Biomass pulverizing and conveying device

Abstract

The utility model relates to the technical field of biomass pulverizing and conveying, in particular to a biomass pulverizing and conveying device. The device comprises a mounting bottom plate, a screening and transporting mechanism, a material returning mechanism and a sealing box; the screening and transporting mechanism is arranged at the top of the mounting bottom plate; the material returning mechanism is arranged at the end of the screening and conveying mechanism. And the closed box is arranged on the screening and transporting mechanism. Through the arrangement of the screening and conveying mechanism, the motor I drives the material turning plate to turn over and stir ground powder and drives the beating block to repeatedly knock the screening plate to enable the screening plate to vibrate, so that accumulated powder can be turned over and scattered through mechanical movement, and powder particles are fully exposed on the surface of the screening plate; the screening efficiency reduction caused by agglomeration or blockage is avoided, the screening speed is increased, meanwhile, the movement of powder on the screen can be accelerated through vibration, fine particles are promoted to pass through screen holes, the blocking risk of the screen is reduced, the powder load can be evenly distributed, local screen overload is avoided, and the service life of the screen is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of biomass milling and conveying technology, and in particular to a biomass milling and conveying device. Background Technology

[0002] Biomass refers to organic matter derived from organisms such as plants, animals, and microorganisms. It can be used as an energy source or industrial raw material. Biomass milling involves crushing, drying, and grinding biomass raw materials into fine powder to improve combustion efficiency or facilitate subsequent processing.

[0003] Chinese Patent Publication No. CN119076150A discloses a biomass pulverizing and conveying device, comprising: a support frame; a receiving box, mounted on the support frame, having from top to bottom a receiving cavity, a pulverizing cavity, a filtering cavity, and a conveying cavity; a pulverizing component, disposed within the receiving cavity of the receiving box, for pulverizing biomass powder; a filtering component, disposed within the filtering cavity of the receiving box, for filtering biomass powder; a conveying component, connected to the conveying cavity of the receiving box, for conveying biomass powder; and an exhaust component, disposed on one side of the receiving cavity of the receiving box, for exhausting gas from the receiving box and filtering dust from the gas. This invention effectively filters agglomerated raw materials through the pulverizing and filtering components, and the filtered raw materials are mechanically conveyed by the conveying component, preventing powder from agglomerating during transport, thus preventing combustion efficiency from being affected by raw material clumping. Furthermore, the exhaust component filters dust, preventing dust from escaping and ensuring an overall clean working environment.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: the existing biomass powdering and conveying devices cannot automatically screen out unqualified powders for re-grinding during transportation, resulting in poor production quality of biomass powders. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that it is impossible to automatically screen out unqualified biomass powder and re-grind it, and to propose a biomass powdering and conveying device.

[0006] The technical solution of this utility model is: a biomass milling and conveying device, including a mounting base plate; and further including:

[0007] The screening and transport mechanism is set on top of the mounting base plate. It is used to tumble, vibrate, screen and classify the ground biomass powder, and transport the screened powder in two directions.

[0008] The recycling mechanism is located at the end of the screening and conveying mechanism and on top of the mounting base plate. It is used to recycle unqualified biomass powder for re-grinding.

[0009] The sealed box is mounted on the screening and conveying mechanism. A screening plate is installed inside the sealed box, and a conveying plate is installed at the bottom of the sealed box. The screening plate is tilted to the lower left, and the conveying plate is tilted to the lower right. The screening plate has multiple filter holes for the qualified biomass powder to fall onto the conveying plate. The conveying plate transports the qualified powder to the outside for collection. The sealed box is a sealed box, so that the powder remains sealed during vibration, transportation, and screening.

[0010] Preferably, a connecting frame is provided on the top of the mounting base plate, a grinder is provided on the top of the connecting frame, and a feed hopper is provided on the top of the grinder.

[0011] Preferably, the screening and transport mechanism includes a support column, a guide block, a tumbling assembly, and a hammering assembly;

[0012] The support column is set on the top of the mounting base plate, and the top of the support column is connected to the bottom of the enclosed box. The guide block is set on the screening plate and located at the bottom.

[0013] The stirring component is installed on the enclosed box and located above the screening plate, and is used to stir and screen biomass powder.

[0014] The striking component is installed on the enclosed box and located below the screening plate, and is used to strike the screening plate to drive its vibration to assist in screening.

[0015] Preferably, the material-turning assembly includes a fixed frame, a motor, a rotating shaft, and a material-turning plate;

[0016] The fixed frame is located on the outside of the enclosed box, the motor is located on the inside of the fixed frame, the rotating shaft is located at the output end of the motor, the tilting plate is located on the outside of the rotating shaft, the end of the rotating shaft near the motor is provided with a synchronous pulley, and the outside of the synchronous pulley is provided with a synchronous belt.

