A material storage and microwave drying integrated machine

Abstract

The present application discloses a material storage and microwave drying integrated machine, comprising: a barrel for accommodating granular materials, the barrel being provided with a feed channel, through which the granular materials in the barrel can be transported; a plurality of microwave drying components, which are installed on the barrel and perform microwave drying on the granular materials in the barrel; and a mixing mechanism, which is installed on the barrel and performs mixing on the granular materials in the barrel. The present application adopts pneumatic stirring to circulate the granular materials, and uses microwaves as a heating source to dry the granular materials at a relatively low heating temperature, which has the advantages of energy saving, high efficiency, less heat dissipation to the environment, and less air pollution.

Description

Technical Field

[0001] The present application belongs to the technical field of microwave drying, and specifically relates to an all-in-one material storage and microwave drying machine. Background Art

[0002] In the production and processing of plastic products, if the original plastic particles contain a high amount of water, it will have a great impact on the dimensional accuracy of the parts and the product quality, and even cause the parts to be scrapped. Therefore, before the parts are formed, drying the raw materials of the highly hygroscopic plastic is one of the most important links.

[0003] In order to reduce the moisture in the raw material particles, drying measures are generally adopted before injection molding in the industry. Microwave drying is a new drying method. Microwave energy directly acts on the medium molecules to convert into heat energy. Since microwaves have penetrating properties, the medium is heated inside and outside at the same time, and no external heat conduction is required, so the heating speed is very fast and the drying speed can be greatly shortened. At the same time, regardless of the shape of the object, since the medium of the object is heated inside and outside at the same time, the temperature difference between the inside and outside of the material is small, the heating is uniform, and the situation of external scorch and internal generation in conventional heating will not occur, which greatly improves the drying quality.

[0004] However, the existing microwave drying equipment is also relatively common, and tunnel-type microwave drying equipment is the majority, which is mostly used for drying grain, tea, medicinal materials, feed, etc. The main disadvantages are: large footprint, high equipment cost, and not suitable for compactly arranged factories; because it adopts "through-type" heating, the actual heating time is short, and generally multiple microwave tubes are used to work together at the same time, which requires high power configuration and energy consumption, and the efficiency and energy consumption ratio are very low; manual loading and unloading of materials is required, and the labor intensity is high. Summary of the invention

[0005] In view of the above-mentioned shortcomings or deficiencies of the prior art, the technical problem to be solved by the present application is to provide an all-in-one material storage and microwave drying machine.

[0006] To solve the above technical problems, this application is implemented through the following technical solutions:

[0007] A material storage and microwave drying integrated machine comprises: a material barrel for accommodating granular material, the material barrel being provided with a feeding channel, through which the granular material in the material barrel can be transported; a plurality of microwave drying components, which are installed on the material barrel and perform microwave drying on the granular material in the material barrel; and a mixing mechanism, which is installed on the material barrel and performs mixing operations on the granular material in the material barrel.

[0008] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the mixing mechanism is installed on the barrel through a switching mechanism, wherein the switching mechanism is rotatably connected to the barrel.

[0009] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the mixing mechanism includes: a blowing pipe that is transparently arranged at the top and bottom, a first air source conveying mechanism, a first air source conveying channel, and an exhaust outlet arranged on the barrel; the blowing pipe is arranged in the barrel and connected to the bottom of the barrel, and a plurality of feeding holes are also arranged on the blowing pipe; the first air source conveying mechanism is connected to the bottom of the blowing pipe through the first air source conveying channel.

[0010] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, a cover is also provided on the blowing pipe, and the cover is arranged close to the bottom of the blowing pipe and above the feeding hole.

[0011] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the cover is detachably connected to the blowing pipe and can slide up and down along the blowing pipe. The cover is preferably a hat-shaped cover.

[0012] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, a protrusion structure is also provided on the blowing pipe, wherein the protrusion structure is arranged between the feeding hole and the cover.

[0013] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the switching mechanism includes: a rotating disk and a rotating assembly arranged on the rotating disk, and the rotating disk is arranged to fit the bottom pipe opening of the barrel; one end of the rotating assembly is fitted to the bottom of the barrel, and the other end of the rotating assembly is installed on the frame; the rotating disk is also provided with a first through hole connected to the first air source delivery channel and a second through hole connected to the discharge pipe.

[0014] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the rotating assembly includes a linear bearing and a rotating shaft, the linear bearing is installed on the rotating disk, and the rotating shaft is inserted into the linear bearing, wherein one end of the rotating shaft is attached to the bottom of the barrel, and the other end of the rotating shaft is installed on the frame; wherein the linear bearing can also be replaced by a bushing.

[0015] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, a limiting plate is also provided on the rotating shaft, and the rotating shaft is fitted with the bottom of the barrel through the limiting plate.

[0016] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the rotating shaft is also provided with a compression spring.

