Drying device for biomass fuel raw material processing

Abstract

The invention relates to the technical field of biomass fuel raw material drying, in particular to a biomass fuel raw material processing drying device which comprises a support, a drying mechanism and a feeding mechanism, the drying mechanism and the feeding mechanism are mounted on the support, one end of the feeding mechanism extends into a screening mechanism, and a scattering mechanism is mounted in the feeding mechanism; a material receiving mechanism located at the bottom of the drying mechanism is installed on the support. Raw materials added from the feeding mechanism fall into the screen drum to be dried, the raw materials are conveyed by the spiral blades along with movement of the screen drum, powder and sand in the raw materials are screened out when the screen drum rotates, the powder and the sand fall onto the material receiving mechanism on the support, and the powder and the sand fall into the screen drum while the screen drum drives a limiting ring to rotate and guide. An abutting plate on the side wall of a limiting ring intermittently abuts against and presses an arc-shaped fixing frame on a material receiving plate, then the material receiving plate shakes with a limiting shaft as a fulcrum, and raw material powder and gravel accumulated on the material receiving plate are automatically cleaned while screening is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of drying biomass fuel raw materials, in particular to a drying device for processing biomass fuel raw materials. Background Art

[0002] Biomass fuel refers to the burning of biomass materials as fuel, which is generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.), which is mainly different from fossil fuels; during processing, agricultural and forestry waste is used as raw materials, and is made into biomass fuel through processes such as crushing, mixing, extrusion, and drying. Biomass pellet fuel can replace coal-fired power generation and is used in heating, household electricity and other scenarios. It can be used to generate heat and high-temperature steam in the processing of industrial products such as textiles, printing and dyeing, papermaking, food, rubber, plastics, chemicals, and medicines.

[0003] However, when drying the raw materials of the current biomass fuel, raw materials such as straw and sawdust are poured into the interior of the screen, and the raw materials are transported by spiral blades. A heating plate is installed on the outer shell of the screen to dry the raw materials in the screen, and fine raw material powder or sand and gravel fall off as the screen rotates, thereby removing impurities from the fuel; as the screen rotates, the raw material powder and sand and gravel fall onto the receiving plate at the bottom of the screen, which has an arc-shaped structure and is fixed on a bracket. No scraping mechanism is provided on the receiving plate, so the raw material powder is easy to accumulate and it is inconvenient to clean the raw material powder on the receiving plate; when the raw materials are added to the interior of the screen, they are directly added from one end of the screen, and some raw materials with high humidity are easy to agglomerate. If they are directly added to the interior of the screen without being broken up, they need to be rolled for a long time inside the screen to be broken up, which is not conducive to the drying of the raw materials; the dried raw materials fall directly into the interior of the collecting bucket, and the volume of the dried raw materials will increase. The raw materials are not pressed when they are unloaded, which not only occupies a large area, but also easily causes blockage at the collecting bucket. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a drying device for processing biomass fuel raw materials.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a drying device for processing biomass fuel raw materials, comprising a bracket, a drying mechanism installed on the bracket, and a feeding mechanism, wherein a screening mechanism is installed on the drying mechanism, one end of the feeding mechanism extends to the interior of the screening mechanism, a scattering mechanism is installed inside the feeding mechanism, a material receiving mechanism located at the bottom of the drying mechanism is installed on the bracket, and a material pushing mechanism is installed on the bracket; the drying mechanism comprises a shell, a shell with a bottom opening is fixedly connected to the bracket, the screening mechanism comprises a screen cylinder, the interior of the shell is rotatably connected with the screen cylinder, one end of the screen cylinder is fixedly connected with a limiting ring, the material receiving mechanism comprises a contact plate, the side wall of the limiting ring is fixedly connected with the contact plate with an arc-shaped end portion, two limiting shafts are relatively rotatably connected to the inner side of the bracket, a receiving plate is fixedly connected between the two limiting shafts, a fixed frame that contacts the contact plate is fixedly connected at the surface edge of the receiving plate, and a damper is rotatably connected between the bottom of the receiving plate and the bracket.

