Mine geological sampling and physical testing broken roll mill device

Abstract

This utility model discloses a crushing roller mill device for geological sampling and physical testing in mines. It includes a crushing roller mill body with multiple channels evenly distributed on its circumferential side. Each channel has an inner roller clamping cavity spaced apart from top to bottom. A clamping block is placed on the outer circumference of the crushing roller mill body. The inner side of the clamping block has a corresponding channel two that engages with channel one. Each channel two has an outer roller clamping cavity spaced apart from top to bottom. The outer and inner roller clamping cavities are combined in a one-to-one correspondence to form a grinding chamber for clamping the grinding rollers. Rotating shafts are rotatably installed in each crushing chamber, and grinding rollers corresponding to each grinding chamber are fitted onto the shafts, with the diameter of the grinding rollers increasing sequentially from top to bottom. This utility model, through staged crushing and grinding, can not only precisely control the grinding fineness but also effectively reduce environmental pollution and health risks caused by manual operation. Furthermore, its detachable design allows it to adapt to sample requirements of different particle sizes and weights.

Description

Technical Field

[0001] This utility model relates to the technical field of mining geological sampling roller mill device, specifically a mining geological sampling and physical testing crushing roller mill device. Background Technology

[0002] In non-ferrous metal testing operations at mining enterprises, whether for scientific research or production experiments, the grinding of the original sample is a crucial step. The grinding process not only needs to meet the specific requirements of the experiment regarding sample particle size and weight, but also must ensure that the ground sample accurately represents the original sample in terms of material composition and physicochemical properties. Therefore, the sample division and grinding process directly affect the accuracy and reliability of the experimental results.

[0003] Currently, the commonly used sampling methods in mineral processing testing mainly include the cone-ring method and the bisection or spot sampling method. The cone-ring method is generally suitable for large quantities of ore, while the bisection or spot sampling method is more commonly used for small samples. However, these methods generally have the following problems:

[0004] Problems caused by manual operation: Most existing sampling methods rely on manual operation, which not only increases the labor intensity of operators, but also easily leads to operators being harmed by environmental pollution such as dust and noise during the sampling process. Long-term exposure to such an environment may have serious health effects.

[0005] Difficulty in controlling grinding fineness: The grinding fineness of minerals has a direct impact on experimental results, but manual operation often makes it difficult to precisely control the grinding fineness, leading to increased instability in experimental results. This limitation is particularly pronounced in experiments requiring high-precision grinding, where manual operation is insufficient to meet experimental requirements.

[0006] Low experimental efficiency: Due to the limitations of manual operation, the sample division and grinding processes are usually time-consuming and prone to errors, resulting in low experimental efficiency. This not only affects the progress of the experiment but may also lead to sample waste due to improper operation, increasing experimental costs.

[0007] Environmental pollution: Dust and noise generated during manual operations not only harm the operators but may also pollute the laboratory environment, affecting other experiments. This pollution is particularly problematic in experiments requiring high cleanliness, as it can lead to inaccurate results.

[0008] To address the aforementioned problems, this application provides a detachable and assembleable staged crushing roller mill device. Utility Model Content

[0009] The purpose of this utility model is to overcome the defects and deficiencies of the existing technology and provide a crushing roller mill device for mine geological sampling and physical testing, which solves the various problems existing in the existing technology.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A crushing roller mill device for geological sampling and physical testing in mines includes a crushing roller mill body supported by a support base at the bottom of the crushing roller mill body. Multiple spaced, vertically penetrating channels 1 are evenly distributed on the circumferential side of the crushing roller mill body. Each channel 1 has spaced-apart inner grinding roller clamping cavities. A clamping block is placed on the outer circumference of the crushing roller mill body. The inner side of the clamping block has a corresponding channel 2 that engages with channel 1. Channel 1 and corresponding channel 2 are combined to form independent crushing chambers. A feed hopper is located at the top of each crushing chamber, and a discharge hopper is located at the bottom. Each channel 2 has spaced-apart outer grinding roller clamping cavities. The outer and inner grinding roller clamping cavities are combined to form grinding cavities for clamping grinding rollers. Rotating shafts are rotatably installed in each crushing chamber, and grinding rollers corresponding to each grinding cavity are mounted on the rotating shafts, with the diameter of the grinding rollers increasing sequentially from top to bottom.

