Biomass particle rapid drying equipment

Abstract

The utility model relates to the technical field of biomass particle rapid drying equipment, and provides biomass particle rapid drying equipment which comprises a barrel body, a barrel cover and a supporting frame, the barrel cover is located on the upper portion of the barrel body and detachably connected with the barrel body, the barrel body is located in the supporting frame and connected with the supporting frame in an abutting mode, and the barrel cover is located on the upper portion of the barrel body and detachably connected with the barrel body. The side wall of the barrel body is divided into an outer barrel wall and an inner barrel wall, a hot air gap is formed between the outer barrel wall and the inner barrel wall, a heating pipe is arranged in the hot air gap and abuts against the inner barrel wall, the barrel body is provided with a hot air structure used for blowing hot air in the hot air gap into the middle in the barrel body, and the hot air structure is located at the outer bottom of the barrel body. An air inlet is formed in the position, close to the barrel cover, of the outer barrel wall and communicated with the hot air gap, and an air outlet is formed in the barrel cover and communicated with the interior of the barrel body. According to the technical scheme, the problem that in the prior art, biomass particles in the middle of the interior of the cylinder cannot be dried rapidly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass particle fast drying equipment, and specifically relates to a biomass particle fast drying equipment. Background Art

[0002] Biomass pellets are a kind of granular solid fuel made from renewable biomass materials such as wood chips, straw, cereal straw, corn cobs, etc., which have the advantages of high energy density, low moisture content, easy storage and transportation. Biomass pellets are widely used in the field of bioenergy, for heating boilers, biomass power plants, biomass cogeneration, etc., and are an important form of renewable energy. In the production and application of biomass pellets, it is inevitable that the pellets contain a certain amount of moisture. However, high moisture content will affect the combustion efficiency, storage stability and transportation cost of biomass pellets. Therefore, it is very necessary to dry the biomass pellets, which can increase the calorific value of the pellets, reduce weight, reduce transportation costs, and ensure the quality and stability of the pellets.

[0003] The prior art discloses a rapid drying device for biomass particles, comprising a dryer main body, a dryer cover plate being installed on the top surface of the dryer main body by screws, heating rods being evenly installed on the inner wall of the dryer main body, a rotating cylinder being movably installed inside the dryer main body, a rotating cylinder cover plate being installed on the top surface of the rotating cylinder by screws, a rotating ring being installed on the bottom surface of the rotating cylinder by screws, a rotating groove being provided at a position corresponding to the rotating ring inside the dryer main body, a motor being installed on the top surface of the rotating cylinder cover plate, a filter plate being installed inside the rotating cylinder by screws, an active sponge being adsorbed between the filter plate and the inner wall of the rotating cylinder, and the drying speed of the biomass particles is accelerated by rotating heating.

[0004] The above-mentioned drying equipment dries the biomass particles by means of a heating rod. Since the heating rod is arranged on the inner wall, it cannot directly heat and dry the biomass particles in the middle part of the cylinder. It can only transfer heat to the biomass particles in the middle part step by step through the biomass particles close to the inner wall in the cylinder. Thus, the biomass particles in the middle part cannot be dried quickly. Utility Model Content

[0005] The utility model provides a biomass particle fast drying device, which solves the problem in the related art that the biomass particles in the middle part of the cylinder cannot be quickly dried.

[0006] The technical solution of the utility model is as follows:

[0007] A biomass particle rapid drying device comprises a cylinder body, a cylinder cover and a support frame, wherein the cylinder cover is located at the upper part of the cylinder body and is detachably connected to the cylinder body, the cylinder body is located in the support frame, the cylinder body abuts against the support frame, the cylinder body comprises an outer cylinder wall and an inner cylinder wall, a hot air gap is provided between the outer cylinder wall and the inner cylinder wall, a heating pipe is provided in the hot air gap, the heating pipe abuts against the inner cylinder wall, the cylinder body is provided with a hot air structure for blowing the hot air in the hot air gap into the middle part of the cylinder body, the hot air structure is located at the outer bottom of the cylinder body, an air inlet is provided on the outer cylinder wall near the cylinder cover, the air inlet is communicated with the hot air gap, an air outlet is provided on the cylinder cover, and the air outlet is communicated with the inside of the cylinder body.

