Calcium carbonate grinding machine

Abstract

The utility model discloses a calcium carbonate grinding machine which comprises a grinding barrel, the top of the grinding barrel is fixedly connected with a smashing box, a crushing assembly used for conducting smashing treatment on calcium carbonate raw materials is arranged in the smashing box, and the bottom of the smashing box is communicated with the interior of the grinding barrel. A grinding assembly used for finely grinding the crushed calcium carbonate raw material is arranged in the grinding barrel, two sets of mounting rods are symmetrically and fixedly connected to the inner wall of the grinding barrel, and the crushing box and the crushing assembly are arranged to be matched for use, so that the large calcium carbonate raw material can be crushed in advance; the pre-crushed calcium carbonate raw material particles are small and are easier to be further refined in the subsequent grinding process, so that the workload of a grinding machine can be reduced, the grinding efficiency is improved, the production speed is accelerated, in addition, the pre-crushed calcium carbonate raw material is easier to form uniform particle distribution in the grinding process, and the product quality is improved. Therefore, the uniformity and the quality stability of the product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbonate processing, in particular to a calcium carbonate grinding machine. Background Art

[0002] Calcium carbonate is an inorganic compound, commonly known as graystone, limestone, stone powder, marble, etc. Calcium carbonate is neutral and basically insoluble in water, but soluble in hydrochloric acid. It is one of the common substances on the earth and exists in rocks such as aragonite, calcite, chalk, limestone, marble, travertine, etc. It is also the main component of animal bones or shells. With the widespread application of calcium carbonate materials in coatings, plastics, rubber, papermaking and other industries, the quality and fineness requirements of calcium carbonate powder are also increasing. As the core equipment in the production process of calcium carbonate powder, the technical development of calcium carbonate grinder is particularly important.

[0003] However, most of the calcium carbonate grinders currently on the market adopt a single grinding method, that is, the material is discharged after only one grinding process in the grinder. The single grinding method makes the material stay in the grinder for a relatively short time, resulting in insufficient contact and friction between the material and the grinding element, thereby affecting the grinding efficiency. This problem is particularly prominent when processing high-hardness and high-density calcium carbonate raw materials, resulting in a low output rate of calcium carbonate powder and uneven particle size distribution. Therefore, we need to propose a calcium carbonate grinder. Utility Model Content

[0004] The utility model aims to provide a calcium carbonate grinder, aiming to solve the problem that most calcium carbonate grinders in the prior art adopt a single grinding method, that is, the material is discharged after only one grinding process in the grinder. The single grinding method makes the residence time of the material in the grinder relatively short, resulting in insufficient contact and friction between the material and the grinding element, thereby affecting the grinding efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A calcium carbonate grinder comprises a grinding barrel, the top of which is fixedly connected to a crushing box, the interior of which is provided with a crushing assembly for crushing calcium carbonate raw materials, the bottom of which is communicated with the interior of the grinding barrel, the interior of which is provided with a grinding assembly for finely grinding the crushed calcium carbonate raw materials, two groups of mounting rods are symmetrically fixedly connected to the inner wall of the grinding barrel, baffles are fixedly connected to opposite ends of the two groups of mounting rods, a groove is provided at the bottom of the baffle, and the grinding assembly is located below the baffle.

[0007] Preferably, the crushing assembly includes two groups of crushing rollers, both ends of which are rotatably mounted on the inner walls of the crushing box on both sides, one end of each group of crushing rollers passes through the crushing box and is fixedly connected to gears, the two groups of gears are meshed with each other, and one end of one group of crushing rollers passes through the crushing box and is connected to a first driving motor.

[0008] Preferably, the first drive motor is fixedly mounted on a side wall of the pulverizing box, and one end of the output shaft of the first drive motor is fixedly connected to one end of one group of pulverizing rollers.

[0009] Preferably, the grinding assembly includes a second drive motor, which is fixedly mounted on the inner top of the groove, one end of the output shaft of the second drive motor is fixedly connected to a transmission rod, and the bottom end of the transmission rod is fixedly connected to a grinding cone.

