A uniform coal feeding device for a three-waste mixed combustion furnace

Abstract

The invention discloses a coal feeding device for three waste mixed combustion furnace production. The coal feeding device comprises a mixed combustion furnace and coal feeders, and coal is conveyed into the mixed combustion furnace through the coal feeders. The coal feeding device is characterized in that the left side of the mixed combustion furnace is provided with two coal feeding ports, the right side of the mixed combustion furnace is also provided with two coal feeding ports, one coal feeder is connected to each coal feeding port, and the height of the coal feeding ports is larger thanthat of the horizontal central point of the mixed combustion furnace. The coal feeders are arranged on the two sides of the mixed combustion furnace separately, the coal is uniformly conveyed to the coal combustion area where the coal can not be easily conveyed in production, therefore, uniform coal feeding is achieved, the furnace hearth temperature is easy to control, operation is easy and convenient, and production is stabilized.

Description

technical field [0001] The invention relates to the technical field of process equipment for a three-waste mixed combustion furnace, in particular to a uniform coal feeding device in the production of a three-waste mixed combustion furnace. Background technique [0002] In recent years, due to the improvement of the people's life happiness index, the requirements for ecological environmental protection are higher, and the environmental protection situation of chemical enterprises is severe. The waste gas and waste residues produced by chemical enterprises are strictly prohibited from being discharged indiscriminately. Utilize and turn waste into treasure. At the same time, due to the maturity of the domestic three-waste co-combustion furnace technology, and in recent years, various chemical companies have launched many new projects of this type. [0003] In the production of the three-waste mixed combustion furnace, the diameter of the furnace of the combustion furnace is m...

AI Technical Summary

Problems solved by technology

[0003] In the production of the three-waste mixed combustion furnace, the diameter of the furnace of the combustion furnace is mostly Φ5400mm, which is designed to be Φ6000mm according to the production requirements of our company; a 500mm partition wall is built in the middle of the furnace, and the coal inlets of 1#, 2#, 3#, and 4# were originally designed On the furnace side of the combustion furnace, the coal feeding height is 1300mm. During the actual operation, the coal is thrown into the furnace under the action of the coal feeding wind, and under the action of the airflow blown out by the wind cap, part of the coal runs to the opposite side of the coal feeding port of the furnace. Due to the large furnace , when the coal reaches the other side of the coal inlet in the fluidized state, due to time and combustion reasons, the temperature on the other side of the coal outlet is low, and the furnace condition is difficult to control, which will cause part or all of the combustion furnace to go out, and the operation is difficult

Since the sleeve of the spiral coal feeder adopts a fully enclosed type, the coal is bonded and accumulated inside the sleeve, which increases the wear and resistance of the spiral coal feed auger, especially when the coal tide is mixed with low-quality coal and slag. It is more serious and brings hidden dangers to the safe operation of the spiral feeder

At present, the service life of each spiral coal feeder is about 2 months. Every time the auger of the spiral coal feeder breaks, it is difficult to maintain the temperature of the corresponding point. It is necessary to manually feed coal in time to maintain the load. It may cause collapse of the furnace, therefore, it is particularly important to solve this type of problem

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