CN220900944U - Graded screening mechanism for granular fuel - Google Patents

Abstract

The utility model discloses a grading and screening mechanism for granular fuels, belongs to the technical field of granular fuel screening, and aims to solve the problems that granular fuels containing powdery substances cannot be continuously screened in the prior art, the screening efficiency is low, and blocking easily occurs when the conveying amount of the granular fuels is large. Including box, dust absorption subassembly, fender dirt subassembly, screening subassembly, discharging pipe, dust absorption subassembly is installed at the upper surface of box, and fender dirt subassembly, screening subassembly are inside the box, and fender dirt subassembly fixed mounting is on the inside top of box, and fender dirt subassembly is in screening subassembly top, and screening subassembly below is equipped with guide assembly, and guide assembly below is equipped with two sets of symmetric distribution's first swash plate, and the discharging pipe setting is in box side below, and fender dirt subassembly includes connecting block, dust board. The granular fuel screening mechanism can realize continuous screening of the granular fuel, is high in working efficiency and high in efficiency of conveying the granular fuel, and effectively solves the problem of blocking.

Description

Graded screening mechanism for granular fuel

Technical Field

The utility model belongs to the technical field of screening of granular fuels, and particularly relates to a grading and screening mechanism of granular fuels.

Background

The pellet fuel is a heating fuel made from biomass compression. The most common type is wood particles. As a form of wood fuel, wood particles are typically made from compacted sawdust or other waste produced from sawn and other wood products. In the production of the granular fuel, a lot of powdery substances exist, and the powdery substances can reduce the combustion heat value of the granular fuel and influence the quality of the granular fuel.

In order to solve the problems that the existence of powdery substances can influence the combustion utilization rate and the raw material conversion rate of biomass fuel is also reduced, chinese patent CN112893082A discloses a biomass fuel screening device which comprises a screening box, wherein the top of the screening box is connected with a feed pipe, an end cover is connected to the feed pipe, the top of the screening box is also connected with a dust collecting bag, a mesh screen is arranged in the screening box, a guide plate is obliquely arranged below the mesh screen, a discharge pipe is connected to the outer wall of the box body of the screening box, and the discharge pipe is positioned at the low end of the guide plate; according to the biomass fuel screening device, the top of the screening box is also connected with the dust collecting bag, the screening box is internally provided with the mesh screen, the guide plate is obliquely arranged below the mesh screen, the outer wall of the box body of the screening box is connected with the discharging pipe, the discharging pipe is positioned at the lower end of the guide plate, in the screening process, the end cover plugs the feeding pipe, and screened dust particles are collected by the dust collecting bag.

In the biomass fuel screening device disclosed in the above patent publication, although the powdery material in the granular fuel can be screened, in order to prevent the powdery material from drifting into the air after the granular fuel containing the powdery material is pushed into the feed pipe, the feed pipe needs to be blocked by the end cover, the continuous screening of the granular fuel containing the powdery material cannot be realized, the problem of low screening efficiency exists, meanwhile, the inclined guide plate can guide the granular fuel to enter the discharge pipe, but the conveying efficiency is low, when the conveying amount of the granular fuel is large, the problem of easy occurrence of blocking is solved, and a technical measure needs to be adopted to solve the problem that the continuous screening of the granular fuel containing the powdery material cannot be realized, and the problems of low screening efficiency and easy occurrence of blocking when the conveying amount of the granular fuel is large.

Disclosure of utility model

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a grading and screening mechanism for granular fuel, which aims to solve the problems that the prior art cannot realize continuous screening of granular fuel containing powdery substances, the screening efficiency is low, and blockage is easy to occur when the conveying amount of the granular fuel is large.

