Fine screening structure of rotary steel ball screening device

Abstract

The utility model discloses a fine screening structure of a rotary steel ball screening device, and belongs to the technical field of steel ball screening. Comprising a screening area, an inclined plate collecting area is arranged below the screening area, a spiral conveying shaft is installed in the screening area, the screening area comprises a small ball screening barrel and a middle ball screening barrel, the small ball screening barrel is fixedly connected with the middle ball screening barrel, and a left side plate is fixedly arranged on the side, away from the middle ball screening barrel, of the small ball screening barrel; a right side plate is fixedly arranged on the side, away from the small ball screening barrel, of the middle ball screening barrel, and supporting legs are fixedly arranged at the lower ends of the left side plate and the right side plate. According to the rotary steel ball fine screening structure, the fine screening barrel is arranged, the adjustable screening opening is formed in the bottom of the fine screening barrel, the movable blocks are driven by the adjusting plate to move in the movable groove, and the distance between the two movable blocks can be adjusted, so that the size of the screening opening can be adjusted, and the screening opening can be smaller than screening holes of the small ball screening barrel; and therefore, the small balls are screened in a finer manner to meet the use requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel ball screening technical field, concretely is a fine screen structure of rotary steel ball screening device. BACKGROUND

[0002] At present, steel ball as abrasive medium has been widely used in cement, Portland products, new building materials, refractory materials, chemical fertilizer, black and non-ferrous metal ore dressing, glass and ceramic production industry, the falling impact of steel ball will crush the material, complete the crushing grinding work of material. Steel ball will be worn and become smaller after a period of use, or local fragmentation, forming small ball, irregular ball, broken ball. These steel balls cannot completely work in the use process, affect the crushing grinding efficiency of steel ball, need to screen out this part of ball to be discarded, at the same time, screen out steel ball of different ball diameter to be reused.

[0003] Although the traditional screening equipment can complete the basic separation task, when facing the particles with small particle size difference, its efficiency and precision often cannot meet the requirements. In many application scenarios, especially for the screening of small steel balls and broken balls, the traditional screening mode is prone to particle jamming problem. When small steel balls are jammed at the screen opening, smaller broken balls and irregular steel balls can not pass through smoothly, which will directly affect the screening efficiency. UTILITARIAN CONTENT

[0004] The utility model discloses a fine screen structure of rotary steel ball screening device, by setting up fine screen barrel, and setting adjustable screen opening at the bottom of fine screen barrel, the interval of two movable blocks can be adjusted through the movable block in the movable groove under the drive of adjusting plate, thereby the size of screen opening can be adjusted, the screen opening can be smaller than the screen hole of small ball screening barrel, so that the small ball is screened more finely to meet the use demand, and the problems in the prior art are solved.

[0005] To achieve the above object, the utility model provides the following technical scheme: a fine screen structure of rotary steel ball screening device, including screening area, the lower portion of screening area is provided with inclined plate collection area, the inside of screening area is installed with spiral conveying shaft, and the screening area includes small ball screening barrel and medium ball screening barrel.

[0006] Preferably, one side of the left side plate is provided with a ball inlet, and one side of the right side plate is provided with a large ball outlet.

[0007] Preferably, one side of the fine sieve barrel is provided with a rotating ring, and the other side of the fine sieve barrel is provided with a fixed ring, and the fixed ring is connected with the small ball screening barrel through a bearing.

[0008] Preferably, the inside of the left side plate is provided with a sliding groove, and the rotating ring is slidingly connected with the sliding groove through a sliding block.

[0009] Preferably, the two sides of the sieve opening are provided with movable grooves, the inside of the movable groove is provided with a movable block, and the lower end of the movable block is fixedly provided with an adjusting plate.

[0010] Preferably, the front end and the rear end of the movable block are provided with positioning holes, and the movable block is fixedly connected with the fine sieve barrel through a positioning pin.