[0017] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the rotating disk is a fan-shaped rotating disk structure.

[0018] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the outer periphery of the rotating disk is also provided with a vertical edge to prevent the granular material from scattering.

[0019] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the rotating disk is fitted with a sealing rubber ring arranged on the outside of the bottom pipe opening of the barrel.

[0020] Furthermore, the above-mentioned integrated material storage and microwave drying machine further includes a feeding mechanism, and the feeding mechanism is connected to the barrel through the feeding channel.

[0021] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the feeding mechanism includes a feeding hopper for temporarily storing granular materials, a feeding pipe and a second air source conveying mechanism, wherein a first three-way valve is connected to the bottom of the feeding hopper, the first air source conveying mechanism is connected to the first three-way valve through a second air source conveying channel, and the feeding pipe also connected to the first three-way valve is connected to the barrel.

[0022] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the second gas source delivery mechanism is connected to the second gas source delivery channel and the first gas source delivery channel respectively through a second three-way valve.

[0023] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the second air source conveying mechanism and the first conveying mechanism are the same air source conveying mechanism or different air source conveying mechanisms.

[0024] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the microwave drying component is mounted on the combination hole on the barrel by riveting.

[0025] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the microwave drying component includes: a microwave magnetron and a driving power supply used in conjunction with the microwave magnetron.

[0026] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, a reinforcing bracket is also provided on the top of the cylinder, and a plurality of threading holes are also provided on the reinforcing bracket.

[0027] Furthermore, the above-mentioned integrated material storage and microwave drying machine further includes a protective cover, which is wrapped around the periphery of the microwave drying component.

[0028] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the protective cover is formed by an annular flat plate, an inner skirt and an outer skirt.

[0029] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the protective cover is arranged around the exhaust outlet arranged on the barrel.

[0030] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the inner skirt is provided with a plurality of air outlet pipes, and the air outlet pipes are used to guide the airflow blown out from the top of the barrel to the microwave drying components arranged around it; and the outer skirt is provided with a plurality of air dispersion holes for dispersing the airflow and heat to the surrounding area.

[0031] Furthermore, the above-mentioned integrated material storage and microwave drying machine further includes a top cover for preventing microwaves from leaking from the top of the barrel, wherein the top cover is arranged on the top of the exhaust outlet.

[0032] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the top cover is also connected to a bulk material tray via a connecting rod, wherein the bulk material tray is arranged close to the top of the mixing mechanism.

[0033] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the bulk material tray is made of glass or ceramic material.

[0034] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the surface of the bulk material tray is provided with a metal nano coating.

[0035] Furthermore, the above-mentioned integrated material storage and microwave drying machine further includes a temperature sensor, and the temperature sensor is arranged on the upper part of the barrel.

[0036] Furthermore, in the above-mentioned integrated material storage and microwave drying machine, the material barrel includes a cylindrical structure arranged at an upper portion and a funnel-shaped structure arranged at a lower portion, wherein the cylindrical structure and the funnel-shaped structure are smoothly connected.

[0037] Furthermore, the above-mentioned integrated material storage and microwave drying machine, wherein, further comprises an upper material level sensor and a lower material level sensor, and the upper material level sensor and the lower material level sensor are respectively arranged at the upper part and the lower part of the barrel.

[0038] Furthermore, the above-mentioned integrated material storage and microwave drying machine further includes a frame with casters, and the frame is used to install the material barrel.

[0039] Compared with the prior art, this application has the following technical effects:

[0040] This application applies to a dual-purpose machine, which can be used as a separate storage tank, or as a granular material dryer when the microwave tube is turned on while mixing the materials;

[0041] The present application has low energy consumption and high energy efficiency, and utilizes the characteristic of microwave heating from the inside of water-containing particles, and cooperates with a mixing mechanism to circulate the particle material;

[0042] The present invention has a short drying time and high working efficiency. The present invention can shorten the drying time of the traditional externally heated pellet material drying method by about half. According to experimental measurements, the drying effect required by production can be achieved by using the present dryer for 40 minutes to 1 hour.

[0043] The drying process temperature of this application is relatively low due to good room temperature wind or through N 2 The gas is circulated and the material is turned. The temperature of the pellet drying process is moderate, basically below 100°C, and the physical and chemical properties of the pellets are not damaged.

