A roller screen that facilitates rounding of the mineral material

Abstract

The utility model discloses a kind of be beneficial to the rolling axle sieve of mineral aggregate roundness, including sieve base, the top of sieve base is equipped with sieve support, the top of sieve support is equipped with rolling axle fixed beam on both sides, rolling axle fixed beam is equipped with bulk material hopper inside, the top of rolling axle fixed beam is equipped with side beam on both ends, the input end of rolling axle fixed beam is distributed with several rows of cylindrical rolling axle, several rows of variable direction rolling axle to output end, the output end of rolling axle fixed beam is equipped with discharge bottom plate, driving motor is connected with cylindrical rolling axle, variable direction rolling axle.This utility model can contact the rolling axle on the surface of small ball to become more round, surface becomes more smooth;Simple structure, low manufacturing cost, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing equipment technology, and in particular to a roller screen that facilitates the rounding of mineral materials. Background Technology

[0002] Currently, pelletizing chambers and chain grate machines in the pelletizing industry all contain roller screens. Their function is to remove small balls and loose materials that do not meet size requirements, and to smooth the surface of the qualified balls. A roller screen consists of multiple parallel cylindrical rollers, all rotating in one direction, driving the ore balls forward. The plane of the roller screen, composed of multiple rollers, is inclined at an angle to the horizontal plane, and there are certain gaps between the rollers. The small balls formed from the ore pellets roll on the multiple cylindrical rollers, while small, unqualified balls and loose materials pass through the gaps between the rollers. The qualified balls exit the screen after rolling on the multiple rollers. This rolling process makes the balls rounder and their surfaces smoother. However, since the balls only rotate and roll in one direction on the rollers, they cannot all contact the rollers, and therefore, the surface of the balls cannot be made smooth all around them. Utility Model Content

[0003] To solve the above problems, this utility model provides a roller screen that facilitates the rounding of mineral materials.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a roller screen that facilitates the roundness of mineral materials, including a screen base, a screen support installed on the top of the screen base, roller fixing beams installed on both sides of the top of the screen support, a bulk material funnel installed inside the roller fixing beam, side beams installed at both ends of the top of the roller fixing beam, several rows of cylindrical rollers and several rows of reversing rollers distributed from the input end to the output end of the roller fixing beam, a discharge bottom plate provided at the output end of the roller fixing beam, and a drive motor connected to the cylindrical rollers and reversing rollers.

[0005] Furthermore, the directional rollers are wavy.

[0006] Furthermore, the reversing roller is spiral-shaped.

[0007] Furthermore, a baffle plate is provided on the top of the side beam located at the input end.

[0008] Furthermore, baffles are provided on the inner side of the two roller fixing beams.

[0009] Furthermore, the discharge bottom plate is set to tilt downwards.

[0010] Furthermore, the discharge bottom plate is located above the output end side beam.

[0011] Furthermore, the drive motor is fixed on the roller fixing beam.

[0012] The beneficial effects of this utility model are: 1. The surface of the small ball can contact the roller, thus becoming more rounded and the surface becomes smoother; 2. It has a simple structure, low manufacturing cost, and is easy to use. Attached Figure Description

[0013] Figure 1 This is a side view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is the front view of this utility model; Figure 4 This is an isometric drawing of this utility model; Figure 5 This is a schematic diagram of a wave-shaped reversing roller structure; Figure 6 This is a schematic diagram of a spiral-shaped, reversible roller structure.

[0014] The components include: 1. Screen base, 2. Screen support, 3. Roller fixing beam, 4. Side beam, 5. Bulk hopper, 6. Cylindrical roller, 7. Reversing roller, 8. Baffle plate, 9. Discharge bottom plate, and 10. Drive motor. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-6 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] A roller screen that facilitates the rounding of mineral materials includes a screen base 1, a screen support 2 mounted on top of the screen base 1, roller fixing beams 3 mounted on both sides of the top of the screen support 2, a material hopper 5 mounted at the bottom inside the roller fixing beams 3, and side beams 4 mounted at both ends of the top of the roller fixing beams 3. Several rows of cylindrical rollers 6 and several rows of reversing rollers 7 are distributed from the input end to the output end of the roller fixing beams 3. A discharge bottom plate 9 is provided at the output end of the roller fixing beams 3, inclined downwards and located above the side beams 4 at the output end. A drive motor 10 is connected to the cylindrical rollers 6 and the reversing rollers 7, and the drive motor 10 is fixed to the roller fixing beams 3. The reversing rollers 7 are wavy or spiral. A baffle plate 8 is provided on the top of the side beams 4 at the input end, and baffle plates 8 are also provided on the inner sides of the roller fixing beams 3 on both sides.

