Multi-stage screening device for compact fused alumina

Abstract

The utility model relates to a compact fused corundum multistage screening device which comprises a vertically-through annular shell, a vibratable spiral disc is arranged in the shell, the two ends of the spiral disc are located on the same vertical plane, sealing plates are fixed to the two ends of the spiral disc respectively, and a plurality of partition plates are fixed in the spiral disc. The spiral disc is internally divided into a plurality of screening areas through the multiple partition plates, a plurality of screening holes are formed in the spiral disc, and the diameters of the screening holes in the different screening areas are different. The spiral disc is made to vibrate, compact fused corundum in the screening area with the highest position height is screened through the screening holes, small-particle compact fused corundum is discharged through the corresponding discharging opening, and therefore collection is convenient, large-particle compact fused corundum passes through the through holes in the partition plate and enters the next screening area to be screened, and the screening efficiency is improved. Due to the fact that the spiral disc is arranged in the spiral shape, the dense fused corundum slides downwards along the spiral disc, and classified screening is conducted through the different screening areas.

Description

Technical Field

[0001] The utility model relates to a dense corundum technology, in particular to a dense fused corundum multi-stage screening device. Background Art

[0002] Dense fused corundum is a high-grade refractory material with a main crystal phase greater than 96% and a porosity of less than 4%. It has good acid and alkali resistance, good wear resistance, corrosion resistance and volume stability at high temperatures. It is widely used in steel metallurgy, petrochemicals, building materials and ceramics and other industries. It is mainly used as refractory ramming material for blast furnace tapping channels and aggregate for castables. It is also an excellent material for making steelmaking shrouds, slides and various corundum bricks. During the formation process, due to the influence of various factors, the size of dense corundum is not the same, so the dense corundum needs to be screened.

[0003] The current dense corundum screening device is not convenient for multi-stage screening during the screening process, resulting in a wide range of fineness of the screened dense corundum and inconvenience in classifying and collecting the screened dense corundum. Utility Model Content

[0004] The purpose of the utility model is to provide a dense fused corundum multi-stage screening device for solving the problem that the existing dense corundum screening device is inconvenient for multi-stage screening and is inconvenient for classifying and collecting the screened dense corundum.

[0005] In order to solve the above problems, the utility model provides a dense electric-fused corundum multi-stage screening device, including a ring-shaped shell that is through from top to bottom, a vibrating spiral disk is provided inside the shell, and the two ends of the spiral disk are located on the same vertical plane. The two ends of the spiral disk are respectively fixed with sealing plates, and a plurality of partitions are fixed inside the spiral disk. The plurality of partitions separate the spiral disk into a plurality of screening zones, and a plurality of sieve holes are provided on the spiral disk. The apertures of the sieve holes in different screening zones are different. The apertures of the sieve holes in the screening zones with higher positions are smaller. The lower sides of the plurality of screening zones are respectively fixed with discharge ports, and the sides of the plurality of partitions close to the center of the spiral disk are respectively provided with through holes.

[0006] The dense fused corundum multi-stage screening device provided by the utility model also has the following technical features:

[0007] Furthermore, a connecting tube is provided on the outer side of the spiral disk, the inner wall of the connecting tube is fixedly connected to the spiral disk via a plurality of connecting rods, and the outer side of the connecting tube is fixedly connected to the inside of the shell via a plurality of first vibrating screen springs.

[0008] Furthermore, a cross rod is fixed to the bottom of the connecting cylinder, and a vibration motor is fixed at the center of the cross rod.

[0009] Furthermore, the bottom of the discharge port is fixedly connected to a shrinking pipe.

[0010] Furthermore, a cross bracket is fixedly connected to the inner wall of the shell, the cross bracket is located below the cross rod, and the upper side of the cross bracket is fixedly connected to the cross rod through a plurality of second vibrating screen springs.

[0011] Furthermore, a cover is provided on the top of the shell, a feed pipe is provided on the cover, the feed pipe is located above the top of the spiral disk, and a plurality of legs are fixed to the bottom of the shell.

