Vibration screening and grading device

Abstract

The utility model discloses a vibration screening and grading device which comprises a base, supports are installed on the two sides of the top of the base, feeding structures are installed on the supports, controllers are installed on the side faces of the supports, cylindrical through holes are formed in the base, a lower screening disc is arranged on the base, and a plurality of springs are installed between the lower screening disc and the base. A vibration motor is installed at the bottom of the lower sieve tray and connected with a controller, an upper sieve tray is installed above the lower sieve tray, a round cover is installed above the upper sieve tray, and the round cover is connected with the feeding structure through a connecting pipe. According to the utility model, the catalyst in the material storage box is conveyed to the upper sieve tray for sieving through the matching of the adjacent partition plates, so that the automatic feeding of the catalyst is realized, and the round cover on the upper sieve tray can effectively isolate powder raised during the vibration of the sieve tray, so that the powder is prevented from being sucked by workers during working; the vibrating motor drives the upper sieve tray and the lower sieve tray to vibrate, so that large-particle catalysts are left on the upper sieve tray, small-particle catalysts fall on the lower sieve tray, and fine grading of the catalysts is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screening and grading, in particular to a vibrating screening and grading device. BACKGROUND

[0002] The catalyst usually refers to the substance that improves the reaction rate without changing the total standard gibbs free energy change of reaction, and can also be expressed as the substance that can improve the chemical reaction rate without changing the chemical equilibrium in the chemical reaction, and the mass and chemical properties of the substance itself do not change before and after the chemical reaction.

[0003] In the production process of the catalyst, the catalyst particles usually need to be screened and graded, and the catalysts of different particle sizes are separated, and in the prior art, the vibration screen is usually used to screen and grade the catalyst particles, however, the existing vibration screen has limited working capacity of the sieve disc, when the amount of catalyst to be screened is large, workers need to batch feed the catalyst, which increases the workload of workers, and when feeding, a large amount of powder will be raised under the vibration of the sieve disc, workers are easy to inhale the raised powder into the body, which is harmful to the health of workers. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiencies of prior art, and provides a vibrating screening and grading device to solve the problems in the background art.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A vibrating screening and grading device, including the base, the top of the base is installed on both sides support, the support is installed with the feeding structure, the side of support is installed with the controller, the base is equipped with the cylindrical through hole, the base is provided with the lower sieve disc, the lower sieve disc is located below the feeding structure, the lower sieve disc is installed with a plurality of springs that are annularly arranged between the base, the bottom of the lower sieve disc is installed with the vibration motor, the vibration motor is located in the cylindrical through hole, the vibration motor is connected with the controller, the upper side of the lower sieve disc is installed with the upper sieve disc through the flange plate, the upper side of the upper sieve disc is installed with the round cover through the flange plate, the round cover is connected with the feeding structure through the connecting pipe.

[0007] As a preferred solution of the vibration screening and grading device, the feeding structure includes a storage box, a box cover, a funnel, a reduction motor, a rotating shaft and a partition. The box cover is installed on the top of the storage box through a hinge, the funnel is installed at the bottom of the storage box, the outlet of the funnel is connected to the connecting pipe, the reduction motor is installed on the right side wall of the storage box, the reduction motor is connected to the controller, the top of the storage box is provided with an inner cavity for storing the catalyst, and the interior of the storage box is also provided with a transport cavity, the transport cavity is in the shape of a horizontal cylinder, and openings are provided at the upper and lower ends of the transport cavity, wherein the upper end opening of the transport cavity is connected to the bottom of the inner cavity, and the lower end opening of the transport cavity is connected to the funnel, and a rotating shaft is rotatably installed between the left and right inner walls of the transport cavity, and the rotating shaft is on the central axis of the transport cavity, the rotating shaft is connected to the output shaft of the reduction motor, and six partitions distributed in a ring array are installed on the rotating shaft.

[0008] As a preferred solution of the vibration screening and grading device, a discharge port is provided on the side of the lower sieve plate.

[0009] As a preferred solution of the vibration screening and grading device, a discharge port is provided on the side of the upper sieve plate, and the bottom surface of the upper sieve plate is a sieve mesh.

[0010] As a preferred solution of the vibration screening and grading device, the connecting pipe uses a bellows.

[0011] As a preferred solution for the vibration screening and grading device, the length of the partition is equal to the distance from the rotating shaft to the arc-shaped inner wall of the conveying chamber, and the distance between the top edges of two adjacent partitions is greater than or equal to the upper and lower openings of the conveying chamber.

