CN116510818A - Method and experimental device for efficiently utilizing forest deforestation residues - Google Patents

Abstract

The invention relates to the technical field of recycling devices, and discloses an experiment device for efficiently utilizing forest harvesting residues, which comprises a treatment box, wherein a grinding box is fixedly arranged at the top end of the treatment box, a feeding channel is fixedly arranged inside the top end of the grinding box in a penetrating manner, and a grinding roller is movably arranged inside the grinding box.

Description

A method and experimental device for efficiently utilizing forest harvesting residues

technical field

The invention relates to the technical field of recycling devices, in particular to a method for efficiently utilizing forest felling residues and an experimental device.

Background technique

At present, in the felling and processing of forest trees, it is mainly directly felled by equipment such as electric saws and chain saws. Although it can meet the needs of use to a certain extent, on the one hand, there is a lack of effective control of the direction and posture of the trees in the felling process. Therefore, in the process of tree dumping, it is very easy to cause damage to the surrounding trees, equipment and staff, which seriously affects the safety of the construction; on the other hand, it is often necessary to Cutting the branches and leaves of trees, cutting and trimming the length of trees, etc., resulting in a large amount of debris, branches and leaves and other residues in the harvesting of trees. These residues can be used as feed, wood-based panels, artificial carbon and other industrial production. Therefore, logging residues still have huge economic and social value.

Logging residues will also have a serious impact on the replanting and tending of trees in forest farms, reducing planting efficiency and indigestion of thinned trees, which in turn affects the normal growth of trees, directly affecting the benign production of forest resources and the efforts to transform low-yield forests , In addition, the throwing and burning of processing residues has also caused huge work pressure for environmental protection work and forest fire safety.

Contents of the invention

The object of the present invention is to provide a method and experimental device for efficiently utilizing forest harvesting residues to solve the problems raised in the background technology above.

Technical solutions

The present invention provides the following technical solutions: an experimental device for efficient utilization of forest harvesting residues, including a processing box, a crushing box is fixedly installed on the top of the processing box, and a feeding channel is fixedly installed inside the top of the crushing box , the internal movement of the crushing box is equipped with a crushing roller, and the inner wall of the processing box is fixedly installed with a second mounting plate, a limit block and a connecting rod, and each adjacent side of the connecting rod is fixedly installed with A processing cylinder, a cutter is movably installed inside the processing cylinder, a first sieve plate is movably installed inside the treatment box, the first sieve plate is located below the second mounting plate, the first sieve A processing chamber is provided between the bottom of the screen plate and the bottom inner wall of the processing box, and the front inner wall of the processing box is respectively provided with a first discharge port and a second discharge port.

Preferably, the back side outer wall of the crushing box is fixedly installed with a second motor, the inside of the crushing box is respectively fixedly installed with a material distribution plate and a collecting plate, and the inside of the crushing box is movably installed with a first motor. Rotating columns, the outer sides of the two first rotating columns are fixedly connected to the crushing rollers, and the rotation directions of the two crushing rollers are opposite, and the output shaft end of the second motor is fixedly connected to the first rotating columns .

Preferably, the two crushing rollers are located between two adjacent collecting plates, and the edges of the crushing rollers are slidingly connected to the inner side of the collecting plates, and the collecting plates are located above the separating plate , and the distribution plate is located directly below the middle line between two adjacent crushing rollers.

Preferably, the inner wall of the bottom end of the crushing box is penetrated with a first discharge channel, and the first discharge channel extends downwards and passes through the inner wall of the top end of the treatment box, and communicates with the treatment cylinder.

Preferably, the processing cylinder is located on the top of the second mounting plate, and the inner wall of the second mounting plate is fixedly installed with a second screen plate, the second screen plate is located below the processing cylinder, and is connected with the processing cylinder interconnected.

Preferably, a first threaded column is movably installed inside the processing cylinder, a first connecting column is fixedly installed at the top and bottom of the first threaded column, and the other end of the first connecting column is fixedly installed There is a scraper, and the edge of the scraper is slidably connected with the inner wall of the processing cylinder.

Preferably, the outer side of the first threaded column is threaded with a connecting block, the outer side of the connecting block is fixedly connected with the cutter, and the cutters are equidistant and equiangularly distributed on the outer side of the connecting block, and two adjacent connecting blocks A second connecting column is fixedly installed between the blocks, a third motor is fixedly installed at the bottom end of the second mounting plate, and an output shaft end of the third motor is fixedly connected with the first threaded column.

