A laboratory mineral crushing device

Abstract

This utility model discloses a laboratory mineral crushing device, including an upper crushing disc, a lower crushing disc, a receiving bin, and a motor. The upper crushing disc is horizontally positioned and connected to the receiving bin, while the lower crushing disc is horizontally positioned and rotatably connected to the receiving bin. A V-shaped crushing chamber is formed between the upper and lower crushing discs, with the diameter of the V-shaped crushing chamber gradually decreasing towards the outer edge. An inlet pipe communicating with the V-shaped crushing chamber is provided on the upper crushing disc, and the power output end of the motor is connected to the outer end of the extension shaft of the lower crushing disc. This device utilizes the combined action of the fixed upper crushing disc and the rotatable lower crushing disc, and leverages the centrifugal force generated by the lower crushing disc to crush and grind the material entering the V-shaped crushing chamber, thus overcoming the lack of fine material grinding function in traditional laboratory pulverizers. Furthermore, the central space of the V-shaped crushing chamber is larger than the side space, ensuring both the crushing and grinding function and accommodating the entry and crushing of larger materials.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and in particular to a mineral crushing device for laboratory use. Background Technology

[0002] In flotation reagent production, it is often necessary to sample and test the produced flotation reagent and conduct small-scale experiments before trial production. These are generally carried out in a laboratory setting, where the flotation reagent to be tested and crushed minerals are tested on a laboratory flotation machine to determine the effectiveness of the flotation reagent and guide adjustments to the production process and formulation. Before the test, a laboratory crusher is needed to crush the minerals. Laboratory crushers, also called ore sample crushers, ore sample pulverizers, or laboratory sample pulverizers, are mainly divided into three categories: laboratory sealed jaw crushers, laboratory sealed hammer crushers, and laboratory sealed double roll crushers. They are mainly used for crushing various medium-hardness rocks or ores and are important equipment in laboratories and testing facilities in industries such as metallurgy, geology, building materials, and chemicals.

[0003] Regardless of the type, laboratory grinders lack the function of fine material grinding. The materials they grind are relatively large and coarse, lacking fineness. Furthermore, because laboratory grinders are miniature devices, their feed inlets and grinding chambers cannot accept excessively large minerals, limiting their grinding range for larger minerals. Therefore, there is an urgent need for a laboratory mineral crushing device that can accept larger minerals and grind fine materials. Utility Model Content

[0004] The purpose of this invention is to provide a mineral crushing device for laboratory use, in order to solve the problem that traditional laboratory crushers do not have the function of fine material grinding and are not suitable for crushing larger minerals.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A laboratory mineral crushing device includes an upper crushing disc, a lower crushing disc, a receiving bin, and a motor. The upper crushing disc is horizontally arranged and connected to the receiving bin, and the lower crushing disc is horizontally arranged and rotatably connected to the receiving bin. A V-shaped crushing cavity is formed between the upper and lower crushing discs, and the diameter of the V-shaped crushing cavity gradually decreases towards the outer edge. An inlet pipe communicating with the V-shaped crushing cavity is provided on the upper crushing disc, and the power output end of the motor is connected to the outer end of the extension shaft of the lower crushing disc.

[0007] A further technical solution is that crushing blades are provided on both the outer conical surface of the upper crushing disc and the inner concave surface of the lower crushing disc.

[0008] A further technical solution is that the crushing blade is spiral-shaped.

[0009] A further technical solution is that the spiral direction of the crushing blades on the upper crushing disc is opposite to that on the lower crushing disc.

[0010] A further technical solution is: a support assembly is provided between the lower crushing disc and the receiving bin, the support assembly includes a base and a top seat, the base is installed inside the receiving bin, the top seat is installed on the lower surface of the lower crushing disc, and the base and the top seat are rotatably connected.

[0011] A further technical solution is that the lower crushing disc is provided with multiple material leakage holes.

[0012] A further technical solution is that the discharge end of the leakage hole is inclined outward.

