Bottom discharging system of gyratory crusher
By using a combined design of step funnel, chute mechanism and heavy vibration screen in the bottom discharge system of the rotary crusher, the problems of high height of the bottom discharge system of the rotary crusher and leakage of material from the plate feeder are solved, and the effect of reducing construction investment and improving the sanitary environment of the workshop is achieved.
Patent Information
- Application Number
- CN202421591236.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The bottom discharge system of the existing rotary crusher has a high configuration, which leads to high construction investment and has problems with the plate feeder, which affects the workshop hygiene and labor intensity of workers.
The combined design of step funnel, chute mechanism and heavy-duty vibrating screen is adopted to replace the traditional plate feeder to reduce the overall height of the discharge system and reduce material leakage through the design of chutes and vibrating screens.
It effectively reduces the configuration height of the bottom discharge system of the rotary crusher, saves construction investment, improves the workshop sanitary environment, and reduces the labor intensity of workers.
Smart Images
Figure CN222855639U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of non-metallic ore sand and stone aggregate processing, and in particular relates to a bottom discharging system of a gyratory crusher. Background Art
[0002] As the scale of sand and gravel aggregate project construction continues to increase, the use of gyratory crushers in primary crushing operations is becoming more and more common. Gyratory crushers are used for the first stage of crushing in sand and gravel aggregate processing. They have the characteristics of large feed size, low energy consumption, high output, uniform particle size, and large crushing ratio. The commonly used primary crushing workshop with gyratory crushers is composed of the following from top to bottom: Figure 4 The gyratory crusher discharge bin 11 in the prior art is generally a reinforced concrete square bin, and the discharge method is to install a plate feeder 12 at the bottom of the bin, and the discharge of the gyratory crusher is fed into the belt conveyor 10 through the plate feeder 12. Its specific configuration is as follows Figure 5 As shown. Since the gyratory crusher uses a packed feed, in order to facilitate the unloading of the mine car, the coarse crushing workshop containing the gyratory crusher is generally set up underground or on the side of the hillside. Regardless of the construction method, the height of the coarse crushing workshop (excluding the upper plant of the raw material bin) is generally greater than 26m, and the excavation forms a deep foundation pit or a retaining wall with a height of more than 26m. In addition, the discharge bin adopts a reinforced concrete structure and the plate feeder has a large size and deadweight, resulting in high civil engineering costs for the entire coarse crushing workshop.
[0003] In addition, the heavy-duty plate feeder has gaps (1~5mm) in the chain plate structure, causing the material to leak into the closed loop of the conveying chain plate, or due to rainy and snowy weather, the viscosity of the material increases, and the material stuck on the chain plate is separated from the chain plate due to its own weight, vibration, etc. during the return journey, causing leakage. Leakage often occurs during production, resulting in poor hygiene in the production workshop, and manual cleaning is often required. Utility Model Content
[0004] The utility model provides a bottom discharging system of a gyratory crusher, and its purpose is to provide a method for reducing the configuration height of the bottom discharging system of the gyratory crusher and solving the leakage problem of the plate feeder, thereby reducing construction investment, improving the sanitary environment of the workshop, and reducing the labor intensity of workers.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A bottom discharging system of a gyratory crusher comprises a step hopper, a first flange, a chute mechanism and a belt conveyor; the lower port of the step hopper is connected to the chute mechanism through the first flange; and the belt conveyor is arranged directly below the chute mechanism.
[0007] The step funnel is an integrated structure of a quadrangular pyramid that is large at the top and small at the bottom, and each inner side wall of the quadrangular pyramid is provided with multiple steps.
[0008] The height of each step is 280-320mm and the width is 180-220m.
[0009] The chute mechanism includes a first chute, a second flange, a second chute, a heavy-duty vibrating screen and a third chute mechanism; the first chute is inclined, and its upper port is connected to the lower port of the step funnel through the first flange, the lower port of the first chute is connected to the upper port of the second chute through the second flange, and the lower port of the second chute faces the belt conveyor; the heavy-duty vibrating screen is connected to the lower surface of the first chute; the third chute mechanism is placed between the heavy-duty vibrating screen and the belt conveyor.
