A mixing and coarseness separation structure for a laboratory mill

Abstract

This utility model discloses a structure for separating impurities and coarse particles in a laboratory mill. The mill includes a material inlet at its left end and an end cap at its right end. A discharge port is located at the right end of the end cap, and a connecting cylinder is fixedly connected to the right end of the discharge port. The connecting cylinder is connected to a screen via an adjusting component and secured with bolts. The screen has evenly distributed mesh holes. This screen effectively separates impurities and abnormally coarse particles. The adjusting component allows the screen to rotate and flip, adjusting it according to the mineral accumulation within the connecting cylinder to clean impurities and prevent them from entering the flotation process and affecting its normal operation.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory mill technology, specifically relating to a structure for separating impurities and coarse materials in a laboratory mill. Background Technology

[0002] Grinding is a crucial step in mineral processing, playing a vital role throughout the entire ore handling process. In laboratory flotation studies, grinding is intermittent. Typically, a sample of material is ground to the required fineness in a mill for a pre-designed time. Then, the mill discharge port's locking lever is loosened, and the ground slurry is discharged through the gap between the end cover and the mill cylinder. It is then collected in a basin or other container and transferred to a flotation machine for separation. During the grinding process, impurities such as plastic bags and tree roots, as well as occasionally missed coarse particles, are discharged and enter the flotation process. This poses risks during flotation operations, including clogging of air vents and circulation holes, impact on the flotation machine's rotating shaft and flotation cells, and shaft jamming. Utility Model Content

[0003] To address the problems existing in the background technology, this utility model provides a structure for separating impurities and coarse particles in a laboratory mill, which can promptly remove packaging bag fragments, bark and root debris, abnormally coarse particles, etc. mixed in with the material during grinding and material discharge, greatly improving the smoothness and safety of subsequent flotation operations.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A material separation and coarseness separation structure for a laboratory mill includes a mill, a material inlet at the left end of the mill, an end cover at the right end of the mill, a ore discharge port at the right end of the end cover, a connecting cylinder fixedly connected to the right end of the ore discharge port, and a screen connected to the connecting cylinder through an adjusting component, the screen having evenly distributed sieve holes.

[0006] The adjustment assembly includes a first rotating head, a second rotating head, and a rotating block. The first rotating head is fixed to the outer wall of the connecting cylinder, the rotating block is fixed to the outside of the screen, the second rotating head is rotatably connected to the rotating block, and the first rotating head is rotatably connected to the second rotating head.

[0007] Furthermore, on the opposite sides of the adjusting components, connecting nuts are fixed to the outer walls of the connecting cylinder and the screen, and the connecting cylinder and the screen are connected by bolts.

[0008] Furthermore, a clamp is provided on the outside of the connection between the connecting cylinder and the discharge port, and the clamp connects and fixes the connecting cylinder and the discharge port.

[0009] Furthermore, a sealing strip is provided on the connection surface between the connecting cylinder and the discharge port; a sealing gasket is also provided on the contact surface between the clamp and the connecting cylinder and the discharge port.

[0010] Furthermore, a sealing ring is provided on the connection surface between the connecting cylinder and the screen.

[0011] Furthermore, the screen is hemispherical.

[0012] Furthermore, the aperture of the screen is 0.9-1.7 mm.

[0013] Furthermore, a handle is fixedly connected to the side of the screen away from the adjustment component.

[0014] This utility model has the following beneficial effects:

[0015] (1) The screen of this utility model is hemispherical and has uniformly distributed screen holes, which can play the role of separating slag and abnormal coarse particles. At the same time, the screen can be rotated and flipped by adjusting the component. The adjusting component can adjust the screen according to the mineral accumulation in the connecting cylinder to clean up the slag and prevent impurities from entering the flotation machine and affecting the subsequent flotation operation.

[0016] (2) By adjusting the components and connecting nuts and bolts, this utility model can not only achieve a fixed connection between the screen and the connecting cylinder, but also, when the screen needs to be disassembled, it is only necessary to remove the bolts on the connecting nuts and then rotate the screen by adjusting the components. The operation is simple and convenient.

[0017] (3) The connection between the connecting cylinder and the discharge port of this utility model is provided with a clamp and fixed with bolts, and a sealing gasket is provided on the connection surface to ensure the sealing effect and avoid slurry leakage; and a sealing ring is provided on the connection surface between the connecting cylinder and the screen to further enhance the sealing performance of the overall structure.

[0018] (4) The present invention has a handle fixedly connected to the side of the screen away from the adjustment component, which makes it convenient for staff to operate the screen, such as opening or flipping the screen, thus improving the convenience and work efficiency during use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the adjustment component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the sealing strip installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the sealing ring installation structure of this utility model.

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0024] In the diagram, 1-mill, 2-material inlet, 3-end cover, 4-discharge outlet, 5-connecting cylinder, 6-screen, 7-screen hole, 8-rotating head one, 9-rotating head two, 10-rotating block, 11-clamp, 12-sealing strip, 13-sealing ring, 14-handle, 15-connecting nut, 16-bolt. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] In the description of this utility model, unless otherwise stated, the terms "left", "right", "up", "down", etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances. Example 1

[0028] A mixing and coarseness separation structure for a laboratory mill, as shown in the attached figure. Figure 1-3 The device includes a mill 1, with a material inlet 2 at its left end and an end cover 3 at its right end. A discharge port 4 is located at the right end of the end cover 3, and a connecting cylinder 5 is fixedly connected to the right end of the discharge port 4. In this embodiment, a clamp 11 is provided on the outer side of the connection between the connecting cylinder 5 and the discharge port 4. The clamp 11 connects and fixes the connecting cylinder 5 and the discharge port 4. By tightening the connecting bolts on the clamp 11, sufficient clamping force is generated between the connecting cylinder 5 and the discharge port 4, thereby achieving the connection between the discharge port 4 and the connecting cylinder 5. Preferably, a sealing gasket is provided on the connection surface between the clamp 11, the discharge port 4, and the connecting cylinder 5 to prevent slurry leakage. Alternatively, flanges are provided on the opposite end faces of the connecting cylinder 5 and the discharge port 4, allowing for flange connection.

