Dry particle distribution system

Abstract

The utility model discloses a dry granule distributing system which comprises a feeding hopper, a first feeding assembly, a dry granule distributing machine, a green brick conveying device and a material sucking and recycling device, the first feeding assembly is arranged between the feeding hopper and the dry granule distributing machine, the green brick conveying device is arranged on the lower side of the dry granule distributing machine, and the material sucking and recycling device comprises a material sucking device and a recycling hopper. The material suction device is arranged on the upper side of the green brick conveying device, the material suction device can suck dry particles which are not stuck by glue on green bricks on the green brick conveying device and collect the dry particles into the recycling hopper, and the recycling hopper is arranged on the upper side of the first feeding assembly. And the material sucking device sucks the dry particles which are not stuck by the glue on the green bricks into the recycling hopper, and the dry particles in the recycling hopper are added to the first feeding assembly and then are conveyed and utilized to participate in material distribution. The sucked dry granules in the dry granule distributing system can be automatically recycled to the first feeding assembly for reuse, so that the dry granules do not need to be collected into a collecting bag for manual treatment, and the workload of workers can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic production, in particular to a dry granule feeding system. Background Art

[0002] At present, there are glue dry granule processes and equipment in the ceramic industry. The dry granules are fed onto the green body passing under the feeding roller in the dry granule feeder, and then the dry granules not adhered to the green body surface by glue are sucked and recovered by a suction device. Currently, the recovered dry granules are usually collected in a collection bag. After a certain amount is collected, the dry granules in the collection bag are manually poured into the feeding hopper for reuse. In this way, it is necessary to manually process the recovered dry granules regularly, increasing the workload of the workers. Summary of the Utility Model

[0003] The main object of the utility model is to propose a dry granule feeding system, aiming to solve the technical problem that the recovered dry granules in the prior art need to be manually processed regularly, increasing the workload of the workers.

[0004] To achieve the above object, the utility model proposes a dry granule feeding system, including a feeding hopper, a first feeding component, a dry granule feeder, a green body conveying device, and a suction recovery device. The feeding hopper is arranged above the first feeding component, and the feeding hopper can add dry granules to the first feeding component. The first feeding component is arranged between the feeding hopper and the dry granule feeder, and the first feeding component can convey the dry granules to the dry granule feeder. The green body conveying device is arranged below the dry granule feeder, and the dry granule feeder can feed the dry granules onto the green body on the green body conveying device. The suction recovery device includes a suction device and a recovery hopper. The suction device is arranged above the green body conveying device, and the green body conveying device can convey the green body from one side close to the dry granule feeder to the side of the suction device. The suction device can suck the dry granules not adhered to the green body on the green body conveying device and collect them into the recovery hopper. The recovery hopper is arranged above the first feeding component, and the recovery hopper can add the sucked dry granules to the first feeding component.

[0005] Dry granules can be added through the feeding hopper. The dry granules are conveyed to the dry granule feeder by the first feeding component. The green body is conveyed on the green body conveying device. The dry granule feeder feeds the dry granules onto the green body. Then, the suction device sucks the dry granules not adhered to the green body onto the recovery hopper. The dry granules in the recovery hopper are added to the first feeding component again for conveying and reuse in the feeding process. In this dry granule feeding system, the sucked dry granules can be automatically recovered to the first feeding component for reuse, so that it is not necessary to collect them in a collection bag and then manually process them, reducing the workload of the workers.

[0006] Preferably, the dry granular material distribution system further comprises a heating device, wherein the heating device is disposed on the upper side of the brick blank conveying device, and the heating device is disposed between the dry granular material distribution machine and the material suction device, and the heating device can heat the distributed brick blanks.

[0007] The heating device heats the bricks between the dry particle distributor and the absorber, which can accelerate the solidification of the glue and dry particles on the bricks, make the dry particles adhere to the bricks more firmly, increase the number of stuck dry particles to avoid excessive suction when passing through the absorber, and improve the quality and stability of the dry particle distribution.

[0008] Preferably, the heating device comprises a plurality of lighting lamps, the lighting lamps are irradiated downward, and the lighting lamps can generate heat through lighting to heat the bricks.

