Hopper dryer
By designing a conical air diffuser and a limiting net in the hopper dryer, the problem of air duct blockage was solved, achieving uniform diffusion of hot air and smooth air intake, thus improving the drying efficiency of plastic granules.
Patent Information
- Application Number
- CN202423302004.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing hopper dryers, when drying wet plastic granules, the air duct is directly connected to the bottom of the hopper, which can easily cause the plastic granules to become clogged and affect the drying efficiency.
A hopper dryer was designed, which uses a conical hopper connected to a material cylinder. A conical air diffuser and a limiting net are set inside the conical hopper. The air duct is connected to the side wall of the conical hopper. The conical air diffuser is supported by a support plate to form a ventilation cavity. Hot air is evenly diffused through the conical air diffuser, improving the smoothness of air intake.
By uniformly distributing hot air, the drying efficiency of plastic granules is improved, ensuring smooth air intake and enhancing the drying effect.
Smart Images
Figure CN223610481U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of drying machine, especially a kind of hopper drying machine. BACKGROUND
[0002] Drying machine is a kind of mechanical equipment using heat energy to reduce the moisture of material, mainly used for drying operation to object.Drying machine makes the moisture (generally refers to water or other volatile liquid component) in material vaporized and escape by heating, to obtain the solid material of specified moisture content.Drying machine is widely used in various fields, such as wood drying before making wood mold, wooden ware can prevent deformation of product;ceramic blank drying before calcination can prevent product cracking;harvested grain is dried to a certain moisture content below to prevent mildew, etc.In addition, drying machine is also used in textile, papermaking, dairy production, chemical industry and other industries.Hopper drying machine is the equipment that can dry the damp raw material due to packaging, transportation or recycling, and it is the most effective and economical model for drying plastic raw material.
[0003] At present, when the hopper drying machine dries the damp plastic particles, generally, the plastic particles are poured into the hopper, then the fan works to pass hot air to the bottom of the hopper through the air pipe, and the hot air carries away the moisture on the plastic, thereby drying the plastic, but the air pipe is generally directly connected to the bottom of the hopper, so that the plastic particles are blocked in the air pipe, causing poor air intake and affecting the drying efficiency. SUMMARY
[0004] In order to improve the drying efficiency, the utility model provides a hopper drying machine aiming at the problems of prior art.
[0005] The utility model provides a hopper drying machine, adopts the following technical scheme:
[0006] A hopper drying machine, comprising a barrel and a fan, the bottom of the barrel is provided with a conical hopper, the top of the barrel is provided with a cover, the cover is provided with an air outlet, the conical hopper is communicated with the barrel, the bottom of the conical hopper is provided with a discharge port, the fan is communicated with the sidewall of the conical hopper through an air pipe, the conical hopper is provided with a conical air diffuser net, a ventilation cavity is arranged between the conical air diffuser net and the inner wall of the conical hopper, the outer side of the conical air diffuser net is provided with a support plate, and the support plate abuts on the inner wall of the conical hopper.
[0007] Preferably, the top side of the conical hopper is rotationally connected with the bottom sidewall of the barrel, a screw rod is rotationally connected on the top of the outer side of the conical hopper, a fixed plate is arranged on the bottom of the outer sidewall of the barrel, a bayonet is arranged on the fixed plate, the screw rod is rotationally inserted into the bayonet, a nut is threadedly connected on the screw rod, and the nut abuts on the upper surface of the fixed plate.
[0008] Preferably, the top of the conical air-expanding net is provided with a convex edge, the top of the conical hopper is provided with a ring groove, the convex edge is embedded in the chute, and the bottom of the barrel abuts against the convex edge.
[0009] Preferably, a plurality of reinforcing rods are arranged on the conical air-expanding net, the reinforcing rods are arranged along the length direction of the slope of the conical air-expanding net, and the supporting plates are connected to the reinforcing rods.
[0010] Preferably, a plurality of reinforcing rings are arranged on the conical air-expanding net, and a plurality of the reinforcing rods are connected to the reinforcing rings.
