Multi-channel material transmission mechanism and multi-grade coal intelligent dry separator applying the same

Abstract

The present invention relates to the technical field of material conveying mechanisms, and discloses a multi-channel material conveying mechanism and a multi-grade coal intelligent dry separator using the same, which includes a conveyor belt and a vibrating feeder installed on a frame. A vibrating partition plate is provided on the vibrating feeder; a conveying partition plate is installed on the frame through a vibrating elastic member, and there is a vibrating spacing between the conveying partition plate and the conveyor belt. The vibrating feeder intermittently contacts the conveying partition plate, and the conveying partition plate can vibrate horizontally relative to the conveyor belt. In the present invention, the proposed multi-channel material conveying mechanism and the multi-grade coal intelligent dry separator using the same can realize the synchronous conveying of materials of different specifications, and the conveying partition plate is connected to the frame through a vibrating elastic member, and the vibrating feeder intermittently impacts the conveying partition plate to realize the vibration of the conveying partition plate relative to the materials, so as to avoid the adhesion of materials to the conveying partition plate.

Description

Technical Field

[0001] The present invention relates to the technical field of material transmission, and particularly to a multi-channel material transmission mechanism and a multi-grade coal intelligent dry separator applying the same. Background Art

[0002] At present, the coal gangue separation technology has become increasingly mature. In order to meet the requirements of intelligent and green development of coal separation, the separation by optical intelligent dry separators has gradually become the mainstream of coal gangue separation. The application of coal gangue intelligent dry separators has greatly improved the efficiency of coal gangue separation, saved the production cost of coal, reduced the pollution generated during production, has a simple process system, low investment, and obvious advantages in coal gangue separation. In the existing coal separation, the material is first fed onto a belt conveyor mechanism by a vibrating feeder. During the horizontal transmission of the material by the belt conveyor mechanism, image acquisition is performed on the material laid flat on the conveyor belt, and the material is identified through an identification algorithm. Then, during the free fall of the material, the free fall path of the coal gangue is changed by blowing air through air nozzles at the bottom of the coal gangue to achieve the separation of coal and coal gangue.

[0003] At present, the coal intelligent dry separators on the market are divided into small-grade coal intelligent dry separators or large-grade coal intelligent dry separators, and it is difficult to meet the requirement of simultaneously separating raw coal of different grades through a single coal intelligent dry separator. However, arranging multiple coal intelligent dry separators to separate raw coal of different grades will greatly increase the investment cost, the on-site equipment layout space is insufficient, the supporting equipment increases, the failure and maintenance rate increases, and the energy consumption is large.

[0004] After retrieval, a Chinese patent with the authorization announcement number of CN110860869B and the name of "an automatic transmission device of a machining equipment" discloses a transmission device that sets a partition plate to divide the conveyor belt into at least two channels. The disadvantage of this patent is that the partition plate is arranged on the frame, and the coal feeding mechanism is often vibrating feeding. The material is scattered by a vibrating feeder to avoid adhesion of massive materials. The discharge port of the vibrating feeder may impact the partition plate, resulting in deformation of the partition plate. Summary of the Invention

[0005] To solve the technical problems in the background art, the present invention proposes a multi-channel material transmission mechanism and a multi-grade coal intelligent dry separator applying the same.

[0006] The multi-channel material transmission mechanism proposed by the present invention includes a conveyor belt and a vibrating feeder installed on a frame. The material discharged from the discharge port of the vibrating feeder is conveyed onto the conveyor belt. Different from the prior art, a vibrating partition plate is provided on the vibrating feeder, and the vibrating partition plate divides the vibrating feeder into a first vibrating feeding channel and a second vibrating feeding channel;

[0007] A transmission partition plate is installed on the frame through a vibration elastic member. There is a vibration gap between the transmission partition plate and the transmission belt. The vibrating feeder intermittently contacts the transmission partition plate, and the transmission partition plate can vibrate horizontally relative to the transmission belt.

[0008] The transmission partition plate divides the transmission belt into a first transmission channel and a second transmission channel. The materials on the first vibrating feeding channel fall into the first transmission channel, and the materials in the second vibrating feeding channel fall into the second transmission channel.

[0009] As a further optimized solution of the present invention, it further includes a partition cover installed on the frame. The partition cover covers the outside of the transmission belt, and the transmission partition plate is installed on the partition cover through the vibration elastic member. Specifically, the vibration elastic member is made of rubber material.

