Portable multi-stage crushing device for rapid preparation of geological samples

Abstract

A portable multi-stage crushing device for rapid preparation of geological samples includes: a jaw crusher for primary crushing; a screening mechanism located below the discharge port of the jaw crusher; a double-roll crusher located on the side of the screening mechanism, with a separation plate between the screening mechanism and the double-roll crusher; a shell surrounding the screening mechanism and the double-roll crusher; a support base plate rotatably connected to the bottom of the shell; and multiple grading screens detachably connected to the support base plate. Rock samples crushed by the jaw crusher can be rapidly crushed to the target particle size in the double-roll crusher. Compared to using the double-roll crusher directly, multi-stage crushing reduces the probability of the double-roll crusher being jammed by large rock samples, increasing its service life. The support base plate is connected to the bottom of the shell via a rotating shaft. During transportation, the support base plate is horizontally positioned with its ends touching the ground, thereby reducing the overall height of the device and achieving portability during transport.

Description

Technical Field

[0001] This utility model relates to the field of geological sample preparation technology, and more specifically, to a portable multi-stage crushing device for rapid preparation of geological samples. Background Technology

[0002] Currently, sample crushing equipment in the geological exploration field generally suffers from problems such as low crushing efficiency, uneven particle size distribution, cumbersome repetitive operations, and lack of portability, making it difficult to meet the needs of rapid on-site sample preparation. The low crushing efficiency is due to the poor crushing effect on large rocks when using only a double-roll crusher, which is also prone to damage to the double-roll crusher. Multi-stage crushing and screening machines are also bulky and inconvenient to carry. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this invention aims to provide a portable multi-stage crushing device for rapid preparation of geological samples, which is capable of multi-stage crushing and is portable.

[0004] A portable multi-stage crushing device for rapid preparation of geological samples includes: a jaw crusher for primary crushing; a screening mechanism located below the discharge port of the jaw crusher; a double-roll crusher located on the side of the screening mechanism, with a separation plate between the screening mechanism and the double-roll crusher; a housing surrounding the screening mechanism and the double-roll crusher; a support base plate rotatably connected to the bottom of the housing; and multiple grading screens detachably connected to the support base plate.

[0005] Furthermore, the screening mechanism includes a fixed mesh and a sliding mesh. The fixed mesh is obliquely fixed between the outer shell and the separation plate, and the sliding mesh is disposed below the fixed mesh. Both ends of the sliding mesh are slidably connected to the outer shell and the separation plate, respectively.

[0006] Furthermore, the fixed mesh has several rectangular through holes, and the sliding mesh has a rectangular sealing plate in the middle, the width of which is the same as the width of the rectangular through holes.

[0007] Furthermore, one end of the sliding mesh protrudes from the outer shell, and an adjusting screw is screwed onto the outer shell, with the end of the adjusting screw rotatably connected to the sliding mesh.

[0008] Furthermore, the separating plate is provided with a connecting hole, the bottom of which is flush with the lowest point of the fixed net, the double roll crusher is located below the connecting hole, and the separating plate is provided with a guide plate facing the double roll crusher.

[0009] Furthermore, a vibration motor is provided on the housing.

[0010] Furthermore, the length of the supporting base plate is half the length of the bottom surface of the outer shell, and the supporting base plate is connected to the bottom of the outer shell via a pivot.

[0011] Furthermore, the side walls of the supporting base plate are provided with first protrusions, and the side walls of the outer shell are provided with second protrusions. The first protrusions and the second protrusions can be connected by positioning pins.

[0012] Furthermore, a roller shutter box is provided at the bottom of the side wall of the outer casing, and a protective cloth is wrapped inside the roller shutter box.

[0013] Furthermore, the supporting base plate is provided with a plurality of mounting holes, into which the grading screen can be inserted, and the mounting holes support both ends of the grading screen.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] ① Rock samples crushed by a jaw crusher can be quickly crushed to the target particle size in a double roll crusher. Compared with using a double roll crusher directly, multi-stage crushing can reduce the probability of the double roll crusher being jammed by large rock samples and increase the service life of the double roll crusher.

[0016] ② The supporting base plate is connected to the bottom of the outer shell via a pivot. During transportation, the supporting base plate is set horizontally to the ground, with the ends of the two supporting base plates touching, thereby reducing the overall height of the device and achieving portability during transport. When geological sample crushing and preparation are required, the supporting base plate is rotated downwards to support the ground, achieving the sample preparation state. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a portable multi-stage crushing device for rapid preparation of geological samples.

[0019] Figure 2 This is an internal schematic diagram of a portable multi-stage crushing device for rapid preparation of geological samples.

[0020] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0021] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0022] Figure 5This is a schematic diagram of the screening mechanism in a portable multi-stage crushing device for rapid preparation of geological samples.

[0023] Figure 6 This is a schematic diagram of a grading sieve in a portable multi-stage crushing device for rapid preparation of geological samples.