(2) Technical proposal

In order to solve the technical problems, the utility model provides a grading screening mechanism for granular fuel, which comprises a box body, a dust collection assembly, a dust blocking assembly, a screening assembly and a discharging pipe, wherein the dust collection assembly is arranged on the upper surface of the box body, the dust blocking assembly and the screening assembly are arranged in the box body, the dust blocking assembly is fixedly arranged at the top end in the box body, the dust blocking assembly is arranged above the screening assembly, a guide assembly is arranged below the screening assembly, two groups of first inclined plates which are symmetrically distributed are arranged below the guide assembly, the discharging pipe is arranged below the side surface of the box body, the dust blocking assembly comprises a connecting block and a dust blocking plate, the upper end of the connecting block is fixedly connected with the inner wall of the top end of the box body, a connecting plate is arranged at the central position of the lower surface of the connecting block, a round shaft penetrates through the lower end of the connecting plate, a groove which is matched with the connecting plate is arranged in the middle position of the upper end of the dust blocking plate, the dust baffle is internally provided with round holes, the round holes are matched with the round shafts, the screening assembly comprises a first screen plate and a first fixing plate, the two sides of the first screen plate are connected with a plurality of groups of springs which are uniformly distributed, the other ends of the springs are fixedly connected with the inner side wall of the box body, the first screen plate is internally provided with first screening holes which are uniformly distributed, the first fixing plate is provided with two groups, the first fixing plate is arranged at the lower part of the first screen plate, the first fixing plate is arranged on the inner side wall of the box body, the upper surface of the first fixing plate is fixedly provided with a plurality of groups of uniformly distributed first vibrating motors, the first vibrating motors are connected with the first screen plate, the guiding assembly comprises a fixing block, a rotating shaft and a second screen plate, one end of the fixing block is fixedly connected with the inner side wall of the box body, the other end of the fixing block is rotatably connected with the second screen plate through the rotating shaft, the second screen plate is obliquely arranged, high one end is towards the fixed block, and low one end is towards the discharging pipe, be equipped with evenly distributed's second screening hole in the second sieve, the second sieve is connected with the second vibration motor towards the one end of discharging pipe, second vibration motor lower part has the second fixed plate, and the second fixed plate is in first swash plate top, the second fixed plate is installed at the inside lateral wall of box, benefit from the setting that keeps off dirt subassembly, solve can not carry out continuous screening to the pellet fuel that contains powdered material, the problem of screening inefficiency, benefit simultaneously and lead the setting of subassembly, solve when pellet fuel delivery is big, take place the problem of putty easily.

Further, the one end of box upper surface is equipped with the inlet pipe, there is the apron inlet pipe top, benefites by the setting of apron, when screening mechanism does not work, prevents that the dust from falling into the box.

Furthermore, the first drawer is arranged below the inner part of the box body, and a plurality of groups of supporting legs are arranged at the lower part of the box body, so that the powder materials can be uniformly treated when being fully collected due to the arrangement of the first drawer.

Further, be equipped with the second swash plate below the inlet pipe, the inside lateral wall at the box is installed to the one end of second swash plate, second swash plate lower extreme and dust board lower extreme contact benefit from the setting of second swash plate, play the guide effect to the pellet fuel.

Further, the dust collection assembly comprises a dust collection pipe and a dust collection box, one end of the dust collection pipe penetrates through the upper surface of the box body, the other end of the dust collection pipe is connected to the dust collection box, and the dust collection box is fixedly arranged on the upper surface of the box body.

Furthermore, a second drawer is arranged below the inner part of the dust collection box, and filter cotton is arranged in the dust collection box, so that the arrangement of the second drawer is beneficial, and powdery substances absorbed by the absorption assembly can be uniformly treated.

Furthermore, the side face of the dust collection box is connected with an exhaust fan which is fixedly arranged on the upper surface of the box body.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, through the arrangement of the dust blocking component and the guide component, the problems that the particle fuel containing powdery substances can be continuously screened and the screening efficiency is low are solved, the dust blocking plate is rotationally connected with the connecting plate, after the powdery particle fuel enters the second inclined plate, the dust blocking plate can be rotated along the circular shaft under the pushing of the powdery particle fuel, and then the dust blocking plate is separated from the second inclined plate, after the powdery particle fuel falls, the dust blocking plate is contacted with the second inclined plate, so that the dust blocking effect is achieved, meanwhile, due to the arrangement of the guide component, the problem that the blocking is easy to occur when the conveying amount of the particle fuel is large is solved, the speed of the particle fuel entering the discharging pipe is accelerated by vibration of the second vibration motor, the discharging speed is improved, meanwhile, the first inclined plate is not blocked by the powdery substance under the vibration of the second vibration motor, and the falling of the powdery substance into the first inclined plate is accelerated

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the present utility model;

FIG. 3 is a schematic perspective view of a dust collection assembly;

FIG. 4 is an enlarged view of FIG. 2 at A;

FIG. 5 is a perspective view showing a separated state of the dust blocking assembly;

FIG. 6 is a schematic perspective view of a screen assembly;

fig. 7 is a schematic perspective view of a guide assembly.

