Grinding equipment discharging and conveying device with screening function and using method of grinding equipment discharging and conveying device

Abstract

The invention relates to the technical field of discharging conveying, in particular to a grinding equipment discharging conveying device with a screening function and a using method of the grinding equipment discharging conveying device. The grinding equipment discharging conveying device comprises a conveying pipe, a feeding bin arranged at one end of the conveying pipe and a discharging opening formed in the other end of the feeding bin; a rotating shaft is rotationally arranged in the conveying pipe, and a spiral blade is fixedly connected to the outer part of the rotating shaft; the spiral blade comprises a material receiving plate fixedly connected to the rotating shaft, a screen fixedly connected to one side of the material receiving plate, a cavity formed between the material receiving plate and the screen, an opening formed in the material receiving plate and a bucket fixedly connected to one side of the opening. The screening device has the beneficial effects that in the conveying process of the materials through the spiral blades, the materials are screened through the screen, large-particle materials are screened to the interior of the cavity, the purpose of preliminary screening of the materials in the material conveying process is achieved, and therefore the screening pressure of follow-up screening equipment is relieved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of material feeding and conveying, and in particular to a material feeding and conveying device for grinding equipment with a screening function and a use method thereof. Background Art

[0002] In the actual application of grinding equipment, material grinding and screening are two crucial links. The grinding equipment breaks and refines the block or granular materials to the required particle size through specific mechanical action. However, the existing unloading conveying device mainly plays a simple conveying role when conveying the ground material from the grinding equipment to the screening equipment, and does not have the screening function for the material;

[0003] Specifically, existing unloading and conveying devices usually include conveyor belts, screw conveyors and other equipment, which can effectively transport the ground materials from the outlet of the grinding equipment to the subsequent processing links. However, due to the unevenness of the particle size of the materials during the grinding process, as well as the wear and errors that may exist in the grinding equipment itself, the output materials are often mixed with particles of different sizes. If these particles enter the subsequent processing flow directly without screening, it will not only affect the quality of the final product, but also bring greater screening pressure to the subsequent screening equipment;

[0004] The main function of screening equipment is to separate materials according to their particle size to ensure that the subsequent process has material particle size requirements. However, when the material contains a large number of particles of different sizes, the screening equipment needs to consume more energy and time to complete the screening task, which undoubtedly reduces production efficiency;

[0005] In order to solve this problem, the market is in urgent need of a grinding equipment unloading conveying device with screening function. This device can perform preliminary screening on the material while conveying the material, thereby reducing the screening pressure of the subsequent screening equipment and improving production efficiency.

[0006] Therefore, a grinding equipment unloading and conveying device with a screening function is needed to overcome the occurrence of the above-mentioned problems. Summary of the invention

[0007] In order to solve the above problems, an embodiment of the present invention provides a grinding equipment unloading and conveying device with a screening function and a method of using the same, which achieves the purpose of solving the problems raised in the background technology.

[0008] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a material feeding and conveying device of a grinding equipment with a screening function, comprising a conveying pipe, a feed bin arranged at one end of the conveying pipe, and a discharge port arranged at the other end of the feed bin;

[0009] A rotating shaft is rotatably arranged inside the delivery pipe, a driving source for driving the rotating shaft to rotate is arranged at one end of the delivery pipe, and a spiral blade is fixedly connected to the outside of the rotating shaft;

[0010] The spiral blade includes a material receiving plate fixedly connected to the rotating shaft, a screen fixedly connected to one side of the material receiving plate, a cavity arranged between the material receiving plate and the screen, an opening opened on the material receiving plate, and a bucket fixedly connected to one side of the opening;

[0011] As the spiral blades rotate to transport the material, the bucket forces the material into the cavity to be screened through the screen.

[0012] As a further improvement of the above technical solution:

[0013] The bucket is located in the middle of the material receiving plate.

[0014] The bucket includes a plurality of fixing rods fixedly connected to the side of the opening; wherein intervals are provided between the plurality of fixing rods.

[0015] The discharge port includes an outlet 1 opened at the bottom of the conveying pipe and an outlet 2 opened at one end of the conveying pipe; wherein the outlet 2 is communicated with the cavity.

[0016] The rotating shaft and the material receiving plate are provided with guide grooves for use with each other, and the screen is slidably arranged inside the guide grooves.

[0017] A star-shaped feeder is arranged on the feed bin.

[0018] There are multiple openings, and the multiple openings are concentratedly arranged at one end of the material receiving plate close to the feed bin.

[0019] A vibration motor is arranged outside the conveying pipe.

