Crop material pile mildew-proof device

Abstract

The utility model discloses a crop material pile mould-proof device, which relates to the technical field of crop drying and comprises a cart, a heating box is fixedly mounted on one side of the cart, a hot air pipe is fixedly communicated with one side of the heating box, and a recovery mechanism is sleeved on the outer surface of the hot air pipe. According to the ozone drying device, the gas backflow device is arranged, the fan, the heater and the ozone generator are additionally arranged on the base, the Venturi tube is installed at one end of the fixed tube, ozone generated by the ozone generator and hot air in the fixed tube are mixed through the Venturi tube, and the mixed gas is discharged to the drying main tube through the telescopic hose; the air outlet holes in the drying main pipe are used for drying the crop material piles, dried air flows back to the fan through the first air suction holes, used for flowing back to the air outlet holes, in the backflow air pipe and the second air suction holes, used for flowing back to the air outlet holes, in the transverse flow pipe, and the air is recycled; the influence of growth of aspergillus flavus and other similar molds on the crop material pile is prevented, and the mildew-proof effect of the crop material pile is improved.

Description

Technical Field

[0001] This utility model relates to the field of anti-mold treatment technology for agricultural material piles, and particularly to an anti-mold device for agricultural material piles. Background Technology

[0002] After harvesting, crop stalks are often baled (such as hay and rice straw). The presence of moisture in the baled crop material piles makes them susceptible to mold growth, including fungi such as Trichoderma, Aspergillus flavus, Persimmon mold, and yeast. Aspergillus flavus is a common mold, and its aflatoxins (especially B1) are highly carcinogenic, teratogenic, and immunosuppressive. Therefore, crop material piles should be treated to prevent mold growth and ensure they meet internal requirements. However, existing methods often only involve drying the crop material piles, which is usually quite simple, using only heated air. While conventional drying can reduce the moisture content to some extent, it cannot prevent mold growth (such as Aspergillus flavus). Furthermore, existing equipment typically dries the crop material during baling. Even after drying, mold can still appear in the piles after a certain period of storage. Existing drying equipment is ineffective at preventing mold growth in moldy crop material piles. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mold prevention device for agricultural material piles, which can perform mold prevention treatment on agricultural material piles and improve the mold prevention effect of agricultural material piles.

[0004] The purpose of this utility model is achieved through the following technical solution: a mold prevention device for crop material piles, including a base, a heater, and a gas reflux device. The heater is installed on the base, and a drying component inserted into the crop material is fixedly connected to one side of the heater. The drying component consists of a fixed pipe fixedly installed on the air outlet of the heater, a main drying pipe inserted into the center of the crop material pile, and a connecting pipe connecting the fixed pipe and the main drying pipe. An ozone generator is installed on the fixed pipe, and multiple air outlets are provided on the main drying pipe. The gas reflux device consists of a fan, multiple reflux air pipes, and multiple air pipes. The reflux air pipes are inserted into the crop material and arranged around the main drying pipe. The air pipes are connected to each other. The fan is installed on the base and is a double-inlet fan. The air outlet of the fan is connected to the air inlet of the heater. One air inlet of the fan is external, and the other air inlet of the fan is connected to all air pipes simultaneously through a pipe connector. The reflux air pipe is provided with a first suction hole facing inward for refluxing the air outlet.

[0005] A Venturi tube is installed between the ozone generator and the fixed pipe. The output port of the ozone generator is connected to the throat of the Venturi tube, and the inlet and diffuser ends of the Venturi tube are connected to the fixed pipe. The purpose of the Venturi tube is to guide the ozone flow generated by the ozone generator into the throat to mix with the dry airflow and form a stable airflow. The Venturi tube is a common device based on the Venturi effect. Its basic principle is that the Venturi effect occurs when a confined flow passes through a narrowed cross-section, and the flow velocity increases. The flow velocity is inversely proportional to the cross-section. This effect generates low pressure near high-speed airflow, thus producing adsorption. Venturi tubes are widely used in airflow mixing technology, and their applications will not be elaborated here. It should be noted that the ozone generator can also be directly connected to the fixed pipe by adding a T-junction to the fixed pipe. An airflow valve can be installed on the port connected to the ozone generator. When the pressure at the ozone generator's output port exceeds the threshold of the airflow valve, the airflow valve opens, allowing ozone to enter the dry airflow.

