Vertical kiln

Abstract

A shaft kiln is more energy-saving and environment-friendly through utilizing hot convection and vortex burning in the novel burning method and heating method. The shaft kiln can form eddying turbulence in a kiln chamber through utilizing pressurized air flow, and makes the material have even heating. As the movement is mutual, the heating method of rolling material is replaced by the movement of hot air flow around the material, and the material naturally moves to a preheating zone, a heating zone and a cooling zone through utilizing the natural settling, and the shaft kiln is provided with a fuel supply device, a burning chamber, a kiln chamber, a fan, an air pipe, refractory material and heat-insulating material. The shaft kiln is characterized in that an air inlet is arranged on the side walls of the burning chamber, and is connected with an air inlet pipe, and the fan is installed on the air inlet pipe, the burning chamber is connected with the fuel supply device, the kiln chamber is provided with a heating chamber and a cooling chamber, the lower portion of the heating chamber is communicated with the cooling chamber, a feeding inlet is arranged on the upper portion of the heating chamber, and an air outlet is arranged on the upper portion of the heating chamber, a discharge port is arranged on the lower portion of the cooling chamber, a kiln chamber air inlet is arranged between the heating chamber and the cooling chamber, and the burning chamber is provided with an air outlet which is communicated with a kiln air inlet.

Description

technical field [0001] The invention relates to the field of kiln equipment, in particular to a shaft kiln. Background technique [0002] Existing shaft kilns are mostly used for producing cement, lime, roasting, and calcining various ores and massive materials, etc., which generally have high energy consumption, insufficient environmental protection emissions, low heat utilization rate, mixed coal combustion in the kiln, and poor fuel combustion. Sufficient, too much dust and harmful gas emissions, uneven temperature in the furnace, unable to burn powdery materials and other problems. Contents of the invention [0003] The purpose of the present invention is to provide a shaft kiln with a new structure, which can make the fuel burn more fully, the energy utilization rate is higher, the emission is more environmentally friendly, and the harmful gas emission is greatly reduced, which can make the product more excellent, save energy and reduce consumption, and reduce product...

AI Technical Summary

Problems solved by technology

[0002] Existing shaft kilns are mostly used for producing cement, lime, roasting, and calcining various ores and massive materials, etc., which generally have high energy consumption, insufficient environmental protection emissions, low heat utilization rate, mixed coal combustion in the kiln, and poor fuel combustion. Sufficient, too much dust and harmful gas emissions, uneven temperature in the furnace, unable to burn powdery materials, etc.

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