Crushing mechanism for gold ore beneficiation processing

Abstract

The utility model relates to the technical field of ore crushing, and provides a crushing mechanism for gold ore beneficiation processing, which is characterized in that the input end and the output end of a first conveying belt are respectively connected with the output end of a first-stage crusher and the input end of a screening device, and a first-stage discharge port is connected with the input end of a third conveying belt; the conveying device is used for conveying particle products with the first-level particle size to the next procedure. The second-stage discharge port is connected with the input end of the second conveying belt, the output end of the second conveying belt is connected with the input end of the third-stage crusher, and the output end of the third-stage crusher is connected with the input end of the first conveying belt; the third-stage discharge port is connected with the input end of the second-stage crusher, and the output end of the second-stage crusher is connected with the input end of the second conveying belt. By means of the technical scheme, the problems that in the prior art, crushed mineral aggregates are not uniform in particle size, and further fine crushing is lacked are solved.

Description

Technical Field

[0001] This utility model relates to the field of ore crushing technology, specifically to a crushing mechanism for gold ore beneficiation and processing. Background Technology

[0002] In the gold ore beneficiation and processing flow, the crushing stage directly affects the efficiency and quality of subsequent processes.

[0003] Traditional crushing mechanisms mostly employ relatively simple mechanical structures, such as common types like jaw crushers. These crushers primarily rely on the squeezing and impact between rigid components to crush the ore during operation. Jaw crushers, in particular, use the periodic opening and closing of the moving and fixed jaw plates to squeeze and crush the ore entering the crushing chamber.

[0004] Traditional crushing methods lack precise control over the ore crushing process. Due to differences in the physical properties of ores, such as hardness, toughness, and cleavage, uneven stress occurs under uniform high-intensity crushing, resulting in significant inhomogeneity in the particle size of the pulverized material. Subsequent grinding processes typically require relatively uniform particle size. If ore with excessively large particle size variations enters the grinding stage, it will cause uneven load on the grinding equipment, leading to accelerated localized wear and reduced equipment lifespan. Furthermore, the uneven particle size makes it difficult to ensure that all material reaches the desired level of fineness within the grinding time, potentially resulting in some parts being over-ground while others remain under-ground. Ultimately, this affects gold extraction rates and beneficiation quality, increases production costs, and reduces production efficiency.

[0005] In conclusion, traditional crushing mechanisms cannot meet the demands of modern, efficient, and precise mineral processing due to the uneven particle size of the ore, and therefore urgently need to be improved. Utility Model Content

[0006] This utility model proposes a crushing mechanism for gold ore beneficiation and processing, which solves the problems of uneven particle size of crushed ore and lack of further fine crushing in related technologies.

[0007] The technical solution of this utility model is as follows: A crushing mechanism for gold ore beneficiation and processing includes a frame and a primary crusher, a secondary crusher, a tertiary crusher, a first conveyor belt, a second conveyor belt, a third conveyor belt, and a screening device arranged on the frame;

[0008] The screening device has a two-layer screen structure with a primary discharge port, a secondary discharge port and a tertiary discharge port, which are used to screen out granular products with primary, secondary and tertiary particle sizes, respectively. The particle size of the granular products with primary, secondary and tertiary particle sizes increases progressively.

[0009] The input end and the output end of the first conveying belt are connected with the output end of the primary crusher and the input end of the screening device respectively, and the primary discharge port is connected with the input end of the third conveying belt, for conveying the granular product of the primary particle size to the next process.

[0010] The secondary discharge port is connected with the input end of the second conveying belt, the output end of the second conveying belt is connected with the input end of the tertiary crusher, and the output end of the tertiary crusher is connected with the input end of the first conveying belt.

[0011] The tertiary discharge port is connected with the input end of the secondary crusher, and the output end of the secondary crusher is connected with the input end of the second conveying belt.

[0012] Optionally, the input end of the first conveying belt and the input end of the second conveying belt are both lower than the height of the output end, the output end of the first conveying belt is higher than the height of the input end of the second conveying belt, and the output end of the second conveying belt is higher than the height of the input end of the first conveying belt.