[0009] Preferably, a suction inlet is provided on the lower side of the suction device, and two suction cones are provided on the upper side of the suction device. The cross-sectional area of ​​the lower side of the suction cone is larger than the cross-sectional area of ​​the upper side. The lower sides of the two suction cones are connected to the suction inlet, and the two suction cones are arranged along the width direction of the brick conveying device. A suction outlet is provided on the upper side of the suction cone, and the suction outlet is connected to the recovery bucket through a suction pipe.

[0010] The suction device has two suction cones and two suction inlets, which can improve the uniformity of the suction force in the suction device and make the dry particles on the bricks more evenly distributed.

[0011] Preferably, the material suction recovery device further comprises a material suction lifting unit, which is transmission-connected to the material suction device, and the material suction lifting unit can drive the material suction device to move up and down relative to the brick conveying device.

[0012] When the suction device is needed to work, the suction lifting unit drives the suction device downward to the brick conveying device to suck dry particles from the bricks; when the suction device is not needed to work, the suction lifting unit drives the suction device upward to move away from the brick conveying device, which is convenient for use under different conditions.

[0013] Preferably, the material suction lifting unit is a lifting cylinder, and the brick conveying device includes a conveying frame, and a vertically arranged adjusting screw is fixedly connected to the conveying frame, and a lower adjusting nut and an upper adjusting nut are threadedly connected to the adjusting screw. An adjusting piece is also sleeved on the adjusting screw, and the adjusting piece is arranged between the lower adjusting nut and the upper adjusting nut. The cylinder body of the lifting cylinder is fixed on the adjusting piece, and the suction device is connected to the piston rod of the lifting cylinder.

[0014] By turning the lower adjusting nut and the upper adjusting nut, the upper and lower positions of the adjusting parts can be adjusted and positioned, and the upper and lower heights of the lifting cylinder and the suction device can be adjusted, so as to facilitate the adjustment of the use height of the suction device.

[0015] Preferably, the first feeding assembly includes a first feeding device, a vibrating screen device, a second feeding device, a loading hopper, and a third feeding device arranged in sequence along the conveying direction. The feeding hopper and the recycling hopper are arranged above the input side of the first feeding device. The vibrating screen device is arranged below the output side of the first feeding device. The input side of the second feeding device is arranged below the vibrating screen device. The output side of the second feeding device is arranged above the loading hopper. The input side of the third feeding device is arranged below the loading hopper. The output side of the third feeding device is arranged above the dry granule distributor. The output side of the third feeding device is connected to the dry granule distributor through a feeding pipe.

[0016] Preferably, a feeding outlet is arranged below the feeding hopper, a recycled material outlet is arranged below the recycling hopper, and a loading outlet is arranged below the loading hopper. The feeding outlet, the recycled material outlet, and / or the loading outlet are / is provided with pneumatic butterfly valves. The feeding outlet, the recycled material outlet, and / or the loading outlet can be opened or closed through the corresponding pneumatic butterfly valves, which can extend the service life.

[0017] Preferably, the first feeding device includes a first feeding frame. A first driving conveyor wheel and a first driven conveyor wheel are rotatably connected to the first feeding frame. A first conveyor belt is wound around the first driving conveyor wheel and the first driven conveyor wheel. A first dust-proof cover is fixedly connected to the first feeding frame. The first dust-proof cover covers the upper side of the first conveyor belt. The first dust-proof cover is arranged in a staggered manner with the feeding hopper and the recycling hopper. The second feeding device includes a second feeding frame. A second driving conveyor wheel and a second driven conveyor wheel are rotatably connected to the second feeding frame. A second conveyor belt is wound around the second driving conveyor wheel and the second driven conveyor wheel. A second dust-proof cover is fixedly connected to the second feeding frame. The second dust-proof cover covers the upper side of the second conveyor belt. The second dust-proof cover is arranged in a staggered manner with the vibrating screen device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a front view structural schematic diagram of the dry granule distribution system of the present invention;

[0020] Figure 2It is a top view structural schematic diagram of the dry particle feeding system of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of the heating device of the present utility model;

[0022] Figure 4 It is a structural schematic diagram of the suction device of the present utility model;

[0023] Figure 5 It is a front view structural schematic diagram of the feeding hopper and the first feeding component of the present utility model.

