Method for quickly carbonizing lignite at high temperature and equipment thereof

A high-temperature carbonization, high-temperature rapid technology, used in coke cooling, special forms of dry distillation, petroleum industry and other directions, can solve the problem of low utilization rate of lignite, and achieve the effect of strengthening the carbonization process

Active Publication Date: 2013-02-27
刘光
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to overcome the shortcoming of the low utilization rate of lignite, and provide a high-temperature rapid carbonization method of lignite, and another object of the present invention is to provide equipment used in the method

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  • Method for quickly carbonizing lignite at high temperature and equipment thereof
  • Method for quickly carbonizing lignite at high temperature and equipment thereof

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Embodiment Construction

[0013] combine figure 1 , full-automatic lignite high-temperature carbonization vertical kiln, including 12 circular kiln bodies, the kiln height and diameter are determined according to the actual production volume, the general kiln height is 3-50 meters, the kiln body diameter is 1-10 meters, and it is designed to feed 25 tons at a time , the height of the kiln body used is 15 meters, the diameter of the kiln body is 2 meters, and the wall of the kiln body is composed of a refractory brick layer 6, an insulation layer 5 and a kiln body shell 4, which have the functions of heat preservation and preventing heat loss; the kiln body 12 is placed on the concrete base 7, there is a discharge space under the base 7, so as to facilitate the discharge and placement of the charging device; the upper part of the kiln body is the feed port 2 and the air induction port connected with the induced draft fan 1, and the lower part has a discharge port 8. The mouth 8 has an automatic control ...

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Abstract

The invention discloses a method for quickly carbonizing lignite at high temperature, which comprises the following steps of: (1) carbonizing at high temperature in a kiln: putting a lignite raw material into a full-automatic lignite high-temperature carbonization vertical kiln, preheating in a 600-1,000DEG C preheating area, and performing anoxic high-temperature carbonization at the temperature of between 1,400 and 1,700DEG C for 10 to 15 minutes; and (2) quickly carbonizing and cooling under the oxygen-free condition: putting the lignite carbonized at high temperature into a lignite high-temperature carbonization water-bath cooling device, cooling to the temperature below 600DEG C in a water bath under the enclosed oxygen-free environment, and stacking and cooling to room temperature under the enclosed oxygen-free environment to obtain the product. The invention also discloses equipment used in the method, namely a full-automatic lignite high-temperature carbonization vertical kiln and a lignite high-temperature carbonization water-bath cooling device. The lignite raw material with low heat value becomes the product with high heat value through the full-automatic lignite high-temperature carbonization vertical kiln, and can serve as a raw material for producing active carbon, organic carbon, refined carbon, carbon powder and other series products; and the utilization rate of the lignite is improved.

Description

technical field [0001] The invention relates to the field of lignite processing and utilization, in particular to a high-temperature rapid carbonization method of lignite, and also relates to equipment used in the method. Background technique [0002] The world is rich in lignite resources, but it has low calorific value and high water content, so it is difficult to use directly, with low efficiency and low utilization rate. Generally, it must be treated and processed before it can become a widely used product, such as: liquefaction power generation, coking , Synthetic ammonia, etc. At present, the more advanced lignite processing method is the lignite drying method, which is the most advanced in the United States and uses microwave technology for drying. In our country, these lignite utilization technologies are limited by the use of lignite due to the poor quality of lignite itself, resulting in waste of resources. In the current situation of energy depletion, it is of pos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B57/16C10B53/04C10B39/02
Inventor 刘光
Owner 刘光
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