[0020] A method for using a grinding equipment feeding and conveying device with a screening function, comprising the following steps:

[0021] S01, loading: loading materials into the feed bin so that the materials evenly enter the conveying pipe through the star-shaped feeder;

[0022] S02, feeding; the driving source drives the rotating shaft to rotate, so that the spiral blade rotates to transport the material;

[0023] S03, screening; after the spiral blade rotates, the material is shoveled into the cavity through the bucket, and the material is screened through the screen; specifically, the material that can pass through the screen is discharged from the cavity, and the material that cannot pass through the screen is screened into the cavity;

[0024] S04, discharging; the material outside the cavity is discharged through outlet 1, and the material inside the cavity is discharged through outlet 2.

[0025] The beneficial effects of the embodiments of the present invention are:

[0026] During the material conveying process of the spiral blade, the material is screened through the screen, so that the large particles of material are screened into the cavity, achieving the purpose of preliminary screening of the material during the material conveying process, thereby reducing the screening pressure of the subsequent screening equipment and improving production efficiency;

[0027] When conveying materials, the materials are shoveled into the cavity through the bucket. Due to the influence of vibration, large particles in the materials will be concentrated on the surface of the materials. The large particles concentrated on the surface of the materials can be shoveled into the cavity through the bucket set in the middle of the material receiving plate, which is convenient for screening large particles. When screening, the materials are mainly concentrated at the bottom of the cavity. When the bucket is located in the middle of the material receiving plate, it can prevent the materials from falling out of the opening.

[0028] When shoveling materials through multiple fixed rods with intervals, large particles of materials are retained on the fixed rods, while small particles of materials leak out through the intervals, making it easier to shovel large particles of materials into the cavity, while reducing the amount of small particles of materials shoveled into the cavity, thereby reducing the screening pressure of the screen;

[0029] The screen is installed into the conveying pipe through the guide groove, which is convenient for disassembly and installation of the screen, thereby facilitating cleaning and replacement of the screen; at the same time, after the screen is removed, the present application can be used as a common screw conveyor, that is, the application scope of the present application is improved;

[0030] Multiple openings are concentrated in the initial section of the conveying pipe, so that the material can enter the cavity for screening when entering the initial section of the conveying pipe. In the middle and rear sections of the conveying pipe, the material can no longer enter the cavity, which can ensure that the material has sufficient screening time in the cavity for screening, thereby ensuring the screening effect of the material; at the same time, when the large particle material moves to the middle and rear sections of the conveying pipe, there is no small particle material in the cavity at this time. With the rotation of the spiral blades, the large particle material rolls in the cavity, which can cause a certain degree of collision between the large particle material and the screen. After the collision, the screen vibrates, thereby achieving a cleaning effect on the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0033] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0034] Figure 4 It is a schematic diagram of material transportation of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the spiral blade of the present invention from a first viewing angle;

[0036] Figure 6 It is a structural schematic diagram of the spiral blade of the present invention from a second viewing angle;

[0037] Figure 7 for Figure 6 A schematic diagram of the structure enlargement at the center A;

[0038] Figure 8 This is a schematic diagram of the structure after the screen is removed from the spiral blade of the present invention.

[0039] In the figure: 1. conveying pipe; 2. spiral blade; 3. rotating shaft; 4. feeding bin; 5. discharging port; 6. guide groove; 7. star-shaped feeder; 8. vibration motor;

[0040] 21. Material receiving plate; 22. Screen; 23. Cavity; 24. Opening; 25. Bucket;

[0041] 51, Exit 1; 52, Exit 2;

[0042] 251. Fixing rod; 252. Spacing. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0044] See also Figures 1 to 8 The embodiment of the present invention discloses a grinding equipment feeding and conveying device with screening function. Figure 1 As shown, the material feeding and conveying device of the grinding equipment with screening function of this embodiment comprises a conveying pipe 1, a feeding bin 4 arranged at one end of the conveying pipe 1, and a discharge port 5 arranged at the other end of the feeding bin 4;

[0045] A rotating shaft 3 is rotatably arranged inside the delivery pipe 1, a driving source for driving the rotating shaft 3 to rotate is arranged at one end of the delivery pipe 1, and a spiral blade 2 is fixedly connected to the outside of the rotating shaft 3;

[0046] In actual use, the material is added into the feed bin 4, and the driving source drives the rotating shaft 3 to rotate, and the material is transported by the spiral blade 2, so that the material inside the feed bin 4 is transported to the discharge port 5 for discharge, thereby realizing the transportation of the material;