[0006] As a further improvement of this application, a crossflow pipe communicating with the return air duct is provided between the return air ducts. The crossflow pipe further increases the recovery efficiency of the return air duct to the main drying pipe. A second suction hole facing inward and used for returning the air outlet is provided on the crossflow pipe. Preferably, the diameter of the air outlet is larger than the diameter of the first suction hole. The diameter of the second suction hole is smaller than the diameter of the air outlet.

[0007] The base is equipped with a walking component, which can be either wheeled or tracked. A plug is provided at the unconnected ends of the return air duct and the main drying pipe. Both ends of the connecting pipe are threaded connectors, and the fixed pipe and the main drying pipe are provided with threaded grooves that mate with the threaded connectors. The connecting pipe is a PTFE flexible hose. In this application, the connecting pipe is detachable, replaceable, and flexible, making it suitable for use with agricultural material piles of different heights and angles.

[0008] It should be noted that the heater is an air heater, which is an electric heating device primarily used to heat gas flow. The heating element of the air heater is a stainless steel electric heating tube. The heater's internal cavity has multiple baffles (guide plates) to guide the gas flow, prolonging the gas's residence time within the cavity, thereby ensuring thorough and uniform heating and improving heat exchange efficiency. The stainless steel heating tube, the heating element of the air heater, is formed by inserting an electric heating wire into a seamless steel tube, filling the gaps with magnesium oxide powder, which has good thermal conductivity and insulation, and then shrinking the tube. When current passes through the high-temperature resistance wire, the generated heat diffuses through the crystalline magnesium oxide powder to the surface of the heating tube and is then transferred to the air being heated, achieving the heating purpose.

[0009] During actual use, the applicant found that there is often a distance between the crop material pile and the base. A ventilator is installed between the air duct and the blower. This ventilator is mounted on the base, with an outlet on one side and multiple inlets on the other. The outlet is connected to one of the blower's inlets via a pipe, and the inlets are connected to the air duct. The ventilator reduces the amount of piping required, making the installation of related pipes more efficient. It should be noted that the air duct can also be directly connected to the blower. Regardless of the connection method, gas recirculation and recycling can be achieved.

[0010] The ozone generated by the ozone generator in this application is a common sterilizing gas with strong oxidizing properties. Ozone disinfection is thorough, residue-free, and has a broad bactericidal spectrum, capable of killing bacteria, viruses, and various pathogens. However, ozone irritates the respiratory mucosa of organisms. Therefore, ozone disinfection must be carried out in the absence of personnel or under proper protective conditions, and entry should not occur until at least 30 minutes have elapsed after disinfection. In actual use, the required ozone concentration in agricultural material piles is very low, generally only 8-10 ppm, with the specific concentration determined based on actual usage. Furthermore, ozone is a strong oxidant and can damage various materials; the higher the concentration, the more severe the damage. It can cause green rust spots on copper sheets, aging and discoloration of rubber, reduced elasticity leading to brittleness and breakage, and bleaching and fading of fabrics. Therefore, in this application, all related pipes are made of stainless steel or PTFE flexible hoses.

[0011] The beneficial effects of this utility model are as follows: by setting up a gas reflux device, adding a fan, heater, and ozone generator to the base, and installing a Venturi tube at one end of the fixed pipe, the Venturi tube mixes the ozone generated by the ozone generator with the hot air inside the fixed pipe. The mixed gas is discharged to the drying main pipe through a telescopic hose, and the agricultural material pile is dried and de-molded using the air outlet on the drying main pipe. The dried gas is returned to the fan through the first air intake on the reflux air pipe and the second air intake on the crossflow pipe, which is also used for the reflux air outlet. This gas recycling prevents the growth of molds such as Aspergillus flavus from affecting the agricultural material pile and improves the anti-mold effect of the agricultural material pile. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model (in which some air ducts are not connected).

[0013] Figure 2 This is a schematic diagram of the gas reflux device in the first embodiment of this utility model;

[0014] Figure 3 This is a schematic diagram showing the arrangement of the drying main pipe and the return air duct in the first embodiment of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of one end of the air-slowing chamber in the first embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the structure of the other end of the slow-flow chamber in the first embodiment of this utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the second embodiment of the present utility model (in which the air duct is not connected).