[0012] Beneficial effects of the utility model:

[0013] The vibrating screening and grading device of the present invention can control the rotating shaft to drive the partition to rotate by arranging a reduction motor, and then the catalyst stored in the storage box is sent to the funnel through the cooperation of adjacent partitions, and finally the catalyst is sent to the upper sieve plate for screening through the connecting pipe connected between the funnel and the round cover, thereby realizing automatic loading of the catalyst. By arranging the round cover on the upper sieve plate, the powder raised when the sieve plate vibrates can be effectively isolated, thereby avoiding workers from inhaling it while working. At the same time, by arranging a vibration motor to drive the upper and lower sieve plates to vibrate, large particles of catalyst will remain on the sieve of the upper sieve plate and be discharged from the discharge port of the upper sieve plate, while small particles of catalyst will fall onto the lower sieve plate and be discharged from the discharge port of the lower sieve plate, thereby realizing fine grading of the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0015] Figure 1 It is a schematic diagram of the overall structure of the vibration screening and grading device described in the present utility model.

[0016] Figure 2 It is a schematic cross-sectional view of the vibration screening and grading device described in the present invention.

[0017] Figure 3 It is a structural schematic diagram of the feeding structure described in the utility model.

[0018] Figure 4 It is a schematic cross-sectional view of the feeding structure of the present invention.

[0019] In the picture:

[0020] 1. Base; 1-1. Cylindrical through hole; 2. Bracket; 3. Feeding structure; 31. Storage box; 31-1. Transport chamber; 32. Box cover; 33. Funnel; 34. Reducer motor; 35. Rotating shaft; 36. Partition; 4. Lower sieve plate; 5. Spring; 6. Upper sieve plate; 7. Round cover; 8. Connecting pipe; 9. Controller; 10. Vibration motor. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the description of this utility model, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term 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 an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] like Figure 1 and Figure 2As shown, the utility model provides a vibrating screening and grading device, including a base 1, brackets 2 are installed on both sides of the top of the base 1, a feeding structure 3 is installed on the bracket 2, a controller 9 is installed on the side of the bracket 2, a cylindrical through hole 1-1 is opened on the base 1, a lower sieve plate 4 is provided on the base 1, the lower sieve plate 4 is located below the feeding structure 3, a plurality of springs 5 ​​distributed in a ring array are installed between the lower sieve plate 4 and the base 1, a vibration motor 10 is installed at the bottom of the lower sieve plate 4, the vibration motor 10 is located in the cylindrical through hole 1-1, the vibration motor 10 is connected to the controller 9, the controller 9 can control the opening and closing of the vibration motor 10, an upper sieve plate 6 is installed above the lower sieve plate 4 through a flange, a round cover 7 is installed above the upper sieve plate 6 through a flange, and starting the vibration motor 10 can drive the upper sieve plate 6 and the lower sieve plate 4 to rotate synchronously. Vibration, the round cover 7 is covered on the upper sieve plate 6 to isolate the powder raised when the sieve plate screens the catalyst particles. The round cover 7 is connected to the feeding structure 3 through a connecting pipe 8. The feeding structure 3 can automatically put in the catalyst particles to be screened, and then the catalyst particles can fall onto the upper sieve plate 6 along the connecting pipe 8. The sides of the lower sieve plate 4 and the upper sieve plate 6 are both provided with discharge ports. The bottom surface of the upper sieve plate 6 is a sieve. The connecting pipe 8 uses a bellows. When the upper sieve plate 6 and the lower sieve plate 4 vibrate synchronously, large particles of catalyst will remain on the sieve of the upper sieve plate 6 and finally be discharged from the discharge port of the upper sieve plate 6. Small particles of catalyst will fall onto the lower sieve plate 4 and finally be discharged from the discharge port of the lower sieve plate 4. The number of upper sieve plates 6 can be appropriately added or reduced according to actual conditions, and the number of meshes on the upper sieve plate 6 can also be adjusted according to actual conditions.

[0026] like Figure 3 and Figure 4 As shown, the feeding structure 3 includes a storage box 31, a box cover 32, a funnel 33, a reduction motor 34, a rotating shaft 35 and a partition 36. The box cover 32 is installed on the top of the storage box 31 through a hinge, and the funnel 33 is installed at the bottom of the storage box 31. The outlet of the funnel 33 is connected to the connecting pipe 8. The reduction motor 34 is installed on the right side wall of the storage box 31. The reduction motor 34 is connected to the controller 9. The controller 9 can control the opening and closing of the reduction motor 34 and the speed of the output shaft of the reduction motor 34;

[0027] The top of the storage box 31 is provided with an inner cavity for storing the catalyst, and the bottom of the inner cavity can be designed to be sloped. The interior of the storage box 31 is also provided with a transport chamber 31-1, which is in the shape of a horizontal cylinder, and has openings at both the upper and lower ends of the transport chamber 31-1, wherein the upper end opening of the transport chamber 31-1 is connected to the bottom of the inner cavity, and the lower end opening of the transport chamber 31-1 is connected to the funnel 33. Under the action of gravity, the catalyst stored in the inner cavity of the storage box 31 can enter the transport chamber 31-1. A rotating shaft 35 is rotatably installed between the left and right inner walls of the transport chamber 31-1, and the rotating shaft 35 is on the central axis of the transport chamber 31-1. The rotating shaft 35 is connected to the output shaft of the reduction motor 34, and a rotating shaft 35 is installed on the rotating shaft 35. Six partitions 36 are distributed in a circular array. The length of the partition 36 is equal to the distance from the rotating shaft 35 to the arc-shaped inner wall of the transport chamber 31-1. The distance between the top edges of two adjacent partitions 36 is greater than or equal to the upper and lower openings of the transport chamber 31-1. When the reduction motor 34 drives the partition 36 to rotate through the rotating shaft 35, the catalyst entering the transport chamber 31-1 can be delivered to the funnel 33 through the cooperation of the two adjacent partitions 36, and then the catalyst is allowed to enter the connecting pipe 8 through the funnel 33, and finally fall onto the screen of the upper sieve plate 6 through the connecting pipe 8. By controlling the speed of the output shaft of the reduction motor 34, the interval time of each loading of the feeding structure 3 can be controlled. The faster the output shaft speed, the shorter the loading interval time.