[0010] The sieve hole diameter of the heavy-duty vibrating screen is 80-120 mm.
[0011] The first chute is an integrated structure consisting of a first vertical cylinder and a first inclined cylinder; the first inclined cylinder is obliquely connected to the lower end of the first vertical cylinder; the upper port of the first vertical cylinder is connected to the lower port of the step funnel through a first flange; the lower port of the first inclined cylinder is connected to the second chute through a second flange; a strip opening is opened on the lower surface of the first inclined cylinder, and a heavy-duty vibrating screen is connected to the strip opening.
[0012] The angle between the upward direction of the first vertical cylinder axis and the downward direction of the first inclined cylinder axis is 115-125°.
[0013] The second chute is an integrated structure consisting of a second vertical cylinder and a second inclined cylinder; the second inclined cylinder is obliquely connected to the second vertical cylinder; the upper port of the second inclined cylinder is connected to the first chute through a second flange, and the lower port of the second inclined cylinder faces the belt conveyor.
[0014] The angle between the upward direction of the second vertical cylinder axis and the upward direction of the second inclined cylinder axis is 55-65°.
[0015] The lower part of the belt conveyor is connected to a base frame; the third chute mechanism includes a chute body and a bracket; the bracket is mounted on the belt conveyor, and its bottom is connected to the base frame; the chute body is connected to the bracket; the upper port of the chute body is connected to the discharge port of the heavy-duty vibrating screen, and the lower port of the chute body is arranged opposite to the belt conveyor.
[0016] Beneficial effects:
[0017] (1) The utility model proposes a design concept of "step chute + heavy-duty vibrating screen" for the bottom discharge device of the gyratory crusher, which reduces the space height of the traditional configuration by half and saves investment.
[0018] (2) The step hopper in the utility model utilizes the surface of the material discharge step to store materials, forming a "material-grinding" structure, thereby preventing the materials from directly impacting the step bottom plate and side plates, thereby extending the service life of the equipment.
[0019] (3) The utility model can slow down the speed of material falling, reduce the destructive force of material scouring, and greatly extend the service life of the discharge funnel at the bottom of the gyratory crusher.
[0020] (4) Since the step funnel of the utility model is less subject to wear, the funnel can be made of ordinary steel plates without the need to install wear-resistant lining plates, thereby reducing the purchase and production costs of the component.
[0021] (5) The utility model adopts a heavy-duty vibrating screen to replace the plate feeder, which solves the problem of the plate feeder occupying a large space and leaking materials.
[0022] (6) The heavy-duty vibrating screen in the utility model has a sieve hole size of 80 to 120 mm, which can screen out materials smaller than the sieve hole size in advance, forming a layer of material pad on the belt conveyor, thereby reducing the risk of large particles falling directly into the belt conveyor and scratching the belt surface or even tearing the belt.
[0023] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 It is a structural schematic diagram of the utility model.
[0026] Figure 2 It is a structural schematic diagram of the first chute in the utility model.
[0027] Figure 3 It is a structural schematic diagram of the second chute in the utility model.
[0028] Figure 4 Schematic diagram of the configuration of a coarse crushing plant including a gyratory crusher in the prior art.
[0029] Figure 5 Schematic diagram of the coarse crushing configuration of a traditional gyratory crusher.
[0030] In the figure: 1. ore bin; 2. gyratory crusher; 3. step funnel; 4. first flange; 5. first chute; 6. second flange; 7. second chute; 8. heavy-duty vibrating screen; 9. third chute mechanism; 10. belt conveyor; 11. discharge bin; 12. plate feeder; 13. first vertical cylinder; 14. first inclined cylinder; 15. second vertical cylinder; 16. second inclined cylinder. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Embodiment 1:
[0033] according to Figure 1-Figure 3 The bottom discharge system of a gyratory crusher shown in the figure comprises a step hopper 3, a first flange 4, a chute mechanism and a belt conveyor 10; the lower port of the step hopper 3 is connected to the chute mechanism through the first flange 4; the belt conveyor 10 is arranged directly below the chute mechanism.
