Biomass particle cooling and screening device

Abstract

The invention discloses a biomass particle cooling and screening device, and belongs to the technical field of biomass particle production. The conveying belt is installed in the frame body and used for conveying biomass particles, and a through hole is formed in a belt body of the conveying belt; the air exhaust assembly is fixedly installed on the frame body, and an air inlet of the air exhaust assembly is located above the conveying belt; the air inlet assemblies are installed on the two side faces of the frame body, the air inlet assemblies are connected with external refrigeration equipment, and the air inlet ends of the air inlet assemblies are located below the upper-layer belt body of the conveying belt; the bearing assembly is used for supporting an upper-layer belt body of the conveying belt; the receiving plate is mounted in the frame body and is used for receiving the biomass particle chips penetrating through the conveying belt; when the air inlet assembly works, the bearing assembly drives the upper side belt body of the conveying belt to continuously vibrate, the cooling work and the screening work are integrated, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of biomass particle production, and in particular to a biomass particle cooling and screening device. Background Art

[0002] In the production process of biomass pellets, the pellets often need to be cooled and screened to ensure product quality. Most of the existing cooling and screening of biomass pellets require separate use of two devices to operate successively, which will affect production efficiency and reduce production efficiency. In order to solve the above problems, the present invention provides a biomass pellet cooling and screening device. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a biomass particle cooling and screening device, which integrates the cooling work and the screening work together, thereby improving the production efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a biomass particle cooling and screening device, comprising: Frame; A conveyor belt, which is installed inside the frame and used to transport biomass particles, and a through hole is opened on the belt body of the conveyor belt; An air extraction component, wherein the air extraction component is fixedly mounted on the frame, and an air inlet thereof is located above the conveyor belt; An air intake assembly, the air intake assembly is installed on two sides of the frame, the air intake assembly is connected to external refrigeration equipment, and the air intake end of the air intake assembly is located below the upper belt body of the conveyor belt; A supporting assembly, the supporting assembly is used to support the upper belt body of the conveyor belt; A receiving plate, which is installed inside the frame and is used to receive biomass particle debris passing through the conveyor belt; When the air intake assembly is working, the supporting assembly drives the upper belt body of the conveyor belt to vibrate continuously.

[0005] Preferably, the supporting assembly comprises: Two supporting plates are slidably mounted on the inner side walls of the frame, and a plurality of supporting shafts are fixedly connected between the two supporting plates.

[0006] Preferably, a plurality of sliding blocks are fixedly connected to one side surface of the two supporting plates which are away from each other, and the sliding blocks are slidably installed in sliding grooves provided on the inner side surface of the frame body.

[0007] Preferably, a first spring is connected between the slider and the upper end wall of the slide slot, and the first spring has a pressing force that presses the slider against the lower end wall of the slide slot.

[0008] Preferably, the air intake assembly includes: multiple air intake pipes, the inner ends of the air intake pipes pass through the side walls of the frame and extend to the interior of the frame, and the air intake pipes are fixedly connected to the frame, an air intake motor is installed inside the air intake pipes, and fan blades are fixedly connected to the output shaft of the air intake motor.

[0009] Preferably, a guide pipe is rotatably installed at the inner end of the air inlet pipe, and the guide pipe is sleeved on the air inlet pipe through an opening provided at one end thereof. A plurality of protrusions are integrally formed on the side surface of the guide pipe, and an air outlet is provided on an end surface of the protrusion away from the air inlet pipe. The guide pipe rotates synchronously with the fan blades.

[0010] Preferably, a guide protrusion is fixedly connected to the inner side surface of one end of the guide pipe away from the air inlet pipe, and the guide protrusion is thick in the middle and thin at the periphery.

[0011] Preferably, a tensioning shaft for tensioning the conveyor belt is provided inside the frame, and both ends of the tensioning shaft are rotatably connected to limit blocks, and the limit blocks are slidably connected to a groove provided on the inner wall of the frame, and a second spring is connected between the limit block and one end wall of the groove.

[0012] Preferably, the short side of the receiving plate is installed inside the frame in an inclined state, and a discharge outlet is provided on the side of the receiving plate with a lower height and located on the side wall of the frame.

