CN104815715A - Selective crusher - Google Patents

Abstract

The invention discloses a selective crusher, which comprises a machine body, which is provided with a material inlet, and correspondingly installed between the material inlet and the lower discharge port, movable unit movable gear rollers and fixed on the machine body The fixed toothed roller, the unit movable toothed roller is connected with the adjustable pressure spring group, the adjustable pressure spring group can adjust the pressure on the unit movable toothed roller, the fixed toothed roller is connected with the fixed roller motor, and the fixed roller motor is installed on both sides of the machine body. The fixed tooth roller is driven to rotate by the fixed roller motor. The beneficial effect of the invention is to provide a mechanical device capable of selectively crushing materials and improve the crushing efficiency.

Description

a selective crusher

technical field

The invention belongs to the technical field of mechanical equipment and relates to a selective crusher.

Background technique

China is rich in coal resources with a complete range of coal types, but the distribution of coal types varies greatly, and their quantity and distribution are extremely unbalanced. Among China's abundant coal resources, coking coal, fat coal, lean coal and other major coking coals are scarce. At present, almost all medium coal in China's main coking coal preparation plants is used as fuel, which is undoubtedly a great waste of China's scarce coal. Medium coal is a by-product in the process of coal washing and processing, and it is an intermediate product after various coal preparation processes have enriched and recovered clean coal and discharged tailing coal. Its basic feature is that compared with raw coal, the content of minerals and sulfur in coal is high, and its calorific value is low. For these reasons, the product price of medium coal is much lower than that of clean coal. Therefore, studying how to maximize the recovery of clean coal products from medium coal and improve the utilization rate of medium coal is an effective way to reduce coal preparation production costs, increase profitability, and save energy. The significance of selective crushing equipment for medium coal re-election lies in the selective crushing of incoming materials to achieve the dissociation of coal and gangue without crushing gangue with high hardness, thereby reducing energy consumption and saving crushing costs.

Contents of the invention

The object of the present invention is to provide a selective crusher, which solves the existing problems of low crushing efficiency due to the need for sorting when crushing different materials.

The technical scheme adopted by the present invention includes a machine body, which is provided with a material inlet, and correspondingly installed between the material inlet and the lower discharge port are movable unit movable tooth rollers and fixed tooth rollers fixed on the body. Roller, the unit movable toothed roller is connected with an adjustable pressure spring group, the adjustable pressure spring group can adjust the pressure on the unit movable toothed roller, the fixed toothed roller is connected with the fixed roller motor, the fixed roller motor is installed on both sides of the machine body, the fixed toothed roller The rotation is driven by the fixed roller motor.

The beneficial effect of the invention is to provide a mechanical device capable of selectively crushing materials and improve the crushing efficiency.

Description of drawings

Fig. 1 is a schematic structural view of crushing equipment of the present invention;

Fig. 2 is a top view of the crushing equipment of the present invention.

In the figure: 1-body, 2-adjustable pressure spring group, 3-feed inlet, 4-unit movable toothed roller, 5-fixed roller, 6-discharge port, 7-fixed toothed roller motor.

Detailed ways

The present invention will be described in detail below in combination with specific embodiments.

As shown in Fig. 1 and Fig. 2, the selective crusher of the present invention comprises a body 1, which is provided with a feed port 3, and is equipped with a movable part between the feed port 3 and the discharge port 6 below The unit movable toothed roller 4 and the fixed toothed roller 5 fixed on the body 1, the unit movable toothed roller 4 is connected with the adjustable pressure spring group 2, the adjustable pressure spring group 2 can adjust the pressure on the unit movable toothed roller 4, the fixed The toothed roller 5 is connected to the fixed roller motor 7, and the fixed roller motor 7 is installed on both sides of the body 1, and the fixed toothed roller 5 is driven to rotate by the fixed roller motor 7.

According to the hardness difference between different ores, the present invention performs selective crushing to realize a crushing process in which low hardness is crushed and high hardness is not crushed. When in use, the material enters the selective crusher through the feed port 3, and the fixed toothed roller 5 is driven to rotate by the fixed roller motor 7, and is squeezed between the fixed toothed roller 5 and the unit movable toothed roller 4 to generate a downward movement direction. Extrusion and splitting force, the material is brought into the crushing area with the rotation of the toothed rollers, and selectively crushed according to the hardness of the material. When the extrusion force between the toothed rollers is less than the deformation force of the adjustable pressure spring group 2, The material is crushed by the toothed rollers, otherwise the movable unit roller 4 is moved laterally by the extrusion force of the material, and the adjustable pressure spring group 2 is deformed, so that the crushing diameter becomes larger and the material passes through, and the material is finally discharged from the machine body 1 through the discharge port 6. The size of the pressing force between the fixed toothed roller 5 and the unit movable toothed roller 4 can be controlled and adjusted by replacing the adjustable pressure spring group 2, so as to achieve the purpose of only crushing materials with low hardness and not materials with high hardness. This equipment uses the principle of extrusion crushing and the principle of spring force deformation, and is a selective crushing equipment.

The present invention also has the advantage that: according to the principle of energy consumption, the crushing process is a process of energy consumption, so reducing unnecessary crushing energy consumption as much as possible is a problem that should be considered in reducing production energy consumption. The selective crusher does not crush high-hardness materials, but only crushes low-hardness materials. The hardness here is relative to the hardness difference between minerals. Therefore, under the condition of realizing mutual dissociation between different minerals, the purpose of reducing energy consumption as much as possible, and reducing production and operation costs.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any simple modifications made to the above embodiments according to the technical essence of the present invention, equivalent changes and modifications, all belong to this invention. within the scope of the technical solution of the invention.

Claims (1)

1. A selective crusher, characterized in that: comprising a body (1), the body (1) is provided with a feed port (3), between the feed port (3) and the discharge port (6) below Correspondingly, a movable unit toothed roller (4) and a fixed toothed roller (5) fixed on the body (1) are installed, and the unit movable toothed roller (4) is connected with an adjustable pressure spring group (2), which can The adjustable pressure spring group (2) can adjust the pressure on the movable toothed roller (4) of the unit, the fixed toothed roller (5) is connected to the fixed roller motor (7), and the fixed roller motor (7) is installed on both sides of the machine body (1). The fixed toothed roller (5) is driven to rotate by the fixed roller motor (7).