[0029] The connecting cylinder 5 is connected to the screen 6 via an adjusting component, a connecting nut 15, and bolts 16. The adjusting component is located on the lower side, and the connecting nut 15 and bolts 16 are located on the opposite side of the adjusting component. In this embodiment, the screen 6 is hemispherical in shape and has evenly distributed screen holes 7 with a diameter of 0.9-1.7 mm. The screen hole diameter is larger than the grinding fineness, so the screen 6 does not need to filter the slurry; it only needs to filter out impurities and abnormally coarse particles.

[0030] Connecting nuts 15 are fixed on the outside of connecting cylinder 5 and screen 6 respectively. The nut holes of the two connecting nuts 15 are facing each other. Bolt 16 passes through connecting nuts 15 to fix connecting cylinder 5 and screen 6.

[0031] The adjustment assembly includes a first rotating head 8, a second rotating head 9, and a rotating block 10. The first rotating head 8 is fixed to the outside of the connecting cylinder 5, and the rotating block 10 is fixed to the outside of the screen 6. The second rotating head 9 is rotatably connected to the rotating block 10, and the first rotating head 8 is rotatably connected to the second rotating head 9. The rotation of the screen 6 is achieved through the adjustment assembly. The rotation process is demonstrated below:

[0032] When cleaning the screen 6, first remove bolt 16, then rotate the screen 6 clockwise or counterclockwise. The rotating block 10 rotates along the rotating head 2 9, separating the screen 6 from the connecting cylinder 5. After the screen 6 rotates 180 degrees, the rotating head 2 9 and the rotating head 1 8 are connected, allowing the screen 6 to rotate with the mesh opening facing downwards, making it easier to remove debris from the spherical screen 6.

[0033] During the grinding process, screen 6 is closed. After the material is ground, when a large amount of minerals accumulate, clamp 11 is removed and the connecting cylinder 5 is completely removed. The remaining material flows out through screen 6 to the receiving container. After the material is cleaned, screen 6 is opened and the slag is cleaned. After screen 6 is opened, it is rotatably connected to rotating block 10 through rotating head 2 9. Rotating head 1 8 is rotatably connected to rotating head 2 9 to rotate and flip the screen, which is conducive to the cleaning of slag. Example 2

[0034] As a further improvement to the above embodiments, the following technical solutions are provided: Figure 1 As shown, to facilitate the operation of the screen 6, the difference from the above embodiment is that the screen 6 is fixedly connected to a handle 14 on the side away from the adjustment component.

Claims

1. A scalping and sizing structure for a laboratory mill, characterized in that The mill (1) includes a material inlet (2) at the left end and an end cover (3) at the right end. The end cover (3) has a discharge port (4) at the right end. The discharge port (4) is connected to a connecting cylinder (5) at the right end. The connecting cylinder (5) is connected to a screen (6) through an adjustment component. The screen (6) has screen holes (7) evenly distributed.

2. The impurity and coarse particle separating structure of a laboratory mill according to claim 1, characterized in that, The adjustment assembly includes a rotating head one (8), a rotating head two (9), and a rotating block (10). The rotating head one (8) is fixed to the outer wall of the connecting cylinder (5), the rotating block (10) is fixed to the outer wall of the screen (6), the rotating head two (9) is rotatably connected to the rotating block (10), and the rotating head one (8) is rotatably connected to the rotating head two (9).

3. The impurity and coarse particle separating structure of a laboratory mill according to claim 1, characterized in that, On the opposite side of the adjusting assembly, the outer walls of the connecting cylinder (5) and the screen (6) are respectively fixed with connecting nuts (15), and the connecting cylinder (5) and the screen (6) are connected by bolts (16).

4. The impurity and coarse particle separating structure of a laboratory mill according to claim 1, characterized in that, A clamp (11) is provided on the outside of the connection between the connecting cylinder (5) and the discharge port (4), and the clamp (11) connects the connecting cylinder (5) and the discharge port (4).

5. The impurity and coarse particle separating structure of a laboratory mill according to claim 4, characterized in that, A sealing strip (12) is provided on the connecting surface between the connecting cylinder (5) and the discharge port (4); a sealing gasket is also provided on the contact surface between the clamp (11) and the connecting cylinder (5) and the discharge port (4).

6. The tramp clearance structure of a laboratory mill according to claim 1, characterized in that, The connecting surface between the connecting cylinder (5) and the screen (6) is provided with a sealing ring (13).

7. The mill's impurity and coarse particle separation structure according to claim 1, characterized in that, The screen (6) is hemispherical.

8. The tramp clearance structure of a laboratory mill according to claim 1, characterized in that, The aperture of the screen (6) is 0.9-1.7 mm.

9. The mill's impurity and coarse particle separation structure according to claim 1, characterized in that, A handle (14) is fixed to the side of the screen (6) away from the adjustment component.

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