[0047] In actual use, the feed bin 4 can be set at the feed port of the grinding device, and the discharge port 5 can be set at the feed port of the screening device. The grinding device crushes and grinds the material and discharges it through the discharge port, so that the material enters the interior of the feed bin 4, and then the material is transported to the feed port of the screening device through the discharge conveying device, so that the material generated by the grinding device can be transported to the screening device;

[0048] The spiral blade 2 includes a material receiving plate 21 fixedly connected to the rotating shaft 3, a screen 22 fixedly connected to one side of the material receiving plate 21, a cavity 23 arranged between the material receiving plate 21 and the screen 22, an opening 24 opened on the material receiving plate 21, and a bucket 25 fixedly connected to one side of the opening 24;

[0049] The spiral blade 2 conveys the material while rotating. As the spiral blade 2 rotates, the bucket 25 shovels the material into the cavity 23. Due to the continuous rotation of the spiral blade 2, the material in the cavity 23 is screened through the screen 22. The material that can pass through the screen 22 is screened out, and the material that cannot pass through the screen 22 is screened into the cavity 23. The material that cannot pass through the screen 22 is a large particle material that has not been fully ground. In production operations, the large particle material needs to be screened out by a screening device.

[0050] When the spiral blade 2 rotates to transport the material, the bucket 25 allows the material to enter the cavity 23 to be screened through the screen 22;

[0051] During the material conveying process of the spiral blade 2, the material is screened through the screen 22, so that large particles of material are screened into the interior of the cavity 23, achieving the purpose of preliminary screening of the material during the material conveying process, thereby reducing the screening pressure of subsequent screening equipment and improving production efficiency.

[0052] As a further illustration of this application:

[0053] The bucket 25 is located in the middle of the material receiving plate 21;

[0054] like Figure 4 As shown, when the present application is conveying materials, the materials can only be conveyed from a high place to a low place, that is, the conveying pipe 1 is tilted, and in order to ensure the screening quality, the maximum height of the material cannot exceed the maximum height of the bucket 25, and the minimum height of the material cannot be lower than the minimum height of the bucket 25, so that the bucket 25 can shovel the surface of the material; at the same time, after the height of the material is restricted, it can prevent the material from accumulating at the screen 22 and affecting the screening of the material by the screen 22, and it can also prevent the material from accumulating at the screen 22 and causing the material and the screen 22 to move relative to each other, causing greater wear on the screen 22;

[0055] The reason why the material can only be transported from a high place to a low place is that: the material receiving plate 21 provided in the present application is arranged close to the feed bin 4, and the material can be transported from a high place to a low place to ensure that the material is gathered on the material receiving plate 21 when the material is transported, so that the bucket 25 can shovel the material into the cavity 23; at the same time, since the material inside the cavity 23 needs to be discharged by the rotation of the spiral blade 2, the material inside the cavity 23 can only be discharged normally when the material is transported from a high place to a low place;

[0056] When the material is transported, the bucket 25 is used to shovel the material into the cavity 23. Due to the vibration of the machine body during operation, large particles in the material will be concentrated on the surface of the material. The bucket 25 set in the middle of the material receiving plate 21 can shovel the large particles concentrated on the surface of the material into the cavity 23, which is convenient for screening the large particles. When screening, the material is mainly concentrated at the bottom of the cavity 23. When the bucket 25 is located in the middle of the material receiving plate 21, it can prevent the material from falling out of the opening 24.

[0057] As a further illustration of this application:

[0058] Since the material in the present application mainly relies on the bucket 25 to enter the cavity 23, but it is difficult for the bucket 25 to shovel all the materials entering the conveying pipe 1 into the cavity 23, the present application cannot guarantee that all the materials entering the conveying pipe 1 can be screened. It can play a certain screening effect in the process of conveying materials, and can achieve the purpose of reducing the screening pressure of the subsequent screening device;

[0059] At the same time, since the material produced by the grinding device is usually a powder material with small particles, it is difficult to screen the powder material. In order to ensure the screening effect, the present application mainly screens out large-particle materials with larger diameters. When screening out large-particle materials with larger diameters, the mesh diameter of the screen 22 is larger to facilitate the passage of the powder material. At the same time, the present application can only screen dry powder materials to avoid the "paste screen" phenomenon.

[0060] As a further illustration of this application:

[0061] The bucket 25 includes a plurality of fixing rods 251 fixedly connected to the side of the opening 24; wherein a spacing 252 is provided between the plurality of fixing rods 251;

[0062] When shoveling materials through a plurality of fixed rods 251 with intervals 252, large particles of materials are retained on the fixed rods 251, while small particles of materials leak out through the intervals 252, thereby facilitating shoveling large particles of materials into the cavity 23, while reducing the amount of small particles of materials shoveled into the cavity 23, thereby alleviating the screening pressure of the screen 22;

[0063] The fixing rod 251 can be a square rod or a round rod; when the fixing rod 251 is round, the spacing 252 between the fixing rods 251 varies to a certain extent, that is, the top spacing and the middle spacing between the fixing rods 251 are different, which can easily cause materials to get stuck; when the fixing rod 251 is square, the spacing 252 between the fixing rods 251 is constant, so a square fixing rod 251 is preferred.