[0008] Furthermore, the hot air structure includes an air duct and a fan, one end of the air duct extends toward the interior of the cylinder body and is connected to the interior of the cylinder body, one end of the air duct away from the interior of the cylinder body extends toward the hot air gap and is connected to the hot air gap, the fan is located in the air duct and is fixedly connected to the air duct, the air outlet of the fan faces the connection between the air duct and the interior of the cylinder body, and the air inlet of the fan faces the connection between the air duct and the interior of the hot air gap.

[0009] Furthermore, a hollow rotating cylinder is provided inside the cylinder body, and the hollow rotating cylinder is abutted against the bottom surface of the cylinder body. The air duct is located inside the hollow rotating cylinder and is connected with the inside of the hollow rotating cylinder. The air duct is located at the inner end of the cylinder body close to the bottom of the cylinder body. A plurality of air outlet openings are provided on the side wall of the hollow rotating cylinder, and the air outlet openings are respectively connected with the inside of the hollow rotating cylinder and the inside of the cylinder body.

[0010] Furthermore, a rotating motor for driving the hollow rotating cylinder to rotate is fixedly connected to the outer top of the cylinder cover, and the rotating motor includes a rotating shaft, which extends through the cylinder cover to the inside of the cylinder body, and one end of the rotating shaft facing the cylinder body is detachably connected to one end of the hollow rotating cylinder facing the cylinder cover, and a plurality of stirring rods are fixedly connected to the outer cylinder wall of the hollow rotating cylinder, and the stirring rods extend from the outer cylinder wall of the hollow rotating shaft toward the inner cylinder wall of the cylinder body.

[0011] Further, a plurality of air outlet openings are arranged along the circumferential direction of the hollow rotating cylinder to form a plurality of circumferential opening groups, and a plurality of circumferential opening groups are arranged along the longitudinal direction of the hollow rotating cylinder to form linear opening groups;

[0012] A plurality of stirring rods are arranged along the circumferential direction of the hollow rotating cylinder to form a plurality of circumferential rod groups, and a plurality of circumferential rod groups are arranged along the longitudinal direction of the hollow rotating cylinder to form a linear rod group.

[0013] Furthermore, the fan is located on the side of the air duct facing the inner wall end of the cylinder body, and a collecting bottle is detachably connected to the lower part of the air duct facing the inner wall end of the cylinder body, and the interior of the collecting bottle is connected to the air duct.

[0014] The working principle and beneficial effects of the utility model are:

[0015] The utility model heats the inner cylinder wall and the air in the hot air interval at the same time through the heating tube, so that the biomass particles near the inner cylinder wall inside the cylinder body are quickly dried after being heated, and the air in the hot air interval is blown into the middle part of the cylinder body through the hot air structure, so that the biomass particles in the middle part of the cylinder body are quickly dried after being heated. The utility model adopts the heating tube to heat the inside of the cylinder body and the air in the hot air interval at the same time, makes greater use of the heating tube, and blows the heated air into the inside of the cylinder body, further heats the inside of the cylinder body, realizes rapid heating and drying of the biomass particles at each position inside the cylinder body, and solves the problem that the biomass particles in the middle part of the cylinder in the related art cannot be quickly dried. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a right view of the utility model;

[0019] Figure 3 for Figure 2 Sectional view at AA;

[0020] Figure 4 for Figure 2 Cross-sectional view at BB.