[0010] As a further optimized solution of the present invention, a guide chute is provided on the partition cover. The discharge end of the guide chute is located above the transmission belt. A reciprocating partition member is slidably installed horizontally on the guide chute. The reciprocating partition member intermittently contacts the vibrating feeder. After the vibrating feeder impacts the reciprocating partition member, the reciprocating partition member can reciprocate along the conveying direction of the transmission belt. During this process, the reciprocating partition member intermittently impacts the transmission partition plate.

[0011] As a further optimized solution of the present invention, a T-shaped chute is opened on the guide chute. The upper part of the reciprocating partition member has a T-shaped slide bar. The T-shaped slide bar is slidably installed in the T-shaped chute, and reciprocating elastic members are provided on both sides of the T-shaped slide bar and the side surface of the T-shaped chute. The reciprocating elastic member can be a spring. When not under force, the two groups of reciprocating elastic members are in their original lengths, and the reciprocating partition member has a part extending out of the guide chute. Therefore, even after the vibrating feeding member stops feeding, the transmission partition plate can still vibrate horizontally relative to the transmission belt.

[0012] As a further optimized solution of the present invention, a baffle leather curtain for dialing materials is provided inside the partition cover. The baffle leather curtain includes an installation part installed on the top of the partition cover and a plurality of baffle strips installed on the installation part. There are multiple groups of the baffle strips, and the multiple groups of baffle strips are distributed along the width direction of the transmission belt. A deformation interval is formed between any two adjacent groups of baffle strips. The baffle strips are made of rubber material. The baffle strips are used to separate the adhered materials and at the same time dial the materials with a small-area side surface in contact with the transmission belt so that the large-area side surface of the materials is in contact with the transmission belt.

[0013] As a further optimized solution of the present invention, at least one of the baffle strips in the baffle leather curtain contacts the transmission partition plate.

[0014] As a further optimized solution of the present invention, a secondary material deflecting member is provided on the side of the lower half of the baffle strip away from the material inlet. The weight of the secondary material deflecting member is greater than the weight of one baffle strip, which deflects the material a second time to further prevent the small-area side of the material from contacting the conveyor belt. Preferably, the secondary material deflecting member is installed on the installation part through a flexible rope.

[0015] Preferably, the secondary material deflecting member is spherical.

[0016] As an alternative solution of the present invention, an installation hole is opened at the top of the partition cover. The vibration elastic member includes an elastic column and an installation strip. The bottom of the elastic column is connected to the transmission partition plate, and the top of the elastic column is fixedly connected to the installation strip. There are multiple groups of elastic columns, and the multiple groups of elastic columns are distributed along the length direction of the transmission partition plate. A deformation interval is formed between any two adjacent groups of elastic columns, and the installation strip is installed on the top of the partition cover.

[0017] As a further optimized solution of the present invention, a connection through hole is opened on the elastic column. The elastic column is installed on the transmission partition plate through a first fixing member. The upper end of the elastic column has an extension portion extending radially outward, and the extension portion is installed on the installation strip through a second fixing member. The first fixing member and the second fixing member can be structures such as screws or fixing pins in the prior art, so that the first fixing member and the second fixing member between the elastic column and the transmission partition plate and the installation strip are hardened parts, further increasing the service life of the elastic column and ensuring the stability of the connection between the elastic column and the partition plate and the installation strip.

[0018] As another alternative solution of the present invention, the vibration elastic member is a T-shaped elastic strip. The elastic strip passes through the installation hole and the bottom of the elastic strip is connected to the transmission partition plate. The upper part of the elastic strip is located outside the partition cover and is detachably connected to the partition cover.

[0019] Preferably, a receiving groove is opened on the transmission partition plate, and the elastic strip is installed in the receiving groove.

[0020] A multi-grade coal intelligent dry separator applying a multi-channel material transmission mechanism includes the above multi-channel material transmission mechanism. A multi-band image acquisition system and a rejection mechanism are further provided on the frame. The multi-band image acquisition system is used to collect information of materials on the first transmission channel and the second transmission channel, and the rejection mechanism is used to reject unqualified materials discharged from the first transmission channel and the second transmission channel during free fall. The rejection mechanism can include structures such as an air valve combined with a jet pipe in the prior art.