[0064] As a further illustration of this application:

[0065] The discharge port 5 includes an outlet 1 51 opened at the bottom of the conveying pipe 1 and an outlet 2 52 opened at one end of the conveying pipe 1; wherein the outlet 2 52 is connected to the cavity 23;

[0066] When the material is transported, the material outside the cavity 23 is discharged through the outlet 1 51 , and the material inside the cavity 23 is discharged through the outlet 2 52 .

[0067] As a further illustration of this application:

[0068] The rotating shaft 3 and the material receiving plate 21 are provided with a guide groove 6 for use with each other, and the screen 22 is slidably arranged inside the guide groove 6;

[0069] In actual use, the screen 22 can be pulled out from the guide groove 6, that is, the screen 22 can be taken out and cleaned; specifically, after opening the end cover at the end of the conveying pipe 1, the screen 22 can be pulled out from the guide groove 6, and after cleaning or replacing the screen 22, it can be installed in the guide groove 6, and then the end cover can be closed;

[0070] The screen 22 is installed into the interior of the delivery pipe 1 through the guide groove 6, which is convenient for disassembly and installation of the screen 22, thereby facilitating cleaning and replacement of the screen 22;

[0071] At the same time, after the screen 22 is removed, the present application can be used as a common screw conveyor, which improves the application scope of the present application.

[0072] The screen 22 can be made of a long flexible material or a spiral rigid material; when the screen 22 is made of a long flexible material, the screen 22 is inserted into the guide groove 6 to deform the screen 22, and the screen 22 can be inserted; when the screen 22 is made of a spiral rigid material, the shape of the screen 22 is matched with the shape of the guide groove 6, that is, the screen 22 is installed into the guide groove 6 by rotating the screen 22;

[0073] The long strip of flexible material screen 22 is easy to manufacture, and the spiral rigid material screen 22 is easy to install inside the guide groove 6, which can be selected according to actual conditions;

[0074] The screen 22 is mainly composed of a frame and a mesh body fixedly connected to the inside of the frame. In actual use, the frame is inserted into the inside of the guide groove 6. In order to facilitate the insertion of the frame into the inside of the guide groove 6, the frame can be set to an arc shape to reduce the contact area between the frame and the guide groove 6 to reduce the friction; a pulley can be installed on the frame to reduce the friction between the frame and the guide groove 6; an oil storage hole can be set on the frame. During installation, the inside of the oil storage hole is filled with lubricating oil. When the frame is installed into the inside of the guide groove 6, the lubricating oil moves from the oil storage hole to the inside of the guide groove 6 through capillary phenomenon, thereby reducing the friction between the frame and the guide groove 6.

[0075] As a further illustration of this application:

[0076] A star-shaped feeder 7 is provided on the feed bin 4;

[0077] The speed at which the material enters the conveying pipe 1 is adjusted by the star-shaped feeder 7, thereby facilitating the control of the height of the material.

[0078] As a further illustration of this application:

[0079] There are multiple openings 24, and the multiple openings 24 are concentrated at one end of the material receiving plate 21 close to the feed bin 4; that is, the multiple openings 24 are concentrated in the initial section of the conveying pipe 1, so that the material can enter the cavity 23 for screening when entering the initial section of the conveying pipe 1, and the material can no longer enter the cavity 23 in the middle section and the rear section of the conveying pipe 1, which can ensure that the material has enough screening time in the cavity 23 for screening, thereby ensuring the screening effect of the material;

[0080] At the same time, when the large particle material moves to the middle section and the rear section of the conveying pipe 1, there is no small particle material inside the cavity 23 at this time. As the spiral blade 2 rotates, the large particle material rolls inside the cavity 23, which can cause a certain degree of collision between the large particle material and the screen 22. After the collision, the screen 22 vibrates, thereby achieving a cleaning effect on the screen 22.

[0081] As a further illustration of this application:

[0082] A vibration motor 8 is arranged outside the conveying pipe 1, and the vibration motor 8 makes the screen 22 vibrate, so that the screen 22 can screen the material; at the same time, after the vibration motor 8 makes the material vibrate, large particles of the material can be concentrated on the surface of the material.

