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Fertilizer production process hot air supply system using waste heat of flue gas

A production process and hot air supply technology, applied in the field of hot air supply system for fertilizer production process, can solve the problems of increased operating costs and high energy consumption, and achieve the effects of reducing gel fluidity, saving energy and extending service life

Active Publication Date: 2021-09-28
WUZHOUFENG AGRI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this method is high energy consumption, which leads to increased operating costs of enterprises

Method used

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  • Fertilizer production process hot air supply system using waste heat of flue gas

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Add polyacrylamide and distilled water into the container at a mass ratio of 8:92, heat to 94°C, stir until completely dissolved, cool to gel, and obtain product A;

[0032] 2) Mix product A, potassium chloride, sodium dodecylbenzenesulfonate and iron powder according to the mass ratio of 10:6:5:80 and then granulate to obtain gel particles, which are called product B; and,

[0033] Product A, zinc powder, potassium chloride and sodium dodecylbenzenesulfonate are mixed according to a mass ratio of 10:80:6:6 and then granulated to obtain gel particles, which are called product C;

[0034] 3) When using, product B and product C are compatible according to the mass ratio of 1:1 to obtain the self-heating material of the present invention.

Embodiment 2

[0036] 1) Add sodium alginate and distilled water into the container according to the mass ratio of 3:97, heat to 80°C, stir until completely dissolved, cool to gel, and obtain product A;

[0037] 2) Mix product A, potassium sulfate, sodium lauryl sulfate and iron powder according to the mass ratio of 5:1:10:93 and then granulate to obtain gel particles, which are called product B; and,

[0038] Product A, magnesium powder, potassium sulfate and sodium lauryl sulfate are mixed according to a mass ratio of 15:65:10:1 and then granulated to obtain gel particles, which are called product C;

[0039] 3) When in use, product B and product C are combined according to the mass ratio of 15:85 to obtain the self-heating material of the present invention.

Embodiment 3

[0041] 1) Add gelatin and distilled water into the container according to the mass ratio of 15:60, heat to 98°C, stir until completely dissolved, cool to gel, and obtain product A;

[0042] 2) Mix product A, sodium sulfate, sorbitan fatty acid ester-20 and iron powder according to the mass ratio of 15:10:1:65 and then granulate to obtain gel particles, which are called product B; and,

[0043] Product A, lead powder, sodium sulfate and sorbitan fatty acid ester-20 are mixed according to a mass ratio of 5:93:1:10 and then granulated to obtain gel particles, which are called product C;

[0044] 3) When in use, product B and product C are combined according to the mass ratio of 85:15 to obtain the self-heating material of the present invention.

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Abstract

The present invention is a hot air supply system for fertilizer production process utilizing waste heat of flue gas, which includes a heat exchange tower with a normal temperature air inlet and a hot air outlet, the normal temperature air inlet is connected with an air filter; the heat exchange tower is equipped with A heat exchanger, the inlet end of the heat exchanger communicates with the smoke outlet of the boiler, the outlet end is connected with a dust collector, and the smoke outlet end of the dust collector is connected with an induced draft fan. This system makes full use of the heat energy of the high-temperature flue gas produced by boiler combustion, and transfers the heat energy to the air through heat exchange. The hot air is used for drying and heating of the fertilizer production process. It has the outstanding effects of saving energy and reducing production costs.

Description

technical field [0001] The invention relates to a hot air supply system, in particular to a hot air supply system for a fertilizer production process utilizing waste heat of flue gas. Background technique [0002] The fertilizer production process is inseparable from hot air, such as raw material reaction heating, granule drying and other processes require hot air heating. At present, fertilizer production enterprises generally prepare hot air by electrically heating the air to increase its temperature. The main disadvantage of this method is high energy consumption, which in turn leads to increased operating costs for enterprises. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hot air supply system for the fertilizer production process using the waste heat of flue gas. The heating method combines high-temperature flue gas and self-heating material heating, comprehensively utilizes boiler waste heat and chem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H3/06F24V30/00
CPCF24H3/06F24V30/00
Inventor 王学江于拥军黄善华王月刚
Owner WUZHOUFENG AGRI SCI & TECH
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