[0034] Furthermore, the step funnel 3 is an integrated structure of a quadrangular pyramid that is larger at the top and smaller at the bottom, and each inner side wall of the quadrangular pyramid is provided with multiple steps.
[0035] Furthermore, the height of each step is 280-320mm and the width is 180-220m.
[0036] In actual use, the upper port of the step funnel 3 is connected to the discharge port at the lower end of the gyratory crusher 2, and an ore bin 1 is arranged above the gyratory crusher 2.
[0037] In specific applications, the sand and gravel aggregates in the ore bin 1 enter the gyratory crusher 2 for crushing, and then are lowered into the step hopper 3 through the lower discharge port. The step hopper 3 uses the steps on its side walls to store materials and forms a "material-grinding" structure, which reduces the direct impact of materials on the step bottom plate and side plates. In addition, the step hopper 3 can also slow down the speed at which the material falls. The utility model reduces the destructive force of material scouring from the above two aspects, greatly extending the service life of the discharge hopper at the bottom of the gyratory crusher 2. Furthermore, since the step funnel 3 is less worn, the funnel is made of ordinary steel plates, and the inner wall of the funnel does not need to be equipped with a wear-resistant lining, which reduces its procurement and production costs.
[0038] The height and width of each step will affect the storage and discharge of materials. Although a step that is too wide can store more materials, it will not be unloaded smoothly; a step that is too narrow will not be conducive to storage, but will be unloaded smoothly. The technical solution of using a step height of 280-320mm and a width of 180-220m is not only conducive to storage, but also unloads smoothly.
[0039] The overall height of the utility model is only half of the height H of the bottom discharge device of the gyratory crusher 2 in the prior art, and solves the leakage problem of the plate feeder 12, thereby reducing construction investment, improving the sanitary environment of the workshop, and reducing the labor intensity of workers. Wherein: H is the height of the bottom discharge device of the gyratory crusher in the prior art.
[0040] Embodiment 2:
[0041] according to Figure 1-Figure 3 The bottom discharging system of a gyratory crusher shown in the figure is different from that of the first embodiment in that: the chute mechanism includes a first chute 5, a second flange 6, a second chute 7, a heavy-duty vibrating screen 8 and a third chute mechanism 9; the first chute 5 is arranged obliquely, and its upper port is connected to the lower port of the step funnel 3 through the first flange 4, the lower port of the first chute 5 is connected to the upper port of the second chute 7 through the second flange 6, and the lower port of the second chute 7 is opposite to the belt conveyor 10; the heavy-duty vibrating screen 8 is connected to the lower surface of the first chute 5; and the third chute mechanism 9 is placed between the heavy-duty vibrating screen 8 and the belt conveyor 10.
[0042] Furthermore, the mesh size of the heavy-duty vibrating screen 8 is 80-120 mm.
[0043] In actual use, the material discharged from the bottom discharge port of the gyratory crusher 2 enters the first chute 5 through the step funnel 3, and then is screened in advance by the heavy-duty vibrating screen 8. The material with a particle size smaller than the mesh size of the heavy-duty vibrating screen 8 falls into the rear section of the belt conveyor 10 through the third chute mechanism 9, and the material with a particle size larger than the mesh size of the heavy-duty vibrating screen 8 falls into the front section of the belt conveyor 10 through the second chute 7. Since the fine material discharged into the rear section of the belt conveyor 10 forms a material cushion layer to protect the belt conveyor 10, when the conveyor belt moves forward, the large particles of material coming out of the second chute 7 fall on the material cushion layer, reducing the risk of large particles of material falling directly into the belt conveyor and scratching the belt surface or even tearing the belt.
[0044] The selection of the sieve hole diameter of the heavy-duty vibrating screen 8 can be determined according to actual needs, or 80 mm, 90 mm, 100 mm, 110 mm, 120 mm or any value between 80 and 120 mm can be selected.