[0021] In the figure: 1. cylinder body; 2. cylinder cover; 3. support frame; 4. hollow rotating cylinder; 5. air duct; 6. collecting bottle; 10. outer cylinder wall; 11. inner cylinder wall; 12. heating tube; 13. air inlet; 14. hot air gap; 20. rotating motor; 21. rotating shaft; 22. air outlet; 40. air outlet opening; 41. stirring rod; 50. fan. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 to Figure 4As shown, this embodiment proposes a biomass particle rapid drying device, including a cylinder body 1, a cylinder cover 2, and a support frame 3. The cylinder cover 2 is located at the upper part of the cylinder body 1 and is detachably connected to the cylinder body 1. The cylinder body 1 is located in the support frame 3, and the cylinder body 1 abuts against the support frame 3. The cylinder body 1 includes an outer cylinder wall 10 and an inner cylinder wall 11. The inner cylinder wall 11 is located inside the outer cylinder wall 10. A hot air gap 14 is arranged between the outer cylinder wall 10 and the inner cylinder wall 11. A heating pipe 12 is arranged in the hot air gap 14, and the heating pipe 12 abuts against the inner cylinder wall 11. The cylinder body 1 is provided with a hot air structure for blowing the hot air in the hot air gap 14 into the middle part of the cylinder body 1. The hot air structure is located at the outer bottom of the cylinder body 1. An air inlet 13 is arranged on the outer cylinder wall 10 near the cylinder cover 2, and the air inlet 13 is communicated with the hot air gap 14. An air outlet 22 is arranged on the cylinder cover 2, and the air outlet 22 is communicated with the inside of the cylinder body 1. The hot air interval is used to ensure that the heating tube 12 stably heats the same volume of air, so that the air can heat up quickly; the heating tube 12 is used to heat the biomass particles near the inner cylinder wall 11 inside the cylinder body 1 and the air in the hot air interval at the same time. This arrangement can make greater use of the heating tube 12; the hot air structure is used to blow the hot air in the hot air interval into the middle part of the cylinder body 1, so that the biomass particles located in the middle part of the cylinder body 1 can also be quickly heated and dried; the air inlet 13 is the opening for external air to enter the hot air interval. The air inlet 13 is set near the cylinder cover 2, and the hot air structure is set at the outer bottom of the cylinder body 1. The distance from the external air to the hot air structure after entering the hot air interval can be increased, so that the air just entering the hot air interval can have sufficient time to be heated, and then when it enters the cylinder body 1, its temperature can heat and dry the biomass particles faster; the air outlet is used to discharge the hot and humid air inside the cylinder body 1.

[0024] In this embodiment, the hot air structure includes an air duct 5 and a fan 50. One end of the air duct 5 extends toward the inside of the barrel 1 and communicates with the inside of the barrel 1. One end of the air duct 5 away from the inside of the barrel 1 extends toward the hot air gap 14 and communicates with the hot air gap 14. The fan 50 is located in the air duct 5 and is fixedly connected to the air duct 5. The air outlet of the fan 50 faces the connection between the air duct 5 and the inside of the barrel 1, and the air inlet of the fan 50 faces the connection between the air duct 5 and the inside of the hot air gap 14. The air duct 5 is used to connect the hot air gap with the inside of the barrel 1, and the hot air passes through the air duct 5 from the hot air gap to the inside of the barrel 1; the fan 50 is used to blow the hot air in the hot air gap into the inside of the barrel 1.

[0025] In this embodiment, a hollow rotating cylinder 4 is arranged inside the cylinder body 1, the hollow rotating cylinder 4 is in contact with the inner bottom of the cylinder body 1, the air duct 5 is located inside the hollow rotating cylinder 4 and communicated with the inner part of the hollow rotating cylinder 4, the air duct 5 is located at the inner end of the cylinder body 1 close to the inner bottom of the cylinder body 1, and a plurality of air outlet openings 40 are arranged on the side wall of the hollow rotating cylinder 4, and the air outlet openings 40 are communicated with the inner part of the hollow rotating cylinder 4 and the inner part of the cylinder body 1 respectively. The hollow rotating cylinder 4 is used to guide the hot air from the inner bottom of the cylinder body 1 to the inner top of the cylinder body 1, so that the hot air can evenly heat the biomass particles located at the top and bottom of the cylinder body 1; the air duct 5 is arranged inside the hollow rotating cylinder 4, so that the hot air can be diffused along the hollow rotating cylinder 4, so that it can achieve a better heating effect; the air outlet opening 40 is the outlet for the hot air inside the hollow rotating cylinder 4 to diffuse to the inner part of the cylinder body 1.

