Steam calcining furnace under pressure

Abstract

The invention discloses a steam calcining furnace under pressure, which mainly consists of a raw material cabin, a feeding cabin, a furnace body and a steam inlet shaft, wherein a reaction cavity is arranged inside the furnace body, the feeding cavity is communicated with the front end of the furnace body, a transmission device is arranged outside the furnace body, the raw material cabin and the feeding cabin are communicated through a three-stage material conveying device, the front end of the furnace body is a gas outlet cavity, a furnace gas outlet is arranged on the gas outlet cavity, the steam inlet shaft is communicated with the back end of the furnace body, a steam inlet is arranged on the steam inlet shaft, a middle cabin is also arranged between the steam inlet shaft and the furnace body, a finished product cabin is communicated on the middle cabin, a heating pipe is arranged in a reaction cavity of the furnace body, and a pipeline opening of the heating pipe is communicated with the steam inlet passage of the steam inlet shaft. The steam calcining furnace under pressure realizes the continuous dewatering or production of materials, the material loss is reduced, the work environment of the production site is improved, and the pollution is reduced. In addition, the generated furnace gas can also be recovered and utilized, the resource waste is reduced, and further energy-saving and environment-protection effects are realized.

Description

Technical field [0001] The invention relates to a steam calciner, in particular to a pressurized steam calciner. Background technique [0002] The steam calciner is an important equipment for the production of building materials. Its specific function is to achieve the purpose of dehydration (including dehydrated water and free water) under a certain pressure through heat exchange between steam and materials. The steam calciner of the traditional structure is composed of a feed port, a furnace head part, a furnace body part, a steam inlet shaft and a transmission device. High temperature steam is introduced into the furnace body through the steam inlet shaft, so that the furnace head, The materials in the furnace body are heated or reacted to achieve the purpose of heating decomposition and dehydration. Then, the dehydrated product is discharged through the furnace head, and the transmission device plays the role of driving the furnace body to rotate. The furnace body of the tra...

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Problems solved by technology

The furnace body of the traditional steam calciner cannot withstand the pressure required by the process, and cannot guarantee that the material will remove crystal water and free water under a certain temperature and pressure. The dehydration efficiency is low, and the finished materials produced are not conducive to separation and discharge, and cannot meet industrialization Large production needs

[0003] In the process of feeding and discharging the traditional structure of the calciner, under the action of the pressure in the furnace, it is easy to have difficulty in feeding and discharging the material or the situation that the material cannot be fed in and out, and it is also not conducive to the discharge of the furnace gas.

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