[0013] A further technical solution is that a material distribution cone is provided at the inner bottom of the lower crushing disc.

[0014] A further technical solution is that the inner bottom surface of the receiving bin protrudes towards the center.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0016] This invention proposes a mineral crushing device for laboratory use. The device utilizes the combined action of a fixed upper crushing disc and a rotatable lower crushing disc, and leverages the centrifugal force generated by the lower crushing disc to crush and grind the material entering the V-shaped crushing chamber. This overcomes the lack of fine material grinding function in traditional laboratory pulverizers. Furthermore, the central space of the V-shaped crushing chamber is larger than the side space, ensuring both the crushing and grinding function and accommodating the entry and crushing of larger materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a laboratory mineral crushing device according to the present invention.

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the upper and lower crushing discs.

[0019] Figure 3 This utility model Figure 1 Schematic diagram of the structure of the middle and lower crushing disc.

[0020] Reference numerals in the attached diagram: 1. Upper crushing disc; 2. Lower crushing disc; 3. Feeding bin; 4. Motor; 5. V-shaped crushing chamber; 6. Feed pipe; 7. Crushing blade; 8. Support assembly; 9. Base; 10. Top seat; 11. Material leakage hole; 12. Dividing cone. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1:

[0028] This implementation example Figure 1 , Figure 2 and Figure 3 As shown, a laboratory mineral crushing device includes an upper crushing disc 1, a lower crushing disc 2, a receiving bin 3, and a motor 4. The upper crushing disc 1 is horizontally arranged and connected to the receiving bin 3, and the lower crushing disc 2 is horizontally arranged and rotatably connected to the receiving bin 3. A V-shaped crushing cavity 5 is formed between the upper crushing disc 1 and the lower crushing disc 2. The diameter of the V-shaped crushing cavity 5 gradually decreases towards the outer edge. An inlet pipe 6 communicating with the V-shaped crushing cavity 5 is provided on the upper crushing disc 1. The power output end of the motor 4 is connected to the outer end of the extension shaft of the lower crushing disc 2.

[0029] The upper crushing disc 1 can be made of bolts ( Figure 1 (Not marked in the middle) is connected to the receiving bin 3, and the installation position (height) of the upper crushing disc 1 can also be adjusted to control the distance between the upper crushing disc 1 and the lower crushing disc 2, thereby adjusting the appropriate size of the V-shaped crushing chamber 5 and indirectly controlling the grinding particle size.

[0030] The working principle of this device is as follows: First, the motor 4 is started to rotate the lower crushing disc 2, and the device enters an idling state, mainly to empty and discharge the residual materials from the previous production. The mineral raw materials are put into the V-shaped crushing chamber 5 of the device through the feed pipe 6. With the combined action of the fixed upper crushing disc 1 and the rotatable lower crushing disc 2, and with the centrifugal force generated by the lower crushing disc 2 on the material, the material entering the V-shaped crushing chamber 5 is crushed and ground. The crushed material that has reached a suitable particle size is thrown out and falls into the receiving bin 3. This device makes up for the lack of fine material grinding function in traditional laboratory crushers. In addition, the central space of the V-shaped crushing chamber 5 is larger than that of the sides, which not only ensures the crushing and grinding function, but also meets the purpose of crushing larger materials.

[0031] Preferably, crushing blades 7 are provided on both the outer conical surface of the upper crushing disc 1 and the inner concave surface of the lower crushing disc 2. The crushing blades 7 are helical.

[0032] The vertically distributed crushing blades 7 can more efficiently crush the material entering the V-shaped crushing chamber 5; furthermore, with the help of centrifugal force to throw the material outward, the spiral crushing blades 7 can move the material, promote the outward movement of small pieces of material, and be better crushed to a suitable particle size.

[0033] Preferably, the spiral direction of the crushing blades 7 on the upper crushing disc 1 is opposite to that on the lower crushing disc 2.

[0034] The opposite spiral-shaped crushing blades 7 can crush materials by acting in opposite directions.