The marks in the drawings are: 1. a case; 2. a first drawer; 3. support legs; 4. a dust collection assembly; 5. a dust blocking component; 6. a screen assembly; 7. a guide assembly; 8. a first swash plate; 9. a discharge pipe; 10. a feed pipe; 11. a cover plate; 12. a second swash plate; 401. a second drawer; 402. a dust collection pipe; 403. a dust collection box; 404. an exhaust fan; 501. a connecting block; 502. a connecting plate; 503. a circular shaft; 504. a round hole; 505. a dust-blocking plate; 601. a spring; 602. a first screening aperture; 603. a first screen plate; 604. a first fixing plate; 605. a first vibration motor; 701. a fixed block; 702. a rotating shaft; 703. a second screening aperture; 704. a second screen plate; 705. a second vibration motor; 706. and a second fixing plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The specific embodiment is a grading and screening mechanism for granular fuel, the structure of which is shown in figures 1, 2, 4, 5 and 7, and the grading and screening mechanism comprises a box body 1, a dust collection assembly 4, a dust blocking assembly 5, a screening assembly 6 and a discharging pipe 9, wherein the dust collection assembly 4 is arranged on the upper surface of the box body 1, the dust blocking assembly 5 and the screening assembly 6 are arranged in the box body 1, the dust blocking assembly 5 is fixedly arranged at the top end of the box body 1, the dust blocking assembly 5 is arranged above the screening assembly 6, a guiding assembly 7 is arranged below the screening assembly 6, two groups of symmetrically distributed first inclined plates 8 are arranged below the guiding assembly 7, the discharging pipe 9 is arranged below the side surface of the box body 1, the dust blocking assembly 5 comprises a connecting block 501 and a dust blocking plate 505, the upper end of the connecting block 501 is fixedly connected with the inner wall at the top end of the box body 1, a connecting plate 502 is arranged at the central position of the lower surface of the connecting block 501, a round shaft 503 is penetrated at the lower end of the connecting plate 502, the middle position of the upper end of the dust plate 505 is provided with a groove matched with the connecting plate 502, the dust plate 505 is internally provided with a round hole 504, the round hole 504 is matched with the round shaft 503, the guide component 7 comprises a fixed block 701, a rotating shaft 702 and a second sieve plate 704, one end of the fixed block 701 is fixedly connected with the inner side wall of the box body 1, the other end of the fixed block 701 is rotationally connected with the second sieve plate 704 through the rotating shaft 702, the second sieve plate 704 is obliquely arranged, one high end faces the fixed block 701, one low end faces the discharging pipe 9, the second sieve plate 704 is internally provided with second sieving holes 703 which are uniformly distributed, one end of the second sieve plate 704 faces the discharging pipe 9 is connected with a second vibrating motor 705, the lower part of the second vibrating motor 705 is provided with a second fixed plate 706, the second fixed plate 706 is arranged above the first inclined plate 8, the second fixed plate 706 is arranged on the inner side wall of the box body 1, one end of the upper surface of the box body 1 is provided with a feeding pipe 10, the upper part of the feeding pipe 10 is provided with a cover plate 11, the first drawer 2 is arranged below the inside of the box body 1, the plurality of groups of supporting legs 3 are arranged below the box body 1, the second inclined plate 12 is arranged below the feeding pipe 10, one end of the second inclined plate 12 is arranged on the inner side wall of the box body 1, the lower end of the second inclined plate 12 is contacted with the lower end of the dust baffle plate 505, when the screening mechanism is actually screened, the cover plate 11 of the screening mechanism is opened, the granular fuel containing powdery substances is fed into the box body 1 through the feeding pipe 10, when the granular fuel containing powdery substances enters the box body 1, the granular fuel containing powdery substances exert force on the dust baffle plate 505 through the guiding action of the second inclined plate 12, the dust baffle plate 505 rotates along the circular shaft 503 under the action of the granular fuel containing powdery substances, then the dust baffle plate 505 is separated from the second inclined plate 12, and after the granular fuel containing powdery substances falls, the dust baffle plate 505 rotates along the circular shaft 503 to contact the second inclined plate 12, so that the dust baffle effect is achieved.