Preferably, a first mounting plate is fixedly mounted on the outer side wall of the processing box, a first motor is fixedly mounted on the top end of the first mounting plate, and a second rotating column is fixedly mounted on the output shaft end of the first motor, One end of the second rotating column is movably connected with a third connecting column, and the third connecting column moves in a circle through the second rotating column.

Preferably, the inner walls of both sides of the processing box are fixedly installed with installation frames, the inside of the installation frame is fixed with a sliding column, and the outer side of the sliding column is movably installed with a sliding block, and the sliding block is close to the processing One side of the inside of the box is fixedly installed with a first connecting shaft seat, which is movably connected with the first screen plate, and the other end of the sliding block is fixedly installed with a first connecting plate, and the first connecting plate The bottom end is fixedly equipped with a second connecting shaft seat, and the second connecting shaft seat is movably connected with the top end of the third connecting column;

The upper and lower ends of the sliding block are fixedly equipped with protective plates, and the protective plates are slidably connected to the two ends of the first screen plate.

A method for using an experimental device for efficiently utilizing forest harvesting residues has the following steps,

S1: Pour all the harvesting residues into the crushing box through the feeding channel;

S2: The harvesting residue is crushed by the crushing roller in the crushing box, and enters the processing cylinder in the processing box through the first feeding channel;

S3: further cut the felling residue crushed by the crushing roller in step S by processing the work of the cutter in the cylinder, and further reduce the volume of the felling residue through the action of the cutter;

S4: Falling the harvested residues in step S onto the first screen plate through the second screen plate, and through the up and down reciprocating vibration movement of the first screen plate.

S5: The upper felling residue that cannot pass through the first screen plate is taken out through the first outlet, and the felling residue that enters the treatment chamber and passes through the first screen plate is taken out through the second outlet.

Beneficial effect

Compared with the prior art, the present invention provides a method and experimental device for efficiently utilizing forest felling residues, which have the following beneficial effects:

1. The method and experimental device for efficient utilization of forest harvesting residues enter the crushing box through the feeding channel, and drive the first rotating column to rotate through the work of the second motor. When the first rotating column rotates, it will Drive the crushing rollers to rotate, and the rotation direction of the two crushing rollers is opposite, so that the harvesting residues located between the two crushing rollers will be crushed by the two crushing rollers and enter through the first discharge channel Disposal bins to prevent waste of deforestation residues.

2. In the method and experimental device for efficient utilization of forest harvesting residues, the harvesting residues after the crushing box enter the processing cylinder, and the rotation of the third motor drives the first threaded column to rotate. When the first threaded column rotates, it will drive The first connecting column moves circularly around the threaded column, so that when the first connecting column rotates, it will drive the scraper to scrape off the debris on the inner wall of the processing cylinder, preventing logging residues from staying on the inner wall of the processing cylinder and preventing forest felling Waste of leftovers.

3. In the method and experimental device for efficient utilization of forest harvesting residues, when the first threaded column rotates, it will drive the connecting block to rotate, and the upper and lower adjacent connecting blocks are fixedly connected, so that the upper and lower are connected by the second connecting column. The two connecting blocks will move and drive the cutter to further cut the logging residues in the processing cylinder, further crush the logging residues in the processing cylinder, and prevent the waste of forest logging residues.

4. In the method and experimental device for efficient utilization of forest harvesting residues, the movement of the first motor drives the second rotating column to move, and the second rotating column drives the third connecting column to move together, and the top of the third connecting column passes through the first The second connecting shaft seat is movably connected with the first connecting plate, the first connecting plate is movably installed on the sliding column through the sliding block, and the third connecting column will drive the first connecting plate to reciprocate up and down through the second rotating column and the second connecting shaft seat , and drive the first screen plate to move up and down through the first connecting shaft seat, so that the harvesting residues on the first screen plate are separated again, and the sorting process is carried out through the first discharge port and the second discharge port, increasing Separate utilization treatment options for forest harvesting residues.

