Reciprocating type microwave air drying equipment

Abstract

The invention relates to the technical field of microwave drying, and discloses a reciprocating type microwave air drying device which comprises a supporting assembly, a driving assembly, a drying assembly, a drying assembly and a control assembly, the supporting assembly comprises a bottom plate, and the top of the bottom plate is fixedly connected with a box body and an inner container and provided with a driving mechanism and an adjusting mechanism; the drying assemblies are arranged on the two sides of the inner container and used for providing drying power for materials in the inner container. Pollution of air to materials after being dried is reduced, and the material drying efficiency and quality are improved; when the materials are pushed into the box body to be dried, pushing is stable and labor-saving, position correction is carried out during pushing, collision of the materials in the pushing process is avoided, and safety and stability are improved. And in the drying process, the driving part for driving the materials to enter and exit is isolated, so that the materials are prevented from being polluted by substances volatilized when lubricating oil on the driving part is heated, and the pollution of the materials during drying is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of microwave drying, in particular to a reciprocating microwave air drying device. Background Art

[0002] At present, the traditional drying method is to use infrared heating to dry materials, which is time-consuming, energy-wasting, and unsafe due to open flames. At the same time, due to the inherent standing wave phenomenon of microwaves, rotation or linear motion must be used in microwave drying equipment, that is, relative motion must be generated between the material and the magnetron to achieve uniform heating. This is how rotary and linear tunnel drying equipment came into being.

[0003] The existing drying equipment is inconvenient to control the drying airflow during drying. The volatile substances of the air and the driving components during drying are easy to contaminate the materials, affecting the quality of the dried materials. At the same time, during the feeding operation, the materials are prone to tipping and collision when entering the box. When the outside temperature is low, air is allowed to enter to cool the microwave magnetron. Since the temperature difference of the microwave magnetron is large when cooling, the microwave magnetron heats up and cools down rapidly when cooling and running, which makes the microwave magnetron easy to be damaged. Therefore, a reciprocating microwave air drying equipment is proposed. Summary of the invention

[0004] In order to solve the technical problems that the existing drying equipment is difficult to control the drying airflow during drying, the volatile substances of the air and the driving components during drying are easy to contaminate the materials and affect the quality of the dried materials, and the materials are easy to tip over and collide when entering the box during the feeding operation, the present invention provides a reciprocating microwave air drying equipment.

[0005] The present invention is implemented by the following technical scheme: a reciprocating microwave air drying device, comprising:

[0006] The support assembly includes a bottom plate, a box body and an inner liner are fixedly connected to the top of the bottom plate, and a driving mechanism and an adjusting mechanism are arranged on the top of the bottom plate;

[0007] An exhaust mechanism is arranged on the top of the box body for exhausting the box body, and a waste heat collection mechanism is arranged inside the exhaust mechanism for collecting waste heat in the exhaust gas;

[0008] A channel 1 and side windows arranged on both sides of the channel 1 are arranged on one side of the box body, a filtering mechanism for filtering incoming air is installed at the opening of the side window, a preheating mechanism for preheating the incoming air is installed in the filtering mechanism, and the preheating mechanism is connected to the waste heat collection mechanism;

[0009] Drying components, which are arranged on both sides of the inner tank and are used to provide drying power for the material inside the inner tank;

[0010] The lap joint assembly includes an extension plate, an isolation cover for isolating the driving mechanism when the material is dried is arranged at the bottom of the extension plate, a rotating shaft is rotatably sleeved on one side of the isolation cover, a turning seat is fixedly connected to the outer ring of the rotating shaft, an auxiliary wheel is fixedly connected to the turning seat, a driven unit fixedly connected to the bottom of the extension plate is rotatably sleeved on the rotating shaft, and the driven unit is connected to the adjustment mechanism; a transition groove is arranged at the top of the extension plate, and a pushing unit is fixedly connected to the transition groove;

[0011] The bearing assembly includes a support plate, a groove 1 provided at the bottom of the support plate, two groups of rotating shafts rotatably sleeved on the support plate, a locking tube fixedly connected to the inner wall of the groove 1 and movably sleeved with the rotating shaft, an adjusting tube arranged on one side of the locking tube for driving the rotating shaft to rotate, a push-pull rod arranged on the outer ring of the adjusting tube and capable of being connected to the pushing unit, and a guide tube fixedly connected to the inner wall of the groove 1 and slidably sleeved with the adjusting tube, casters are installed on both ends of the rotating shaft extending out of the support plate, and two groups of parallel correction plates are fixedly connected to the support plate.

[0012] Through the above technical scheme, the bearing assembly is pushed to the top of the supporting assembly, and the bearing assembly is fixed on the supporting assembly, and then the supporting assembly is used to transport the material along channel one to the inner tank inside the box body, the cabinet door located on channel one is closed, and then the material is subjected to microwave drying operation. During drying, the exhaust mechanism is used to control the exhaust speed and exhaust volume, and the external air enters the two sides of the inner tank from the filtering mechanism and is dried by the drying assembly. The dry airflow cools the microwave magnetron on the drying assembly, so that the temperature of the dry airflow is increased and the temperature of the microwave magnetron is reduced at the same time. The heated dry airflow enters the inner tank and dries the material under the joint action of the microwave of the microwave magnetron, and the dried hot and humid airflow is discharged along the exhaust mechanism.

