CN219766000U - Rolling ball screening device for preparing alumina catalyst carrier - Google Patents

Abstract

The utility model relates to the technical field of alumina catalyst carrier screening, and discloses a rolling ball screening device for preparing an alumina catalyst carrier, which comprises a supporting frame, wherein a screening box is obliquely arranged at the upper end of the supporting frame, two groups of installation frames are fixedly arranged at the lower end of the screening box, a damping spring is connected to the upper end of the supporting frame, the upper end of the damping spring is connected with the installation frames, a hopper is arranged at the upper end of the screening box, a conveying pipe is fixedly arranged at the lower end of the hopper, sliding grooves are formed at the two ends of the inner wall of the screening box, a screening device is internally arranged in the screening box, a filtering hole is formed in the surface of the screening device, the two ends of the screening device are in sliding connection with the sliding grooves, a driving motor is fixedly arranged at one end of the screening box, and one end of the screening device is fixedly connected with the driving motor. According to the utility model, by arranging the screening device, the blocked rolling balls in the screening holes can be vibrated out to participate in screening again, so that the blocking of the alumina rolling balls on the screening holes is avoided, and the vibration screening efficiency is improved to a certain extent.

Description

Rolling ball screening device for preparing alumina catalyst carrier

Technical Field

The utility model relates to the technical field of alumina catalyst carrier screening, in particular to a rolling ball screening device for preparing an alumina catalyst carrier.

Background

Alumina supports, which are white powdery or shaped alumina solids, are the most widely used class of catalyst supports, accounting for about 70% of the commercially supported catalysts. Alumina has various forms and different properties, wherein the common alumina catalyst carrier has hollow column shape, rolling sphere shape and the like, and a screening device is needed in the production process to distinguish the produced rolling spheres.

The existing alumina ball screening device is used for paving alumina balls on the surface of a filter screen to perform vibration screening, and has the problems that the alumina balls are paved on the surface of the filter screen to easily cause the raw materials of the alumina balls to block meshes on the surface of the filter screen, so that the efficiency of vibration screening is reduced to a certain extent.

Disclosure of Invention

The utility model mainly solves the technical problems in the prior art and provides a rolling ball screening device for preparing an alumina catalyst carrier.

In order to achieve the above purpose, the utility model adopts the following technical scheme that the rolling ball screening device for preparing the alumina catalyst carrier comprises a supporting frame, wherein the upper end of the supporting frame is obliquely provided with a screening box, the lower end of the screening box is fixedly provided with two groups of installation racks, the upper end of the supporting frame is connected with a damping spring, the upper end of the damping spring is connected with the installation racks, the upper end of the screening box is provided with a charging hopper, the lower end of the charging hopper is fixedly provided with a conveying pipe, the two ends of the inner wall of the screening box are provided with sliding grooves, the screening box is internally provided with a screening device, the screening device divides the screening box into an upper screening space and a lower screening space, the surface of the screening device is provided with filtering holes, the two ends of the screening device are in sliding connection with the sliding grooves, one end of the screening box is fixedly provided with a driving motor, and one end of the screening device is fixedly connected with the driving motor.

Further, sieving mechanism includes the screening plate, screening plate and screening incasement portion looks adaptation, screening plate slope installation at screening incasement portion, screening plate upper end is equipped with the screening hole, and the screening plate is installed in the slider for the position of spout, and slider slidable mounting is inside the spout, and the axis of rotation is installed in the rotation of screening plate upper end, axis of rotation one end and driving motor output fixed connection, two sets of eccentric wheels of axis of rotation outside fixedly connected with, eccentric wheel lower extreme and screening plate contact.

Further, buffer springs are respectively arranged at the upper end and the lower end of the sliding block, and the other ends of the buffer springs are fixedly connected with the sliding grooves.

Further, screening case slope decurrent one end demountable installation has the collecting plate, and collecting plate one side is equipped with the finished product export, and the finished product export is linked together with sieving mechanism upper end cavity.

Further, the lower end of the finished product outlet is provided with a defective product outlet which is communicated with the cavity at the lower end of the screening device.

Further, screening case upper end fixed mounting has the shield, shield and screening case looks adaptation.