[0045] In this embodiment, a heavy-duty vibrating screen in the prior art is used to replace the plate feeder 12 in the prior art, thereby solving the problem that the plate feeder 12 occupies a large space and leaks materials.
[0046] The belt conveyor 10 in this embodiment adopts the existing technology.
[0047] Embodiment three:
[0048] according to Figure 1-Figure 3 The bottom discharging system of a gyratory crusher shown in the figure is different from that of the second embodiment in that: the first chute 5 is an integrated structure composed of a first vertical cylinder 13 and a first inclined cylinder 14; the first inclined cylinder 14 is obliquely connected to the lower end of the first vertical cylinder 13; the upper port of the first vertical cylinder 13 is connected to the lower port of the step funnel 3 through the first flange 4; the lower port of the first inclined cylinder 14 is connected to the second chute 7 through the second flange 6; a strip opening is opened on the lower surface of the first inclined cylinder 14, and a heavy-duty vibrating screen 8 is connected to the strip opening.
[0049] Furthermore, the angle between the upward direction of the axis of the first vertical cylinder 13 and the downward direction of the axis of the first inclined cylinder 14 is 115-125°.
[0050] In actual use, the first chute 5 adopts the above-mentioned technical solution, so that the material coming out from the lower port of the step funnel 3 can be smoothly screened by the heavy-duty vibrating screen 8 and then enter the second chute 7 or the third chute mechanism 9, avoiding the risk of material blocking the first chute 5 and ensuring the continuity of material discharge.
[0051] In specific applications, the angle between the upward direction of the axis of the first vertical cylinder 13 and the downward direction of the axis of the first inclined cylinder 14 can be selected according to actual needs, such as 115°, 120°, 125°, etc., to meet the needs of the site and the requirements of the particle size of the screening material.
[0052] Embodiment 4:
[0053] according to Figure 1-Figure 3 The bottom discharging system of a gyratory crusher shown in the figure is different from that of the second embodiment in that: the second chute 7 is an integrated structure consisting of a second vertical cylinder 15 and a second inclined cylinder 16; the second inclined cylinder 16 is obliquely connected to the second vertical cylinder 15; the upper port of the second inclined cylinder 16 is connected to the first chute 5 through the second flange 6, and the lower port of the second inclined cylinder 16 is opposite to the belt conveyor 10.
[0054] Furthermore, the angle between the upward direction of the axis of the second vertical tube 15 and the upward direction of the axis of the second inclined tube 16 is 55-65°.
[0055] In actual use, the second chute 7 adopts the above technical solution, so that the large particle material coming out from the lower port of the first chute 5 can fall smoothly onto the belt conveyor 10, avoiding the risk of material blocking the second chute 7 and ensuring the continuity of material discharge.
[0056] In specific applications, the angle between the upward direction of the axis of the second vertical cylinder 15 and the upward direction of the axis of the second inclined cylinder 16 can be selected according to actual needs, such as 55°, 60°, 65°, etc., to meet the needs of the site and the requirements of the particle size of the screening material.
[0057] Embodiment five:
[0058] according to Figure 1-Figure 3 The bottom discharging system of a gyratory crusher shown in the figure is different from that of the first embodiment in that: the lower part of the belt conveyor 10 is connected to a base frame; the third chute mechanism 9 includes a chute body and a bracket; the bracket is mounted on the belt conveyor 10, and its bottom is connected to the base frame; the chute body is connected to the bracket; the upper port of the chute body is connected to the discharge port of the heavy-duty vibrating screen 8, and the lower port of the chute body is arranged opposite to the belt conveyor 10.
[0059] In actual use, the third chute mechanism 9 adopts the above-mentioned technical solution, which can ensure that the fine material smaller than the sieve hole diameter after screening by the heavy-duty vibrating screen 8 falls accurately into the belt conveyor 10 through the third chute mechanism 9, forming a protective cushion layer for the conveyor belt, so as to reduce the subsequent large particles falling directly into the belt conveyor 10 and causing damage to the belt conveyor 10.
