Blast cap of fluidized bed furnace

A boiling furnace and air cap technology, which is applied in the field of chemical production, can solve the problems of particle size reduction, strength reduction, air cap eye reduction, etc., and achieves the effect of increasing furnace temperature, increasing hot air volume, and improving operation rate.

CN103363519AInactive Publication Date: 2013-10-23WENGFU (GRP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-10-23
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment

[0016] The present invention has been used on a boiling hot blast stove, and the heat load of the boiling hot blast stove is 3350×10 4 KJ / h, the coal is transported by trolley, and the cinder is transported to the designated storage yard. After research and calculation, it was decided to renovate the previous hood, and increase the diameter of the hood eye (1), that is, from less than 5mm to 6-7mm in order to increase its ventilation and provide sufficient The amount of hot air, thereby improving the output and product quality.

[0017] A fluidized fluidized furnace hood structure of the present invention is as attached figure 1 As shown, a fluidized furnace air cap is cylindrical and has an air cap eye 1 on it, which is characterized in that the diameter of the air cap eye 1 is 6-7mm.

[0018] Effectiveness analysis:

[0019] Before the present invention was adopted, the hammer of the coal crusher was worn due to long-term use, and the coal crushing effect was relatively p...