[0021] As a further optimized solution of the present invention, the rejection mechanism includes an air storage chamber. The air injection pipe is communicated with the air storage chamber and is used to inject gas into the air storage chamber. A spray valve is provided on the air storage chamber. The gas in the air storage chamber is ejected from the air storage chamber through the spray valve and acts on the material to realize the rejection of the material.

[0022] Specifically, in the actual use process, the material in the first vibrating feeding channel is less than the material in the second vibrating feeding channel, which is convenient for transporting materials of different sizes. As a further optimized solution of the present invention, the spray valve includes a first spray valve and a second spray valve, and the aperture of the air outlet hole of the first spray valve is smaller than the aperture of the air outlet hole of the second spray valve.

[0023] In the present invention, the proposed multi-channel material transmission mechanism and the multi-grade coal intelligent dry separator using the same can realize the synchronous transmission of materials of different specifications; the service life of the partition plate is increased by using an unfixed partition plate; and the transmission partition plate is connected to the frame through a vibration elastic member, and the vibration feeder intermittently impacts the transmission partition plate to realize the vibration of the transmission partition plate relative to the material, so as to avoid the material sticking to the transmission partition plate.

[0024] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the present invention;

[0026] Figure 2 It is a schematic structural diagram of the transmission belt after removing the partition cover of the present invention;

[0027] Figure 3 It is a partially enlarged view of the guide cylinder part of the present invention;

[0028] Figure 4 It is a sectional view of the guide cylinder of the present invention;

[0029] Figure 5 It is a sectional view of the partition cover of the present invention;

[0030] Figure 6 It is a schematic structural diagram of the inner baffle leather curtain of the partition cover of the present invention;

[0031] Figure 7 It is a schematic structural diagram of the vibration elastic member in some embodiments.

[0032] In the figure: 1. conveyor belt; 10. first transfer channel; 11. second transfer channel; 2. vibrating feeder; 20. first vibrating feeding channel; 21. second vibrating feeding channel; 3. vibrating partition plate; 4. transfer partition plate; 5. partition cover; 50. mounting hole; 6. material blocking curtain; 60. mounting part; 61. retaining bar; 7. secondary feeding member; 8. flexible rope; 9. guide cylinder; 90. T-shaped sliding groove; 12. reciprocating partition member; 13. reciprocating elastic member; 14. elastic column; 15. mounting bar; 16. elastic strip; 17. rejection mechanism; 18. multi-band image acquisition system; 19. monitoring camera. Specific embodiments

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0034] As Figures 1-7 shown in the multi-grade coal intelligent dry separation machine, which includes a multi-channel material transfer mechanism. The multi-channel material transfer mechanism includes a conveyor belt 1 and a vibrating feeder 2 installed on a frame. The conveyor belt 1 is installed on pulleys, and the pulleys are installed on the frame. The rotation of the pulleys drives the horizontal transfer of the conveyor belt 1. The materials discharged from the discharge port of the vibrating feeder 2 are conveyed onto the conveyor belt 1. A vibrating partition plate 3 is provided on the vibrating feeder 2. The vibrating partition plate 3 is fixed on the vibrating feeding bottom plate of the vibrating feeder 2. The vibrating partition plate 3 divides the vibrating feeder 2 into a first vibrating feeding channel 20 and a second vibrating feeding channel 21. The materials in the first vibrating feeding channel 20 and the materials in the second vibrating feeding channel 21 are of different sizes, thereby realizing the transfer of different types of materials at the same time;

[0035] A transfer partition plate 4 is installed on the frame through vibrating elastic members. There is a vibrating spacing between the transfer partition plate 4 and the conveyor belt 1, and the size of the transfer spacing is smaller than the size of the smallest material on the conveyor belt 1. The vibrating feeder 2 intermittently contacts the transfer partition plate 4, and the transfer partition plate 4 can vibrate horizontally relative to the conveyor belt 1;

[0036] The transfer partition plate 4 divides the conveyor belt 1 into a first transfer channel 10 and a second transfer channel 11. The materials on the first vibrating feeding channel fall into the first transfer channel 10, and the materials in the second vibrating feeding channel 21 fall into the second transfer channel 11.

[0037] By setting the vibration elastic member, when the vibrating feeder 2 intermittently contacts the transmission partition plate 4 during the vibrating feeding process, the transmission partition plate 4 is vibrated horizontally relative to the conveyor belt 1, reducing the wear of the transmission partition plate 4 and avoiding the adhesion of materials to the transmission partition plate 4, further facilitating the transmission of materials.

