Rotary drum screen special for gunpowder

Abstract

The invention discloses a rotary drum screen special for gunpowder. The rotary drum screen comprises a rotary drum type screen box, a net cage is installed at the position, below two air cylinders, in the screen box, and material guiding belts are uniformly installed on the circumferential inner wall of the net cage; a net clearing roller matched with a rotary drum in lifting is parallely installed at the top of the rotary drum, two vibrators are installed at the two ends of the net clearing roller respectively, a damper spring is arranged between each vibrator and the corresponding air cylinder head, an explosion-proof motor is installed at the outer end of a transmission shaft of the rotary drum, a feed pipe is installed in a hollow shaft at the other end of the rotary drum from the upper portion of the outer end to the inside of the rotary drum, and a spray pipe is installed below the feed pipe from the outer end of the hollow shaft to the inside of the rotary drum; a material receiving barrel is arranged below each discharge port, a filtering bag is installed in each material receiving barrel, a transparent drain pipe is installed on the side wall, above a coarse material outlet, of the bottom of the screen box, a drain valve is installed at the outer end of the drain pipe, and a filter core is installed in the drain valve.

Description

technical field [0001] The invention relates to sieving, in particular to a drum sieve specially used for sieving inflammable and explosive materials. Background technique [0002] Existing trommel screens are equipped with a screen box on a screen frame, a drum is installed in the screen box, and a feed port is installed at one end of the drum from the hole mandrel, and the other end of the drum is driven. A deceleration motor is installed on the shaft, and there is a coarse material outlet under the screen box at the other end, a fine material outlet under the screen box, and a receiving hopper under each outlet. Two symmetrical cylinders are installed on the upper cover of the machine, and a vibrator is connected between each cylinder head and the drum. This rolling sieve is very suitable for sieving general materials, but it cannot be used to sieve flammable and explosive gunpowder materials. At present, the screening of gunpowder is carried out manually, which has the...

AI Technical Summary

Problems solved by technology

This rolling sieve is very suitable for sieving general materials, but it cannot be used to sieve flammable and explosive gunpowder materials.

At present, the screening of gunpowder is carried out manually, which has the disadvantages of low work efficiency, time-consuming and labor-intensive

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