Material drying device

Abstract

The utility model discloses a material drying device which comprises a shell, a material carrier, a pumping and discharging assembly and an air inlet assembly capable of providing hot air, an air inlet is formed in the shell, a conveying track used for conveying the material carrier is arranged in the shell, the air inlet assembly is communicated with the air inlet, and the pumping and discharging assembly is communicated with the conveying track. A hopper capable of being in butt joint with the material carrier is arranged below the conveying rail, a screen is arranged on the lower portion of the material carrier, and the pumping and discharging assembly comprises a dust removal water bath box communicated with the lower portion of the hopper, a buffering cavity communicated with the dust removal water bath box and at least two vacuumizing components communicated with the buffering cavity. According to the vacuum pumping device, the drying efficiency is improved, the drying time is shortened, the energy consumption is reduced, dust explosion is prevented, even if a single vacuum pumping component breaks down, the pumping and discharging assembly can still work continuously, the reliability is good, and turbulent flow is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to food, medicine packing machinery field especially relates to a material drying device. BACKGROUND

[0002] Part of tiny granular material (material particle size is 250-300 mu m), accumulation is very close, not easy to ventilate, lead to conventional drying mode drying time is particularly long, influence production efficiency, and energy consumption increases greatly, enterprise production cost further rises.In addition, dust particles under the dry state, when extruding friction, easy to explode, further increase the difficulty of drying this kind of material.

[0003] Therefore, the prior application with the application number 202311401960.4 proposes a material drying machine and a drying method thereof.When working, the material carrier enters the shell and is transported to the position through the conveying track, the hopper is connected with the material carrier in an up-down mode, the air inlet assembly provides hot air, the hot air enters the shell through the air inlet, and then sequentially passes through the material in the material carrier, the screen and the hopper from top to bottom, so as to dry the material.The hopper can collect hot air from all directions to ensure that the drying effect of the material is uniform and consistent.The hot air is finally exhausted to the outside through the exhaust assembly, the drying effect is good, the drying efficiency is high, the energy consumption is reduced, and the hot air flows from top to bottom, which is beneficial to preventing dust particles from floating and reducing the risk of explosion.The conveying track can accommodate multiple material carriers at the same time, thereby doubling the drying efficiency.In the technical solution, multiple exhaust assemblies are provided, and each hopper is connected with one of the exhaust assemblies.The exhaust assembly is provided with a single vacuum extraction component (such as a vacuum pump).When a single vacuum extraction component fails, turbulence is easily generated inside the shell, which causes the material to splash and has the risk of explosion. SUMMARY

[0004] The utility model solves the technical problem of overcoming the shortcomings of the prior art and provides a material drying device with simple structure, good reliability and the advantage of avoiding turbulence.

[0005] The utility model further provides a drying method of the above-mentioned material drying device.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model provides a material drying device, including the casing, material carrier, exhaust component and the air inlet component that can provide hot air, the casing is equipped with the air inlet and is equipped with the conveying track for conveying the material carrier in the casing, the air inlet component communicates with the air inlet, the conveying track below is equipped with the hopper that can be connected with the material carrier, the lower part of material carrier is equipped with the screen, the exhaust component includes the dust removal water bath tank that communicates with the lower part of hopper, the buffer cavity that communicates with dust removal water bath tank and at least two vacuum components that communicate with the buffer cavity.

[0008] As the further improvement of the above technical solution: the conveying track is equipped with a plurality of material carriers, each material carrier is connected with the hopper, and the lower part of each hopper is communicated with the dust removal water bath tank.

[0009] As the further improvement of the above technical solution: the dust removal water bath tank includes a tank, a spray pump and a first spray component arranged on the upper part of the tank, the water inlet of the spray pump is communicated with the tank, and the water outlet of the spray pump is communicated with the first spray component.

[0010] As the further improvement of the above technical solution: the upper part of the hopper or the lower part of the material carrier is provided with an air sealing ring.

[0011] As the further improvement of the above technical solution: the conveying track is provided with a lifting component, and the upper part of the hopper or the lower part of the material carrier is provided with a sealing element.

[0012] As the further improvement of the above technical solution: the conveying track is a pipeline structure with water spray holes, or the conveying track is arranged in a water tank.

[0013] As the further improvement of the above technical solution: the air inlet component includes a fan, a primary cold and hot unit and a secondary cold and hot unit, and the fan is arranged between the primary cold and hot unit and the secondary cold and hot unit.

[0014] As the further improvement of the above technical solution: the material carrier is provided with a rolling element matched with the conveying track.

[0015] As the further improvement of the above technical solution: the upper part of the casing is provided with a plurality of second spray components, and the lower part of the casing is provided with a water outlet.