[0024] In the attached drawings: 1 - feeding hopper, 11 - feeding outlet, 21 - first feeding device, 211 - first feeding rack, 212 - first dust-proof cover, 22 - vibrating screen device, 23 - second feeding device, 231 - second feeding rack, 232 - second dust-proof cover, 24 - loading hopper, 241 - loading outlet, 25 - third feeding device, 251 - feeding pipe, 26 - pneumatic butterfly valve, 3 - dry particle feeder, 4 - brick blank conveying device, 41 - conveying rack, 411 - brick blank conveyor belt, 51 - suction device, 512 - suction cone, 513 - suction outlet, 514 - suction pipe, 52 - recovery hopper, 521 - recovery material outlet, 53 - suction lifting unit, 54 - adjusting screw, 541 - lower adjusting nut, 542 - upper adjusting nut, 543 - adjusting part, 6 - heating device, 61 - lighting lamp, 7 - brick blank.

[0025] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the attached drawings. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the attached 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 skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

[0027] It should be noted that if there are directional indications involved in the embodiments of the present utility model, such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] As Figures 1 to 5 shown, a dry particle cloth feeding system includes a feeding hopper 1, a first feeding assembly, a dry particle cloth feeder 3, a brick blank conveying device 4, and a material suction and recovery device. The feeding hopper 1 is arranged on the upper side of the first feeding assembly. The feeding hopper 1 can add dry particles to the first feeding assembly. The first feeding assembly is arranged between the feeding hopper 1 and the dry particle cloth feeder 3. The first feeding assembly can convey the dry particles to the dry particle cloth feeder 3. The brick blank conveying device 4 is arranged on the lower side of the dry particle cloth feeder 3. The brick blank conveyor belt 411 includes a conveying rack 41 and a brick blank conveyor belt 411. The brick blank 7 is conveyed on the brick blank conveyor belt 411. The dry particle cloth feeder 3 can cloth the dry particles on the brick blank 7 on the brick blank conveying device 4. The dry particle cloth feeder 3 can adopt the existing dry particle cloth feeder 3.

[0030] The material suction and recovery device includes a suction device 51 and a recovery hopper 52. The suction device 51 is arranged on the upper side of the brick blank conveying device 4. The brick blank conveying device 4 can convey the brick blank 7 from the side close to the dry particle cloth feeder 3 to the side of the suction device 51. The suction device 51 can generate negative pressure to suck the dry particles not adhered to the brick blank 7 on the brick blank conveying device 4 and collect them into the recovery hopper 52. The recovery hopper 52 is arranged on the upper side of the first feeding assembly. The recovery hopper 52 can add the sucked dry particles to the first feeding assembly.

[0031] The feeding hopper 1 can store and add dry particles. Dry particles can be added to the dry particle cloth feeding system through the feeding hopper 1. The dry particles are conveyed to the dry particle cloth feeder 3 along with the first feeding assembly. The brick blank 7 is conveyed on the brick blank conveying device 4. When the brick blank 7 is conveyed to the lower side of the dry particle cloth feeder 3, the dry particle cloth feeder 3 clothes the dry particles on the brick blank 7. When the brick blank 7 is conveyed to the lower side of the suction device 51, the suction device 51 sucks the dry particles not adhered to the brick blank 7 into the recovery hopper 52. The dry particles in the recovery hopper 52 are added to the first feeding assembly again for conveying and reuse in cloth feeding. The sucked dry particles in the present dry particle cloth feeding system can be automatically recovered to the first feeding assembly for reuse, so that it is not necessary to collect them into a collection bag and then process them manually, which can reduce the workload of manual labor.

[0032] In some specific embodiments, the dry granule feeding system further includes a heating device 6, which is disposed above the brick blank conveying device 4, between the dry granule feeder 3 and the suction device 51, and the heating device 6 can heat the brick blank 7 with dry granules already fed.

[0033] In the prior art, the distance between the dry granule feeder and the suction device is too small, and currently, the drying and curing of the glue in this distance rely on the ambient temperature, which easily leads to incomplete adhesion of the glue to the dry granules, that is, the dry granules are not completely adhered to the glue, resulting in excessive recovery of the unadhered dry granules by the suction device, especially when the amount of dry granule application is relatively large.

[0034] This solution sets the heating device 6 between the dry granule feeder 3 and the suction device 51 to heat the brick blank 7, increasing the distance between the dry granule feeder 3 and the suction device 51 and raising the temperature, which can accelerate the curing of the glue and dry granules on the brick blank 7, make the dry granules adhere more firmly to the brick blank 7, increase the number of adhered dry granules, so as to avoid excessive suction when passing through the suction device 51, and improve the quality and stability of dry granule feeding.

