A biomass particle processing dryer

Abstract

The utility model relates to drying equipment technical field discloses a drying -machine for biomass particle processing, including material drying cylinder, the bottom support leg of the bottom of material drying cylinder four -around evenly is provided with, the even drying subassembly is provided in the material drying cylinder, even drying subassembly even is provided with a plurality of material support net, the top of material drying cylinder is provided with the exhaust pipe, the utility model discloses a drying -machine for biomass particle processing, wherein the even drying subassembly in the material drying cylinder, the contact support block in even drying subassembly can support a plurality of material support net that has biomass particle, thereby the hot air stream that the hot gas output pipe exhausts can reach every material support net vicinity more evenly, carries out the quick drying to the material that it places, improves the drying evenness of whole, and effectively avoided the drying hot air difficult to reach each material surface, and the problem that caused the uneven drying, low efficiency, improved the overall particle drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a dryer for biomass pellet processing. Background Technology

[0002] With the continuous advancement of science and technology, the research and development of bioenergy technology has become one of the world's major and popular topics. Biomass pellet fuel is an environmentally friendly new energy source produced through the processing of straw, rice straw, rice husks, peanut shells, corn cobs, camellia husks, cottonseed husks, and other "three wastes" (residue, waste materials, and waste residues). Biomass pellets are produced by cold-forming and densifying crushed biomass straw and forestry waste under ambient temperature conditions using pressure rollers and ring dies.

[0003] A search revealed a Chinese patent publication number (CN 222352782 U) disclosing a dryer for biomass pellet processing, comprising: a housing and a rotating mechanism; hot air blowers are uniformly fixedly installed on the housing; the rotating mechanism includes a main shaft rotatably connected inside the housing and a high-temperature resistant motor fixedly installed on the housing, the output shaft of the high-temperature resistant motor being fixedly connected to the main shaft; a support base is fixedly fitted on the main shaft; a first groove is uniformly formed on the top of the support base; a pallet cart is disposed inside the first groove; this dryer for biomass pellet processing, by setting a rotating mechanism inside the housing, allows pallets loaded with biomass pellets to be pushed into the first groove for positioning, thereby enabling the high-temperature resistant motor to drive the support base to rotate via the main shaft after starting, thus allowing multiple pallets to rotate at a uniform speed inside the housing; through the above arrangement, the biomass pellets on multiple pallets can be uniformly dried.

[0004] The dryer described in the aforementioned patent still has some shortcomings. In actual use, the existing biomass pellet dryers mostly blow the drying hot air directly onto the object to be dried through pipes. In order to increase the number of pellets dried, they mostly adopt a multi-layer parallel arrangement, which makes it difficult for the drying hot air to penetrate through multiple layers of pellets and be evenly blown onto the surface of each layer of material, resulting in low overall drying efficiency and uneven drying of the material. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dryer for biomass pellet processing. It solves the problem that in actual use, existing biomass pellet dryers mostly blow the drying hot air directly onto the material to be dried through pipes. In order to increase the number of pellets dried, they mostly adopt a multi-layer parallel arrangement, which makes it difficult for the drying hot air to penetrate through multiple layers of pellets and be evenly blown to the surface of each layer of material, resulting in low overall drying efficiency and uneven drying of materials.

[0006] This utility model provides the following technical solution: a dryer for biomass pellet processing, including a material drying cylinder, a side opening on the side of the material drying cylinder, a rotatable door on the side opening, bottom support legs evenly arranged around the bottom of the material drying cylinder, a uniform drying component arranged inside the material drying cylinder, a plurality of material support nets evenly arranged on the uniform drying component, and an exhaust pipe arranged at the top of the material drying cylinder; The uniform drying assembly includes three side support columns uniformly and vertically arranged inside the bottom wall of the material drying cylinder. The inner wall of the side support columns is uniformly and vertically arranged with several abutting support blocks. The material support net is placed on top of the abutting support blocks. The inner wall of the material drying cylinder is uniformly provided with several first annular grooves. The inner wall of the closed door is uniformly provided with several second annular grooves. The outer side of the material drying cylinder is uniformly provided with several semi-circular air inlet pipes. The inner side wall of the semi-circular air inlet pipes is uniformly connected with several hot air outlet pipes.

[0007] Preferred technical solution 1: The ends of the hot gas output pipes are all inserted into the first annular groove, and a hot gas external pipe is provided on the outside of the material drying cylinder.

[0008] Preferred technical solution 2: The ends of the second annular groove are all connected to the hot gas external pipe, and a valve is provided at the top of the hot gas external pipe.

