Negative pressure conveying and feeding anti-agglomeration device for negative electrode material

Abstract

The invention relates to the field of negative pressure conveying of negative electrode materials, in particular to a negative pressure conveying and feeding anti-agglomeration device for the negative electrode materials, and solves the problems of material agglomeration prevention, automatic material filtering and automatic device cleaning during material conveying. The negative pressure conveying and feeding anti-agglomeration device comprises a negative pressure conveying box, a feeding box and a negative pressure exhaust fan, the feeding box is mounted at the front end of the negative pressure conveying box, and the negative pressure exhaust fan is mounted at the rear end of the negative pressure conveying box; a negative pressure exhaust fan is installed at the rear end of the negative pressure conveying box, a fixing box is fixedly installed on the inner wall of the negative pressure conveying box, and a dispersing plate is arranged on the outer wall of the front end of the fixing box. According to the device, the particle separation phenomenon can be achieved, meanwhile, filtering is conducted through the dispersing plate, the screening function is achieved, materials are subjected to double dispersing and filtering through the dispersing plate, the large block phenomenon can be avoided, meanwhile, particle agglomeration can be avoided, and the situation that subsequent treatment is affected is prevented; the device can be automatically cleaned, and the phenomenon of frequent shutdown for replacement and filtration is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of negative pressure conveying of negative electrode materials, and particularly relates to a negative pressure conveying and anti-agglomeration loading device for negative electrode materials. BACKGROUND

[0002] In the production process of carbon-based negative electrode materials of lithium batteries, raw material conveying is a key link to ensure continuous production and product quality. With the rapid development of the new energy industry, higher requirements are put forward for the production process of negative electrode materials, especially in the material conveying link, efficiency, quality and environmental protection requirements need to be considered. At present, the conveying of common negative electrode materials (such as graphite powder) is mostly carried out by using negative pressure loading technology. This technology realizes the closed pipeline conveying of powdery materials by means of vacuum suction, and has the advantages of dust-free environmental protection, high space utilization rate, etc.

[0003] Carbon-based negative electrode materials (such as graphite) are prone to agglomeration during conveying due to the surface hydrophobicity and the van der Waals force between particles. Especially in high-speed airflow conveying, the collision between particles is intensified, which further leads to agglomeration, affecting the subsequent slurry dispersion effect and the quality of the electrode sheet.

[0004] In order to prevent dust from escaping and equipment failure, the existing device is equipped with a filter component, but sticky particles are easily attached to the surface of the filter material, causing the air permeability to decrease or even be blocked, which requires frequent shutdown for cleaning, seriously affecting the production efficiency. Traditional equipment lacks an automatic cleaning mechanism and relies on regular maintenance by manual labor, which not only increases the labor intensity, but also may cause batch quality problems due to untimely cleaning.

[0005] Therefore, the present application provides a negative pressure conveying and anti-agglomeration loading device for negative electrode materials to solve the above problems. SUMMARY

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a negative pressure conveying and anti-agglomeration loading device for negative electrode materials to solve the above problems of preventing material agglomeration during conveying and automatically filtering and cleaning the device.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: The utility model provides an anode material negative pressure conveying feeding anti -agglomerate device, including negative pressure conveying box, feed tank and negative pressure exhaust fan, the front end of negative pressure conveying box is installed with feed tank, the rear end of negative pressure conveying box is installed with negative pressure exhaust fan, the inner wall of negative pressure conveying box is fixedly installed with fixed box, the outer wall of fixed box front end is provided with the board that scatters, the lateral wall of board that scatters slides in the inner side wall of negative pressure conveying box, the outer wall of board that scatters is provided with cleaning plate, the lateral wall of negative pressure conveying box is rotatably connected with drive shaft, drive shaft is connected with board that scatters drive, the inside sliding connection of fixed box has collection box, collection box is connected with drive shaft drive, one end of collection box is sealed and slides in the inside of sealing box, sealing box is fixedly installed on the outer wall of negative pressure conveying box, when the negative pressure conveying of the utility model is in, in order to avoid the phenomenon of particle condensation and particle too big, the utility model passes through the relatively extrusion of board that scatters, realizes the phenomenon of particle separation, passes through board that scatters and filters simultaneously, realizes the function of screening, material passes through the double scattering and filtering of board that scatters, can avoid the phenomenon of big, can avoid the agglomeration of particle simultaneously, prevent the influence subsequent processing, and the utility model passes through the setting of cleaning plate, can realize automatic cleaning device, prevent the phenomenon of frequent shutdown and change filtering.

