An apparatus for preparing rock powder

Abstract

The utility model relates to rock powder preparation technical field discloses a kind of rock powder preparation devices, comprising: grinding hopper, and mounting bracket mounted on grinding hopper, linkage mechanism is rotationally arranged on the mounting bracket, the lower end of the linkage mechanism is fastened with the grinding roller of ore fragment grinding, grinding groove is set in the grinding hopper with grinding hopper cooperation;Through the cooperation between grinding hopper, grinding roller, grinding groove, secondary crushing mechanism and linkage mechanism, the two groups of crushing rollers of secondary crushing mechanism can be secondary crushing to the crushed ore fragment, and then reduce the particle size of ore fragment, so that grinding roller and grinding groove form multistage grinding structure, and the ore fragment is multistage ground, and the step-by-step refinement grinding of ore is realized from top to bottom, guarantee the granularity of ground ore distribution, improve the production efficiency of ore powder.

Description

Technical Field

[0001] This utility model relates to the field of rock powder preparation technology, specifically to a rock powder preparation device. Background Technology

[0002] In the field of construction engineering, the performance of materials such as concrete and mortar is closely related to the particle size and activity of rock powder. In the chemical industry, rock powder is an important raw material, and its purity and particle size distribution have a direct impact on product performance and production efficiency. In the field of environmental protection, rock powder is used for pollutant adsorption and soil remediation, and has strict requirements on the specific surface area and adsorption performance of the powder. With the increasing demand for rock powder in the construction, chemical and environmental protection industries, the efficient preparation of rock powder has become a key technical link.

[0003] In existing technologies, the preparation of ore powder usually involves initial crushing with a crusher, followed by grinding with a grinding mill to obtain usable ore powder. However, during this process, the ore particles after crushing are of varying sizes, requiring larger particles to be removed from the grinding mill for secondary crushing, which reduces the grinding efficiency. Therefore, we need to propose a device for preparing rock powder. Utility Model Content

[0004] The purpose of this invention is to provide a device for preparing rock powder. By adding a secondary crushing mechanism to the grinding device, the input ore fragments are subjected to secondary crushing, reducing the particle size of the ore fragments. This facilitates multi-stage grinding of the ore, enabling the ore to be ground into powder with uniform particle size, thereby improving the production efficiency of the powder and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rock powder preparation apparatus, comprising:

[0006] A grinding bucket and a mounting frame mounted on the grinding bucket. A linkage mechanism is rotatably mounted on the mounting frame. A grinding roller for grinding ore fragments is tightly attached to the lower end of the linkage mechanism. A grinding groove that cooperates with the grinding bucket is opened inside the grinding bucket. The ore fragments are ground in multiple stages in the grinding groove by the grinding roller to achieve fine grinding of the ore fragments.

[0007] The secondary crushing mechanism installed on the mounting frame enables secondary crushing of ore fragments.

[0008] The secondary crushing mechanism includes a crushing box, in which two sets of crushing rollers are rotatably arranged. One end of each set of crushing rollers passes through the crushing box and is equipped with a drive gear. The other end of one set of crushing rollers is equipped with a motor, and the other end of the other set of crushing rollers is equipped with a first bevel gear that meshes with a linkage mechanism.

[0009] Preferably, the upper end of the crushing box is provided with a feed hopper, the lower end of the crushing box is provided with a discharge hopper, and a support frame for supporting the crushing box is fixedly connected to the mounting frame.

[0010] Preferably, the upper end of the grinding roller is provided with an upper conical surface, the end of the upper conical surface is provided with a docking part for engaging with the linkage mechanism, the outer side of the grinding roller is provided with multiple sets of first grinding teeth, and the side view cross section of the grinding roller is arranged in an inverted isosceles trapezoid.

[0011] Preferably, the grinding groove includes a primary grinding chamber, a secondary grinding chamber, a tertiary grinding chamber, and a quaternary grinding chamber connected sequentially from top to bottom. The upper opening diameters of the primary, secondary, tertiary, and quaternary grinding chambers decrease sequentially from top to bottom, and the lower opening diameters of the primary, secondary, tertiary, and quaternary grinding chambers decrease sequentially from top to bottom. The inner walls of the primary, secondary, tertiary, and quaternary grinding chambers are provided with multiple sets of second grinding teeth.

[0012] Preferably, the distance between the inner wall of the first-stage grinding chamber and the outer wall of the grinding roller is greater than the distance between the inner wall of the second-stage grinding chamber and the outer wall of the grinding roller, the distance between the inner wall of the second-stage grinding chamber and the outer wall of the grinding roller is greater than the distance between the inner wall of the third-stage grinding chamber and the outer wall of the grinding roller, and the distance between the inner wall of the third-stage grinding chamber and the outer wall of the grinding roller is greater than the distance between the inner wall of the fourth-stage grinding chamber and the outer wall of the grinding roller.