[0010] Preferably, it also includes a grinding disc matched with the grinding cone, the grinding cone is arranged in the inner cavity of the grinding disc, and a material drop opening is opened at the bottom of the grinding disc.

[0011] Preferably, the tops of the two groups of mounting rods are both provided with arc-shaped portions, and the top of the baffle is provided with a conical portion.

[0012] Preferably, a feed hopper is fixedly installed on the top of the crushing box, a discharge pipe is fixedly connected to the bottom of the grinding barrel, and a valve is provided on the outer wall of the discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can pre-crush large pieces of calcium carbonate raw material by setting a crushing box and a crushing component for use together. The pre-crushed calcium carbonate raw material has smaller particles and is easier to be further refined in the subsequent grinding process, which can reduce the workload of the grinder, improve the grinding efficiency, and thus speed up the production speed. In addition, the pre-crushed calcium carbonate raw material is more likely to form a uniform particle distribution during the grinding process, thereby improving the uniformity and quality stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the shaft side of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure inside the grinding barrel of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the grinding component of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the crushing component of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the installation rod and baffle of the utility model.

[0021] In the figure: 1. grinding barrel; 2. crushing box; 3. crushing assembly; 301. crushing roller; 302. gear; 303. first drive motor; 4. grinding assembly; 401. second drive motor; 402. transmission rod; 403. grinding cone; 5. mounting rod; 6. baffle; 7. groove; 8. grinding disc; 9. drop opening; 10. arc portion; 11. conical portion; 12. feed hopper; 13. discharge pipe. DETAILED DESCRIPTION

[0022] 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 in 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.

[0023] See also Figure 1-6 , the utility model provides a technical solution:

[0024] A calcium carbonate grinder comprises a grinding barrel 1, a crushing box 2 is fixedly connected to the top of the grinding barrel 1, a crushing assembly 3 for crushing calcium carbonate raw materials is arranged inside the crushing box 2, the bottom of the crushing box 2 is communicated with the inside of the grinding barrel 1, a grinding assembly 4 for finely grinding the crushed calcium carbonate raw materials is arranged inside the grinding barrel 1, two groups of mounting rods 5 are symmetrically fixedly connected to the inner wall of the grinding barrel 1, baffles 6 are fixedly connected to the opposite ends of the two groups of mounting rods 5, a groove 7 is provided at the bottom of the baffle 6, and the grinding assembly 4 is located below the baffle 6. The utility model can pre-crush large pieces of calcium carbonate raw materials by setting the crushing box 2 and the crushing assembly 3 for use in coordination, and the pre-crushed calcium carbonate raw materials have smaller particles and are easier to be further refined in the subsequent grinding process, which can reduce the workload of the grinder, improve the grinding efficiency, and thus speed up the production speed. In addition, the pre-crushed calcium carbonate raw materials are more likely to form a uniform particle distribution during the grinding process, thereby improving the uniformity and quality stability of the product;

[0025] The crushing assembly 3 includes two groups of crushing rollers 301, both ends of which are rotatably mounted on the inner walls of the crushing box 2, one end of each group of crushing rollers 301 passes through the crushing box 2 and is fixedly connected to a gear 302, the two groups of gears 302 are meshed with each other, and one end of one group of crushing rollers 301 passes through the crushing box 2 and is connected to a first driving motor 303;

[0026] The first driving motor 303 is fixedly mounted on a side wall of the crushing box 2, and one end of the output shaft of the first driving motor 303 is fixedly connected to one end of one set of crushing rollers 301;

[0027] Specifically, the output shaft of the first driving motor 303 can drive one set of crushing rollers 301 to rotate, thereby driving the other set of crushing rollers 301 to rotate through the transmission of the two sets of gears 302, thereby pre-crushing the calcium carbonate raw material;

[0028] The grinding assembly 4 includes a second driving motor 401, which is fixedly mounted on the inner top of the groove 7, one end of the output shaft of the second driving motor 401 is fixedly connected to a transmission rod 402, and the bottom end of the transmission rod 402 is fixedly connected to a grinding cone 403;

