Simple drum type screen

Abstract

The invention relates to a material screening tool, particularly to a simple drum type screen. The simple drum type screen comprises a screen drum, a screen drum middle shaft, a material collecting box and a rotary device; the screen drum is installed on the material collecting box through a screen cylinder middle shaft; any end of the screen drum is provided with a feeding hole; any end of the screen drum middle shaft is connected with the rotary device; the rotary device drives the screen drum to rotate with the screen drum middle shaft serving as a center; the rotary device comprises a connecting rod and a handle; one end of the connecting rod is connected with the screen drum middle shaft and the other end is provided with the handle; two ends of the screen drum are respectively provided with a screen drum sealing cover; the screen drum middle shaft passes centers of the screen drum sealing covers and extends to bilateral sides to two opposite lateral walls of the material collecting box. The simple drum type screen has the advantages of being simple in structure, low in production costs, large in screening material amount in every time, saving labor, improving the screen utilization efficiency and relieving the heavy screening work.

Description

technical field [0001] The invention relates to a material screening tool, in particular to a simple drum type sieve. Background technique [0002] In daily life, we often use sieves to separate coarse and fine particles of materials. At present, the sieves we commonly use are mainly reciprocating sieves. By alternately exerting force on both sides of the sieve, the particles are separated by gravity and material inertia. Conventional reciprocating sieves are as follows: Problems: (1) The amount of materials input each time is small. Since there is only one contact surface between the screen and the material, the amount of material should not be too much each time, otherwise the coarse material below will block the fine material from going down, and the screening of the material will not be complete; (2) It is labor-intensive. When sieving materials, it is necessary to use both hands to hold the sieve back and forth, and at the same time bear the weight of the materials; (3...

AI Technical Summary

Problems solved by technology

Since there is only one contact surface between the screen and the material, the amount of material should not be put in too much each time, otherwise the coarse material below will block the fine material from going down, and the material screening will not be complete; (2) It is labor-intensive

When sieving materials, it is necessary to use both hands to hold the sieve back and forth, and at the same time bear the weight of the materials; (3) The utilization efficiency of the screen is low

The contact surface between the sieve and the material is limited, the coarse material blocks the sieve hole, and the fine material should not be sieved out

When the material is sand and soil with high water content, the above problems will become more obvious, and the sieve hole will be blocked seriously, and the screening operation will be difficult.

Images