[0013] Preferably, the linkage mechanism includes a connecting shaft rotatably mounted on the mounting frame, a second bevel gear meshing with the first bevel gear at the upper end of the connecting shaft, a connecting flange that fits into the mating part at the lower end of the connecting shaft, a plurality of fastening bolts that are bolted to the mating part inserted into the connecting flange, and a protective cover covering the first bevel gear and the second bevel gear on the mounting frame.

[0014] Preferably, the lower end of the grinding bucket is fixedly connected to a discharge pipe that communicates with the fourth-stage grinding chamber, the outer side of the grinding bucket is provided with multiple sets of support legs, and the upper end of the grinding bucket is provided with an annular enclosure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model mainly utilizes the cooperation between the grinding bucket, grinding roller, grinding trough, secondary crushing mechanism and linkage mechanism. The two sets of crushing rollers in the secondary crushing mechanism can perform secondary crushing on the crushed ore fragments, thereby reducing the particle size of the ore fragments. This allows the grinding roller and grinding trough to form a multi-stage grinding structure, which performs multi-stage grinding on the ore fragments and achieves progressive fine grinding of the ore from top to bottom. This ensures that the ground ore has a uniform particle size and improves the production efficiency of ore powder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the preparation device of this utility model;

[0018] Figure 2 This is a schematic diagram of the mounting bracket and linkage mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the secondary crushing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the grinding roller structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the grinding groove of this utility model.

[0022] In the diagram: 1. Grinding bucket; 2. Mounting frame; 201. Support frame; 3. Protective cover; 4. Secondary crushing mechanism; 41. Crushing box; 42. Crushing roller; 43. Drive gear; 44. Motor; 45. First bevel gear; 46. Feed hopper; 47. Discharge hopper; 5. Linkage mechanism; 51. Connecting shaft; 52. Second bevel gear; 53. Connecting flange; 54. Fastening bolt; 6. Grinding roller; 61. Upper conical surface; 62. Connecting part; 63. First grinding tooth; 7. Discharge pipe; 8. Support leg; 9. Enclosure; 10. Grinding groove; 101. Primary grinding chamber; 102. Secondary grinding chamber; 103. Tertiary grinding chamber; 104. Quaternary grinding chamber; 105. Second grinding tooth. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5This utility model provides a technical solution: a rock powder preparation device, including a grinding bucket 1, a mounting frame 2 installed on the grinding bucket 1, a secondary crushing mechanism 4 installed on the mounting frame 2, a linkage mechanism 5 rotatably installed on the mounting frame 2, a grinding roller 6 for grinding ore fragments tightly attached to the lower end of the linkage mechanism 5, a grinding groove 10 that cooperates with the grinding bucket 1 is opened in the grinding bucket 1, and the ore fragments are ground in multiple stages in the grinding groove 10 by the grinding roller 6 to achieve fine grinding of the ore fragments, and the secondary crushing mechanism 4 achieves secondary crushing processing of the ore fragments;

[0025] The secondary crushing mechanism 4 includes a crushing box 41, in which two sets of crushing rollers 42 are rotatably arranged. One end of each set of crushing rollers 42 passes through the crushing box 41 and is equipped with a drive gear 43. The other end of one set of crushing rollers 42 is equipped with a motor 44, and the other end of the other set of crushing rollers 42 is equipped with a first bevel gear 45 that meshes with the linkage mechanism 5.

[0026] The upper end of the crushing box 41 is provided with a feed hopper 46, the lower end of the crushing box 41 is provided with a discharge hopper 47, and a support frame 201 for supporting the crushing box 41 is fixedly connected to the mounting frame 2.

[0027] Specifically, the feed hopper 46 facilitates the concentrated entry of ore fragments into the crushing box 41, improving feeding efficiency, while the discharge hopper 47 ensures that the crushed material smoothly enters the grinding hopper 1, avoiding material blockage. The support frame 201 provides stable support for the crushing box 41, enhancing the overall stability of the equipment and ensuring smooth operation of the crushing process.

[0028] The upper end of the grinding roller 6 is provided with an upper conical surface 61, and the end of the upper conical surface 61 is provided with a docking part 62 that connects with the linkage mechanism 5. Multiple sets of first grinding teeth 63 are provided on the outer side of the grinding roller 6. The side view cross section of the grinding roller 6 is an inverted isosceles trapezoid.

[0029] It is worth noting that the docking part 62 facilitates the docking and installation of the grinding roller 6 and the linkage mechanism 5. The first grinding tooth 63 increases the contact area and friction between the grinding roller 6 and the ore, thereby improving the grinding effect. The inverted isosceles trapezoidal side view section design allows the grinding roller 6 to better fit the cavity wall in different grinding cavities, adapting to the spatial variation requirements of multi-stage grinding.