[0011] Compared with the prior art, the fine sieve structure of the rotating steel ball screening device has the following beneficial effects:

[0012] The fine sieve structure of the rotating steel ball screening device has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a whole structure schematic view of the utility model;

[0014] Fig. 2 It is a fine sieve barrel down sectional view of the utility model;

[0015] Fig. 3 It is a fine sieve barrel side sectional view of the utility model.

[0016] In the drawing: 1, ball inlet; 2, spiral conveying shaft; 3, inclined plate collection area; 4, screening area; 5, large ball outlet; 6, sieve opening; 401, small ball screening barrel; 402, medium ball screening barrel; 403, supporting leg; 404, fine sieve barrel; 405, rotating ring; 406, left side plate; 407, right side plate; 408, fixed ring; 409, sliding groove; 410, bearing; 601, movable groove; 602, movable block; 603, positioning hole; 604, adjusting plate. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made belong to the scope of protection of the present application.

[0018] Please refer to Figs. 1-3 The embodiment provides the following technical scheme:

[0019] A fine screen structure of a rotating steel ball classifier, comprising a screening zone 4, a chute collecting zone 3 arranged below the screening zone 4, the screened steel balls falling in the chute collecting zone 3 to be collected in the zone, and the broken balls and irregular steel balls being picked out manually, a spiral conveying shaft 2 arranged in the screening zone 4, the screening zone 4 comprising a small ball screening barrel 401 and a medium ball screening barrel 402, the small ball screening barrel 401 and the medium ball screening barrel 402 being provided with screen holes of different diameters, respectively, the small ball screening barrel 401 being fixedly connected with the medium ball screening barrel 402, a left side plate 406 being fixedly arranged on one side of the small ball screening barrel 401 away from the medium ball screening barrel 402, a right side plate 407 being fixedly arranged on one side of the medium ball screening barrel 402 away from the small ball screening barrel 401, and supporting legs 403 being fixedly arranged at lower ends of the left side plate 406 and the right side plate 407, the screening zone 4 being provided with a fine screening barrel 404 outside the small ball screening barrel 401, the fine screening barrel 404 being provided with a screen opening 6 at a bottom thereof, one side of the left side plate 406 being provided with a ball inlet 1, one side of the right side plate 407 being provided with a large ball outlet 5, and the spiral conveying shaft 2 being connected with an external driving motor, when a large number of steel balls enter the screening zone 4 from the ball inlet 1, the spiral conveying shaft 2 forms a spiral space in the screening barrel by means of spiral blades thereof, the steel balls move forward along the spiral blades while doing circumferential motion with the screening barrel, and the spiral blades play a guiding role, the steel balls smaller than the screen holes of the small ball screening barrel 401 are screened out, the steel balls larger than the screen holes of the small ball screening barrel 401 are sent into the medium ball screening barrel 402, the steel balls of different specifications are screened in different screening areas, and the steel balls with the largest diameter slide out of the large ball outlet 5.

[0020] In the embodiment, one side of the fine screening barrel 404 is provided with a rotating ring 405, the other side of the fine screening barrel 404 is provided with a fixed ring 408, the fixed ring 408 is connected with the small ball screening barrel 401 through a bearing 410, the inside of the left side plate 406 is provided with a sliding groove 409, the rotating ring 405 is slidably connected with the sliding groove 409 through a sliding block, the fine screening barrel 404 can rotate outside the small ball screening barrel 401 through cooperation of the sliding block and the sliding groove 409 and the setting of the bearing 410, when the small steel balls are stuck at the screen opening 6, causing the broken balls and irregular steel balls smaller than the small steel balls to be unable to drop out of the screen opening 6, the fine screening barrel 404 can be slightly rotated to ensure that the broken balls and irregular steel balls can be smoothly discharged from the screen opening 6.