[0008] Preferably, a T-shaped sliding groove is formed on the outer wall of the scattering plate, a threaded sliding block is slidably connected to the inner wall of the T-shaped sliding groove, the other end of the threaded sliding block is threadedly connected to the outer wall of the reciprocating screw rod, the reciprocating screw rod is rotatably connected to the inner wall of the negative pressure conveying box, the reciprocating screw rod is drivingly connected to the drive shaft through a first transmission belt, and the drive shaft is fixedly connected to the output end of the drive motor.

[0009] Preferably, a sealing box is fixedly installed on the inner wall of the negative pressure conveying box, a sealing folding plate is arranged in the sealing box, one end of the sealing folding plate is sealingly connected to the outer wall of one end of the scattering plate, and the other end of the sealing folding plate is fixedly connected to the inner wall of the sealing box.

[0010] Preferably, an arc tooth groove is formed on the inner side wall of the negative pressure conveying box, and an inner tooth is arranged on the inner wall of the arc tooth groove and is drivingly connected with the cleaning plate.

[0011] Preferably, a linkage shaft is rotatably connected to one end of the dispersing plate away from the sealing box, a driving gear is fixedly installed on the outer wall of the linkage shaft, the driving gear is slidingly connected in the arc tooth groove, and the driving gear is meshingly connected with the inner tooth; a cleaning lead screw is rotatably connected to the outer wall of the dispersing plate away from the T-shaped sliding groove, and the cleaning plate is threadedly connected to the outer wall of the cleaning lead screw, the outer wall of the cleaning plate abuts against the outer wall of the dispersing plate, and the cleaning lead screw is drivingly connected with the linkage shaft through the bevel gear. When the threaded sliding block abuts against the dispersing plate and moves, the driving gear on the outer wall of the dispersing plate will mesh and rotate with the inner tooth, so that the rotation of the driving gear drives the linkage shaft to rotate, and the linkage shaft drives the cleaning lead screw to rotate under the action of the bevel gear, so that the cleaning plate on the outer wall of the dispersing plate moves back and forth to clean the outer wall of the dispersing plate. The movement of the dispersing plate can drive the cleaning lead screw to rotate synchronously, so as to realize the back-and-forth cleaning of the cleaning plate and realize the function of automatic cleaning. The displacement of the cleaning plate is linked with the dispersing of the device, and the outer wall of the dispersing plate can be automatically cleaned by the cleaning plate, so as to prevent the phenomenon of blockage and avoid the phenomenon of material aggregation caused by the failure of dispersing.

[0012] Preferably, a driving bevel gear is fixedly installed on the outer wall of the driving shaft, the driving bevel gear is meshingly connected with a cleaning bevel gear, the cleaning bevel gear is fixedly installed on the outer wall of one end of a cleaning shaft, the cleaning shaft is rotatably connected to the outer side wall of the negative pressure conveying box, a bidirectional lead screw is rotatably connected to the inner wall of the sealing box, the bidirectional lead screw is drivingly connected with the cleaning shaft through a second transmission belt, a waste box is fixedly installed at the bottom of the sealing box, and the waste box is in sealing communication with the inner wall of the sealing box.

[0013] Preferably, the collecting box is threadedly connected to the outer wall of the bidirectional lead screw, and the front end of the fixed box is of an open type. The front end of the fixed box of the device is of an open type, and the rear end is a hole plate, so that the negative pressure feeding can be facilitated.

[0014] Preferably, the inner bottom wall of the collecting box is provided with a plurality of discharging grooves matched with the waste box, the inner wall of the discharging groove is sealingly and slidably connected with a sealing plate, one end of the sealing plate is fixedly connected with the outer wall of a push rod through a connecting block, the push rod is slidably connected with the inner side wall of the collecting box, one end of the push rod is matched with the inner side wall of the sealing box, and the other end of the push rod is fixedly installed with a return spring, and the other end of the return spring is fixedly connected with the inner wall of the collecting box; in order to screen different sizes of particles, after being dispersed and screened by the dispersing plate, the large particles will enter the inside of the collecting box, after the driving motor is started, the driving shaft will synchronously drive the cleaning shaft to rotate, the second transmission belt synchronously drives the bidirectional lead screw to rotate, and the collecting box on the outer wall thereof moves left and right, the collecting box is two-section type, when the collecting box moves, one end will slide into the inside of the sealing box, when the collecting box slides to the innermost end of the sealing box, the push rod abuts against the inner wall of the sealing box, the push rod drives the sealing plate to move through the connecting block, at this time, the discharging groove is in communication with the waste box, so that the waste in the collecting box is discharged into the waste box, and the automatic cleaning function is realized; through the two-section collecting box, the device can realize reciprocating and alternating use, when in use, the collecting box can be automatically replaced, so that the collecting box can realize automatic cleaning, after the collecting box is replaced, the sealing plate at the bottom thereof is opened, the waste in the inside thereof is automatically poured out, when the collecting box is replaced, the inside can be sealed again, and the integrated cleaning function is realized.