[0012] The support base has circumferentially spaced discharge ports corresponding to the crushing chamber, and a conical discharge hopper is installed at the discharge port on the bottom surface of the support base.

[0013] The upper end of the main body of the crushing roller mill is provided with an end plate, and the end plate has a feed port that communicates with the crushing chamber. The feed port is located on the outer side off-center, and a conical feed hopper is installed above the feed port.

[0014] The two ends of the rotating shaft are respectively rotatably mounted on the end plate and the support base. The upper end of the rotating shaft extends out of the end plate, and a small gear is installed at the extended end. The rotation of the small gear is driven by the large gear in the middle. The small gear is distributed in the circumferential direction of the large gear and meshes with it. The rotation of the large gear is driven by the motor at the upper end.

[0015] The transmission ratio of the motor, the large gear, and the small gear is 5:3:1.

[0016] The clamping block is a fan-shaped clamping block. Multiple sets of fan-shaped clamping blocks are combined and sleeved on the outside of the crushing roller mill body and fixed by clamps. The outer circumference of the fan-shaped clamping block is provided with a groove for clamping the clamp.

[0017] The support base is provided with a recessed cavity for holding the bottom of the fan-shaped block, and the mating sides of adjacent fan-shaped blocks are respectively provided with corresponding positioning grooves and positioning protrusions.

[0018] The grinding rollers are respectively provided with spiral guide grooves from top to bottom to assist in guiding the flow of crushed stone.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention achieves step-by-step crushing and grinding of mineral samples through mechanization, and has the following characteristics:

[0021] Precise control of grinding fineness: Through each independently separated crushing chamber, different mineral samples can be crushed in sections, and the mineral samples are ground by the grinding rollers in the grinding chamber. Through the structural design of the grinding rollers with the diameter increasing from top to bottom, the mechanized step-by-step crushing and grinding can precisely control the grinding fineness to meet the requirements of different experiments.

[0022] Reduced environmental pollution: During the grinding process, the mineral sample only needs to be placed into the feed hopper, and then the grinding roller is driven by the motor to grind the mineral sample in the grinding chamber. The mechanized operation reduces the generation of dust and noise, and reduces the pollution to the operator and the laboratory environment. Moreover, a large gear drives multiple rotating shafts to rotate synchronously, which greatly improves the efficiency of sample division and grinding, shortens the experimental time, and reduces sample waste.

[0023] Detachable design: The detachable design of the crushing roller mill body and the clamping block facilitates the installation, disassembly and replacement of the grinding roller. Moreover, the corresponding grinding roller can be replaced according to the sample requirements of different particle sizes and weights, which improves the flexibility and applicability of the experiment.

[0024] Therefore, the present invention has a reasonable structural design and achieves step-by-step crushing and grinding of mineral samples through mechanization. It can not only accurately control the grinding fineness, but also effectively reduce the environmental pollution and health risks caused by manual operation. At the same time, the detachable design allows it to adapt to the needs of samples with different particle sizes and weights, improving the flexibility and efficiency of the experiment. Attached Figure Description

[0025] Figure 1 This is the front view of the present invention;

[0026] Figure 2 for Figure 1 Structural sectional view;

[0027] Figure 3 This is a top view of the present invention;

[0028] Figure 4 for Figure 2 Sectional view of AA;

[0029] Figure 5 for Figure 4 Enlarged view of the local structure at point B.

[0030] Figure label:

[0031] 1. Crushing roller mill body; 2. Support base; 3. Channel 1; 4. Inner grinding roller clamping cavity; 5. Clamping block; 6. Channel 2; 7. Conical feed hopper; 8. Conical discharge hopper; 9. Outer grinding roller clamping cavity; 10. Rotating shaft; 11. Grinding roller; 12. End plate; 13. Small gear; 14. Large gear; 15. Motor; 16. Clamping clamp; 17. Clamping groove; 18. Positioning groove; 19. Positioning protrusion; 20. Spiral guide groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0033] See appendix Figure 1-5 ;

