Particle production screening device

Abstract

The utility model belongs to the technical field of biomass particles, and particularly relates to a particle production screening device which comprises an inclined supporting plate. A box body is fixedly connected to the inclined supporting plate, a screening roller is arranged in the box body, the two ends of the top side of the inclined supporting plate are each fixedly connected with two fixing bases, an auxiliary supporting wheel is rotationally installed in each fixing base, and the multiple auxiliary supporting wheels are rotationally provided with the screening roller in a matched mode; a plurality of annular grooves are formed in the outer circumferential surface of the screening roller; when the biomass particle screening device is used for screening biomass particles, the biomass particles are impacted, so that the loose particles can be crushed, the particles finally passing through the screening roller are uniform, the stability and the consistency of the biomass particles during combustion can be kept, the product quality can be improved, the filter holes can be prevented from being blocked, and the quality of the biomass particles can be improved. The subsequent screening effect is guaranteed, the filter holes do not need to be cleaned repeatedly after shutdown, and the maintenance cost of the screening equipment is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass particles, in particular to a particle production and screening device. Background Technique

[0002] Biomass particles are a kind of solid fuel made from raw materials such as agricultural waste and forestry waste through processing. After being extruded by a biomass granulator, they will be cut by a cutter in the machine to ensure the uniform size of the particles. During the cutting process, debris and residues are easily generated, and these debris and residues will be discharged together with the finished products, thus affecting the quality of the finished products. Therefore, a screening device is needed to screen and remove the debris and residues mixed in the finished products.

[0003] A Chinese patent with the publication number CN220946187U discloses a biomass fuel particle production and screening device, which includes a housing. A processing chamber and a blanking chamber are arranged in the housing. The processing chamber and the blanking chamber are vertically separated by a filter screen. An inlet is opened at the top of the housing, and the inlet is communicated with the processing chamber. An outlet is opened on one side of the processing chamber, and the outlet is covered with a cover plate. A knocking component is arranged below the filter screen. When the device is in use, biomass particles enter the processing chamber through the inlet and fall onto the filter screen. The knocking component knocks the bottom of the filter screen to vibrate the filter screen. The filter screen drives the biomass particles to vibrate, and the debris and residues can fall into the blanking chamber through the filter screen. In this way, the biomass particles and the debris and residues can be separated, and further, the debris and residues in the biomass particles can be reduced to improve the quality of the finished biomass fuel particles.

[0004] In the existing biomass particle production and screening device, before screening the biomass particles, the loose particles in the biomass particles cannot be broken. Since the loose particles cannot be fully broken, they cannot pass through the sieve holes smoothly, resulting in a reduction in screening efficiency. Moreover, the finished biomass particles are mixed with loose particles, so the quality and uniformity of the biomass particles cannot be ensured, greatly reducing the product quality. And during screening, the sieve mesh is easy to be blocked and needs to be cleaned frequently, resulting in a high maintenance cost for screening. Therefore, a particle production and screening device is proposed for the above problems. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the above background technique, the utility model proposes a particle production and screening device.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A particle production and screening device of the present utility model includes an inclined support plate; a box body is fixedly connected to the inclined support plate, a screening drum is arranged inside the box body, two fixing seats are fixedly connected to both ends of the top side of the inclined support plate, an auxiliary support wheel is rotatably installed in each fixing seat, and a plurality of auxiliary support wheels are cooperatively rotatably installed with the screening drum. A plurality of annular grooves are formed on the outer circumferential surface of the screening drum, and a plurality of filter holes are formed in each annular groove. A driven gear ring is sleeved on the outer surface of the screening drum. A rectangular through groove is formed on the top side of the box body, a first motor is installed on the top side of the box body, a driving gear is installed at the output end of the first motor, and the driving gear meshes with the driven gear ring. The driving gear is arranged in the rectangular through groove. A hollow pipe is welded to the side wall of the box body, a plurality of spray pipes are assembled on the hollow pipe, and the spray pipes penetrate through the box body and the spray ports of the spray pipes are located in the annular grooves. An air pump is installed on the top side of the box body, an air outlet hole of the air pump is connected to an air conveying pipeline, and the other pipe of the air conveying pipeline is connected to the hollow pipe. During screening, after the crushed loose biomass particles and the compact finished biomass particles enter the screening drum together, start the first motor to make the driving gear rotate, and then make the driven gear ring drive the screening drum to rotate. Through the high-speed rotation of the screening drum, the debris mixed in the biomass particles falls into the debris collection groove through the filter holes. The finished biomass particles will slide downward along the screening drum and pass through the finished product guide groove, so that the biomass particles can be effectively screened, and the debris mixed in the finished product can be removed, ensuring the quality of the finished product. And during the screening process, start the air pump to make the gas flow into the hollow through the air conveying pipeline and finally spray out through the spray pipes, so that the debris blocked in the filter holes can be pushed out of the filter holes under the action of high-pressure gas, thus avoiding the occurrence of filter hole blockage phenomenon, ensuring the subsequent screening effect, and there is no need to stop the machine to repeatedly clean the filter holes, greatly reducing the high maintenance cost of the screening equipment.