[0013] As a further improvement of the above scheme, the drying assembly includes a side plate arranged between the outer wall of the inner tank and the inner wall of the box body, the side plate is fixedly connected with partitions distributed in sequence, the partition is fixedly connected with an air induction plate distributed obliquely downward, and a microwave unit, a temperature sensor and an airflow sensor are arranged at the bottom of the partition;

[0014] A connecting channel is passed through the lower part of one side of the inner container, and the microwave unit includes a microwave magnetron fixedly connected to the box body, and a waveguide fixedly sleeved with the inner container is fixedly connected to the output end of the microwave magnetron;

[0015] The side plate is fixedly sleeved with two loading frames distributed in sequence along its length direction, two hooks of L-shaped structure are fixedly connected to the outer walls of both sides of the loading frame, a supporting frame of annular structure is slidably sleeved at the opening of the loading frame, a drying bag is fixedly sleeved on the inner circle of the supporting frame, and two draw ropes connected to the hooks are connected to the outer side of the supporting frame.

[0016] As a further improvement of the above scheme, the inner ring of the adjusting tube is fixedly connected with an adjusting rod, the outer ring of the rotating shaft is provided with an extrusion groove 1 of a spiral structure, both ends of the extrusion groove 1 are provided with a retaining groove 1 arranged along the length direction of the rotating shaft, and the extrusion groove 1 and the retaining groove 1 are both slidably connected with the adjusting rod;

[0017] The end of the adjusting tube extending into the guide tube is fixedly connected with a spring fixed to an inner wall of the groove. The cross-section of the outer ring of the adjusting tube is consistent with the cross-section of the inner ring of the guide tube and both are regular polygonal structures. The adjusting tube and the locking tube are connected by a tooth and groove method. Balls are slidably sleeved on the side where the two sets of correction plates are close to each other and on the bottom of the support plate.

[0018] As a further improvement of the above scheme, the driving mechanism includes a first installation groove and a second installation groove opened on the bottom plate, the first installation groove is connected to a screw rod through a bearing seat, the screw rod is connected to a screw rod seat fixed to the bottom of the extension plate, the second installation groove is fixed to a slide rail, and the slide rail is slidably sleeved with a slider fixed to the bottom of the extension plate; a motor fixed to the bottom plate is installed at one end of the screw rod extending out of the bottom plate, and an air release pipe fixed to the bottom plate is installed on one side of the screw rod;

[0019] The adjustment mechanism includes an installation groove three opened at the bottom of the base plate, an inner side wall of the installation groove three is provided with an inclined extrusion groove two, both ends of the extrusion groove two are provided with retaining grooves two arranged along the length direction of the installation groove three, and the extrusion groove two and the retaining groove two are both slidably connected to the driven unit.

[0020] As a further improvement of the above-mentioned scheme, the driven unit includes a storage box fixed at the bottom of the extension plate and rotatably sleeved with the rotating shaft, a gear fixedly sleeved with the rotating shaft is arranged inside the storage box, one side of the gear is meshed with a rack slidably connected to the inner wall of the storage box, an extension rod is fixedly connected to the side of the rack away from the gear, and the end of the extension rod extending out of the storage box is fixedly connected to an L-shaped bracket slidably connected to the adjustment mechanism.

[0021] As a further improvement of the above scheme, the pushing unit includes an adjustment block fixedly connected to the top of the transition groove, and the adjustment block is provided with retaining groove three, extrusion groove three and retaining groove four in sequence, retaining groove three and retaining groove four are both arranged along the length direction of the adjustment block, extrusion groove three is inclined, and extrusion groove three, retaining groove three and retaining groove four are slidably connected to the push-pull rod.

[0022] As a further improvement of the above scheme, the exhaust mechanism includes an exhaust duct fixedly sleeved on the top of the box body and connected to the interior of the inner tank, the top inner circle of the exhaust duct is fixedly connected to a fixing frame, the fixing frame is fixedly connected to an exhaust fan, the outer circle of the exhaust duct is fixedly sleeved with a supporting ring, the outer circle of the support ring is fixedly connected to an air regulating duct fixed to the top of the box body, the outer circle of the air regulating duct is slidably sleeved with an exhaust hood with an opening at the bottom, the top inner wall of the exhaust hood is equipped with a driving unit fixed to the supporting ring, the outer wall of the exhaust hood is penetrated by circumferentially distributed exhaust outlets, and a protective net is installed at the exhaust outlet openings.

[0023] As a further improvement of the above scheme, the waste heat collection mechanism includes a heat conductive coil 1 arranged inside the exhaust mechanism, the preheating mechanism includes a heat conductive coil 2 arranged inside the filtering mechanism, one end of the heat conductive coil 1 is connected to one end of the heat conductive coil 2 through a pipe 1, and the other end of the heat conductive coil 1 is connected to the other end of the heat conductive coil 2 through a pipe 2, a water pump is installed on the pipe 1, and cabinet doors are hinged on both sides of the opening of the channel 1.

[0024] As a further improvement of the above-mentioned scheme, the filtering mechanism includes a side cabinet door arranged at the side window opening, the side cabinet door is fixedly connected to a loading frame with an annular structure, the outer side walls of both sides of the loading frame are fixedly connected to a hook with an L-shaped structure, a support frame with an annular structure is slidably sleeved at the opening of the loading frame, a filter net is fixedly sleeved on the inner circle of the support frame, a pull rope connected to the hook is connected to the outer side of the support frame, an air inlet passes through the side cabinet door, a slide plate hinged to the side cabinet door is provided on one side of the loading frame, and the slide plate is slidably connected to the top of the bottom plate, a cross bar is fixedly connected to one side of the slide plate, a slide plate arranged parallel to the slide plate is fixedly connected to the other end of the cross bar, and the slide plate is slidably connected to the top of the bottom plate, and the end of the slide plate close to the side cabinet door is threadedly sleeved with a tensioning rod sleeved with the side cabinet door.

