Calcite secondary crushing device

Abstract

The utility model relates to a calcite secondary crushing device which comprises a first crushing box and a second crushing box which are arranged side by side, two groups of crushing rollers are arranged in the first crushing box and are arranged side by side, first motors are arranged at the power ends of the crushing rollers, and the two groups of first motors drive the two groups of crushing rollers to rotate oppositely. Two groups of crushing rollers are arranged in the first crushing box to control primary crushing of calcite, a filter screen is arranged in the first crushing box and is positioned below the two groups of crushing rollers, and the filter screen is inclined towards the direction of the second crushing box. When crushed calcite meeting the particle size falls into the bottom of the first crushing box through a filter screen, calcite not meeting the particle size enters the second crushing box through a discharging opening, secondary crushing is conducted through the grinding mechanism, the calcite is crushed into particles meeting the size, secondary crushing can be achieved, materials are crushed thoroughly, and the working efficiency is improved. The crushing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing devices, in particular to a calcite secondary crushing device. Background Art

[0002] Calcite is a calcium carbonate mineral, and it is the most common natural calcium carbonate. Therefore, calcite is a widely distributed mineral. Calcite crystals have various shapes, and their aggregates can be clusters of crystals, or they can be granular, massive, fibrous, stalactite, soil, etc. When you hit calcite, you can get a lot of square pieces, hence the name calcite.

[0003] Existing crushers generally only crush once, and often a lot of materials with unsatisfactory crushing effects flow out, and need to be screened and crushed again, resulting in a waste of manpower and material resources and low crushing efficiency. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a calcite secondary crushing device. The specific technical scheme is as follows:

[0005] The calcite secondary crushing device comprises a first crushing box and a second crushing box arranged side by side, two groups of crushing rollers are arranged inside the first crushing box, the crushing rollers are arranged side by side, the power ends of the crushing rollers are each provided with a first motor, the two groups of the first motors drive the two groups of crushing rollers to rotate towards each other to control the initial crushing of the calcite, a filter screen is arranged inside the first crushing box and below the two groups of crushing rollers, the filter screen is inclined toward the direction of the second crushing box, a discharge port connected to the inside of the second crushing box is arranged on the side wall of the first crushing box and above the filter screen, and a grinding mechanism for secondary crushing of the calcite is arranged inside the second crushing box and below the discharge port.

[0006] As an improvement of the above technical solution, the grinding mechanism includes a grinding table arranged inside the second crushing box, a grinding disc assembly is rotatably inserted in the center of the grinding table, a fixed shaft is fixedly connected to the bottom of the grinding disc assembly, the bottom of the fixed shaft passes through the second crushing box and extends to the outside of the second crushing box, and a second motor is arranged at one end of the fixed shaft extending to the outside of the second crushing box.

[0007] As an improvement of the above technical solution, the grinding wheel assembly includes a frustoconical structure grinding wheel and a cylindrical structure grinding wheel arranged below the frustoconical structure grinding wheel, and the gap between the frustoconical structure grinding wheel and the grinding table gradually decreases from top to bottom.

[0008] As an improvement of the above technical solution, a baffle is provided on the side wall of the first crushing box and above the discharge port, and the inclination direction of the baffle is opposite to the inclination direction of the filter screen.

[0009] Beneficial effects of the utility model:

[0010] The calcite is initially crushed by two sets of crushing rollers. When the crushed calcite meets the particle size, it will fall into the bottom of the first crushing box through the filter screen, and the calcite that does not meet the particle size will enter the second crushing box through the discharge port. The grinding mechanism performs secondary crushing to crush the calcite into particles of the required size. The secondary crushing can achieve thorough material crushing with high crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the main view of the overall structure of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the crushing roller of the utility model.

[0013] Figure numerals: 1, first crushing box; 11, baffle; 12, discharge port; 2, filter screen; 3, crushing roller; 4, second crushing box; 5, grinding disc assembly; 6, grinding table; 7, second motor. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] The calcite secondary crushing device comprises a first crushing box 1 and a second crushing box 4 arranged side by side, two groups of crushing rollers 3 are arranged inside the first crushing box 1, the crushing rollers 3 are arranged side by side, and the power ends of the crushing rollers 3 are each provided with a first motor, and the two groups of the first motors drive the two groups of crushing rollers 3 to rotate in opposite directions to control the initial crushing of the calcite, a filter screen 2 is arranged inside the first crushing box 1 and below the two groups of crushing rollers 3, and the filter screen 2 is inclined toward the direction of the second crushing box 4, a discharge port 12 connected to the inside of the second crushing box 4 is arranged on the side wall of the first crushing box 1 and above the filter screen 2, and a grinding mechanism for secondary crushing of the calcite is arranged inside the second crushing box 4 and below the discharge port 12.

