Rotary drum device with automatic door closing function

Abstract

The invention discloses a rotary drum device with an automatic door closing function and relates to the field of testing equipment for the viscosity index of bituminous coal. The rotary drum device comprises a front bearing frame, a rear bearing frame, a driving wheel, a driven wheel, a translational nut, a lead screw, a rotary drum, a low-resistance piston, a fixed door, a movable door, a hopper, a sieve, a waste-material box, a door closing bracket, a door closing shaft, a door closing roller, a closing spring, a main motor and an auxiliary motor, wherein the automatic door opening is realized by common action of a movable baffle plate and the closing spring, automatic closing is realized by common action of the closing roller and the closing spring, and automatic outward pushing is realized by forward movement of the low-resistance piston in the rotary drum. The rotary drum device disclosed by the invention has the advantages that the structure is reasonable, the automatic door opening and closing and automatic material taking are achieved.

Description

technical field [0001] The invention relates to the field of bituminous coal viscosity index testing equipment, in particular to a drum device with automatic door closing function. Background technique [0002] The coking index of bituminous coal is measured by mixing a test coal sample of a certain quality and a special anthracite sample under specified conditions, heating it rapidly to form coke, and testing the strength of the obtained coke block in a drum of a certain specification. The caking index is a key indicator for judging the caking and coking properties of coal. Therefore, it is meaningful to design a drum device with automatic door closing. [0003] At present, most of the domestic and foreign countries use semi-automatic experimental methods to measure the cohesion index of bituminous coal: put the test coal block into the drum, close the door of the drum manually, and then start the motor to drive it. The coal sample inside is swept into the sieve for weigh...

AI Technical Summary

Problems solved by technology

Fully automated equipment is rarely seen in foreign countries. There are two reasons: first, closing the door of the drum usually requires manual operation, which is difficult to automate; but it is difficult to automatically remove the coal sample from the drum after the experiment

However, the manual operation of closing the door and sampling in the drum makes the labor intensity of the workers high and the working environment is harsh.

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