[0007] Preferably, a fixing frame is fixedly connected to the side wall of the inclined support plate. A cylinder is fixedly connected to the fixing frame. A second motor is installed on one side wall of the cylinder. The output end of the second motor is connected to a rotating shaft, and the other end of the rotating shaft is rotatably installed on the other side wall of the cylinder. A rotating roller is sleeved on the rotating shaft. A plurality of partition turning and throwing plates are fixed on the outer surface of the rotating roller. A protective cover is connected between the box body and the cylinder. An impact plate is installed on the top inner wall of the protective cover. When screening, start the second motor to make the rotating roller drive the partition turning and throwing plates to rotate. Through the rotation of the partition turning and throwing plates, the biomass particles can be turned and thrown onto the impact plate on the top inner wall of the protective cover. Through the impact of the impact plate, the loose biomass particles can be broken, and together with the qualified and compact biomass particles, they can flow into the screening drum through the material guiding hopper. Before screening, through the impact on the biomass particles, the loose biomass particles can be impacted into fragments, which is convenient for the subsequent smooth discharge of the broken debris through the filter holes, thus significantly improving the screening efficiency. And through the impact on the biomass particles, it not only helps to break the loose particles, but also ensures that the particles finally passing through the screening drum are relatively uniform, which is beneficial to maintaining the stability and consistency during the combustion of biomass particles and improving the product quality.

[0008] Preferably, a feed inlet is provided at the upper end of the circumferential surface of the cylinder, and a feed hopper is fixedly connected to the port of the feed inlet. The bottom side of the circumferential surface of the cylinder is fixedly connected to a material guiding hopper, and the bottom port of the material guiding hopper is arranged inside the lower box body. When using this device, by providing the feed inlet, it is convenient to put the biomass particles to be screened into the screening device for screening.

[0009] Preferably, a debris collection groove is provided on the inclined support plate, and the debris collection groove is arranged below the screening drum. A finished product material guiding groove is fixedly connected to the bottom port of the box body. When using this device, by providing the debris collection groove, the screened debris can be collected. By providing the finished product material guiding groove, it is convenient to discharge the screened finished biomass through the finished product material guiding groove.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. When the utility model performs screening, start the second motor to drive the rotary roller to drive the partition turning and throwing plate to rotate. Through the rotation of the partition turning and throwing plate, the biomass particles can be turned and thrown onto the impact plate on the inner wall of the top side of the protective cover. Through the impact of the impact plate, the loose biomass particles can be broken, and together with the qualified and compact biomass particles, they flow into the screening drum through the material guiding hopper. Before screening, through the impact on the biomass particles, the loose biomass particles can be impacted into fragments, which is convenient for the subsequent smooth discharge of the broken debris through the filter holes, thus significantly improving the screening efficiency. And through the impact on the biomass particles, it not only helps to break the loose particles, but also ensures that the particles finally passing through the screening drum are relatively uniform, which is beneficial to maintaining the stability and consistency during the combustion of biomass particles and improving the product quality;