[0025] As a further improvement of the above solution, a positioning hole for limiting the support plate is reserved at the top of the extension plate, a baffle is fixedly connected to the top of the extension plate, and inclined correction grooves are opened at both ends of the other side of the top of the extension plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention filters and dries the airflow entering the box, reducing the pollution of the air to the material after entering the drying process. At the same time, the incoming dry airflow can be used to cool the microwave magnetron to protect the safety of the microwave magnetron, and the dry airflow can be heated to improve the drying efficiency, thereby improving the drying efficiency and quality of the material.

[0028] 2. The present invention adopts a combined design. When the material is pushed into the drying box, the pushing is smooth and labor-saving. The position is corrected during pushing to avoid collision during the pushing process of the material. At the same time, the material is auxiliary supported to avoid the dumping of the material tray, thereby improving safety and stability.

[0029] 3. The present invention isolates the driving components that drive the material in and out during the drying process to prevent the lubricating oil on the driving components from volatile substances contaminating the material during heating, thereby realizing the reciprocating motion drying operation of the material and reducing the contamination of the material during drying.

[0030] 4. The present invention realizes the recovery and utilization of waste heat in the exhaust gas, so that the temperature of the gas entering the box for drying will not be too low. It is particularly suitable for preheating the intake air when the outside temperature is low. At the same time, it also avoids the situation where the microwave magnetron is cooled down due to excessive temperature difference when the lower airflow cools down the microwave magnetron, which causes the microwave magnetron to be damaged, thereby saving energy and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a reciprocating microwave air drying device provided by the present invention;

[0032] Figure 2 A schematic structural diagram of a reciprocating microwave air drying device provided by the present invention;

[0033] Figure 3 A schematic diagram of the structure of the drying component provided by the present invention;

[0034] Figure 4 A schematic diagram of the structure of the support assembly provided by the present invention;

[0035] Figure 5 A schematic diagram of the structure of the extension plate provided by the present invention;

[0036] Figure 6 A schematic diagram of the structure of the top of the extension plate provided by the present invention;

[0037] Figure 7 A schematic diagram of the structure of the bottom of the support plate provided by the present invention;

[0038] Figure 8 A side view of the overlapping mechanism provided by the present invention;

[0039] Fig. 9 A schematic diagram of the structure of the filtering mechanism provided by the present invention;

[0040] Fig.10 This is a schematic structural diagram of the exhaust mechanism provided by the present invention.

[0041] Description of main symbols:

[0042] 1. Support assembly; 2. Box; 3. Inner tank; 4. Drying assembly; 5. Filter mechanism; 6. Cabinet door; 7. Exhaust mechanism; 8. Carrying assembly; 9. Placement rack; 11. Bottom plate; 12. Installation slot 1; 13. Installation slot 2; 14. Screw rod; 15. Slide rail; 16. Installation slot 3; 21. Extension plate; 22. Isolation cover; 23. Rotation shaft; 24. Driven unit; 25. Turning seat; 26. Auxiliary wheel; 241. Storage box; 242. Gear; 243. Rack; 244. Extension rod; 245. Bracket; 31. Baffle; 32. Correction slot; 33. Transition slot; 34. Adjustment block; 35. Retention slot 3; 36. Extrusion slot 3; 37. Retention slot 4; 38. Positioning hole; 41. Side plate; 42 , partition; 43, microwave unit; 44, draft plate; 45, loading frame two; 46, hook two; 47, support frame two; 48, pull rope two; 49, drying bag; 51, side cabinet door; 52, loading frame one; 53, hook one; 54, support frame one; 55, pull rope one; 56, filter screen; 57, cross bar; 58, slide plate one; 59, slide plate two; 510, tension rod; 511, air inlet; 71, exhaust duct; 72, fixing frame; 73, exhaust fan; 74, support ring; 75, air adjustment duct; 76, exhaust hood; 77, drive unit; 81, support plate; 82, groove one; 83, correction plate; 84, rotating shaft; 85, locking tube; 86, adjustment tube; 87, guide tube; 88, push-pull rod; 89, caster. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0044] Embodiment 1:

[0045] Please combine Figures 1 to 10 , a reciprocating microwave air drying device of this embodiment includes:

[0046] The support assembly 1 comprises a bottom plate 11, a box body 2 and an inner container 3 are fixedly connected to the top of the bottom plate 11, and a driving mechanism and an adjusting mechanism are arranged on the top of the bottom plate 11;

[0047] An exhaust mechanism 7 is arranged on the top of the box body 2 for exhausting the box body 2, and a waste heat collection mechanism for collecting waste heat in the exhaust gas is arranged inside the exhaust mechanism 7;

[0048] One side of the box body 2 is provided with a channel 1 and side windows arranged on both sides of the channel 1, a filtering mechanism for filtering the incoming air is installed at the opening of the side window, a preheating mechanism for preheating the incoming air is installed in the filtering mechanism, and the preheating mechanism is connected to the waste heat collection mechanism;

[0049] Drying components 4, which are arranged on both sides of the inner container 3 and are used to provide drying power for the material inside the inner container 3;

[0050] The lap joint assembly includes an extension plate 21, an isolation cover 22 for isolating the driving mechanism when the material is dried is arranged at the bottom of the extension plate 21, a rotating shaft 23 is rotatably sleeved on one side of the isolation cover 22, a flip seat 25 is fixedly connected to the outer ring of the rotating shaft 23, an auxiliary wheel 26 is fixedly connected to the flip seat 25, a driven unit 24 fixedly connected to the bottom of the extension plate 21 is rotatably sleeved on the rotating shaft 23, and the driven unit 24 is connected to the adjustment mechanism; a transition groove 33 is opened at the top of the extension plate 21, and a pushing unit is fixedly connected to the transition groove 33;