[0026] In this embodiment, a rotating motor 20 for driving the hollow rotating cylinder 4 to rotate is fixedly connected to the top of the cylinder cover 2. The rotating motor 20 includes a rotating shaft 21. The rotating shaft 21 passes through the cylinder cover 2 and extends to the inside of the cylinder body 1. The end of the rotating shaft 21 facing the cylinder body 1 is detachably connected to the end of the hollow rotating cylinder 4 facing the cylinder cover 2. The detachable connection can be in an embedded manner, by providing a protrusion on the rotating shaft 21, providing a groove on the hollow rotating cylinder 4, and embedding the protrusion into the groove, thereby connecting the rotating shaft 21 to the hollow rotating cylinder 4. The connection between the hollow rotating cylinder 4 and the rotating shaft 21 can be A latch is arranged transversely to make the connection between the hollow rotating cylinder 4 and the rotating shaft 21 more stable. A section of the hollow rotating cylinder 4 facing the rotating shaft 21 should be a sealing protrusion to prevent hot air from overflowing from one end of the hollow rotating cylinder 4 facing the rotating shaft 21. If hot air overflows from one end of the hollow rotating cylinder 4 facing the rotating shaft 21, it is easy to cause the connection between the hollow rotating cylinder 4 and the rotating shaft 21 to be unstable, which is easy to affect the drying effect. A plurality of stirring rods 41 are fixedly connected to the outer cylinder wall 10 of the hollow rotating cylinder 4, and the stirring rods 41 extend from the outer cylinder wall 10 of the hollow rotating shaft 21 toward the inner cylinder wall 11 of the cylinder body 1. The rotating motor 20 is used to drive the rotating shaft 21 to rotate, and the rotating shaft 21 is used to drive the hollow rotating cylinder 4 to rotate. The stirring rods 41 are used to break up the biomass particles inside the cylinder body 1, increase the contact area between the biomass particles and the hot air, and thus accelerate the drying speed of the biomass particles.

[0027] In this embodiment, a plurality of air outlet openings 40 are arranged along the circumferential direction of the hollow rotating cylinder 4 to form a plurality of circumferential opening groups, and a plurality of circumferential opening groups are arranged along the longitudinal direction of the hollow rotating cylinder 4 to form linear opening groups. Such arrangement of the air outlet openings 40 can heat and dry the biomass particles from the top of the cylinder body 1 to the bottom of the cylinder body 1 more quickly and evenly, achieving a better drying effect.

[0028] Several stirring rods 41 are arranged along the circumferential direction of the hollow rotating cylinder 4 to form several groups of circular rod groups, and several groups of circular rod groups are arranged along the longitudinal direction of the hollow rotating cylinder 4 to form linear rod groups. Such arrangement of stirring rods 41 can increase the contact area between biomass particles and hot air to a greater extent, thereby achieving faster drying.

[0029] In this embodiment, the fan 50 is located on the side of the air duct 5 facing the inner wall end of the cylinder body 1, and the air duct 5 facing the inner wall end of the cylinder body 1 is detachably connected with a collecting bottle 6, and the collecting bottle 6 and the air duct 5 can be connected by threads. The threaded connection is easy to disassemble and has good sealing performance, which can prevent hot air from escaping from the connection between the collecting bottle 6 and the air duct 5. The inside of the collecting bottle 6 is connected with the air duct 5. The fan 50 is arranged on the side of the air duct 5 facing the inner wall end of the cylinder body 1, which can prevent the situation that when the staff adds the biomass particles to be dried into the cylinder body 1, the small biomass particles fall into the air duct 5 from the air outlet 40, affecting the operation of the fan 50, and ensure that the fan 50 can work normally; the collecting bottle 6 is used to collect the biomass particles that fall into the air duct 5, and the collecting bottle 6 is detachably connected to the air duct 5, which can facilitate the staff to remove the biomass particles in the collecting bottle 6.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biomass particle rapid drying device, comprising a cylinder body (1), a cylinder cover (2), and a support frame (3), wherein the cylinder cover (2) is located at the upper part of the cylinder body (1) and is detachably connected to the cylinder body (1), the cylinder body (1) is located in the support frame (3), and the cylinder body (1) is in contact with the support frame (3), characterized in that: The barrel (1) comprises an outer barrel wall (10) and an inner barrel wall (11); a hot air gap (14) is provided between the outer barrel wall (10) and the inner barrel wall (11); a heating pipe (12) is provided in the hot air gap (14); the heating pipe (12) abuts against the inner barrel wall (11); the barrel (1) is provided with a hot air structure for blowing hot air in the hot air gap (14) into the middle of the barrel (1); the hot air structure is located at the outer bottom of the barrel (1); an air inlet (13) is provided on the outer barrel wall (10) near the barrel cover (2); the air inlet (13) is communicated with the hot air gap (14); an air outlet (22) is provided on the barrel cover (2); the air outlet (22) is communicated with the inside of the barrel (1).