[0044] The cavity of the present application has good sealing performance, no large openings, strict control of microwave diffusion outside the barrel, and microwave leakage below the prescribed detection standard; small impact on the environment, low-temperature drying process generates little heat radiation and air pollution;

[0045] This application can realize full-automatic control, reduce labor workload, and has complete reserved interfaces, which can be easily used with existing equipment;

[0046] The overall structure of this application is compact, the floor space is small, the equipment cost is not high, and it has obvious advantages over traditional hot air dryers;

[0047] This application is not only applicable to the plastic products industry, but can also be used for drying granular materials in other industries, such as chemical fiber, textile, medicine, food, feed and other industries, and is also applicable to production processes that require drying granular materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0049] Figure 1 : Schematic diagram of the three-dimensional structure of the material storage and microwave drying integrated machine of the present application;

[0050] Figure 2 : A longitudinal cross-sectional view of the material storage and microwave drying integrated machine of the present application;

[0051] Figure 3 : The working principle diagram of the material storage and microwave drying all-in-one machine of this application;

[0052] Figure 4 : A schematic diagram of the three-dimensional structure of the barrel in this application;

[0053] Figure 5 : A schematic diagram of the structure of the blowing pipe in this application;

[0054] Figure 6 : A schematic diagram of the three-dimensional structure of the protective cover in this application;

[0055] Figure 7 :like Figure 6 A longitudinal cross-sectional view of the structure;

[0056] Figure 8 : A schematic diagram of the three-dimensional structure when the top cover is connected to the bulk material tray in this application;

[0057] Fig. 9 :like Figure 8 A longitudinal cross-sectional view of the structure shown;

[0058] Fig.10 : A schematic diagram of the three-dimensional structure of the switching mechanism in this application;

[0059] Fig.11 :like Fig.10 Longitudinal cross-sectional view of the structure shown. DETAILED DESCRIPTION

[0060] The concept, specific structure and technical effects of the present application will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present application.

[0061] like Figures 1 to 3 As shown, the storage and microwave drying machine of this embodiment includes: a barrel 02, which is used to hold granular materials and is provided with a feed channel, through which the granular materials in the barrel 02 can be transported; a plurality of microwave drying components, which are installed on the barrel 02 and perform microwave drying on the granular materials in the barrel 02; and a mixing mechanism, which is installed on the barrel 02 and performs mixing on the granular materials in the barrel 02. This embodiment has two uses in one machine, which can be used as a separate storage tank, or the microwave drying components can be opened while mixing materials, and used as a granular material dryer; and it has low energy consumption and high energy efficiency, and uses the characteristic of microwave heating from the inside of the water-containing particles, and cooperates with the mixing mechanism to circulate the granular materials.

[0062] like Figure 3 and Figure 4 As shown, the barrel 02 includes a cylindrical structure 0201 disposed at the top and a funnel-shaped structure 0202 disposed at the bottom, the cylindrical structure 0201 and the funnel-shaped structure 0202 are smoothly connected, and the barrel 02 is preferably an integrally formed structure. The inclination angle of the funnel-shaped structure 0202 is preferably about 45°.

[0063] In this embodiment, the barrel 02 is preferably made of stainless steel, and the blowing tube 03 described below is also preferably made of stainless steel. The barrel 02 can also be made of a glass tube. Although the cost of opening a hole in a glass tube is higher, the wear resistance is better.

[0064] This embodiment is also equipped with a frame 01, and the frame 01 is used to install the barrel 02. The barrel 02 can be upright on the frame 01, and a plurality of casters are installed at the lower end of the frame 01 to facilitate the movement of the device.

[0065] The microwave drying assembly is installed on the combination hole 0207 on the barrel 02 by riveting. The microwave drying assembly includes: a microwave magnetron 07 and a driving power supply 08 used in conjunction with the microwave magnetron 07. Of course, in order to obtain a better drying effect, multiple microwave magnetrons 07 can be provided, and they are arranged on the side or bottom of the upper part (cylindrical structure 0201) of the barrel 02. Of course, the specific arrangement method can be uniform or non-uniform, such as uniformly arranging multiple microwave magnetrons 07 along the circumference of the circular structure. The waveguide port of the microwave magnetron 07 is arranged toward the surface of the granular material. For example, when the microwave magnetron 07 is arranged at the top of the barrel 02, the waveguide port of the microwave magnetron 07 is arranged downward and toward the upper surface of the granular material.

[0066] The microwave magnetrons 07 are arranged in combination at the top of the barrel 02. Preferably, multiple groups of microwave magnetrons 07 can be arranged along the circumference to improve efficiency, and the power exhaust gas of the air source conveying mechanism 05 described below is used to force ventilation and cooling of the microwave drying components.

[0067] The upper part of the barrel 02 is also provided with an openable lid 0203, and after the lid 0203 is covered, the barrel 02 forms a sealed space.

[0068] A reinforcing bracket 0205 is also provided on the top of the cylinder, and a plurality of threading holes are also provided on the reinforcing bracket 0205.

[0069] In this embodiment, the mixing mechanism is installed on the barrel 02 via a switching mechanism 012 , wherein the switching mechanism 012 is rotatably connected to the barrel 02 .