[0035] Example 2: Based on the above examples, this example shows that a support assembly 8 is provided between the lower crushing disc 2 and the receiving bin 3. The support assembly 8 includes a base 9 and a top seat 10. The base 9 is installed inside the receiving bin 3, and the top seat 10 is installed on the lower surface of the lower crushing disc 2. The base 9 and the top seat 10 are rotatably connected.

[0036] The base 9 can be used to support the lower crushing disc 2 for load bearing, and can also limit the movement of the lower crushing disc 2. The base 9 and the top seat 10 can adopt an anti-slip structure, such as a T-shaped or L-shaped sliding structure.

[0037] Preferably, the lower crushing disc 2 is provided with multiple material leakage holes 11.

[0038] When the material enters the V-shaped crushing chamber 5, it may also carry some material of suitable particle size, which can be discharged directly from the discharge hole 11 in a timely manner; at the same time, the discharge hole 11 can also meet the timely discharge of material of suitable particle size during the grinding process.

[0039] Preferably, such as Figure 3 As shown, the discharge end of the material leakage hole 11 is inclined outward.

[0040] The material discharge hole 11 is inclined to accommodate the centrifugal force generated by the rotation of the lower crushing disc 2 on the material, so as to facilitate the discharge of material of appropriate particle size.

[0041] Preferably, such as Figure 2 As shown, a material distribution cone 12 is provided at the inner bottom of the lower crushing disc 2.

[0042] The main function of the material distribution cone 12 is to prevent material from accumulating in the center of the bottom of the lower crushing disc 2, ensuring that all material can be thrown out and crushed.

[0043] Preferably, the inner bottom surface of the receiving bin 3 protrudes towards the center.

[0044] The receiving hopper 3 is higher in the middle and lower on the outside, which facilitates the collection of crushed materials.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laboratory mineral crushing device, characterized in that: The device includes an upper crushing disc (1), a lower crushing disc (2), a receiving bin (3), and a motor (4). The upper crushing disc (1) is horizontally arranged and connected to the receiving bin (3). The lower crushing disc (2) is horizontally arranged and rotatably connected to the receiving bin (3). A V-shaped crushing cavity (5) is formed between the upper crushing disc (1) and the lower crushing disc (2). The diameter of the V-shaped crushing cavity (5) gradually decreases towards the outer edge. An inlet pipe (6) communicating with the V-shaped crushing cavity (5) is provided on the upper crushing disc (1). The power output end of the motor (4) is connected to the outer end of the extension shaft of the lower crushing disc (2).

2. A laboratory mineral crushing device according to claim 1, characterized in that: Crushing blades (7) are provided on the outer conical surface of the upper crushing disc (1) and the inner concave surface of the lower crushing disc (2).

3. A laboratory mineral crushing device according to claim 2, characterized in that: The crushing blade (7) is spiral-shaped.

4. The laboratory mineral crushing device according to claim 3, characterized in that: The spiral direction of the crushing blade (7) on the upper crushing disc (1) is opposite to that of the spiral direction of the crushing blade (7) on the lower crushing disc (2).

5. The laboratory mineral crushing device according to claim 1, characterized in that: A support assembly (8) is provided between the lower crushing disc (2) and the receiving bin (3). The support assembly (8) includes a base (9) and a top seat (10). The base (9) is installed inside the receiving bin (3), and the top seat (10) is installed on the lower surface of the lower crushing disc (2). The base (9) and the top seat (10) are rotatably connected.

6. The laboratory mineral crushing device according to claim 1, characterized in that: The lower crushing disc (2) is provided with multiple material leakage holes (11).

7. The laboratory mineral crushing device according to claim 6, characterized in that: The discharge end of the material leakage hole (11) is inclined outward.

8. The laboratory mineral crushing device according to claim 1, characterized in that: The bottom of the lower crushing disc (2) is provided with a material distribution cone (12).

9. The laboratory mineral crushing device according to claim 1, characterized in that: The inner bottom of the receiving bin (3) protrudes towards the center.

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