[0017] Preferably, the striking assembly includes a power frame, a connecting shaft, and a spacer bar;

[0018] The power frame is located on the outside of the rotating shaft, the connecting shaft is rotatably mounted on the enclosed box, the baffle is located at the end of the connecting shaft and directly below the power frame, a rotating rod is located on the outside of the connecting shaft, a striking block is located at the end of the rotating rod away from the connecting shaft, a spring is located at the bottom of the rotating rod, and a mounting plate is located at the bottom of the spring.

[0019] Preferably, the return mechanism includes a guide tube, a return tube, an inclined tube, and a motor.

[0020] The guide tube is located at the end of the closed box and at the bottom of the screening plate. The return pipe is located at the end of the guide tube away from the closed box. The inclined tube is located at the top of the return pipe. The second motor is located inside the return pipe. The output end of the second motor is equipped with a second rotating shaft. A partition is rotatably installed at the end of the second rotating shaft close to the second motor. A spiral conveying plate is installed on the outside of the second rotating shaft. A sealing block is installed at the top of the inside of the return pipe.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] 1. Through the setting of the screening and conveying mechanism, the motor drives the tipping plate to stir the ground powder and drives the striking block to repeatedly strike the screening plate, causing the screening plate to vibrate. This mechanical movement turns and disperses the accumulated powder, so that the powder particles are fully exposed on the surface of the screening plate, avoiding the decrease in screening efficiency due to agglomeration or blockage, and improving the screening speed. At the same time, the vibration can accelerate the movement of powder on the screen, promote the passage of fine particles through the screen holes, and push large particles or impurities to the discharge port, thereby removing powder or fibers attached to the screen, reducing the risk of screen blockage, and also evenly distributing the powder load, avoiding local screen overload, and extending the service life of the screen.

[0023] 2. Through the setting of the return material mechanism, the second motor drives the spiral conveyor plate to rotate, thereby returning the unqualified powder to the grinder through the inclined tube. This allows the unqualified powder to be directly transported back to the grinder, forming a closed-loop process of "grinding-screening-returning". This avoids production interruptions caused by manual intervention, speeds up the processing efficiency of biomass, and allows the powder to be sent back to the grinder in real time, reducing material loss. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0025] Figure 2 A structural diagram for screening transportation agencies;

[0026] Figure 3 A schematic diagram of the internal structure of the transportation agency;

[0027] Figure 4 for Figure 3 Enlarged diagram of A in the middle;

[0028] Figure 5 This is a schematic diagram of the internal structure of the material return mechanism.

[0029] Reference numerals in the attached drawings: 1. Mounting base plate; 2. Connecting frame; 3. Grinding machine; 4. Feed hopper; 501. Support column; 502. Enclosed box; 503. Screening plate; 504. Conveying plate; 505. Guide block; 506. Motor 1; 507. Fixing frame; 508. Rotating shaft 1; 509. Synchronous pulley; 510. Synchronous belt; 511. Power frame; 512. Tilting plate; 513. Connecting shaft; 514. Baffle bar; 515. Rotating rod; 516. Striking block; 517. Spring; 518. Mounting plate; 601. Guide tube; 602. Return tube; 603. Inclined tube; 604. Motor 2; 605. Partition plate; 606. Rotating shaft 2; 607. Screw conveyor plate; 608. Enclosed block. Detailed Implementation

[0030] Example 1

[0031] like Figures 1-4 As shown, the present invention proposes a biomass powdering conveying device, which includes a mounting base plate 1, a screening and conveying mechanism, a return material mechanism, and a closed box 502.

[0032] The screening and transport mechanism is set on the top of the mounting base plate 1. It is used to tumble, vibrate, screen and classify the ground biomass powder, and transport the screened powder in two directions.

[0033] The return material mechanism is located at the end of the screening and conveying mechanism and on top of the mounting base plate 1. It is used to return unqualified biomass powder for re-grinding.

[0034] The enclosed box 502 is installed on the screening and conveying mechanism. A screening plate 503 is installed inside the enclosed box 502, and a conveying plate 504 is installed at the bottom of the enclosed box 502. The screening plate 503 is inclined to the lower left, and the conveying plate 504 is inclined to the lower right. The screening plate 503 is provided with multiple filter holes for the qualified biomass powder to fall onto the conveying plate 504. The conveying plate 504 transports the qualified powder to the outside for collection. The enclosed box 502 is a sealed box, so that the powder remains sealed during vibration, transportation and screening.

[0035] The top of the mounting base plate 1 is equipped with a connecting frame 2, the top of the connecting frame 2 is equipped with a grinder 3, and the top of the grinder 3 is equipped with a feed hopper 4. The grinder 3 is used to crush and grind biomass into powder. The opening of the feed hopper 4 faces upward, which makes it easy to feed more biomass material at one time.