5. In the method and experimental device for efficient utilization of forest harvesting residues, when the protective plate reciprocates up and down on the first screen plate, it prevents the harvesting residues in the treatment box from leaking out, and prevents the waste of forest harvesting residues.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

Fig. 1 is the appearance diagram of overall structure of the present invention;

Fig. 2 is the front view of the crushing box of the present invention;

Fig. 3 is a schematic diagram of the first feeding channel and the second motor of the present invention;

Fig. 4 is the front view of the processing box of the present invention;

Fig. 5 is a bottom view of the second mounting plate of the present invention;

Fig. 6 is a sectional view of the processing cylinder of the present invention;

Fig. 7 is a partial schematic diagram of the interior of the processing box of the present invention;

Fig. 8 is a movement diagram of the protective plate of the present invention;

Fig. 9 is an internal view of the installation frame of the present invention;

Fig. 10 is a connection diagram of the first connecting shaft seat and the first screen plate of the present invention.

In the figure: 1. Processing box; 2. Crushing box; 3. The first discharge port; 4. The second discharge port; 5. The first mounting plate; 6. The first motor; 7. The first connecting plate; 8. Installation frame; 9. Feed channel; 10. Distributing plate; 11. Collecting plate; 12. First rotating column; 13. Crushing roller; 14. First feeding channel; 15. Second motor; 16. The second mounting plate; 17. The limit block; 18. The connecting rod; 19. The processing cylinder; 20. The first threaded column; 21. The collection chamber; 22. The first screen plate; 23. The protective plate; 24. The third motor; 25, the second screen plate; 26, the first connecting column; 27, the connecting block; 28, the scraper; 29, the second connecting column; 30, the cutter; 31, the third connecting column; 32, The second rotating column; 33, the first connecting shaft seat; 34, the second connecting shaft seat; 35, the sliding column; 36, the sliding block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one:

Please refer to Fig. 1-Fig. 4, the present invention provides a kind of technical scheme: a kind of high-efficiency utilization of forest felling residue experimental device, comprises processing box 1, and the top of processing box 1 is fixedly equipped with crushing box 2, and the top of crushing box 2 A feeding channel 9 is fixedly installed inside the top end, and a crushing roller 13 is installed movable inside the crushing box 2, and a second mounting plate 16, a limit block 17 and a connecting rod 18 are fixedly installed on the inner wall of the processing box 1, respectively. The adjacent side of two connecting rods 18 is fixedly equipped with processing cylinder 19, and the inside of processing cylinder 19 is equipped with cutter 30, and the inside of processing case 1 is equipped with first screen plate 22, and first screen plate 22 is positioned at the first screen plate 22. Below the second mounting plate 16, a processing cavity 21 is provided between the bottom of the first screen plate 22 and the bottom inner wall of the processing box 1, and the front inner wall of the processing box 1 is respectively provided with a first discharge port 3 and a second discharge port. Material port 4.

In this embodiment, a second motor 15 is fixedly installed on the back side outer wall of the crushing box 2, a distribution plate 10 and a collection plate 11 are respectively fixedly installed inside the crushing box 2, and a The first rotating column 12, the outer sides of the two first rotating columns 12 are all fixedly connected with the crushing roller 13, and the rotation direction of the two crushing rollers 13 is opposite, the output shaft end of the second motor 15 is connected to the first rotating column 12 Fixed connection.

In the present embodiment, two crushing rollers 13 are located between two adjacent collecting plates 11, and the edges of the crushing rollers 13 are slidingly connected to the inside of the collecting plates 11, and the collecting plates 11 are positioned at the distribution plate 10. above, and the distribution plate 10 is located directly below the middle line between two adjacent crushing rollers 13 .

In this embodiment, the bottom inner wall of the crushing box 2 is penetrated with a first discharge channel 14 , and the first discharge channel 14 extends downward and passes through the top inner wall of the processing box 1 , and communicates with the processing cylinder 19 .

In this embodiment, the processing cylinder 19 is located at the top of the second mounting plate 16, and the inner wall of the second mounting plate 16 is fixedly installed with a second screen plate 25, and the second screen plate 25 is located below the processing cylinder 19, and is connected with The treatment cartridges 19 communicate with each other.

The working principle of this embodiment: when in use, the harvesting residue is put into the crushing box 2 through the feed channel 9, and the first rotating column 12 is driven to rotate by the work of the second motor 15, and when the first rotating column 12 rotates, it will drive The crushing roller 13 rotates, and the rotation direction of the two crushing rollers 13 is opposite, so that the logging residue positioned between the two crushing rollers 13 will be crushed by the two crushing rollers 13, and pass through the first The feed channel 14 enters the processing box 1.