[0012] 2. When the utility model performs screening, after the broken loose biomass particles and the compact finished biomass particles enter the screening drum together, start the first motor to drive the driving gear to rotate, and then drive the driven gear ring to drive the screening drum to rotate. Through the high-speed rotation of the screening drum, the debris mixed in the biomass particles falls into the debris collection tank through the filter holes. The finished biomass particles will slide downward along the screening drum and pass through the finished product material guiding groove, so as to effectively screen the biomass particles, and then remove the debris mixed in the finished product, ensuring the quality of the finished product. And during the screening process, start the air pump to make the gas flow into the hollow through the air delivery pipeline and finally spray out through the spray pipe, so that the debris blocked in the filter holes can be pushed out of the filter holes under the action of high-pressure gas, thus avoiding the occurrence of filter hole blockage phenomenon, ensuring the subsequent screening effect, and not requiring repeated cleaning of the filter holes during shutdown, greatly reducing the high maintenance cost of the screening equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a schematic three-dimensional structure diagram of the whole device;

[0015] Figure 2 It is a schematic three-dimensional sectional structure diagram of the whole device;

[0016] Figure 3 It is a schematic three-dimensional sectional structure diagram of the box body;

[0017] Figure 4It is a schematic perspective sectional view of a box body and a screening drum.

[0018] In the figure: 1. Inclined support plate; 2. Box body; 3. Screening drum; 4. Fixed seat; 5. Auxiliary support wheel; 6. Driven gear ring; 7. First motor; 8. Driving gear; 9. Rectangular through groove; 10. Annular groove; 11. Filter hole; 12. Air pump; 13. Air conveying pipeline; 14. Hollow pipe; 15. Nozzle; 16. Fixed frame; 17. Cylinder body; 18. Feed hopper; 19. Second motor; 20. Rotating roller; 21. Partition turning and throwing plate; 22. Material guiding hopper; 23. Protective cover; 24. Debris collection tank; 25. Finished product material guiding groove. Specific implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4As shown in the figure, a particle production and screening device includes an inclined support plate 1; a box body 2 is fixedly connected to the inclined support plate 1, a screening drum 3 is arranged inside the box body 2, two fixing seats 4 are fixedly connected to both ends of the top side of the inclined support plate 1, an auxiliary support wheel 5 is rotatably installed in each fixing seat 4, and the screening drum 3 is rotatably installed by the cooperation of multiple auxiliary support wheels 5. A plurality of annular grooves 10 are formed on the outer circumferential surface of the screening drum 3, and a plurality of filter holes 11 are formed in each annular groove 10. A driven gear ring 6 is sleeved on the outer surface of the screening drum 3. A rectangular through groove 9 is formed on the top side of the box body 2, a first motor 7 is installed on the top side of the box body 2, a driving gear 8 is installed at the output end of the first motor 7, and the driving gear 8 meshes with the driven gear ring 6. The driving gear 8 is arranged in the rectangular through groove 9. A hollow pipe 14 is welded to the side wall of the box body 2, a plurality of spray pipes 15 are assembled on the hollow pipe 14, and the spray pipes 15 penetrate through the box body 2, and the spray ports of the spray pipes 15 are located in the annular grooves 10. An air pump 12 is installed on the top side of the box body 2, an air outlet hole of the air pump 12 is connected to an air delivery pipeline 13, and the other pipe of the air delivery pipeline 13 is connected to the hollow pipe 14; during screening, after the crushed loose biomass particles and the compact finished biomass particles enter the screening drum 3 together, start the first motor 7 to make the driving gear 8 rotate, and then make the driven gear ring 6 drive the screening drum 3 to rotate. Through the high-speed rotation of the screening drum 3, the debris mixed in the biomass particles falls into the debris collection groove 24 through the filter holes 11, and the finished biomass particles will slide downward along the screening drum 3 and pass through the finished product guide groove 25, so that the biomass particles can be effectively screened, and then the debris mixed in the finished product can be removed, ensuring the quality of the finished product. And during the screening process, start the air pump 12 to make the gas flow into the hollow pipe 14 through the air delivery pipeline 13 and finally spray out through the spray pipes 15, so that the debris blocked in the filter holes 11 can be pushed out of the filter holes 11 under the action of high-pressure gas, thus avoiding the occurrence of the blockage phenomenon of the filter holes 11, ensuring the subsequent screening effect, and not requiring repeated cleaning of the filter holes 11 during shutdown, greatly reducing the high maintenance cost of the screening equipment.