[0024] In the diagram: 1. Jaw crusher; 2. Screening mechanism; 21. Fixed screen; 211. Rectangular through hole; 22. Sliding screen; 221. Rectangular sealing plate; 222. Adjusting screw; 3. Double roll crusher; 4. Outer shell; 41. Separation plate; 411. Connecting hole; 412. Guide plate; 42. Second protrusion; 43. Roller shutter box; 431. Protective cloth; 44. Vibrating motor; 5. Support base plate; 51. Rotating shaft; 52. First protrusion; 53. Mounting hole; 54. Positioning pin; 6. Grading screen. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] like Figure 1 , Figure 2 As shown, a portable multi-stage crushing device for rapid preparation of geological samples includes: a jaw crusher 1 for primary crushing; a screening mechanism 2 located below the discharge port of the jaw crusher 1; a double-roll crusher 3 located on the side of the screening mechanism 2, with a separation plate 41 between the screening mechanism 2 and the double-roll crusher 3; a housing 4 surrounding the screening mechanism 2 and the double-roll crusher 3; a support base plate 5 rotatably connected to the bottom of the housing 4; and multiple grading screens 6 detachably connected to the support base plate 5.

[0027] Jaw crusher 1 is a commercially available product. It is cast from high-manganese steel and surface-carburized, achieving a hardness of HRC60 or higher. The jaw plate angle is designed to be 15-22°, with an adjustable opening width of 5-50mm, capable of processing rock blocks with an initial particle size ≤45mm. After obtaining geological samples, the rock blocks are fed into jaw crusher 1. Larger rock samples are then initially crushed, and the partially crushed sample falls from the outlet onto screening mechanism 2.

[0028] like Figure 5As shown, the screening mechanism 2 is inclined at an angle of approximately 15 degrees. The contact point between the screening mechanism 2 and the separation plate 41 is at its lowest point, preventing the rock sample from sliding towards the separation plate 41. The screening mechanism 2 includes a fixed mesh 21 and a sliding mesh 22. The fixed mesh 21 is fixed between the outer shell 4 and the separation plate 41. The sliding mesh 22 is located below the fixed mesh 21 and is in contact with it. Both ends of the sliding mesh 22 are slidably connected to the outer shell 4 and the separation plate 41, respectively. The sliding mesh 22 uses ball bearings and lubricant to ensure normal sliding and reduce the impact of dust on the sliding.

[0029] The fixed mesh 21 has several rectangular through holes 211, and the distance between adjacent rectangular through holes 211 is equal to the width of the rectangular through holes 211. The sliding mesh 22 has a rectangular blocking plate 221 in the middle, and the width of the rectangular blocking plate 221 is the same as the width of the rectangular through holes 211. When the sliding mesh 22 slides, the blocking plate will block part or all of the rectangular through holes 211. At this time, the particle size of the rock sample that can pass through can be adjusted. Rock samples smaller than the limit fall into the outer shell 4, and rock samples larger than the limit are intercepted on the fixed mesh 21 and then enter the double roll crusher 3 along the inclined direction of the fixed mesh 21.

[0030] like Figure 4 As shown, one end of the sliding screen 22 protrudes from the outer shell 4. The outer shell 4 has a slide rail for the fixed screen 21 to slide. An adjusting screw 222 is screwed onto the outer shell 4. The adjusting screw 222 has a handle that is easy to rotate. The end of the adjusting screw 222 is rotatably connected to the sliding screen 22. The adjusting screw 222 will not drive the sliding screen 22 to rotate, but it will drive the sliding screen 22 to slide left and right, thereby changing the restriction on the particle size passing through the screening mechanism 2.

[0031] Separation plate 41 is fixed to outer shell 4. Separation plate 41 is provided with connecting hole 411. The width of connecting hole 411 is the same as that of fixed mesh 21. The bottom of connecting hole 411 is flush with the lowest point of fixed mesh 21, thereby ensuring that large rock samples can pass through connecting hole 411. Double roller crusher 3 is located below connecting hole 411. Separation plate 41 is provided with guide plate 412 facing double roller crusher 3. Guide plate 412 ensures that rock samples that need to be crushed twice can fall directly into double roller crusher 3.

[0032] The double-roll crusher 3 is a commercially available model with adjustable spacing, allowing for control over the particle size after the second crushing stage. Rock samples crushed by the jaw crusher 1 are rapidly broken down to the target particle size in the double-roll crusher 3. Compared to using the double-roll crusher 3 directly, multi-stage crushing reduces the probability of it getting stuck due to large rock samples, thus increasing its service life.

[0033] The outer casing 4 is equipped with a vibration motor 44. After the vibration motor 44 is started, the entire device vibrates. After vibration, the rock sample on the screening mechanism 2 can be separated quickly, thereby improving the speed of geological sample preparation.

[0034] Two support base plates 5 are provided. The length of the support base plate 5 is half the length of the bottom surface of the outer shell 4. The support base plate 5 is connected to the bottom of the outer shell 4 by a pivot 51. During transportation, the support base plate 5 is set horizontally with the ground, and the ends of the two support base plates 5 are attached together, thereby reducing the overall height of the device and achieving portability during transportation. When it is necessary to crush and prepare geological samples, the support base plate 5 is rotated downwards so that it is supported on the ground, achieving the sample preparation state.