[0016] As the further improvement of the above technical solution: the casing includes an inner casing, an outer casing arranged on the outer periphery of the inner casing, and a heating coil arranged between the inner casing and the outer casing.

[0017] And / or, the inner casing is further provided with a temperature measuring component on one side of the screen.

[0018] And / or, the air pressure of the inner casing is lower than the standard atmospheric pressure.

[0019] Compared with the prior art, the material drying device has the advantages that:

[0020] The material drying device disclosed by the utility model, when working, the material carrier is conveyed to the position after entering the shell through the conveying track, the hopper is connected with the material carrier in an up-down mode, the air inlet assembly provides hot air, the hot air enters the shell through the air inlet and then sequentially passes through the material in the material carrier, the screen and the hopper from top to bottom, so that the material is dried, the hopper can collect hot air in all directions, ensures that the drying effect of the material is uniform and has good consistency, finally, the hot air is exhausted to the outside through the exhaust assembly, the drying effect is good, the drying efficiency is high, the energy consumption is reduced, the hot air flows from top to bottom, which is beneficial to preventing dust particles from floating and reducing the explosion risk, and the overall structure is reasonable and effective; the vacuum extraction component is used for generating vacuum in the dust removal water bath tank and the buffer cavity, so that the hot air from the hopper is extracted into the dust removal water bath tank, the dust removal water bath tank can prevent the dust filtered out of the screen from exploding in the hot air, further improves the safety of the exhaust air, at least two vacuum extraction components are connected with the buffer cavity, even if a single vacuum extraction component fails, the exhaust assembly can still continue to work, has good reliability and is beneficial to avoiding turbulent flow. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the front view structural schematic diagram of the material drying device embodiment one of the utility model.

[0022] Figure 2 is the top view structural schematic diagram of the material drying device embodiment one of the utility model.

[0023] Figure 3 is the side view structural schematic diagram of the material drying device embodiment one of the utility model.

[0024] Figure 4 is Figure 3 the enlarged view of the part.

[0025] Figure 5 is the front view structural schematic diagram of the material carrier in the utility model.

[0026] Figure 6 is the front view structural schematic diagram of the air inlet assembly in the utility model.

[0027] Figure 7 is the front view structural schematic diagram of the material drying device embodiment two of the utility model.

[0028] Figure 8 is the side view structural schematic diagram of the material drying device embodiment two of the utility model.

[0029] Figure 9 is Figure 8is a local enlarged view of

[0030] Figure 10 is a side view structural schematic diagram of the material drying device embodiment three of the utility model.

[0031] Figure 11 is Figure 10 is a local enlarged view of

[0032] The various reference signs in the drawings represent:

[0033] 1, shell; 11, air inlet; 12, second spraying component; 13, water outlet; 14, inner shell; 15, outer shell; 16, heating coil; 2, material carrier; 21, screen; 22, rolling piece; 3, air inlet assembly; 31, fan; 32, primary cold and hot unit; 33, secondary cold and hot unit; 4, pumping and exhausting assembly; 40, pumping and exhausting pipe; 41, dust removal water bath box; 411, box body; 412, spraying pump; 413, first spraying component; 42, vacuum pumping component; 43, buffer cavity; 5, conveying track; 51, lifting component; 52, water tank; 6, hopper; 61, aeration sealing ring; 62, sealing piece; 7, temperature measuring component. DETAILED DESCRIPTION

[0034] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0036] In the utility model, unless another definite provision and limitation, the terms "assemble", "connect", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through intermediate medium, can be the communication or the interaction of two elements of two elements inside. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0037] The utility model is further explained in detail in the following combining with the drawings and specific embodiments of the specification.

[0038] Embodiment one

[0039] Figures 1 to 6 An embodiment of the material drying device of the utility model is shown, the material drying device of this embodiment, including shell 1, material carrier 2, exhaust component 4 and the air intake component 3 that can provide hot air, shell 1 is equipped with air intake 11 and is equipped with the conveying track 5 for conveying material carrier 2 in shell 1, air intake component 3 is communicated with air intake 11, the conveying track 5 below is equipped with the hopper 6 that can be connected with material carrier 2, the lower part of material carrier 2 is equipped with screen 21, exhaust component 4 includes dust removal water bath tank 41 communicated with the lower part of hopper 6, buffer cavity 43 communicated with dust removal water bath tank 41 and at least two vacuum components 42 (for example vacuum pump, vacuum generator etc.) communicated with buffer cavity 43, specifically, hopper 6 and dust removal water bath tank 41 can be communicated through exhaust pipe 40.The height of screen 21 is less than the height of air intake 11, preferably, so that hot air enters material carrier 2 inside;Vacuum component 42 is provided with 3.