[0029] It also includes a grinding disc 8 matched with the grinding cone 403, the grinding cone 403 is arranged in the inner cavity of the grinding disc 8, and a material drop opening 9 is opened at the bottom of the grinding disc 8;

[0030] Specifically, the output shaft of the second driving motor 401 can drive the transmission rod 402 to rotate, thereby driving the grinding cone 403 to rotate, and then finely grinding the crushed calcium carbonate raw material. The pre-crushed calcium carbonate raw material particles are smaller and easier to be further refined in the subsequent grinding process, which is beneficial to improving the grinding efficiency of calcium carbonate, thereby speeding up the production speed;

[0031] The tops of the two sets of mounting rods 5 are both provided with arc-shaped portions 10, and the tops of the baffles 6 are provided with conical portions 11, which can avoid blocking the falling calcium carbonate raw materials and avoid causing waste of raw materials;

[0032] A feed hopper 12 is fixedly installed on the top of the crushing box 2. By setting up the feed hopper 12, the staff can inject the calcium carbonate raw material into the interior of the crushing box 2 through the feed hopper 12 for crushing. A discharge pipe 13 is fixedly connected to the bottom of the grinding barrel 1. A valve is provided on the outer wall of the discharge pipe 13. The finely ground calcium carbonate powder can be discharged through the discharge pipe 13, which is convenient for its unified collection and treatment.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calcium carbonate grinding machine, comprising a grinding barrel (1), characterized in that: The top of the grinding barrel (1) is fixedly connected to a crushing box (2), the interior of the crushing box (2) is provided with a crushing assembly (3) for crushing the calcium carbonate raw material, the bottom of the crushing box (2) is connected to the interior of the grinding barrel (1), the interior of the grinding barrel (1) is provided with a grinding assembly (4) for finely grinding the crushed calcium carbonate raw material, two groups of mounting rods (5) are symmetrically fixedly connected to the inner wall of the grinding barrel (1), the opposite ends of the two groups of mounting rods (5) are fixedly connected to baffles (6), the bottom of the baffles (6) is provided with a groove (7), and the grinding assembly (4) is located below the baffles (6).

2. A calcium carbonate grinding machine according to claim 1, characterized in that: The crushing assembly (3) comprises two groups of crushing rollers (301), the two ends of the two groups of crushing rollers (301) are rotatably mounted on the inner walls of the crushing box (2) at both sides, one end of the two groups of crushing rollers (301) passes through the crushing box (2) and is fixedly connected to a gear (302), the two groups of gears (302) are meshed with each other, and one end of one group of crushing rollers (301) passes through the crushing box (2) and is connected to a first driving motor (303).

3. A calcium carbonate grinding machine according to claim 2, characterized in that: The first driving motor (303) is fixedly mounted on a side wall of the crushing box (2), and one end of the output shaft of the first driving motor (303) is fixedly connected to one end of one set of crushing rollers (301).

4. A calcium carbonate grinding machine according to claim 1, characterized in that: The grinding assembly (4) comprises a second drive motor (401), the second drive motor (401) is fixedly mounted on the inner top of the groove (7), one end of the output shaft of the second drive motor (401) is fixedly connected to a transmission rod (402), and the bottom end of the transmission rod (402) is fixedly connected to a grinding cone (403).

5. A calcium carbonate grinding machine according to claim 1, characterized in that: It also includes a grinding disc (8) matched with the grinding cone (403), the grinding cone (403) is arranged in the inner cavity of the grinding disc (8), and a material drop opening (9) is opened at the bottom of the grinding disc (8).

6. A calcium carbonate grinding machine according to claim 1, characterized in that: The tops of the two groups of mounting rods (5) are both provided with arc-shaped portions (10), and the top of the baffle (6) is provided with a conical portion (11).

7. A calcium carbonate grinding machine according to claim 1, characterized in that: A feed hopper (12) is fixedly mounted on the top of the crushing box (2), a discharge pipe (13) is fixedly connected to the bottom of the grinding barrel (1), and a valve is arranged on the outer wall of the discharge pipe (13).

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