5As shown, the water supply unit includes a water tank 7 located at the bottom of the box-shaped main body 1 and a water pump 71 located inside the water tank 7. The water pump 71 supplies water to the top of the wet membrane body 4 through a water pipe, and excess water flows back into the water tank 7 from below the wet membrane body 4. The water tank 7 is an independent structure located at the bottom of the box-shaped main body 1 and can be made of plastic to ensure its service life. The water pump 71 delivers water from the water tank 7 to the inlet at the top of the wet membrane body 4, and then the water flows down the wet membrane body 4 back into the water tank 7, realizing water recycling and ensuring that the wet membrane body 4 is always in a moist state.

[0025] Because water tank 7 has a limited water capacity, a continuous external water supply is needed to ensure continuous operation of the equipment. Therefore, a further preferred solution is, as follows: Figure 2 , Figure 3 As shown, the water supply unit also includes a filter box 18 installed on the inner wall of the box-shaped main body 1. The filter box 18 contains a filter 8. The inlet of the filter 8 is connected to the inlet 82 on the side wall of the box-shaped main body 1 via an inlet pipe 81. A solenoid valve 83 and a water flow sensor 84 are installed on the inlet pipe 81. The outlet of the filter 8 is connected to the water tank 7 via an outlet pipe 85. In use, the water supply pipe in the grain depot is connected to the inlet 82. The solenoid valve 83 controls the valve opening based on the water flow detected by the water flow sensor 84, thereby regulating the water flow. The filter 8 prevents impurities in the water from clogging the wet membrane 4 and affecting gas permeability.

[0026] like Figure 6 As shown, to prevent excessive water from entering the water tank 7, an overflow pipe 9 is provided at the top of the water tank 7. When the water level in the water tank 7 exceeds the overflow pipe 9, the excess water flows out through the drain outlet 91 on the side of the tank body 1 along the overflow pipe 9. Alternatively, a water level monitor can be installed in the water tank and associated with a solenoid valve 83. When the water level reaches the set upper limit, the solenoid valve 83 is closed; when the water level drops to the set lower limit, the solenoid valve 83 is opened, thus ensuring a continuous water supply. In addition, a drain hole 73 is provided at the bottom of the water tank 7, and a valve is installed at the drain hole 73. When the device is not used for a long time, the valve can be manually opened to drain the water in the water tank 7 through the drain hole 73, preventing water from contaminating the water tank 7.

[0027] In addition, considering that the water in the wet film body 4 may evaporate slowly, an ultrasonic atomizer 72 can be installed in the water tank 7. The ultrasonic atomizer 72 is used to atomize the water in the water tank 7, thereby increasing the gas humidity and improving the efficiency of replenishing moisture in the chamber.

[0028] Furthermore, to ensure the safe and stable operation of the entire equipment, a controller is also required. A control box 19 is installed inside the main body 1, and the controller is housed within the control box 19. The control box 19 needs to be properly sealed to prevent moisture from entering and affecting the operation of electrical components. The controller controls the air supply unit, water supply unit, and ultrasonic atomizer 72 to work collaboratively according to set requirements. The controller and other electrical components are all existing technologies; this application only selects suitable equipment as needed and constructs the hardware execution logic based on conventional industrial control principles. Specifically, different humidification levels can be preset in the controller. During use, the appropriate level is selected based on the air humidity inside the grain silo 5. Different levels mainly involve different wind speeds of the axial flow fan 6, different efficiency of the water pump 71 (i.e., different humidity levels of the wet film 4), and whether the ultrasonic atomizer 72 is used. The humidification level and humidification time can also be set according to different grain varieties. Additionally, the solenoid valve 83, water flow sensor 84, and water level monitor are all connected to the controller for automated control of the water supply.

[0029] The optimal start-up time for this utility model is approximately two months before grain is removed from storage. Downward ventilation should be selected. When the outside temperature minus the average grain temperature is ≥8℃, continuous ventilation should continue until the end of the operation. In case of accidental shutdown, the ventilation openings should be sealed immediately to prevent severe condensation of the grain near the air duct. Depending on the grain variety and local environment, the equipment can be controlled according to the following start-up and shutdown parameters (when humidification is activated, the fan starts simultaneously; when the fan stops, humidification automatically stops): 1. Rice Humidification and fan operation: External temperature - average grain temperature ≥ 3℃ and warehouse humidity ≤ 70%; Humidification stopped: Warehouse humidity ≥ 80% or air outlet humidity ≥ 95%; When the fan and humidifier stop: the outside temperature minus the vent temperature is ≤0.5℃.