[0040] In use, the material carrier 2 enters the housing 1 and is conveyed to the position by the conveying track 5, the hopper 6 is connected to the material carrier 2, the air inlet assembly 3 provides hot air, the hot air enters the housing 1 through the air inlet 11 and then flows from top to bottom through the material in the material carrier 2, the screen 21 and the hopper 6, so as to dry the material, the hopper 6 can collect hot air from all directions, ensure that the drying effect of the material on the screen 21 is uniform and consistent, and finally the hot air is exhausted to the outside through the exhaust assembly 4, the drying effect is good, the drying efficiency is high, the energy consumption is reduced, and the hot air flows from top to bottom, which is beneficial to prevent dust particles from floating and reduce the risk of explosion, and the overall structure is reasonable and effective; the vacuumizing component 42 is used to generate vacuum in the dust removal water bath tank 41 and the buffer cavity 43, so as to suck the hot air from the hopper 6 into the dust removal water bath tank 41, the dust removal water bath tank 41 can prevent the dust filtered from the screen 21 from exploding in the hot air, further improve the safety of the exhaust air, and the buffer cavity 43 is connected with multiple vacuumizing components 42, so that even if a single vacuumizing component 42 fails, the exhaust assembly 4 can still work, and the reliability is good, which is beneficial to avoid turbulence.

[0041] Further, in the embodiment, the conveying track 5 is provided with multiple material carriers 2 (specifically, four material carriers 2, and of course, in other embodiments, the conveying track 5 can be further extended, and correspondingly, the number of material carriers 2 can be further increased), each material carrier 2 is connected with a hopper 6, and the lower part of each hopper 6 is communicated with the dust removal water bath tank 41. The conveying track 5 simultaneously accommodates multiple material carriers 2, and drying is simultaneously performed, so as to double the drying efficiency. Compared with the one-to-one arrangement of the hopper 6 and the exhaust assembly 4, the multiple hoppers 6 share the exhaust assembly 4, which can reduce the number of dust removal water bath tanks 41 and vacuumizing components 42 and the like on the basis of ensuring reliability, and reduce the cost of the device.

[0042] Further, in the embodiment, the dust removal water bath tank 41 includes a tank body 411, a spraying pump 412 and a first spraying component 413 arranged at the upper part of the tank body 411 (the first spraying component 413 preferably adopts a spraying ball, which is beneficial to ensure comprehensive spraying coverage), the water inlet of the spraying pump 412 is communicated with the tank body 411, and the water outlet of the spraying pump 412 is communicated with the first spraying component 413. After the dust filtered from the screen 21 in the hot air enters the tank body 411, the spraying pump 412 delivers spraying water in the tank body 411 to the first spraying component 413, and the first spraying component 413 sprays from the upper part of the tank body 411 to prevent the dust from entering the buffer cavity 43 and the vacuumizing component 42 downstream, which is safe and reliable in structure.

[0043] Further, in the embodiment, the upper part of the hopper 6 is provided with an inflatable sealing ring 61. When the material carrier 2 is moved to the position along the conveying track 5, the inflatable sealing ring 61 is inflated to tightly abut against the lower part of the material carrier 2, so as to realize the sealed butt joint of the hopper 6 and the material carrier 2, and ensure that the hot air flows in the designed direction. After the drying is completed, the inflatable sealing ring 61 is deflated to separate from the material carrier 2, so as to avoid affecting the movement of the material carrier 2 along the conveying track 5. The structure is simple and effective. Of course, in other embodiments, the inflatable sealing ring 61 can also be arranged at the lower part of the material carrier 2, which can also achieve the purpose, and details are not described herein.

[0044] Further, in the embodiment, the conveying track 5 is arranged in the water tank 52. The water in the water tank 52 can be used as a cleaning and lubricating layer of the conveying track 5 to clean and moisten the dust on the conveying track 5, so as to effectively prevent dust friction explosion when the material carrier 2 moves along the conveying track 5, and further ensure the safety.

[0045] Further, in the embodiment, the air inlet assembly 3 includes a fan 31, a first cold and hot unit 32 and a second cold and hot unit 33, and the fan 31 is arranged between the first cold and hot unit 32 and the second cold and hot unit 33. The first cold and hot unit 32 can preheat the air, the fan 31 is used to provide power for the air to increase the flow rate, and the second cold and hot unit 33 can heat the air twice to ensure that the hot air entering the shell 1 reaches the required temperature; after the material is dried, the first cold and hot unit 32 and the second cold and hot unit 33 can also cool the air, so as to introduce cold air into the shell 1 to rapidly cool the material to room temperature. The structure is reasonable and effective.