[0018] Figure 7 This is a schematic diagram of the gas reflux device in the second embodiment of the present invention;

[0019] Figure 8 This is a schematic diagram showing the arrangement of the drying main pipe and the return air duct in the second embodiment of this utility model.

[0020] In the diagram, 1-base, 2-heater, 3-gas reflux device, 4-drying component, 5-plug, 11-moving component, 31-fan, 32-reflux duct, 33-duct, 34-crossflow duct, 35-first air intake hole, 36-second air intake hole, 37-wind chamber, 38-outlet air, 39-inlet air, 41-fixed pipe, 42-drying main pipe, 43-connecting pipe, 44-ozone generator, 45-outlet air, 46-Venturi tube. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1

[0023] like Figure 1-2 As shown, this is the first embodiment of the present application. The agricultural material pile anti-mold device includes a base 1, a heater 2, and a gas recirculation device 3. The heater 2 is mounted on the base 1. A drying component 4 inserted into the agricultural material is fixedly connected to one side of the heater 2. The drying component 4 consists of a fixed pipe 41 fixedly mounted on the air outlet of the heater 2, a main drying pipe 42 inserted into the center of the agricultural material pile, and a connecting pipe 43 connecting the fixed pipe 41 and the main drying pipe 42. An ozone generator 44 is installed on the fixed pipe 41. Multiple air outlets 45 are provided on the main drying pipe 42. The gas recirculation device 3 consists of a fan 31, multiple recirculation air pipes 32, and multiple air pipes 33 (each recirculation air pipe 32 is connected to its corresponding air pipe 33). Figure 3 As shown, the return air duct 32 is inserted into the agricultural material and arranged around the main drying pipe 42 (uniformly arranged in a circle). Eight return air ducts 32 are arranged outside the main drying pipe 42. The air duct 33 is connected to the air duct 32. The fan 31 is installed on the base 1. The fan 31 is a double-inlet fan (such as a double-inlet centrifugal fan). The air outlet of the fan 31 is connected to the air inlet of the heater 2. One air inlet of the fan 31 is external. The other air inlet of the fan 21 is connected to all the air ducts 33 simultaneously through the air pipe connector (only the connection of one air duct is shown, and the remaining air ducts are arranged according to their actual positions). The return air duct 32 is provided with a first suction hole 35 facing inward and used for the return air outlet.

[0024] A Venturi tube 46 is provided between the ozone generator 44 and the fixed pipe 41. A crossflow pipe 34, communicating with the return air ducts 32, is provided between the return air ducts 32, and the crossflow pipes 34 are also interconnected. A second air intake hole 36, facing inward and used for the return air outlet 45, is provided on the crossflow pipe 34. A traveling component 11 (wheels) is provided on the base 1. A plug 5 is provided at the unconnected ends of the return air duct 32 and the main drying pipe 42. Both ends of the connecting pipe 43 are threaded connectors, and threaded connection grooves that mate with the threaded connectors are provided on the fixed pipe 41 and the main drying pipe 42. The connecting pipe 43 is a PTFE flexible hose. Figures 4-5 As shown, a slack air chamber 37 is also provided between the duct 33 and the fan 21. The slack air chamber 37 is mounted on the base 1. One side of the slack air chamber 37 has an outlet air 38, and the other side of the slack air chamber 37 has multiple air inlets 39. The outlet air 38 is connected to one of the air inlets of the fan 21 through a pipe, and the air inlets 39 are connected to the duct 33. The diameter of the air outlet 45 is larger than the diameter of the first air intake 35.

[0025] In use, the drying main pipe 42 is inserted into the crop material pile. The return air pipe 32 and the crossflow pipe 34 are also inserted into the crop material pile, with the return air pipe 32 arranged around the drying main pipe 42. The blower 31 and the ozone generator 44 are started. The blower 31 is a double-inlet blower. The external air inlet of the blower 31 directly draws in air. The air enters the heater 2 through the blower 31. The heater 2 heats the air, making it hot air. The hot air flows through the venturi tube 46, mixes with ozone, and is sent into the drying main pipe 42. The drying main pipe 42 discharges the gas through the air outlet 45 and performs drying and anti-mold (mold removal) treatment on the crop material pile. The treated hot air is then recycled via the gas return device 3. (It should be noted that, since the airflow is applied within the crop material pile, some of it will dissipate through the gaps in the pile. However, because the gas return device 3 is connected to the fan 31, the airflow can still be largely recycled under the action of the fan 31.) Specifically, the return duct 32 draws the treated airflow (cooled mixed airflow) from the crop material pile through the first suction hole 35. The recycled airflow is then returned to the ventilator 37 via the duct 33, and finally returned to another air inlet of the fan 31 for recycling. It should be noted that, in this embodiment, because a crossflow pipe 34 is provided, before use, the main drying pipe 42 and the return duct 32 are inserted into the crop material pile. The return duct 32 extends out of the pile and the crossflow pipe 34 is installed. Then, the return duct 32 is retracted so that the crossflow pipe 34 is also placed into the pile. After use, the main drying pipe 42, the return duct 32, and the crossflow pipe 34 can be directly removed.

