Biomass fuel dehumidifying and drying device

Abstract

The utility model provides a biomass fuel dehumidifying and drying device which comprises a supporting seat, a drying box body, a feeding hopper and a drying assembly, and the drying assembly comprises a concave filter plate, a heat insulation protection plate and a dryer; the bottom of the concave filter plate is fixedly connected with the top of the drying box body; the heat insulation protection plate is in a semi-opening shape. The bottom of the heat insulation protection plate is fixedly connected with the bottom of the inner wall of the drying box. A water return cavity is formed between the surface of one side of the heat insulation protection plate and the inner wall of the drying box body; a top cover is clamped on the surface of the concave filter plate; the surface of the top cover is communicated with an air guide bent pipe; a square clamping groove matched with the top cover is formed in the top of the heat insulation protection plate. By arranging the drying assembly, drying is integrally achieved, meanwhile, steam can be recycled, the situation that explosion possibly occurs due to steam liquefaction backflow and gas expansion in the sealed environment is avoided, the drying safety is guaranteed, and then the drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass fuel processing, in particular to a biomass fuel dehumidification and drying device. Background Art

[0002] As a kind of renewable energy, biomass fuel has received widespread attention worldwide in recent years. It is a fuel made from organic matter such as plants and animals after certain processing. It has the characteristics of fixed carbon, renewability, low cost, clean and environmentally friendly. The preparation process of biomass fuel mainly includes raw material preparation, drying and crushing, mixed granulation and drying treatment. Drying the prepared pellets can remove excess moisture and improve their calorific value and combustion efficiency.

[0003] A Chinese patent with publication number CN217110251 U discloses a biomass fuel dehumidification and drying device, including a drying device body, the drying device body including an outer shell, a storage box, a quick drying channel and an isolation net, a storage box is arranged on the top of the outer shell, a feeding port is opened on the top of the storage box, an isolation net is installed inside the storage box, an air inlet 2 is opened on the top of the isolation net, a low-power heating tube is installed at the bottom of the air inlet 2, an air inlet 1 is opened at the rear end of the outer shell, the interior of the air inlet 1 is filled with activated carbon, the bottom end of the storage box is connected with the quick drying channel, the top and bottom of the quick drying channel are respectively provided with an upper splint and a lower splint, the biomass fuel dehumidification and drying device has two modes: quick drying and long-term standby storage, which optimizes energy consumption, has a uniform drying effect, and can be taken and used at any time.

[0004] As mentioned above, the patent provides a biomass fuel dehumidification and drying device, which can have two modes: fast drying and long-term standby storage, optimizes energy consumption, has a uniform drying effect, and can be used at any time. However, when drying, since the biomass fuel contains a certain amount of moisture, open drying is generally adopted, and steam will float up. After floating up, it will inevitably be cooled and liquefied, and then fall back to the surface of the biomass fuel, making the dehumidification not thorough enough. Although sealed drying can avoid steam liquefaction, it will cause internal gas expansion and possible explosion. The safety of drying needs to be improved, which leads to the overall drying efficiency needs to be improved. Utility Model Content

[0005] The utility model provides a biomass fuel dehumidification and drying device to solve the problems raised in the background technology.

[0006] In order to solve the above problems, the utility model provides a biomass fuel dehumidification and drying device, including a support seat, a drying box, a feed hopper and a drying component, wherein the drying component includes a concave filter plate, a heat insulation protective plate and a dryer; the bottom of the concave filter plate is fixedly connected to the top of the drying box; the heat insulation protective plate is arranged in a half-mouth shape; the bottom of the heat insulation protective plate is fixedly connected to the bottom of the inner wall of the drying box; a water return chamber is formed between the surface of one side of the heat insulation protective plate and the inner wall of the drying box; the surface of the concave filter plate is clamped with a top cover; the surface of the top cover is connected with an air guide bend; the top of the heat insulation protective plate is provided with a square card slot adapted to the top cover; the bottom of the dryer is fixedly connected to the bottom of the inner wall of the drying box; the bottom of the drying box is rotatably connected with a rotating shaft; the top end of the rotating shaft is fixedly connected with a ventilation plate.

[0007] Preferably: the number of the air guide bends is set to be multiple, and the multiple air guide bends are staggered on the surface of the top cover; the top of the drying box body is clamped with a condensing box cover; the top of the support seat is fixedly connected to the bottom of the drying box body.