Embodiment two:

Please refer to Fig. 4-Fig. 10, the present invention provides a kind of technical scheme: a kind of high-efficiency utilization of forest felling residue experimental device, comprises processing box 1, and the top of processing box 1 is fixedly equipped with crushing box 2, and the top of crushing box 2 A feeding channel 9 is fixedly installed inside the top end, and a crushing roller 13 is installed movable inside the crushing box 2, and a second mounting plate 16, a limit block 17 and a connecting rod 18 are fixedly installed on the inner wall of the processing box 1, respectively. The adjacent side of two connecting rods 18 is fixedly equipped with processing cylinder 19, and the inside of processing cylinder 19 is equipped with cutter 30, and the inside of processing case 1 is equipped with first screen plate 22, and first screen plate 22 is positioned at the first screen plate 22. Below the second mounting plate 16, a processing cavity 21 is provided between the bottom of the first screen plate 22 and the bottom inner wall of the processing box 1, and the front inner wall of the processing box 1 is respectively provided with a first discharge port 3 and a second discharge port. Material port 4.

In this embodiment, a first threaded column 20 is installed movably inside the processing cylinder 19, a first connecting column 26 is fixedly installed at the top and bottom of the first threaded column 20, and the other end of the first connecting column 26 is fixed A scraper 28 is installed, and the edge of the scraper 28 is slidably connected with the inner wall of the processing cylinder 19 .

In this embodiment, the outer side of the first threaded column 20 is threadedly connected with a connecting block 27, and the outer side of the connecting block 27 is fixedly connected with the cutter 30, and the cutters 30 are equidistant and equiangularly distributed on the outer side of the connecting block 27, two adjacent A second connecting column 29 is fixedly installed between the two connecting blocks 27 , a third motor 24 is fixedly installed on the bottom end of the second mounting plate 16 , and the output shaft end of the third motor 24 is fixedly connected with the first threaded column 20 .

In this embodiment, a first mounting plate 5 is fixedly mounted on the outer wall of the processing box 1, a first motor 6 is fixedly mounted on the top of the first mounting plate 5, and a second rotating column is fixedly mounted on the output shaft end of the first motor 6. 32 , one end of the second rotating column 32 is movably connected with a third connecting column 31 , and the third connecting column 31 makes a circular motion through the second rotating column 32 .

In this embodiment, the inner walls on both sides of the processing box 1 are fixedly installed with installation frames 8 through. The interior of the installation frame 8 is fixedly installed with sliding columns 35. The outer sides of the sliding columns 35 are movably installed with sliding blocks 36. The sliding blocks 36 are close to each other. One side inside the processing box 1 is fixedly equipped with a first connecting shaft seat 33, which is movably connected with the first screen plate 22, and the other end of the sliding block 36 is fixedly equipped with a first connecting plate 7, and the first connecting shaft seat 33 is movably connected with the first screen plate 22. The bottom end of the plate 7 is fixedly installed with a second connecting shaft seat 34, and the second connecting shaft seat 34 is movably connected with the top of the third connecting column 31;

Both upper and lower ends of the sliding block 36 are fixedly equipped with protective plates 23 , and the protective plates 23 are slidably connected to both ends of the first screen plate 22 .

The third motor 24 adopts a reversing motor, and adopts a reversing motor of existing mature technology.

A part of the protective plate 23 is always located at the limit block 17 to prevent the fine logging residues on the first screen plate 22 from flowing out of the treatment box 1 through the protective plate 23 .

The working principle of this embodiment: the harvesting residue after the crushing box 2 enters the processing cylinder 19, and the rotation of the third motor 24 drives the first threaded column 20 to rotate. When the first threaded column 20 rotates, it will drive the first The connecting column 26 moves circularly around the threaded column 20, so that the first connecting column 26 will drive the scraper 28 to scrape off the debris on the inner wall of the processing cylinder 19 when the first connecting column 26 rotates to prevent logging residues from staying on the inner wall of the processing cylinder 19 .

When the first threaded column 20 rotates, it will drive the connecting block 27 to rotate, and the upper and lower adjacent two connecting blocks 27 are fixedly connected, so that the multiple connecting blocks 27 connected by the second connecting column 29 up and down will pass through the movement, and The cutting knife 30 is driven to further cut the felling residues located in the processing cylinder 19, and further crush the felling residues in the processing cylinder 19.