[0051] The bearing assembly 8 includes a support plate 81, a groove 82 provided at the bottom of the support plate 81, two sets of rotating shafts 84 rotatably sleeved on the support plate 81, a locking tube 85 fixedly connected to the inner wall of the groove 82 and movably sleeved with the rotating shaft 84, an adjusting tube 86 arranged on one side of the locking tube 85 for pushing the rotating shaft 84 to rotate, a push-pull rod 88 arranged on the outer ring of the adjusting tube 86 and capable of being connected to the pushing unit, and a guide tube 87 fixedly connected to the inner wall of the groove 82 and slidably sleeved with the adjusting tube 86, both ends of the rotating shaft 84 extending out of the support plate 81 are equipped with casters 89, and the support plate 81 is fixedly connected to two sets of parallel correction plates 83.

[0052] The implementation principle of a reciprocating microwave air drying device in the embodiment of the present application is as follows: the bearing assembly 8 is pushed to the top of the supporting assembly 1, and the bearing assembly 8 is fixed on the supporting assembly 1, and then the supporting assembly 1 is used to transport the material along the channel 1 to the inner tank 3 inside the box body 2, the cabinet door 6 located on the channel 1 is closed, and then the material is subjected to microwave drying operation, and the exhaust mechanism 7 is used to control the exhaust speed and exhaust volume during drying, and the outside air enters the two sides of the inner tank 3 from the filtering mechanism 5 and is dried by the drying assembly 4, and the dry airflow cools the microwave magnetron on the drying assembly 4, so that the temperature of the dry airflow is increased and the temperature of the microwave magnetron is reduced at the same time, and the heated dry airflow enters the inner tank 3 and dries the material under the joint action of the microwave of the microwave magnetron, and the dried hot and humid airflow is discharged along the exhaust mechanism 7.

[0053] Embodiment 2:

[0054] The drying assembly 4 includes a side plate 41 disposed between the outer wall of the inner container 3 and the inner wall of the box body 2, the side plate 41 is fixedly connected with partitions 42 distributed in sequence, the partitions 42 are fixedly connected with air induction plates 44 distributed obliquely downward, and a microwave unit 43, a temperature sensor and an airflow sensor are disposed at the bottom of the partition 42;

[0055] A connecting passage is passed through the lower part of one side of the inner container 3. The microwave unit 43 includes a microwave magnetron fixedly connected to the box body 2. The output end of the microwave magnetron is fixedly connected to a waveguide fixedly sleeved with the inner container 3.

[0056] The side plate 41 is fixedly sleeved with loading frames 45 distributed in sequence along its length direction, and the outer side walls of both sides of the loading frame 45 are fixedly connected with hooks 46 of L-shaped structure, and the opening of the loading frame 45 is slidably sleeved with a supporting frame 47 of annular structure, and the inner circle of the supporting frame 47 is fixedly sleeved with a drying bag 49, and the outer side of the supporting frame 47 is connected with a draw rope 48 connected to the hook 46.

[0057] Embodiment 3:

[0058] The inner circle of the adjusting tube 86 is fixed with an adjusting rod, the outer circle of the rotating shaft 84 is provided with an extrusion groove 1 of a spiral structure, both ends of the extrusion groove 1 are provided with a retaining groove 1 arranged along the length direction of the rotating shaft 84, and the extrusion groove 1 and the retaining groove 1 are both slidably connected with the adjusting rod;

[0059] The end of the adjusting tube 86 extending into the guide tube 87 is fixedly connected to a spring fixed to the inner wall of the groove 82. The cross-section of the outer ring of the adjusting tube 86 is consistent with the cross-section of the inner ring of the guide tube 87 and both are regular polygonal structures. The adjusting tube 86 and the locking tube 85 are connected by a tooth and groove method. Balls are slidably sleeved on the side where the two sets of correction plates 83 are close to each other and on the bottom of the support plate 81.

[0060] Embodiment 4:

[0061] The driving mechanism includes a mounting groove 12 and a mounting groove 2 13 provided on the bottom plate 11. The mounting groove 12 is connected to a screw rod 14 through a bearing seat. The screw rod 14 is connected to a screw rod seat fixed to the bottom of the extension plate 21. The mounting groove 2 13 is fixed to a slide rail 15. The slide rail 15 is slidably sleeved with a slider fixed to the bottom of the extension plate 21. A motor fixed to the bottom plate 11 is installed at one end of the screw rod 14 extending out of the bottom plate 11, and an air release pipe fixed to the bottom plate 11 is installed on one side of the screw rod 14.

[0062] The adjustment mechanism includes an installation groove 3 16 opened at the bottom of the base plate 11, and the inner wall of the installation groove 3 16 is provided with an inclined extrusion groove 2, and both ends of the extrusion groove 2 are provided with a retaining groove 2 set along the length direction of the installation groove 3 16, and the extrusion groove 2 and the retaining groove 2 are both slidably connected to the bracket 245 of the driven unit 24.

[0063] Embodiment 5:

[0064] The driven unit 24 includes a storage box 241 fixed to the bottom of the extension plate 21 and rotatably sleeved with the rotating shaft 23, a gear 242 fixedly sleeved with the rotating shaft 23 is arranged inside the storage box 241, a rack 243 slidably connected to the inner wall of the storage box 241 is meshed on one side of the gear 242, an extension rod 244 is fixedly connected to the side of the rack 243 away from the gear 242, and an L-shaped bracket 245 slidably connected to the adjustment mechanism is fixedly connected to the end of the extension rod 244 extending out of the storage box 241.