[0006] Specifically, the material receiving plate is arranged obliquely, and the cross section of the material receiving plate is an arc-shaped structure, and the length of the material receiving plate is greater than the length of the screen drum.

[0007] Specifically, the top of the fixing frame is an arc-shaped structure, and the abutment plates are fixed to the side wall of the limiting ring in a ring array.

[0008] Specifically, the drying mechanism further includes a heating plate and an air outlet. Two heating plates are relatively mounted on the shell, and an air outlet is provided on the top of the shell.

[0009] Specifically, the screening mechanism also includes a first motor, which is installed on the outer casing, and the output end of the first motor is connected to a gear disk through a coupling, and the end of the screen cylinder away from the limiting ring is fixedly connected to a gear ring, and the gear ring is meshed with the gear disk, and two rollers are connected to the bracket for relative rotation, and the two rollers are rollingly connected to the limiting ring, and the inner wall of the screen cylinder is fixedly connected to a spiral blade.

[0010] Specifically, the feeding mechanism includes a side frame, the side wall of the bracket is fixedly connected to the side frame, the top of the side frame is fixedly connected to a feed hopper, the bottom of the feed hopper is fixedly connected to a lower hopper, and one end of the lower hopper extends to the interior of the screen cylinder.

[0011] Specifically, the breaking mechanism includes two rotating shafts, and the inside of the feed hopper is connected to the two rotating shafts for relative rotation. A plurality of stirring rods are fixed on the two rotating shafts in a spiral shape and at equal intervals. One end of the two rotating shafts is respectively fixedly connected to a first gear and a second gear, and the first gear is meshed with the second gear. A second motor is installed on the feed hopper, and the output end of the second motor is fixedly connected to one of the rotating shafts.

[0012] Specifically, the breaking mechanism also includes two slide grooves, and two slide grooves are vertically opened on both sides of the feed hopper. The insides of the two slide grooves are slidably connected with sliders with inverted L-shaped side structures. An intermediate rod located at the center of the feed hopper is fixedly connected between the two sliders, and a discharge plate is fixedly connected to the intermediate rod. A connecting rod is rotatably connected between the second gear and one of the sliders.

[0013] Specifically, the cross section of the unloading plate is an umbrella-shaped structure, and openings on both sides of the unloading plate are arranged at equal distances.

[0014] Specifically, the pushing mechanism includes a feeding plate, a feeding plate located at the bottom of the limiting ring is obliquely fixedly connected to the bracket, an electric push rod is installed on the bracket, the telescopic end of the electric push rod is fixedly connected to the pushing plate, the outer side of the pushing plate is slidably connected to a collecting bucket, the collecting bucket is located at the bottom of the feeding plate, one side of the collecting bucket is connected to a connecting box opposite to the pushing plate, a guide rail with a groove on the inner wall is fixedly connected to the end edge of the connecting box, a sealing plate with an inverted L-shaped cross-section is slidably connected to the inside of the guide rail, and the sealing plate is in contact with the end of the connecting box.

[0015] The beneficial effects of the present invention are: (1) The drying device for processing biomass fuel raw materials described in the present invention has a screening mechanism installed inside the drying mechanism on the bracket. After the raw materials are added from the feeding mechanism, they fall into the inside of the screen drum for drying. As the screen drum moves, the raw materials are transported by the spiral blades, and the screen drum screens out the powder and sand in the raw materials when it rotates, and the powder and sand in the raw materials fall onto the receiving mechanism on the bracket. As the screen drum drives the limiting ring to rotate and guide, the contact plate on the side wall of the limiting ring will intermittently contact and press the arc-shaped fixed frame on the receiving plate, and then the receiving plate will vibrate with the limiting shaft as the fulcrum, so that the raw material powder and sand accumulated on the receiving plate can be automatically cleaned while screening.