[0016] Calcite is poured from the feed hopper of the first crushing box 1, and is initially crushed by two sets of crushing rollers 3. When the crushed calcite meets the particle size, it will pass through the filter screen 2 and fall to the bottom of the first crushing box 1, and the calcite that does not meet the particle size will pass through the discharge port 12 into the interior of the second crushing box 4, and is secondary crushed by the grinding mechanism to crush the calcite into particles of the required size. The secondary crushing can be achieved, the material is crushed thoroughly, and the crushing efficiency is high. Moreover, filtering through the filter screen can reduce the amount of calcite that is secondary crushed, thereby accelerating the crushing efficiency of the grinding mechanism.

[0017] In one embodiment, reference Figure 1 The grinding mechanism includes a grinding table 6 arranged inside the second crushing box 4, a grinding disc assembly 5 is rotatably inserted in the center of the grinding table 6, a fixed shaft is fixedly connected to the bottom of the grinding disc assembly 5, the bottom of the fixed shaft passes through the second crushing box 4 and extends to the outside of the second crushing box 4, and a second motor 7 is arranged at one end of the fixed shaft extending to the outside of the second crushing box 4. Particles that do not meet the size in the first crushing box 1 enter the gap between the grinding table 6 and the grinding disc assembly 5 through the discharge port, and the second motor 7 drives the grinding disc assembly 5 to rotate through the fixed shaft, and cooperates with the grinding table 6 to perform secondary crushing of the calcite in the gap.

[0018] In order to improve the efficiency of secondary crushing, refer to Figure 1 The grinding wheel assembly 5 includes a truncated cone structure grinding wheel and a cylindrical structure grinding wheel arranged below the truncated cone structure grinding wheel. The gap between the truncated cone structure grinding wheel and the grinding table 6 gradually decreases from top to bottom. The calcite can be gradually crushed into particles of suitable size through the gap that gradually decreases from top to bottom. At the same time, it is convenient for calcite particles to enter the gap, avoiding blockage during the entry process.

[0019] In order to improve the efficiency of screening, refer to Figure 1 A baffle 11 is provided on the side wall of the first crushing box 1 and above the discharge port 12. The inclination direction of the baffle 11 is opposite to the inclination direction of the filter screen 2. The baffle 11 can buffer the falling calcite particles on the one hand to prevent them from falling directly onto the filter screen 2 and causing damage to the filter 2. On the other hand, the calcite particles can roll down from the highest point of the filter screen 2, extending the rolling time and facilitating screening, thereby reducing the amount of calcite particles entering the second crushing box 4.

[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Calcite secondary crushing device, characterized by: The invention comprises a first crushing box (1) and a second crushing box (4) arranged side by side, wherein two groups of crushing rollers (3) are arranged inside the first crushing box (1), the crushing rollers (3) are arranged side by side, the power ends of the crushing rollers (3) are each provided with a first motor, and the two groups of the first motors drive the two groups of crushing rollers (3) to rotate in opposite directions to control the initial crushing of calcite, a filter screen (2) is arranged inside the first crushing box (1) and below the two groups of crushing rollers (3), and the filter screen (2) is inclined toward the direction of the second crushing box (4), a discharge port (12) is arranged on the side wall of the first crushing box (1) and above the filter screen (2) and is connected to the inside of the second crushing box (4), and the inside of the second crushing box (4) is provided with a filter screen (2). A grinding mechanism for secondary crushing of calcite is provided at the bottom and below the discharge port (12); the grinding mechanism comprises a grinding table (6) provided inside the second crushing box (4); a grinding disc assembly (5) is rotatably plugged in the center of the grinding table (6); a fixed shaft is fixedly connected to the bottom of the grinding disc assembly (5); the bottom of the fixed shaft passes through the second crushing box (4) and extends to the outside of the second crushing box (4); a second motor (7) is provided at one end of the fixed shaft extending to the outside of the second crushing box (4); the grinding disc assembly (5) comprises a frustum-shaped grinding disc and a cylindrical grinding disc provided below the frustum-shaped grinding disc, and the gap between the frustum-shaped grinding disc and the grinding table (6) gradually decreases from top to bottom.

2. The calcite secondary crushing device according to claim 1, characterized in that: A baffle (11) is provided on the side wall of the first crushing box (1) and above the discharge port (12); the baffle (11) is inclined in a direction opposite to the direction of inclination of the filter screen (2).

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