2. The biomass pellet rapid drying equipment according to claim 1, characterized in that: The hot air structure comprises an air duct (5) and a fan (50); one end of the air duct (5) extends toward the interior of the barrel (1) and is in communication with the interior of the barrel (1); one end of the air duct (5) away from the interior of the barrel (1) extends toward the hot air gap (14) and is in communication with the hot air gap (14); the fan (50) is located in the air duct (5) and is fixedly connected to the air duct (5); an air outlet of the fan (50) faces the connection between the air duct (5) and the interior of the barrel (1); and an air inlet of the fan (50) faces the connection between the air duct (5) and the interior of the hot air gap (14).

3. The biomass pellet rapid drying equipment according to claim 2, characterized in that: A hollow rotating cylinder (4) is provided inside the cylinder body (1), the hollow rotating cylinder (4) is in contact with the bottom surface of the cylinder body (1), the air duct (5) is located inside the hollow rotating cylinder (4) and is connected to the inside of the hollow rotating cylinder (4), the air duct (5) is located at the inner end of the cylinder body (1) close to the inner bottom of the cylinder body (1), a plurality of air outlet openings (40) are provided on the side wall of the hollow rotating cylinder (4), and the air outlet openings (40) are respectively connected to the inside of the hollow rotating cylinder (4) and the inside of the cylinder body (1).

4. The biomass pellet rapid drying equipment according to claim 3, characterized in that: A rotating motor (20) for driving the hollow rotating cylinder (4) to rotate is fixedly connected to the outer top of the cylinder cover (2), and the rotating motor (20) comprises a rotating shaft (21), and the rotating shaft (21) passes through the cylinder cover (2) and extends into the cylinder body (1), and one end of the rotating shaft (21) facing the cylinder body (1) is detachably connected to one end of the hollow rotating cylinder (4) facing the cylinder cover (2), and a plurality of stirring rods (41) are fixedly connected to the outer cylinder wall (10) of the hollow rotating cylinder (4), and the stirring rods (41) extend from the outer cylinder wall (10) of the hollow rotating shaft (21) toward the inner cylinder wall (11) of the cylinder body (1).

5. The biomass pellet rapid drying equipment according to claim 4, characterized in that: A plurality of the air outlet openings (40) are arranged along the circumferential direction of the hollow rotating cylinder (4) to form a plurality of circumferential opening groups, and a plurality of the circumferential opening groups are arranged along the longitudinal direction of the hollow rotating cylinder (4) to form linear opening groups; A plurality of the stirring rods (41) are arranged along the circumferential direction of the hollow rotating cylinder (4) to form a plurality of groups of circular rod groups, and a plurality of groups of the circular rod groups are arranged along the longitudinal direction of the hollow rotating cylinder (4) to form a linear rod group.

6. The biomass pellet rapid drying equipment according to claim 2, characterized in that: The fan (50) is located on the side of the air duct (5) facing the inner wall end of the cylinder body (1), and a collecting bottle (6) is detachably connected to the air duct (5) just below the inner wall end of the cylinder body (1), and the interior of the collecting bottle (6) is connected to the air duct (5).

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