During work, the movement of the first motor 6 drives the second rotating column 32 to move, and the second rotating column 32 will drive the third connecting column 31 to move together, and the top of the third connecting column 31 is connected to the second connecting shaft seat 34. The first connecting plate 7 is movably connected, the first connecting plate 7 is movably installed on the sliding column 35 through the sliding block 36, and the third connecting column 31 will drive the first connecting plate 7 through the second rotating column 32 and the second connecting shaft seat 34 Reciprocate up and down, and drive the first screen plate 22 to move up and down through the first connecting shaft seat 33, so that the harvesting residue on the first screen plate 22 is separated again, and the first discharge port 3 and the second discharge port 4 for sorting.

When the first screen plate 22 reciprocates up and down, the protective plate 23 prevents the harvesting residue in the treatment box 1 from leaking out.

Embodiment three:

Please refer to Fig. 1-Fig. 10, the present invention provides a kind of technical scheme: a kind of high-efficiency utilization of forest felling residue experimental device, comprises processing box 1, and the top of processing box 1 is fixedly equipped with crushing box 2, and the top of crushing box 2 A feeding channel 9 is fixedly installed inside the top end, and a crushing roller 13 is installed movable inside the crushing box 2, and a second mounting plate 16, a limit block 17 and a connecting rod 18 are fixedly installed on the inner wall of the processing box 1, respectively. The adjacent side of two connecting rods 18 is fixedly equipped with processing cylinder 19, and the inside of processing cylinder 19 is equipped with cutter 30, and the inside of processing case 1 is equipped with first screen plate 22, and first screen plate 22 is positioned at the first screen plate 22. Below the second mounting plate 16, a processing cavity 21 is provided between the bottom of the first screen plate 22 and the bottom inner wall of the processing box 1, and the front inner wall of the processing box 1 is respectively provided with a first discharge port 3 and a second discharge port. Material port 4.

A method for using an experimental device for efficiently utilizing forest harvesting residues has the following steps,

S1: Pour all the logging residues into the crushing box 2 through the feed channel 9;

S2: crush the harvesting residues through the crushing roller 13 in the crushing box 2, and enter the processing cylinder 19 in the processing box 1 through the first feeding channel 14;

S3: further cut the felling residue crushed by the crushing roller 13 in step S2 through the work of the cutter 30 in the processing cylinder 19, and further reduce the volume of the felling residue by the action of the cutter 30;

S4: The felling residues in step S3 are dropped onto the first screen plate 22 through the second screen plate 25, and the first screen plate 22 reciprocates and vibrates up and down.

S5: Take out the upper felling residue that cannot pass through the first screen plate 22 in the first discharge port 3, and the felling residue that enters the treatment chamber 21 passes through the first screen plate 22 and passes through the second discharge Port 4 is taken out.

Claims (10)

1. The utility model provides a high-efficient utilization forest harvesting remainder experimental apparatus, includes processing case (1), its characterized in that: the top end of the treatment box (1) is fixedly provided with a grinding box (2), the inside of the top end of the grinding box (2) is fixedly provided with a feeding channel (9) in a penetrating manner, the inside of the grinding box (2) is movably provided with a grinding roller (13), the inner wall of the treatment box (1) is respectively and fixedly provided with a second mounting plate (16), a limiting block (17) and a connecting rod (18), the adjacent side of each connecting rod (18) is fixedly provided with a treatment cylinder (19), the inside movable mounting of handling section of thick bamboo (19) has cutter (30), the inside movable mounting of handling case (1) has first screen plate (22), first screen plate (22) are located the below of second mounting panel (16), be provided with between the bottom inner wall of the below of first screen plate (22) and handling case (1) and handle chamber (21), first discharge gate (3) and second discharge gate (4) have been seted up respectively to the front inner wall of handling case (1).

2. An experimental facility for efficient utilization of forest harvesting residues according to claim 1, wherein: the utility model discloses a grinding box, including grinding case (2), grinding roller (13), first rotation post (12), second motor (15) are installed to the dorsal external wall fixed mounting of grinding case (2), the inside of grinding case (2) is fixed mounting respectively has branch flitch (10) and collecting plate (11), the inside movable mounting of grinding case (2) has first rotation post (12), two the outside of first rotation post (12) all with grinding roller (13) fixed connection, and two the rotation direction of grinding roller (13) is opposite, the output axle head and the first rotation post (12) fixed connection of second motor (15).