[0065] The pushing unit includes an adjustment block 34 fixedly connected to the top of the transition groove 33, and the adjustment block 34 is provided with a retaining groove three 35, an extrusion groove three 36 and a retaining groove four 37 in sequence, the retaining groove three 35 and the retaining groove four 37 are both arranged along the length direction of the adjustment block 34, the extrusion groove three 36 is arranged obliquely, and the extrusion groove three 36, the retaining groove three 35 and the retaining groove four 37 are slidably connected to the push-pull rod 88.

[0066] Embodiment 6:

[0067] The exhaust mechanism 7 includes an exhaust pipe 71 fixedly sleeved on the top of the box body 2 and connected to the inside of the liner 3, a fixing frame 72 is fixedly connected to the inner circle of the top of the exhaust pipe 71, an exhaust fan 73 is fixedly connected to the fixing frame 72, a support ring 74 is fixedly sleeved on the outer circle of the exhaust pipe 71, an air regulating pipe 75 fixedly connected to the top of the box body 2 is fixedly connected to the outer circle of the support ring 74, an exhaust hood 76 with an opening at the bottom is slidably sleeved on the outer circle of the air regulating pipe 75, a driving unit 77 fixedly connected to the support ring 74 is installed on the inner side wall of the top of the exhaust hood 76, an exhaust port distributed circumferentially is penetrated on the outer side wall of the exhaust hood 76, and a protective net is installed at the opening of the exhaust port;

[0068] The waste heat collection mechanism includes a heat-conducting coil 1 arranged inside the exhaust mechanism 7, and the heat-conducting coil 1 is arranged in the inner circle of the exhaust pipe 71. The preheating mechanism includes a heat-conducting coil 2 arranged inside the filtering mechanism 5, and the heat-conducting coil 2 is arranged in the inner circle of the loading frame 1 52. One end of the heat-conducting coil 1 is connected to one end of the heat-conducting coil 2 through a pipe 1, and the other end of the heat-conducting coil 1 is connected to the other end of the heat-conducting coil 2 through a pipe 2. A water pump is installed on the pipe 1. The outer circles of the heat-conducting coil 1 and the heat-conducting coil 2 are fixedly connected with heat-conducting fins, and cabinet doors 6 are hinged on both sides of the opening of the channel 1.

[0069] The filtering mechanism 5 includes a side cabinet door 51 arranged at the opening of the side window, the side cabinet door 51 is fixedly connected with a loading frame 52 of an annular structure, the outer side walls of the loading frame 52 on both sides are fixedly connected with hooks 53 of L-shaped structure, a supporting frame 54 of an annular structure is slidably sleeved at the opening of the loading frame 52, a filter net 56 is fixedly sleeved on the inner circle of the supporting frame 54, a pull rope 55 connected with the hook 53 is connected to the outer side of the supporting frame 54, an air inlet 511 passes through the side cabinet door 51, a slide plate 58 hinged to the side cabinet door 51 is arranged on one side of the loading frame 52, and the slide plate 58 is slidably connected to the top of the bottom plate 11, a cross bar 57 is fixedly connected to one side of the slide plate 58, a slide plate 59 arranged parallel to the slide plate 58 is fixedly connected to the other end of the cross bar 57, and the slide plate 59 is slidably connected to the top of the bottom plate 11, and a tension rod 510 sleeved with the side cabinet door 51 is threadedly sleeved on one end of the slide plate 59 close to the side cabinet door 51;

[0070] A positioning hole 38 for limiting the support plate 81 is reserved at the top of the extension plate 21 , a baffle 31 is fixedly connected to the top of the extension plate 21 , and two ends of the other side of the top of the extension plate 21 are provided with inclined correction grooves 32 .

[0071] Embodiment 7:

[0072] A placement rack 9 for placing materials is provided on the top of the support plate 81, a solenoid valve is installed on the air release pipe, sealing strips are fixedly connected to both sides of the bottom of the isolation cover shell 22, a sealing corrugated plate with a U-shaped structure is fixedly connected to the end of the isolation cover shell 22 away from the channel one, and the corrugated plate is made of elastic rubber material, and a support frame is fixedly connected to the bottom of the bottom plate 11.

[0073] A control box is installed on one side of the box body 2, and a controller is installed inside the control box. A display screen, a power interface, a data interface and a power switch are installed on one side of the control box. The drive unit 77 adopts a push rod motor, and the controller is connected to the solenoid valve, temperature sensor, airflow sensor, motor, push rod motor, display screen, power interface, data interface and power switch.

[0074] Working principle:

[0075] When drying the material, firstly, the material to be dried is placed on a tray for holding. In order to improve the drying efficiency, the tray is provided with air holes for air flow. Then, the tray is placed on a placement rack 9. Thereafter, the bearing assembly 8 placed on the tray and the material is pushed to the top of the support assembly 1, and the bearing assembly 8 is fixed on the support assembly 1. Then, the material is transported to the inner liner 3 inside the box body 2 along the channel 1 by the support assembly 1. The cabinet door 6 located on the channel 1 is closed, and then the material is subjected to microwave drying operation. During drying, the exhaust mechanism 7 is used to control the exhaust speed and exhaust volume. The outside air enters the two sides of the inner liner 3 from the filtering mechanism 5 and is dried by the drying assembly 4. The dry airflow cools down the microwave magnetron on the drying assembly 4, so that the temperature of the dry airflow is increased while the temperature of the microwave magnetron is reduced. The heated dry airflow enters the inner liner 3 and dries the material under the combined action of the microwaves of the microwave magnetron. The dried hot and humid airflow is discharged along the exhaust mechanism 7.