[0016] (2) The drying device for processing biomass fuel raw materials described in the present invention has a dispersing mechanism installed inside the feeding mechanism. After the raw materials are added into the feeding mechanism, the second motor is started to realize the relative rotation of the two rotating shafts by the first gear and the second gear. The raw materials can be dispersed by the stirring rod to prevent some raw materials with high humidity and agglomeration from falling directly into the screen drum to prolong the drying time. When the second gear rotates, it drives the connecting rod to rotate. One end of the connecting rod is rotatably connected to the slider, so that the intermediate rod drives the discharge plate to move up and down, so that the dispersed raw materials can be pressed and discharged, avoiding blockage when the raw materials are discharged.

[0017] (3) The drying device for processing biomass fuel raw materials described in the present invention has a material return mechanism installed at one end of the bracket. The dried raw materials fall from the screen drum to the discharge plate and then fall into the collecting bucket. The electric push rod can be activated to enable the push plate to squeeze the fluffy raw materials in the collecting bucket and push them into the connecting box. Since one end of the connecting box is sealed by the sealing plate, the raw materials are squeezed and shrunk, the floor space is reduced, the clogging of the collecting bucket is avoided, and the packaging of the dried raw materials is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection structure of the screen drum, spiral blades, feed hopper and second motor of the present invention; Figure 3 It is a schematic diagram of the connection structure of the housing, the screen drum, the heating plate and the material receiving plate of the present invention; Figure 4 It is a schematic diagram of the connection structure of the housing, the screen drum and the spiral blades of the present invention; Figure 5 It is a schematic diagram of the connection structure of the bracket, the limiting ring and the fixing frame of the present invention; Figure 6 It is a schematic diagram of the connection structure of the material receiving plate, the abutment plate and the fixing frame of the present invention; Figure 7 is a schematic diagram of a damper of the present invention; Figure 8 It is a schematic diagram of the connection structure of the feed hopper, the first gear and the second gear of the present invention; Fig. 9 It is a schematic diagram of the connection structure of the rotating shaft, the stirring rod and the discharge plate of the present invention; Fig.10 It is a schematic diagram of the connection structure of the feed hopper, the chute and the slider of the present invention; Fig.11 It is a schematic diagram of the connection structure of the collecting bucket, the pushing plate and the sealing plate of the present invention; Fig.12 It is a schematic diagram of the connection structure of the guide rail and the sealing plate of the present invention.

