Pulverized coal pyrolyzing furnace with material homogenizing structure

Abstract

The invention relates to a pulverized coal pyrolyzing furnace with a material homogenizing structure. The pulverized coal pyrolyzing furnace with the material homogenizing structure mainly comprises afurnace body, radiant pipes and the material homogenizing structure, wherein the multiple layers of radiant pipes are arranged in a furnace chamber so as to form an empty area; the material homogenizing structure is arranged in the neutral area, and comprises a distributing cap and a connecting part; the head part of the distributing cap is in a circular arc shape; the connecting part is arrangedon a wing plate of the distributing cap and is connected with a furnace wall so as to fix the distributing cap onto the furnace wall. According to the pulverized coal pyrolyzing furnace with the material homogenizing structure provided by the invention, the distributing structure is arranged in the empty area, so that not only is a certain homogenizing effect achieved on pulverized coal, but alsoa certain buffer effect is achieved on the pulverized coal during a falling process, and meanwhile, the collision loss of equipment and the furnace body caused by the pulverized coal is reduced; theblowing down time of the pulverized coal in the empty area is prolonged; in addition, the pulverized coal in the neutral area can be effectively homogenized and better contacts the radiant pipes, so that a pyrolysis effect of the pulverized coal at the part is improved, and the product quality is ensured.

Description

technical field [0001] The invention relates to the technical field of pyrolysis, in particular to a pulverized coal pyrolysis furnace with a uniform material structure. Background technique [0002] Heat transfer (or heat transfer, heat transfer) is a physical phenomenon in physics. It is the process of transferring heat energy from high temperature to low temperature. There are three ways of heat transfer: heat conduction, heat convection and heat radiation; among them, heat conduction refers to In the case of no relative displacement of matter, the heat energy transfer phenomenon that occurs when objects with different temperatures inside the object or objects of different temperatures are in direct contact; convective heat transfer, also known as heat convection, refers to the flow of fluid caused by the macroscopic motion of the fluid. The relative displacement between parts, the heat transfer process caused by the mixing of hot and cold fluids; thermal radiation is a h...

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Problems solved by technology

Due to the design characteristics of the furnace body, the horizontal interval of the radiant tubes in the local area of ​​the furnace suddenly increases, and there is a large gap area, so that the pulverized coal falling here cannot collide with the radiant tubes well, which will bring The following problems: 1. Since the pulverized coal cannot collide with the radiant tube well, the falling speed cannot be buffered by the radiant tube, so that the time for the pulverized coal to pass through the heating furnace is accelerated, which is far less than the optimal shutdown time of the pulverized coal (5-10s ); Secondly, due to the inability to contact the radiant tube, the heating effect of the pulverized coal in this area becomes poor, and finally the pyrolysis reaction cannot be fully carried out, and the product quality is not good; 2. Since the pulverized coal cannot collide well with the radiant tube Contact, the falling speed cannot be effectively buffered, the falling speed becomes faster, the impact on the equipment and the furnace body collided is increased, and the wear and tear of the equipment and furnace body is increased

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