[0013] The beneficial effects of the present invention are: The present invention achieves screening of biomass particles during cooling of the biomass particles by arranging through holes, air extraction components and air intake components on the conveyor belt, separating debris therein from the biomass particles, thereby improving the product quality of the biomass particles.

[0014] The present invention, through the arrangement of the air intake assembly, can drive the supporting assembly to drive the conveyor belt to vibrate continuously when the air intake assembly is working, so that the biomass particles can vibrate on the conveyor belt, which not only allows the cold air discharged through the air intake assembly to pass through the conveyor belt better, but also enables a better screening effect of the biomass particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic structural diagram of a biomass particle cooling and screening device provided in an embodiment of the present invention.

[0017] Figure 2 It is a cross-sectional view of the frame of the present invention.

[0018] Figure 3 For the present invention Figure 2 Enlarged view of point A.

[0019] Figure 4 It is a schematic diagram of assembling the transmission belt and the frame of the present invention.

[0020] Figure 5 It is a schematic diagram of the assembly of the conveyor belt and the supporting plate of the present invention.

[0021] Figure 6 It is an exploded view of the air intake pipe and the guide pipe of the present invention.

[0022] Description of reference numerals: 1. Frame, 2. Conveyor belt, 3. Exhaust assembly, 4. Air intake assembly, 401. Air intake pipe, 402. Guide pipe, 403. Air intake motor, 404. Fan blade, 405. Raised portion, 406. Guide protrusion, 5. Support assembly, 501. Support plate, 502. Support shaft, 503. First spring, 504. Slider, 505. Slide groove, 6. Receiving plate, 7. Through hole, 8. Tensioning shaft, 9. Limit block, 10. Groove, 11. Second spring, 12. Discharge outlet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present invention provides a biomass particle cooling and screening device, such as Figures 1 to 6 shown.

[0025] Embodiment 1: A biomass particle cooling and screening device comprises a frame 1, wherein a conveyor belt 2 for conveying biomass particles is installed inside the frame 1, and the conveyor belt 2 is driven by a driving motor installed on the frame 1. Multiple transmission shafts of the conveyor belt 2 are rotatably installed inside the frame 1, and any transmission shaft is connected to the output shaft of the driving motor. The belt body of the conveyor belt 2 is installed on multiple transmission shafts, and the rotation of the transmission shafts can drive the belt body to move, thereby completing the conveying of biomass particles. The belt body of the conveyor belt 2 is provided with multiple through holes 7. In addition, the belt body of the conveyor belt 2 can be made of a material with good thermal conductivity (such as a steel belt conveyor belt).

[0026] A tensioning shaft 8 for tensioning the conveyor belt 2 is also installed inside the frame 1. Both ends of the tensioning shaft 8 are rotatably connected to limit blocks 9. The limit blocks 9 are slidably connected to a groove 10 provided on the inner wall of the frame 1, and a second spring 11 is connected between the limit block 9 and one end of the groove 10. The second spring 11 has a pulling force to pull the limit block 9 downward, so that the conveyor belt 2 can always be in a tensioned state during the vibration process, thereby stably transmitting biomass particles.

[0027] A vacuum assembly 3 is provided above the conveyor belt 2, and the vacuum assembly 3 is fixedly connected to the frame 1. The vacuum assembly 3 includes multiple vacuum frames, and the vacuum frames are in the shape of a cone with a larger bottom and a smaller top. The multiple vacuum frames are connected to the vacuum pipe, and the vacuum pipe is connected to the external negative pressure vacuum equipment.

[0028] An air intake assembly 4 is also installed on the side wall of the frame 1, and the air intake assembly 4 includes an air intake pipe 401. The air intake end of the air intake pipe 401 passes through the side wall of the frame 1 and extends to the bottom of the upper belt body of the conveyor belt 2. The air intake pipe 401 is fixedly connected to the side wall of the frame 1, and the air intake pipe 401 is communicated with the external refrigeration equipment.