[0020] In the figure: 1, bracket; 2, drying mechanism; 201, shell; 202, heating plate; 203, air outlet; 3, screening mechanism; 301, first motor; 302, toothed disc; 303, toothed ring; 304, limiting ring; 305, roller; 306, screen cylinder; 307, spiral blade; 4, feeding mechanism; 401, feeding hopper; 402, side frame; 403, lower hopper; 5, scattering mechanism; 501, rotating shaft; 502, second motor; 503, stirring rod; 50 4. First gear; 505. Sliding block; 506. Second gear; 507. Connecting rod; 508. Slide groove; 509. Intermediate rod; 510. Discharge plate; 6. Receiving mechanism; 601. Receiving plate; 602. Damper; 603. Resistance plate; 604. Fixed frame; 605. Limiting shaft; 7. Pushing mechanism; 701. Discharge plate; 702. Electric push rod; 703. Collecting bucket; 704. Pushing plate; 705. Connecting box; 706. Guide rail; 707. Sealing plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 12 As shown, a drying device for processing biomass fuel raw materials according to the present invention comprises a support 1, a drying mechanism 2 installed on the support 1, and a feeding mechanism 4, wherein a screening mechanism 3 is installed on the drying mechanism 2, one end of the feeding mechanism 4 extends to the interior of the screening mechanism 3, a scattering mechanism 5 is installed inside the feeding mechanism 4, a receiving mechanism 6 located at the bottom of the drying mechanism 2 is installed on the support 1, and a pushing mechanism 7 is installed on the support 1; The bracket 1 is fixedly connected to a shell 201 with an opening at the bottom, two heating plates 202 are relatively mounted on the shell 201, an air outlet 203 is provided on the top of the shell 201, a screen drum 306 is rotatably connected to the inside of the shell 201, one end of the screen drum 306 is fixedly connected to a limiting ring 304, a first motor 301 is mounted on the shell 201, an output end of the first motor 301 is connected to a toothed disc 302 via a coupling, one end of the screen drum 306 away from the limiting ring 304 is fixedly connected to a toothed ring 303, the toothed ring 303 is meshed with the toothed disc 302, and the bracket 1 Two rollers 305 are connected to rotate relatively on the upper side, and the two rollers 305 are rollingly connected to the limiting ring 304. The inner wall of the screen drum 306 is fixedly connected with a spiral blade 307, and the side wall of the limiting ring 304 is fixedly connected with a contact plate 603 with an arc-shaped end structure. Two limiting shafts 605 are connected to rotate relatively on the inner side of the bracket 1, and a receiving plate 601 is fixedly connected between the two limiting shafts 605. A fixed frame 604 that contacts the contact plate 603 is fixedly connected to the surface edge of the receiving plate 601, and a damper 602 is rotatably connected between the bottom of the receiving plate 601 and the bracket 1; The scattered raw materials fall from the lower hopper 403 into the inside of the screen drum 306, and the gear ring 303 drives the screen drum 306 to rotate inside the shell 201. The limiting ring 304 at the other end of the screen drum 306 is limited by the roller 305 on the bracket 1, ensuring that the screen drum 306 does not move axially, and the roller 305 and the limiting ring 304 are rollingly connected to reduce the resistance of the screen drum 306 when it rotates. As the screen drum 306 rotates, the spiral blades 307 on its inner wall transport the raw materials toward the lower material plate 701, and the raw materials can be turned over. The two heating plates 202 can be started to generate heat to dry the raw materials inside the screen drum 306. When the raw materials are dried and transported, the smaller raw material powder and sand and gravel inside will be sieved by the screen drum 306 and removed from the shell The bottom opening of 201 falls onto the receiving plate 601. As the sieve drum 306 drives the limiting ring 304 to rotate, the multiple contact plates 603 on the side wall of the limiting ring 304 will also rotate in a circle. Then, the multiple contact plates 603 intermittently knock the fixed frame 604 on the receiving plate 601, and the top of the fixed frame 604 is an arc-shaped structure, which is convenient for the impact of the contact plates 603 to avoid jamming. As the fixed frame 604 is pressed, the receiving plate 601 will vibrate with the limiting shaft 605 as the fulcrum. The damper 602 can assist the resetting of the receiving plate 601 to prevent the raw material fragments and sand and gravel accumulation on the receiving plate 601 from affecting the rotation of the sieve drum 306. The receiving plate 601 is tilted to facilitate the discharge of raw material powder.

[0023] Specifically, the side wall of the bracket 1 is fixedly connected to a side frame 402, the top of the side frame 402 is fixedly connected to a feed hopper 401, the bottom of the feed hopper 401 is fixedly connected to a lower hopper 403, one end of the lower hopper 403 extends to the inside of the screen drum 306, the inside of the feed hopper 401 is relatively rotatably connected to two rotating shafts 501, and a plurality of stirring rods 503 are fixedly fixed on the two rotating shafts 501 in a spiral shape at equal intervals, and one end of the two rotating shafts 501 is respectively fixedly connected to a first gear 504 and a second gear 506, the first gear 504 and the second gear 506 are meshed, and the feed hopper 40 1 is provided with a second motor 502, and the output end of the second motor 502 is fixedly connected to one of the rotating shafts 501; the dispersing mechanism 5 also includes two slide grooves 508, and two slide grooves 508 are relatively vertically provided on both sides of the feed hopper 401, and the insides of the two slide grooves 508 are slidably connected with a slider 505 with an inverted L-shaped structure on the side, and an intermediate rod 509 located at the center of the feed hopper 401 is fixedly connected between the two sliders 505, and a discharge plate 510 is fixedly connected to the intermediate rod 509, and a connecting rod 507 is rotatably connected between the second gear 506 and one of the sliders 505; The raw materials of biomass fuel are sent to the inside of the feed hopper 401 through the feeding equipment. After the raw materials are added to the inside of the feed hopper 401, the second motor 502 is started to realize that the second motor 502 drives one of the rotating shafts 501 to rotate. Since the first gear 504 and the second gear 506 on the two rotating shafts 501 are meshed, the two rotating shafts 501 rotate relative to each other when the second motor 502 rotates. The stirring rods 503 on the two rotating shafts 501 can break up the fuel raw materials in the feed hopper 401 to prevent the raw materials agglomerated due to high humidity from directly entering the inside of the screen drum 306 and extending During the long drying time, the scattered raw materials flow from the bottom of the feed hopper 401 to the lower hopper 403, and finally fall into the inside of the screen drum 306. When the second gear 506 rotates, it drives the connecting rod 507 to rotate. Since the slider 505 rotatably connected to the connecting rod 507 is slidably connected to the slide groove 508, that is, the slider 505 is limited, when the connecting rod 507 is driven to rotate by the second gear 506, the two sliders 505 are lifted and lowered. As the slider 505 rises and falls, it drives the unloading plate 510 on the middle rod 509 to press the scattered raw materials in the feed hopper 401, which is beneficial to the unloading of raw materials and avoids blockage.