[0013] Optionally, the projection of the first conveying belt and the second conveying belt on the horizontal plane is parallel to each other.

[0014] Optionally, the third conveying belt comprises two sections, and the two sections are perpendicular to each other, for changing the conveying direction of the granular product of the primary particle size.

[0015] Optionally, the utility model also comprises a maintenance passage and a maintenance ladder, and the maintenance passage and the maintenance ladder are both arranged on the rack, and the maintenance passage is arranged along the length direction of the first conveying belt and the second conveying belt.

[0016] Optionally, the first conveying belt, the second conveying belt and the third conveying belt are the same in structure, and all comprise a support, a supporting roller and a conveying belt body, the support is arranged on the rack, the supporting roller is rotatably arranged on the support, a plurality of groups of the supporting roller are distributed along the length direction of the support, and the conveying belt body is sleeved on the plurality of groups of the supporting roller.

[0017] Optionally, the number of each group of the supporting roller is three, two supporting rollers located on the two sides of the three supporting rollers are arranged in an inclined mode, and the three supporting rollers are distributed in an inverted trapezoidal mode as a whole.

[0018] Optionally, the primary crusher and the secondary crusher are jaw crushers, and the tertiary crusher is a cone crusher.

[0019] The working principle and beneficial effects of the utility model are as follows:

[0020] The whole set of equipment is built relying on the rack. The raw material is first conveyed to the primary crusher installed on the rack, the primary crusher carries out the first crushing operation on the raw material, and the crushed material is conveyed upward along the first conveying belt, and reaches the screening device also installed on the rack. The screening device adopts a two-layer screen structure, which can accurately screen the material into three kinds of particle products with different particle sizes, and the particle sizes from small to large are primary particle size, secondary particle size and tertiary particle size. The particle product with the tertiary particle size directly falls into the secondary crusher connected below the screening device due to its large size, and the secondary crusher carries out secondary crushing, and the particle product produced by the secondary crusher is conveyed upward together with the particle product with the secondary particle size screened by the screening device by means of the second conveying belt. The material is conveyed to the tertiary crusher by the second conveying belt, and after the third crushing of the tertiary crusher, the particle product produced is directly conveyed to the first conveying belt together with the raw material output by the primary crusher to be conveyed to the screening device again for a new round of screening. Finally, the particle product with the primary particle size screened by the screening device is successfully conveyed to the subsequent process by means of the third conveying belt.

[0021] Through such a unique equipment layout and work flow, from the crushing effect, a multi-stage crushing system composed of multiple crushers is adopted, and the raw material needs to be crushed and screened repeatedly for multiple times, and each crushing is aimed at the material with unqualified particle size after the previous screening, so that whether the large particle raw material or the medium particle raw material after the preliminary crushing can be fully and completely crushed, and the output raw material has uniform particle size, which lays a solid particle size foundation for the subsequent grinding, flotation and other processes, and is beneficial to improve the efficiency of the whole beneficiation process and the quality of gold extraction. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above characteristics, technical features, advantages and implementation modes of the present application will be further described in the following preferred embodiments in a clear and understandable manner combined with the drawings.

[0023] Fig. 1 It is a connection schematic diagram of various equipment in a crushing mechanism for gold ore beneficiation processing;

[0024] Fig. 2 It is a top view of a crushing mechanism for gold ore beneficiation processing;

[0025] Fig. 3 It is a side view of a crushing mechanism for gold ore beneficiation processing;

[0026] Fig. 4 It is a structural schematic diagram of the first conveying belt, the second conveying belt and the third conveying belt.

[0027] In the figure: 1, rack, 2, primary crusher, 3, secondary crusher, 4, tertiary crusher, 5, first conveyor belt, 6, second conveyor belt, 7, third conveyor belt, 8, screening device, 801, primary discharge port, 802, secondary discharge port, 803, tertiary discharge port, 9, maintenance path, 10, maintenance ladder, 11, support, 12, support roller, 13, conveyor belt body. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0029] In order to make the drawing simple, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, the same structure or function in some drawings is only schematically shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0030] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In addition, in the description of the present application, the terms "first", "second" and the like are only used for distinction and description, and cannot be understood as indicating or implying relative importance.