[0021] In the embodiment, the movable grooves 601 are arranged on both sides of the sieve opening 6, the movable blocks 602 are arranged in the movable grooves 601, the lower end of the movable block 602 is fixedly provided with the adjusting plate 604, the front end and the rear end of the movable block 602 are provided with the positioning holes 603, the movable block 602 is fixedly connected with the fine sieve barrel 404 through the positioning pin, the bottom of the movable groove 601 is provided with a sliding groove for the movement of the adjusting plate 604, the movable block 602 is moved in the movable groove 601 through the adjusting plate 604, the distance between the two movable blocks 602 can be adjusted, so that the size of the sieve opening 6 can be adjusted, the size of the sieve opening 6 can be smaller than the sieve hole of the small ball sieve barrel 401, so that the small ball can be more finely sieved to meet the use requirement, the movable block 602 is positioned through the positioning pin after being adjusted, when the small steel balls in the fine sieve barrel 404 are taken out, the positioning pin is only taken out, the distance between the two movable blocks 602 is increased through the adjusting plate 604, that is, the size of the sieve opening 6 is increased, so that the small steel balls can directly fall into the collecting frame.

[0022] Working principle: when in use, the steel balls are poured into the rotating sieve from the ball inlet 1, the main shaft rotates to make the steel balls move, the spiral space is formed in the rotating sieve barrel by the spiral blade, the steel balls move forward along the spiral blade while doing the circular motion with the rotating sieve barrel, and the length of the screening area 4 of the rotating sieve barrel is indirectly increased. When a large number of steel balls enter, the spiral blade plays a guiding role, reduces the collision between the steel balls, and reduces the wrapping force between the steel balls. The steel balls smaller than the sieve hole are sieved into the fine sieve barrel 404 for secondary screening, the steel balls larger than the sieve hole are sent to the next screening area, the steel balls of different specifications are sieved in different screening areas, and the steel balls with the largest diameter are slid out of the large ball outlet 5.

Claims

1. A fine screening structure for a rotating steel ball screener, comprising screening sections (4), characterized in that: The sieve section (4) is provided with an inclined plate collection area (3) below it. The sieve section (4) is equipped with a spiral conveyor shaft (2). The sieve section (4) includes a small ball sieve barrel (401) and a medium ball sieve barrel (402). The small ball sieve barrel (401) and the medium ball sieve barrel (402) are fixedly connected. A left side plate (406) is fixedly provided on the side of the small ball sieve barrel (401) away from the medium ball sieve barrel (402). A right side plate (407) is fixedly provided on the side of the medium ball sieve barrel (402) away from the small ball sieve barrel (401). Support legs (403) are fixedly provided at the lower ends of the left side plate (406) and the right side plate (407). A fine sieve barrel (404) is provided outside the small ball sieve barrel (401). A sieve opening (6) is provided at the bottom of the fine sieve barrel (404).

2. The fine screen structure of a rotating steel ball screen according to claim 1, characterized in that: The left side plate (406) has a ball inlet (1) on one side, and the right side plate (407) has a large ball outlet (5) on one side.

3. The fine screen structure of a rotating steel ball screen according to claim 1, characterized in that: A rotating ring (405) is provided on one side of the fine sieve barrel (404), and a fixed ring (408) is provided on the other side of the fine sieve barrel (404). The fixed ring (408) is connected to the ball sieve barrel (401) by a bearing (410).

4. The fine screen structure of a rotating steel ball screen according to claim 1, characterized in that: The left side plate (406) is provided with a sliding groove (409), and the rotating ring (405) is slidably connected to the sliding groove (409) by a slider.

5. The fine screen structure of a rotating steel ball screen according to claim 1, characterized in that: Both sides of the sieve opening (6) are provided with movable grooves (601), and movable blocks (602) are provided inside the movable grooves (601). An adjusting plate (604) is fixedly provided at the lower end of the movable blocks (602).

6. The fine screen structure of a rotating steel ball screen according to claim 5, characterized in that: The movable block (602) has positioning holes (603) at both its front and rear ends, and the movable block (602) is fixedly connected to the fine sieve barrel (404) by positioning pins.

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