[0021] Please refer to Figure 1As shown, a fixing frame 16 is fixedly connected to the side wall of the inclined support plate 1. A cylinder 17 is fixedly connected to the fixing frame 16. A second motor 19 is installed on one side wall of the cylinder 17. The output end of the second motor 19 is connected to a rotating shaft, and the other end of the rotating shaft is rotatably installed on the other side wall of the cylinder 17. A rotating roller 20 is sleeved on the rotating shaft. A plurality of partition turning and throwing plates 21 are fixed on the outer surface of the rotating roller 20. A feed inlet is formed at the upper end of the circumferential surface of the cylinder 17. A feed hopper 18 is fixedly connected to the port of the feed inlet. A material guiding hopper 22 is fixedly connected to the bottom side of the circumferential surface of the cylinder 17, and the bottom port of the material guiding hopper 22 is arranged inside the lower box body 2. A protective cover 23 is connected between the box body 2 and the cylinder 17. An impact plate is installed on the inner wall of the top side of the protective cover 23. When screening, the biomass particles to be screened enter the cylinder 17 through the feed hopper 18. The second motor 19 is started to make the rotating roller 20 drive the partition turning and throwing plates 21 to rotate. Through the rotation of the partition turning and throwing plates 21, the biomass particles can be turned and thrown onto the impact plate on the inner wall of the top side of the protective cover 23. Through the impact of the impact plate, the loose biomass particles can be broken, and together with the qualified and compact biomass particles, they flow into the screening drum 3 through the material guiding hopper 22. Before screening, through the impact on the biomass particles, the loose biomass particles can be impacted into fragments, which is convenient for the subsequent smooth discharge of the broken debris through the filter holes 11, thus significantly improving the screening efficiency. And through the impact on the biomass particles, it not only helps to break the loose particles, but also ensures that the particles finally passing through the screening drum 3 are relatively uniform, which is beneficial to maintaining the stability and consistency during the combustion of the biomass particles and improving the product quality.

[0022] A debris collection groove 24 is formed on the inclined support plate 1, and the debris collection groove 24 is arranged below the screening drum 3. A finished product material guiding groove 25 is fixedly connected to the bottom port of the box body 2. When using this device, by setting the debris collection groove 24, the screened debris can be collected. By setting the finished product material guiding groove 25, it is convenient to discharge the screened finished biomass through the finished product material guiding groove 25.

[0023] Working principle: Since the existing biomass pellet production and screening device cannot break up the loose pellets in the biomass pellets before screening, and since the loose pellets cannot be fully broken up, they cannot pass through the sieve holes smoothly, resulting in a reduction in screening efficiency. Moreover, the finished biomass pellets are mixed with loose pellets, so the quality and uniformity of the biomass pellets cannot be ensured, greatly reducing the product quality. Also, during screening, the sieve mesh is prone to clogging and needs to be frequently cleaned, resulting in a relatively high maintenance cost for screening. Therefore, in response to the above problems, a pellet production and screening device is proposed. When screening, the biomass pellets to be screened enter the cylinder 17 through the feed hopper 18. The second motor 19 is started to drive the rotating roller 20 to drive the partition turning and throwing plate 21 to rotate. Through the rotation of the partition turning and throwing plate 21, the biomass pellets can be turned and thrown onto the impact plate on the inner wall of the top side of the protective cover 23. Through the impact of the impact plate, the loose biomass pellets can be broken up and flow into the screening drum 3 together with the qualified and compact biomass pellets through the guide hopper 22. Before screening, by impacting the biomass pellets, the loose biomass pellets can be impacted into fragments, facilitating the subsequent smooth discharge of the broken fragments through the filter holes 11, thus significantly improving the screening efficiency. Moreover, by impacting the biomass pellets, it not only helps to break up the loose pellets but also ensures that the pellets finally passing through the screening drum 3 are relatively uniform, which is beneficial to maintaining the stability and consistency during the combustion of the biomass pellets and improving the product quality.