[0009] Preferred technical solution three: The closed door is provided with two viewing windows.

[0010] This solution allows users to observe the drying status of materials placed on the material support net through a viewing window.

[0011] Preferred technical solution four: The first annular groove and the second annular groove have the same opening diameter and are located on the same horizontal plane.

[0012] This design enables the airflow entering the first annular groove to form an annular air passage along the second annular groove, thereby improving drying efficiency.

[0013] Preferred technical solution five: The hot gas output pipes are all inserted at an angle into the side wall of the first annular groove and extend into the material drying cylinder.

[0014] This design enables the drying hot air blown into the material drying cylinder through the hot air output pipe to enter the material drying cylinder along the inner wall of the first annular groove, increasing the time the hot air stays in the material drying cylinder and improving airflow to accelerate the drying of the material.

[0015] Compared with the prior art, the present invention provides a dryer for biomass pellet processing, which has the following beneficial effects: This invention features a uniform drying component within a material drying drum. The component includes a support block that supports several material support nets containing biomass pellets. Hot air is supplied to the external drying pipe and then transported through a semi-circular inlet pipe to the hot air outlet pipe. The hot air outlet pipe and the first annular groove are evenly positioned on the inner wall of the drying drum. This allows the hot air discharged through the outlet pipe to reach each material support net more evenly, rapidly drying the material and improving overall drying uniformity. It also effectively avoids the problem of uneven drying and low efficiency caused by insufficient hot air reaching the surface of each material, thus improving the overall pellet drying efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of the structure with the opening on the middle side; Figure 3 This is a schematic diagram of the internal cross-section of the structure of this utility model; Figure 4 For the present utility model Figure 3 Enlarged view of the structure of the semi-circular air intake pipe.

[0017] In the diagram: 1. Material drying cylinder; 2. Side opening; 3. Closed door; 4. Bottom support leg; 5. Uniform drying assembly; 6. Material support mesh; 7. Exhaust pipe; 501. Side support column; 502. Abutment support block; 503. First annular groove; 504. Second annular groove; 505. Semi-circular air inlet pipe; 506. Hot air outlet pipe; 507. Hot air external pipe; 508. Valve. Detailed Implementation

[0018] Please see Figures 1-4 , Example 1: A dryer for processing biomass pellets includes a material drying cylinder 1, a side opening 2 on the side of the material drying cylinder 1, a rotatable closing door 3 on the side opening 2, bottom support legs 4 evenly arranged around the bottom of the material drying cylinder 1, a uniform drying component 5 arranged inside the material drying cylinder 1, a plurality of material support nets 6 evenly arranged on the uniform drying component 5, and an exhaust pipe 7 arranged at the top of the material drying cylinder 1.

[0019] The uniform drying assembly 5 includes three side support columns 501 uniformly and vertically arranged on the inner side of the bottom wall of the material drying cylinder 1. Several abutment support blocks 502 are uniformly and vertically arranged on the inner wall of the side support columns 501. The material support net 6 is placed on the top of the abutment support blocks 502. Several first annular grooves 503 are uniformly opened on the inner wall of the material drying cylinder 1. Several second annular grooves 504 are uniformly opened on the inner wall of the closing door 3. Several semi-circular air inlet pipes 505 are uniformly arranged on the outer side of the material drying cylinder 1. Several hot air outlet pipes 506 are uniformly connected to the inner side wall of the semi-circular air inlet pipes 505. The ends of the hot air outlet pipes 506 are all inserted into the first annular grooves 503. A hot air external pipe 507 is provided on the outer side of the material drying cylinder 1. The ends of the second annular grooves 504 are all connected to the hot air external pipe 507. A valve 508 is provided at the top of the hot air external pipe 507.

[0020] Example 2: The difference between this example and Example 1 is that the closed door 3 is provided with two viewing windows.

[0021] This allows users to observe the drying degree of the material placed on the material support net 6 through a viewing window.

[0022] Example 3: The difference between this example and Example 1 is that the first annular groove 503 and the second annular groove 504 have the same opening diameter and are located on the same horizontal plane.

[0023] This allows the airflow entering the first annular groove 503 to form an annular air passage along the second annular groove 504, thereby improving drying efficiency.

[0024] Example 4: The difference between this example and Example 1 is that the hot gas output pipes 506 are all inclinedly inserted into the side wall of the first annular groove 503 and extend into the material drying cylinder 1.

