Double-layer drum screen

Abstract

The invention discloses a double-layer drum screen which comprises a base plate. The bottom end of a rack is fixedly connected to the two sides of the upper end face of the base plate through welding,an installing plate is fixedly connected to the left side of the rack through a bolt, the bottom end face of a motor box is fixedly connected to the installing plate through a screw, a motor is installed inside the motor box, ball bearings are installed on the two sides of the rack, one end of an outer roller is fixedly sleeved with the inner walls of the ball bearings, an inner roller is sleevedwith the interior of the outer roller, an upper gear and a lower gear are installed between the outer roller and the inner roller, gear grooves corresponding to the upper gear and the lower gear areformed in one side of the inner wall of the outer roller and one side of the outer wall of the inner roller, one side of the upper gear and one side of the lower gear are installed on a support through rotating shafts, a transverse pipe is installed at the top of the rack, and the bottom of the transverse pipe is connected with a plurality of high pressure spraying heads in a through manner. The double-layer drum screen for mining is compact in structure and convenient to use.

Description

technical field [0001] The invention relates to the field of screening equipment, in particular to a double-layer drum screen. Background technique [0002] In existing industrial applications, the trommel screen is a mechanical device that screens according to different product specifications, and is mainly used for the separation of sand and gravel. Compared with the rolling screen used in construction projects, the trommel screen has a larger load-bearing capacity. Existing trommel screens generally use an intermediate shaft to drive the screen to rotate, thereby realizing the separation of sand and gravel. [0003] Most of the existing trommels are single-layer, and there is a shaft inside the drum. Due to the high quality of the ore, the shaft in the drum is easily deformed or even damaged, and only one particle size of ore can be screened during the screening process, resulting in low screening efficiency. , delaying the construction period; the existing double-deck t...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing trommels are single-layer, and there is a shaft inside the drum. Due to the high quality of the ore, the shaft in the drum is easily deformed or even damaged, and only one particle size of ore can be screened during the screening process, resulting in low screening efficiency. , delaying the construction period; the existing double-deck trommel connection structure is complex and heavy, resulting in a complex drive structure and energy consumption, and the main shaft is easy to wear in the drum

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