[0028] The working principle and use process of this utility model:

[0029] The vibrating screening and grading device of the present invention first opens the box cover 32, pours all the catalysts to be screened into the storage box 31, closes the box cover 32, and first turns on the vibration motor 10. The vibration motor 10 drives the upper and lower sieve plates to vibrate, and then turns on the reduction motor 34. When the reduction motor 34 drives the partition 36 to rotate through the rotating shaft 35, the catalyst entering the conveying chamber 31-1 can be sent to the funnel 33 through the cooperation of the two adjacent partitions 36, allowing the catalyst to enter the connecting pipe 8 through the funnel 33 and finally fall onto the sieve of the upper sieve plate 6 through the connecting pipe 8 for screening, thereby realizing automatic loading of the catalyst, and the powder raised during loading will be isolated by the round cover 7 to prevent workers from inhaling it. Large particles of catalyst will remain on the sieve of the upper sieve plate 6 and finally be discharged from the discharge port of the upper sieve plate 6. Small particles of catalyst will fall onto the lower sieve plate 4 and finally be discharged from the discharge port of the lower sieve plate 4. After screening, turn off the reduction motor 34 and the vibration motor 10.

[0030] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting but are provided for ease of description only.

Claims

1. A vibration screening and grading device, characterized in that: The invention comprises a base (1), wherein brackets (2) are installed on both sides of the top of the base (1), a feeding structure (3) is installed on the bracket (2), a controller (9) is installed on the side of the bracket (2), a cylindrical through hole (1-1) is opened on the base (1), a lower sieve plate (4) is provided on the base (1), the lower sieve plate (4) is located below the feeding structure (3), a plurality of springs (5) distributed in a ring array are installed between the lower sieve plate (4) and the base (1), a vibration motor (10) is installed at the bottom of the lower sieve plate (4), the vibration motor (10) is located in the cylindrical through hole (1-1), the vibration motor (10) is connected to the controller (9), an upper sieve plate (6) is installed above the lower sieve plate (4) through a flange, a round cover (7) is installed above the upper sieve plate (6) through a flange, and the round cover (7) is connected to the feeding structure (3) through a connecting pipe (8).

2. The vibration screening and grading device according to claim 1, characterized in that: The feeding structure (3) comprises a storage box (31), a box cover (32), a funnel (33), a reduction motor (34), a rotating shaft (35) and a partition (36). The box cover (32) is mounted on the top of the storage box (31) through a hinge. The funnel (33) is mounted on the bottom of the storage box (31). The outlet of the funnel (33) is connected to the connecting pipe (8). The reduction motor (34) is mounted on the right side wall of the storage box (31). The reduction motor (34) is connected to the controller (9). The top of the storage box (31) is provided with an inner cavity for storing the catalyst. The interior of the storage box (31) is also provided with a The transport chamber (31-1) is in the shape of a horizontal cylindrical column, and openings are provided at both the upper and lower ends of the transport chamber (31), wherein the upper end opening of the transport chamber (31-1) is connected to the bottom of the inner chamber, and the lower end opening of the transport chamber (31-1) is connected to the funnel (33). A rotating shaft (35) is rotatably installed between the left and right inner walls of the transport chamber (31-1), and the rotating shaft (35) is on the central axis of the transport chamber (31-1). The rotating shaft (35) is connected to the output shaft of the reduction motor (34), and six partitions (36) distributed in a ring array are installed on the rotating shaft (35).

3. The vibration screening and grading device according to claim 1, characterized in that: A discharge port is provided on the side of the lower sieve plate (4).

4. The vibration screening and grading device according to claim 1, characterized in that: A discharge port is provided on the side of the upper sieve plate (6), and the bottom surface of the upper sieve plate (6) is a sieve.

5. The vibration screening and grading device according to claim 1, characterized in that: The connecting pipe (8) uses a bellows.

6. The vibration screening and grading device according to claim 2, characterized in that: The length of the partition (36) is equal to the distance from the rotating shaft (35) to the arc-shaped inner wall of the transport chamber (31-1), and the distance between the top edges of two adjacent partitions (36) is greater than or equal to the upper and lower openings of the transport chamber (31-1).

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