Air drying device for biomass particles

Abstract

The utility model relates to an air drying device for biomass particles, which belongs to the field of biomass particle processing and comprises an air drying bin. The stirring mechanism is arranged on the air drying bin and used for stirring the granular fuel in the air drying bin; the discharging screening assembly is arranged on the lower end face of the air drying bin in a communicating mode and comprises a discharging sleeve which is arranged on the lower end face of the air drying bin in a communicating mode; the screen is arranged on the inner side of the discharging sleeve in a sliding mode and used for screening the granular fuel; and the storage assembly is arranged on the outer side of the discharging and screening assembly and used for collecting powder screened out from the granular fuel. According to the biomass particle powder screening device, through the storage assembly, screened biomass particle powder can be collected, so that the biomass particle powder is subjected to secondary recycling, and waste of resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass pellet processing, and particularly relates to an air drying device for biomass pellets. Background Technique

[0002] Biomass pellets are processed by cold-state densification using a pressure roller and a ring die on crushed biomass straw, forestry waste and other raw materials under normal temperature conditions. The formed pellet fuel is convenient for storage and transportation, and greatly improves the combustion performance of biomass. China is a large energy-consuming country. Adjusting the energy structure and using biomass energy is an inevitable choice. After biomass is compressed and formed, its volume is greatly reduced, making it more convenient for transportation, storage and use, and solving the key problem of large-scale utilization of biomass. Therefore, this technology and equipment are very suitable for clean energy transformation of biomass power generation, industrial boilers, and new rural cooking fuels.

[0003] In the production of biomass pellets, it is usually necessary to dry them, and an air drying device is often used to dry the biomass pellets. However, during the air drying process of biomass pellets, biomass pellet powder is often generated. When such powder is mixed with biomass for use, it will affect the combustion effect of biomass pellets. Therefore, this application proposes an air drying device for biomass pellets to solve the above technical problems. Content of the Utility Model

[0004] In view of one or more of the above defects or improvement requirements of the prior art, the utility model provides an air drying device for biomass pellets, which has the advantage of improving the combustion effect of biomass pellets.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an air drying device for biomass pellets, including an air drying bin;

[0006] A stirring mechanism is arranged on the air drying bin and is used for stirring the pellet fuel in the air drying bin;

[0007] An outlet screening assembly is communicably arranged at the lower end surface of the air drying bin, and it includes an outlet sleeve communicably arranged at the lower end surface of the air drying bin; a screen is slidably arranged inside the outlet sleeve and is used for screening the pellet fuel;

[0008] A storage assembly is arranged outside the outlet screening assembly and is used for collecting the fines screened out from the pellet fuel.

[0009] As a further improvement of the utility model, the air drying bin further includes a feed pipe communicably arranged on the upper surface of the air drying bin;

[0010] A sealing cover is arranged outside the feed pipe;

[0011] The hot air blower can be communicatively arranged on the upper surface of the air drying bin.

[0012] As a further improvement of the present utility model, the inner side of the sealing cover is in threaded connection with the outer side of the feed pipe.

[0013] As a further improvement of the present utility model, the stirring mechanism includes an AC motor arranged on the upper surface of the air drying bin;

[0014] A transmission rod is arranged at the output end of the AC motor, and the transmission rod penetrates through the upper surface of the air drying bin;

[0015] Stirring rods are arranged on the outer side of the transmission rod;

[0016] Two material stirring plates are symmetrically arranged on the outer side of the transmission rod, and the lower end surface of the material stirring plate contacts the upper surface of the screen mesh.

[0017] As a further improvement of the present utility model, the number of the stirring rods is several;

[0018] The several stirring rods are divided into two groups, and the two groups of stirring rods are symmetrically arranged on the outer side of the transmission rod.

[0019] As a further improvement of the present utility model, the discharge screening assembly further includes an installation groove opened on the outer side of the discharge sleeve, and the installation groove communicates with the inner side of the discharge sleeve;

[0020] An installation sleeve is slidably arranged inside the installation groove, and the screen mesh is arranged inside the installation sleeve.

[0021] As a further improvement of the present utility model, the outer side of the installation sleeve is closely attached to the inner side of the installation groove.

[0022] As a further improvement of the present utility model, the storage assembly includes two fixing plates symmetrically arranged on the outer side of the discharge sleeve;

[0023] A fixing sleeve is arranged between the lower surfaces of the two fixing plates;

[0024] Two sliding grooves are symmetrically opened inside the fixing sleeve;

[0025] Two sliding blocks are respectively slidably arranged in the two sliding grooves;

[0026] A storage box is arranged between the two sliding blocks.

[0027] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0028] 1. In the preferred embodiment of the air-drying device for biomass pellets of the present utility model, through the arranged discharge screening assembly, the biomass pellets and the biomass pellet powder can be screened, so as to avoid a large amount of biomass pellet powder being mixed with the biomass pellets, thereby improving the combustion effect of the biomass pellets. At the same time, through the storage assembly, the screened biomass pellet powder can be collected, so as to recycle the biomass pellet powder secondly and avoid waste of resources.