[0029] An air intake motor 403 is installed inside the air intake pipe 401, and a fan blade 404 is fixedly connected to the motor shaft of the air intake motor 403. The rotation of the motor shaft of the air intake motor 403 can drive the fan blade 404 to rotate, so that the cold air generated by the refrigeration equipment can enter the interior of the frame 1. Then, under the action of the exhaust component 3, the cold air will pass through the through holes 7 opened on the conveyor belt 2 and the biomass particles on the conveyor belt 2, and finally be extracted by the exhaust component 3, thereby realizing the cooling of the biomass particles.

[0030] Embodiment 2 Further, on the basis of the first embodiment, in order to ensure that the cold air entering the frame 1 through the air inlet pipe 401 can be more evenly dispersed, a guide pipe 402 is rotatably installed at the air outlet end of the air inlet pipe 401, and the guide pipe 402 is sleeved on the air inlet pipe 401 through an opening provided at one end thereof, and a plurality of protrusions 405 are integrally formed on the side of the guide pipe 402, and an air outlet is provided on one end face of the protrusion 405 away from the air inlet pipe 401, and the guide pipe 402 rotates synchronously with the fan blade 404, and the guide pipe 402 is connected to the central axis of the fan blade 404 through a connecting frame, so that the guide pipe 402 and the fan blade 404 can rotate synchronously. , and the gas entering the guide tube 402 will be discharged through the air outlet, so that the guide tube 402 will continue to rotate while discharging the gas, and then the cold air can be blown out in a rotating airflow, so that the cold air can be better diffused and distributed inside the frame 1, thereby improving the cooling effect on the biomass particles on the conveyor belt 2 (because the rotating airflow will form a jet along the tangential direction during the process of being sent out, and form a vortex under the action of multiple jets, and the central area of ​​the vortex will form a negative pressure area, and this negative pressure area will induce the surrounding air to quickly mix with the supply air, thereby achieving a wider diffusion and mixing of the sent airflow with the air).

[0031] In order to allow the air to be discharged better through the air outlet, a guide protrusion 406 is fixedly connected to the inner side surface of the end of the guide pipe 402 away from the air inlet pipe 401. The shape of the guide protrusion 406 is thick in the middle and thin around the edges. The guide protrusion 406 can guide the air entering the guide pipe 402 so that it can be better discharged through the air outlet.

[0032] Embodiment three: In order to further enable the conveyor belt 2 to move more stably when conveying biomass particles, a supporting assembly 5 is installed inside the frame 1. The supporting assembly 5 includes two supporting plates 501, and a plurality of supporting shafts 502 are fixedly connected between the two supporting plates 501. The supporting plates 501 are slidably installed on the inner wall of the frame 1 through a plurality of sliders 504 fixedly connected thereto. The inner wall of the frame 1 is provided with a slide groove 505 adapted to the slider 504. The slider 504 is slidably installed inside the slide groove 505. A first spring 503 is connected between the slider 504 and the upper end groove wall of the slide groove 505. One end of the first spring 503 is fixedly connected to the slider 504, and the other end is fixedly connected to the upper end groove wall of the slide groove 505. The first spring 503 has a pressing force that presses the slider 504 against the lower end groove wall of the slide groove 505, so that the supporting plate 501 can better support the conveyor belt 2.

[0033] The support plate 501 is located above the guide tube 402. During the continuous rotation of the guide tube 402, the multiple protrusions 405 will alternately press against the support plate 501, so that the support plate 501 overcomes the pressing force of the first spring 503 and moves upward. After the current protrusion 405 passes over the support plate 501 and before the next protrusion 405 presses against the support plate 501, the support plate 501 will drop under the pressing action of the first spring 503, so that the support plate 501 can drive the upper belt body of the conveyor belt 2 to vibrate continuously, thereby improving the screening effect. At the same time, the vibration will also make the biomass particles on the conveyor belt 2 looser, so that the cold air can better pass through the through holes 7 and the biomass particles, and then can further improve the cooling effect.