[0076] When the exhaust mechanism 7 is running, the push rod motor is used to push the exhaust hood 76 upward, and the exhaust port of the exhaust hood 76 located at the bottom of the support ring 74 moves upward to above the support ring 74. According to the position of the exhaust port extending above the support ring 74, the air volume discharged from the exhaust port during exhaust is adjusted, and at the same time, the controller controls the speed of the exhaust fan 73, thereby jointly controlling the exhaust speed and flow rate;

[0077] When the exhaust mechanism 7 is started, the inner tank 3 and the box body 2 are in a negative pressure state, and the outside air enters from the air inlet 511 on the side cabinet door 51, and then is filtered by the filter 56 on the support frame 1 54. The filtered gas is dried by the drying bag 49 inside the support frame 2 47. At this time, the dried airflow moves from the inner circle of the loading frame 2 45 to the bottom of the partition 42. The dry airflow takes out the heat generated by the microwave magnetron during operation, cools the microwave magnetron, and heats the dry airflow at the same time. The heated dry airflow enters the inner tank 3 along the connecting channel on the inner tank 3. At the same time, the microwaves generated by the microwave magnetron are transmitted along the waveguide to the material inside the inner tank 3, and the material is heated by microwaves;

[0078] When loading begins, the cabinet door 6 on the box body 2 is opened, and the bearing assembly 8 with the materials and the tray is pushed toward the supporting assembly 1. First, when the support plate 81 is pushed forward, the correction grooves 32 on both sides of the top of the extension plate 21 contact the two sets of correction plates 83 at the bottom of the support plate 81, so that the lateral position of the support plate 81 is finely adjusted when the support plate 81 moves forward. Then, the ball bearings on the two sets of correction plates 83 contact the side edges on both sides of the top of the extension plate 21, and at the same time, the ball bearings at the bottom of the support plate 81 also contact the top of the extension plate 21. When the support plate 81 is pushed forward, the push-pull rod 88 at the bottom of the support plate 81 extends from the opening of the transition groove 33 into the transition groove 33. After the position of the support plate 81 is corrected, as the support plate 81 continues to move forward, the push-pull rod 88 moves along the transition groove 33 to the retaining groove 35 in the adjustment block 34, and then enters the extrusion groove 36. Under the extrusion action of the extrusion groove 36, the push-pull rod 88 can slide relative to the length direction of the rotating shaft 84, driving the adjusting tube 86 to move along the length direction of the rotating shaft 84, first making the adjusting tube 86 move along the length direction of the rotating shaft 84. The joint tube 86 is disengaged from the locking tube 85. At this time, the adjusting rod of the inner ring of the adjusting tube 86 moves along the retaining groove 1 of the outer ring of the rotating shaft 84 toward the extrusion groove 1, ensuring that the rotating shaft 84 does not rotate when the adjusting tube 86 is disengaged from the locking tube 85. Then, when the adjusting rod moves along the extrusion groove 1, the rotating shaft 84 is rotated 90 degrees. When the rotating shaft 84 rotates, the casters 89 at both ends of the rotating shaft 84 are deflected, so that the vertically placed casters 89 are deflected to be placed horizontally and stored at the bottom of the supporting plate 81. The same method as above is used to place the casters 89 on the supporting plate 81. When the plate 81 moves toward the baffle plate 31, the casters 89 at the bottom of the support plate 81 are all turned over and stored, and finally the positioning rod for positioning at the top of the support plate 81 is inserted into the positioning hole 38 at the top of the extension plate 21 by rotating, so as to complete the pushing and limiting operation of the support plate 81. The above method can be used to correct the position of the bearing assembly 8, and the pushing is simple and convenient, and it can also avoid the collision of the two sides and the bottom of the bearing assembly 8 when entering the box body 2, thereby improving the stability and safety of the material in the process of pushing in and out of the drying process;

[0079] When the bearing assembly 8 is pushed and placed on the top of the extension plate 21, the motor located at the end of the screw rod 14 is started, and the screw rod 14 drives the screw rod seat to move, pushing the extension plate 21 to move into the inner tank 3. During the movement, the adjustment mechanism adjusts the driven unit 24, and the bracket 245 on the driven unit 24 moves along the retaining groove 2 to the extrusion groove 2. Under the action of the extrusion groove 2, the bracket 245 moves into the box body 2 while also moving along the vertical direction of the box body 2. The extension rod 244 and the rack 243 both move with the bracket 245. When the rack 243 moves, it drives the gear 242 to rotate, thereby rotating the rotating shaft 23, and then flipping the rotating shaft 23 and the auxiliary wheel 26, so that when the extension plate 21 moves into the box body 2, the auxiliary wheel 26 used for auxiliary support is flipped to avoid the auxiliary wheel 26 from colliding with the box body 2. At the same time, it also provides auxiliary support for the extension plate 21 in the process of extending out of the box body 2, avoiding the extension plate 21 from extending out of the box body 2. When the extension plate 21 is fully moved into the inner tank 3, the end of the isolation cover 22 contacts the side wall of the inner tank 3 for sealing, and a closed space is formed between the isolation cover 22 and the corrugated plate and the bottom of the mounting groove 12, the mounting groove 2 13 and the side wall of the inner tank 3, so that the screw rod 14 and the slide rail 15 are isolated from the box body 2. When the screw rod 14 drives the bearing assembly 8 to reciprocate in a small range, the corrugated plate made of elastic rubber material is used to achieve sealing during the short-stroke movement of the isolation cover 22, ensuring that the screw rod 14 and the slide rail 15 are always in a sealed and isolated state during reciprocating drying. When drying and heating, the volatile components of the lubricating oil on the screw rod 14 and the slide rail 15 are isolated, and ventilated and discharged from the inside of the box body 2 through the vent pipe and the air inlet pipe, so as to avoid the volatile substances from contaminating the dried materials, and also achieve reciprocating drying of the materials.