[0029] 2. The air-drying device for biomass pellets in the preferred embodiment of the present utility model has a simple overall structure and is convenient to operate. It can not only avoid a large amount of biomass pellet powder being mixed with the biomass pellets, thereby improving the combustion effect of the biomass pellets, but also recycle the biomass pellet powder secondly and avoid waste of resources, having good use value and application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall three-dimensional structure schematic diagram of the preferred embodiment of the present utility model;

[0031] Figure 2 is the overall three-dimensional structure schematic diagram of the discharge screening assembly in the preferred embodiment of the present utility model;

[0032] Figure 3 is the exploded three-dimensional structure schematic diagram of the stirring mechanism in the preferred embodiment of the present utility model;

[0033] Figure 4 is the exploded three-dimensional structure schematic diagram of the storage assembly in the preferred embodiment of the present utility model.

[0034] In all the drawings, the same reference numerals represent the same technical features. Specifically: 1. Air-drying bin; 11. Feed pipe; 12. Sealing cover; 13. Hot air blower; 2. Stirring mechanism; 21. AC motor; 22. Transmission rod; 23. Stirring rod; 24. Pushing plate; 3. Discharge screening assembly; 31. Discharge sleeve; 32. Installation groove; 33. Installation sleeve; 34. Screen; 4. Storage assembly; 41. Fixed plate; 42. Fixed sleeve; 43. Sliding groove; 44. Sliding block; 45. Storage box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] In the embodiment, byFigures 1 to 4 Provided is a drying device for biomass pellets, optionally but not limited to including: a drying bin 1;

[0037] A stirring mechanism 2, arranged on the drying bin 1, for stirring the pellet fuel in the drying bin 1;

[0038] An outlet screening assembly 3, communicatively connected to the lower end surface of the drying bin 1, which includes an outlet sleeve 31 communicatively connected to the lower end surface of the drying bin 1; a screen 34 slidably arranged inside the outlet sleeve 31 for screening the pellet fuel;

[0039] A storage assembly 4, arranged outside the outlet screening assembly 3, for collecting the fine powder screened out from the pellet fuel.

[0040] In this embodiment, a drying device for biomass pellets of the present utility model is provided. By putting the pellet fuel to be dried into the drying bin 1, then the drying bin 1 blows hot air on the pellet fuel, and the stirring mechanism 2 stirs the pellet fuel in the drying bin 1, thereby improving the drying quality of the pellet fuel. When the pellet fuel is dried, the outlet screening assembly 3 can screen the powder generated during the drying of the pellet fuel and the pellet fuel, thereby preventing a large amount of powder and pellet fuel from being mixed together, which affects the use of the pellet fuel. Then, the storage assembly 4 can collect the screened powder, thereby recycling the powder and avoiding waste.

[0041] Furthermore, as Figure 1 shown, in a preferred embodiment of the present utility model, the drying bin 1 further includes a feed pipe 11 communicatively connected to the upper surface of the drying bin 1; a sealing cover 12 arranged outside the feed pipe 11; a hot air blower 13 communicatively connected to the upper surface of the drying bin 1.

[0042] Furthermore, the inner side of the sealing cover 12 is threadedly connected to the outer side of the feed pipe 11.

[0043] In this embodiment, multiple preferred embodiments of the drying bin 1 are provided. Through the feed pipe 11, the pellet fuel to be dried can be put into the drying bin 1, and then the feed pipe 11 is sealed by the sealing cover 12 to prevent the hot air in the drying bin 1 from flowing out too quickly. At the same time, the hot air blower 13 can send hot air into the drying bin 1 to dry the pellet fuel in the drying bin 1.

[0044] Furthermore, as Figure 2As shown in the figure, the stirring mechanism 2 in the preferred embodiment of the present utility model includes an AC motor 21 disposed on the upper surface of the air-drying bin 1; a transmission rod 22 disposed at the output end of the AC motor 21, and the transmission rod 22 penetrates the upper surface of the air-drying bin 1; a stirring rod 23 disposed outside the transmission rod 22; and two feeding plates 24 symmetrically disposed outside the transmission rod 22, and the lower end surface of the feeding plate 24 contacts the upper surface of the screen 34.

[0045] Furthermore, the number of the stirring rods 23 is several; the several stirring rods 23 are divided into two groups, and the two groups of stirring rods 23 are symmetrically disposed outside the transmission rod 22.

[0046] In this embodiment, multiple preferred embodiments of the stirring mechanism 2 are given. The transmission rod 22 is driven to rotate by the AC motor 21. The rotating transmission rod 22 drives the stirring rods 23 outside it to rotate. The rotating transmission rod 22 stirs the pellet fuel in the air-drying bin 1, thereby improving the air-drying efficiency and quality of the pellet fuel. Moreover, the transmission rod 22 also drives the feeding plates 24 to rotate, so that the feeding plates 24 stir the pellet fuel on the screen 34, preventing too much pellet fuel from blocking the screen 34 and affecting the screening effect of the pellet fuel and powder.