[0038] During the working process: After passing through the existing screening machine, materials of different specifications are conveyed to the vibrating feeder 2 through the existing conveyor belt. The vibrating feeder 2 vibrates and feeds the materials onto the conveyor belt 1, and the vibrating feeder 2 further spreads the materials flat on the conveyor belt 1. The materials on the first vibrating feeding channel 20 enter the first transmission channel 10, and the materials in the second vibrating feeding channel 21 are conveyed to the second transmission channel 11. The conveyor belt 1 horizontally conveys the materials. During the conveying process, since the transmission partition plate 4 can vibrate horizontally relative to the conveyor belt 1, it is ensured that the materials in the first vibrating feeding channel 20 enter the first transmission channel 10 and the materials in the second vibrating feeding channel 21 enter the second transmission channel 11, and a large impact of the vibrating feeder 2 on the transmission partition plate 4 is avoided to increase the service life of the transmission partition plate 4; at the same time, the transmission partition plate 4 vibrates horizontally relative to the conveyor belt 1 during the material transmission process, so that the materials do not adhere to the transmission partition plate.

[0039] Preferably, in order to prevent materials from falling, a partition cover 5 installed on the frame is further included. The partition cover 5 covers the outside of the conveyor belt 1. The transmission partition plate 4 is installed on the partition cover 5 through a vibration elastic member, and the transmission partition plate 4 is located inside the partition cover 5. Specifically, the vibration elastic member is made of rubber material.

[0040] Preferably, a material blocking curtain 6 for dialing materials is provided inside the partition cover 5. The material blocking curtain 6 includes an installation part 60 installed at the top of the partition cover 5 and a plurality of blocking bars 61 installed on the installation part 60. There are multiple groups of the blocking bars 61, and the multiple groups of blocking bars 61 are distributed along the width direction of the conveyor belt 1, and a deformation interval is formed between any two adjacent groups of blocking bars 61. The blocking bars 61 are made of rubber material. The blocking bars 61 are used to separate the adhered materials, and at the same time, the materials with a small-area side in contact with the conveyor belt 1 are dialed so that the large-area side of the materials is in contact with the conveyor belt 1. The material blocking curtain 6 is provided in both the first transmission channel 10 and the second transmission channel 11. If the materials in the first transmission channel 10 are larger than the materials in the second transmission channel 11, the length of the blocking bars 61 in the first transmission channel 10 is less than the length of the blocking bars 61 in the second transmission channel 11.

[0041] As a further optimized solution of the present invention, at least one blocking bar 61 in each group of the material blocking curtain 6 contacts the transmission partition plate 4, which further increases the effect of dialing the materials if the small-area side of the materials is in contact with the conveyor belt 1.

[0042] As a further optimized solution of the present invention, a secondary material deflecting member 7 is provided on the side of the lower half of the baffle strip 61 away from the material inlet. The weight of the secondary material deflecting member 7 is greater than the weight of one baffle strip 61, which deflects the material a second time to further prevent the side of the material in a small area from contacting the conveyor belt 1. Preferably, the secondary material deflecting member 7 is installed on the mounting portion 60 through a flexible rope 8; and the width of the secondary material deflecting member 7 is smaller than the width of the baffle strip 61. If the material in the first conveying channel 10 is heavier than the material in the second conveying channel 11, the secondary material deflecting member 7 in the first conveying channel 10 is heavier than the secondary material deflecting member 7 in the second conveying channel 11, and an impact interval is formed between the retaining strip and the secondary material deflecting member 7 without external force.

[0043] Preferably, the secondary material deflecting member 7 is spherical.

[0044] Preferably, a material guiding cylinder 9 is provided on the partition cover 5. The discharging end of the material guiding cylinder 9 is located above the conveyor belt 1. A reciprocating partition member 12 is slidably installed horizontally on the material guiding cylinder 9. The reciprocating partition member 12 intermittently contacts the vibrating feeder 2. Specifically, the surface of the reciprocating partition member 12 facing the vibrating feeder 2 is an inclined surface that gradually slopes upward from the side close to the vibrating feeder 2 to the side away from the vibrating feeder 2. This inclined surface intermittently contacts the bottom plate of the vibrating feeder 2, reducing the amplitude of the horizontal vibration of the transmission partition plate 4. After the vibrating feeder 2 impacts the reciprocating partition member 12, the reciprocating partition member 12 can reciprocate along the conveying direction of the conveyor belt 1. During this process, the reciprocating partition member 12 intermittently impacts the transmission partition plate 4.