[0024] Specifically, a blanking plate 701 located at the bottom of the limiting ring 304 is obliquely fixedly connected to the bracket 1, and an electric push rod 702 is installed on the bracket 1. The telescopic end of the electric push rod 702 is fixedly connected to a push plate 704, and a collecting bucket 703 is slidably connected to the outer side of the push plate 704. The collecting bucket 703 is located at the bottom of the blanking plate 701. One side of the collecting bucket 703 is connected to a connecting box 705 opposite to the push plate 704. A guide rail 706 with a groove on the inner wall is fixedly connected to the end edge of the connecting box 705. A sealing plate 707 with an inverted L-shaped cross-section is slidably connected to the inside of the guide rail 706, and the sealing plate 707 is in conflict with the end of the connecting box 705. The screened raw materials fall from the end of the screen drum 306 onto the discharge plate 701, and then fall from the discharge plate 701 into the inside of the collecting bucket 703. The freshly dried raw materials will be relatively fluffy, and will occupy a large area after falling into the collecting bucket 703. At this time, the electric push rod 702 can be started, and the sealing plate 707 can be inserted into the inside of the guide rail 706 to seal the connecting box 705. When the electric push rod 702 is extended and retracted, it pushes the dried raw materials inside the collecting bucket 703 into the inside of the connecting box 705, and the more it is squeezed, the tighter it is. On the one hand, it can reduce the area occupied by the raw materials and avoid clogging of the collecting bucket 703. On the other hand, it can squeeze the raw materials tightly, which is convenient for packaging. When packaging, just pull out the sealing plate 707 on the guide rail 706.