[0035] The heating device 6 can adopt forms such as a drying tunnel, hot air or light. Preferably, referring to Figure 3 , the heating device 6 includes a plurality of lighting lamps 61, the irradiation direction of the lighting lamps 61 is downward, and the lighting lamps 61 can heat by lighting to heat the brick blank 7. The structure is simple, and heating by lighting does not affect the position of the dry granules. If hot air heating is used, the dry granules on the brick blank 7 may be blown out of position.

[0036] In some specific embodiments, referring to Figure 4 , a suction inlet is provided below the suction device 51, two suction cones 512 are provided above the suction device 51, the cross-sectional area of the lower side of the suction cone 512 is larger than that of the upper side, the lower sides of the two suction cones 512 are communicated with the suction inlet, the two suction cones 512 are arranged along the width direction of the brick blank conveying device 4, and a suction outlet 513 is provided above the suction cone 512. The suction outlet 513 is connected to the recovery hopper 52 through a suction pipe 514.

[0037] In the prior art, the suction device in the current industry generally uses one suction cone. The suction uniformity in this kind of suction device is poor, and the position where negative pressure is generated is basically close to the middle in the width direction. The negative pressure in the area close to the middle is stronger while the negative pressure in the two side areas is weaker, which easily leads to uneven amounts of dry granules being sucked away, especially when the adhesion between the dry granules and the glue is not firm.

[0038] The suction device 51 in this solution has two suction cones 512 and two suction inlets, increasing the positions where negative pressure is generated, making the negative pressure at the suction inlets more dispersed and uniform, which can improve the suction uniformity in the suction device 51 and make the distribution of dry granules on the brick blank 7 more uniform.

[0039] Further, the material suction and recycling device further includes a material suction lifting unit 53. The material suction lifting unit 53 is drivingly connected to the material suction device 51, and the material suction lifting unit 53 can drive the material suction device 51 to move up and down relative to the brick blank conveying device 4.

[0040] When the material suction device 51 needs to work, the material suction lifting unit 53 drives the material suction device 51 to move downward close to the brick blank conveying device 4 to approach the brick blank 7 and suck and dry the particles; when the material suction device 51 does not need to work, the material suction lifting unit 53 drives the material suction device 51 to move upward away from the brick blank conveying device 4, which is convenient for use under different condition requirements.

[0041] Further, the material suction lifting unit 53 is a lifting cylinder. The brick blank conveying device 4 includes a conveying machine frame 41. A vertically arranged adjusting screw 54 is fixedly connected to the conveying machine frame 41. A lower adjusting nut 541 and an upper adjusting nut 542 are threadedly connected to the adjusting screw 54. An adjusting member 543 is also sleeved on the adjusting screw 54. The adjusting member 543 is arranged between the lower adjusting nut 541 and the upper adjusting nut 542. The cylinder body of the lifting cylinder is fixed to the adjusting member 543, and the material suction device 51 is connected to the piston rod of the lifting cylinder.

[0042] The material suction lifting unit 53 adopts a lifting cylinder, and the structure is relatively simple. By rotating the lower adjusting nut 541 and the upper adjusting nut 542, the up and down positions of the adjusting member 543 can be adjusted and positioned, that is, the up and down heights of the lifting cylinder and the material suction device 51 can be adjusted, which is convenient for adjusting the use height of the material suction device 51.

[0043] In some specific embodiments, referring to Figure 1 and Figure 5 , the first feeding assembly includes a first feeding device 21, a vibrating screen device 22, a second feeding device 23, a loading hopper 24, and a third feeding device 25 arranged in sequence along the conveying direction. The feeding hopper 1 and the recycling hopper 52 are arranged on the upper side of the input side of the first feeding device 21. The vibrating screen device 22 is arranged on the lower side of the output side of the first feeding device 21. The input side of the second feeding device 23 is arranged on the lower side of the vibrating screen device 22. The output side of the second feeding device 23 is arranged on the upper side of the loading hopper 24. The input side of the third feeding device 25 is arranged on the lower side of the loading hopper 24. The output side of the third feeding device 25 is arranged on the upper side of the dry particle distributor 3. The output side of the third feeding device 25 is connected to the dry particle distributor 3 through a feeding pipe 251.