[0046] Further, in the embodiment, the material carrier 2 is provided with a rolling member 22 matched with the conveying track 5. The rolling member 22 can be a roller, a rolling bearing or the like. The rolling member 22 and the conveying track 5 are in rolling friction, the friction resistance is small, the material carrier 2 moves more smoothly, and it is also convenient to clean the dust on the rolling member 22, so as to further reduce the risk of explosion caused by the dust being squeezed and rubbed.

[0047] Further, in the embodiment, the upper part of the shell 1 is provided with a plurality of second spraying members 12, which can be spraying balls or the like. The second spraying members 12 can periodically clean the dust inside the shell 1 in all directions to prevent dust explosion. The lower part of the shell 1 is provided with a water outlet 13, and the spraying water can flow out from the lower water outlet 13. Preferably, the water outlet 13 is communicated with the dust removal water bath tank 41, and the spraying water carrying the dust can flow into the dust removal water bath tank 41 for collection and treatment.

[0048] Further, in the embodiment, the shell 1 comprises an inner shell 14, an outer shell 15 arranged on the outer periphery of the inner shell 14, and a heating coil 16 arranged between the inner shell 14 and the outer shell 15, the inner shell 14 is further provided with a temperature measuring component 7 on one side of the screen 21, and the air pressure of the inner shell 14 is lower than the standard atmospheric pressure. Hot water or steam can be introduced into the heating coil 16 for heating, so that the inside of the shell 1 quickly reaches the drying temperature, further improves the drying efficiency, and the shell 1 with the sandwich structure has good heat preservation performance, which is beneficial to reducing the heat loss in the inside of the shell 1; the temperature measuring component 7 can be a thermometer or a temperature sensor, etc., which is used for detecting the temperature of the air outlet of the screen 21, so as to ensure the accuracy of the drying temperature and the temperature detection after cooling; the inner shell 14 has a certain vacuum, and the moisture carried by the material is more easily evaporated in the vacuum environment, so that the drying efficiency can be further improved.

[0049] Embodiment two

[0050] Figures 7 to 9 Another embodiment of the material drying device of the utility model is shown, and the material drying device of the embodiment is basically same with the embodiment one, and the difference is that:

[0051] In the embodiment, the conveying track 5 is provided with a lifting component 51 (such as a pneumatic cylinder, an electric cylinder or a screw nut mechanism, etc.), and the upper part of the hopper 6 is provided with a sealing element 62 (such as a commonly used sealing ring, a sealing rubber strip or a sealing gasket, etc.). After the material carrier 2 is moved in place along the conveying track 5, the lifting component 51 drives the conveying track 5 to descend, the material carrier 2 is lowered and the sealing element 62 is pressed tightly, so that the sealing butt joint between the material carrier 2 and the hopper 6 is realized, and the flow direction of the hot air is ensured. After the drying is completed, the lifting component 51 drives the conveying track 5 to rise, the hopper 6 is separated from the material carrier 2, and the movement of the material carrier 2 along the conveying track 5 is avoided, which is simple and effective. Of course, in other embodiments, the sealing element 62 can also be arranged at the lower part of the material carrier 2, and the purpose can also be achieved.

[0052] Further, in the embodiment, the conveying track 5 is a pipeline structure with a water spraying hole (not shown in the figure). The pipeline with the water spraying hole can spray water to form a cleaning and lubricating layer, realize the feeding of the material carrier 2 and the cleaning and wetting in the feeding process, and prevent dust explosion.

[0053] Embodiment three

[0054] Figures 10 to 11 Another embodiment of the material drying device of the utility model is shown, and the material drying device of the embodiment is basically same with the embodiment two, and the difference is that:

[0055] In the embodiment, the upper part of the hopper 6 is provided with an inflatable sealing ring 61, and the sealing butt joint between the material carrier 2 and the hopper 6 is realized through the inflatable sealing ring 61.

[0056] Embodiment four

[0057] The material drying method of the material drying device in the embodiment comprises the following steps:

[0058] S1, feeding: the material carrier 2 enters the shell 1 and moves in place along the conveying track 5, at this time, the conveying track 5 is provided with a cleaning and lubricating layer (water is sprayed through a pipeline structure with a water spraying hole or the water surface in the water tank 52 is higher than the conveying track 5, so that the cleaning and lubricating layer can be formed), then the hopper 6 is sealingly butt jointed with the material carrier 2;

[0059] S2, drying: the air inlet assembly 3 passes hot air into the shell 1 through the air inlet 11, and the hot air sequentially passes the material in the material carrier 2, the screen 21 and the hopper 6 from top to bottom and is discharged to the outside of the shell 1 through the exhaust assembly 4;

[0060] S3, discharging: the material carrier 2 is separated from the hopper 6, then moves along the conveying track 5 and is transferred to the outside of the shell 1.