[0032] Reference Figs. 1-4 For the first embodiment of the present application, a kind of crushing mechanism for gold ore dressing processing is proposed, including rack 1 and the first stage crusher 2, secondary crusher 3, tertiary crusher 4, first conveyor belt 5, second conveyor belt 6, third conveyor belt 7 and screening device 8 arranged on the rack 1;

[0033] The screening device 8 is a two-layer screen structure, having a first discharge port 801, a second discharge port 802 and a third discharge port 803, respectively used for screening out particles of first particle size, second particle size and third particle size, and the particle size of the particles of first particle size, second particle size and third particle size increases gradually;

[0034] The input end and the output end of the first conveying belt 5 are connected to the output end of the first crusher 2 and the input end of the screening device 8 respectively, and the first discharge port 801 is connected to the input end of the third conveying belt 7, for conveying the particles of first particle size to the next process;

[0035] The second discharge port 802 is connected to the input end of the second conveying belt 6, the output end of the second conveying belt 6 is connected to the input end of the third crusher 4, and the output end of the third crusher 4 is connected to the input end of the first conveying belt 5;

[0036] The third discharge port 803 is connected to the input end of the second crusher 3, and the output end of the second crusher 3 is connected to the input end of the second conveying belt 6.

[0037] In this embodiment, the whole set of equipment is constructed relying on the rack 1. The raw material is first conveyed to the first crusher 2 installed on the rack 1, the first crusher 2 performs the first crushing operation on the raw material, and the crushed material is conveyed upward along the first conveying belt 5 and reaches the screening device 8 also installed on the rack 1. The screening device 8 adopts a two-layer screen structure and can accurately screen the material into three kinds of particle products of different particle sizes, and the particle sizes from small to large are first particle size, second particle size and third particle size. The particle product of third particle size is directly dropped into the second crusher 3 connected below the screening device 8 due to its large size, the second crusher 3 performs the second crushing on it, and the particle product produced by the second crusher 3 and the particle product of second particle size screened by the screening device 8 are conveyed upward by the second conveying belt 6. The material is conveyed to the third crusher 4 by the second conveying belt 6, and after the third crusher 4 completes the third crushing, the particle product produced is directly dropped onto the first conveying belt 5, and the raw material output by the first crusher 2 is conveyed again to the screening device 8 for a new round of screening. Finally, the particle product of first particle size screened by the screening device 8 is successfully conveyed to the subsequent process by the third conveying belt 7.

[0038] Through such a unique device layout and workflow, from the crushing effect, the multi-stage crushing system composed of multiple crushers is adopted, and the raw materials need to be crushed and screened repeatedly for many times. Each crushing is aimed at the materials whose particle size does not meet the standard after the last screening, so that whether it is large particle raw materials or medium particle raw materials after preliminary crushing, they can be fully and completely crushed, ensuring that the output raw materials have uniform particle size, laying a solid particle size foundation for subsequent grinding, flotation and other processes, and being beneficial to improve the efficiency of the whole beneficiation process and the quality of gold extraction.

[0039] Further, the input end height of the first conveying belt 5 and the second conveying belt 6 is lower than the output end height, the output end height of the first conveying belt 5 is higher than the input end height of the second conveying belt 6, and the output end height of the second conveying belt 6 is higher than the input end height of the first conveying belt 5.

[0040] Further, the projections of the first conveying belt 5 and the second conveying belt 6 on the horizontal plane are parallel to each other.

[0041] In this embodiment, through such a unique device layout, the first conveying belt 5 and the second conveying belt 6 are cleverly arranged in staggered manner, so that the material does not need to occupy a large flat space when flowing, directly uses the height difference and the self-weight of the raw materials to help the material flow, and the first conveying belt 5 and the second conveying belt 6 are parallel to each other and arranged in a rectangular shape, which is suitable for a narrow and long workshop, effectively reduces the land occupation of the whole crushing and screening device, saves valuable site resources for the beneficiation plant, and greatly improves the utilization efficiency of the site for enterprises with limited site.