[0036] The screening and transport mechanism includes a support column 501, a guide block 505, a turning component, and a striking component. The support column 501 is located on the top of the mounting base plate 1, and the top of the support column 501 is connected to the bottom of the enclosed box 502. The guide block 505 is located on the screening plate 503 and at the bottom, and is used to concentrate the powder on both sides to the middle for transport. The turning component is located on the enclosed box 502 and above the screening plate 503, and is used to turn and screen the biomass powder. The striking component is located on the enclosed box 502 and below the screening plate 503, and is used to strike the screening plate 503 to drive its vibration to assist in screening. The material-turning assembly includes a fixed frame 507, a motor 506, a rotating shaft 508, and a turning plate 512. The fixed frame 507 is located on the outside of the enclosed box 502, the motor 506 is located on the inside of the fixed frame 507, the rotating shaft 508 is located at the output end of the motor 506, the turning plate 512 is located on the outside of the rotating shaft 508, a synchronous pulley 509 is located at the end of the rotating shaft 508 near the motor 506, and a synchronous belt 510 is located on the outside of the synchronous pulley 509. The synchronous pulley 509 and the rotating shaft 506 are connected. Three synchronous pulleys 508 are arranged at equal intervals on the closed box 502. Two adjacent synchronous pulleys 509 are connected by a synchronous belt 510. When the motor 506 is started, the motor 506 drives the rotating shaft 508 to rotate clockwise. The rotating shaft 508 drives the turning plate 512 to rotate. At the same time, the rotating shaft 508 drives the synchronous belt 510 to rotate through the synchronous pulleys 509. The synchronous belt 510 drives the three synchronous pulleys 509 to rotate in the same direction, so that the three turning plates 512 rotate synchronously to stir and screen the biomass powder. The striking assembly includes a power frame 511, a connecting shaft 513, and a baffle bar 514. The power frame 511 is located outside the rotating shaft 508. The connecting shaft 513 is rotatably mounted on the enclosed box 502. The baffle bar 514 is located at the end of the connecting shaft 513 and directly below the power frame 511. A rotating rod 515 is located outside the connecting shaft 513. Multiple rotating rods 515 are equidistantly arranged on the connecting shaft 513. A striking block 516 is located at the end of the rotating rod 515 away from the connecting shaft 513. A spring 517 is located at the bottom of the rotating rod 515. A mounting plate 518 is located at the bottom of the spring 517. Both ends of the mounting plate 518 are connected to the inner side of the enclosed box 502. The rotating shaft drives the rotating frame to rotate clockwise. The rotation of the rotating frame and the spring 517 work together to drive the striking block 516 to strike the bottom of the screening plate 503, thereby causing the screening plate 503 to vibrate.

[0037] Example 2

[0038] like Figure 5 As shown, this utility model proposes a biomass powdering and conveying device. Compared with Embodiment 1, this embodiment details the structure of the material return mechanism.

[0039] The material return mechanism includes a guide tube, a return pipe 602, an inclined tube 603, and a second motor 604. The guide tube 601 is located at the end of the enclosed box 502 and at the bottom of the screening plate 503. The return pipe 602 is located at the end of the guide tube away from the enclosed box 502. The inclined tube 603 is located at the top of the return pipe 602. The second motor 604 is located inside the return pipe 602. A rotating shaft 606 is located at the output end of the second motor 604. A partition 605 is rotatably mounted on the end of the rotating shaft 606 near the second motor 604. The outer side of the partition 605 and the return pipe... The inner side of the pipe 602 is connected to the outer side of the rotating shaft 606, and a spiral conveying plate 607 is provided. The outer side of the spiral conveying plate 607 is in contact with the inner side of the return pipe 602. A sealing block 608 is provided at the top of the inner side of the return pipe 602. Unqualified biomass powder falls to the bottom of the spiral conveying plate 607 through the guide block. The motor 604 drives the spiral conveying plate 607 to rotate, thereby transporting the powder upward. When it is transported to the top, it enters the inclined pipe 603 and slides down the inclined pipe 603 to the top of the feed hopper 4, and re-enters the grinder 3 for grinding.