[0030] 2. Corn Humidification and fan operation: External temperature - average grain temperature ≥ 3℃ and warehouse humidity ≤ 70%; Humidification stopped: Warehouse humidity ≥ 80% or air outlet humidity ≥ 95%; When the fan and humidifier stop: the outside temperature minus the vent temperature is ≤0.5℃.

[0031] 3. Wheat Humidification and fan operation: External temperature - average grain temperature ≥ 3℃ and warehouse humidity ≤ 65%; Humidification stopped: Warehouse humidity ≥75% or air outlet humidity ≥95%; When the fan and humidifier stop: the outside temperature minus the vent temperature is ≤0.5℃.

[0032] 4. Soybeans Humidification and fan operation: External temperature - average grain temperature ≥ 3℃ and warehouse humidity ≤ 65%; Humidification stopped: Warehouse humidity ≥75% or air outlet humidity ≥95%; When the fan and humidifier stop: the outside temperature minus the vent temperature is ≤0.5℃.

Claims

1. A mobile grain humidity control device, characterized in that: The box-shaped body (1) includes a walking mechanism at the bottom, an air outlet (11) at the top that can be connected to the air supply pipe (2), and an air inlet (12) on the side that can be connected to the return air pipe (3). The box-shaped body (1) contains a wet film body (4), an air supply unit, and a water supply unit. The air supply unit draws air from the grain silo (5) into the box-shaped body (1) through the return air pipe (3) connected to the ventilation opening (51) at the bottom of the grain silo (5), and after passing through the wet film body (4), it is sent into the grain silo (5) through the air supply pipe (2) extending into the window (52) at the top of the grain silo (5). The water supply unit replenishes water to the wet film body (4).

2. The mobile grain humidity control device as described in claim 1, characterized in that: The walking mechanism is a roller (13) located at the bottom of the box-shaped body (1).

3. The mobile grain humidity control device as described in claim 1, characterized in that: The box-shaped body (1) has a ladder (14) on its side and a fence (15) around its top. The box-shaped body (1) has a door (16) on one side and an air inlet (12) on each of the other three sides.

4. A mobile grain humidity control device as described in claim 3, characterized in that: The wet film body (4) includes three, which are respectively set to correspond to the three air inlets (12). The three wet film bodies (4), together with the upper and lower surfaces of the box-shaped main body (1) and the three sides where the air inlets (12) are located, form an air inlet cavity (17).

5. A mobile grain humidity control device as described in claim 1, characterized in that: The air supply unit is an axial flow fan (6) installed in the air outlet (11).

6. A mobile grain humidity control device as described in claim 1, characterized in that: The water supply unit includes a water tank (7) located at the bottom of the box-shaped main body (1) and a water pump (71) located in the water tank (7). The water pump (71) supplies water to the top of the wet membrane body (4) through a water pipe, and excess water flows back into the water tank (7) from below the wet membrane body (4).

7. A mobile grain humidity control device as described in claim 6, characterized in that: The water supply unit also includes a filter box (18) installed on the inner wall of the box-type main body (1). The filter box (18) is equipped with a filter (8). The water inlet of the filter (8) is connected to the water inlet (82) on the side wall of the box-type main body (1) through the water inlet pipe (81). A solenoid valve (83) and a water flow sensor (84) are installed on the water inlet pipe (81). The water outlet of the filter (8) is connected to the water tank (7) through the water outlet pipe (85).

8. A mobile grain humidity control device as described in claim 7, characterized in that: The top of the water tank (7) is also provided with an overflow pipe (9). When the water level in the water tank (7) exceeds the overflow pipe (9), the excess water flows out from the drain outlet (91) on the side of the main body (1) of the tank along the overflow pipe (9). The bottom of the water tank (7) is provided with a drain hole (73) and a valve is provided at the drain hole (73).

9. A mobile grain humidity control device as described in claim 7, characterized in that: The water tank (7) is equipped with an ultrasonic atomizer (72).

10. A mobile grain humidity control device as described in claim 9, characterized in that: The main body (1) of the box is also equipped with a control box (19), and the control box (19) is equipped with a controller. The controller controls the operation of the air supply unit, the water supply unit and the ultrasonic atomizer (72) according to the set requirements.

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