[0060] In the absence of conflicts, technicians in this field can combine the relevant technical features in the above examples according to actual conditions to achieve corresponding technical effects. The specific combinations are not described here one by one.
[0061] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0062] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0063] The above is only a preferred embodiment of the utility model. The utility model will not be limited to these embodiments shown in this article, but should conform to the widest range consistent with the principles and novel features disclosed in this article. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model still fall within the scope of the technical solution of the utility model.
Claims
1. A bottom discharging system of a gyratory crusher, characterized in that: It comprises a step funnel (3), a first flange (4), a chute mechanism and a belt conveyor (10); the lower end of the step funnel (3) is connected to the chute mechanism via the first flange (4); and the belt conveyor (10) is arranged directly below the chute mechanism.
2. A bottom discharge system of a gyratory crusher according to claim 1, characterized in that: The step funnel (3) is an integrated structure of a quadrangular pyramid that is larger at the top and smaller at the bottom, and each side wall of the quadrangular pyramid is provided with a plurality of steps.
3. A bottom discharge system of a gyratory crusher according to claim 2, characterized in that: The height of each step is 280-320mm and the width is 180-220m.
4. A bottom discharge system of a gyratory crusher according to claim 1, characterized in that: The chute mechanism comprises a first chute (5), a second flange (6), a second chute (7), a heavy-duty vibrating screen (8) and a third chute mechanism (9); the first chute (5) is arranged obliquely, and its upper end is connected to the lower end of the step funnel (3) through the first flange (4); the lower end of the first chute (5) is connected to the upper end of the second chute (7) through the second flange (6); the lower end of the second chute (7) faces the belt conveyor (10); the heavy-duty vibrating screen (8) is connected to the lower surface of the first chute (5); and the third chute mechanism (9) is placed between the heavy-duty vibrating screen (8) and the belt conveyor (10).
5. A bottom discharge system of a gyratory crusher according to claim 4, characterized in that: The sieve hole diameter of the heavy-duty vibrating screen (8) is 80-120 mm.
6. A bottom discharge system of a gyratory crusher according to claim 4, characterized in that: The first chute (5) is an integrated structure consisting of a first vertical cylinder (13) and a first inclined cylinder (14); the first inclined cylinder (14) is obliquely connected to the lower end of the first vertical cylinder (13); the upper end of the first vertical cylinder (13) is connected to the lower end of the step funnel (3) through a first flange (4); the lower end of the first inclined cylinder (14) is connected to the second chute (7) through a second flange (6); a strip-shaped opening is opened on the lower surface of the first inclined cylinder (14), and a heavy-duty vibrating screen (8) is connected to the strip-shaped opening.
7. A bottom discharge system of a gyratory crusher according to claim 6, characterized in that: The angle between the upward direction of the axis of the first vertical cylinder (13) and the downward direction of the axis of the first inclined cylinder (14) is 115-125°.
8. A bottom discharge system of a gyratory crusher according to claim 4, characterized in that: The second chute (7) is an integrated structure consisting of a second vertical cylinder (15) and a second inclined cylinder (16); the second inclined cylinder (16) is obliquely connected to the second vertical cylinder (15); the upper end of the second inclined cylinder (16) is connected to the first chute (5) through a second flange (6), and the lower end of the second inclined cylinder (16) faces the belt conveyor (10).
9. A bottom discharge system of a gyratory crusher according to claim 8, characterized in that: The angle between the upward direction of the axis of the second vertical cylinder (15) and the upward direction of the axis of the second inclined cylinder (16) is 55-65°.
10. A bottom discharge system of a gyratory crusher according to claim 4, characterized in that: The lower part of the belt conveyor (10) is connected to a base frame; the third chute mechanism (9) comprises a chute body and a bracket; the bracket is mounted on the belt conveyor (10), and its bottom is connected to the base frame; the chute body is connected to the bracket; the upper end of the chute body is connected to the discharge port of the heavy-duty vibrating screen (8), and the lower end of the chute body is arranged opposite to the belt conveyor (10).