[0045] Preferably, a T-shaped sliding groove 90 is formed on the material guiding cylinder 9. The upper part of the reciprocating partition member 12 has a T-shaped sliding strip, and the T-shaped sliding strip is slidably installed in the T-shaped sliding groove 90. Reciprocating elastic members 13 are provided on both sides of the T-shaped sliding strip and the side surfaces of the T-shaped sliding groove 90. The reciprocating elastic members 13 can be springs. When not under force, the two groups of reciprocating elastic members 13 are in their original lengths, and the reciprocating partition member 12 has a part extending out of the material guiding cylinder 9. Thus, even after the vibrating feeding member stops feeding, the transmission partition plate 4 can still vibrate horizontally relative to the conveyor belt 1.

[0046] As Figure 7 shown in some embodiments. Specifically, a mounting hole 50 is formed at the top of the partition cover 5. The vibration elastic member includes an elastic column 14 and a mounting strip 15. The bottom of the elastic column 14 is connected to the transmission partition plate 4, and the top of the elastic column 14 is fixedly connected to the mounting strip 15. There are multiple groups of elastic columns 14, and the multiple groups of elastic columns 14 are distributed along the length direction of the transmission partition plate 4. A deformation interval is formed between any two adjacent groups of elastic columns 14, and the mounting strip 15 is installed on the top of the partition cover 5.

[0047] Preferably, a connecting through-hole is formed in the elastic column 14. The elastic column 14 is installed on the transmission partition plate 4 through a first fixing member. The upper end of the elastic column 14 has an extension portion extending radially outward along it. The extension portion is installed on the installation strip 15 through a second fixing member. The first fixing member and the second fixing member can be structures such as screws or fixing pins in the prior art. Furthermore, the first fixing member and the second fixing member between the elastic column 14 and the transmission partition plate 4 and the installation strip 15 are made of a metal material, which further increases the service life of the elastic column 14 and ensures the stability of the connection between the elastic column 14 and the transmission partition plate 4 and the installation strip 15.

[0048] As Figure 5 shown, in some embodiments, specifically, an installation hole 50 is formed in the top of the partition cover 5. The vibration elastic member is a T-shaped elastic strip 16. The elastic strip 16 passes through the installation hole 50 and the bottom of the elastic strip 16 is connected to the transmission partition plate 4. The upper part of the elastic strip 16 is located outside the partition cover 5 and is detachably connected to the partition cover 5.

[0049] Preferably, a receiving groove is formed in the transmission partition plate 4. The elastic strip 16 is installed in the receiving groove. The elastic strip 16 is installed in the receiving groove through components such as fixing pins and bolts.

[0050] The multi-grade coal intelligent dry separator applying the multi-channel material transmission mechanism includes the above multi-channel material transmission mechanism. A multi-band image acquisition system 18 and a rejection mechanism 17 are further provided on the rack. The multi-band image acquisition system 18 is used to acquire information of materials on the first transmission channel 10 and the second transmission channel 11. The rejection mechanism 17 is used to reject unqualified materials discharged from the first transmission channel 10 and the second transmission channel 11 and in free fall. The rejection mechanism 17 can include structures such as an air valve combined with a jet pipe in the prior art;

[0051] The multi-band image acquisition system 18 includes an X-ray source and a dual-energy detector. The fan-shaped ray beam emitted by the X-ray source continuously scans the cross-section of coal gangue. The attenuated X-ray interacts with the scintillation tube of the dual-energy detector to convert the optical signal into an electrical signal. The dual-energy detector has a high-speed parallel dual-energy image acquisition system design, can segment and identify the overlapping and adhered massive materials on the belt, and can adapt to production situations such as large fluctuations in the feed rate and large external moisture and adhesion of raw coal.

[0052] Preferably, the rejection mechanism 17 includes an air storage cavity. The jet pipe is communicated with the air storage cavity and is used to blow gas into the air storage cavity. An air jet valve is provided on the air storage cavity. The gas in the air storage cavity is ejected from the air storage cavity through the air jet valve and acts on the material to realize the rejection of the material.