[0042] Further, the third conveying belt 7 includes two sections, and the two sections are perpendicular to each other for changing the conveying direction of the first particle size product.

[0043] In this embodiment, the third conveying belt 7 is designed as a two-section structure, and there is a height difference between the two sections. The first section is used to receive the materials discharged from the first discharge port 801, and the materials are transferred to the second section by means of the height difference. Through the perpendicular relationship between the second section and the first section, the conveying direction of the materials is changed, so that the raw materials meeting the particle size requirements are conveyed to the grinding device beside the crushing mechanism, realizing the transfer of the materials to the next process.

[0044] Further, the maintenance path 9 and the maintenance ladder 10 are further included, and the maintenance path 9 and the maintenance ladder 10 are arranged on the rack 1, and the maintenance path 9 is arranged along the length direction of the first conveying belt 5 and the second conveying belt 6.

[0045] In this embodiment, the maintenance ladder 10 is firmly installed on the rack 1, and the inclination angle is reasonably designed to facilitate personnel climbing, and the step spacing is moderate to ensure that the workers can safely and conveniently climb upward.

[0046] When the first conveyor belt 5 or the second conveyor belt 6 needs to be overhauled and maintained, the workers first step on the maintenance path 9 along the length direction of the first conveyor belt 5 and the second conveyor belt 6 along the maintenance ladder 10, and the surface of the maintenance path 9 is treated to prevent slipping. With the help of the maintenance path 9, the running status of the first conveyor belt 5 and the second conveyor belt 6 can be observed closely and comprehensively, such as whether the tension of the conveyor belt is appropriate, whether there are signs of damage or tearing, whether it rotates flexibly, whether it is jammed, and whether the connection of the conveyor belt is firm. If a more complex fault is encountered, the maintenance path 9 also provides a convenient channel for subsequent carrying and maintenance equipment.

[0047] Further, the first conveyor belt 5, the second conveyor belt 6 and the third conveyor belt 7 have the same structure, each including a support 11, a support roller 12 and a conveyor belt body 13, the support 11 is arranged on the rack 1, the support roller 12 is rotatably arranged on the support 11, a plurality of groups of support rollers 12 are distributed along the length direction of the support 11, and the conveyor belt body 13 is sleeved on the plurality of groups of support rollers 12.

[0048] Further, the number of each group of support rollers 12 is three, and two support rollers 12 on both sides are inclinedly arranged, and the three support rollers 12 are distributed in an inverted trapezoidal shape as a whole.

[0049] In this embodiment, the number of each group of support rollers 12 is three, and is arranged in a unique inverted trapezoidal shape, and two support rollers 12 on both sides are inclinedly arranged. This structure changes the contact mode between the conveyor belt body 13 and the ore particles, and the two support rollers 12 on both sides can extrude the conveyor belt body 13 inward, which can gather the materials to the middle and prevent the materials from rolling off the edge of the conveyor belt body 13.

[0050] When the ore particles move forward with the conveyor belt, due to the existence of the two inclined support rollers 12 on both sides, they can provide an inward lateral support force to the conveyor belt body 13, effectively preventing the conveyor belt body 13 from deviating due to factors such as ore weight, impact and running inertia. Even if there is uneven distribution of large ore or sudden increase in ore flow during the conveying process, the conveyor belt can still maintain a stable straight running track and accurately convey the ore particles to the target position.

[0051] At the same time, a plurality of support rollers 12 evenly distributed along the length direction of the support base 11 provide continuous and uniform support for the conveying belt body 13. They share the weight of the ore, reduce the situation that the conveying belt body 13 is subjected to excessive force at a single point, reduce the risk of conveying belt wear, and prolong the service life of the conveying belt. Moreover, the support rollers 12 are rotatably arranged on the support base 11, and the rotation process is smooth and fluent, so that the running resistance of the conveying belt is reduced, the ore particles are quickly and stably conveyed, and the efficiency of the entire beneficiation process is further improved. The second conveying belt 6 and the third conveying belt 7 are the same, and they rely on the same structural advantages to ensure the efficient and stable circulation of the ore between various processes.