[0015] The beneficial effects of the present application are: 1. When the device is used for negative pressure conveying, in order to avoid the phenomenon of particle agglomeration and particle oversize, the device relatively extrudes through the dispersing plate, realizes particle separation, filters through the dispersing plate, realizes screening function, the material is double-dispersed and filtered through the dispersing plate, the phenomenon of large block can be avoided, the particle agglomeration can be avoided, the subsequent treatment is prevented from being affected, and the automatic cleaning device can be realized through the setting of the cleaning plate, and the phenomenon of frequent shutdown for replacement filtering is prevented.

[0016] 2. When the dispersing plate extrudes and disperses, in order to avoid that the material is not discharged through the dispersing plate, the sealing folding plate is pulled to fill the gap of the dispersing plate to prevent the phenomenon of missing dispersion, and the two dispersing plates are extruded to each other to ensure the dispersion effect.

[0017] 3、The device can drive the cleaning screw to rotate synchronously through the action of the dispersing plate, thereby realizing the back-and-forth cleaning of the cleaning plate and the function of automatic cleaning, and the displacement of the cleaning plate is linked with the dispersing of the device, so that the outer wall of the dispersing plate can be automatically cleaned by the cleaning plate to prevent the phenomenon of blockage and the phenomenon of agglomeration caused by the failure to disperse the material.

[0018] 4、The device can realize reciprocating and alternating use through the setting of the two-section collecting box, can automatically replace the collecting box during use, so that the collecting box can realize automatic cleaning, and after replacing the collecting box, the sealing plate at the bottom thereof can be opened to automatically dump the waste inside, and the sealing can be performed again during replacement of the collecting box, thereby realizing the function of integrated cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the schematic diagram of the present application; Figure 2 It is a sectional view of the negative pressure conveying box of the present application; Figure 3 It is a sectional view of the end face of the dispersing plate of the present application; Figure 4 It is a schematic diagram of the thread arc block of the present application; Figure 5 It is a schematic diagram of the inside of the sealing box of the present application; Figure 6 It is a schematic diagram of the inside of the arc tooth groove of the present application; Figure 7 It is a schematic diagram of the dispersing plate of the present application; Figure 8 It is a schematic diagram of the fixed box and the collecting box of the present application; Figure 9 It is a schematic diagram of the inside of the collecting box of the present application.

[0020] In the drawing: 1, negative pressure conveying box; 101, arc tooth groove; 102, inner tooth; 2, feeding box; 3, negative pressure air extractor; 4, fixed box; 5, dispersing plate; 501, T-shaped sliding groove; 502, threaded sliding block; 503, reciprocating screw; 504, first transmission belt; 505, sealing box; 506, sealing folding plate; 6, cleaning plate; 601, linkage shaft; 602, driving gear; 603, cleaning screw; 7, collecting box; 701, discharging groove; 702, sealing plate; 703, connecting block; 704, pushing rod; 705, return spring; 8, sealing box; 9. Drive shaft; 901. Drive bevel gear; 902. Cleaning bevel gear; 903. Cleaning shaft; 904. Double-acting lead screw; 905. Second transmission belt; 906. Scrap bin. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] A negative pressure conveying and anti-agglomeration device for negative electrode materials, as shown in the attached figure. Figures 1-2 As shown, the system includes a negative pressure conveying box 1, a feeding box 2, and a negative pressure exhaust fan 3. The feeding box 2 is installed at the front end of the negative pressure conveying box 1, and the negative pressure exhaust fan 3 is installed at the rear end of the negative pressure conveying box 1. A fixed box 4 is fixedly installed on the inner wall of the negative pressure conveying box 1. A flushing plate 5 is provided on the outer wall of the front end of the fixed box 4. The side wall of the flushing plate 5 slides on the inner side wall of the negative pressure conveying box 1. A cleaning plate 6 is provided on the outer wall of the flushing plate 5. A drive shaft 9 is rotatably connected to the side wall of the negative pressure conveying box 1. The drive shaft 9 is drivenly connected to the flushing plate 5. A collection box 7 is slidably connected inside the fixed box 4. The collection box 7 is drivenly connected to the drive shaft 9. The end seal is slidably connected inside the sealing box 8, which is fixedly installed on the outer wall of the negative pressure conveying box 1. When the device is conveying under negative pressure, in order to avoid particle agglomeration and excessively large particles, the device uses the dispersing plate 5 to relatively squeeze and separate the particles. At the same time, the dispersing plate 5 is used for filtration, which realizes the screening function. The material undergoes double dispersing and filtration through the dispersing plate 5, which can avoid large pieces and particle agglomeration, thus preventing it from affecting subsequent processing. In addition, the device has an automatic cleaning device through the setting of the cleaning plate 6, which can prevent frequent shutdowns for filter replacement.