[0083] The embodiment of the present invention discloses a method for using a material feeding and conveying device of a grinding device with a screening function, comprising the following steps:

[0084] S01, loading; loading the material into the feed bin 4 so that the material evenly enters the conveying pipe 1 through the star-shaped feeder 7;

[0085] S02, feeding; the driving source drives the rotating shaft 3 to rotate, so that the spiral blade 2 rotates to transport the material; the conveying pipe 1 should be set at an angle so that the material is transported from a high place to a low place;

[0086] S03, screening; after the spiral blade 2 rotates, the large particles concentrated on the surface of the material and some small particles are shoveled into the cavity 23 through the bucket 25, and the whole device is vibrated by the vibration motor 8, and the material is screened through the screen 22; specifically, the material that can pass through the screen 22 is discharged from the inside of the cavity 23, and the material that cannot pass through the screen 22 is screened into the inside of the cavity 23;

[0087] S04, discharging; as the spiral blade 2 continues to rotate, the material inside the conveying pipe 1 and the large particle material inside the cavity 23 are pushed to one end of the conveying pipe 1; so that the material outside the cavity 23 is discharged through the outlet 1 51, and the material inside the cavity 23 is discharged through the outlet 2 52.

[0088] It should be noted that in the description of the present invention, the terms "center, up, down, left, right, vertical, horizontal, inside, outside" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do 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 limiting the present invention. In addition, the terms "first, second, third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0089] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0091] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A material feeding and conveying device for grinding equipment with screening function, characterized in that: The invention comprises a conveying pipe (1), a feeding bin (4) arranged at one end of the conveying pipe (1), and a discharge port (5) arranged at the other end of the feeding bin (4); a rotating shaft (3) is rotatably arranged inside the conveying pipe (1), a driving source for driving the rotating shaft (3) to rotate is arranged at one end of the conveying pipe (1), and a spiral blade (2) is fixedly connected to the outside of the rotating shaft (3); The spiral blade (2) comprises a material receiving plate (21) fixedly connected to a rotating shaft (3), a screen (22) fixedly connected to one side of the material receiving plate (21), a cavity (23) arranged between the material receiving plate (21) and the screen (22), an opening (24) provided on the material receiving plate (21), and a bucket (25) fixedly connected to one side of the opening (24); when the spiral blade (2) rotates to transport materials, the bucket (25) allows the materials to enter the cavity (23) so as to be screened through the screen (22).

2. The grinding equipment feeding and conveying device with screening function according to claim 1, characterized in that: The bucket (25) is located in the middle of the material receiving plate (21).

3. The grinding equipment feeding and conveying device with screening function according to claim 2 is characterized in that: The bucket (25) comprises a plurality of fixing rods (251) fixedly connected to the side of the opening (24); wherein a spacing (252) is provided between the plurality of fixing rods (251).

4. The grinding equipment feeding and conveying device with screening function according to claim 1, characterized in that: The discharge port (5) comprises a first outlet (51) opened at the bottom of the conveying pipe (1) and a second outlet (52) opened at one end of the conveying pipe (1); wherein the second outlet (52) is in communication with the cavity (23).

5. The grinding equipment feeding and conveying device with screening function according to claim 1, characterized in that: The rotating shaft (3) and the material receiving plate (21) are provided with guide grooves (6) for use together, and the screen (22) is slidably arranged inside the guide grooves (6).

6. The grinding equipment feeding and conveying device with screening function according to claim 1, characterized in that: The feed bin (4) is provided with a star-shaped feeder (7).

7. The grinding equipment feeding and conveying device with screening function according to claim 1, characterized in that: A plurality of the openings (24) are provided, and the plurality of the openings (24) are centrally arranged at one end of the material receiving plate (21) close to the material feeding bin (4).

8. The grinding equipment feeding and conveying device with screening function according to claim 1, characterized in that: A vibration motor (8) is arranged outside the conveying pipe (1).

9. A method for using the grinding equipment feeding and conveying device with screening function as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S01, loading; loading materials into the interior of the feed bin (4), so that the materials evenly enter the conveying pipe (1) through the star-shaped feeder (7); S02, feeding; the driving source drives the rotating shaft (3) to rotate, so that the spiral blade (2) rotates to transport the material; S03, screening; after the spiral blade (2) rotates, the material is shoveled into the interior of the cavity (23) through the bucket (25), and the material is screened through the screen (22); specifically, the material that can pass through the screen (22) is discharged from the interior of the cavity (23), and the material that cannot pass through the screen (22) is screened into the interior of the cavity (23); S04, discharging; the material located outside the cavity (23) is discharged through the first outlet (51), and the material located inside the cavity (23) is discharged through the second outlet (52).

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