[0008] Preferably: an electric telescopic rod is fixedly connected to the surface of the heat insulation protection plate; an extrusion card is fixedly connected to the end of the electric telescopic rod away from the heat insulation protection plate; a spring telescopic rod is fixedly connected to the surface of the extrusion card and at both ends of the electric telescopic rod; the number of the extrusion card is set to two, and the two extrusion card plates are symmetrically arranged on both sides of the breathable plate.

[0009] Preferably: a motor barrel is fixedly connected to the bottom of the support seat; a motor is fixedly connected to the inside of the motor barrel; the output shaft of the motor is fixedly connected to the bottom end of the rotating shaft through a coupling; one end of the rotating shaft passes through the motor barrel, the support seat and the drying box in sequence and extends to the inside of the drying box; the end of the rotating shaft located inside the drying box is fixedly connected to the bottom of the air permeable plate.

[0010] Preferably: the surface of the feed hopper is interconnected with one side of the drying box; the surface of the feed hopper is fixedly connected to one side of the drying box; a hopper door is hinged on the surface of the feed hopper; a drain pipe is connected to the surface of the drying box and located on one side of the return water chamber; a blocking block is threadedly connected to the surface of the drain pipe.

[0011] The beneficial effects of adopting the above technical solution are:

[0012] 1. By setting a drying component, when working, the biomass fuel is placed on the ventilation plate, the dryer heats up the inside of the drying box, and the rotation of the rotating shaft drives the ventilation plate to rotate, so that the drying is more uniform. In order to avoid the liquefaction reflux and expansion of steam, an inwardly concave filter plate is fixed at the bottom of the drying box, the inwardly concave filter plate is clamped with the top cover, and the top cover is clamped into the top of the heat insulation protective plate, and the biomass fuel is placed inside the heat insulation protective plate for drying. When steam is generated, the steam is discharged along the air guide elbow on the surface of the top cover. If the discharged steam is liquefied, it will not flow back from the air guide elbow, but will only fall on the inwardly concave filter plate, and then fall into the return water cavity between the inwardly concave filter plate and the inner wall of the drying box. While achieving overall drying, the steam can be recovered to avoid the liquefaction reflux of steam and the possible explosion caused by the expansion of the sealed environment gas, thereby ensuring the safety of drying and improving the drying efficiency.

[0013] 2. By fixing an electric telescopic rod on the surface of the heat-insulating protective plate, the electric telescopic rod can drive the extrusion pallet to slide after it is working. At the same time, two extrusion pallets are set up and arranged symmetrically on both sides of the breathable plate. After the extrusion pallet moves, it squeezes the biomass fuel placed on the top of the breathable plate, which can squeeze out the water inside the biomass fuel, thereby accelerating the drying rate and further improving the adaptability of drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another viewing angle.

[0016] Figure 3 It is a cross-sectional view of the internal structure of the drying box of the utility model.

[0017] Figure 4 It is a partial structural schematic diagram of the utility model.

[0018] Among them: 1. Support seat; 2. Drying box body; 3. Feed hopper; 4. Concave filter plate; 5. Heat insulation protection plate; 6. Dryer; 7. Return water chamber; 8. Top cover; 9. Air guide elbow; 10. Square slot; 11. Rotating shaft; 12. Place the breathable plate; 13. Condensation box cover; 14. Electric telescopic rod; 15. Extrusion card plate; 16. Spring telescopic rod; 17. Motor barrel; 18. Motor; 19. Hopper door; 20. Drain pipe; 21. Blockage block. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0020] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a movable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 - Figure 4 As shown, in this embodiment, a biomass fuel dehumidification and drying device includes a support seat 1, a drying box body 2, a feed hopper 3 and a drying component, and the drying component includes a concave filter plate 4, a heat insulation protective plate 5 and a dryer 6; the bottom of the concave filter plate 4 is fixedly connected to the top of the drying box body 2; the heat insulation protective plate 5 is set to a half-mouth shape; the bottom of the heat insulation protective plate 5 is fixedly connected to the bottom of the inner wall of the drying box body 2; a return water chamber 7 is formed between the surface of one side of the heat insulation protective plate 5 and the inner wall of the drying box body 2; the surface of the concave filter plate 4 is clamped with a top cover 8; the surface of the top cover 8 is connected with an air guide bend 9; the top of the heat insulation protective plate 5 is provided with a square card slot 10 adapted to the top cover 8; the bottom of the dryer 6 is fixedly connected to the bottom of the inner wall of the drying box body 2; the bottom of the drying box body 2 is rotatably connected to a rotating shaft 11; the top of the rotating shaft 11 is fixedly connected to a ventilation plate 12.