[0023] As attached Figures 1-4As shown, the outer wall of the dispersing plate 5 is provided with a T-shaped sliding groove 501, the inner wall of the T-shaped sliding groove 501 is slidably connected with a threaded sliding block 502, the other end of the threaded sliding block 502 is threadedly connected with the outer wall of a reciprocating lead screw 503, the reciprocating lead screw 503 is rotatably connected with the inner wall of the negative pressure conveying box 1, the reciprocating lead screw 503 is drivingly connected with the driving shaft 9 through a first transmission belt 504, and the driving shaft 9 is fixedly connected with the output end of the driving motor; when the device is in use, first, the driving motor is started to drive the driving shaft 9 to rotate, and when the driving shaft 9 rotates, the reciprocating lead screw 503 will be driven to rotate through the first transmission belt 504, and the threaded sliding block 502 on the outer wall thereof reciprocates up and down, and the threaded sliding block 502 slides on the outer wall of the dispersing plate 5, and then abuts against the dispersing plate 5 to displace up and down, and the two dispersing plates 5 disperse and filter the material on the inner wall thereof, and when the conveying material is started, the material is fed through the feeding box 2, and the negative pressure exhaust fan 3 is started to realize the function of negative pressure conveying.

[0024] As shown in Figs. 1 and 2, Figure 5 As shown, the inner wall of the negative pressure conveying box 1 is fixedly installed with a sealing box 505, the sealing box 505 is provided with a sealing folding plate 506 in the inside, one end of the sealing folding plate 506 is sealingly connected with the outer wall of one end of the dispersing plate 5, and the other end of the sealing folding plate 506 is fixedly connected with the inner wall of the sealing box 505; when the dispersing plate 5 of the device is extruded and dispersed, in order to avoid that the material is not filtered and discharged after being dispersed, the sealing folding plate 506 is pulled when the dispersing plate 5 rotates, so that the sealing folding plate 506 fills the gap of the dispersing plate 5 to prevent the phenomenon of missing dispersion, and the two dispersing plates 5 of the device are extruded to each other to ensure the dispersion effect.

[0025] As shown in Figs. 1 and 2, Figure 2 and Figs. 3 and 4, Figure 6 As shown, the inner wall of the negative pressure conveying box 1 is provided with an arc tooth groove 101, the inner wall of the arc tooth groove 101 is provided with an inner tooth 102, and the inner tooth 102 is drivingly connected with the cleaning plate 6.

[0026] As shown in Figs. 1 and 2, Figure 2 and Figs. 3 and 4, Figure 7As shown, one end of the dispersing plate 5 is rotatably connected to the outer side of the sealing box 505, a driving gear 602 is fixedly installed on the outer wall of the linkage shaft 601, the driving gear 602 is slidably connected inside the arc tooth groove 101, and the driving gear 602 is in meshing connection with the inner tooth 102; a cleaning lead screw 603 is rotatably connected to the outer wall of the end of the dispersing plate 5 away from the T-shaped sliding groove 501, a cleaning plate 6 is threadedly connected to the outer wall of the cleaning lead screw 603, the outer wall of the cleaning plate 6 abuts against the outer wall of the dispersing plate 5, and the cleaning lead screw 603 is drivingly connected to the linkage shaft 601 through the bevel gear; when the threaded sliding block 502 abuts against the dispersing plate 5 to displace, the driving gear 602 on the outer wall of the dispersing plate 5 will mesh and rotate with the inner tooth 102 at this time, so that the rotation of the driving gear 602 drives the linkage shaft 601 to rotate, so that the linkage shaft 601 drives the cleaning lead screw 603 to rotate under the action of the bevel gear, so that the cleaning plate 6 on the outer wall of the dispersing plate 5 displaces forward and backward to clean the outer wall of the dispersing plate 5; the displacement of the cleaning plate 6 and the dispersing of the device are linked, the cleaning plate 6 can automatically clean the outer wall of the dispersing plate 5, the phenomenon of blockage is prevented, and the phenomenon of material aggregation caused by the inability to disperse the material is avoided.