[0044] The dry particles are sequentially sent to the dry particle distributor 3 through the first feeding device 21, the vibrating screen device 22, the second feeding device 23, the loading hopper 24, and the third feeding device 25. The dry particles can be screened for the required size through the vibrating screen device 22. The first feeding device 21, the second feeding device 23, and the third feeding device 25 are all arranged to be upwardly inclined, and the spatial arrangement is more reasonable.

[0045] In some specific embodiments, a feeding outlet 11 is provided on the lower side of the feeding hopper 1, a recycled material outlet 521 is provided on the lower side of the recycling hopper 52, and a loading outlet 241 is provided on the lower side of the loading hopper 24. A pneumatic butterfly valve 26 is provided at the feeding outlet 11, the recycled material outlet 521, and / or the loading outlet 241.

[0046] In the prior art, a pneumatic pinch valve is used at the dry granule discharging port. Currently, most of the pinch tubes are made of materials such as flexible hoses and rubber hoses. When feeding is required, the dry granules slide down by squeezing the pinch tube to form feeding control. After high-frequency feeding, the flexible hoses and rubber hoses are prone to deformation, affecting the feeding stability.

[0047] In this solution, the feeding outlet 11, the recycled material outlet 521, and / or the loading outlet 241 can be opened or closed through the corresponding pneumatic butterfly valve 26 to control the dry granule feeding. The feeding outlet 11, the recycled material outlet 521, and / or the loading outlet 241 are set as stainless steel pipes, which can extend the service life.

[0048] In some specific embodiments, the first feeding device 21 includes a first feeding frame 211. A first driving transmission wheel and a first driven transmission wheel are rotatably connected to the first feeding frame 211. The first driving transmission wheel is driven by a motor. A first conveyor belt is wound around the first driving transmission wheel and the first driven transmission wheel. A first dust-proof cover 212 is fixedly connected to the first feeding frame 211. The first dust-proof cover 212 covers the upper side of the first conveyor belt. The first dust-proof cover 212 is arranged in a staggered manner with the feeding hopper 1 and the recycling hopper 52.

[0049] The second feeding device 23 includes a second feeding frame 231. A second driving transmission wheel and a second driven transmission wheel are rotatably connected to the second feeding frame 231. The second driving transmission wheel is driven by a motor. A second conveyor belt is wound around the second driving transmission wheel and the second driven transmission wheel. A second dust-proof cover 232 is fixedly connected to the second feeding frame 231. The second dust-proof cover 232 covers the upper side of the second conveyor belt. The second dust-proof cover 232 is arranged in a staggered manner with the vibrating screen device 22.

[0050] The first dust-proof cover 212 covers the first conveyor belt, and the second dust-proof cover 232 covers the second conveyor belt, which can reduce the dust generated by the dry granules during the conveying process from floating to the outside and improve the cleanliness of the production environment.

[0051] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A dry particle distribution system, characterized in that: The invention comprises a feeding hopper (1), a first feeding assembly, a dry particle distributor (3), a brick conveying device (4) and a suction recovery device, wherein the feeding hopper (1) is arranged on the upper side of the first feeding assembly, the feeding hopper (1) can add dry particles to the first feeding assembly, the first feeding assembly is arranged between the feeding hopper (1) and the dry particle distributor (3), the first feeding assembly can transport dry particles to the dry particle distributor (3), the brick conveying device (4) is arranged on the lower side of the dry particle distributor (3), the dry particle distributor (3) can distribute dry particles on the bricks (7) on the brick conveying device (4), The suction and recovery device comprises a suction device (51) and a recovery bucket (52). The suction device (51) is arranged on the upper side of the brick conveying device (4). The brick conveying device (4) can convey the bricks (7) from the side close to the dry particle distributor (3) to the side of the suction device (51). The suction device (51) can suck the dry particles on the bricks (7) on the brick conveying device (4) that are not adhered by glue and collect them into the recovery bucket (52). The recovery bucket (52) is arranged on the upper side of the first feeding component. The recovery bucket (52) can add the sucked dry particles to the first feeding component.