[0024] When screening, after the broken-up loose biomass pellets and the compact finished biomass pellets enter the screening drum 3 together, the first motor 7 is started to drive the driving gear 8 to rotate, and then the driven gear ring 6 drives the screening drum 3 to rotate. Through the high-speed rotation of the screening drum 3, the debris mixed in the biomass pellets falls into the debris collection tank 24 through the filter holes 11. The finished biomass pellets will slide downward along the screening drum 3 and pass through the finished product guide chute 25, thus effectively screening the biomass pellets and removing the debris mixed in the finished product, ensuring the quality of the finished product. Also, during the screening process, the air pump 12 is started to make the gas flow into the hollow tube 14 through the air delivery pipe 13 and finally spray out through the spray pipe 15. Thus, the debris blocking the filter holes 11 can be pushed out of the filter holes 11 under the action of the high-pressure gas, avoiding the occurrence of the clogging phenomenon of the filter holes 11, ensuring the subsequent screening effect, and not requiring repeated cleaning of the filter holes 11 during shutdown, greatly reducing the relatively high maintenance cost of the screening equipment.

[0025] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A particle production screening device, characterized in that: The invention comprises an inclined support plate (1); a box body (2) is fixedly connected to the inclined support plate (1); a screening drum (3) is arranged in the box body (2); two fixing seats (4) are fixedly connected to the top ends of the inclined support plate (1); an auxiliary support wheel (5) is rotatably mounted in each fixing seat (4); a screening drum (3) is rotatably mounted in cooperation with the plurality of auxiliary support wheels (5); a plurality of annular grooves (10) are provided on the outer circumferential surface of the screening drum (3); a plurality of filter holes (11) are provided in each annular groove (10); a driven gear ring (6) is sleeved on the outer surface of the screening drum (3); a rectangular through groove (9) is provided on the top side of the box body (2 ... plurality of filter holes (11) are provided in each annular groove (10); a plurality of filter holes (11) are provided in each annular groove (10); a plurality of filter holes (11) are provided in each annular groove (10); a plurality of filter holes (11) are provided in each annular groove (10); a plurality of filter holes (11) are provided in each annular groove (10); a plurality of filter holes (11) are provided in each annular groove ( A first motor (7) is installed, a driving gear (8) is installed at the output end of the first motor (7), and the driving gear (8) is meshed with a driven gear ring (6), and the driving gear (8) is arranged in a rectangular through groove (9). A hollow tube (14) is welded to the side wall of the box body (2), and a plurality of nozzles (15) are installed on the hollow tube (14), and the nozzles (15) are arranged through the box body (2), and the nozzles of the nozzles (15) are located in the annular groove (10). An air pump (12) is installed on the top side of the box body (2), and the air outlet of the air pump (12) is connected to a gas pipeline (13), and another pipe of the gas pipeline (13) is connected to the hollow tube (14).

2. A particle production and screening device according to claim 1, characterized in that: A fixing frame (16) is fixedly connected to the side wall of the inclined support plate (1), a cylinder (17) is fixedly connected to the fixing frame (16), and a second motor (19) is installed on one side wall of the cylinder (17).

3. A particle production screening device according to claim 2, characterized in that: The output end of the second motor (19) is connected to a rotating shaft, and the other end of the rotating shaft is rotatably mounted on the other side wall of the cylinder (17). A rotating roller (20) is mounted on the rotating shaft, and a plurality of partition flipping plates (21) are fixed to the outer surface of the rotating roller (20).

4. A particle production screening device according to claim 2, characterized in that: A feed port is provided at the upper end of the circumferential surface of the cylinder (17), a feed hopper (18) is fixedly connected to the end of the feed port, a guide hopper (22) is fixedly connected to the bottom side of the circumferential surface of the cylinder (17), and the bottom end of the guide hopper (22) is arranged in the lower box (2).

5. A particle production and screening device according to claim 1, characterized in that: A protective cover (23) is connected between the box body (2) and the cylinder body (17), and an impact plate is installed on the inner wall of the top side of the protective cover (23).

6. A particle production and screening device according to claim 1, characterized in that: The inclined support plate (1) is provided with a debris collection groove (24), and the debris collection groove (24) is arranged below the screening drum (3), and a finished product guide groove (25) is fixedly connected to the bottom end of the box body (2).

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