Composite vibration shaking table

Abstract

The utility model discloses a composite vibration table concentrator, and aims to improve the mineral separation efficiency and precision. The shaking table comprises an ore feeding groove, a water feeding groove, table strips, a table surface, springs, a base and four excitation motors. Excitation motors are symmetrically placed below a bed surface, the left excitation motor and the right excitation motor rotate reversely at a constant speed to form simple harmonic linear vibration in the X direction, the front excitation motor and the rear excitation motor rotate reversely at a constant speed to form simple harmonic linear vibration in the Z direction, and the rotating speed omega 1 of the left excitation motor and the right excitation motor is two times of the rotating speed omega 2 of the front excitation motor and the rear excitation motor. According to the Lissajous vibration synthesis principle, the four excitation motors can synthesize composite vibration in an OXZ plane, and then the bed surface is driven to conduct composite vibration. By means of the design, the movement complexity of mineral particles is increased, and the efficiency and precision of the separation process can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gravity ore dressing field, especially relates to a compound vibration shaking table belongs to an ore dressing equipment, mainly applies to modern ore dressing industrial production. BACKGROUND

[0002] The shaking table is widely applied in modern ore dressing industrial production with the advantages of high enrichment ratio, low operation cost, simple operation and maintenance, obvious zoning and no pollution, and especially cannot be replaced in the ore dressing of tungsten ore and tin ore.

[0003] The traditional shaking table is reciprocating vibration, and the upper light ore particles are separated from the lower heavy ore particles under the pushing of water flow in the transverse direction of the bed surface; the heavy ore particles in the bottom layer move to the concentrate end under the protection of the bed strip in the longitudinal direction of the bed surface. With the shortening of the length of the bed strip, the mineral particles originally in the middle layer are gradually exposed and move transversely under the action of water flow, but the movement speed is lower than that of the upper light ore particles, and the mineral particles finally spread in a fan shape along the diagonal on the bed surface according to the particle size and density under the combined action of the excitation force and water flow.

[0004] The traditional shaking table can only provide longitudinal excitation force for the mineral particles, and the transverse movement of the mineral particles can only rely on the pushing of water flow, so that the processing capacity is low and the occupied area is large. The compound vibration shaking table can make up for the lack of transverse excitation force of the traditional shaking table, ensure the accuracy of separation, and improve the mineral separation efficiency. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a compound vibration shaking table ore dressing equipment, aims at strengthening the transverse separation effect, increasing the bed layer loose degree and improving the equipment separation capacity.

[0006] The utility model aims to realize the following technical scheme:

[0007] The compound vibration shaking table is characterized by being composed of a feeding groove, a water feeding groove, a bed strip, a bed surface, a spring, a fixing bolt, a base and four excitation motors.

[0008] Further, the four excitation motors are fixedly connected with the bed surface through motor supports.

[0009] Further, the bed surface is connected with the base through the spring.

[0010] Further, the four excitation motors are divided into two groups, the four excitation motors are arranged in a circumferential symmetry mode, and the vibration planes of the motors are parallel to the bed surface.

[0011] Further, the sizes of the two excitation motors in each group are consistent, the eccentric blocks have equal masses, and the rotating speeds of the two motors are kept the same but the rotating directions are opposite.

[0012] Further, the left and right two vibration exciting motors rotate reversely at the same speed to synthesize the simple harmonic linear vibration along the X direction, the front and back two vibration exciting motors rotate reversely at the same speed to synthesize the simple harmonic linear vibration along the Z direction, and the rotating speed of the left and right two vibration exciting motors is twice of the rotating speed of the front and back two vibration exciting motors, according to the Lissajous vibration synthesis principle, the four vibration exciting motors can synthesize the compound vibration in the OXZ plane, and further drive the bed surface to perform the compound vibration.

[0013] Compared with the traditional shaking table beneficiation equipment, the utility model has the following advantages:

[0014] 1. By adopting two groups of vibration exciting motors with different frequencies and using the Lissajous compound vibration theory, the bed body of the shaking table realizes the compound vibration, enhances the transverse movement of the bed body, and promotes the transverse migration of particles.

[0015] 2. After the transverse exciting force of the bed body is increased, the looseness degree of particles on the bed surface is improved, and the separation effect of particles is enhanced.

[0016] 3. Meanwhile, the transverse exciting force is provided for particles, and the dependence degree of particles on water flow during the transverse movement is greatly reduced, so that the water supply amount can be reduced, and water resources can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the compound vibration shaking table.

[0018] Figure 2 It is a distribution schematic diagram of the vibration exciting motor group of the compound vibration shaking table.

[0019] Figure 3 It is a vibration trajectory diagram of the bed surface of the compound vibration shaking table.

[0020] In the drawing: 1, ore feeding groove; 2, water feeding groove, 3, bed strip; 4, bed surface; 5, spring; 6, base; 7, motor support; 8, baffle; a, b, c, d, vibration exciting motor. DETAILED DESCRIPTION

[0021] The embodiment provides a compound vibration shaking table, and aims to improve the separation efficiency and precision of minerals. The following is the detailed structure and implementation mode of the shaking table.

[0022] As shown in Figure 1 The utility model discloses a compound vibration shaking table, and aims to improve the separation efficiency and precision of minerals. The following is the detailed structure and implementation mode of the shaking table.

[0023] Further, the composite vibration shaker mainly comprises a working bed surface 4, bed bars 3 arranged on the bed surface 4, and a baffle 8 welded on the edge of the bed surface, a feeding groove 1 and a water feeding groove 2 bolted on the baffle 8, and two groups of exciting motors a, b, c, d bolted below the bed surface 4, and a base 6 connected to the bed surface 4 below through four springs 5.

[0024] Further, the four exciting motors a, b, c, d are divided into two groups, and the four exciting motors are arranged in a circumferential symmetry, as shown in the attached Figure 2 The vibration plane of the motor is parallel to the bed surface.

[0025] Further, the size of each group of two exciting motors is consistent, the mass of the eccentric blocks is equal, and the rotating speeds of the two motors are kept the same but the directions are opposite.

[0026] Further, the left and right two exciting motors a, b rotate at the same speed in opposite directions to synthesize a simple harmonic linear vibration along the X direction, the front and rear two exciting motors c, d rotate at the same speed in opposite directions to synthesize a simple harmonic linear vibration along the Z direction, and the rotating speed ω1 of the left and right two exciting motors is twice the rotating speed ω2 of the front and rear two exciting motors, according to the Lissajous vibration synthesis principle, the four exciting motors a, b, c, d can synthesize a composite vibration in the OXZ plane, as shown in the attached Figure 3 , which further drives the bed surface to perform a composite vibration.

Claims

1. A compound vibrating shaker, characterized in that, It is composed of feeding groove (1), water feeding groove (2), bed bar (3), bed surface (4), spring (5), base (7), four exciting machines (a, b, c, d), the compound vibration is composed of two simple harmonic linear vibrations which are perpendicular to each other and the frequency ratio is 1:

2.

2. A compound vibrating shaker bed, characterized by, The four exciting machines (a, b, c, d) are distributed below the bed surface (4), every two of the four exciting machines (a, b, c, d) is a group, symmetrically distributed and placed with the shaking table mass center as the center, the rotating speed ω1 of the left and right two exciting machines (a, b) is twice of the rotating speed ω2 of the front and back two exciting machines (c, d), the vibration plane is parallel to the bed surface (4); the size and structure of the two exciting machines (ab / cd) in each group are same, and the eccentric block mass is equal.

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