[0070] In this embodiment, if Figures 1 to 4 As shown, the mixing mechanism includes: a blowing pipe 03 that is transparent at the top and bottom, a first air source delivery mechanism, a first air source delivery channel 0601, and an exhaust outlet 0206 arranged on the barrel 02; the blowing pipe 03 is arranged in the barrel 02 and connected to the bottom of the barrel 02, and a plurality of feeding holes are also arranged on the blowing pipe 03; the first air source delivery mechanism is connected to the bottom of the blowing pipe 03 through the first air source delivery channel 0601. This embodiment adopts pneumatic or N 2The gases are blown upward from the lowest point of the blowing tube 03 in sequence, and the upper granular materials move downward in sequence, so as to realize the cyclic flipping of the granular materials in sequence, and at the same time, the granules are heated by the microwave drying component. The microwave is sensitive to polar molecules and preferentially heats the moisture in the granules, so as to heat the granules from the inside of the water-containing granules to drive out the moisture, and the granular materials are stirred and evenly dissipated by wind. The airflow exchanges gas inside and outside the barrel 02 through the first air source conveying mechanism. After multiple cycles, the granular materials to be dried are dehydrated and dried at a suitable temperature (below 100°C). In this embodiment, the first air source conveying mechanism and the first conveying mechanism described below are the same air source conveying mechanism 05 or different air source conveying mechanisms 05. When the first air source conveying mechanism and the second conveying mechanism described below use the same air source conveying mechanism 05, such as a blower or a N 2 When the air source is used, the air source conveying mechanism 05 is connected to the first air source conveying channel 0601 by switching the second three-way valve 06, and the granular material in the barrel 02 is pneumatically or pneumatically mixed by the positive pressure air source; or, the air source conveying mechanism 05 is connected to the second air source conveying channel 0602 by switching the second three-way valve 06 described below, and the granular material and other materials are conveyed into the barrel 02 by the positive pressure air source. Among them, the same air source conveying mechanism 05 is used as the power source to realize material loading and cyclic material turning, which is less mechanically worn on plastic particles than the spiral friction form of material lifting, and is not easy to generate fine dust.

[0071] In this embodiment, the blowing pipe 03 is preferably fixed at the center of the barrel 02. The blowing pipe 03 adopts a structure in which air enters from the bottom, the wall of the pipe near the bottom is opened for feeding, and the top outlet is used for discharging. The feeding hole 0301 is a vertical rectangle, and the number of holes is 4. Figure 5 The structure and number of the above-mentioned feed holes 0301 are only one of the possible implementation methods, and do not limit the protection scope of the present application. Those skilled in the art can adopt other structures or other numbers of feed holes 0301 according to actual needs.

[0072] The top cover 022 of the barrel 02 is also provided with a bulk material tray 021 as described below, which is arranged near the top of the mixing mechanism, wherein the bulk material tray 021 is arranged above the top of the blowing pipe 03. The function of the bulk material tray 021 is to block the granular material rushing out from the blowing pipe 03, change the airflow and the direction of the granular material, and make the granular material evenly dispersed around and fall into the barrel 02.

[0073] like Figure 5As shown, the blowing tube 03 is also provided with a cover 0304, which is arranged near the bottom of the blowing tube 03 and above the feeding hole 0301. The cover 0304 is used to disperse the granular material to the feeding hole 0301, so that the granular material in the barrel 02 can enter the blowing tube 03 evenly from all sides through the feeding hole 0301, but the height of the granular material entering the blowing tube 03 will not exceed the upper end of the feeding hole 0301.

[0074] The blowing tube 03 is also provided with a protrusion 0305 structure, wherein the protrusion 0305 structure is arranged between the feeding hole 0301 and the cover 0304. The protrusion 0305 structure can prevent the cover 0304 from being excessively adjusted downward to contact the inner wall of the funnel-shaped structure 0202, thereby closing the feeding hole 0301.

[0075] The cover 0304 is detachably connected to the blowing tube 03 and can slide up and down along the blowing tube 03 to adjust the distance between the lower edge of the cover 0304 and the bottom of the funnel-shaped structure 0202, thereby controlling the speed at which the granular material enters the blowing tube 03.

[0076] Furthermore, the cover 0304 is a hat-shaped cover, wherein the cover 0304 is preferably made of non-metallic materials, preferably heat-resistant plastics or glass. The angle between the inclined surface of the hat-shaped cover and the horizontal plane is preferably 45°, and the inclined surface and the surface of the corresponding funnel-shaped structure 0202 are arranged perpendicular to each other. The lower end of the central circular ring of the hat-shaped cover is welded with a hat-shaped edge, which is sleeved on the blowing pipe 03 through the central ring and fixed on the blowing pipe 03 with screws.

[0077] like Figure 6 and Figure 7 As shown, this embodiment further includes a protective cover 09, which is wrapped around the periphery of the microwave drying assembly. The protective cover 09 is wrapped around the periphery of the microwave magnetron 07 and the driving power supply 08 group to protect the high-voltage lines of the microwave magnetron 07 and the driving power supply 08 group to avoid bumps or electric shocks.