[0034] A crushing roller mill device for geological sampling and physical testing in mines includes a crushing roller mill body 1, supported by a support base 2 at the bottom of the crushing roller mill body 1. Multiple vertically penetrating channels 3 are evenly distributed on the circumferential side of the crushing roller mill body 1. Inner grinding roller clamping cavities 4 are spaced apart from top to bottom on the channels 3. Clamping blocks 5 are clamped on the outer circumference of the crushing roller mill body 1. Channels 6 corresponding to and engaging with channels 3 are provided on the inner side of the clamping blocks 5. Channels 3 and corresponding channels 6 are combined to form independent crushing chambers. A feed hopper is provided at the top of the crushing chamber, and a discharge hopper is provided at the bottom of the crushing chamber. Outer grinding roller clamping cavities 9 are spaced apart from top to bottom on the channels 2. Outer grinding roller clamping cavities 9 and inner grinding roller clamping cavities 4 are combined to form grinding cavities for clamping grinding rollers. Rotating shafts 10 are rotatably installed in the crushing chambers, and grinding rollers 11 corresponding to each grinding cavity are mounted on the rotating shafts 10, with the diameter of the grinding rollers 11 increasing sequentially from top to bottom.

[0035] Furthermore, the support base 2 has circumferentially spaced discharge ports corresponding to the crushing chamber, and a conical discharge hopper 8 is installed at the discharge port on the bottom end face of the support base 2. The conical discharge hopper effectively guides the crushed material to flow towards the discharge port, preventing material accumulation or blockage and ensuring smooth discharge. The conical design helps reduce material retention near the discharge port, lowering the possibility of blockage. Especially when processing viscous or highly moist materials, it accelerates material flow, improves overall discharge efficiency, shortens material discharge time, and thus increases the equipment's production capacity. An end plate 12 is provided at the upper end of the crushing roller mill body 1. An inlet communicating with the crushing chamber is opened on the end plate 12. The inlet is located off-center on the outer side, and a conical feed hopper 7 is installed above the inlet. The conical feed hopper concentrates and guides materials to the feed inlet, ensuring smooth entry into the crushing chamber and preventing material from scattering or accumulating outside the equipment. The conical structure helps materials slide naturally under gravity, reducing feeding resistance and increasing feeding speed and efficiency, thereby enhancing the overall processing capacity of the equipment. On the other hand, since the feed inlet is located off-center, the conical feed hopper can evenly distribute materials to the edge area of ​​the crushing chamber, preventing material from concentrating in the center, thus improving the utilization rate and working efficiency of the crushing rollers.

[0036] The two ends of the rotating shaft 10 are rotatably mounted on the end plate 12 and the support base 2, respectively. The upper end of the rotating shaft 10 extends out of the end plate 12, and a small gear 13 is installed at the extended end. The rotation of the small gear 13 is driven by the large gear 14 in the middle. The small gears 13 are distributed around the circumference of the large gear 14 and mesh with it. The rotation of the large gear 14 is driven by the motor 15 at the upper end. By driving the large gear to rotate, the large gear drives the small gears meshing with it to rotate synchronously in the circumferential direction, thereby driving the grinding rollers on each rotating shaft to rotate, crushing the ore in the crushing chamber. The material is crushed in stages according to particle size by grinding rollers with progressively increasing diameters from top to bottom. Each stage uses appropriate equipment to improve overall efficiency, avoid large pieces of material directly impacting the equipment, reduce wear, extend equipment life, and better control the product particle size to meet different needs. The transmission ratio of the motor 15, the large gear 14, and the small gear 13 is 5:3:1. The transmission ratio indicates that the system has a speed reduction function. The high-speed rotation of the motor is reduced to the low-speed rotation of the small gear through the meshing of the large gear and the small gear, which is suitable for application scenarios that require low speed and high torque.

[0037] Furthermore, the locking block 5 is a fan-shaped locking block, with multiple sets of fan-shaped locking blocks combined and fitted onto the outside of the crushing roller mill body 1, and fixed by clamps 16. The outer circumference of the fan-shaped locking block is provided with a slot 17 for holding the clamp 16. The locking block can be fixed by multiple sets of clamps spaced apart from top to bottom. The fan-shaped locking blocks surround the outside of the crushing roller mill body in sequence, and the structure of the clamps achieves radial fixation, so that the channel one and channel two between the fan-shaped locking blocks and the crushing roller mill body form a crushing chamber; and the whole structure is detachable, which facilitates the installation, disassembly and replacement of the grinding roller. The support base 2 is provided with a cavity for holding the bottom of the fan-shaped locking block, and the mating sides of adjacent fan-shaped locking blocks are respectively provided with corresponding positioning grooves 18 and positioning protrusions 19. The bottom of the support base cavity facilitates the placement of the bottom end of the sector-shaped locking block. The positioning grooves and positioning protrusions on the mating sides of adjacent sector-shaped locking blocks are complementary in shape, ensuring a tight fit. The dimensions of the grooves and protrusions are precisely designed to ensure no looseness or excessive tightness during assembly. The protrusions guide the locking blocks accurately into the positioning grooves during assembly, simplifying the assembly process, ensuring accurate positioning of adjacent locking blocks during assembly, avoiding misalignment, simplifying assembly, and improving reliability.