[0052] Further, the primary crusher 2 and the secondary crusher 3 are jaw crushers, and the tertiary crusher 4 is a cone crusher.

[0053] In this embodiment, by reasonably matching the types of the primary crusher 2, the secondary crusher 3 and the tertiary crusher 4, the advantages of the jaw crusher, such as being suitable for large-particle materials, strong crushing and large processing capacity, and the characteristics of the cone crusher, such as being suitable for small-particle materials, fine crushing and high uniformity of particles, are fully utilized. The ore crushing effect in the entire beneficiation process is significantly improved, higher-quality and more uniform-particle ore raw materials are provided for subsequent efficient beneficiation operations, and the gold extraction rate and beneficiation quality are further ensured.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application. They should be included in the scope of the claims of the present application.

Claims

1. A crushing mechanism for gold ore beneficiation and processing, characterized in that, It includes a frame (1) and a primary crusher (2), a secondary crusher (3), a tertiary crusher (4), a first conveyor belt (5), a second conveyor belt (6), a third conveyor belt (7) and a screening device (8) mounted on the frame (1); The screening device (8) has a two-layer screen structure with a primary discharge port (801), a secondary discharge port (802) and a tertiary discharge port (803), which are used to screen out granular products with primary, secondary and tertiary particle sizes, respectively. The particle size of the granular products with primary, secondary and tertiary particle sizes increases progressively. The input end and output end of the first conveyor belt (5) are respectively connected to the output end of the first-stage crusher (2) and the input end of the screening device (8). The first-stage discharge port (801) is connected to the input end of the third conveyor belt (7) and is used to transport the first-stage particle size granular products to the next process. The secondary discharge port (802) is connected to the input end of the second conveyor belt (6), the output end of the second conveyor belt (6) is connected to the input end of the tertiary crusher (4), and the output end of the tertiary crusher (4) is connected to the input end of the first conveyor belt (5). The third-stage discharge port (803) is connected to the input end of the second-stage crusher (3), and the output end of the second-stage crusher (3) is connected to the input end of the second conveyor belt (6).

2. The crushing mechanism for gold ore beneficiation and processing according to claim 1, characterized in that, The height of the input end of the first conveyor belt (5) and the second conveyor belt (6) is lower than the height of their output end. The height of the output end of the first conveyor belt (5) is higher than the height of the input end of the second conveyor belt (6). The height of the output end of the second conveyor belt (6) is higher than the height of the input end of the first conveyor belt (5).

3. The crushing mechanism for gold ore beneficiation and processing according to claim 2, characterized in that, The projections of the first conveyor belt (5) and the second conveyor belt (6) on the horizontal plane are parallel to each other.

4. The crushing mechanism for gold ore beneficiation and processing according to claim 3, characterized in that, The third conveyor belt (7) comprises two sections, which are perpendicular to each other, and is used to change the conveying direction of the first-stage particle size product.

5. A crushing mechanism for gold ore beneficiation and processing according to claim 4, characterized in that, It also includes a maintenance walkway (9) and a maintenance ladder (10), both of which are located on the frame (1). The maintenance walkway (9) is arranged along the length of the first conveyor belt (5) and the second conveyor belt (6).

6. A crushing mechanism for gold ore beneficiation and processing according to claim 1, characterized in that, The first conveyor belt (5), the second conveyor belt (6) and the third conveyor belt (7) have the same structure, each including a support (11), a support roller (12) and a conveyor belt body (13). The support (11) is mounted on the frame (1), the support roller (12) is rotatably mounted on the support (11), and multiple sets of the support roller (12) are distributed along the length direction of the support (11). The conveyor belt body (13) is sleeved on multiple sets of the support roller (12).

7. A crushing mechanism for gold ore beneficiation and processing according to claim 6, characterized in that, The number of each set of support rollers (12) is three. Two of the three support rollers (12) located on both sides are inclined and the three support rollers (12) are distributed in an inverted trapezoidal shape.

8. A crushing mechanism for gold ore beneficiation and processing according to claim 1, characterized in that, The primary crusher (2) and the secondary crusher (3) are jaw crushers, and the tertiary crusher (4) is a cone crusher.

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