[0078] The inner skirt 0902 is provided with a plurality of air outlet pipes 0904, and the air outlet pipes 0904 are used to guide the airflow blown out from the top of the barrel 02 to the microwave drying components arranged around, so as to forcibly strengthen the air cooling effect on the microwave magnetron 07; the outer skirt 0903 is provided with a plurality of air diffusion holes 0905, which are used to disperse the airflow to the surrounding and dissipate heat.

[0079] Among them, Figure 6 and Figure 7 As shown, the protective cover 09 is formed by an annular flat plate 0901 , an inner skirt 0902 and an outer skirt 0903 .

[0080] In this embodiment, the protective cover 09 is disposed around the exhaust outlet 0206 disposed on the barrel 02. The protective cover 09 can utilize the airflow discharged from the exhaust outlet 0206 to enhance the air cooling effect on the microwave drying component, and can disperse the airflow and dissipate heat to the surroundings in time.

[0081] like Figure 8 and Fig. 9 As shown, a top cover 022 is also provided on the central hole of the protective cover 09, wherein the top cover 022 is provided on the top of the exhaust outlet 0206. The top cover 022 is used to prevent microwaves from leaking from the top of the barrel 02 and prevent airflow from escaping from the top hole, forcing the airflow to blow toward the microwave magnetron 07 from the air outlet pipe 0904 provided on the inner skirt 0902.

[0082] Furthermore, the top cover 022 is connected to a bulk material tray 021 through a connecting rod 023, wherein the bulk material tray 021 is arranged near the top of the mixing mechanism. The function of the bulk material tray 021 is to block the granular material rushing out from the blowing pipe 03, change the airflow and the direction of the granular material, and make the granular material evenly dispersed to the surroundings and fall into the barrel 02.

[0083] The bulk material tray 021 is made of glass or ceramic materials. Glass and ceramics are hard and wear-resistant and do not block microwaves. When drying and turning materials, they are used to disperse the granular materials blown up from the blowing tube 03 to prevent the particles from directly impacting the microwave magnetron 07. When adding materials into the blowing tube 03 by wind, the bulk material tray 021 can disperse the impact force of the incoming particles. The bulk material tray 021 located above the top of the blowing tube 03 can also prevent the granular materials from entering the blowing tube 03 from the upper opening, causing the blowing tube 03 to be blocked due to excessive accumulation of materials.

[0084] Of course, a metal nano-coating can also be provided on the surface of the bulk material tray 021, which is used to disperse the granular material blown up from the blowing tube 03 when drying and turning the material, and prevent the particles from rushing toward the microwave magnetron 07; when adding material into the blowing tube 03 by wind force, the bulk material tray 021 provided with a metal nano-coating can disperse the impact force of the incoming particles, and the bulk material tray 021 at the mouth of the blowing tube 03 can also prevent the granular material from entering the blowing tube 03 from the upper mouth, causing the granular material accumulated in the blowing tube 03 to be too high and blocked, etc.

[0085] In this embodiment, a sealing rubber ring 025 is further provided at the bottom of the barrel 02, through which the bottom pipe opening 0204 of the barrel 02 is tightly fitted with the switching mechanism 012 described below, and the sealing rubber ring 025 can effectively prevent air leakage.

[0086] like Fig.10 and Fig.11As shown, the switching mechanism 012 includes: a rotating disk 01201 and a rotating assembly arranged on the fan-shaped rotating disk 01201, and the fan-shaped rotating disk 01201 is arranged in close contact with the bottom pipe opening 0204 of the barrel 02; one end of the rotating assembly is in close contact with the bottom of the barrel 02, and the other end of the rotating assembly is installed on the frame 01; the rotating disk 01201 is also provided with a first through hole connected to the first gas source delivery channel 0601 and a second through hole 01203 connected to the discharge pipe 013. In the arrangement form of the switching mechanism 012 of this embodiment, the mixing / feeding (the bottom of the barrel 02 is connected to the first through hole), drying (the bottom of the barrel 02 is in close contact with the position between the first through hole and the second through hole 01203), and discharging (the bottom of the barrel 02 is connected to the second through hole 01203) working states are arranged in sequence in three directions, so that the inlet and outlet are in a completely closed state during the mixing operation.

[0087] The first through hole is connected to the first air source delivery channel 0601 through an air inlet U-shaped tube 014 .

[0088] For the convenience of rotation, a rotating handle 01205 is provided at the middle position of the bottom of the rotating disk 01201.

[0089] In this embodiment, the rotating disk 01201 is a fan-shaped rotating disk structure. In this embodiment, the rotating disk 01201 is preferably a fan-shaped rotating disk structure of approximately 90°.