[0023] Through the above technical scheme, the drying component is arranged inside the drying box body 2, the concave filter plate 4 is fixed at the bottom of the drying box body 2, the heat insulation protection plate 5 is fixed at the bottom of the inner wall of the drying box body 2, and the heat insulation protection plate 5 is arranged in a semi-mouth shape, so that a water return chamber 7 can be formed between the heat insulation protection plate 5 and the inner wall of the drying box body 2. In addition, a square card slot 10 is provided on the top of the heat insulation protection plate 5, so that the top cover 8 can be inserted into the concave filter plate 4 and then inserted into the square card slot 10, so that the generated steam can be directly discharged from the air guide bend 9 on the surface of the top cover 8. The dryer 6 is fixed at the bottom of the inner wall of the drying box body 2 to dry the interior, and at the same time, a breathable disk 12 is placed on the inner side of the heat insulation protection plate 5. After the rotating shaft 11 rotates, the breathable disk 12 can be driven to start rotating. When working, the biomass fuel is placed on the breathable disk 12, and the dryer 6 heats the interior of the drying box body 2. Temperature, the rotation of the rotating shaft 11 drives the ventilation plate 12 to rotate, so that the drying is more uniform, and in order to avoid the liquefaction reflux and expansion of steam, the concave filter plate 4 is fixed at the bottom of the drying box body 2, and the top cover 8 is clamped inside the concave filter plate 4, and the top cover 8 is clamped into the top of the heat insulation protection plate 5, and the biomass fuel is placed inside the heat insulation protection plate 5 for drying. When steam is generated, the steam is discharged along the air guide elbow 9 on the surface of the top cover 8. If the discharged steam is liquefied, it will not flow back from the air guide elbow 9, but will only fall on the concave filter plate 4, and then fall into the return water chamber 7 between the concave filter plate 4 and the inner wall of the drying box body 2. While achieving the overall drying, the steam can be recovered to avoid the liquefaction reflux of steam and the possible explosion caused by the expansion of the sealed environment gas, thereby ensuring the safety of drying and improving the drying efficiency.

[0024] like Figure 1 , Figure 2 and Figure 4As shown, the number of the air guide bends 9 is set to be multiple, and the multiple air guide bends 9 are staggered on the surface of the top cover 8; the top of the drying box 2 is clamped with a condensing box cover 13; the top of the support seat 1 is fixedly connected to the bottom of the drying box 2; the surface of the heat insulation protection plate 5 is fixedly connected with an electric telescopic rod 14; the end of the electric telescopic rod 14 away from the heat insulation protection plate 5 is fixedly connected with an extrusion card plate 15; the surface of the extrusion card plate 15 and the two ends of the electric telescopic rod 14 are fixedly connected with spring telescopic rods 16; the extrusion card plate 1 The number of 5 is set to two, and the two extrusion card plates 15 are symmetrically arranged on both sides of the breathable plate 12; the bottom of the support seat 1 is fixedly connected with a motor barrel 17; the inside of the motor barrel 17 is fixedly connected with a motor 18; the output shaft of the motor 18 is fixedly connected to the bottom end of the rotating shaft 11 through a coupling; one end of the rotating shaft 11 passes through the motor barrel 17, the support seat 1 and the drying box 2 in sequence and extends to the inside of the drying box 2; the end of the rotating shaft 11 located inside the drying box 2 is fixedly connected to the bottom of the breathable plate 12.

[0025] Through the above technical scheme, multiple air guide elbows 9 are set, which are staggered on the surface of the top cover 8, so that the internal steam can be discharged faster. The condensation box cover 13 is clamped on the top of the drying box body 2, so that the steam can be quickly liquefied after contact. The support seat 1 supports the drying box body 2, and the electric telescopic rod 14 is fixed on the surface of the heat insulation protection plate 5. The extrusion card plate 15 is fixed at one end of the electric telescopic rod 14. After the electric telescopic rod 14 works, it can drive the extrusion card plate 15 to slide. At the same time, two extrusion card plates 15 are set, which are symmetrically arranged on both sides of the breathable plate 12, so that the extrusion card plates 15 can move to the biomass placed on the top of the breathable plate 12. The fuel is squeezed to squeeze out the water inside the biomass fuel, thereby accelerating the drying rate and further improving the adaptability of the drying. In this process, a spring telescopic rod 16 is set, which can be extended and retracted along with the movement of the extrusion card 15, so as to better support the extrusion card 15. Finally, the motor barrel 17 is fixed at the bottom of the support seat 1 for installing the motor 18. When the motor 18 is working, the output shaft drives the rotating shaft 11 to start rotating, and the rotating shaft 11 extends to the interior of the drying box 2 and is fixedly connected to the bottom of the breathable plate 12, so that after the rotating shaft 11 rotates, it can drive the breathable plate 12 to start rotating.