[0040] In summary, when using this utility model, biomass raw materials are fed into the grinder 3 through the feed hopper 4 for crushing and grinding. The ground powder falls onto the screening plate 503 for transport and screening. Motor 1 506 and motor 2 604 are started. Motor 1 506 drives the rotating shaft 1 508 to rotate clockwise. The rotating shaft 1 508 drives the tilting plate 512 to rotate. The rotating shaft 1 508 drives the synchronous belt 510 to rotate via the synchronous pulley 509. The synchronous belt 510 drives the three synchronous pulleys 509 to rotate in the same direction, thus causing the three tilting plates 512 to rotate synchronously to agitate and assist in screening the biomass powder. Simultaneously, the rotating shaft drives the rotating frame to rotate clockwise. When the rotating frame rotates to the baffle rod 514, it drives the baffle rod 514 to rotate. The baffle rod 514 is connected to the connecting shaft 51... 3 drives the rotating rod 515 to rotate counterclockwise. At this time, the spring 517 is compressed. After the power frame 511 continues to rotate and disengages from the partition rod 514, the rotating rod 515 drives the striking block 516 to strike the bottom of the screening plate 503 under the action of the spring 517, thereby causing the screening plate 503 to vibrate. The qualified separated material slides down to the outside of the device through the conveyor plate 504 for collection. The unqualified powder falls to the bottom of the screw conveyor plate 607 through the guide block. The motor 604 drives the screw conveyor plate 607 to rotate through the rotating shaft 606, thereby transporting the powder upward. When it is transported to the closing block 608, the powder enters the inclined tube 603 under the guidance of the closing block 608, and slides down the inclined tube 603 to the top of the feed hopper 4, and re-enters the grinding mill 3 for grinding.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A biomass milling conveying device, comprising a mounting base plate (1); characterized in that, Also includes: The screening and transport mechanism is set on the top of the mounting base plate (1) and is used to tumble, vibrate, screen and classify the ground biomass powder, and transport the screened powder in two directions. The recycling mechanism is located at the end of the screening and transport mechanism and at the top of the mounting base plate (1), and is used to recycle unqualified biomass powder. The enclosure (502) is mounted on the screening and conveying mechanism. A screening plate (503) is mounted on the inner side of the enclosure (502), and a conveying plate (504) is mounted on the bottom of the enclosure (502). The screening plate (503) is inclined to the lower left, and the conveying plate (504) is inclined to the lower right. The screening plate (503) has multiple filter holes for passing the qualified biomass powder through and onto the conveying plate (504). The conveying plate (504) transports the qualified powder to the outside for collection. The enclosure (502) is a sealed enclosure, which keeps the powder sealed during vibration, transportation, and screening.

2. The biomass milling and conveying device according to claim 1, characterized in that, A connecting frame (2) is provided on the top of the mounting base plate (1), a grinder (3) is provided on the top of the connecting frame (2), and a feed hopper (4) is provided on the top of the grinder (3).

3. The biomass milling and conveying device according to claim 1, characterized in that, The screening and transport mechanism includes a support column (501), a guide block (505), a turning component, and a hammering component; The support column (501) is set on the top of the mounting base plate (1), the top of the support column (501) is connected to the bottom of the enclosed box (502), and the guide block (505) is set on the screening plate (503) and located at the bottom. The stirring component is set on the enclosed box (502) and above the screening plate (503) for stirring and screening biomass powder; The striking component is located on the enclosed box (502) and below the screening plate (503) to strike the screening plate (503) and drive it to vibrate to assist in screening.

4. The biomass milling and conveying device according to claim 3, characterized in that, The material turning assembly includes a fixed frame (507), a motor (506), a rotating shaft (508), and a turning plate (512); The fixed frame (507) is located on the outside of the enclosed box (502), the motor (506) is located on the inside of the fixed frame (507), the rotating shaft (508) is located at the output end of the motor (506), the flipping plate (512) is located on the outside of the rotating shaft (508), the end of the rotating shaft (508) near the motor (506) is provided with a synchronous pulley (509), and the outside of the synchronous pulley (509) is provided with a synchronous belt (510).

5. The biomass milling and conveying device according to claim 4, characterized in that, The striking assembly includes a power frame (511), a connecting shaft (513), and a baffle bar (514); The power frame (511) is located on the outside of the rotating shaft (508), the connecting shaft (513) is rotatably mounted on the enclosed box (502), the baffle rod (514) is located at the end of the connecting shaft (513) and directly below the power frame (511), a rotating rod (515) is provided on the outside of the connecting shaft (513), a striking block (516) is provided at the end of the rotating rod (515) away from the connecting shaft (513), a spring (517) is provided at the bottom of the rotating rod (515), and a mounting plate (518) is provided at the bottom of the spring (517).

6. The biomass milling and conveying device according to claim 1, characterized in that, The material return mechanism includes a guide tube, a material return tube (602), an inclined tube (603), and a second motor (604); The guide tube (601) is located at the end of the closed box (502) and at the bottom of the screening plate (503). The return pipe (602) is located at the end of the guide tube away from the closed box (502). The inclined tube (603) is located at the top of the return pipe (602). The second motor (604) is located inside the return pipe (602). The output end of the second motor (604) is provided with a second rotating shaft (606). The end of the second rotating shaft (606) near the second motor (604) is provided with a partition plate (605). The outer side of the second rotating shaft (606) is provided with a spiral conveyor plate (607). The top of the inner side of the return pipe (602) is provided with a sealing block (608).

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