[0090] The rotating assembly includes a linear bearing 015 and a rotating shaft 016, wherein the linear bearing 015 is mounted on the rotating disk 01201, and the rotating shaft 016 is inserted into the linear bearing 015, wherein one end of the rotating shaft is attached to the bottom of the barrel 02, and the other end of the rotating shaft is mounted on the frame 01. By rotating the rotating assembly, three working states of mixing, stirring and drying, and discharging of the granular material in the barrel 02 can be realized. Among them, the main function of setting the linear bearing 015 is to enable the rotating disk 01201 to move up and down along a straight line and rotate around the axis.

[0091] Furthermore, in this embodiment, the linear bearing 015 can also be replaced by a bushing.

[0092] The rotating shaft is vertically mounted on the bottom plate 019 and is fixed to the bottom of the frame 01 together with the bottom plate 019 .

[0093] Furthermore, a compression spring 017 is also provided on the rotating shaft 016. The force of the spring 017 is used to ensure that the rotating disk 01201 and the bottom of the barrel 02 are fully fitted, and the leakage of microwaves can be controlled more safely than the traditional open inlet and outlet.

[0094] The rotating shaft 016 is also provided with a limiting piece 018, through which the rotating shaft 016 is fitted with the bottom of the barrel 02. The limiting piece 018 can prevent the switching mechanism 012 from falling off from the bottom of the barrel 02.

[0095] The outer periphery of the rotating disk 01201 is also provided with a vertical edge 01202 that is arranged beyond the plane of the rotating disk 01201. The vertical edge 01202 can prevent individual granular materials from spilling out. In order to ensure smooth rotation of the rotating disk 01201, the vertical edge 01202 on the rotating disk 01201 is flat inside and has no protrusions, so that the protrusions will not be scratched and blocked during rotation.

[0096] This embodiment further includes a feeding mechanism, which is connected to the barrel 02 through the feeding channel. The feeding mechanism is used to transport materials such as granular materials into the barrel 02.

[0097] Among them, the feeding mechanism includes a feeding hopper 020 for temporarily storing granular materials, a feeding pipe 0208 and a second air source delivery mechanism, wherein the bottom of the feeding hopper 020 is connected to a first three-way valve 0603, the first air source delivery mechanism is connected to the first three-way valve 0603 through a second air source delivery channel 0602, and the feeding pipe 0208 which is also connected to the first three-way valve 0603 is connected to the barrel 02.

[0098] The second gas source delivery mechanism is connected to the second gas source delivery channel 0602 and the first gas source delivery channel 0601 through the second three-way valve 06.

[0099] In this embodiment, the second gas source conveying mechanism and the first conveying mechanism described above are the same gas source conveying mechanism 05 or different gas source conveying mechanisms 05 .

[0100] When the second gas source delivery mechanism and the first gas source delivery mechanism use the same gas source delivery mechanism 05 (such as a blower or N 2 When the second three-way valve 06 is switched, the air source delivery mechanism 05 is connected to the second air source delivery channel 0602, and the granular material and other materials are delivered to the barrel 02 through the delivered positive pressure air source; or, the second three-way valve 06 is switched, the air source delivery mechanism 05 is connected to the first air source delivery channel 0601, and the granular material in the barrel 02 is pneumatically or pneumatically mixed through the delivered positive pressure air source. Among them, the same air source delivery mechanism 05 is used as the power source to realize material feeding and cyclic material turning. Pneumatic blowing and material turning are less mechanically worn on plastic particles than spiral friction lifting and material turning, and are not easy to generate fine dust.

[0101] This embodiment is also equipped with a temperature sensor 10, which is arranged at the upper part of the barrel 02, and is used to monitor the working temperature of the granular material.

[0102] This embodiment is also equipped with an upper material level sensor and a lower material level sensor, which are respectively arranged at the upper part of the barrel 02 and the lower part of the barrel 02. The upper material level sensor and the lower material level sensor are used to monitor the material level state of the granular material.

[0103] This embodiment is also equipped with a control box 011, which is installed on the frame 01, and is electrically connected to the microwave drying component, the first three-way valve 0603, the second three-way valve 06, the first gas source conveying mechanism, and the second gas source conveying mechanism. The control box 011 is equipped with a microcomputer and an electrical control switch, which are used to control the coordinated work of the microwave drying component, the first three-way valve 0603, the second three-way valve 06, the first gas source conveying mechanism, and the second gas source conveying mechanism according to a set program.

[0104] Here’s how this application works:

[0105] The first air source delivery mechanism and the second air source delivery mechanism described below are described by taking the use of the same blower as an example.

[0106] The compressed air generated by the blower is used as the power source, and the second three-way valve 06 is used to select whether the air flow flows to the outer feed pipe 0208 of the barrel 02 for loading, or blows to the central blowing pipe 03 for turning the material.