[0011] Preferably, a limiting net is arranged in the conical air-expanding net, the limiting net is arranged in a conical shape, one end of the limiting net close to the discharge port of the conical hopper is a large-end, and a gap is arranged between the clasp end edge of the limiting net and the inner wall of the conical air-expanding net.
[0012] Preferably, a plurality of reinforcing ribs are arranged on the limiting net, the reinforcing ribs are arranged along the length direction of the slope of the limiting net, and one end of the reinforcing ribs abuts against the inner wall of the conical air-expanding net.
[0013] Preferably, the reinforcing ribs are connected by an abutting ring between one end of the conical air-expanding net.
[0014] Preferably, a material guiding barrel is arranged at one end of the conical air-expanding net close to the discharge port of the conical hopper, the material guiding barrel is arranged in a through manner, and the material guiding barrel is inserted and matched with the discharge port.
[0015] The utility model has at least one of the following beneficial technical effects:
[0016] The operator pours the plastic particles into the barrel, then closes the cover, the fan pumps air into the conical hopper, the electric heating pipe heats the air, the hot air dries the plastic particles, the hot air is evenly diffused into the conical hopper after passing through the conical air-expanding net, then the hot air rises and dries the plastic particles, the air inlet is smoother, the drying efficiency is improved, then the hot air is discharged from the air outlet, the plastic particles are discharged from the discharge valve after being dried. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole structure schematic view of the utility model.
[0018] Figure 2 It is a cross section schematic view of the utility model.
[0019] Figure 3 It is an explosion schematic view of the utility model.
[0020] Figure 4 It is a cross section schematic view of the encouraging hopper in the utility model.
[0021] In the figure: 1, barrel; 11, cover; 111, exhaust port; 2, fan; 21, air pipe; 3, conical hopper; 31, discharge port; 32, ventilation cavity; 33, screw; 34, ring groove; 4, conical air diffuser net; 41, support plate; 42, convex edge; 43, reinforcing rod; 44, reinforcing ring; 45, guide barrel; 5, limiting net; 51, reinforcing rib; 52, abutting ring; DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0024] The utility model embodiment discloses a kind of hoppers dryer, such as Figures 1-4As shown, including the barrel 1 and fan 2, barrel 1 is cylindrically arranged, both ends of barrel 1 are through arranged, barrel 1 bottom is provided with a conical hopper 3, barrel 1 bottom and conical hopper 3 top fit, the top side of conical hopper 3 and the bottom side wall of barrel 1 are connected with a hinge, so that the barrel 1 can be opened. At the same time, the outer side of the top of the conical hopper 3 is provided with a screw 33, one end of the screw 33 is hinged to the conical hopper 3, the outer side wall of the bottom of the barrel 1 is welded with a fixed plate, the fixed plate is provided with a bayonet, the screw 33 is inserted into the bayonet, and the screw 33 is threadedly connected with a nut, the nut is butterfly nut, and the nut abuts against the upper surface of the fixed plate, the operator can open the barrel 1 by rotating the barrel 1, at the same time, after putting down the barrel 1, the screw 33 is inserted into the bayonet of the fixed plate, and the nut is tightened, so that the barrel 1 and the conical hopper 3 are fixed together, at the same time, the conical hopper 3 and the conical hopper 3 are provided with an elastic sealing ring, which can improve the sealing performance.
[0025] At the same time, the top of the barrel 1 is provided with a cover 11, one side of the cover 11 is connected with a hinge between the outer side wall of the barrel 1, the cover 11 is covered on the barrel 1, the outer side wall of the barrel 1 is fixedly installed with a buckle, the edge of the cover 11 is fixedly installed with a hook, the buckle and the hook are buckled to fix the cover 11 on the barrel 1, the cover 11 is installed with an air outlet 111, the bottom of the conical hopper 3 is provided with a discharge port 31, the discharge port 31 is installed with a discharge valve, the fan 2 and the side wall of the conical hopper 3 are communicated with an air pipe 21, one end of the air pipe 21 is communicated with the air outlet end of the fan 2, the other end of the air pipe 21 is communicated with the side wall of the conical hopper 3, and the air pipe 21 is provided with an electric heating pipe. The operator pours the plastic particles into the barrel 1, then closes the cover 11, the fan 2 works to pump air into the conical hopper 3, and the electric heating pipe heats the air, the hot air dries the plastic particles, then the hot air is discharged from the air outlet 111, after drying, the discharge valve is opened, and the plastic particles are discharged from the discharge valve.