[0030] The grinding tank 10 includes a primary grinding chamber 101, a secondary grinding chamber 102, a tertiary grinding chamber 103, and a quaternary grinding chamber 104 connected sequentially from top to bottom. The upper opening diameters of the primary grinding chamber 101, the secondary grinding chamber 102, the tertiary grinding chamber 103, and the quaternary grinding chamber 104 decrease sequentially from top to bottom. The lower opening diameters of the primary grinding chamber 101, the secondary grinding chamber 102, the tertiary grinding chamber 103, and the quaternary grinding chamber 104 decrease sequentially from top to bottom. The inner walls of the primary grinding chamber 101, the secondary grinding chamber 102, the tertiary grinding chamber 103, and the quaternary grinding chamber 104 are provided with multiple sets of second grinding teeth 105.

[0031] In a further preferred embodiment, the design of the primary grinding chamber 101, the secondary grinding chamber 102, the tertiary grinding chamber 103, and the quaternary grinding chamber 104 realizes the graded grinding of the ore. The size of each grinding chamber and the structure of the grinding teeth in the grinding chamber are set according to the fineness of the ore particles, gradually reducing the ore particle size and ensuring uniform powder particle size. The second grinding tooth 105 works in conjunction with the first grinding tooth 63 to further enhance the grinding effect and improve the grinding efficiency.

[0032] The distance between the inner wall of the first-stage grinding chamber 101 and the outer wall of the grinding roller 6 is greater than the distance between the inner wall of the second-stage grinding chamber 102 and the outer wall of the grinding roller 6. The distance between the inner wall of the second-stage grinding chamber 102 and the outer wall of the grinding roller 6 is greater than the distance between the inner wall of the third-stage grinding chamber 103 and the outer wall of the grinding roller 6. The distance between the inner wall of the third-stage grinding chamber 103 and the outer wall of the grinding roller 6 is greater than the distance between the inner wall of the fourth-stage grinding chamber 104 and the outer wall of the grinding roller 6. By gradually reducing the distance in each stage of the grinding process, the pressure on the ore gradually increases during the grinding process. The grinding process proceeds in an orderly manner from coarse grinding to fine grinding, effectively controlling the particle size of the powder and ensuring that the produced powder meets the high precision requirements.

[0033] The linkage mechanism 5 includes a connecting shaft 51 rotatably mounted on the mounting frame 2. The upper end of the connecting shaft 51 is provided with a second bevel gear 52 that meshes with the first bevel gear 45. The lower end of the connecting shaft 51 is fixedly connected with a connecting flange 53 that fits against the docking part 62. Multiple sets of fastening bolts 54 that are bolted to the docking part 62 are inserted into the connecting flange 53. The mounting frame 2 is provided with a protective cover 3 that covers the first bevel gear 45 and the second bevel gear 52.

[0034] In this embodiment, the transmission between the first bevel gear 45 and the second bevel gear 52 enables the vertical transmission of power, which links the secondary crushing mechanism 4 with the grinding roller 6, reducing the number of power equipment and lowering energy consumption. The protective cover 3 protects the first bevel gear 45 and the second bevel gear 52 to prevent foreign objects from entering and affecting the transmission, while ensuring the safety of the operators.

[0035] The lower end of the grinding bucket 1 is fixedly connected to the discharge pipe 7, which is connected to the fourth-stage grinding chamber 104. Multiple sets of support legs 8 are provided on the outside of the grinding bucket 1. The upper end of the grinding bucket 1 is provided with an annular enclosure 9. The discharge pipe 7 facilitates the collection of ground rock powder and improves the discharge efficiency. The annular enclosure 9 can prevent material from splashing during the grinding process, keep the working environment clean, and at the same time play a certain safety protection role.