[0107] First, pour the granular material into the hopper 020, switch the second three-way valve 06 to the second air source delivery channel 0602, turn on the blower, and blow the granular material into the barrel 02 through the blowing pipe 03; after the feeding is completed, change the blowing direction of the second three-way valve 06, and guide the airflow to the first air source delivery channel 0601. The airflow blows the bottom granular material to the top through the blowing pipe 03, and the granular material is sprayed to the top with the airflow, collides with the bulk material plate 021, and then falls to the bottom of the barrel 02 and covers it layer by layer, completing the turning of the material from the bottom to the top; while turning the material, the microwave drying component on the top continues to work, emitting microwaves to dry the granular material inside the barrel 02.

[0108] Loading process: Turn the handle 01205 to align the middle part of the rotating disk 01201 with the bottom pipe opening 0204 of the barrel 02. At the same time, the sealing rubber ring 025 on the outside of the bottom pipe opening 0204 of the barrel 02 fits tightly against the bottom surface of the rotating disk 01201 to seal with the outside to prevent air leakage. The second three-way valve 06 connected to the air outlet of the blower is connected to the second air source delivery channel 0602, and pressurized air is blown into the feed pipe 0208 through the first three-way valve 0603. The airflow draws the granular material added to the hopper 020 into the barrel 02, completing the loading process of the granules from the hopper 020 to the barrel 02.

[0109] Drying process: When the pipe opening 0204 at the bottom of the barrel 02 is aligned with the first through hole of the rotating disk 01201 connected to the air inlet U-shaped tube 014, the wind from the blower blows into the barrel 02 from the air source delivery channel 1601 through the air inlet U-shaped tube 014 and the bottom of the barrel, and the granular material at the bottom is blown upward through the barrel, and falls into the barrel 02 when it encounters the bulk material plate 021 at the top of the tube; at the same time, the microwave magnetron 07 works, blowing back and forth to complete the microwave drying process. During the working process, the granular material moves down and turns up layer by layer. Microwaves emit microwaves to the granular material, dynamically and evenly heating the granular material. In the process of the bottom granular material turning up with the wind, the wind cools the granular material again, and after multiple cycles, the drying of the granular material is completed. During the drying process, the granular material is heated and cooled evenly, and there will be no local overheating or insufficient heating.

[0110] The microwave drying and wind-driven turning of the pellets can be performed simultaneously, or the air supply and the working time of the microwave magnetron 07 can be controlled separately according to the set program. The program can appropriately adjust the working time ratio according to the initial temperature conditions and the drying intensity requirements. When the temperature sensor 10 detects that the heating temperature is low, the blower can be adjusted to work intermittently, while the microwave magnetron 07 works all the time. When the set temperature is reached, the microcomputer in the control box 011 automatically controls to reduce the working intensity of the microwave magnetron 07 to prevent the pellets from being overheated. When the heating and drying time reaches the time preset by the program, the control program automatically stops heating and blowing to complete the drying of a cylinder of pellets.

[0111] Discharging process: when the switching mechanism 012 is rotated to align the bottom pipe opening 0204 of the barrel 02 with the second through hole 01203 connected to the discharging pipe 013, the granular material in the barrel 02 falls directly from the feed hole 0301 under the action of gravity, flows out and falls through the discharging pipe 013, and the discharging process is completed.

[0112] It should be understood that, although the terms first, second, third, etc. may be used to describe certain components in the embodiments of the present application, these components should not be limited to these terms. These terms are only used to distinguish the components from each other. For example, without departing from the scope of the embodiments of the present application, the first so-and-so component may also be referred to as the second so-and-so component, and similarly, the second so-and-so component may also be referred to as the first so-and-so component.

[0113] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0114] The above embodiments are only used to illustrate the technical solution of the present application but not to limit it. The present application is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solution of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A material storage and microwave drying integrated machine, characterized in that: include: A barrel for containing granular materials, wherein the barrel is provided with a feeding channel, through which the granular materials in the barrel can be transported; A plurality of microwave drying components are installed on the barrel and perform microwave drying on the granular material in the barrel; and a mixing mechanism, which is installed on the barrel and performs mixing operation on the granular material in the barrel; The mixing mechanism includes a blowing pipe which is transparently arranged at the top and the bottom, a first air source conveying mechanism, a first air source conveying channel and an exhaust outlet arranged on the barrel. The blowing pipe is arranged in the barrel and connected to the bottom of the barrel. A plurality of feeding holes are also arranged on the blowing pipe. The first air source conveying mechanism is connected to the bottom of the blowing pipe through the first air source conveying channel. a top cover for preventing microwaves from leaking from the top of the barrel, wherein the top cover is arranged on the top of the exhaust outlet; The top cover is also connected to a bulk material tray via a connecting rod, wherein the bulk material tray is arranged close to the top of the mixing mechanism; The blowing tube is also provided with a cover, which is arranged near the bottom of the blowing tube and above the feeding hole. The cover is detachably connected to the blowing tube and can slide up and down along the blowing tube. The blowing tube is also provided with a protruding structure, wherein the protruding structure is arranged between the feeding hole and the cover.