3. An experimental facility for efficient utilization of forest harvesting residues according to claim 2, wherein: two grinding rolls (13) are located between two adjacent collecting plates (11), the edges of the grinding rolls (13) are in sliding connection with the inner sides of the collecting plates (11), the collecting plates (11) are located above the distributing plates (10), and the distributing plates (10) are located under the middle connecting lines of the two adjacent grinding rolls (13).

4. An experimental facility for efficient use of forest harvesting residues according to claim 3, wherein: the bottom end inner wall of the grinding box (2) is penetrated and provided with a first blanking channel (14), and the first blanking channel (14) extends downwards and penetrates through the top end inner wall of the treatment box (1) and is communicated with the treatment cylinder (19).

5. An experimental facility for efficient utilization of forest harvesting residues according to claim 1, wherein: the treatment cylinder (19) is located at the top end of the second mounting plate (16), a second screen plate (25) is fixedly installed on the inner wall of the second mounting plate (16) in a penetrating mode, and the second screen plate (25) is located below the treatment cylinder (19) and is communicated with the treatment cylinder (19).

6. An efficient use forest harvesting residue experiment device as defined in claim 5, wherein: the inside movable mounting of handling section of thick bamboo (19) has first screw thread post (20), the top department of first screw thread post (20) is all fixed mounting in bottom department has first spliced pole (26), the other end fixed mounting of first spliced pole (26) has scraper blade (28), the edge of scraper blade (28) is with the inner wall sliding connection of handling section of thick bamboo (19).

7. An efficient use forest harvesting residue experiment device as defined in claim 6, wherein: the utility model discloses a screw thread post, including first screw thread post (20), connecting block (27) are connected with to outside screw thread of first screw thread post (20), the outside of connecting block (27) and cutter (30) fixed connection, and cutter (30) equidistance equiangular distribution are in the outside of connecting block (27), and adjacent two fixed mounting has second spliced pole (29) between connecting block (27), the bottom fixed mounting of second mounting panel (16) has third motor (24), the output axle head and the first screw thread post (20) fixed connection of third motor (24).

8. An experimental facility for efficient utilization of forest harvesting residues according to claim 1, wherein: the outer side wall fixed mounting of processing case (1) has first mounting panel (5), the top fixed mounting of first mounting panel (5) has first motor (6), the output shaft end fixed mounting of first motor (6) has second rotation post (32), the one end swing joint of second rotation post (32) has third spliced pole (31), circular motion is done through second rotation post (32) to third spliced pole (31).

9. An efficient use forest harvesting residue experiment device as defined in claim 8, wherein: the inner walls of two sides of the treatment box (1) are fixedly provided with a mounting frame (8) in a penetrating manner, the inside of the mounting frame (8) is fixedly provided with a sliding column (35), the outside of the sliding column (35) is movably provided with a sliding block (36), one side, close to the inside of the treatment box (1), of the sliding block (36) is fixedly provided with a first connecting shaft seat (33), the first connecting shaft seat (33) is movably connected with a first screen plate (22), the other end of the sliding block (36) is fixedly provided with a first connecting plate (7), the bottom end of the first connecting plate (7) is fixedly provided with a second connecting shaft seat (34), and the second connecting shaft seat (34) is movably connected with the top end of a third connecting column (31);

the upper end and the lower end of the sliding block (36) are fixedly provided with protection plates (23), and the protection plates (23) are in sliding connection with the two ends of the first screen plate (22).

10. The method for using the experimental device for efficiently utilizing forest cutting residues according to the claims 1-9, wherein the method comprises the following steps,

s1: pouring all the harvesting residues into a grinding box (2) through a feed channel (9);

s2: grinding the felling residues by a grinding roller (13) in the grinding box (2) and entering a treatment cylinder (19) in the treatment box (1) through a first blanking channel (14);

s3: the cutting remainder crushed by the crushing roller (13) in the step S2 is further cut by the operation of the cutter (30) in the treatment cylinder (19), and the cutting remainder is further reduced in volume by the action of the cutter (30);

s4: the felling residues in the step S3 fall onto the first screen plate (22) through the second screen plate (25), and are subjected to up-and-down reciprocating vibration movement through the first screen plate (22).

S5: the upper cutting residues which cannot pass through the first screen plate (22) in the first discharge hole (3) are taken out, and the cutting residues which enter the processing cavity (21) are taken out through the second discharge hole (4) by the cutting residues of the first screen plate (22).