[0053] Specifically, during actual use, the amount of material in the first vibrating feeding channel 20 is less than that in the second vibrating feeding channel 21, which is convenient for transporting materials of different sizes. As a further optimized solution of the present invention, the spraying valve includes a first spraying valve and a second spraying valve, and the aperture of the air outlet hole of the first spraying valve is smaller than that of the second spraying valve, thus facilitating the implementation of different materials. In a game example, the material in the first vibrating feeding channel 20 is small granular material with a size of 13 - 50 mm, and the material in the second vibrating feeding channel 21 is large granular material with a size of 50 - 300 mm.

[0054] Preferably, a monitoring camera 19 is further provided on the partition cover 5. The monitoring camera 19 is located between the material blocking curtain 6 and the multi - band image acquisition system 18 and is used to take pictures of the materials on the conveyor belt 1, facilitating the staff to monitor the state of the materials in the partition cover 5. It has functions of flowing refresh and full - frame refresh, and accurately monitors the operating states of various parts of the host.

[0055] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying 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 of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0058] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Further, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature.

[0059] As described above, the above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. Multi-channel material conveying mechanism, including a conveyor belt and a vibrating feeder installed on a frame, and the material discharged from the discharge port of the vibrating feeder is conveyed onto the conveyor belt, characterized in that, A vibration baffle is provided on the vibration feeder. The vibration baffle divides the vibration feeder into a first vibration feeding channel and a second vibration feeding channel; A transmission baffle is installed on the frame through vibration elastic members. There is a vibration spacing between the transmission baffle and the conveyor belt. The transmission baffle can vibrate horizontally relative to the conveyor belt; The transmission baffle divides the conveyor belt into a first transmission channel and a second transmission channel. The materials on the first vibration feeding channel fall into the first transmission channel, and the materials in the second vibration feeding channel fall into the second transmission channel; It further includes a separation cover installed on the frame. The separation cover covers the outside of the conveyor belt. The transmission baffle is installed on the separation cover through the vibration elastic members; A guide chute is provided on the separation cover. The discharge end of the guide chute is located above the conveyor belt. A reciprocating separator is slidably installed horizontally on the guide chute. The reciprocating separator is intermittently in contact with the vibration feeder. After the vibration feeder impacts the reciprocating separator, the reciprocating separator can reciprocate along the conveying direction of the conveyor belt. During this process, the reciprocating separator intermittently impacts the transmission baffle.

2. The multi-channel material transmission mechanism according to claim 1, characterized in that A baffle curtain for material deflection is provided inside the separation cover. The baffle curtain includes a mounting portion installed at the top of the separation cover and a plurality of baffle strips installed on the mounting portion. There are multiple groups of the baffle strips. The multiple groups of baffle strips are distributed along the width direction of the conveyor belt, and a deformation interval is formed between any two adjacent groups of baffle strips.

3. The multi-channel material transmission mechanism according to claim 2, wherein, A secondary material deflection member is provided on the side of the lower half of the baffle strip away from the material inlet. The weight of the secondary material deflection member is greater than the weight of one baffle strip.

4. The multi-channel material transfer mechanism according to claim 3, wherein The secondary material deflection member is installed on the mounting portion through a flexible rope.

5. The multi-channel material transmission mechanism according to claim 3, characterized in that, The secondary material deflection member is spherical.

6. The multi-channel material transfer mechanism according to claim 1, characterized in that, The vibration elastic member includes elastic columns and mounting strips. The bottom of the elastic column is connected to the transmission baffle. The top of the elastic column is fixedly connected to the mounting strip. There are multiple groups of elastic columns, and the multiple groups of elastic columns are distributed along the length direction of the transmission baffle. A deformation interval is formed between any two adjacent groups of elastic columns. The mounting strip is installed on the top of the separation cover.

7. The multi-channel material transmission mechanism according to claim 1, wherein, An installation hole is opened at the top of the separation cover. The vibration elastic member is a T-shaped elastic strip. The elastic strip passes through the installation hole and the bottom of the elastic strip is connected to the transmission baffle. The upper part of the elastic strip is located outside the separation cover and is detachably connected to the separation cover.

8. A multi - granularity coal intelligent dry - separation machine applying a multi - channel material transmission mechanism, characterized in that, It includes a multi-channel material transmission mechanism according to any one of claims 1-7. A multi-band image acquisition system and a rejection mechanism are further provided on the frame. The multi-band image acquisition system is used to acquire information of the materials on the first transmission channel and the second transmission channel. The rejection mechanism is used to reject the unqualified materials discharged from the first transmission channel and the second transmission channel during free fall.

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