2. The material storage and microwave drying integrated machine according to claim 1, characterized in that: The mixing mechanism is mounted on the barrel via a switching mechanism, wherein the switching mechanism is rotatably connected to the barrel.

3. The material storage and microwave drying integrated machine according to claim 2, characterized in that: The switching mechanism comprises: a rotating disk and a rotating assembly arranged on the rotating disk, and the rotating disk is arranged to fit the bottom pipe opening of the barrel; One end of the rotating assembly is attached to the bottom of the barrel, and the other end of the rotating assembly is mounted on the frame; the rotating disk is also provided with a first through hole connected to the first air source delivery channel and a second through hole connected to the discharge pipe.

4. The material storage and microwave drying integrated machine according to claim 3, characterized in that: The rotating assembly includes a linear bearing and a rotating shaft, wherein the linear bearing is mounted on the rotating disk, and the rotating shaft is inserted into the linear bearing, wherein one end of the rotating shaft is attached to the bottom of the barrel, and the other end of the rotating shaft is mounted on the frame; wherein the linear bearing can also be replaced by a bushing.

5. The material storage and microwave drying integrated machine according to claim 4, characterized in that: The rotating shaft is also provided with a limiting piece, through which the rotating shaft is fitted with the bottom of the barrel.

6. The material storage and microwave drying integrated machine according to claim 4, characterized in that: The rotating shaft is also covered with a compression spring.

7. The integrated material storage and microwave drying machine according to any one of claims 3 to 6, characterized in that: The rotating disk is a fan-shaped rotating disk structure.

8. The integrated material storage and microwave drying machine according to any one of claims 3 to 6, characterized in that: The outer periphery of the rotating disk is also provided with a vertical edge to prevent the granular material from scattering.

9. The integrated material storage and microwave drying machine according to any one of claims 3 to 6, characterized in that: The rotating disk is fitted with a sealing rubber ring arranged on the outer side of the bottom pipe opening of the barrel.

10. The integrated material storage and microwave drying machine according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: It also includes a feeding mechanism, which is connected to the barrel through the feeding channel.

11. The integrated material storage and microwave drying machine according to claim 10, characterized in that: The feeding mechanism includes a feeding hopper for temporarily storing granular materials, a feeding pipe and a second air source delivery mechanism, wherein a first three-way valve is connected to the bottom of the feeding hopper, the first air source delivery mechanism is connected to the first three-way valve through a second air source delivery channel, and the feeding pipe also connected to the first three-way valve is connected to the barrel.

12. The integrated material storage and microwave drying machine according to claim 11, characterized in that: The second gas source delivery mechanism is connected to the second gas source delivery channel and the first gas source delivery channel respectively through a second three-way valve.

13. The integrated material storage and microwave drying machine according to claim 11, characterized in that: The second gas source conveying mechanism and the first gas source conveying mechanism are the same gas source conveying mechanism or different gas source conveying mechanisms.

14. The integrated material storage and microwave drying machine according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The microwave drying assembly is mounted on the combination hole on the barrel by riveting.

15. The integrated material storage and microwave drying machine according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The microwave drying component comprises: a microwave magnetron and a driving power supply used in conjunction with the microwave magnetron.

16. The integrated material storage and microwave drying machine according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: A reinforcing bracket is also provided on the top of the barrel, and a plurality of threading holes are also provided on the reinforcing bracket.

17. The integrated material storage and microwave drying machine according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The invention also comprises a protective cover which is wrapped around the outer periphery of the microwave drying assembly.

18. The integrated material storage and microwave drying machine according to claim 17, characterized in that: The protective cover is formed by an annular flat plate, an inner skirt and an outer skirt.

19. The integrated material storage and microwave drying machine according to claim 18, characterized in that: The protective cover is arranged around the exhaust outlet arranged on the barrel.

20. The integrated material storage and microwave drying machine according to claim 18, characterized in that: The inner skirt is provided with a plurality of air outlet pipes, which are used to guide the airflow blown out from the top of the barrel to the microwave drying components arranged around; the outer skirt is provided with a plurality of air diffusion holes for dispersing the airflow and heat dissipation to the surroundings.

21. The integrated material storage and microwave drying machine according to claim 1, characterized in that: The bulk material tray is made of glass or ceramic material.

22. The integrated material storage and microwave drying machine according to claim 1, characterized in that: The surface of the bulk material tray is provided with a metal nano coating.

23. The integrated material storage and microwave drying machine according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: A temperature sensor is also included, and the temperature sensor is arranged on the upper part of the barrel.

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