[0036] In operation, ore fragments enter the crushing chamber 41 through the feed hopper 46. The motor 44 drives one set of crushing rollers 42 to rotate, and through the drive gear 43, drives the other set of crushing rollers 42 to rotate in the opposite direction, thus squeezing and shearing the ore fragments. The material after secondary crushing falls above the grinding roller 6 through the discharge hopper 47. While the motor 44 drives the crushing rollers 42 to rotate, the first bevel gear 45 meshes with the second bevel gear 52, transmitting power to the connecting shaft 51. The connecting flange 53 at the lower end of the connecting shaft 51 is fixed to the mating part 62 of the grinding roller 6 by fastening bolts 54, driving the grinding roller 6 to grind in the grinding groove of the grinding hopper 1. Rotating within 10, under the action of centrifugal force, the ore fragments first enter the primary grinding chamber 101. The first grinding tooth 63 on the outer side of the grinding roller 6 cooperates with the second grinding tooth 105 on the inner wall of the primary grinding chamber 101 to perform preliminary grinding of the ore. The ore then enters the secondary grinding chamber 102, the tertiary grinding chamber 103, and the quaternary grinding chamber 104 in sequence for grinding. As the distance between each grinding chamber and the grinding roller 6 gradually decreases, the grinding pressure and fineness continuously increase. Finally, fine grinding is completed in the quaternary grinding chamber 104, allowing qualified rock powder to be discharged from the discharge pipe 7, thus improving the efficiency of ore powder preparation.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for preparing rock powder, characterized in that, include: A grinding bucket (1) and a mounting frame (2) mounted on the grinding bucket (1). A linkage mechanism (5) is rotatably mounted on the mounting frame (2). A grinding roller (6) for grinding ore fragments is tightly attached to the lower end of the linkage mechanism (5). A grinding groove (10) that cooperates with the grinding bucket (1) is opened in the grinding bucket (1). The ore fragments are ground in multiple stages in the grinding groove (10) by the grinding roller (6) to achieve fine grinding of the ore fragments. The secondary crushing mechanism (4) installed on the mounting frame (2) realizes secondary crushing processing of ore fragments; The secondary crushing mechanism (4) includes a crushing box (41), in which two sets of crushing rollers (42) are rotatably arranged. One end of each set of crushing rollers (42) passes through the crushing box (41) and is provided with a drive gear (43). One set of crushing rollers (42) is provided with a motor (44) at the other end, and the other set of crushing rollers (42) is provided with a first bevel gear (45) that meshes with the linkage mechanism (5).

2. The apparatus for preparing rock powder according to claim 1, characterized in that: The upper end of the crushing box (41) is provided with a feed hopper (46), the lower end of the crushing box (41) is provided with a discharge hopper (47), and a support frame (201) for supporting the crushing box (41) is fixedly connected to the mounting frame (2).

3. The apparatus for preparing rock powder according to claim 2, characterized in that: The upper end of the grinding roller (6) is provided with an upper conical surface (61), and the end of the upper conical surface (61) is provided with a docking part (62) that connects with the linkage mechanism (5). The outer side of the grinding roller (6) is provided with multiple sets of first grinding teeth (63), and the side view cross section of the grinding roller (6) is arranged in an inverted isosceles trapezoid.

4. The apparatus for preparing rock powder according to claim 3, characterized in that: The grinding groove (10) includes a primary grinding chamber (101), a secondary grinding chamber (102), a tertiary grinding chamber (103), and a quaternary grinding chamber (104) connected sequentially from top to bottom. The upper opening diameters of the primary grinding chamber (101), secondary grinding chamber (102), tertiary grinding chamber (103), and quaternary grinding chamber (104) decrease sequentially from top to bottom. The lower opening diameters of the primary grinding chamber (101), secondary grinding chamber (102), tertiary grinding chamber (103), and quaternary grinding chamber (104) decrease sequentially from top to bottom. The inner walls of the primary grinding chamber (101), secondary grinding chamber (102), tertiary grinding chamber (103), and quaternary grinding chamber (104) are provided with multiple sets of second grinding teeth (105).

5. The apparatus for preparing rock powder according to claim 4, characterized in that: The distance between the inner wall of the first-stage grinding chamber (101) and the outer wall of the grinding roller (6) is greater than the distance between the inner wall of the second-stage grinding chamber (102) and the outer wall of the grinding roller (6). The distance between the inner wall of the second-stage grinding chamber (102) and the outer wall of the grinding roller (6) is greater than the distance between the inner wall of the third-stage grinding chamber (103) and the outer wall of the grinding roller (6). The distance between the inner wall of the third-stage grinding chamber (103) and the outer wall of the grinding roller (6) is greater than the distance between the inner wall of the fourth-stage grinding chamber (104) and the outer wall of the grinding roller (6).

6. The apparatus for preparing rock powder according to claim 5, characterized in that: The linkage mechanism (5) includes a connecting shaft (51) rotatably mounted on the mounting frame (2). The upper end of the connecting shaft (51) is provided with a second bevel gear (52) meshing with the first bevel gear (45). The lower end of the connecting shaft (51) is fixedly connected with a connecting flange (53) that fits against the docking part (62). Multiple sets of fastening bolts (54) that are bolted to the docking part (62) are inserted into the connecting flange (53). The mounting frame (2) is provided with a protective cover (3) that covers the first bevel gear (45) and the second bevel gear (52).

7. The apparatus for preparing rock powder according to claim 6, characterized in that: The lower end of the grinding bucket (1) is fixedly connected to a discharge pipe (7) that communicates with the fourth-stage grinding chamber (104). Multiple sets of support legs (8) are provided on the outside of the grinding bucket (1). An annular enclosure (9) is provided on the upper end of the grinding bucket (1).

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