[0061] In the material drying method of the embodiment, when the material carrier 2 moves along the conveying track 5, the conveying track 5 has the cleaning and lubricating layer, so that the conveying track 5 can be cleaned and moistened, dust particles are prevented from exploding after being extruded and rubbed in a dry state, safety is good, when drying, the hot air enters the shell 1 through the air inlet 11, then sequentially passes the material in the material carrier 2, the screen 21 and the hopper 6 from top to bottom, so that the material is dried, the hopper 6 can collect hot air in all directions, the drying effect of the material in all places is uniform and good in consistency, finally the hot air is exhausted to the outside through the exhaust assembly 4, the drying effect is good, the drying efficiency is high, energy consumption is reduced, and the hot air flows from top to bottom, which is beneficial to preventing dust particles from floating.

[0062] Although the utility model has disclosed as above with preferred embodiments, however, it is not used to limit the utility model. Any person skilled in the art, without departing from the technical scheme range of the utility model, can utilize the technical contents disclosed above to make many possible changes and modifications to the technical scheme of the utility model, or modify as equivalent variation equivalent embodiment. Therefore, any simple modification, equivalent variation and modification made to the above embodiments according to the technical essence of the utility model should fall within the protection scope of the technical scheme of the utility model.

Claims

1. A material drying apparatus, characterised in that: The application relates to a material conveying device, which comprises a shell (1), a material carrier (2), an air exhaust assembly (4) and an air inlet assembly (3) capable of providing hot air, the shell (1) is provided with an air inlet (11), and a conveying track (5) for conveying the material carrier (2) is arranged in the shell (1); the air inlet assembly (3) is communicated with the air inlet (11); a hopper (6) capable of being connected with the material carrier (2) is arranged below the conveying track (5); the lower part of the material carrier (2) is provided with a screen (21); the air exhaust assembly (4) comprises a dust removal water bath tank (41) communicated with the lower part of the hopper (6), a buffer cavity (43) communicated with the dust removal water bath tank (41) and at least two vacuum extraction components (42) communicated with the buffer cavity (43).

2. The material drying apparatus of claim 1, wherein: A plurality of the material carriers (2) are arranged on the conveying track (5), and each of the material carriers (2) is connected with the hopper (6); the lower part of each of the hoppers (6) is communicated with the dust removal water bath tank (41).

3. The material drying apparatus of claim 1, wherein: The dust removal water bath tank (41) comprises a tank body (411), a spraying pump (412) and a first spraying component (413) arranged on the upper part of the tank body (411); the water inlet of the spraying pump (412) is communicated with the tank body (411), and the water outlet of the spraying pump (412) is communicated with the first spraying component (413).

4. The material drying apparatus according to any one of claims 1 to 3, characterized in that: An air sealing ring (61) is arranged on the upper part of the hopper (6) or the lower part of the material carrier (2).

5. The material drying apparatus according to any one of claims 1 to 3, characterized in that: The conveying track (5) is provided with a lifting component (51), and a sealing element (62) is arranged on the upper part of the hopper (6) or the lower part of the material carrier (2).

6. The material drying apparatus of any one of claims 1 to 3, wherein: The conveying track (5) is a pipeline structure provided with water spraying holes; or the conveying track (5) is arranged in a water tank (52).

7. The material drying apparatus of any one of claims 1 to 3, wherein: The air inlet assembly (3) comprises a fan (31), a primary cold and hot unit (32) and a secondary cold and hot unit (33); the fan (31) is arranged between the primary cold and hot unit (32) and the secondary cold and hot unit (33).

8. The material drying apparatus of any one of claims 1 to 3, wherein: The material carrier (2) is provided with a rolling element (22) matched with the conveying track (5).

9. The material drying apparatus of any one of claims 1 to 3, wherein: The upper part of the shell (1) is provided with a plurality of second spraying components (12), and the lower part of the shell (1) is provided with a water outlet (13).

10. The material drying apparatus of any one of claims 1 to 3, wherein: The shell (1) comprises an inner shell (14), an outer shell (15) arranged on the outer periphery of the inner shell (14) and a heating coil (16) arranged between the inner shell (14) and the outer shell (15). The inner shell (14) is further provided with a temperature measuring component (7) on one side of the screen (21). The air pressure of the inner shell (14) is lower than the standard atmospheric pressure.

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