[0025] When the present invention is used, first, the raw materials of biomass fuel are sent to the inside of the feed hopper 401 through the feeding device. After the raw materials are added to the inside of the feed hopper 401, the second motor 502 is started to realize that the second motor 502 drives one of the rotating shafts 501 to rotate. Since the first gear 504 and the second gear 506 on the two rotating shafts 501 are meshed, the two rotating shafts 501 can rotate relative to each other when the second motor 502 rotates. The stirring rods 503 on the two rotating shafts 501 can break up the fuel raw materials in the feed hopper 401 to prevent the raw materials that are agglomerated due to high humidity from directly entering the screen drum 30. 6, the drying time is extended, the scattered raw materials flow from the bottom of the feed hopper 401 to the lower hopper 403, and finally fall into the inside of the screen drum 306, and when the second gear 506 rotates, it drives the connecting rod 507 to rotate. Since the slider 505 rotatably connected to the connecting rod 507 is slidably connected to the slide groove 508, that is, the slider 505 is limited, when the connecting rod 507 is driven to rotate by the second gear 506, the two sliders 505 are lifted and lowered. As the slider 505 is lifted and lowered, the unloading plate 510 on the middle rod 509 is driven to press the scattered raw materials in the feed hopper 401, which is beneficial to the unloading of raw materials and avoids blockage. Then, the scattered raw materials fall from the lower hopper 403 into the interior of the screen drum 306, and the first motor 301 is started to drive the toothed disc 302 to rotate. Due to the meshing between the toothed disc 302 and the gear ring 303, the gear ring 303 drives the screen drum 306 to rotate inside the shell 201, and the limiting ring 304 at the other end of the screen drum 306 is limited by the roller 305 on the bracket 1, ensuring that the screen drum 306 does not move axially, and the roller 305 is rollingly connected with the limiting ring 304, reducing the resistance of the screen drum 306 when it rotates, and with the rotation of the screen drum 306, the spiral blades 307 on its inner wall transport the raw materials to the direction of the lower material plate 701, and the raw materials can be turned over, and the two heating plates 202 can be started to generate heat to dry the raw materials inside the screen drum 306. When the raw materials are dried and transported, The smaller raw material powder and sand and gravel will be sieved by the sieve drum 306 and fall onto the receiving plate 601 from the bottom opening of the shell 201. As the sieve drum 306 drives the limiting ring 304 to rotate, the multiple contact plates 603 on the side wall of the limiting ring 304 will also rotate in a circle, so that the multiple contact plates 603 intermittently knock the fixed frame 604 on the receiving plate 601, and the top of the fixed frame 604 is an arc-shaped structure, which is convenient for the impact of the contact plates 603 to avoid jamming. As the fixed frame 604 is pressed, the receiving plate 601 will vibrate with the limiting shaft 605 as the fulcrum, and the damper 602 can assist the resetting of the receiving plate 601 to prevent the raw material crushed and sand and gravel accumulation on the receiving plate 601 from affecting the rotation of the sieve drum 306, and the receiving plate 601 is inclined, which is conducive to the discharge of raw material powder. Finally, the screened raw materials fall from the end of the screen drum 306 onto the discharge plate 701, and then fall from the discharge plate 701 into the inside of the collecting bucket 703. The freshly dried raw materials will be relatively fluffy, and will occupy a large area after falling into the collecting bucket 703. At this time, the electric push rod 702 can be started, and the sealing plate 707 can be inserted into the inside of the guide rail 706 to seal the connecting box 705. When the electric push rod 702 is extended and retracted, it pushes the dried raw materials inside the collecting bucket 703 into the inside of the connecting box 705, and the more it is squeezed, the tighter it is. On the one hand, it can reduce the area occupied by the raw materials and avoid clogging of the collecting bucket 703. On the other hand, it can squeeze the raw materials tightly, which is conducive to packaging. When packaging, just pull out the sealing plate 707 on the guide rail 706.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A drying device for processing biomass fuel raw materials, characterized in that: The invention comprises a support (1), a drying mechanism (2) mounted on the support (1), and a feeding mechanism (4); a screening mechanism (3) is mounted on the drying mechanism (2); one end of the feeding mechanism (4) extends into the interior of the screening mechanism (3); a scattering mechanism (5) is mounted inside the feeding mechanism (4); a material receiving mechanism (6) located at the bottom of the drying mechanism (2) is mounted on the support (1); and a material pushing mechanism (7) is mounted on the support (1); The drying mechanism (2) comprises a shell (201), the shell (201) having a bottom opening is fixedly connected to the bracket (1), the screening mechanism (3) comprises a screen drum (306), the screen drum (306) is rotatably connected inside the shell (201), one end of the screen drum (306) is fixedly connected to a limiting ring (304), the material receiving mechanism (6) comprises a contact plate (603), the side wall of the limiting ring (304) is fixedly connected to the contact plate (603) with an arc-shaped end portion, the inner side of the bracket (1) is relatively rotatably connected to two limiting shafts (605), a material receiving plate (601) is fixedly connected between the two limiting shafts (605), a fixed frame (604) that contacts the contact plate (603) is fixedly connected to the edge of the surface of the material receiving plate (601), and a damper (602) is rotatably connected between the bottom of the material receiving plate (601) and the bracket (1).