[0027] As shown in the accompanying drawings, Figure 1 The outer wall of the driving shaft 9 is fixedly installed with a driving bevel gear 901, the driving bevel gear 901 is in meshing connection with a cleaning bevel gear 902, the cleaning bevel gear 902 is fixedly installed on the outer wall of one end of a cleaning shaft 903, the cleaning shaft 903 is rotatably connected to the outer side wall of the negative pressure conveying box 1, a bidirectional lead screw 904 is rotatably connected to the inner wall of the sealing box 8, the bidirectional lead screw 904 is drivingly connected to the cleaning shaft 903 through a second transmission belt 905, a waste box 906 is fixedly installed at the bottom of the sealing box 8, and the waste box 906 is in sealed communication with the inner wall of the sealing box 8.

[0028] As shown in the accompanying drawings, Figures 1-2 The collecting box 7 is threadedly connected to the outer wall of the bidirectional lead screw 904, and the front end of the fixed box 4 is of an open type; the front end of the fixed box 4 of the device is of an open type, and the rear end is a hole plate, so that the negative pressure feeding can be facilitated.

[0029] As shown in the accompanying drawings, Figures 8-9As shown, the inner bottom wall of the collecting box 7 is provided with a plurality of discharging grooves 701 matched with the waste box 906, the inner wall of the discharging groove 701 is sealingly and slidably connected with a sealing plate 702, one end of the sealing plate 702 is fixedly connected with the outer wall of a push rod 704 through a connecting block 703, the push rod 704 is slidably connected with the inner side wall of the collecting box 7, one end of the push rod 704 is matched with the inner side wall of the sealing box 8, the other end of the push rod 704 is fixedly installed with a return spring 705, the other end of the return spring 705 is fixedly connected with the inner wall of the collecting box 7; in order to screen different sizes of particles, after being screened by the scattering plate 5, the large particles will enter the inside of the collecting box 7, after the driving motor is started, the driving shaft 9 will synchronously drive the cleaning shaft 903 to rotate, the second transmission belt 905 synchronously drives the bidirectional lead screw 904 to rotate, and the collecting box 7 on the outer wall thereof moves left and right, the collecting box 7 of the device is two-section type, when the collecting box 7 moves, one end thereof will slide into the inside of the sealing box 8, when the collecting box 7 slides to the innermost end of the sealing box 8, the push rod 704 will abut against the inner wall of the sealing box 8, the push rod 704 drives the sealing plate 702 to move through the connecting block 703, at this time, the discharging groove 701 will be in a conductive state with the waste box 906, so that the waste in the collecting box 7 can be discharged into the inside of the waste box 906, and the automatic cleaning function is realized; through the two-section collecting box 7, the device can realize reciprocating and alternating use, when in use, the collecting box 7 can be automatically replaced, so that the collecting box 7 can realize automatic cleaning, after the collecting box 7 is replaced, the sealing plate 702 at the bottom thereof is opened, the waste in the inside thereof is automatically poured, when the collecting box 7 is replaced, the inside can be sealed again, and the integrated cleaning function is realized.

[0030] It should be noted that, in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, it needs to be explained that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A negative electrode material negative pressure conveying and feeding anti-agglomeration device, characterized in that, Including negative pressure conveying box (1), feed tank (2) and negative pressure exhaust fan (3); The front end of the negative pressure conveying box (1) is provided with the feed tank (2), and the rear end of the negative pressure conveying box (1) is provided with the negative pressure exhaust fan (3); The inner wall of the negative pressure conveying box (1) is fixedly provided with a fixed box (4); The outer wall of the front end of the fixed box (4) is provided with a scattering plate (5), and the side wall of the scattering plate (5) slides on the inner side wall of the negative pressure conveying box (1); The outer wall of the scattering plate (5) is provided with a cleaning plate (6); The side wall of the negative pressure conveying box (1) is rotatably connected with a driving shaft (9), the driving shaft (9) is drivingly connected with the scattering plate (5), the inside of the fixed box (4) is slidably connected with a collecting box (7), the collecting box (7) is drivingly connected with the driving shaft (9), one end of the collecting box (7) is sealingly and slidably connected in the inside of a sealing box (8), and the sealing box (8) is fixedly installed on the outer wall of the negative pressure conveying box (1).