Referring to fig. 3, the dust collection assembly 4 includes a dust collection tube 402 and a dust collection box 403, one end of the dust collection tube 402 passes through the upper surface of the box 1, the other end of the dust collection tube 402 is connected to the dust collection box 403, the dust collection box 403 is fixedly installed on the upper surface of the box 1, a second drawer 401 is arranged below the inner portion of the dust collection box 403, filter cotton is arranged in the dust collection box 403, an exhaust fan 404 is connected to the side surface of the dust collection box 403, the exhaust fan 404 is fixedly installed on the upper surface of the box 1, the exhaust fan 404 is started in the vibration process, the exhaust fan 404 is started to suck powdery substances into the dust collection tube 402, then the powdery substances are sent into the dust collection box 403 under the suction of the exhaust fan 404, and the powdery substances fall into the second drawer 401 under the filtering action of the filter cotton.

Referring to fig. 6, the screen assembly 6 includes a first screen plate 603, a first fixed plate 604, a plurality of groups of springs 601 evenly distributed are connected to two sides of the first screen plate 603, the other end of the springs 601 is fixedly connected to the inner side wall of the box 1, a first screening hole 602 evenly distributed is formed in the first screen plate 603, two groups of first fixed plates 604 are arranged at the lower portion of the first screen plate 603, the first fixed plate 604 is mounted on the inner side wall of the box 1, a plurality of groups of first vibration motors 605 evenly distributed are fixedly mounted on the upper surface of the first fixed plate 604, the first vibration motors 605 are connected with the first screen plate 603, the particle fuel containing powder substances enters the screen assembly 6, the first vibration motors 605 are started, the first vibration motors 605 start to drive the first screen plate 603 to vibrate, the springs 601 vibrate, the powder substances in the particle fuel containing powder substances are mixed in the first screen plate 603 vibrate, the sieved particle fuel enters the guide assembly 7 through the first screening hole 602, the second vibration motors 705 are started, the second vibration motors 705 start to drive the second vibration motors 704 to face the first screen plate 9, the second vibration motors 704 slide towards the first screen plate 704, the first dust absorption material is not to slide down along the first dust absorption material, the first dust absorption material is completely falls down along the first dust absorption material 8, the first dust absorption material is completely falls down along the first dust absorption material 9, and is completely down along the first dust absorption material, and is completely separated, and is separated by the first dust absorption material.

Working principle: in actual screening, the cover plate 11 of the screening mechanism is opened, granular fuel containing powdery substances is fed into the box body 1 through the feed pipe 10, when the granular fuel containing powdery substances enters the box body 1, the granular fuel containing powdery substances exerts force on the dust plate 505 through the guiding action of the second inclined plate 12, the dust plate 505 rotates along the circular shaft 503 under the action of the granular fuel containing powdery substances, then the dust plate 505 is separated from the second inclined plate 12, after the granular fuel containing powdery substances falls, the dust plate 505 rotates along the circular shaft 503 to contact the second inclined plate 12, the function of blocking dust is achieved, the granular fuel containing powdery substances enters the screening assembly 6, the first vibration motor 605 is started, the first screen plate 603 is driven to vibrate, the first screen plate 603 vibrates to drive the spring 601 to vibrate, when the first sieve plate 603 shakes, the powdery substances in the granular fuel containing the powdery substances are shaken up, the sieved granular fuel enters the guide assembly 7 through the first sieving holes 602, the second shaking motor 705 is started to drive the second sieve plate 704 to shake towards one end of the discharging pipe 9, one end of the second sieve plate 704 far away from the discharging pipe 9 rotates along the rotating shaft 702, the second sieve plate 704 shakes to send the granular fuel into the discharging pipe 9, the powdery substances which are not fully absorbed by the dust collection assembly 4 fall through the second sieve plate 704, the powdery substances slide into the first drawer 2 under the guide of the first inclined plate 8, the exhaust fan 404 is started in the shaking process, the exhaust fan 404 is started to suck the powdery substances into the dust collection pipe 402, then the powdery substances are sent into the dust collection box 403 through the dust collection pipe 402 under the pumping of the exhaust fan 404, the powdery substance falls down into the second drawer 401 by the filtering action of the filter cotton.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a classifying and screening mechanism for granular fuel, includes box (1), dust absorption subassembly (4), keep off dirt subassembly (5), screening subassembly (6), discharging pipe (9), its characterized in that, dust absorption subassembly (4) are installed on the upper surface of box (1), keep off dirt subassembly (5), screening subassembly (6) inside box (1), keep off dirt subassembly (5) fixed mounting and be on the inside top of box (1), keep off dirt subassembly (5) and be above screening subassembly (6), screening subassembly (6) below is equipped with guide assembly (7), guide assembly (7) below is equipped with two sets of symmetrically distributed's first swash plate (8), discharging pipe (9) set up in box (1) side below;