[0034] The sieved debris will pass through the through hole 7 and fall onto the receiving plate 6. The receiving plate 6 is fixedly connected to the inside of the frame 1, and the short side of the receiving plate 6 is installed in the inside of the frame 1 in an inclined state. A discharge port 12 is provided on the side of the receiving plate 6 with a low height and located on the side wall of the frame 1. The discharge port 12 is provided on the side wall of the frame 1 and is located on the side of the receiving plate 6 with a low height. The debris falling on the receiving plate 6 will slide and be discharged through the discharge port 12 under the action of its own gravity.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A biomass particle cooling and screening device, characterized in that: include: Frame (1); A conveyor belt (2), the conveyor belt (2) being installed inside the frame (1) and used for transporting biomass particles, and a through hole (7) being provided on the belt body of the conveyor belt (2); An air extraction component (3), the air extraction component (3) being fixedly mounted on the frame (1), and having an air inlet located above the conveyor belt (2); An air intake assembly (4), the air intake assembly (4) being mounted on two side surfaces of the frame (1), the air intake assembly (4) being interconnected with external refrigeration equipment, and the air intake end of the air intake assembly (4) being located below the upper belt body of the conveyor belt (2); A supporting assembly (5), the supporting assembly (5) being used to support the upper belt body of the conveyor belt (2); A receiving plate (6), the receiving plate (6) being installed inside the frame (1) and used for receiving biomass particle debris passing through the conveyor belt (2); When the air intake assembly (4) is in operation, the supporting assembly (5) drives the upper belt body of the conveyor belt (2) to vibrate continuously.

2. A biomass particle cooling and screening device as claimed in claim 1, characterized in that: The supporting component (5) comprises: Two supporting plates (501), the two supporting plates (501) are slidably mounted on the inner side wall of the frame (1), and a plurality of supporting shafts (502) are fixedly connected between the two supporting plates (501).

3. A biomass particle cooling and screening device as claimed in claim 2, characterized in that: A plurality of sliding blocks (504) are fixedly connected to one side surface of the two supporting plates (501) that is away from each other. The sliding blocks (504) are slidably mounted in sliding grooves (505) provided on the inner side surface of the frame (1).

4. A biomass particle cooling and screening device as claimed in claim 3, characterized in that: A first spring (503) is connected between the slider (504) and the upper end wall of the slide groove (505), and the first spring (503) has a pressing force that causes the slider (504) to press against the lower end wall of the slide groove (505).

5. The biomass particle cooling and screening device according to claim 2, characterized in that: The air intake assembly (4) comprises: a plurality of air intake pipes (401), the inner ends of the air intake pipes (401) passing through the side walls of the frame (1) and extending into the interior of the frame (1), and the air intake pipes (401) are fixedly connected to the frame (1), an air intake motor (403) is installed inside the air intake pipes (401), and a fan blade (404) is fixedly connected to the output shaft of the air intake motor (403).

6. A biomass particle cooling and screening device as claimed in claim 5, characterized in that: A guide pipe (402) is rotatably mounted on the inner end of the air intake pipe (401); the guide pipe (402) is sleeved on the air intake pipe (401) through an opening provided at one end thereof; a plurality of protrusions (405) are integrally formed on the side surface of the guide pipe (402); an air outlet is provided on one end surface of the protrusion (405) away from the air intake pipe (401); and the guide pipe (402) rotates synchronously with the fan blade (404).

7. A biomass particle cooling and screening device as claimed in claim 6, characterized in that: A flow guide protrusion (406) is fixedly connected to the inner side surface of one end of the flow guide pipe (402) away from the air inlet pipe (401), and the shape of the flow guide protrusion (406) is thick in the middle and thin at the periphery.

8. The biomass particle cooling and screening device according to claim 1, characterized in that: A tensioning shaft (8) for tensioning the conveyor belt (2) is provided inside the frame (1), and both ends of the tensioning shaft (8) are rotatably connected to limit blocks (9), the limit blocks (9) are slidably connected in a groove (10) provided on the inner wall of the frame (1), and a second spring (11) is connected between the limit block (9) and a groove wall at one end of the groove (10).

9. The biomass particle cooling and screening device according to claim 1, characterized in that: The short side of the receiving plate (6) is installed in an inclined state inside the frame (1), and a discharge outlet (12) is provided on a side of the receiving plate (6) at a lower height and located on a side wall of the frame (1).

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