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Regenerative coal produced by multiple kinds of oily sludge in oil refinery and preparation method thereof

A technology of oil refinery and sludge, applied in the field of waste treatment, can solve the problems of occupying large cultivated land, soil air and air pollution, etc., and achieve the effect of reducing pollution

Inactive Publication Date: 2011-02-02
广州中滔绿由环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because oily sludge contains a large amount of petroleum substances, it not only occupies a large amount of cultivated land, but also causes environmental pollution to the surrounding soil, water, and air.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Activated sludge produced by treating industrial wastewater from oil refineries, electroplating wastewater, oily wastewater, and domestic sewage from petroleum machinery processing through flotation, filtration, flocculation, and chemical methods, as well as bottom sludge in crude oil separators and flotation pools A combination of scum and crude oil tank bottom sludge, etc., after dehydration to a variety of oily sludge with a moisture content of 70-73%, for standby;

[0052] The solid waste discharged from the coal mining process and coal washing process is crushed, sorted, pulverized, magnetically separated, dried, pulverized, and sieved to make coal gangue powder with a particle size of -2mm for future use;

[0053] The waste ash discharged from the domestic waste in the process of incineration and power generation through the flue gas dust removal system is sorted and magnetically separated to remove scrap metal, then dried, wheel milled and sieved to make a powder ...

Embodiment 2

[0057] Get the various oily sludge 70kg of embodiment 1, coal gangue powder 45kg, waste incineration fly ash powder 25kg, quicklime powder 20kg, calcium sulfate powder 8kg, iron trichloride 5kg, aluminum sulfate 5kg, polyacrylamide 0.008kg, 0.006kg of combustion enhancer, 2kg of ferrous sulfate, 6kg of magnesium sulfate, 0.8kg of Li macromolecule heavy metal collector and 8kg of water, the above raw materials are stirred with a twin-shaft mixer until they are wet, and then extruded by a vacuum extruder Made into rod-shaped recycled coal, after natural drying at room temperature, it is made into various mixed oily sludge recycled coal products. According to the inspection results of the Guangdong Technical Supervision Coal Product Quality Supervision and Inspection Station: its calorific value is 23.6MJ / Kg, which is a qualified product.

Embodiment 3

[0059] Get the various oily sludge 55kg of embodiment 1, coal gangue powder 38kg, waste incineration fly ash powder 18kg, quicklime powder 15kg, calcium sulfate powder 6kg, iron trichloride 3.5kg, aluminum sulfate 3.5kg, poly Acrylamide 0.006kg, combustion enhancer 0.004kg, ferrous sulfate 1.5kg, magnesium sulfate 3.5kg, Li macromolecule heavy metal collector 0.7kg and water 6kg, the above-mentioned raw materials are mixed with a twin-shaft mixing mixer to become wet, and then vacuum extruded Spherical recycled coal is extruded by a press, and after natural drying at room temperature, it is made into an oily sludge recycled coal product. According to the inspection results of the Guangdong Technical Supervision Coal Product Quality Supervision and Inspection Station: its calorific value is 24.38MJ / Kg, which is a qualified product.

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Abstract

The invention relates to regenerative coal produced by multiple kinds of oily sludge in an oil refinery and a preparation method thereof. The method is characterized by comprising the following steps of: stirring multiple kinds of oily sludge, coal gangue, refuse burning fly ash, quick lime powder, calcium sulfate, ferric trichloride, aluminum sulfate, polyacrylamide, a combustion improver, ferrous sulfate, magnesium sulfate, a Li macromolecule collection agent, water and the like serving as raw materials into a wet state by using a double-shaft mixing blender and extruding to prepare block, rod or spherical regenerative coals by using a vacuum extruder; and naturally drying at normal temperature to prepare various mixed oily sludge regenerative coal products. The regenerative coal has the advantages of high heat value, application of the burned ash to raw materials of production and construction materials, waste recycling, capacity of meeting national regulation on energy conservation, emission reduction and environmental protection, no pollution, low cost and high benefit.

Description

technical field [0001] The present invention relates to a kind of regenerated coal produced by various oily sludges from oil refineries, specifically, it is a regenerated coal produced from various oily sludges after dehydration, coal gangue and waste incineration fly ash as main raw materials. The field of waste treatment. [0002] The present invention also relates to a method for producing the recycled coal. Background technique [0003] Oily sludge is industrial wastewater from oil refineries, electroplating wastewater, oily wastewater and domestic sewage produced by petroleum machinery processing. Activated sludge and crude oil separation produced after treatment by sewage treatment plants by flotation, filtration, flocculation, chemical and other methods The mixed oily sludge such as pool bottom sludge, flotation tank scum and crude oil tank bottom sludge is dehydrated to a moisture content of about 70%, and flotation scum produces the largest amount, accounting for 8...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/48
CPCY02E50/30
Inventor 李桓宇古耀坤
Owner 广州中滔绿由环保科技有限公司
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