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Method for disposing pallet oily black smoke and reducing consumption in production process

A technology of pellets and black smoke, applied in the field of metallurgy, can solve the problems of environmental pollution, energy, waste, etc.

Inactive Publication Date: 2013-07-17
张廷 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the above-mentioned problems of environmental pollution and energy waste that exist in the traditional chain grate rotary kiln roasting pellet technology

Method used

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  • Method for disposing pallet oily black smoke and reducing consumption in production process

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Embodiment Construction

[0015] The process of the invention includes: burner, rotary kiln, chain grate, heat process pipeline, pipeline regulating valve, smoke hood, flue gas pipeline, induced draft fan, concentrate drying system or coal powder preparation system combustion furnace, bag filter.

[0016] The technical scheme of the present invention is: a smoke hood is arranged at the tail of the grate machine, and is connected with the combustion furnace of the concentrate drying system or the pulverized coal preparation system through a pipeline, a smoke induction fan, and a flow regulating valve. 1. When igniting the oven, first close all the valves of the original system, drop the chain grate to let it loose, and ensure that the rotary kiln, chain grate, thermal process pipeline, and ring cooler are a relatively airtight integral container. Start the smoke induction fan, and suck the unburned oil and carbon black smoke (100℃~300℃) into the combustion furnace (~800℃) for secondary combustion through...

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PUM

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Abstract

The invention provides a method for eliminating exhausted oily black smoke generated by furnace baking with heavy oil in the process of ignition temperature-rise period of a pallet plant and reducing energy consumption. The technique method comprises the steps that a smoke suction cover absorbs incompletely-combusted oily smoke in the ignition furnace baking process, a combustion system of a concentrate drying system or a coal making system of the pallet plant is utilized to carry out secondary combustion on the black smoke, so that the incompletely-combusted oil and carbon in the smoke are sufficiently combusted. Meanwhile, the high-temperature (about 300 DEG C) smoke residual heat of a roasting system is utilized to reduce the energy consumption of the concentrate drying system or the coal making system, and the energy resource is saved.

Description

technical field [0001] The present invention relates to the production technology of pellets in the field of metallurgy, and specifically refers to an existing process for improving the production of metallurgical pellets, using existing equipment to realize secondary combustion of carbon black and unburned oil mist, reducing smoke Gas pollution emission, use the waste heat of flue gas to save energy. Background technique [0002] The traditional grate-rotary kiln pellet production process includes three major systems, roasting system, raw material system, and pulverized coal system. In the existing production, the grate-rotary kiln pellet production process requires quarterly overhaul and annual overhaul. For each overhaul, the roasting system: the side wall and upper cover of the grate, the inner lining of the rotary kiln, and the interior of the ring cooler The lining and main hot air ducts must be the focus of system maintenance, and the refractory materials of the roas...

Claims

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Application Information

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IPC IPC(8): F27D17/00C22B1/16
Inventor 张廷吴宝义朱僖卓
Owner 张廷
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