[0026] Example 2

[0027] like Figure 6-8 As shown, this is the second embodiment of the present application, an anti-mold device for agricultural material piles. The rest of the structure is the same as in embodiment 1. According to the actual use, the air duct 33 is directly connected to one air inlet of the fan 31 (shown by the dotted arrow). At the same time, the crossflow pipe 34 and the venturi pipe 46 are eliminated. The ozone generator 44 is directly connected to the fixed pipe 41 through a tee, which can also realize gas recirculation.

[0028] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A mold prevention device for agricultural material piles, comprising a base (1) and a heater (2), characterized in that: It also includes a gas recirculation device (3). The heater (2) is mounted on the base (1). A drying component (4) inserted into the crop material is fixedly connected to one side of the heater (2). The drying component (4) consists of a fixed pipe (41) fixedly mounted on the air outlet of the heater (2), a drying main pipe (42) inserted into the center of the crop material pile, and a connecting pipe (43) connecting the fixed pipe (41) and the drying main pipe (42). An ozone generator (44) is installed on the fixed pipe (41). Multiple air outlets (45) are provided on the drying main pipe (42). The gas recirculation device (3) consists of a fan (31) and multiple recirculation pipes. The system consists of an air duct (32) and multiple air ducts (33), wherein the return air duct (32) is inserted into the agricultural material and arranged around the main drying pipe (42), the air duct (33) is connected to the return air duct (32), the fan (31) is installed on the base (1), the fan (31) is a double-inlet fan, the air outlet of the fan (31) is connected to the air inlet of the heater (2), one air inlet of the fan (31) is external, and the other air inlet of the fan (31) is connected to all the air ducts (33) simultaneously through the air pipe connector, and the return air duct (32) is provided with a first suction hole (35) facing inward and used for the return air outlet.

2. The anti-mold device for agricultural material stacking according to claim 1, characterized in that: A venturi tube (46) is provided between the ozone generator (44) and the fixed tube (41).

3. The anti-mold device for agricultural material stacks according to claim 1, characterized in that: A crossflow pipe (34) connected to the return air duct (32) is provided between the return air ducts (32).

4. The anti-mold device for agricultural material stacks according to claim 3, characterized in that: The crossflow pipe (34) is provided with a second suction hole (36) facing inward and used for the return air outlet (45).

5. The anti-mold device for agricultural material stacking according to claim 1, characterized in that: The base (1) is provided with a walking component (11).

6. The anti-mold device for agricultural material stacking according to claim 1, characterized in that: A plug (5) is provided at the unconnected ends of the return air duct (32) and the drying main duct (42).

7. The anti-mold device for agricultural material stacks according to claim 1, characterized in that: The connecting pipe (43) has threaded connectors at both ends, and the fixed pipe (41) and the drying main pipe (42) are provided with threaded connection grooves that cooperate with the threaded connectors.

8. The anti-mold device for agricultural material stacking according to any one of claims 1 or 7, characterized in that: The connecting pipe (43) is a PTFE hose.

9. The anti-mold device for agricultural material stacks according to claim 1, characterized in that: A ventilator (37) is provided between the duct (33) and the fan (31). The ventilator (37) is installed on the base (1). An outlet air (38) is provided on one side of the ventilator (37), and multiple air inlets (39) are provided on the other side of the ventilator (37). The outlet air (38) is connected to one of the air inlets of the fan (31) through a pipe. The air inlet (39) is connected to the duct (33).

10. The anti-mold device for agricultural material stacks according to claim 1, characterized in that: The diameter of the air outlet (45) is larger than the diameter of the first air intake (35).

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