[0017] Screen base 1, used to fix the entire screen body; screen support 2, used to support the screen body; roller fixing beam 3, used to fix the rollers; side beam 4, used to form the screen body as a whole; bulk material hopper 5, used to collect unqualified small balls and bulk materials screened out; cylindrical roller 6, used to receive incoming small balls; reversing roller 7, used to change the rolling direction of the ore small balls; baffle plate 8, used to block the ore and prevent the ore from spilling out of the screen; discharge bottom plate 9, used to discharge the screened finished material out of the screen body; drive motor 10, used to drive the rollers to rotate in one direction.

[0018] The first few rows are cylindrical rollers 6, used to receive small ore balls and roll them forward. The following rows are multi-row deflecting rollers 7. Each deflecting roller 7 has multiple arc-shaped grooves on its surface. The curvature of the arc is designed according to the diameter of the ore balls required by the user, ensuring that the balls generate lateral force when they contact the crests, while avoiding jamming and forming a wavy or spiral surface. Some deflecting rollers 7 have crests offset in one direction, while others have crests offset in another, allowing the balls to deflect to one side and then to the other while rolling forward. The zigzag arrangement of the crests on the wavy deflecting rollers 7 causes periodic lateral deflection of the balls during rolling, ensuring contact with the rollers in all directions. The spiral deflecting rollers 7 use spiral grooves to propel the balls to rotate, achieving all-around friction. The sum of the depths of the arc-shaped grooves on two adjacent deflecting rollers 7 must meet the screen spacing requirements, allowing balls and loose material of unqualified diameter to pass through the gaps between the rollers.

[0019] The principle of wavy rollers: The crests and troughs of the wavy surfaces of adjacent rollers are misaligned. Both the crests and troughs are arc-shaped, and the distance between them controls the bulk material. Some rollers have their crests misaligned in one direction, while others have them misaligned in another, creating a zigzag arrangement of the screen roller crests. Due to this misalignment, the small ore balls rotate laterally as they enter the trough of the next wavy roller. After multiple forward and lateral rotations, the surface of the balls comes into contact with the rotating rollers in all directions. The rotational friction of the rollers makes the balls more rounded and the surface smoother.

[0020] The principle of the spiral roller: The spiral crest propels the small ball, causing it to rotate laterally as it enters the next roller. After multiple forward and lateral rotations, the surface of the ball comes into contact with the rotating roller in all directions. The rotational friction of the roller makes the ball more rounded and the surface smoother. Through the design of the directional roller 7, the surface roughness of the ball is reduced by at least 30%, and the roundness error is less than 5%.

[0021] The embodiments described above are merely preferred embodiments of this utility model, and not all feasible embodiments of this utility model. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model. Although this utility model has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of this utility model. In particular, as long as there is no technical conflict, the features in the embodiments disclosed in this utility model can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, this utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A roller screen that promotes the roundness of ore materials, characterized in that, The screen base (1) is equipped with a screen support (2) on top of the screen base (1). Roller fixing beams (3) are installed on both sides of the top of the screen support (2). A bulk material funnel (5) is installed inside the roller fixing beam (3). Side beams (4) are installed at both ends of the top of the roller fixing beam (3). Several rows of cylindrical rollers (6) and several rows of reversing rollers (7) are distributed from the input end to the output end of the roller fixing beam (3). A discharge bottom plate (9) is provided at the output end of the roller fixing beam (3). The drive motor (10) is connected to the cylindrical rollers (6) and the reversing rollers (7).

2. The roller screen that promotes the roundness of ore according to claim 1, characterized in that, The reversing roller (7) is wavy.

3. The roller screen that promotes the roundness of ore according to claim 1, characterized in that, The reversing roller (7) is spiral-shaped.

4. The roller screen that promotes the roundness of ore according to claim 1, characterized in that, A baffle plate (8) is provided on the top of the side beam (4) located at the input end.

5. The roller screen that promotes the roundness of ore according to claim 1, characterized in that, The inner side of the roller fixing beam (3) on both sides is provided with a baffle plate (8).

6. The roller screen that promotes the roundness of ore according to claim 1, characterized in that, The discharge bottom plate (9) is inclined downward.

7. The roller screen that promotes the roundness of ore according to claim 1, characterized in that, The discharge bottom plate (9) is located above the output end side beam (4).

8. The roller screen that promotes the roundness of ore according to claim 1, characterized in that, The drive motor (10) is fixed on the roller fixing beam (3).

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