[0080] When the filter 56 and the drying bag 49 are to be replaced during use, the pull rope 1 55 is removed from the hook 1 53, the pull rope 2 48 is removed from the hook 2 46, and then the support frame 2 47 and the support frame 1 54 are removed to achieve disassembly, and then the unused parts are replaced by the reverse steps;

[0081] At the same time, when exhausting, the preheating collection mechanism collects the residual heat in the hot air exhausted from the exhaust pipe 71, and then transports it to the heat conducting coil 2 through the heat conducting medium, and then conducts heat to the intake air flow of the channel 1 through the heat conducting coil 2, so as to realize the recycling of the residual heat in the tail gas, so that the temperature of the gas entering the box 2 for drying will not be too low, which is particularly suitable for preheating the intake air when the outside temperature is low, and also avoids the situation that the microwave magnetron is damaged due to excessive temperature difference when the low airflow is used to cool the microwave magnetron, thereby saving energy and improving efficiency;

[0082] The invention first filters and dries the airflow entering the box, thereby reducing the pollution of the air to the material after entering the drying chamber. Meanwhile, the microwave magnetron can be cooled by the dry airflow entering the box, thereby protecting the safety of the microwave magnetron. The dry airflow is heated, thereby improving the drying efficiency and the drying efficiency and quality of the material. The combined design is adopted, so that when the material is pushed into the box for drying, the pushing is smooth and labor-saving, and the position is corrected during the pushing process to avoid collision during the pushing process of the material. Meanwhile, the material is auxiliary supported to avoid the dumping of the material tray, thereby improving the safety and stability. During the drying process, the driving components for driving the material in and out are isolated, thereby preventing the lubricating oil on the driving components from volatile substances during heating from contaminating the material, thereby realizing the reciprocating drying operation of the material and reducing the pollution of the material during drying. The waste heat in the tail gas is recycled, thereby preventing the temperature of the gas entering the box for drying from being too low. The invention is particularly suitable for preheating the intake air when the outside temperature is low, thereby preventing the microwave magnetron from being damaged due to excessive temperature difference when the low airflow is used to cool the microwave magnetron, thereby saving energy and improving efficiency.

[0083] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A reciprocating microwave air drying device, characterized in that: include: The support assembly includes a bottom plate, a box body and an inner liner are fixedly connected to the top of the bottom plate, and a driving mechanism and an adjusting mechanism are arranged on the top of the bottom plate; An exhaust mechanism is arranged on the top of the box body for exhausting the box body, and a waste heat collection mechanism is arranged inside the exhaust mechanism for collecting waste heat in the exhaust gas; A channel 1 and side windows arranged on both sides of the channel 1 are arranged on one side of the box body, a filtering mechanism for filtering incoming air is installed at the opening of the side window, a preheating mechanism for preheating the incoming air is installed in the filtering mechanism, and the preheating mechanism is connected to the waste heat collection mechanism; Drying components, which are arranged on both sides of the inner tank and are used to provide drying power for the material inside the inner tank; The lap joint assembly includes an extension plate, an isolation cover for isolating the driving mechanism when the material is dried is arranged at the bottom of the extension plate, a rotating shaft is rotatably sleeved on one side of the isolation cover, a turning seat is fixedly connected to the outer ring of the rotating shaft, an auxiliary wheel is fixedly connected to the turning seat, a driven unit fixedly connected to the bottom of the extension plate is rotatably sleeved on the rotating shaft, and the driven unit is connected to the adjustment mechanism; a transition groove is arranged at the top of the extension plate, and a pushing unit is fixedly connected to the transition groove; The bearing assembly includes a support plate, a groove 1 provided at the bottom of the support plate, two groups of rotating shafts rotatably sleeved on the support plate, a locking tube fixedly connected to the inner wall of the groove 1 and movably sleeved with the rotating shaft, an adjusting tube arranged on one side of the locking tube for driving the rotating shaft to rotate, a push-pull rod arranged on the outer ring of the adjusting tube and capable of being connected to the pushing unit, and a guide tube fixedly connected to the inner wall of the groove 1 and slidably sleeved with the adjusting tube, casters are installed on both ends of the rotating shaft extending out of the support plate, and two groups of parallel correction plates are fixedly connected to the support plate.

2. A reciprocating microwave air drying device as claimed in claim 1, characterized in that: The drying assembly comprises a side plate arranged between the outer wall of the inner container and the inner wall of the box body, the side plate is fixedly connected with partitions distributed in sequence, the partition is fixedly connected with air induction plates distributed obliquely downward, and a microwave unit, a temperature sensor and an airflow sensor are arranged at the bottom of the partition; A connecting channel is passed through the lower part of one side of the inner container, and the microwave unit includes a microwave magnetron fixedly connected to the box body, and a waveguide fixedly sleeved with the inner container is fixedly connected to the output end of the microwave magnetron; The side plate is fixedly sleeved with two loading frames distributed in sequence along its length direction, two hooks of L-shaped structure are fixedly connected to the outer walls of both sides of the loading frame, a supporting frame of annular structure is slidably sleeved at the opening of the loading frame, a drying bag is fixedly sleeved on the inner circle of the supporting frame, and two draw ropes connected to the hooks are connected to the outer side of the supporting frame.