[0026] In addition, the conical hopper 3 is provided with a conical air distribution net 4, one end of the conical air distribution net 4 close to the discharge port 31 of the conical hopper 3 is a small end, one end of the conical air distribution net 4 close to the barrel 1 is a large end, the outer side of the conical air distribution net 4 is welded with a support plate 41, the support plate 41 abuts against the inner wall of the conical hopper 3, the connection between the air pipe 21 and the conical hopper 3 is below the support plate 41, the support plate 41 supports the conical air distribution net 4, so that there is a gap between the conical air distribution net 4 and the inner wall of the conical hopper 3, and a ventilation cavity 32 is formed between the conical air distribution net 4 and the inner wall of the conical hopper 3. In this way, after the hot air enters the conical hopper 3, it is evenly distributed in the conical hopper 3 through the ventilation cavity 32, then the hot air rises through the conical air distribution net 4 and the plastic particles, the air inlet is more smooth, and the drying efficiency is improved.
[0027] Meanwhile, the conical air diffuser 4 is welded with a plurality of reinforcing rods 43, the reinforcing rods 43 are arranged along the length direction of the slope of the conical air diffuser 4, the support plate 41 is connected to the reinforcing rods 43, and the reinforcing rods 43 can improve the structural strength of the conical air diffuser 4, so that the conical air diffuser 4 is not easy to deform. In addition, the outer side of the conical air diffuser 4 is welded with a plurality of reinforcing rings 44, the reinforcing rings 44 are arranged along the circumferential direction of the conical air diffuser 4, and the plurality of reinforcing rods 43 are connected to the reinforcing rings 44, and the reinforcing rings 44 can further improve the structural strength of the conical air diffuser 4. In addition, the top of the conical air diffuser 4 is integrally formed with a protruding edge 42, the top of the conical hopper 3 is provided with a ring groove 34, the protruding edge 42 is embedded in the ring groove 34, and the bottom of the barrel 1 abuts against the protruding edge 42. After the operator places the conical air diffuser 4 in the conical hopper 3, the protruding edge 42 is embedded in the ring groove 34, and then the barrel 1 is placed down, the conical air diffuser 4 is fixed. In addition, the end of the conical air diffuser 4 close to the discharge port 31 of the conical hopper 3 is welded with a guide barrel 451, the guide barrel 451 is arranged through both ends, the guide barrel 451 is inserted and matched with the discharge port 31, and the guide barrel 451 can prevent the plastic particles from entering the ventilation cavity 32.
[0028] In addition, the conical air diffuser 4 is provided with a limiting net 5, the limiting net 5 is arranged in a conical shape, one end of the limiting net 5 close to the discharge port 31 of the conical hopper 3 is a large opening end, one end of the limiting net 5 close to the barrel 1 is a small opening end, a plurality of reinforcing ribs 51 are welded on the limiting net 5, the reinforcing ribs 51 are arranged along the length direction of the slope of the limiting net 5, and one end of the reinforcing ribs 51 abuts against the inner wall of the conical air diffuser 4, so that there is a gap between the large opening end edge of the limiting net 5 and the inner wall of the conical air diffuser 4. In the current production process, generally, the bottom of the plastic is dried faster, the dried plastic particles enter the next production step through the discharge port 31, and then the plastic particles above the barrel 1 go down, and when the plastic particles go down, they pass through the gap between the limiting net 5 and the conical air diffuser 4, so that the hot air blown out of the conical air diffuser 4 can fully blow on the plastic particles, so that the plastic particles are dried more fully. In addition, the ends of the plurality of reinforcing ribs 51 abutting against the conical air diffuser 4 are welded with an abutting ring 52, the abutting ring 52 can improve the contact area of the reinforcing ribs 51 and the conical air diffuser 4, reduce the pressure, and improve the structural strength of the limiting net 5.