[0012] The utility model has the following beneficial effects: dense fused corundum to be screened is put into the screening area with the highest position at the top of the spiral disk, and the dense fused corundum in the screening area with the highest position is screened through the sieve holes by vibrating the spiral disk, and small particles of dense fused corundum are discharged through the corresponding discharge port, so as to be convenient for collection, while large particles of dense fused corundum pass through the through holes at the partition, so that it enters the next screening area for screening. Since the spiral disk is arranged in a spiral shape, the dense fused corundum slides downward along the spiral disk and is graded and screened through different screening areas, and the dense fused corundum screened in the corresponding screening area is discharged through the corresponding discharge port, so that the device is convenient for multi-stage screening, avoids the fineness range of the screened dense corundum being too large, and facilitates the classified collection of the screened dense corundum. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an axonometric diagram of an embodiment of the present utility model;

[0014] Figure 2 This is an axonometric view of the embodiment of the utility model after removing the cover and the shell;

[0015] Figure 3 A perspective view of a spiral disk in an embodiment of the present utility model;

[0016] Figure 4 This is a three-dimensional diagram of the embodiment of the utility model after removing the cover and the shell;

[0017] Figure 5 It is a right side cutaway view of a broken embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0019] like Figures 1 to 5In the embodiment of the dense electric fused corundum multi-stage screening device of the utility model shown, the dense electric fused corundum multi-stage screening device includes a shell 1 that is through-through and annular, a vibrating spiral disk 2 is provided inside the shell 1, and the two ends of the spiral disk 2 are located on the same vertical plane. Sealing plates 3 are fixed to the two ends of the spiral disk 2, and a plurality of partitions 4 are fixed inside the spiral disk 2. The plurality of partitions 4 separate the spiral disk 2 into a plurality of screening areas 5, and a plurality of sieve holes 6 are provided on the spiral disk 2. The apertures of the sieve holes 6 in different screening areas 5 are different. The apertures of the sieve holes 6 in the screening areas 5 with higher positions are smaller. The lower sides of the plurality of screening areas 5 are respectively fixed with discharge ports 7, and a plurality of partitions 4 are respectively provided with through holes 8 on one side near the center of the spiral disk 2. By placing the material to be screened at the top of the spiral disk 2 The dense fused corundum is put into the screening area 5 with the highest position. By vibrating the spiral disk 2, the dense fused corundum in the screening area 5 with the highest position is screened through the sieve hole 6, and the small-particle dense fused corundum is discharged through the corresponding discharge port 7, so as to be convenient for collection, while the large-particle dense fused corundum passes through the through hole 8 at the partition 4, so that it enters the next screening area 5 for screening. Since the spiral disk 2 is arranged in a spiral shape, the dense fused corundum slides downward along the spiral disk 2 and is graded and screened through different screening areas 5. The dense fused corundum screened in the corresponding screening area 5 is discharged through the corresponding discharge port 7, so that the device is convenient for multi-stage screening, avoids the fineness range of the screened dense corundum being too large, and is convenient for classifying and collecting the screened dense corundum.

[0020] In one embodiment of the present application, preferably, a connecting tube 9 is provided on the outer side of the spiral disk 2, the inner wall of the connecting tube 9 is fixedly connected to the spiral disk 2 via a plurality of connecting rods 10, and the outer side of the connecting tube 9 is fixedly connected to the interior of the shell 1 via a plurality of first vibrating screen springs 11. By fixing the spiral disk 2 and the connecting tube 9, the vibration of the connecting tube 9 can drive the vibration of the spiral disk 2.

[0021] In one embodiment of the present application, preferably, a cross rod 12 is fixed to the bottom of the connecting tube 9, and a vibration motor 13 is fixed at the center of the cross rod 12. Starting the vibration motor 13 can drive the cross rod 12, the connecting tube 9 and the spiral disk 2 to vibrate.

[0022] In one embodiment of the present application, preferably, the bottom of the discharge port 7 is fixedly connected with a shrinking tube 14, and the shrinking tube 14 facilitates the collection of the dense corundum discharged from the discharge port 7 to a certain location.

[0023] In one embodiment of the present application, preferably, a cross bracket 15 is fixedly connected to the inner wall of the shell 1, and the cross bracket 15 is located below the cross rod 12. The upper side of the cross bracket 15 is fixedly connected to the cross rod 12 through multiple second vibrating screen springs 16. The cross bracket 15, the second vibrating screen spring 16 and the first vibrating screen spring 11 play a role in limiting the spiral disk 2, and a gap is left between the multiple shrinking tubes 14 and the cross bracket 15.