2. The dry particle distribution system according to claim 1, characterized in that: The dry granular material distribution system further comprises a heating device (6), wherein the heating device (6) is arranged on the upper side of the brick blank conveying device (4), and the heating device (6) is arranged between the dry granular material distribution machine (3) and the material suction device (51), and the heating device (6) is capable of heating the distributed brick blanks (7).

3. The dry particle distribution system according to claim 2, characterized in that: The heating device (6) comprises a plurality of lighting lamps (61), the lighting lamps (61) are irradiated downward, and the lighting lamps (61) can generate heat through lighting to heat the bricks (7).

4. The dry particle distribution system according to claim 1, characterized in that: A suction inlet is provided at the lower side of the suction device (51), and two suction cones (512) are provided at the upper side of the suction device (51). The cross-sectional area of ​​the lower side of the suction cone (512) is larger than the cross-sectional area of ​​the upper side. The lower sides of the two suction cones (512) are connected to the suction inlet. The two suction cones (512) are arranged along the width direction of the brick conveying device (4). A suction outlet (513) is provided at the upper side of the suction cone (512), and the suction outlet (513) is connected to the recovery bucket (52) through a suction pipe (514).

5. The dry particle distribution system according to claim 1, characterized in that: The material suction recovery device further comprises a material suction lifting unit (53), the material suction lifting unit (53) being in transmission connection with the material suction device (51), and the material suction lifting unit (53) being capable of driving the material suction device (51) to move up and down relative to the brick conveying device (4).

6. The dry particle distribution system according to claim 5, characterized in that: The material suction lifting unit (53) is a lifting cylinder. The brick blank conveying device (4) comprises a conveying frame (41). A vertically arranged adjusting screw (54) is fixedly connected to the conveying frame (41). A lower adjusting nut (541) and an upper adjusting nut (542) are threadedly connected to the adjusting screw (54). An adjusting piece (543) is also sleeved on the adjusting screw (54). The adjusting piece (543) is arranged between the lower adjusting nut (541) and the upper adjusting nut (542). The cylinder body of the lifting cylinder is fixed on the adjusting piece (543). The suction device (51) is connected to the piston rod of the lifting cylinder.

7. The dry particle distribution system according to claim 1, characterized in that: The first feeding assembly comprises a first feeding device (21), a vibrating screen device (22), a second feeding device (23), a charging hopper (24) and a third feeding device (25) which are sequentially arranged along the conveying direction; the charging hopper (1) and the recovery hopper (52) are arranged on the upper side of the input side of the first feeding device (21); the vibrating screen device (22) is arranged on the lower side of the output side of the first feeding device (21); the input side of the second feeding device (23) is arranged on the lower side of the vibrating screen device (22); the output side of the second feeding device (23) is arranged on the upper side of the charging hopper (24); the input side of the third feeding device (25) is arranged on the lower side of the charging hopper (24); the output side of the third feeding device (25) is arranged on the upper side of the dry granule distributor (3); and the output side of the third feeding device (25) is connected to the dry granule distributor (3) through a feeding pipe (251).

8. The dry particle distribution system according to claim 7, characterized in that: The lower side of the feeding hopper (1) is provided with a feeding outlet (11), the lower side of the recovery hopper (52) is provided with a recycling outlet (521), and the lower side of the charging hopper (24) is provided with a charging outlet (241). The feeding outlet (11), the recycling outlet (521) and / or the charging outlet (241) are provided with a pneumatic butterfly valve (26).

9. The dry particle distribution system according to claim 7, characterized in that: The first feeding device (21) comprises a first feeding frame (211), a first driving transmission wheel and a first driven transmission wheel are rotatably connected to the first feeding frame (211), a first conveyor belt is wound around the first driving transmission wheel and the first driven transmission wheel, a first dust cover (212) is fixedly connected to the first feeding frame (211), the first dust cover (212) is arranged on the upper side of the first conveyor belt, and the first dust cover (212) is staggered with the feeding hopper (1) and the recovery hopper (52); The second feeding device (23) comprises a second feeding frame (231), the second feeding frame (231) is rotatably connected to a second active transmission wheel and a second driven transmission wheel, a second conveyor belt is wound around the second active transmission wheel and the second driven transmission wheel, a second dust cover (232) is fixedly connected to the second feeding frame (231), the second dust cover (232) is arranged on the upper side of the second conveyor belt, and the second dust cover (232) is staggered with the vibration screen device (22).

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