[0047] Further, as Figure 3 shown, the discharging and screening assembly 3 in the preferred embodiment of the present utility model further includes an installation groove 32 opened on the outside of the discharging sleeve 31, and the installation groove 32 communicates with the inside of the discharging sleeve 31; an installation sleeve 33 slidably disposed inside the installation groove 32, and the screen 34 is disposed inside the installation sleeve 33.

[0048] Furthermore, the outside of the installation sleeve 33 is closely attached to the inside of the installation groove 32.

[0049] In this embodiment, multiple preferred embodiments of the discharging and screening assembly 3 are given. The powder generated during the air-drying of the pellet fuel can be screened through the screen 34, thereby improving the combustion quality of the pellet fuel. When the pellet fuel is air-dried, the installation sleeve 33 is pulled out of the installation groove 32, and thus the pellet fuel in the air-drying bin 1 will be discharged from the discharging sleeve 31. Although the discharging sleeve 31 will cause some waste of the hot air blown by the hot air blower 13, it can also improve the fluidity of the hot air in the air-drying bin 1, making the air-drying of the pellet fuel in the air-drying bin 1 more uniform.

[0050] Further, as Figure 4As shown in the figure, the storage component 4 in the preferred embodiment of the present utility model includes two fixing plates 41 symmetrically arranged outside the discharge sleeve 31; a fixing sleeve 42 arranged between the lower surfaces of the two fixing plates 41; two sliding grooves 43 symmetrically formed inside the fixing sleeve 42; two sliding blocks 44 respectively slidably arranged in the two sliding grooves 43; and a storage box 45 arranged between the two sliding blocks 44.

[0051] In this embodiment, multiple preferred embodiments of the storage component 4 are given. The granular fuel powder screened by the discharge screening component 3 can be collected through the storage box 45, so that the powder of the granular fuel can be recycled secondly to avoid waste of resources. Then when the granular fuel needs to be discharged from the air-drying bin 1, the storage box 45 is first pulled out from the fixing sleeve 42, and the granular fuel powder in the storage box 45 is stored separately. Then the storage box 45 is newly arranged in the fixing sleeve 42, so that the storage box 45 can receive the air-dried granular fuel.

[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0053] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A biomass particle air drying device, characterized in that: The invention comprises an air drying chamber (1); A stirring mechanism (2) is provided on the air-drying bin (1) and is used to stir the granular fuel in the air-drying bin (1); A discharge screening assembly (3) communicatively arranged on the lower end surface of the air drying bin (1), comprising a discharge sleeve (31) communicatively arranged on the lower end surface of the air drying bin (1); a screen (34) slidably arranged on the inner side of the discharge sleeve (31) for screening the particle fuel; The storage component (4) is arranged outside the discharge screening component (3) and is used to collect the fragments screened out by the particle fuel.

2. The air drying device for biomass particles according to claim 1, characterized in that: The air-drying bin (1) further comprises a feed pipe (11) which is communicatively arranged on the upper surface of the air-drying bin (1); A sealing cover (12) is arranged on the outer side of the feed pipe (11); A hot air blower (13) is disposed on the upper surface of the air drying chamber (1) and can be connected thereto.

3. The air drying device for biomass particles according to claim 2, characterized in that: The inner side of the sealing cover (12) is threadably connected to the outer side of the feed pipe (11).

4. The air drying device for biomass particles according to claim 1, characterized in that: The stirring mechanism (2) comprises an AC motor (21) which is arranged on the upper surface of the air-drying bin (1); A transmission rod (22) is arranged at the output end of the AC motor (21), and the transmission rod (22) passes through the upper surface of the air-drying bin (1); A stirring rod (23) is arranged outside the transmission rod (22); Two material-shifting plates (24) are symmetrically arranged on the outer side of the transmission rod (22), and the lower end surfaces of the material-shifting plates (24) are in contact with the upper surface of the screen (34).

5. The air drying device for biomass particles according to claim 4, characterized in that: The number of the stirring rods (23) is several; The plurality of stirring rods (23) are divided into two groups, and the two groups of stirring rods (23) are symmetrically arranged on the outside of the transmission rod (22).

6. The air drying device for biomass particles according to claim 5, characterized in that: The discharge screening assembly (3) further comprises a mounting groove (32) which is opened on the outer side of the discharge sleeve (31), and the mounting groove (32) is communicated with the inner side of the discharge sleeve (31); The mounting sleeve (33) is slidably arranged on the inner side of the mounting groove (32), and the screen (34) is arranged on the inner side of the mounting sleeve (33).

7. The air drying device for biomass particles according to claim 6, characterized in that: The outer side of the installation sleeve (33) is tightly fitted with the inner side of the installation groove (32).

8. The air drying device for biomass particles according to claim 7, characterized in that: The storage assembly (4) comprises two fixing plates (41) symmetrically arranged on the outside of the discharge sleeve (31); A fixing sleeve (42) is arranged between the lower surfaces of the two fixing plates (41); Two sliding grooves (43) are symmetrically arranged on the inner side of the fixing sleeve (42); Two sliding blocks (44) are slidably disposed in the two sliding grooves (43); The storage box (45) is arranged between the two sliding blocks (44).

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