The dust blocking assembly (5) comprises a connecting block (501) and a dust blocking plate (505), wherein the upper end of the connecting block (501) is fixedly connected to the inner wall of the top end of the box body (1), a connecting plate (502) is installed at the central position of the lower surface of the connecting block (501), a round shaft (503) is penetrated at the lower end of the connecting plate (502), a groove matched with the connecting plate (502) is formed in the middle position of the upper end of the dust blocking plate (505), a round hole (504) is formed in the dust blocking plate (505), and the round hole (504) is matched with the round shaft (503);

The screening assembly (6) comprises a first screening plate (603) and first fixing plates (604), wherein multiple groups of springs (601) which are uniformly distributed are connected to two sides of the first screening plate (603), the other ends of the springs (601) are fixedly connected to the inner side wall of the box body (1), first screening holes (602) which are uniformly distributed are formed in the first screening plate (603), the first fixing plates (604) are arranged in two groups, the first fixing plates (604) are arranged at the lower part of the first screening plate (603), the first fixing plates (604) are arranged on the inner side wall of the box body (1), multiple groups of first vibrating motors (605) which are uniformly distributed are fixedly arranged on the upper surface of the first fixing plates (604), and the first vibrating motors (605) are connected with the first screening plate (603);

Guide subassembly (7) are including fixed block (701), pivot (702), second sieve (704), fixed block (701) one end fixed connection is at box (1) inside lateral wall, the fixed block (701) other end rotates through pivot (702) and second sieve (704) and is connected, second sieve (704) slope sets up, and high one end is towards fixed block (701), and low one end is towards discharging pipe (9), be equipped with evenly distributed's second screening hole (703) in second sieve (704), second sieve (704) are connected with second vibrating motor (705) towards the one end of discharging pipe (9), second vibrating motor (705) lower part has second fixed plate (706), and second fixed plate (706) are in first swash plate (8) top, second fixed plate (706) are installed at box (1) inside lateral wall.

2. A classifying and screening mechanism for granular fuel according to claim 1, wherein a feed pipe (10) is provided at one end of the upper surface of the casing (1), and a cover plate (11) is provided above the feed pipe (10).

3. A classifying and screening mechanism for granular fuel according to claim 1, wherein a first drawer (2) is provided below the inside of the casing (1), and a plurality of sets of supporting legs (3) are provided below the casing (1).

4. A classifying and screening mechanism for granular fuel according to claim 2, wherein a second inclined plate (12) is arranged below the feed pipe (10), one end of the second inclined plate (12) is arranged on the inner side wall of the box body (1), and the lower end of the second inclined plate (12) is in contact with the lower end of the dust plate (505).

5. A classifying and screening mechanism for granular fuel according to claim 1, wherein the dust collection assembly (4) comprises a dust collection pipe (402) and a dust collection box (403), one end of the dust collection pipe (402) penetrates through the upper surface of the box body (1), the other end of the dust collection pipe (402) is connected to the dust collection box (403), and the dust collection box (403) is fixedly arranged on the upper surface of the box body (1).

6. A classifying and screening mechanism for granular fuel according to claim 5, wherein a second drawer (401) is provided below the inner portion of said dust collection box (403), and filter cotton is provided in said dust collection box (403).

7. The classifying and screening mechanism for granular fuel according to claim 6, wherein an exhaust fan (404) is connected to the side of the dust collection box (403), and the exhaust fan (404) is fixedly installed on the upper surface of the box body (1).