Advantageous effects

The utility model provides a rolling ball screening device for preparing an alumina catalyst carrier, which has the following beneficial effects:

(1) This a spin sieving mechanism for preparing alumina catalyst carrier through setting up sieving mechanism, drives the eccentric wheel through driving motor and rotates, promotes the screening board and reciprocates, can vibrate out the spin of the inside jam of screening hole, participate in the screening again, avoids the alumina spin to block up the screening hole, has promoted vibration screening's efficiency to a certain extent.

(2) This a spin sieving mechanism for preparing alumina catalyst carrier through setting up the shield in screening case upper end, can protect the screening case, avoids in screening process, and external dust falls into screening incasement portion, causes the spin to pollute.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, proportional changes, or adjustments of size, which do not affect the efficacy of the utility model or the objects achieved, should fall within the scope of the utility model.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram illustrating the internal structure analysis of the present utility model;

fig. 3 is a schematic diagram of the screening apparatus according to the present utility model.

Legend description:

1. a support frame; 2. a screening box; 3. a mounting frame; 4. a damping spring; 5. a hopper; 6. a delivery tube; 7. a finished product outlet; 8. a defective product outlet; 9. a chute; 10. a screening device; 11. a driving motor; 12. a dust cover; 13. a screening plate; 14. screening holes; 15. a slide block; 16. a buffer spring; 17. a rotating shaft; 18. an eccentric wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: a rolling ball screening device for preparing alumina catalyst carrier, as shown in fig. 1-2, comprising a supporting frame 1, wherein the upper end of the supporting frame 1 is obliquely provided with a screening box 2, the screening box 2 is a rectangular shell with an opening at the upper end, the lower end of the screening box 2 is provided with two groups of mounting frames 3, the mounting frames 3 are fixedly arranged with the screening box 2 through bolts, four corners of the upper end of the supporting frame 1 are fixedly connected with damping springs 4, the upper ends of the damping springs 4 are fixedly connected with the mounting frames 3, the upper end of the screening box 2 is provided with a loading hopper 5, the loading hopper 5 is a hopper-shaped hollow shell, the lower end of the loading hopper 5 is fixedly connected with two sides of the screening box 2, the center of the lower end of the loading hopper 5 is fixedly provided with a conveying pipe 6, the outer side of the conveying pipe 6 is provided with a control switch, the upper end of the conveying pipe 6 is communicated with the loading hopper 5, the two ends of the inner wall of the screening box 2 are respectively provided with sliding grooves 9, screening box 2 internally mounted has screening device 10, screening device 10 will screen box 2 inside is two upper and lower screening spaces, the filtration pore has been seted up on screening device 10 surface, screening device 10 both ends respectively with spout 9 sliding connection, screening box 2 one end has driving motor 11 through bolt fixed mounting, screening device 10 one end and driving motor 11 output fixed connection, driving motor 11 output can drive screening device 10 and carry out vibration screening, screening box 2 decurrent one end demountable installation has the collecting plate, collecting plate one side has seted up finished product export 7, finished product export 7 is linked together with screening device 10 upper end cavity, finished product export 7 lower extreme is provided with defective item export 8, defective item export 8 is linked together with screening device 10 lower extreme cavity, screening box 2 upper end is provided with shield 12, shield 12 lower extreme and screening box 2 looks adaptation, the dust cover 12 is fixedly arranged at the upper end of the screening box 2 through bolts.

Further, as shown in fig. 3, screening device 10 includes screening plate 13, screening plate 13 is rectangular plate structure, screening plate 13 and screening case 2 inner wall looks adaptation, screening plate 13 slope sets up inside screening case 2, screening hole 14 convenient to screen has been seted up to screening plate 13 upper end, screening plate 13 has slider 15 for the both sides of spout 9 respectively fixed mounting, slider 15 slidable mounting is inside spout 9, slider 15 upper and lower extreme respectively fixed mounting has buffer spring 16, buffer spring 16 keeps away from slider 15's one end and spout 9 fixed connection, screening plate 13 upper end is close to driving motor 11's position and is provided with axis of rotation 17, axis of rotation 17 both ends are rotated with screening case 2 and are connected, axis of rotation 17 one end passes screening case 2 and driving motor 11 output fixed connection, axis of rotation 17 outside fixedly connected with two sets of eccentric wheels 18, eccentric wheel 18 lower extreme and screening plate 13 surface contact.