[0029] The implementation principle of the hopper drying machine is as follows: the operator pours the plastic particles into the feeding cylinder 1, then closes the cover 11, the fan 2 pumps air into the conical hopper 3, the electric heating tube heats the air, the hot air dries the plastic particles, the hot air is uniformly diffused into the conical hopper 3 after passing through the conical air expansion net 4, then the hot air rises and dries the plastic particles, the air inlet is smoother, the drying efficiency is improved, then the hot air is discharged from the air outlet 111, the plastic particles are discharged from the discharge valve after being dried, and the plastic particles are discharged from the discharge valve.
[0030] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model discloses the above preferred embodiment, it is not intended to limit the utility model. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the utility model, and the equivalent embodiments of equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above embodiment according to the utility model technical solution belong to the scope of the utility model technical solution.
Claims
1. A hopper dryer characterised in that: The utility model provides a kind of material cylinder and fan (2), the bottom of the material cylinder (1) is provided with conical hopper (3), the top of the material cylinder (1) is provided with cover (11), the cover (11) is provided with exhaust port (111), the conical hopper (3) is communicated with the material cylinder (1), the bottom of the conical hopper (3) is provided with discharge port (31), the fan (2) is communicated with the sidewall of the conical hopper (3) between wind pipe (21), the conical hopper (3) is provided with conical air diffuser net (4) in, the conical air diffuser net (4) and the inner wall between the conical hopper (3) are provided with ventilation cavity (32), the outside of the conical air diffuser net (4) is provided with support plate (41), and the support plate (41) is abutted on the inner wall of conical hopper (3).
2. A hopper dryer according to claim 1, characterised in that: The top side of the conical hopper (3) is rotatably connected to the bottom side wall of the material cylinder (1), a screw rod (33) is rotatably connected to the top of the outer side of the conical hopper (3), a fixed plate is provided on the outer side wall of the material cylinder (1) at the bottom, a bayonet is provided on the fixed plate, the screw rod (33) is rotatably inserted into the bayonet, and a nut is threadedly connected to the screw rod (33) and abuts against the upper surface of the fixed plate.
3. A hopper dryer according to claim 2, characterised in that: The top of the conical air diffuser net (4) is provided with a convex edge (42), the top of the conical hopper (3) is provided with a ring groove (34), the convex edge (42) is embedded in the ring groove (34), and the bottom of the material cylinder (1) abuts against the convex edge (42).
4. A hopper dryer according to claim 1, characterised in that: A plurality of reinforcing rods (43) are provided on the conical air diffuser net (4), the reinforcing rods (43) are arranged along the length direction of the inclined surface of the conical air diffuser net (4), and the support plate (41) is connected to the reinforcing rods (43).
5. A hopper dryer according to claim 4, characterised in that: The conical air diffuser net (4) is provided with a reinforcing ring (44), and a plurality of the reinforcing rods (43) are connected to the reinforcing ring (44).
6. A hopper dryer according to claim 1, characterised in that: A limiting net (5) is arranged in the conical air diffuser net (4), the limiting net (5) is arranged in a conical shape, one end of the limiting net (5) close to the discharge port (31) of the conical hopper (3) is a large opening end, and a gap is provided between the edge of the large opening end of the limiting net (5) and the inner wall of the conical air diffuser net (4).
7. A hopper dryer according to claim 6, characterised in that: A plurality of reinforcing ribs (51) are provided on the limiting net (5), the reinforcing ribs (51) are arranged along the length direction of the inclined surface of the limiting net (5), and one end of the reinforcing rib (51) abuts against the inner wall of the conical air diffuser net (4).
8. A hopper dryer according to claim 7, characterised in that: A plurality of the reinforcing ribs (51) are connected by an abutting ring (52) at one end of the end portion of the conical air diffuser net (4).
9. A hopper dryer according to claim 1, characterised in that: One end of the conical air diffuser net (4) close to the discharge port (31) of the conical hopper (3) is provided with a guide cylinder (45) (1), the guide cylinder (45) (1) is arranged in a through manner, and the guide cylinder (45) (1) is inserted and matched with the discharge port (31).