2. A drying device for processing biomass fuel raw materials according to claim 1, characterized in that: The material receiving plate (601) is arranged at an angle, and the cross section of the material receiving plate (601) is an arc-shaped structure, and the length of the material receiving plate (601) is greater than the length of the screen drum (306).

3. The drying device for processing biomass fuel raw materials according to claim 1, characterized in that: The top of the fixing frame (604) is in an arc-shaped structure, and the abutment plates (603) are fixed to the side wall of the limiting ring (304) in an annular array.

4. The drying device for processing biomass fuel raw materials according to claim 1, characterized in that: The drying mechanism (2) further comprises a heating plate (202) and an air outlet (203); two heating plates (202) are relatively mounted on the outer shell (201); and an air outlet (203) is provided at the top of the outer shell (201).

5. The drying device for processing biomass fuel raw materials according to claim 1, characterized in that: The screening mechanism (3) further comprises a first motor (301), the housing (201) being mounted with the first motor (301), the output end of the first motor (301) being connected to a toothed disc (302) via a coupling, the end of the screen cylinder (306) facing away from the limiting ring (304) being fixedly connected to a toothed ring (303), the toothed ring (303) being meshed with the toothed disc (302), two rollers (305) being connected to the bracket (1) for relative rotation, the two rollers (305) being rollingly connected to the limiting ring (304), and a spiral blade (307) being fixedly connected to the inner wall of the screen cylinder (306).

6. The drying device for processing biomass fuel raw materials according to claim 1, characterized in that: The feeding mechanism (4) comprises a side frame (402), the side wall of the support (1) is fixedly connected to the side frame (402), the top of the side frame (402) is fixedly connected to a feeding hopper (401), the bottom of the feeding hopper (401) is fixedly connected to a lower hopper (403), and one end of the lower hopper (403) extends to the interior of the screen drum (306).

7. A drying device for processing biomass fuel raw materials according to claim 6, characterized in that: The dispersing mechanism (5) comprises two rotating shafts (501), the interior of the feed hopper (401) is connected to the two rotating shafts (501) for relative rotation, a plurality of stirring rods (503) are fixed on the two rotating shafts (501) in a spiral shape and at equal intervals, one end of the two rotating shafts (501) is respectively fixedly connected to a first gear (504) and a second gear (506), the first gear (504) and the second gear (506) are meshed, a second motor (502) is installed on the feed hopper (401), and an output end of the second motor (502) is fixedly connected to one of the rotating shafts (501).

8. The drying device for processing biomass fuel raw materials according to claim 7, characterized in that: The dispersing mechanism (5) further comprises two slide grooves (508), two slide grooves (508) are relatively vertically provided on both sides of the feed hopper (401), a slider (505) having an inverted L-shaped side structure is slidably connected inside the two slide grooves (508), an intermediate rod (509) located at the center of the feed hopper (401) is fixedly connected between the two sliders (505), a discharge plate (510) is fixedly connected to the intermediate rod (509), and a connecting rod (507) is rotatably connected between the second gear (506) and one of the sliders (505).

9. A drying device for processing biomass fuel raw materials according to claim 8, characterized in that: The cross-section of the discharge plate (510) is an umbrella-shaped structure, and openings are arranged at equal distances on both sides of the discharge plate (510).

10. The drying device for processing biomass fuel raw materials according to claim 1, characterized in that: The pushing mechanism (7) comprises a feeding plate (701), the feeding plate (701) located at the bottom of the limiting ring (304) is fixedly connected to the bracket (1) in an inclined manner, the bracket (1) is provided with an electric push rod (702), the telescopic end of the electric push rod (702) is fixedly connected to the pushing plate (704), the outer side of the pushing plate (704) is slidably connected to a collecting bucket (703), the collecting bucket (703) is located at the bottom of the feeding plate (701), one side of the collecting bucket (703) is connected to a connecting box (705) opposite to the pushing plate (704), the end edge of the connecting box (705) is fixedly connected to a guide rail (706) with a groove in the inner wall, the guide rail (706) is slidably connected to a sealing plate (707) with an inverted L-shaped cross section, and the sealing plate (707) abuts against the end of the connecting box (705).

Images