2. The negative material negative pressure conveying and feeding anti-agglomeration device according to claim 1, characterized in that, A T-shaped sliding groove (501) is formed in the outer wall of the scattering plate (5), a threaded sliding block (502) is slidably connected to the inner wall of the T-shaped sliding groove (501), the other end of the threaded sliding block (502) is threadedly connected to the outer wall of a reciprocating lead screw (503), the reciprocating lead screw (503) is rotatably connected to the inner wall of the negative pressure conveying box (1), and the reciprocating lead screw (503) is drivingly connected with the driving shaft (9) through a first transmission belt (504). The output end of the driving shaft (9) is fixedly connected with a driving motor.

3. The negative material negative pressure conveying and feeding anti-agglomeration device according to claim 2, characterized in that, A sealing box (505) is fixedly installed on the inner wall of the negative pressure conveying box (1), a sealing folding plate (506) is arranged in the inside of the sealing box (505), one end of the sealing folding plate (506) is sealingly connected with the outer wall of one end of the scattering plate (5), and the other end of the sealing folding plate (506) is fixedly connected with the inner wall of the sealing box (505).

4. The negative material negative pressure conveying and feeding anti-agglomeration device according to claim 3, characterized in that, An arc tooth groove (101) is formed in the inner side wall of the negative pressure conveying box (1), an inner tooth (102) is arranged on the inner wall of the arc tooth groove (101), and the inner tooth (102) is drivingly connected with the cleaning plate (6).

5. The negative material negative pressure conveying and feeding anti-agglomeration device according to claim 4, characterized in that, One end of the scattering plate (5) is rotatably connected with a linkage shaft (601) on the side away from the sealing box (505), a driving gear (602) is fixedly installed on the outer wall of the linkage shaft (601), the driving gear (602) is slidably connected in the inside of the arc tooth groove (101), and the driving gear (602) is meshingly connected with the inner tooth (102). A cleaning lead screw (603) is rotatably connected to the outer wall of one end of the scattering plate (5) away from the T-shaped sliding groove (501), the cleaning plate (6) is threadedly connected to the outer wall of the cleaning lead screw (603), the outer wall of the cleaning plate (6) abuts against the outer wall of the scattering plate (5), and the cleaning lead screw (603) is drivingly connected with the linkage shaft (601) through a bevel gear.

6. The negative material negative pressure conveying and feeding anti-agglomeration device according to claim 5, characterized in that, The outer wall of the driving shaft (9) is fixedly provided with a driving bevel gear (901), the driving bevel gear (901) is in meshing connection with a cleaning bevel gear (902), the cleaning bevel gear (902) is fixedly provided on the outer wall of one end of a cleaning shaft (903), the cleaning shaft (903) is rotatably connected to the outer side wall of the negative pressure conveying box (1), a bidirectional screw rod (904) is rotatably connected to the inner wall of the sealing box (8), the bidirectional screw rod (904) is drivingly connected to the cleaning shaft (903) through a second transmission belt (905), a waste box (906) is fixedly provided on the bottom of the sealing box (8), and the waste box (906) is sealingly and communicatively connected to the inner wall of the sealing box (8).

7. The negative material negative pressure conveying and feeding anti-agglomeration device according to claim 6, characterized in that, The collecting box (7) is threadedly connected to the outer wall of the bidirectional screw rod (904), and the front end of the fixed box (4) is of an open type.

8. The negative material negative pressure conveying and feeding anti-agglomeration device according to claim 7, characterized in that, A discharging groove (701) is formed in the inner bottom wall of the collecting box (7), the number of the discharging grooves (701) is plural, the discharging grooves (701) are matched with the waste box (906), a sealing plate (702) is sealingly and slidably connected to the inner wall of the discharging groove (701), one end of the sealing plate (702) is fixedly connected to the outer wall of a push rod (704) through a connecting block (703), the push rod (704) is slidably connected to the inner side wall of the collecting box (7), one end of the push rod (704) is matched with the inner side wall of the sealing box (8), the other end of the push rod (704) is fixedly provided with a reset spring (705), and the other end of the reset spring (705) is fixedly connected to the inner wall of the collecting box (7).

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