The working principle of the utility model is as follows: when the screening box is used, firstly, alumina rolling balls to be screened are placed into the hopper 5, after the loading is completed, a power supply of the driving motor 11 is started, a control switch of the conveying pipe 6 is opened, the conveying pipe 6 guides the rolling balls in the hopper 5 into the upper end of the screening plate 13, screening is carried out through the screening holes 14, inferior goods with small rolling ball diameters fall into the lower end of the screening plate 13 and are discharged through the inferior goods outlet 8, the rolling balls with diameters meeting requirements are discharged through the finished product outlet 7, in the screening process, the output end of the driving motor 11 drives the eccentric wheel 18 to rotate through the rotating shaft 17, due to different diameters of two ends of the eccentric wheel 18, the eccentric wheel 18 can push the screening plate 13 to slide up and down in the rotating process, the sliding blocks 15 and the buffer springs 16 mounted at two ends of the screening plate 13 can limit the screening plate 13, the screening plate 13 can shake steadily along with the up-down mixing of the screening plate 13, the rolling balls blocking the screening holes 14 can be vibrated out, the blocking of the screening holes 14 can be avoided, the efficiency of vibration screening can be improved to a certain extent, the screening box 2 can be protected from the dust can fall into the screening box 2, and the screening box can be protected in the screening process. Through setting up sieving mechanism 10, drive eccentric wheel 18 through driving motor 11 and rotate, promote screening board 13 upper and lower slip, can vibrate out the inside spin of jam of screening hole 14, participate in the screening again, avoid the alumina spin to block up screening hole 14, promoted vibration screening's efficiency to a certain extent.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a spin sieving mechanism for preparing alumina catalyst carrier, includes support frame (1), screening case (2) are installed to support frame (1) upper end slope, screening case (2) lower extreme fixed mounting has two sets of mounting bracket (3), support frame (1) upper end is connected with damping spring (4), and damping spring (4) upper end is connected with mounting bracket (3), its characterized in that: hopper (5) are installed to screening case (2) upper end, hopper (5) lower extreme fixed bolster (6) have, screening case (2) inner wall both ends are equipped with spout (9), screening case (2) internally mounted has sieving mechanism (10), and sieving mechanism (10) are two screening spaces about with screening case (2) internal portion, and sieving mechanism (10) surface is equipped with the filtration pore, sieving mechanism (10) both ends and spout (9) sliding connection, screening case (2) one end fixed mounting has driving motor (11), sieving mechanism (10) one end and driving motor (11) fixed connection.

2. A roll screen apparatus for preparing alumina catalyst supports as set forth in claim 1, wherein: screening device (10) are including screening board (13), inside looks adaptation of screening board (13) and screening case (2), and screening board (13) slope is installed inside screening case (2), and screening board (13) upper end is equipped with screening hole (14), slider (15) are installed for the position of spout (9) to screening board (13), slider (15) slidable mounting is inside spout (9), rotation axis (17) are installed in rotation of screening board (13) upper end, rotation axis (17) one end and driving motor (11) output fixed connection, two sets of eccentric wheels (18) of rotation axis (17) outside fixedly connected with, eccentric wheel (18) lower extreme and screening board (13) contact.

3. A roll screen apparatus for preparing alumina catalyst supports as set forth in claim 2, wherein: buffer springs (16) are respectively arranged at the upper end and the lower end of the sliding block (15), and the other ends of the buffer springs (16) are fixedly connected with the sliding grooves (9).

4. A roll screen apparatus for preparing alumina catalyst supports as set forth in claim 1, wherein: the screening box (2) slope decurrent one end demountable installation has the collecting plate, and collecting plate one side is equipped with finished product export (7), and finished product export (7) are linked together with screening device (10) upper end cavity.

5. A roll screen apparatus for preparing an alumina catalyst support as set forth in claim 4, wherein: the lower end of the finished product outlet (7) is provided with a defective product outlet (8), and the defective product outlet (8) is communicated with a cavity at the lower end of the screening device (10).

6. A roll screen apparatus for preparing alumina catalyst supports as set forth in claim 1, wherein: the screening box (2) upper end fixed mounting has shield (12), shield (12) and screening box (2) looks adaptation.