[0035] To prevent the support base plate 5 from rotating again after it has been unfolded, such as Figure 3 As shown, the side walls of the support base plate 5 are provided with first protrusions 52, and the side walls of the outer shell 4 are provided with second protrusions 42. When the support base plate 5 is unfolded and supported on the ground, the first protrusions 52 and the second protrusions 42 are inserted into the positioning pins 54. The positioning pins 54 pass through the first protrusions 52 and the second protrusions 42, thereby fixing the support base plate 5 and the outer shell 4 with the positioning pins 54, so that the support base plate 5 will not rotate during the vibration of the rock sample preparation and remains stable. When unfolding the support base plate 5, two people can lift the device to automatically lower the support base plate 5.

[0036] The bottom of the side wall of the outer shell 4 is provided with a roller shutter box 43, and a protective cloth 431 is wrapped inside the roller shutter box 43. When the support base plate 5 is unfolded, the protective cloth 431 is lowered to prevent the separated rock samples from jumping out and causing damage. When in the transport and storage state, the protective cloth 431 is wrapped in the roller shutter box 43.

[0037] The supporting base plate 5 has several mounting holes 53, into which the grading screen 6 can be inserted. The mounting holes 53 support both ends of the grading screen 6. Figure 6 As shown, the mesh size of the grading sieve 6 gradually decreases from top to bottom. Rock samples from both the screening mechanism 2 and the double-roll crusher 3 fall directly into the grading sieve 6. The grading sieve 6 classifies the crushed rock samples according to particle size, thus quickly obtaining geological samples. After screening, the grading sieve 6 can be removed from the mounting hole 53. The vibration motor 44, once started, also increases the grading speed of the grading sieve 6. The grading sieve 6 is not installed during transportation; it is inserted into the mounting hole 53 during rock sample preparation.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A portable multi-stage crushing device for rapid preparation of geological samples, characterized in that, include: Jaw crusher for primary crushing (1); A screening mechanism (2) is located below the discharge port of the jaw crusher (1); A double-roll crusher (3) is provided on the side of the screening mechanism (2), and a separation plate (41) is provided between the screening mechanism (2) and the double-roll crusher (3); The outer casing (4) surrounding the screening mechanism (2) and the double roll crusher (3); Rotate the support base plate (5) connected to the bottom of the outer shell (4); as well as Multiple grading screens (6) are detachably connected to the supporting base plate (5).

2. The portable multi-stage crushing device for rapid preparation of geological samples according to claim 1, characterized in that: The screening mechanism (2) includes a fixed mesh (21) and a sliding mesh (22). The fixed mesh (21) is inclinedly fixed between the outer shell (4) and the separation plate (41). The sliding mesh (22) is located below the fixed mesh (21). The two ends of the sliding mesh (22) are slidably connected to the outer shell (4) and the separation plate (41) respectively.

3. The portable multi-stage crushing device for rapid preparation of geological samples according to claim 2, characterized in that: The fixed mesh (21) has a plurality of rectangular through holes (211), and the sliding mesh (22) has a rectangular sealing plate (221) in the middle, the width of the rectangular sealing plate (221) being the same as the width of the rectangular through holes (211).

4. The portable multi-stage crushing device for rapid preparation of geological samples according to claim 3, characterized in that: One end of the sliding net (22) protrudes from the outer shell (4), and an adjusting screw (222) is screwed onto the outer shell (4). The end of the adjusting screw (222) is rotatably connected to the sliding net (22).

5. The portable multi-stage crushing device for rapid preparation of geological samples according to claim 4, characterized in that: The separation plate (41) is provided with a connecting hole (411), the bottom of the connecting hole (411) is flush with the lowest point of the fixed net (21), the double roll crusher (3) is located below the connecting hole (411), and the separation plate (41) is provided with a guide plate (412) facing the double roll crusher (3).

6. The portable multi-stage crushing device for rapid preparation of geological samples according to claim 5, characterized in that: The outer casing (4) is equipped with a vibration motor (44).

7. The portable multi-stage crushing device for rapid preparation of geological samples according to claim 6, characterized in that: The length of the support base plate (5) is half the length of the bottom surface of the outer shell (4), and the support base plate (5) is connected to the bottom of the outer shell (4) by a pivot (51).

8. The portable multi-stage crushing device for rapid preparation of geological samples according to claim 7, characterized in that: The support base plate (5) has a first protrusion (52) on both sides, and the outer shell (4) has a second protrusion (42) on its side. The first protrusion (52) and the second protrusion (42) can be connected by a positioning pin (54).

9. A portable multi-stage crushing device for rapid preparation of geological samples according to claim 8, characterized in that: The bottom of the side wall of the outer casing (4) is provided with a roller shutter box (43), and a protective cloth (431) is wrapped inside the roller shutter box (43).

10. A portable multi-stage crushing device for rapid preparation of geological samples according to claim 9, characterized in that: The supporting base plate (5) is provided with a plurality of mounting holes (53), and the grading screen (6) can be inserted into the mounting holes (53), and the mounting holes (53) support both ends of the grading screen (6).

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