[0026] like Figure 1 and Figure 2 As shown, the surface of the feed hopper 3 is interconnected with one side of the drying box body 2; the surface of the feed hopper 3 is fixedly connected to one side of the drying box body 2; a hopper door 19 is hinged on the surface of the feed hopper 3; a drain pipe 20 is connected to the surface of the drying box body 2 and located on one side of the return water chamber 7; a blocking block 21 is threadedly connected to the surface of the drain pipe 20.

[0027] Through the above technical scheme, the feed hopper 3 is fixed on one side of the drying box 2 and connected, which is convenient for unloading. The hopper door 19 is hinged on the surface of the feed hopper 3 to protect the interior during drying and prevent external cold air from entering the drying box 2. The drain pipe 20 is connected to one side of the drying box 2 to discharge the refluxed condensed water, and the blocking block 21 is used to block the drain pipe 20.

[0028] Finally, it should be noted that the above implementation cases are only used to illustrate the present invention, rather than to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention; the technology not described in detail in the present invention is implemented with the existing technology.

Claims

1. A biomass fuel dehumidification and drying device, comprising a support base (1), a drying box (2), a feed hopper (3) and a drying component, characterized in that: The drying assembly comprises an inwardly concave filter plate (4), a heat-insulating protective plate (5) and a dryer (6); the bottom of the inwardly concave filter plate (4) is fixedly connected to the top of the drying box (2); the heat-insulating protective plate (5) is arranged in a half-mouth shape; the bottom of the heat-insulating protective plate (5) is fixedly connected to the bottom of the inner wall of the drying box (2); a return water chamber (7) is formed between the surface of one side of the heat-insulating protective plate (5) and the inner wall of the drying box (2); a top cover (8) is snapped onto the surface of the inwardly concave filter plate (4); the surface of the top cover (8) is connected to an air guide elbow (9); a square slot (10) adapted to the top cover (8) is provided on the top of the heat-insulating protective plate (5); the bottom of the dryer (6) is fixedly connected to the bottom of the inner wall of the drying box (2); the bottom of the drying box (2) is rotatably connected to a rotating shaft (11); the top end of the rotating shaft (11) is fixedly connected to a ventilation plate (12) for placement.

2. A biomass fuel dehumidification and drying device according to claim 1, characterized in that: The number of the air guide bends (9) is set to be multiple, and the multiple air guide bends (9) are arranged in a staggered manner on the surface of the top cover (8); the top of the drying box body (2) is clamped with a condensation box cover (13); the top of the support seat (1) is fixedly connected to the bottom of the drying box body (2).

3. A biomass fuel dehumidification and drying device according to claim 1, characterized in that: The surface of the heat insulation protection plate (5) is fixedly connected to an electric telescopic rod (14); one end of the electric telescopic rod (14) away from the heat insulation protection plate (5) is fixedly connected to an extrusion card plate (15); the surface of the extrusion card plate (15) and both ends of the electric telescopic rod (14) are fixedly connected to spring telescopic rods (16); the number of the extrusion card plates (15) is set to two, and the two extrusion card plates (15) are symmetrically arranged on both sides of the air permeable plate (12).

4. The biomass fuel dehumidification and drying device according to claim 1, characterized in that: The bottom of the support seat (1) is fixedly connected to a motor cylinder (17); the interior of the motor cylinder (17) is fixedly connected to a motor (18); the output shaft of the motor (18) is fixedly connected to the bottom end of the rotating shaft (11) via a coupling; one end of the rotating shaft (11) sequentially passes through the motor cylinder (17), the support seat (1) and the drying box (2) and extends to the interior of the drying box (2); one end of the rotating shaft (11) located inside the drying box (2) is fixedly connected to the bottom of the ventilation plate (12) placed thereon.

5. The biomass fuel dehumidification and drying device according to claim 1, characterized in that: The surface of the feed hopper (3) is in communication with one side of the drying box (2); the surface of the feed hopper (3) is fixedly connected to one side of the drying box (2); a hopper door (19) is hingedly connected to the surface of the feed hopper (3); a drain pipe (20) is in communication with the surface of the drying box (2) and one side of the return water chamber (7); a blocking block (21) is threadedly connected to the surface of the drain pipe (20).

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