[0038] Furthermore, the grinding roller 11 is provided with spiral guide grooves 20 arranged from top to bottom to assist in guiding the flow of crushed stone. Through the structure of the spiral guide grooves, a downward spiral conveying force can be achieved while the ore is being crushed, thus enabling simultaneous crushing and material guidance of the ore and avoiding blockage.

[0039] In practical use, the above structure can be used by simply placing the receiving box below the conical discharge hopper, then feeding the ore sample into the conical feed hopper, and turning on the motor.

[0040] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0041] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A crushing roller mill device for geological sampling and physical testing in mines, comprising a crushing roller mill body (1), wherein a support base (2) is mounted at the bottom of the crushing roller mill body (1), characterized in that: The crushing roller mill body (1) has multiple spaced, vertically connected channels (3) evenly distributed on its circumferential side. Each channel (3) has spaced-apart inner grinding roller clamping cavities (4) arranged from top to bottom. A clamping block (5) is clamped on the outer circumference of the crushing roller mill body (1). The inner side of the clamping block (5) has a corresponding channel (6) that engages with each channel (3). Each channel (3) and its corresponding channel (6) is combined to form an independent crushing chamber. The crushing chamber is provided with a feed hopper at the top and a discharge hopper at the bottom. The channel 2 (6) is provided with an outer grinding roller clamping cavity (9) spaced apart from top to bottom. The outer grinding roller clamping cavity (9) and the inner grinding roller clamping cavity (4) are combined one-to-one to form a grinding cavity for clamping grinding rollers. A rotating shaft (10) is rotatably installed in the crushing chamber. A grinding roller (11) corresponding to the grinding cavity is fitted on the rotating shaft (10), and the diameter of the grinding roller (11) increases from top to bottom.

2. The crushing roller mill device for mine geological sampling and physical testing according to claim 1, characterized in that: The support base (2) has circumferentially spaced discharge ports corresponding to the crushing chamber, and a conical discharge hopper (8) is installed at the discharge port on the bottom end face of the support base (2).

3. The crushing roller mill device for mine geological sampling and physical testing according to claim 1, characterized in that: The upper end of the main body (1) of the crushing roller mill is provided with an end plate (12), and the end plate (12) is provided with a feed port that communicates with the crushing chamber. The feed port is located on the outer side of the off-center position, and a conical feed hopper (7) is installed above the feed port.

4. The mine geological sampling and physical testing crushing roller mill device according to claim 3, characterized in that: The two ends of the rotating shaft (10) are respectively mounted on the end plate (12) and the support base (2) via the rotating shaft. The upper end of the rotating shaft (10) extends out of the end plate (12) and a small gear (13) is installed on the extended end. The rotation of the small gear (13) is driven by the large gear (14) in the middle. The small gear (13) is distributed in the circumferential direction of the large gear (14) and meshes with it. The rotation of the large gear (14) is driven by the motor (15) at the upper end.

5. The mine geological sampling and physical testing crushing roller mill device according to claim 4, characterized in that: The transmission ratio of the motor (15), the large gear (14), and the small gear (13) is 5:3:

1.

6. The crushing roller mill device for mine geological sampling and physical testing according to claim 1, characterized in that: The card block (5) is a fan-shaped card block. Multiple sets of fan-shaped card blocks are combined and sleeved on the outside of the crushing roller mill body (1) and fixed by clamps (16). The outer circumference of the fan-shaped card block is provided with a slot (17) for holding the clamps (16).

7. The mine geological sampling and physical testing crushing roller mill device according to claim 6, characterized in that: The support base (2) is provided with a recess for holding the bottom of the fan-shaped card block, and the mating sides of the adjacent fan-shaped card blocks are respectively provided with corresponding positioning grooves (18) and positioning protrusions (19).

8. The crushing roller mill device for mine geological sampling and physical testing according to claim 1, characterized in that: The grinding roller (11) is provided with spiral guide grooves (20) arranged from top to bottom to assist in guiding the flow of crushed stone.

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