[0025] This allows the drying hot air blown into the material drying cylinder 1 through the hot air output pipe 506 to enter the material drying cylinder 1 along the inner wall of the first annular groove 503, increasing the time the hot air stays in the material drying cylinder 1 and improving airflow to accelerate the drying of the material.

[0026] In this embodiment, because existing biomass pellet dryers mostly use hot air that is blown directly onto the material to be dried through pipes during actual use, and in order to increase the number of pellets dried, they are mostly arranged in multiple layers in parallel, it is difficult for the hot air to be blown evenly to the surface of each layer of material through multiple layers of pellets, resulting in low overall drying efficiency and uneven drying of the material.

[0027] In summary, in specific implementation, when the user needs to dry the pellets for biomass processing, the user first rotates the closed door 3, which is rotatably set at the side opening 2, and places appropriate pellets to be dried on the material support net 6, so that the abutting support block 502 set on the side of the side support column 501 in the uniform drying component 5 supports its bottom.

[0028] Next, by connecting the hot air external pipe 507 to the external drying hot air flow, and opening the valve 508, the hot air flow entering the external hot air external pipe 507 sequentially enters the second annular groove 504 connected thereto. The side of the second annular groove 504 is evenly connected to several hot air output pipes 506. The hot air output pipes 506 are inclinedly inserted into the first annular groove 503, so that the drying hot air flow is discharged into the material drying cylinder 1 through the hot air output pipes 506, and enters the material drying cylinder 1 along the inner wall of the first annular groove 503. Since the first annular groove 503 is evenly distributed from top to bottom in the material drying cylinder 1, the drying hot air flow entering the material drying cylinder 1 is more evenly distributed, so that the material particles placed on several material support nets 6 in the material drying cylinder 1 can be dried simultaneously, avoiding the situation where the drying hot air flow is difficult to effectively blow to the surface of each material.

[0029] Meanwhile, since the hot air output pipe 506 is inclinedly arranged in the first annular groove 503, the hot air entering the first annular groove 503 can also flow in a ring in the first annular groove 503 and the second annular groove 504 when it enters the inner wall of the material drying cylinder 1. This increases the continuous flow time of the hot air near the material, making the residence time of the hot air for drying longer, which is conducive to saving hot air resources. The humid hot air generated during the drying process can be discharged through the exhaust pipe 7 set at the top of the material drying cylinder 1, avoiding the residence of the humid hot air in the material drying cylinder 1, which is beneficial to the drying of biomass pellets.

Claims

1. A dryer for biomass pellet processing, comprising a material drying drum (1), characterized in that: The material drying cylinder (1) has a side opening (2) on its side, and a closing door (3) is rotatably provided on the side opening (2). Bottom support legs (4) are evenly provided around the bottom of the material drying cylinder (1). A uniform drying component (5) is provided inside the material drying cylinder (1). Several material support nets (6) are evenly provided on the uniform drying component (5). An exhaust pipe (7) is provided at the top of the material drying cylinder (1). The uniform drying assembly (5) includes three side support columns (501) uniformly and vertically arranged on the inner side of the bottom wall of the material drying cylinder (1). The inner wall of the side support column (501) is uniformly and vertically arranged with a number of abutting support blocks (502). The material support net (6) is placed on top of the abutting support blocks (502). The inner wall of the material drying cylinder (1) is uniformly provided with a number of first annular grooves (503). The inner wall of the closing door (3) is uniformly provided with a number of second annular grooves (504). The outer side of the material drying cylinder (1) is uniformly provided with a number of semi-circular air inlet pipes (505). The inner side wall of the semi-circular air inlet pipes (505) is uniformly connected with a number of hot air outlet pipes (506).

2. The dryer for biomass pellet processing according to claim 1, characterized in that: The ends of the hot air output pipes (506) are all inserted into the first annular groove (503), and the outer side of the material drying cylinder (1) is provided with a hot air external pipe (507).

3. A dryer for biomass pellet processing according to claim 2, characterized in that: The ends of the second annular groove (504) are all connected to the hot gas external pipe (507), and the top of the hot gas external pipe (507) is provided with a valve (508).

4. A dryer for biomass pellet processing according to claim 3, characterized in that: The closed door (3) is provided with two viewing windows.

5. A dryer for biomass pellet processing according to claim 4, characterized in that: The first annular groove (503) and the second annular groove (504) have the same opening diameter and are located on the same horizontal plane.

6. A dryer for biomass pellet processing according to claim 5, characterized in that: The hot gas output pipes (506) are all inclinedly inserted into the side wall of the first annular groove (503) and extend into the material drying cylinder (1).

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