[0024] In one embodiment of the present application, preferably, a cover body 17 is provided on the top of the shell 1, and a feed pipe 18 is provided on the cover body 17. The feed pipe 18 is located above the top of the spiral disk 2, and a plurality of legs are fixed to the bottom of the shell 1. By feeding the material through the feed pipe 18, the dense electric-fused corundum can be fed into the top of the screening area 5 with the highest position.

[0025] When the utility model is in use, the material is fed through the feed pipe 18, so that the dense electric fused corundum can be put into the top of the screening area 5 with the highest position. Starting the vibration motor 13 can drive the cross rod 12, the connecting tube 9 and the spiral disk 2 to vibrate. The cross bracket 15, the second vibrating screen spring 16 and the first vibrating screen spring 11 play the role of limiting the spiral disk 2, and can control the vibration range of the spiral disk 2. The spiral disk 2 vibrates, so that the dense electric fused corundum in the screening area 5 with the highest position is screened through the sieve hole 6, and the small particles of dense electric fused corundum are discharged through the corresponding discharge port 7. The shrinking pipe 14 is convenient for discharging the discharge port 7 The discharged dense corundum is collected at a certain position, and the large-particle dense fused corundum passes through the through hole 8 at the partition 4 and enters the next screening area 5 for screening. Since the spiral disk 2 is arranged in a spiral shape, the dense fused corundum slides downward along the spiral disk 2 and is graded and screened through different screening areas 5. The dense fused corundum screened in the corresponding screening area 5 is discharged through the corresponding discharge port 7, which makes the device convenient for multi-stage screening, avoids the fineness range of the screened dense corundum being too large, and facilitates the classification and collection of the screened dense corundum. Collection boxes can be placed under different shrinking tubes 14 for collection.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A dense fused corundum multi-stage screening device, comprising a ring-shaped shell (1) that is continuous from top to bottom, characterized in that: A vibrating spiral disk (2) is provided inside the shell (1), and both ends of the spiral disk (2) are located on the same vertical plane. Sealing plates (3) are fixed to both ends of the spiral disk (2). A plurality of partitions (4) are fixed inside the spiral disk (2), and the plurality of partitions (4) separate the spiral disk (2) into a plurality of screening zones (5). A plurality of sieve holes (6) are provided on the spiral disk (2), and the apertures of the sieve holes (6) in different screening zones (5) are different. The apertures of the sieve holes (6) in the screening zones (5) with higher positions are smaller. A feed opening (7) is fixedly connected to the lower sides of the plurality of screening zones (5), and a through hole (8) is provided on one side of the plurality of partitions (4) near the center of the spiral disk (2).

2. The dense fused corundum multi-stage screening device according to claim 1, characterized in that: A connecting cylinder (9) is provided on the outside of the spiral disk (2); the inner wall of the connecting cylinder (9) is fixedly connected to the spiral disk (2) via a plurality of connecting rods (10); and the outer side of the connecting cylinder (9) is fixedly connected to the inside of the housing (1) via a plurality of first vibrating screen springs (11).

3. The dense fused corundum multi-stage screening device according to claim 2, characterized in that: A cross rod (12) is fixed to the bottom of the connecting cylinder (9), and a vibration motor (13) is fixed at the center of the cross rod (12).

4. The dense fused corundum multi-stage screening device according to claim 1, characterized in that: The bottom of the discharge port (7) is fixedly connected to a shrinking pipe (14).

5. The dense fused corundum multi-stage screening device according to claim 3, characterized in that: A cross bracket (15) is fixedly connected to the inner wall of the housing (1), the cross bracket (15) is located below the cross rod (12), and the upper side of the cross bracket (15) is fixedly connected to the cross rod (12) via a plurality of second vibrating screen springs (16).

6. The dense fused corundum multi-stage screening device according to claim 1, characterized in that: The top of the shell (1) is provided with a cover (17), the cover (17) is provided with a feed pipe (18), the feed pipe (18) is located above the top of the spiral disk (2), and a plurality of legs are fixed to the bottom of the shell (1).

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