Revolving furnace

Abstract

The invention discloses a rotary furnace, aiming to solve manual feeding and discharging problem of the batch rotary furnace. The inventive rotary furnace comprises a rotary drum and a feeding and discharging device, wherein the feeding and discharging device is disposed at the feeding and discharging end of the rotary drum and extrudes into the rotary drum; spiral baffles are distributed on the inner wall of the rotary drum in equal interval, two symmetric discharge guide plates are disposed at the feeding and discharging end of the rotary drum in radial direction, and when feeding, a screw rod of the feeding and discharging device and the rotary drum perform forward rotation at the same time, so as to automatically feed to the rotary drum; when discharging, the rotary drum rotates in reverse direction, the materials in the rotary drum are introduced into the discharge device via the spiral baffles and the discharge guide plates, and the screw rod of the feeding and discharging device and the rotary drum perform reverse rotation at the same time, so as to automatically discharge. The inventive rotary furnace has the advantages of convenient feeding and discharging, simple structure, convenient operation, uniform material heating and low floor area; and is suitable for calcinating small or medium-scaled catalyst or carrier and high-temperature drying material.

Description

technical field [0001] The invention relates to a rotary kiln, in particular to a rotary kiln for catalyst or carrier roasting. Background technique [0002] At present, there are two main types of equipment used for catalyst and carrier roasting: one is static roasting equipment, such as muffle furnaces, tunnel kilns, etc., and its disadvantage is that materials are not heated evenly in a static state; the other is rotary kilns, and It is divided into intermittent rotary furnace and continuous rotary furnace. Because the rotary furnace can stir and mix the materials, the materials are heated evenly in it, so the roasting effect of the rotary kiln is better than that of the static roasting equipment, and the roasting of industrial catalysts and carriers. Most of the roasting equipment used is a rotary kiln. [0003] Chinese invention patents CN101026576A and CN101017057A disclose a continuous rotary kiln, through the rotation of the drum and the cooperation of the inclinati...

AI Technical Summary

Problems solved by technology

The continuous rotary furnace is suitable for continuous production and is easy to operate, but it has disadvantages such as complex structure, high manufacturing cost, and large floor space, and is not suitable for small and medium-scale production requirements.

[0004] Chinese utility model patent CN2697459Y discloses an intermittent rotary kiln that can be used for roasting catalysts and carriers in small and medium scales, but manual loading and unloading is required

Images