3. A reciprocating microwave air drying device as claimed in claim 1, characterized in that: The inner ring of the adjusting tube is fixedly connected with an adjusting rod, the outer ring of the rotating shaft is provided with an extrusion groove 1 of a spiral structure, both ends of the extrusion groove 1 are provided with a retaining groove 1 arranged along the length direction of the rotating shaft, and the extrusion groove 1 and the retaining groove 1 are both slidably connected with the adjusting rod; The end of the adjusting tube extending into the guide tube is fixedly connected with a spring fixed to an inner wall of the groove. The cross-section of the outer ring of the adjusting tube is consistent with the cross-section of the inner ring of the guide tube and both are regular polygonal structures. The adjusting tube and the locking tube are connected by a tooth and groove method. Balls are slidably sleeved on the side where the two sets of correction plates are close to each other and on the bottom of the support plate.

4. A reciprocating microwave air drying device as claimed in claim 1, characterized in that: The driving mechanism comprises a first mounting groove and a second mounting groove which are provided on the bottom plate, wherein the first mounting groove is connected to a screw rod through a bearing seat, the screw rod is connected to a screw rod seat fixedly connected to the bottom of the extension plate, the second mounting groove is fixedly connected to a slide rail, and the slide rail is slidably sleeved with a slider fixedly connected to the bottom of the extension plate; a motor fixedly connected to the bottom plate is installed at one end of the screw rod extending out of the bottom plate, and an air release pipe fixedly connected to the bottom plate is installed at one side of the screw rod; The adjustment mechanism includes an installation groove three opened at the bottom of the base plate, an inner side wall of the installation groove three is provided with an inclined extrusion groove two, both ends of the extrusion groove two are provided with retaining grooves two arranged along the length direction of the installation groove three, and the extrusion groove two and the retaining groove two are both slidably connected to the driven unit.

5. A reciprocating microwave air drying device as claimed in claim 1, characterized in that: The driven unit includes a storage box fixed to the bottom of the extension plate and rotatably sleeved with the rotating shaft, a gear fixedly sleeved with the rotating shaft is arranged inside the storage box, a rack slidably connected to the inner wall of the storage box is meshed on one side of the gear, an extension rod is fixedly connected to the side of the rack away from the gear, and an L-shaped bracket slidably connected to the adjustment mechanism is fixedly connected to one end of the extension rod extending out of the storage box.

6. A reciprocating microwave air drying device as claimed in claim 1, characterized in that: The pushing unit includes an adjustment block fixedly connected to the top of the transition groove, and the adjustment block is provided with a retaining groove three, an extrusion groove three and a retaining groove four in sequence. The retaining groove three and the retaining groove four are both arranged along the length direction of the adjustment block, the extrusion groove three is arranged obliquely, and the extrusion groove three, the retaining groove three and the retaining groove four are slidably connected to the push-pull rod.

7. A reciprocating microwave air drying device as claimed in claim 1, characterized in that: The exhaust mechanism includes an exhaust duct fixedly sleeved on the top of the box body and connected to the interior of the inner tank, a fixing frame fixedly connected to the inner circle of the top of the exhaust duct, an exhaust fan fixedly connected to the fixing frame, a supporting ring fixedly sleeved on the outer circle of the exhaust duct, an air regulating duct fixed to the top of the box body on the outer circle of the supporting ring, an exhaust hood with an opening at the bottom slidably sleeved on the outer circle of the air regulating duct, a driving unit fixedly connected to the supporting ring is installed on the inner wall of the top of the exhaust hood, circumferentially distributed exhaust outlets are penetrated through the outer wall of the exhaust hood, and a protective net is installed at the opening of the exhaust outlet.

8. A reciprocating microwave air drying device as claimed in claim 1, characterized in that: The waste heat collection mechanism includes a heat-conducting coil 1 arranged inside the exhaust mechanism, and the preheating mechanism includes a heat-conducting coil 2 arranged inside the filtering mechanism. One end of the heat-conducting coil 1 is connected to one end of the heat-conducting coil 2 through a pipe 1, and the other end of the heat-conducting coil 1 is connected to the other end of the heat-conducting coil 2 through a pipe 2. A water pump is installed on the pipe 1, and cabinet doors are hinged on both sides of the opening of the channel 1.

9. A reciprocating microwave air drying device as claimed in claim 8, characterized in that: The filtering mechanism includes a side cabinet door arranged at the side window opening, the side cabinet door is fixedly connected to a loading frame with an annular structure, the outer side walls of both sides of the loading frame are fixedly connected to a hook with an L-shaped structure, a supporting frame with an annular structure is slidably sleeved at the opening of the loading frame, a filter net is fixedly sleeved on the inner circle of the supporting frame, a pull rope connected to the hook is connected to the outer side of the supporting frame, an air inlet passes through the side cabinet door, a slide plate hinged to the side cabinet door is arranged on one side of the loading frame, and the slide plate is slidably connected to the top of the bottom plate, a cross bar is fixedly connected to one side of the slide plate, a slide plate second arranged parallel to the slide plate one is fixedly connected to the other end of the cross bar, and the slide plate second is slidably connected to the top of the bottom plate, and one end of the slide plate second close to the side cabinet door is threadedly sleeved with a tensioning rod sleeved with the side cabinet door.

10. The reciprocating microwave air drying device according to claim 1, characterized in that: A positioning hole for limiting the support plate is reserved on the top of the extension plate, a baffle is fixedly connected to the top of the extension plate, and two ends of the other side of the top of the extension plate are provided with inclined correction grooves.

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