Blast cap of fluidized bed furnace

Abstract

The invention provides a blast cap of a fluidized bed furnace. The blast cap is cylindric and provided with a blast cap hole. The blast cap is characterized in that the diameter of the blast cap hole is 6 to 7 mm. The blast cap of the fluidized bed furnace provided by the invention overcomes biases in the prior art and has the following effects and advantages: 1, the boiling effect of the fluidized bed furnace is obviously better; 2, furnace temperature is substantially increased; 3, a hot blast rate is greatly increased, and output and quality of hot blast are improved; 4, the operation rate of the fluidized bed furnace is enhanced through improvement of the blast cap; and 5, the environment is improved, and surge is eliminated. According to practical usage, the blast cap of the fluidized bed furnace enables a preset purpose to be achieved and is applicable to fluidized bed furnaces.

Description

technical field [0001] The invention relates to the technical field of chemical production, in particular to a fluidized fluidized furnace air cap. Background technique [0002] The production of granular ammonium sulfate mainly adopts the "integrated technology of spraying, granulation, drying and internal return", and a hot blast stove must be used to provide sufficient hot air. The hot blast stove adopts the boiling combustion method, and the main equipment includes the main body of the boiling hot blast stove, the air cap and the auxiliary coal feeding facilities. After the flue gas produced by combustion is settled and dedusted, it is mixed with cold air through the supplementary air valve to adjust to the required temperature and sent to the spray granulation dryer for material drying. During the production process, the hood eye of the boiling hot blast stove is often blocked by coal slag, causing the hood eye to become smaller, resulting in a smaller air volume blown...

AI Technical Summary

Problems solved by technology

During the production process, the hood eye of the boiling hot blast stove is often blocked by coal slag, causing the hood eye to become smaller, resulting in a smaller air volume blown by the blower through the hood eye, the furnace fuel boiling effect becomes poor, and the furnace provides insufficient hot air, which seriously affects product quality. and production load

There are also big problems in product quality: nitrogen content is often insufficient, particle size decreases, strength decreases, products absorb moisture, product surface is not smooth, product color difference is large, etc.

It is generally believed that the shape of the fluidized furnace air cap should be changed, such as the Chinese patent ZL200720101514.1 "boiling furnace air cap" and ZL201020290097.1 "a fluidized furnace air cap", both of which have changed the shape of the fluidized furnace air cap, but the actual use effect on the boiling hot blast stove is not ideal

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